def main():
pk = SigningKey(Parameters.private_key_outsourcer)
vk = VerifyKey(OutsourceContract.public_key_contractor)
vk_verifier = VerifyKey(VerifierContract.public_key_verifier)
# video info
width = Parameters.input_size
height = Parameters.input_size
quality = Parameters.quality
receiver_ip = Parameters.receiver_ip
receiver_port = Parameters.receiver_port
receiver_port_verifier = Parameters.receiver_port_verfier
sending_port_verifier = Parameters.sending_port_verifier
verifier_ip = Parameters.target_ip_verifier
sending_port = Parameters.sending_port
# statistics info
moving_average_points = Parameters.moving_average_points
merkle_tree_interval = OutsourceContract.merkle_tree_interval
maxmium_number_of_frames_ahead = Parameters.maxmium_number_of_frames_ahead
minimum_response_rate = Parameters.minimum_response_rate
warm_up_time = Parameters.warm_up_time
sampling_interval = Parameters.sampling_interval
maxmium_number_of_frames_ahead_verifier = Parameters.maxmium_number_of_frames_ahead_verifier
maxmium_number_of_verifier_sample_missed_consecutively = Parameters.maxmium_number_of_verifier_sample_missed_consecutively
minimum_response_rate_verifier = Parameters.minimum_response_rate_verifier
framesync = Parameters.framesync
image_counter = ImageCounter(maxmium_number_of_frames_ahead)
image_counter_verifier = ImageCounter(maxmium_number_of_frames_ahead)
r = receiverlogic.Receiver(image_counter, receiver_ip, receiver_port)
r_verifier = receiverlogic.Receiver(
image_counter_verifier, receiver_ip, receiver_port_verifier)
print('Waiting for contractor and verifier to connect ...')
start_listening_time = time.perf_counter()
while r.getConnectionEstablished() == False or r_verifier.getConnectionEstablished() == False:
if time.perf_counter() - start_listening_time > 35:
fault = 0
if r_verifier.getConnectionEstablished() == False:
fault += 1
if r.getConnectionEstablished() == False:
fault += 1
r.close()
r_verifier.close()
time.sleep(1)
if fault == 0:
sys.exit(
'Contract aborted: Contractor did not connect in time. Possible Consquences for Contractor: Blacklist, Bad Review')
if fault == 1:
sys.exit(
'Contract aborted: Verifier did not connect in time. Possible Consquences for Verifier: Blacklist, Bad Review')
if fault == 2:
sys.exit(
'Contract aborted: Contractor and Verifier did not connect in time. Possible Consquences for Contractor and Verifier: Blacklist, Bad Review')
time.sleep(0.5)
print('Connection with contractor and verfier established')
a = 0
# saves input_counter, response, signautre of current sample
outsourcerSample = (-1, '-1', '')
# saves input_counter, response, signature of current sample
verifierSample = (-1, '-1', '')
outsourcer_sample_dict = {}
verifier_sample_dict = {}
output_counter = 0
output_counter_verifier = 0
lastSample = -1 # last sample index that was compared
saved_compressed_sample_image = b'' #stores the compressed last sample image. If signed, unmatching responses are received any third party can verify with this saved image which response is not ocrrect
contractHash = Helperfunctions.hashContract().encode('latin1')
verifier_contract_hash = Helperfunctions.hashVerifierContract().encode('latin1')
sampling_index = -1
verifier_sample_processed = 0
verifier_sample_missed = 0 #how many samples were missed in total
verifier_sample_missed_consecutively = 0 #how many samples were missed conecutively
if merkle_tree_interval > 0:
mt = MerkleTools()
interval_count = 0
time_to_challenge = False
next_merkle_chall = 0
curr_merkle_chall = 0
current_root_hash = ''
next_merkle_response = ''
curr_merkle_response = ''
sample_received_in_interval = -2
abort_at_next_merkle_root = False
else:
random_number = random.randint(0, sampling_interval - 1)
# initialize sender
image_sender = Sender(sending_port, pk, quality)
image_sender.set_quality(quality)
print('Sender Initialized')
image_sender_verifier = Sender(sending_port_verifier, pk, quality)
image_sender.set_quality(quality)
print('Verifier Sender Initialized')
# initialize RPi camera
rpi_cam = RPiCamera(width, height)
rpi_cam.start()
print('Camera Started')
time.sleep(1.0)
# statistics
moving_average_fps = MovingAverage(moving_average_points)
moving_average_camera_time = MovingAverage(moving_average_points)
moving_average_compress_time = MovingAverage(moving_average_points)
moving_average_sign_time = MovingAverage(moving_average_points)
moving_average_send_time = MovingAverage(moving_average_points)
moving_average_response_time = MovingAverage(moving_average_points)
moving_average_receive_time = MovingAverage(moving_average_points)
moving_average_verify_time = MovingAverage(moving_average_points)
moving_average_last_Sample = MovingAverage(moving_average_points)
# streaming
print('Start Streaming')
while True:
start_time = time.perf_counter()
# capture image
image = rpi_cam.get_image()
if framesync:
if image_counter.getInputCounter() > warm_up_time:
milisecs_outsourcer = moving_average_fps.get_moving_average()
frames_ahead_average = moving_average_response_time.get_moving_average()
adjusted_milisecs = (frames_ahead_average-1)* (1/milisecs_outsourcer) - 0.005 #add safety puffer
#adjusted_milisecs -= 0.01
if adjusted_milisecs > 0:
time.sleep(adjusted_milisecs)
camera_time = time.perf_counter()
if merkle_tree_interval == 0:
# if index is at random sample, send random sample to verifier
if sampling_index == image_counter.getInputCounter(): #send image to both outsourcer and verifier
compress_time, sign_time, send_time, compressed = image_sender.send_image_compressed_with_return(
image_counter.getInputCounter(), image, contractHash, image_counter.getNumberofOutputsReceived())
compress_time2, sign_time2, send_time2, = image_sender_verifier.send_image_compressed_with_input(
image_counter.getInputCounter(), image, verifier_contract_hash, image_counter_verifier.getNumberofOutputsReceived(), compressed)
saved_compressed_sample_image = compressed
compress_time += compress_time2
sign_time += sign_time2
send_time +=send_time2
else:
compress_time, sign_time, send_time = image_sender.send_image_compressed(
image_counter.getInputCounter(), image, contractHash, image_counter.getNumberofOutputsReceived())
else:
# if sampling_index == image_counter.getInputCounter() or sampling_index + sampling_interval < image_counter.getInputCounter(): # only for high frequency to reduce receive time
if sampling_index == image_counter.getInputCounter(): #send image to both outsourcer and verifier
compress_time, sign_time, send_time, compressed = image_sender.send_image_compressed_Merkle_with_return(
image_counter.getInputCounter(), image, contractHash, image_counter.getNumberofOutputsReceived(), curr_merkle_chall, interval_count, time_to_challenge)
compress_time2, sign_time2, send_time2 = image_sender_verifier.send_image_compressed_with_input(
image_counter.getInputCounter(), image, verifier_contract_hash, image_counter_verifier.getNumberofOutputsReceived(), compressed)
saved_compressed_sample_image = compressed
compress_time += compress_time2
sign_time += sign_time2
send_time += send_time2
else:
compress_time, sign_time, send_time = image_sender.send_image_compressed_Merkle(
image_counter.getInputCounter(), image, contractHash, image_counter.getNumberofOutputsReceived(), curr_merkle_chall, interval_count, time_to_challenge)
# verifying
receive_time = time.perf_counter()
responses = []
signatures_outsourcer = []
output = r.getAll()
if merkle_tree_interval == 0:
for o in output:
#print('Outsourcer Response:', o) #outputPrint
if o[:5] == 'abort':
image_sender_verifier.send_abort(image)
r.close()
r_verifier.close()
time.sleep(1)
sys.exit('Contract aborted by contractor according to custom.')
try:
sig = o.split(';--')[1].encode('latin1')
msg = o.split(';--')[0].encode('latin1')
except:
r.close()
r_verifier.close()
time.sleep(1)
sys.exit(
'Contract aborted: Contractor response is ill formated. Possible Consquences for Contractor: Blacklist, Bad Review')
try:
vk.verify(msg + contractHash, sig)
except:
r.close()
r_verifier.close()
time.sleep(1)
sys.exit(
'Contract aborted: Contractor signature does not match response. Possible Consquences for Contractor: Blacklist, Bad Review')
responses.append(msg)
signatures_outsourcer.append(sig)
else: # Merkle tree verification is active
if image_counter.getNumberofOutputsReceived() > (merkle_tree_interval) * (interval_count+2):
r.close()
r_verifier.close()
time.sleep(1)
sys.exit('Contract aborted: No root hash received for current interval in time. Possible Consquences for Contractor: Blacklist, Bad Review, Refuse of Payment for images from current interval')
for o in output:
#print('Outsourcer Response:', o) #outputPrint
if o[:5] == 'abort':
image_sender_verifier.send_abort(image)
r.close()
r_verifier.close()
time.sleep(1)
sys.exit('Contract aborted by contractor according to custom')
root_hash_received = False
msg = o.split(';--')[0].encode('latin1') # get output
# section to check for proofs
if time_to_challenge == True: # If it's true then it's time to receive a challenge response
proof_received = False # check if message structure indicates that it contains a proof
if len(o.split(';--')) > 3:
challenge_response = []
try:
signature = o.split(';--')[1].encode('latin1')
signatures_outsourcer.append(signature)
challenge_response = o.split(';--')[2:]
leaf_node = challenge_response[-2]
root_node = challenge_response[-1]
proof_string = challenge_response[0:-2]
proofList = []
for strings in proof_string:
strings = strings.replace("'", "\"")
proofList.append(json.loads(strings))
proof_received = True
except:
pass
if proof_received: # if message contains a proof
# check if root node sent earlier matches current one
mt = MerkleTools()
if sample_received_in_interval == interval_count -1: #skip this part of the challenge if no sample was compared in last interval count
mt.add_leaf(curr_merkle_response.decode('latin1'), True) #get last response into same format as leaf_node
#if leaf_node != mt.get_leaf(0):
# print('Merkle tree leaf node does not match earlier sent response')
#else:
#print('Success')
if current_root_hash == root_node.encode('latin1'): #check if signed root hash received earlier equals sent root hash
try:
# print(str(challenge_response).encode('latin1') + bytes(interval_count-1) + contractHash)
# print(challenge_response)
vk.verify(str(challenge_response).encode(
'latin1') + bytes(interval_count-1) + contractHash, signature)
except:
r.close()
r_verifier.close()
time.sleep(1)
sys.exit(
'Contract aborted: Contractor signature of challenge response is incorrect. Possible Consquences for Contractor: Blacklist, Bad Review, Refuse of Payment for images from current interval')
try:
merkle_proof_of_membership = mt.validate_proof(
proofList, leaf_node, root_node) # verify proof of memebrship
# print('Proof of membership for random sample in interval' + str(interval_count -1) + ' was successful')
except:
merkle_proof_of_membership = False
if merkle_proof_of_membership == True:
time_to_challenge = False # all challenges passed
else:
r.close()
r_verifier.close()
time.sleep(1)
sys.exit(
'Contract aborted: Leaf is not contained in Merkle Tree. Possible Consquences for Contractor: Blacklist, Bad Review, Refuse of Payment for images from current interval, fine')
else:
r.close()
r_verifier.close()
time.sleep(1)
sys.exit('Contract aborted: Contractor signature of root hash received at challenge response does not match previous signed root hash . Possible Consquences for Contractor: Blacklist, Bad Review, Refuse of Payment for images from current interval, fine')
# section to check for merkle roots
# if it's true then it's time to receive a new Merkle root
if image_counter.getNumberofOutputsReceived() >= (merkle_tree_interval) * (interval_count+1):
if time_to_challenge == True:
r.close()
r_verifier.close()
time.sleep(1)
sys.exit('Contract aborted: Merkle Tree proof of membership challenge response was not received in time. Possible Consquences for Contractor: Blacklist, Bad Review, Refuse of Payment for images from current interval')
try: # check if merkle root received
root_hash = o.split(';--')[1].encode('latin1')
sig = o.split(';--')[2].encode('latin1')
if len(o.split(';--')) == 3:
root_hash_received = True
except:
pass
if root_hash_received == True: # if root hash received, verify signature
root_hash_received = False
time_to_challenge = True
random_number = random.randint(
0, merkle_tree_interval - 1)
try:
match = vk.verify(
root_hash + bytes(interval_count) + contractHash, sig)
interval_count += 1
curr_merkle_chall = next_merkle_chall #to send last checked sample as challenge
current_root_hash = root_hash
curr_merkle_response = next_merkle_response #to remmeber last check response
# print(interval_count, image_counter.getNumberofOutputsReceived())
except:
r.close()
r_verifier.close()
time.sleep(1)
sys.exit(
'Contract aborted: Contractor signature of root hash is ill formated. Possible Consquences for Contractor: Blacklist, Bad Review, Refuse of Payment for images from current interval')
if abort_at_next_merkle_root:
r.close()
r_verifier.close()
time.sleep(1)
sys.exit(
'Contract aborted: Merkle Tree is built on responses unequal to responses of the verifier. Possible Consquences for Contractor: Fine, Blacklist, Bad Review')
signatures_outsourcer.append(sig)
responses.append(msg)
if len(signatures_outsourcer) == 0:
signatures_outsourcer.append('Next merkle root serves as a proof')
responses_verifier = []
signatures_verifier = []
output_verifier = r_verifier.getAll()
for o in output_verifier:
#print('Verfifier Response:', o) #outputPrint
if o[:5] == 'abort':
image_sender.send_abort(image)
r.close()
r_verifier.close()
time.sleep(1)
sys.exit('Contract aborted by verfier according to custom')
try:
sig = o.split(';--')[1].encode('latin1')
msg = o.split(';--')[0].encode('latin1')
except:
r.close()
r_verifier.close()
time.sleep(1)
sys.exit(
'Contract aborted: Verifier response is ill formated. Possible Consquences for Verifier: Blacklist, Bad Review')
try:
vk_verifier.verify(msg + verifier_contract_hash, sig)
except:
r.close()
r_verifier.close()
time.sleep(1)
sys.exit(
'Contract aborted: Verifier signature does not match response. Possible Consquences for Verifier: Blacklist, Bad Review')
responses_verifier.append(msg)
signatures_verifier.append(sig)
# make sure outspurcer has even computed a new output before assigning a new sample, otherwise it's possible to never compare samples
if image_counter.getOutputCounter() == sampling_index and len(responses) > 0:
if int(responses[-1].decode('latin1')[5:].split(':', 1)[0]) == sampling_index: #in rare cases of threading timing output counter and responses can be desynced
outsourcer_sample_dict[sampling_index] = (
sampling_index, responses[-1], signatures_outsourcer[-1])
#merkle_challenge_index = image_counter.getOutputCounter() % merkle_tree_interval
if image_counter_verifier.getOutputCounter() == sampling_index and len(responses_verifier) > 0:
# make sure verfier has even computed a new output beofre assigning a new sample, otherwise it's possible to never compare samples
if int(responses_verifier[-1].decode('latin1')[5:].split(':', 1)[0]) == sampling_index: #in rare cases of threading timing output counter and responses can be desynced
verifier_sample_dict[sampling_index] = (
sampling_index, responses_verifier[-1], signatures_verifier[-1])
sample_checked = False
if sampling_index in verifier_sample_dict and sampling_index in outsourcer_sample_dict:
if outsourcer_sample_dict[sampling_index][0] == verifier_sample_dict[sampling_index][0]:
sample_checked = True
# compare resp
if lastSample != outsourcer_sample_dict[sampling_index][0]:
lastSample = outsourcer_sample_dict[sampling_index][0]
if outsourcer_sample_dict[sampling_index][1] == verifier_sample_dict[sampling_index][1]:
#print('The following sample was found to be equal:', outsourcer_sample_dict[sampling_index][1]) #outputPrint
if merkle_tree_interval > 0:
next_merkle_chall = outsourcer_sample_dict[sampling_index][0]
next_merkle_response = outsourcer_sample_dict[sampling_index][1]
sample_received_in_interval = interval_count #used to check if a sample was received in current merkle interval
outsourcer_sample_dict.clear()
verifier_sample_dict.clear()
#outsourcer_sample_dict = {} not needed since keys dont repeat
#verifier_sample_dict = {}
else: #sample was found to be not equal
if merkle_tree_interval == 0:
r.close()
r_verifier.close()
time.sleep(1)
sys.exit('Contract aborted. The following outputs are not equal: Outsourcer: ' +str(outsourcer_sample_dict[sampling_index][1]) +
' , Verifier: ' + str(verifier_sample_dict[sampling_index][1]) + ' Possible consequences for cheating party: Fine, Blacklist, Bad Review '
)
else:
print(
"The following outputs are not equal:", outsourcer_sample_dict[sampling_index][1], verifier_sample_dict[sampling_index][1]) #if no merkle tree -> exit, if merkle tree wait for next chall
abort_at_next_merkle_root = True
if image_counter.getNumberofOutputsReceived() % sampling_interval == 0: # pick new random sample
# only pick next sample if both parties have already processed last sample
if image_counter_verifier.getOutputCounter() >= sampling_index and image_counter.getOutputCounter() >= sampling_index:
# random_number = random.randint(0,sampling_interval -1 - maxmium_number_of_frames_ahead)
random_number = random.randint(1, sampling_interval)
sampling_index = random_number + image_counter.getInputCounter()
verifier_sample_processed += 1 #save that verifier sucessfully processed sample
verifier_sample_missed_consecutively = 0 #reset
else:
if image_counter.getInputCounter() - sampling_index > maxmium_number_of_frames_ahead_verifier: #means that verifier has lost sample or is too slow
random_number = random.randint(1, sampling_interval)
sampling_index = random_number + image_counter.getInputCounter()
verifier_sample_missed+=1 #save that verifier missed sample because of frame loss or being too slow
verifier_sample_missed_consecutively+=1
if image_counter.getInputCounter() > warm_up_time:
if verifier_sample_missed_consecutively > maxmium_number_of_verifier_sample_missed_consecutively or verifier_sample_missed/verifier_sample_processed < minimum_response_rate_verifier :
r.close()
r_verifier.close()
time.sleep(1)
sys.exit(
'Contract aborted: Verifier has failed to process enough samples in time. Possible Consquences for Verifier: Bad Review, Blacklist')
verify_time = time.perf_counter()
if(OutsourceContract.criteria == 'Atleast 2 objects detected'):
for st in responses:
if len(st) > 1000:
print(st)
frames_behind = image_counter.getFramesAhead()
if frames_behind > maxmium_number_of_frames_ahead:
if image_counter.getInputCounter() > warm_up_time:
# print(image_counter.getInputCounter(), image_counter.getFramesAhead())
r.close()
r_verifier.close()
time.sleep(1)
sys.exit(
'Contract aborted: Contractor response delay rate is too high. Possible Consquences for Contractor: Bad Review, Blacklist')
if(image_counter.getNumberofOutputsReceived() < image_counter.getInputCounter() * minimum_response_rate):
if image_counter.getInputCounter() > warm_up_time:
r.close()
r_verifier.close()
time.sleep(1)
sys.exit(
'Contract aborted: Contractor response rate is too low. Possible Consquences for Contractor: Bad Review, Blacklist')
if(image_counter.getNumberofOutputsReceived() == 800):
a = time.perf_counter()
if(image_counter.getNumberofOutputsReceived() == 1200):
a = time.perf_counter() - a
print('contractor', a)
if(image_counter_verifier.getNumberofOutputsReceived() == 300):
b = time.perf_counter()
if(image_counter_verifier.getNumberofOutputsReceived() == 700):
b = time.perf_counter() - b
print('verifier', b)
# statistics
moving_average_camera_time.add(camera_time - start_time)
moving_average_compress_time.add(compress_time)
moving_average_sign_time.add(sign_time)
moving_average_send_time.add(send_time)
moving_average_verify_time.add(verify_time - receive_time)
if(frames_behind != -1):
moving_average_response_time.add(frames_behind)
if sample_checked:
moving_average_last_Sample.add(
image_counter.getInputCounter() - lastSample)
total_time = moving_average_camera_time.get_moving_average() \
+ moving_average_compress_time.get_moving_average() \
+ moving_average_sign_time.get_moving_average() \
+ moving_average_send_time.get_moving_average()
instant_fps = 1 / (time.perf_counter() - start_time)
moving_average_fps.add(instant_fps)
# terminal prints
if image_counter.getInputCounter() % 20 == 0:
print("total: %5.1fms (%5.1ffps) camera %4.1f (%4.1f%%) compressing %4.1f (%4.1f%%) signing %4.1f (%4.1f%%) sending %4.1f (%4.1f%%) frames ahead %4.1f ahead of sample %4.1f verify time %4.1f (%4.1f%%) "
% (
1000/moving_average_fps.get_moving_average(),
moving_average_fps.get_moving_average(),
moving_average_camera_time.get_moving_average()*1000,
moving_average_camera_time.get_moving_average() / total_time * 100,
moving_average_compress_time.get_moving_average()*1000,
moving_average_compress_time.get_moving_average() / total_time * 100,
moving_average_sign_time.get_moving_average()*1000,
moving_average_sign_time.get_moving_average() / total_time * 100,
moving_average_send_time.get_moving_average()*1000,
moving_average_send_time.get_moving_average() / total_time * 100,
moving_average_response_time.get_moving_average(),
moving_average_last_Sample.get_moving_average(),
moving_average_verify_time.get_moving_average()*1000,
moving_average_verify_time.get_moving_average() / total_time * 100), end='\r')
# counter
image_counter.increaseInputCounter()
def main():
"""
main function interface
:return: nothing
"""
# params
width = 640
height = 368
moving_average_points = 50
# initialize RPi camera
rpi_cam = RPiCamera(width, height)
rpi_cam.start()
print('RPi Bird Feeder -> RPi Camera Ready')
time.sleep(1.0)
# initialize object detection model
model = Model()
model.load_model(
'models_edgetpu/mobilenet_ssd_v2_coco_quant_postprocess_edgetpu.tflite'
)
model.load_labels('labels_edgetpu/coco_labels.txt')
model.set_confidence_level(0.6)
print('RPi Bird Feeder -> Object Detection Model Initialized')
time.sleep(1.0)
# initialize render
render = Render()
print('RPi Bird Feeder -> Render Ready')
time.sleep(0.5)
# statistics
moving_average_fps = MovingAverage(moving_average_points)
moving_average_receive_time = MovingAverage(moving_average_points)
moving_average_model_load_image_time = MovingAverage(moving_average_points)
moving_average_model_inference_time = MovingAverage(moving_average_points)
moving_average_image_show_time = MovingAverage(moving_average_points)
# streaming
image_count = 0
print('RPi Bird Feeder -> Receiver Streaming')
time.sleep(0.5)
bird_pic_count = 0
p = subprocess.Popen(['ls', '-l'], shell=True)
while True:
start_time = time.monotonic()
# get image
image = rpi_cam.get_image()
received_time = time.monotonic()
# load image into model (cv2 or pil backend)
model.load_image_cv2_backend(image)
model_loaded_image_time = time.monotonic()
# model inference
class_ids, scores, boxes = model.inference()
model_inferenced_time = time.monotonic()
# render image
render.set_image(image)
render.render_detection(model.labels, class_ids, boxes, image.shape[1],
image.shape[0], (45, 227, 227), 3)
for i in range(len(class_ids)):
if int(class_ids[i]) == 0 and p.poll(
) is not None: # and (after_render_time - bird_time) > 5:
cmd = 'python3 /home/pi/Documents/bird-feeder/DSLR.py --DSLRPICDIR /home/pi/Documents/bird-feeder/DSLR_pics --FILENAME ' + str(
bird_pic_count) + '.jpg'
print(cmd)
p = subprocess.Popen(cmd, shell=True)
bird_pic_count += 1
render.render_fps(moving_average_fps.get_moving_average())
# show image
cv2.imshow('Bird Feeder', image)
image_showed_time = time.monotonic()
if cv2.waitKey(1) == ord('q'):
break
# statistics
instant_fps = 1 / (image_showed_time - start_time)
moving_average_fps.add(instant_fps)
receive_time = received_time - start_time
moving_average_receive_time.add(receive_time)
model_load_image_time = model_loaded_image_time - received_time
moving_average_model_load_image_time.add(model_load_image_time)
model_inference_time = model_inferenced_time - model_loaded_image_time
moving_average_model_inference_time.add(model_inference_time)
image_show_time = image_showed_time - model_inferenced_time
moving_average_image_show_time.add(image_show_time)
total_time = moving_average_receive_time.get_moving_average() \
+ moving_average_model_load_image_time.get_moving_average() \
+ moving_average_model_inference_time.get_moving_average() \
+ moving_average_image_show_time.get_moving_average()
# terminal prints
if image_count % 50 == 0:
print(" receiver's fps: %4.1f"
" receiver's time components: "
"receiving %4.1f%% "
"model load image %4.1f%% "
"model inference %4.1f%% "
"image show %4.1f%%" %
(moving_average_fps.get_moving_average(),
moving_average_receive_time.get_moving_average() /
total_time * 100,
moving_average_model_load_image_time.get_moving_average() /
total_time * 100,
moving_average_model_inference_time.get_moving_average() /
total_time * 100,
moving_average_image_show_time.get_moving_average() /
total_time * 100)) #, end='\r')
# counter
image_count += 1
if image_count == 10000000:
image_count = 0
def main(_argv):
# get paramters and contract details
if Parameters.is_contractor == True:
vk_Bytes = OutsourceContract.public_key_outsourcer
merkle_tree_interval = OutsourceContract.merkle_tree_interval
contractHash = Helperfunctions.hashContract().encode('latin1')
model_to_use = OutsourceContract.model
tiny = OutsourceContract.tiny
else:
vk_Bytes = VerifierContract.public_key_outsourcer
contractHash = Helperfunctions.hashVerifierContract().encode('latin1')
model_to_use = VerifierContract.model
tiny = VerifierContract.tiny
merkle_tree_interval = 0
port = Parameters.port_outsourcer
sendingPort = Parameters.sendingPort
hostname = Parameters.ip_outsourcer # Use to receive from other computer
minimum_receive_rate_from_contractor = Parameters.minimum_receive_rate_from_contractor
dont_show = Parameters.dont_show
framework = Parameters.framework
weights = Parameters.weights
count = Parameters.count
info = Parameters.info
crop = Parameters.crop
iou = Parameters.iou
score = Parameters.score
input_size = Parameters.input_size
edgeTPU_model_path = Parameters.edgeTPU_model_path
edgeTPU_label_path = Parameters.edgeTPU_label_Path
edgeTPU_confidence_level = Parameters.EdgeTPU_confidence_level
# configure thread handler to handle T2 (receiving), T3 (decompressing, verifying), and T4 (postprocssing, signing, sending, displaying)
receiver = vss3.ThreadHandler(hostname, port, merkle_tree_interval, contractHash, minimum_receive_rate_from_contractor, vk_Bytes, input_size, sendingPort)
# configure model
model = Model()
model.load_model(edgeTPU_model_path)
model.load_labels(edgeTPU_label_path)
model.set_confidence_level(edgeTPU_confidence_level)
print('Receiver Initialized')
# configure and iniitialize statistic variables
moving_average_points = 50
moving_average_fps = MovingAverage(moving_average_points)
moving_average_thread3_waiting_time = MovingAverage(moving_average_points)
moving_average_thread4_waiting_time = MovingAverage(moving_average_points)
moving_average_model_inference_time = MovingAverage(moving_average_points)
moving_average_img_preprocessing_time = MovingAverage(
moving_average_points)
image_count = 0
a = 0
b = 0
while True:
start_time = time.perf_counter()
# receive decompressed image from Thread 3
preprocessOutput = receiver.receive2()
thread3_waiting_time = time.perf_counter()
decompressedImage = preprocessOutput[0]
name = preprocessOutput[1]
# image preprocessing
model.load_image_cv2_backend(decompressedImage)
image_preprocessing_time = time.perf_counter()
# inference
class_ids, scores, boxes = model.inference()
model_inferenced_time = time.perf_counter()
# Transfer inference results to thread 4, wait if it is not finished with last image yet
receiver.putData((decompressedImage, name, image_count, model.labels, class_ids, boxes))
thread4_waiting_time = time.perf_counter()
# statistics
moving_average_fps.add(1 / (thread4_waiting_time - start_time))
moving_average_thread3_waiting_time.add(thread3_waiting_time - start_time)
moving_average_img_preprocessing_time.add(
image_preprocessing_time - thread3_waiting_time)
moving_average_model_inference_time.add(
model_inferenced_time - image_preprocessing_time)
moving_average_thread4_waiting_time.add(thread4_waiting_time - model_inferenced_time)
total_time = moving_average_thread3_waiting_time.get_moving_average() \
+ moving_average_model_inference_time.get_moving_average() \
+ moving_average_img_preprocessing_time.get_moving_average() \
+ moving_average_thread4_waiting_time.get_moving_average()
# count seconds it takes to process 400 images after a 800 frames warm-up time
if(image_count == 800):
a = time.perf_counter()
if(image_count == 1200):
a = time.perf_counter() - a
print(a)
# terminal prints
if image_count % 20 == 0:
print(" total: %4.1fms (%4.1ffps) "
" Waiting for Thread 3 (receiving, decoding, verifying) %4.1f (%4.1f%%) "
" preprocessing %4.1f (%4.1f%%) "
" model inference %4.1f (%4.1f%%) "
" Waiting for Thread 4 (postprocessing, signing, replying, displaying) %4.1f (%4.1f%%) "
% (
1000/moving_average_fps.get_moving_average(),
moving_average_fps.get_moving_average(),
moving_average_thread3_waiting_time.get_moving_average()*1000,
moving_average_thread3_waiting_time.get_moving_average() / total_time * 100,
moving_average_img_preprocessing_time.get_moving_average()*1000,
moving_average_img_preprocessing_time.get_moving_average() / total_time * 100,
moving_average_model_inference_time.get_moving_average()*1000,
moving_average_model_inference_time.get_moving_average() / total_time * 100,
moving_average_thread4_waiting_time.get_moving_average()*1000,
moving_average_thread4_waiting_time.get_moving_average() / total_time * 100), end='\r')
# counter
image_count += 1
def main(_argv):
# get paramters and contract details
vk = VerifyKey(OutsourceContract.public_key_outsourcer)
sk = SigningKey(Parameters.private_key_contractor)
model = OutsourceContract.model
framework = Parameters.framework
tiny = OutsourceContract.tiny
weights = Parameters.weights
count = Parameters.count
dont_show = Parameters.dont_show
info = Parameters.info
crop = Parameters.crop
input_size = Parameters.input_size
iou = Parameters.iou
score = Parameters.score
merkle_tree_interval = OutsourceContract.merkle_tree_interval
hostname = Parameters.ip_outsourcer # Use to receive from other computer
port = Parameters.port_outsourcer
sendingPort = Parameters.sendingPort
minimum_receive_rate_from_contractor = Parameters.minimum_receive_rate_from_contractor
contractHash = Helperfunctions.hashContract().encode('latin1')
# print(contractHash)
# configure video stream receiver
receiver = vss.VideoStreamSubscriber(hostname, port)
time.sleep(2)
preProcesser = Preprocesser(receiver, vk, merkle_tree_interval, minimum_receive_rate_from_contractor)
time.sleep(2)
print('RPi Stream -> Receiver Initialized')
# time.sleep(1.0)
# configure gpu usage
config = ConfigProto()
config.gpu_options.allow_growth = True
session = InteractiveSession(config=config)
# load model
if framework == 'tflite':
interpreter = tf.lite.Interpreter(model_path=weights)
else:
saved_model_loaded = tf.saved_model.load(
weights, tags=[tag_constants.SERVING])
# read in all class names from config
class_names = utils.read_class_names(cfg.YOLO.CLASSES)
# configure responder
responder = re.Responder(hostname, sendingPort)
# statistics info
moving_average_points = 50
# statistics
moving_average_fps = MovingAverage(moving_average_points)
moving_average_receive_time = MovingAverage(moving_average_points)
moving_average_decompress_time = MovingAverage(moving_average_points)
#moving_average_model_load_image_time = MovingAverage(moving_average_points)
moving_average_img_preprocessing_time = MovingAverage(
moving_average_points)
moving_average_model_inference_time = MovingAverage(moving_average_points)
moving_average_img_postprocessing_time = MovingAverage(
moving_average_points)
moving_average_reply_time = MovingAverage(moving_average_points)
moving_average_image_show_time = MovingAverage(moving_average_points)
moving_average_verify_image_sig_time = MovingAverage(moving_average_points)
moving_average_response_signing_time = MovingAverage(moving_average_points)
image_count = 0
a = 0
b = 0
if merkle_tree_interval > 0:
mt = MerkleTools()
mtOld = MerkleTools()
interval_count = 0
mtOld_leaf_indices = {}
mt_leaf_indices = {}
#rendundancy_counter = 0
#rendundancy_counter2 = 0
current_challenge = 1
merkle_root = ''
#stringsend = ''
last_challenge = 0
while True:
start_time = time.perf_counter()
data = preProcesser.receive()
images_data = data[0]
name = data[1]
received_time = time.perf_counter()
decompressed_time = time.perf_counter()
verify_time = time.perf_counter()
image_preprocessing_time = time.perf_counter()
# receive image
# region
# name[:-2] image signature, name
# inference
# region
if framework == 'tflite':
interpreter.allocate_tensors()
input_details = interpreter.get_input_details()
output_details = interpreter.get_output_details()
interpreter.set_tensor(input_details[0]['index'], images_data)
interpreter.invoke()
pred = [interpreter.get_tensor(
output_details[i]['index']) for i in range(len(output_details))]
if model == 'yolov3' and tiny == True:
boxes, pred_conf = filter_boxes(
pred[1], pred[0], score_threshold=0.25, input_shape=tf.constant([input_size, input_size]))
else:
boxes, pred_conf = filter_boxes(
pred[0], pred[1], score_threshold=0.25, input_shape=tf.constant([input_size, input_size]))
else:
infer = saved_model_loaded.signatures['serving_default']
batch_data = tf.constant(images_data)
pred_bbox = infer(batch_data)
for key, value in pred_bbox.items():
boxes = value[:, :, 0:4]
pred_conf = value[:, :, 4:]
# endregion
model_inferenced_time = time.perf_counter()
# image postprocessing
# region
h = time.perf_counter()
boxes, scores, classes, valid_detections = tf.image.combined_non_max_suppression(
boxes=tf.reshape(boxes, (tf.shape(boxes)[0], -1, 1, 4)),
scores=tf.reshape(
pred_conf, (tf.shape(pred_conf)[0], -1, tf.shape(pred_conf)[-1])),
max_output_size_per_class=50,
max_total_size=50,
iou_threshold=iou,
score_threshold=score
) # 1.2ms
# format bounding boxes from normalized ymin, xmin, ymax, xmax ---> xmin, ymin, xmax, ymax
original_h, original_w, _ = original_image.shape
bboxes = utils.format_boxes(
boxes.numpy()[0], original_h, original_w) # 1ms
# hold all detection data in one variable
pred_bbox = [bboxes, scores.numpy()[0], classes.numpy()[0],
valid_detections.numpy()[0]]
# by default allow all classes in .names file
allowed_classes = list(class_names.values())
# custom allowed classes (uncomment line below to allow detections for only people)
#allowed_classes = ['person']
# if crop flag is enabled, crop each detection and save it as new image
if crop:
crop_path = os.path.join(
os.getcwd(), 'detections', 'crop', image_name)
try:
os.mkdir(crop_path)
except FileExistsError:
pass
crop_objects(cv2.cvtColor(original_image, cv2.COLOR_BGR2RGB),
pred_bbox, crop_path, allowed_classes)
if count:
# count objects found
counted_classes = count_objects(
pred_bbox, by_class=False, allowed_classes=allowed_classes)
# loop through dict and print
for key, value in counted_classes.items():
print("Number of {}s: {}".format(key, value))
boxtext, image = utils.draw_bbox(
original_image, pred_bbox, info, counted_classes, allowed_classes=allowed_classes)
else:
boxtext, image = utils.draw_bbox(
original_image, pred_bbox, info, allowed_classes=allowed_classes) # 0.5ms
image = Image.fromarray(image.astype(np.uint8)) # 0.3ms
# endregion
if merkle_tree_interval == 0:
boxtext = 'Image' + str(name[-2]) + ':;' + boxtext
else:
boxtext = 'Image' + str(outsourcer_image_count) + ':;' + boxtext
image_postprocessing_time = time.perf_counter()
# sign message ->need to add image_count/interval_count (for merkle tree sig), contract hash to output and verificaton
if merkle_tree_interval == 0:
#sig = sk.sign_deterministic(boxtext.encode('latin1'))
sig = sk.sign(boxtext.encode('latin1') + contractHash).signature
#sig = list(sig)
sig = sig.decode('latin1')
# send reply
responder.respond(boxtext + ';--' + sig)
else:
# print(image_count)
mt.add_leaf(boxtext, True) #add leafs dynamiclly to merkle tree
mt_leaf_indices[outsourcer_image_count] = image_count % merkle_tree_interval #remember indices for challenge
#print(image_count % merkle_tree_interval)
response = boxtext
# time to send a new merkle root
if image_count > 1 and (image_count+1) % merkle_tree_interval == 0: #e.g. if inervall = 128 then all respones from 0-127 are added to the merkle tree
#print(image_count)
a = time.perf_counter()
#rendundancy_counter = 2
mt.make_tree()
merkle_root = mt.get_merkle_root()
sig = sk.sign(merkle_root.encode(
'latin1') + bytes(interval_count) + contractHash).signature # sign merkle root
# resond with merkle root
response += ';--' + str(merkle_root) + \
';--' + sig.decode('latin1')
interval_count += 1
mtOld = mt # save old merkle tree for challenge
#mtOld_leaf_indices.clear() # clear old indices
mtOld_leaf_indices.clear()
mtOld_leaf_indices = mt_leaf_indices.copy() #save old indices for challenge
#print(mtOld_leaf_indices)
mt_leaf_indices.clear() #clear for new indices
#mt_leaf_indices = {}
mt = MerkleTools() # construct new merkle tree for next interval
te = time.perf_counter()-a
# print('1', te, image_count)
else:
if interval_count > outsourcer_image_count : #if this is true then the outsourcer has not received the merkle root yet -> send again
sig = sk.sign(merkle_root.encode(
'latin1') + bytes(interval_count) + contractHash).signature # sign merkle root
response += ';--' + str(merkle_root) + \
';--' + sig.decode('latin1')
# print('2', image_count)
else: # in this case outsourcer has confirmed to have recieved the merkle root
if outsourcer_time_to_challenge and image_count - last_challenge > 3: #in this case outsourcer has sent a challenge to meet with the old merkle tree, give outsourcer 3 frames time to confirm challenge received before sending again
last_challenge = image_count
if outsourcer_random_number in mtOld_leaf_indices:
outsourcer_random_number_index = mtOld_leaf_indices[outsourcer_random_number] #if challenge can be found, send proof back
else:
outsourcer_random_number_index = 0 #if challenge index cannot be found return leaf 0
#print('proof index not found')
proofs = mtOld.get_proof(outsourcer_random_number_index)
stringsend = ''
for proof in proofs:
stringsend += ';--' # indicate start of proof
stringsend += proof.__str__() # send proof
stringsend += ';--'
# send leaf
stringsend += mtOld.get_leaf(outsourcer_random_number_index)
stringsend += ';--'
stringsend += mtOld.get_merkle_root() # send root
stringarr = []
stringarr = stringsend.split(';--')
leaf_node = stringarr[-2]
root_node = stringarr[-1]
proof_string = stringarr[0:-2]
sig = sk.sign(str(stringarr[1:]).encode('latin1') + bytes(interval_count-1) + contractHash).signature # sign proof and contract details
#print(str(stringarr).encode('latin1') + bytes(interval_count-1) + contractHash)
#print(stringarr)
# attach signature
response += ';--' + sig.decode('latin1')
response += stringsend # attach challenge response to response
# print('3', te, image_count)
responder.respond(response)
response_signing_time = time.perf_counter()
# print(response_signing_time- image_postprocessing_time)
replied_time = time.perf_counter()
# display image
if not dont_show:
# image.show()
image = cv2.cvtColor(np.array(image), cv2.COLOR_BGR2RGB)
cv2.imshow('raspberrypi', image)
if cv2.waitKey(1) == ord('q'):
responder.respond('abort12345:6')
sys.exit(
'Contract aborted: Contractor ended contract according to custom')
image_showed_time = time.perf_counter()
# statistics
moving_average_fps.add(1 / (image_showed_time - start_time))
moving_average_receive_time.add(received_time - start_time)
moving_average_decompress_time.add(decompressed_time - received_time)
moving_average_verify_image_sig_time.add(
verify_time - decompressed_time)
moving_average_img_preprocessing_time.add(
image_preprocessing_time - verify_time)
moving_average_model_inference_time.add(
model_inferenced_time - image_preprocessing_time)
moving_average_img_postprocessing_time.add(
image_postprocessing_time - model_inferenced_time)
moving_average_response_signing_time.add(
response_signing_time - image_postprocessing_time) # adjust for merkle root
moving_average_reply_time.add(replied_time - response_signing_time)
moving_average_image_show_time.add(image_showed_time - replied_time)
total_time = moving_average_receive_time.get_moving_average() \
+ moving_average_decompress_time.get_moving_average() \
+ moving_average_verify_image_sig_time.get_moving_average() \
+ moving_average_img_preprocessing_time.get_moving_average() \
+ moving_average_model_inference_time.get_moving_average() \
+ moving_average_img_postprocessing_time.get_moving_average() \
+ moving_average_response_signing_time.get_moving_average() \
+ moving_average_reply_time.get_moving_average() \
+ moving_average_image_show_time.get_moving_average()
if(image_count == 800):
a = time.perf_counter()
if(image_count == 1200):
a = time.perf_counter() - a
print(a)
# terminal prints
if image_count % 20 == 0:
print(" total: %4.1fms (%4.1ffps) "
" receiving %4.1f (%4.1f%%) "
" decoding %4.1f (%4.1f%%) "
" verifying %4.1f (%4.1f%%) "
" preprocessing %4.1f (%4.1f%%) "
" model inference %4.1f (%4.1f%%) "
" postprocessing %4.1f (%4.1f%%) "
" signing %4.1f (%4.1f%%) "
" replying %4.1f (%4.1f%%) "
" display %4.1f (%4.1f%%) "
% (
1000/moving_average_fps.get_moving_average(),
moving_average_fps.get_moving_average(),
moving_average_receive_time.get_moving_average()*1000,
moving_average_receive_time.get_moving_average() / total_time * 100,
moving_average_decompress_time.get_moving_average()*1000,
moving_average_decompress_time.get_moving_average() / total_time * 100,
moving_average_verify_image_sig_time.get_moving_average()*1000,
moving_average_verify_image_sig_time.get_moving_average() / total_time * 100,
moving_average_img_preprocessing_time.get_moving_average()*1000,
moving_average_img_preprocessing_time.get_moving_average() / total_time * 100,
moving_average_model_inference_time.get_moving_average()*1000,
moving_average_model_inference_time.get_moving_average() / total_time * 100,
moving_average_img_postprocessing_time.get_moving_average()*1000,
moving_average_img_postprocessing_time.get_moving_average() / total_time * 100,
moving_average_response_signing_time.get_moving_average()*1000,
moving_average_response_signing_time.get_moving_average() / total_time * 100,
moving_average_reply_time.get_moving_average() * 1000,
moving_average_reply_time.get_moving_average() / total_time * 100,
moving_average_image_show_time.get_moving_average()*1000,
moving_average_image_show_time.get_moving_average() / total_time * 100,), end='\r')
# counter
image_count += 1
def main():
# get paramters and contract details
# print(contractHash)
#preprocess_queue = queue.LifoQueue()
#inference_queue = queue.LifoQueue()
preprocess_queue = mp.Queue()
inference_queue = mp.Queue()
# postprocess_queue = Queue()
p1 = mp.Process(target=inference, args=(preprocess_queue, inference_queue))
p2 = mp.Process(target=preprocessing, args=(preprocess_queue, ))
#p1 = Process(target=dummy)
#p2 = Process(target=dummy)
# p3 = Process(target=Show_Image_mp, args=(Processed_frames, show, Final_frames))
p1.start()
p2.start()
# p3.start()
sk = SigningKey(Parameters.private_key_contractor)
contractHash = Helperfunctions.hashContract().encode('latin1')
dont_show = Parameters.dont_show
merkle_tree_interval = OutsourceContract.merkle_tree_interval
hostname = Parameters.ip_outsourcer # Use to receive from other computer
port = Parameters.port_outsourcer
sendingPort = Parameters.sendingPort
#import tensorflow as tf
# time.sleep(1.0)
# configure responder
responder = re.Responder(hostname, sendingPort)
# statistics info
moving_average_points = 50
# statistics
moving_average_fps = MovingAverage(moving_average_points)
moving_average_receive_time = MovingAverage(moving_average_points)
moving_average_decompress_time = MovingAverage(moving_average_points)
# moving_average_model_load_image_time = MovingAverage(moving_average_points)
moving_average_img_preprocessing_time = MovingAverage(
moving_average_points)
moving_average_model_inference_time = MovingAverage(moving_average_points)
moving_average_img_postprocessing_time = MovingAverage(
moving_average_points)
moving_average_reply_time = MovingAverage(moving_average_points)
moving_average_image_show_time = MovingAverage(moving_average_points)
moving_average_verify_image_sig_time = MovingAverage(moving_average_points)
moving_average_response_signing_time = MovingAverage(moving_average_points)
image_count = 0
a = 0
b = 0
if merkle_tree_interval > 0:
mt = MerkleTools()
mtOld = MerkleTools()
interval_count = 0
mtOld_leaf_indices = {}
mt_leaf_indices = {}
# rendundancy_counter = 0
# rendundancy_counter2 = 0
current_challenge = 1
merkle_root = ''
# stringsend = ''
last_challenge = 0
image_showed_time = time.perf_counter() # init
while True:
# start_time = time.perf_counter()
if not inference_queue.empty():
queueData = inference_queue.get()
while not inference_queue.empty():
queueData = inference_queue.get()
start_time = image_showed_time
# # boxes, scores, classes, valid_detections, name, original_image
#queueData=inference_queue.get()
#inference_queue.task_done()
# boxes=queueData[0]
# scores=queueData[1]
# classes=queueData[2]
# valid_detections=queueData[3]
# name = queueData[4]
# original_image = queueData[5]
boxtext = queueData[0]
image = queueData[1]
name = queueData[2]
if merkle_tree_interval > 0:
outsorucer_signature = name[:-5]
outsourcer_image_count = name[-5]
outsourcer_number_of_outputs_received = name[-4]
outsourcer_random_number = name[-3]
outsourcer_interval_count = name[-2]
outsourcer_time_to_challenge = bool(name[-1])
received_time = time.perf_counter()
image_preprocessing_time = time.perf_counter()
decompressed_time = time.perf_counter()
verify_time = time.perf_counter()
# inference
# region
# endregion
model_inferenced_time = time.perf_counter()
# image postprocessing
# region
h = time.perf_counter()
# endregion
if merkle_tree_interval == 0:
boxtext = 'Image' + str(name[-2]) + ':;' + boxtext
else:
boxtext = 'Image' + str(
outsourcer_image_count) + ':;' + boxtext
image_postprocessing_time = time.perf_counter()
# sign message ->need to add image_count/interval_count (for merkle tree sig), contract hash to output and verificaton
if merkle_tree_interval == 0:
# sig = sk.sign_deterministic(boxtext.encode('latin1'))
sig = sk.sign(boxtext.encode('latin1') +
contractHash).signature
# sig = list(sig)
sig = sig.decode('latin1')
# send reply
responder.respond(boxtext + ';--' + sig)
else:
# print(image_count)
# add leafs dynamiclly to merkle tree
mt.add_leaf(boxtext, True)
# remember indices for challenge
mt_leaf_indices[
outsourcer_image_count] = image_count % merkle_tree_interval
# print(image_count % merkle_tree_interval)
response = boxtext
# time to send a new merkle root
# e.g. if inervall = 128 then all respones from 0-127 are added to the merkle tree
if image_count > 1 and (image_count +
1) % merkle_tree_interval == 0:
# print(image_count)
a = time.perf_counter()
# rendundancy_counter = 2
mt.make_tree()
merkle_root = mt.get_merkle_root()
sig = sk.sign(
merkle_root.encode('latin1') + bytes(interval_count) +
contractHash).signature # sign merkle root
# resond with merkle root
response += ';--' + str(merkle_root) + \
';--' + sig.decode('latin1')
interval_count += 1
mtOld = mt # save old merkle tree for challenge
# mtOld_leaf_indices.clear() # clear old indices
mtOld_leaf_indices.clear()
mtOld_leaf_indices = mt_leaf_indices.copy(
) # save old indices for challenge
# print(mtOld_leaf_indices)
mt_leaf_indices.clear() # clear for new indices
# mt_leaf_indices = {}
mt = MerkleTools(
) # construct new merkle tree for next interval
te = time.perf_counter() - a
# print('1', te, image_count)
else:
# if this is true then the outsourcer has not received the merkle root yet -> send again
if interval_count > outsourcer_image_count:
sig = sk.sign(
merkle_root.encode('latin1') +
bytes(interval_count) +
contractHash).signature # sign merkle root
response += ';--' + str(merkle_root) + \
';--' + sig.decode('latin1')
# print('2', image_count)
else: # in this case outsourcer has confirmed to have recieved the merkle root
# in this case outsourcer has sent a challenge to meet with the old merkle tree, give outsourcer 3 frames time to confirm challenge received before sending again
if outsourcer_time_to_challenge and image_count - last_challenge > 3:
last_challenge = image_count
if outsourcer_random_number in mtOld_leaf_indices:
# if challenge can be found, send proof back
outsourcer_random_number_index = mtOld_leaf_indices[
outsourcer_random_number]
else:
# if challenge index cannot be found return leaf 0
outsourcer_random_number_index = 0
# print('proof index not found')
proofs = mtOld.get_proof(
outsourcer_random_number_index)
stringsend = ''
for proof in proofs:
stringsend += ';--' # indicate start of proof
stringsend += proof.__str__() # send proof
stringsend += ';--'
# send leaf
stringsend += mtOld.get_leaf(
outsourcer_random_number_index)
stringsend += ';--'
stringsend += mtOld.get_merkle_root() # send root
stringarr = []
stringarr = stringsend.split(';--')
leaf_node = stringarr[-2]
root_node = stringarr[-1]
proof_string = stringarr[0:-2]
# sign proof and contract details
sig = sk.sign(
str(stringarr[1:]).encode('latin1') +
bytes(interval_count - 1) +
contractHash).signature
# print(str(stringarr).encode('latin1') + bytes(interval_count-1) + contractHash)
# print(stringarr)
# attach signature
response += ';--' + sig.decode('latin1')
response += stringsend # attach challenge response to response
# print('3', te, image_count)
responder.respond(response)
response_signing_time = time.perf_counter()
# print(response_signing_time- image_postprocessing_time)
replied_time = time.perf_counter()
# display image
if not dont_show:
# image.show()
image = cv2.cvtColor(np.array(image), cv2.COLOR_BGR2RGB)
cv2.imshow('raspberrypi', image)
if cv2.waitKey(1) == ord('q'):
responder.respond('abort12345:6')
sys.exit(
'Contract aborted: Contractor ended contract according to custom'
)
image_showed_time = time.perf_counter()
# statistics
moving_average_fps.add(1 / (image_showed_time - start_time))
moving_average_receive_time.add(received_time - start_time)
moving_average_decompress_time.add(decompressed_time -
received_time)
moving_average_verify_image_sig_time.add(verify_time -
decompressed_time)
moving_average_img_preprocessing_time.add(
image_preprocessing_time - verify_time)
moving_average_model_inference_time.add(model_inferenced_time -
image_preprocessing_time)
moving_average_img_postprocessing_time.add(
image_postprocessing_time - model_inferenced_time)
moving_average_response_signing_time.add(
response_signing_time -
image_postprocessing_time) # adjust for merkle root
moving_average_reply_time.add(replied_time - response_signing_time)
moving_average_image_show_time.add(image_showed_time -
replied_time)
total_time=moving_average_receive_time.get_moving_average() \
+ moving_average_decompress_time.get_moving_average() \
+ moving_average_verify_image_sig_time.get_moving_average() \
+ moving_average_img_preprocessing_time.get_moving_average() \
+ moving_average_model_inference_time.get_moving_average() \
+ moving_average_img_postprocessing_time.get_moving_average() \
+ moving_average_response_signing_time.get_moving_average() \
+ moving_average_reply_time.get_moving_average() \
+ moving_average_image_show_time.get_moving_average()
if (image_count == 800):
a = time.perf_counter()
if (image_count == 1200):
a = time.perf_counter() - a
print(a)
# terminal prints
if image_count % 20 == 0:
print(
" total: %4.1fms (%4.1ffps) "
" receiving %4.1f (%4.1f%%) "
" decoding %4.1f (%4.1f%%) "
" verifying %4.1f (%4.1f%%) "
" preprocessing %4.1f (%4.1f%%) "
" model inference %4.1f (%4.1f%%) "
" postprocessing %4.1f (%4.1f%%) "
" signing %4.1f (%4.1f%%) "
" replying %4.1f (%4.1f%%) "
" display %4.1f (%4.1f%%) " % (
1000 / moving_average_fps.get_moving_average(),
moving_average_fps.get_moving_average(),
moving_average_receive_time.get_moving_average() *
1000,
moving_average_receive_time.get_moving_average() /
total_time * 100,
moving_average_decompress_time.get_moving_average() *
1000,
moving_average_decompress_time.get_moving_average() /
total_time * 100,
moving_average_verify_image_sig_time.
get_moving_average() * 1000,
moving_average_verify_image_sig_time.
get_moving_average() / total_time * 100,
moving_average_img_preprocessing_time.
get_moving_average() * 1000,
moving_average_img_preprocessing_time.
get_moving_average() / total_time * 100,
moving_average_model_inference_time.get_moving_average(
) * 1000,
moving_average_model_inference_time.get_moving_average(
) / total_time * 100,
moving_average_img_postprocessing_time.
get_moving_average() * 1000,
moving_average_img_postprocessing_time.
get_moving_average() / total_time * 100,
moving_average_response_signing_time.
get_moving_average() * 1000,
moving_average_response_signing_time.
get_moving_average() / total_time * 100,
moving_average_reply_time.get_moving_average() * 1000,
moving_average_reply_time.get_moving_average() /
total_time * 100,
moving_average_image_show_time.get_moving_average() *
1000,
moving_average_image_show_time.get_moving_average() /
total_time * 100,
),
end='\r')
# counter
image_count += 1
def main():
"""
main function interface
:return: nothing
"""
# statistics info
moving_average_points = 50
# initialize model
model = Model()
model.load_model('models_edgetpu/mobilenet_ssd_v2_coco_quant_postprocess_edgetpu.tflite')
model.load_labels('labels_edgetpu/coco_labels.txt')
model.set_confidence_level(0.3)
# initialize receiver
image_hub = imagezmq.ImageHub()
print('RPi Stream -> Receiver Initialized')
time.sleep(1.0)
# initialize render
render = Render()
print('RPi Stream -> Render Ready')
# statistics
moving_average_fps = MovingAverage(moving_average_points)
moving_average_receive_time = MovingAverage(moving_average_points)
moving_average_decompress_time = MovingAverage(moving_average_points)
moving_average_model_load_image_time = MovingAverage(moving_average_points)
moving_average_model_inference_time = MovingAverage(moving_average_points)
moving_average_reply_time = MovingAverage(moving_average_points)
moving_average_image_show_time = MovingAverage(moving_average_points)
image_count = 0
# streaming
print('RPi Stream -> Receiver Streaming')
while True:
start_time = time.monotonic()
# receive image
name, compressed = image_hub.recv_jpg()
received_time = time.monotonic()
# decompress image
image = cv2.imdecode(np.frombuffer(compressed, dtype='uint8'), -1)
decompressed_time = time.monotonic()
# load image into model (cv2 or pil backend)
model.load_image_cv2_backend(image)
model_loaded_image_time = time.monotonic()
# do model inference
class_ids, scores, boxes = model.inference()
model_inferenced_time = time.monotonic()
# send reply
image_hub.send_reply(b'OK')
replied_time = time.monotonic()
# render image
render.set_image(image)
render.render_detection(model.labels, class_ids, boxes, image.shape[1], image.shape[0], (45, 227, 227), 3)
render.render_fps(moving_average_fps.get_moving_average())
# show image
cv2.imshow(name, image)
image_showed_time = time.monotonic()
if cv2.waitKey(1) == ord('q'):
break
# statistics
instant_fps = 1 / (image_showed_time - start_time)
moving_average_fps.add(instant_fps)
receive_time = received_time - start_time
moving_average_receive_time.add(receive_time)
decompress_time = decompressed_time - received_time
moving_average_decompress_time.add(decompress_time)
model_load_image_time = model_loaded_image_time - decompressed_time
moving_average_model_load_image_time.add(model_load_image_time)
model_inference_time = model_inferenced_time - model_loaded_image_time
moving_average_model_inference_time.add(model_inference_time)
reply_time = replied_time - model_inferenced_time
moving_average_reply_time.add(reply_time)
image_show_time = image_showed_time - replied_time
moving_average_image_show_time.add(image_show_time)
total_time = moving_average_receive_time.get_moving_average() \
+ moving_average_decompress_time.get_moving_average() \
+ moving_average_model_load_image_time.get_moving_average() \
+ moving_average_model_inference_time.get_moving_average() \
+ moving_average_reply_time.get_moving_average() \
+ moving_average_image_show_time.get_moving_average()
# terminal prints
if image_count % 10 == 0:
print(" receiver's fps: %4.1f"
" receiver's time components: "
"receiving %4.1f%% "
"decompressing %4.1f%% "
"model load image %4.1f%% "
"model inference %4.1f%% "
"replying %4.1f%% "
"image show %4.1f%%"
% (moving_average_fps.get_moving_average(),
moving_average_receive_time.get_moving_average() / total_time * 100,
moving_average_decompress_time.get_moving_average() / total_time * 100,
moving_average_model_load_image_time.get_moving_average() / total_time * 100,
moving_average_model_inference_time.get_moving_average() / total_time * 100,
moving_average_reply_time.get_moving_average() / total_time * 100,
moving_average_image_show_time.get_moving_average() / total_time * 100), end='\r')
# counter
image_count += 1
if image_count == 10000000:
image_count = 0
def main(_argv):
vk = b'Y\xf8D\xe6o\xf9MZZh\x9e\xcb\xe0b\xb7h\xdb\\\xd7\x80\xd2S\xf5\x81\x92\xe8\x109r*U\xebT\x95\x0c\xf2\xf4(\x13%\x83\xb8\xfa;\xf04\xd3\xfb'
vk = VerifyingKey.from_string(vk)
config = ConfigProto()
config.gpu_options.allow_growth = True
session = InteractiveSession(config=config)
#STRIDES, ANCHORS, NUM_CLASS, XYSCALE = utils.load_config(FLAGS)
input_size = 416
iou = 0.45
score = 0.5
model = 'yolov4'
framework = ''
tiny = True
weights = './checkpoints/yolov4-tiny-416'
count = False
dont_show = False
info = True
crop = False
#images = FLAGS.images
#images = []
#images.append("C:/Users/Kitzbi/Documents/tensorflow yolo/yolov4-custom-functions/data/images/dog.jpg")
# load model
if framework == 'tflite':
interpreter = tf.lite.Interpreter(model_path=weights)
else:
saved_model_loaded = tf.saved_model.load(weights, tags=[tag_constants.SERVING])
# statistics info
moving_average_points = 50
# initialize receiver
image_hub = imagezmq.ImageHub()
print('RPi Stream -> Receiver Initialized')
time.sleep(1.0)
# initialize render
render = Render()
print('RPi Stream -> Render Ready')
# statistics
moving_average_fps = MovingAverage(moving_average_points)
moving_average_receive_time = MovingAverage(moving_average_points)
moving_average_decompress_time = MovingAverage(moving_average_points)
moving_average_model_load_image_time = MovingAverage(moving_average_points)
moving_average_model_inference_time = MovingAverage(moving_average_points)
moving_average_reply_time = MovingAverage(moving_average_points)
moving_average_image_show_time = MovingAverage(moving_average_points)
image_count = 0
# read in all class names from config
class_names = utils.read_class_names(cfg.YOLO.CLASSES)
# streaming
print('RPi Stream -> Receiver Streaming')
while True:
start_time = time.monotonic()
# receive image
name, compressed = image_hub.recv_jpg()
received_time = time.monotonic()
# decompress image
decompressedImage = cv2.imdecode(np.frombuffer(compressed, dtype='uint8'), -1)
decompressed_time = time.monotonic()
#frame = cv2.cvtColor(decompressedImage, cv2.COLOR_BGR2RGB)
#image = Image.fromarray(frame)
original_image = cv2.cvtColor(decompressedImage, cv2.COLOR_BGR2RGB)
image_data = cv2.resize(original_image, (input_size, input_size))
image_data = image_data / 255.
# get image name by using split method
#image_name = image_path.split('/')[-1]
#image_name = image_name.split('.')[0]
images_data = []
for i in range(1):
images_data.append(image_data)
images_data = np.asarray(images_data).astype(np.float32)
with concurrent.futures.ThreadPoolExecutor() as executor:
f1 = executor.submit(verify, vk, name, compressed)
f2 = executor.submit(inference, framework, images_data, model, tiny, saved_model_loaded, iou, score)
success = f1.result()
boxes, scores, classes, valid_detections = f2.result()
# format bounding boxes from normalized ymin, xmin, ymax, xmax ---> xmin, ymin, xmax, ymax
original_h, original_w, _ = original_image.shape
bboxes = utils.format_boxes(boxes.numpy()[0], original_h, original_w)
# hold all detection data in one variable
pred_bbox = [bboxes, scores.numpy()[0], classes.numpy()[0], valid_detections.numpy()[0]]
# by default allow all classes in .names file
allowed_classes = list(class_names.values())
# custom allowed classes (uncomment line below to allow detections for only people)
#allowed_classes = ['person']
# if crop flag is enabled, crop each detection and save it as new image
if crop:
crop_path = os.path.join(os.getcwd(), 'detections', 'crop', image_name)
try:
os.mkdir(crop_path)
except FileExistsError:
pass
crop_objects(cv2.cvtColor(original_image, cv2.COLOR_BGR2RGB), pred_bbox, crop_path, allowed_classes)
if count:
# count objects found
counted_classes = count_objects(pred_bbox, by_class = False, allowed_classes=allowed_classes)
# loop through dict and print
for key, value in counted_classes.items():
print("Number of {}s: {}".format(key, value))
boxtext, image = utils.draw_bbox(original_image, pred_bbox, image_count, info, counted_classes, allowed_classes=allowed_classes)
else:
boxtext, image = utils.draw_bbox(original_image, pred_bbox, image_count, info, allowed_classes=allowed_classes)
image = Image.fromarray(image.astype(np.uint8))
#print(boxtext)
# send reply
if(info):
image_hub.send_reply(boxtext)
else:
image_hub.send_reply('Ok')
#stra = str(pred_bbox).encode()
#image_hub.send_reply(stra)
#print(stra)
#image_hub.send_reply(str(pred_bbox).encode())
#image_hub.send_reply(bytearray(pred_bbox))
if not dont_show:
#image.show()
image = cv2.cvtColor(np.array(image), cv2.COLOR_BGR2RGB)
cv2.imshow('raspberrypi', image)
image_showed_time = time.monotonic()
if cv2.waitKey(1) == ord('q'):
break
# statistics
instant_fps = 1 / (image_showed_time - start_time)
moving_average_fps.add(instant_fps)
receive_time = received_time - start_time
moving_average_receive_time.add(receive_time)
decompress_time = decompressed_time - received_time
moving_average_decompress_time.add(decompress_time)
#model_load_image_time = model_loaded_image_time - decompressed_time
#moving_average_model_load_image_time.add(model_load_image_time)
#model_inference_time = model_inferenced_time - model_loaded_image_time
#moving_average_model_inference_time.add(model_inference_time)
#reply_time = replied_time - model_inferenced_time
#moving_average_reply_time.add(reply_time)
#image_show_time = image_showed_time - replied_time
#moving_average_image_show_time.add(image_show_time)
#total_time = moving_average_receive_time.get_moving_average() \
# + moving_average_decompress_time.get_moving_average() \
# + moving_average_model_load_image_time.get_moving_average() \
# + moving_average_model_inference_time.get_moving_average() \
# + moving_average_reply_time.get_moving_average() \
# + moving_average_image_show_time.get_moving_average()
#terminal prints
#if image_count % 10 == 0:
#print(moving_average_fps)
#print(decompress_time)
#print(" receiver's fps: %4.1f"
#" receiver's time components: "
#"receiving %4.1f%% "
#"decompressing %4.1f%% "
#"model load image %4.1f%% "
#"model inference %4.1f%% "
#"replying %4.1f%% "
#"image show %4.1f%%"
#% (moving_average_fps.get_moving_average()), end='\r')
#moving_average_fps.get_moving_average(),
#moving_average_receive_time.get_moving_average() / total_time * 100,
#moving_average_decompress_time.get_moving_average() / total_time * 100,
#moving_average_model_load_image_time.get_moving_average() / total_time * 100,
#moving_average_model_inference_time.get_moving_average() / total_time * 100,
#moving_average_reply_time.get_moving_average() / total_time * 100,
#moving_average_image_show_time.get_moving_average() / total_time * 100), end='\r')
#artifically added
# counter
image_count += 1
def main(_argv):
# get paramters and contract details
if Parameters.is_contractor == True: # checks if this machine is outsourcer or verifier
vk = VerifyKey(OutsourceContract.public_key_outsourcer)
contractHash = Helperfunctions.hashContract().encode('latin1')
model_to_use = OutsourceContract.model
tiny = OutsourceContract.tiny
merkle_tree_interval = OutsourceContract.merkle_tree_interval
display_name = 'Contractor'
else:
vk = VerifyKey(VerifierContract.public_key_outsourcer)
contractHash = Helperfunctions.hashVerifierContract().encode('latin1')
model_to_use = VerifierContract.model
tiny = VerifierContract.tiny
merkle_tree_interval = 0
display_name = 'Verifier'
sk = SigningKey(Parameters.private_key_self)
framework = Parameters.framework
weights = Parameters.weights
count = Parameters.count
dont_show = Parameters.dont_show
info = Parameters.info
crop = Parameters.crop
input_size = Parameters.input_size
iou = Parameters.iou
score = Parameters.score
hostname = Parameters.ip_outsourcer
port = Parameters.port_outsourcer
sendingPort = Parameters.sendingPort
minimum_receive_rate_from_contractor = Parameters.minimum_receive_rate_from_contractor
# configure video stream receiver
receiver = vss.VideoStreamSubscriber(hostname, port)
print('Receiver Initialized')
# configure gpu usage
config = ConfigProto()
config.gpu_options.allow_growth = True
session = InteractiveSession(config=config)
# load model
if framework == 'tflite':
interpreter = tf.lite.Interpreter(model_path=weights)
else:
saved_model_loaded = tf.saved_model.load(weights,
tags=[tag_constants.SERVING])
# read in all class names from config
class_names = utils.read_class_names(cfg.YOLO.CLASSES)
# configure responder
responder = re.Responder(hostname, sendingPort)
# configure and iniitialize statistic variables
moving_average_points = 50
moving_average_fps = MovingAverage(moving_average_points)
moving_average_receive_time = MovingAverage(moving_average_points)
moving_average_decompress_time = MovingAverage(moving_average_points)
moving_average_img_preprocessing_time = MovingAverage(
moving_average_points)
moving_average_model_inference_time = MovingAverage(moving_average_points)
moving_average_img_postprocessing_time = MovingAverage(
moving_average_points)
moving_average_reply_time = MovingAverage(moving_average_points)
moving_average_image_show_time = MovingAverage(moving_average_points)
moving_average_verify_image_sig_time = MovingAverage(moving_average_points)
moving_average_response_signing_time = MovingAverage(moving_average_points)
image_count = 0
acknowledged_frames = 0
a = 0
b = 0
# configure Merkle tree related variables if merkle trees are to be used
if merkle_tree_interval > 0:
mt = MerkleTools()
mtOld = MerkleTools()
interval_count = 0
mtOld_leaf_indices = {}
mt_leaf_indices = {}
current_challenge = 1
merkle_root = ''
last_challenge = 0
# start real time processing and verification
while True:
start_time = time.perf_counter()
# receive image
name, compressed = receiver.receive()
if name == 'abort':
sys.exit('Contract aborted by outsourcer according to custom')
received_time = time.perf_counter()
# decompress image
decompressedImage = cv2.imdecode(
np.frombuffer(compressed, dtype='uint8'), -1)
decompressed_time = time.perf_counter()
# verify image (verify if signature matches image, contract hash and image count, and number of outptuts received)
if merkle_tree_interval == 0:
try:
vk.verify(
bytes(compressed) + contractHash + bytes(name[-2]) +
bytes(name[-1]), bytes(name[:-2]))
except:
sys.exit(
'Contract aborted: Outsourcer signature does not match input. Possible Consquences for Outsourcer: Blacklist, Bad Review'
)
if name[-1] < (image_count -
2) * minimum_receive_rate_from_contractor or name[
-1] < acknowledged_frames:
sys.exit(
'Contract aborted: Outsourcer did not acknowledge enough ouputs. Possible Consquences for Outsourcer: Blacklist, Bad Review'
)
acknowledged_frames = name[-1]
else:
# verify if signature matches image, contract hash, and image count, and number of intervals, and random number
try:
vk.verify(
bytes(compressed) + contractHash + bytes(name[-5]) +
bytes(name[-4]) + bytes(name[-3]) + bytes(name[-2]) +
bytes(name[-1]), bytes(name[:-5]))
except:
sys.exit(
'Contract aborted: Outsourcer signature does not match input. Possible Consquences for Outsourcer: Blacklist, Bad Review'
)
if name[-4] < (image_count -
2) * minimum_receive_rate_from_contractor or name[
-4] < acknowledged_frames:
sys.exit(
'Contract aborted: Outsourcer did not acknowledge enough ouputs. Possible Consquences for Outsourcer: Blacklist, Bad Review'
)
acknowledged_frames = name[-4]
outsorucer_signature = name[:-5]
outsourcer_image_count = name[-5]
outsourcer_number_of_outputs_received = name[-4]
outsourcer_random_number = name[-3]
outsourcer_interval_count = name[-2]
outsourcer_time_to_challenge = bool(name[-1])
verify_time = time.perf_counter()
# image preprocessing
original_image = cv2.cvtColor(decompressedImage, cv2.COLOR_BGR2RGB)
image_data = cv2.resize(original_image,
(input_size, input_size)) # 0.4ms
image_data = image_data / 255. # 2.53ms
images_data = []
for i in range(1):
images_data.append(image_data)
images_data = np.asarray(images_data).astype(np.float32) # 3.15ms
image_preprocessing_time = time.perf_counter()
# inference
if framework == 'tflite':
interpreter.allocate_tensors()
input_details = interpreter.get_input_details()
output_details = interpreter.get_output_details()
interpreter.set_tensor(input_details[0]['index'], images_data)
interpreter.invoke()
pred = [
interpreter.get_tensor(output_details[i]['index'])
for i in range(len(output_details))
]
if model_to_use == 'yolov3' and tiny == True:
boxes, pred_conf = filter_boxes(pred[1],
pred[0],
score_threshold=0.25,
input_shape=tf.constant(
[input_size, input_size]))
else:
boxes, pred_conf = filter_boxes(pred[0],
pred[1],
score_threshold=0.25,
input_shape=tf.constant(
[input_size, input_size]))
else:
infer = saved_model_loaded.signatures['serving_default']
batch_data = tf.constant(images_data)
pred_bbox = infer(batch_data)
for key, value in pred_bbox.items():
boxes = value[:, :, 0:4]
pred_conf = value[:, :, 4:]
model_inferenced_time = time.perf_counter()
# image postprocessing
# region
h = time.perf_counter()
boxes, scores, classes, valid_detections = tf.image.combined_non_max_suppression(
boxes=tf.reshape(boxes, (tf.shape(boxes)[0], -1, 1, 4)),
scores=tf.reshape(
pred_conf,
(tf.shape(pred_conf)[0], -1, tf.shape(pred_conf)[-1])),
max_output_size_per_class=50,
max_total_size=50,
iou_threshold=iou,
score_threshold=score) # 1.2ms
# format bounding boxes from normalized ymin, xmin, ymax, xmax ---> xmin, ymin, xmax, ymax
original_h, original_w, _ = original_image.shape
bboxes = utils.format_boxes(boxes.numpy()[0], original_h,
original_w) # 1ms
# hold all detection data in one variable
pred_bbox = [
bboxes,
scores.numpy()[0],
classes.numpy()[0],
valid_detections.numpy()[0]
]
# by default allow all classes in .names file
allowed_classes = list(class_names.values())
# custom allowed classes (uncomment line below to allow detections for only people)
#allowed_classes = ['person']
# if crop flag is enabled, crop each detection and save it as new image
if crop:
crop_path = os.path.join(os.getcwd(), 'detections', 'crop',
image_name)
try:
os.mkdir(crop_path)
except FileExistsError:
pass
crop_objects(cv2.cvtColor(original_image, cv2.COLOR_BGR2RGB),
pred_bbox, crop_path, allowed_classes)
if count:
# count objects found
counted_classes = count_objects(pred_bbox,
by_class=False,
allowed_classes=allowed_classes)
# loop through dict and print
for key, value in counted_classes.items():
print("Number of {}s: {}".format(key, value))
boxtext, image = utils.draw_bbox(original_image,
pred_bbox,
info,
counted_classes,
allowed_classes=allowed_classes)
else:
boxtext, image = utils.draw_bbox(
original_image,
pred_bbox,
info,
allowed_classes=allowed_classes) # 0.5ms
image = Image.fromarray(image.astype(np.uint8)) # 0.3ms
# endregion
# prepare response
if merkle_tree_interval == 0:
boxtext = 'Image' + str(name[-2]) + ':;' + boxtext
else:
boxtext = 'Image' + str(outsourcer_image_count) + ':;' + boxtext
#boxtext += "Object found: Person" #dishonest
image_postprocessing_time = time.perf_counter()
if merkle_tree_interval == 0:
sig = sk.sign(boxtext.encode('latin1') + contractHash).signature
sig = sig.decode('latin1')
# send reply
responder.respond(boxtext + ';--' + sig)
else:
mt.add_leaf(boxtext, True) # add leafs dynamiclly to merkle tree
# remember indices for challenge
mt_leaf_indices[
outsourcer_image_count] = image_count % merkle_tree_interval
response = boxtext
# if statement is true then it's time to send a new merkle root
# e.g. if inervall = 128 then all respones from 0-127 are added to the merkle tree
if image_count > 1 and (image_count +
1) % merkle_tree_interval == 0:
mt.make_tree()
merkle_root = mt.get_merkle_root()
#merkle_root = mt.get_leaf(0) #dishonest
sig = sk.sign(
merkle_root.encode('latin1') + bytes(interval_count) +
contractHash).signature # sign merkle root
# resond with merkle root
response += ';--' + str(merkle_root) + \
';--' + sig.decode('latin1')
interval_count += 1
mtOld = mt # save old merkle tree for challenge
mtOld_leaf_indices.clear()
mtOld_leaf_indices = mt_leaf_indices.copy(
) # save old indices for challenge
mt_leaf_indices.clear() # clear for new indices
mt = MerkleTools(
) # construct new merkle tree for next interval
else:
# if statement is true then it's time to resend the merkle root because outsourcer has not received it yet
# if this is true then the outsourcer has not received the merkle root yet -> send again
if interval_count > outsourcer_image_count:
sig = sk.sign(
merkle_root.encode('latin1') + bytes(interval_count) +
contractHash).signature # sign merkle root
response += ';--' + str(merkle_root) + \
';--' + sig.decode('latin1')
else: # in this case outsourcer has confirmed to have recieved the merkle root
# if statement is true then it's time to resond to a challenge from the outsourcer
# in this case outsourcer has sent a challenge to meet with the old merkle tree, give outsourcer 3 frames time to confirm challenge received before sending again
if outsourcer_time_to_challenge and image_count - last_challenge > 3:
last_challenge = image_count
if outsourcer_random_number in mtOld_leaf_indices:
# if challenge can be found, send proof back
outsourcer_random_number_index = mtOld_leaf_indices[
outsourcer_random_number]
else:
# if challenge index cannot be found return leaf 0
outsourcer_random_number_index = 0
proofs = mtOld.get_proof(
outsourcer_random_number_index)
stringsend = ''
for proof in proofs:
stringsend += ';--' # indicate start of proof
stringsend += proof.__str__() # send proof
stringsend += ';--'
# send leaf
stringsend += mtOld.get_leaf(
outsourcer_random_number_index)
stringsend += ';--'
stringsend += mtOld.get_merkle_root() # send root
stringarr = []
stringarr = stringsend.split(';--')
leaf_node = stringarr[-2]
root_node = stringarr[-1]
proof_string = stringarr[0:-2]
sig = sk.sign(
str(stringarr[1:]).encode('latin1') +
bytes(interval_count - 1) + contractHash
).signature # sign proof and contract details
# attach signature
response += ';--' + sig.decode('latin1')
response += stringsend # attach challenge response to response
responder.respond(response)
response_signing_time = time.perf_counter()
replied_time = time.perf_counter()
# display image
if not dont_show:
image = cv2.cvtColor(np.array(image), cv2.COLOR_BGR2RGB)
cv2.imshow(display_name, image)
if cv2.waitKey(1) == ord('q'):
responder.respond('abort12345:6')
sys.exit(
'Contract aborted: Ended contract according to custom')
image_showed_time = time.perf_counter()
# statistics
moving_average_fps.add(1 / (image_showed_time - start_time))
moving_average_receive_time.add(received_time - start_time)
moving_average_decompress_time.add(decompressed_time - received_time)
moving_average_verify_image_sig_time.add(verify_time -
decompressed_time)
moving_average_img_preprocessing_time.add(image_preprocessing_time -
verify_time)
moving_average_model_inference_time.add(model_inferenced_time -
image_preprocessing_time)
moving_average_img_postprocessing_time.add(image_postprocessing_time -
model_inferenced_time)
moving_average_response_signing_time.add(
response_signing_time -
image_postprocessing_time) # adjust for merkle root
moving_average_reply_time.add(replied_time - response_signing_time)
moving_average_image_show_time.add(image_showed_time - replied_time)
total_time = moving_average_receive_time.get_moving_average() \
+ moving_average_decompress_time.get_moving_average() \
+ moving_average_verify_image_sig_time.get_moving_average() \
+ moving_average_img_preprocessing_time.get_moving_average() \
+ moving_average_model_inference_time.get_moving_average() \
+ moving_average_img_postprocessing_time.get_moving_average() \
+ moving_average_response_signing_time.get_moving_average() \
+ moving_average_reply_time.get_moving_average() \
+ moving_average_image_show_time.get_moving_average()
# count seconds it takes to process 400 images after a 800 frames warm-up time
if (image_count == 800):
a = time.perf_counter()
if (image_count == 1200):
a = time.perf_counter() - a
print(a)
# terminal prints
if image_count % 20 == 0:
print(
" total: %4.1fms (%4.1ffps) "
" receiving %4.1f (%4.1f%%) "
" decoding %4.1f (%4.1f%%) "
" verifying %4.1f (%4.1f%%) "
" preprocessing %4.1f (%4.1f%%) "
" model inference %4.1f (%4.1f%%) "
" postprocessing %4.1f (%4.1f%%) "
" signing %4.1f (%4.1f%%) "
" replying %4.1f (%4.1f%%) "
" display %4.1f (%4.1f%%) " % (
1000 / moving_average_fps.get_moving_average(),
moving_average_fps.get_moving_average(),
moving_average_receive_time.get_moving_average() * 1000,
moving_average_receive_time.get_moving_average() /
total_time * 100,
moving_average_decompress_time.get_moving_average() * 1000,
moving_average_decompress_time.get_moving_average() /
total_time * 100,
moving_average_verify_image_sig_time.get_moving_average() *
1000,
moving_average_verify_image_sig_time.get_moving_average() /
total_time * 100,
moving_average_img_preprocessing_time.get_moving_average()
* 1000,
moving_average_img_preprocessing_time.get_moving_average()
/ total_time * 100,
moving_average_model_inference_time.get_moving_average() *
1000,
moving_average_model_inference_time.get_moving_average() /
total_time * 100,
moving_average_img_postprocessing_time.get_moving_average(
) * 1000,
moving_average_img_postprocessing_time.get_moving_average(
) / total_time * 100,
moving_average_response_signing_time.get_moving_average() *
1000,
moving_average_response_signing_time.get_moving_average() /
total_time * 100,
moving_average_reply_time.get_moving_average() * 1000,
moving_average_reply_time.get_moving_average() /
total_time * 100,
moving_average_image_show_time.get_moving_average() * 1000,
moving_average_image_show_time.get_moving_average() /
total_time * 100,
),
end='\r')
# counter
image_count += 1
def main():
"""
main function interface
:return: nothing
"""
# video info
width = 640
height = 368
quality = 65
# host computer info
target_ip = '192.168.7.33'
target_port = '5555'
# statistics info
moving_average_points = 50
# initialize sender
image_sender = Sender(target_ip, target_port)
image_sender.set_quality(quality)
print('RPi Stream -> Sender Initialized')
# initialize RPi camera
rpi_cam = RPiCamera(width, height)
rpi_cam.start()
print('RPi Stream -> Camera Started')
time.sleep(1.0)
# statistics
moving_average_fps = MovingAverage(moving_average_points)
moving_average_camera_time = MovingAverage(moving_average_points)
moving_average_compress_time = MovingAverage(moving_average_points)
moving_average_send_time = MovingAverage(moving_average_points)
image_count = 0
# streaming
print('RPi Stream -> Start Streaming')
while True:
start_time = time.monotonic()
# capture image
image = rpi_cam.get_image()
camera_time = time.monotonic() - start_time
moving_average_camera_time.add(camera_time)
# send compressed image (compress + send)
compress_time, send_time = image_sender.send_image_compressed(
rpi_cam.name, image)
moving_average_compress_time.add(compress_time)
moving_average_send_time.add(send_time)
# statistics
total_time = moving_average_camera_time.get_moving_average() \
+ moving_average_compress_time.get_moving_average() \
+ moving_average_send_time.get_moving_average()
instant_fps = 1 / (time.monotonic() - start_time)
moving_average_fps.add(instant_fps)
# terminal prints
if image_count % 10 == 0:
print(
" sender's fps: %5.1f sender's time components: camera %4.1f%% compressing %4.1f%% sending %4.1f%%"
%
(moving_average_fps.get_moving_average(),
moving_average_camera_time.get_moving_average() / total_time *
100, moving_average_compress_time.get_moving_average() /
total_time * 100,
moving_average_send_time.get_moving_average() / total_time *
100),
end='\r')
# counter
image_count += 1
if image_count == 10000000:
image_count = 0
def main():
"""
main function interface
:return: nothing
"""
# statistics info
moving_average_points = 50
# initialize receiver
image_hub = imagezmq.ImageHub()
print('RPi Stream -> Receiver Initialized')
time.sleep(1.0)
# statistics
moving_average_fps = MovingAverage(moving_average_points)
moving_average_receive_time = MovingAverage(moving_average_points)
moving_average_decompress_time = MovingAverage(moving_average_points)
moving_average_reply_time = MovingAverage(moving_average_points)
moving_average_image_show_time = MovingAverage(moving_average_points)
image_count = 0
# streaming
print('RPi Stream -> Receiver Streaming')
while True:
start_time = time.monotonic()
# receive image
name, compressed = image_hub.recv_jpg()
received_time = time.monotonic()
# decompress image
image = cv2.imdecode(np.frombuffer(compressed, dtype='uint8'), -1)
decompressed_time = time.monotonic()
# send reply
image_hub.send_reply(b'OK')
replied_time = time.monotonic()
# show image
cv2.imshow(name, image)
image_showed_time = time.monotonic()
if cv2.waitKey(1) == ord('q'):
break
# statistics
instant_fps = 1 / (image_showed_time - start_time)
moving_average_fps.add(instant_fps)
receive_time = received_time - start_time
moving_average_receive_time.add(receive_time)
decompress_time = decompressed_time - received_time
moving_average_decompress_time.add(decompress_time)
reply_time = replied_time - decompressed_time
moving_average_reply_time.add(reply_time)
image_show_time = image_showed_time - replied_time
moving_average_image_show_time.add(image_show_time)
total_time = moving_average_receive_time.get_moving_average() \
+ moving_average_decompress_time.get_moving_average() \
+ moving_average_reply_time.get_moving_average() \
+ moving_average_image_show_time.get_moving_average()
# terminal prints
if image_count % 10 == 0:
print(" receiver's fps: %5.1f"
" receiver's time components: receiving %4.1f%% decompressing %4.1f%% replying %4.1f%% image show "
"%4.1f%% "
% (moving_average_fps.get_moving_average(),
moving_average_receive_time.get_moving_average() / total_time * 100,
moving_average_decompress_time.get_moving_average() / total_time * 100,
moving_average_reply_time.get_moving_average() / total_time * 100,
moving_average_image_show_time.get_moving_average() / total_time * 100), end='\r')
# counter
image_count += 1
if image_count == 10000000:
image_count = 0
def main(_argv):
# get paramters and contract details
if Parameters.is_contractor == True:
vk_Bytes = OutsourceContract.public_key_outsourcer
merkle_tree_interval = OutsourceContract.merkle_tree_interval
contractHash = Helperfunctions.hashContract().encode('latin1')
model_to_use = OutsourceContract.model
tiny = OutsourceContract.tiny
else:
vk_Bytes = VerifierContract.public_key_outsourcer
contractHash = Helperfunctions.hashVerifierContract().encode('latin1')
model_to_use = VerifierContract.model
tiny = VerifierContract.tiny
merkle_tree_interval = 0
port = Parameters.port_outsourcer
sendingPort = Parameters.sendingPort
hostname = Parameters.ip_outsourcer # Use to receive from other computer
minimum_receive_rate_from_contractor = Parameters.minimum_receive_rate_from_contractor
dont_show = Parameters.dont_show
framework = Parameters.framework
weights = Parameters.weights
count = Parameters.count
info = Parameters.info
crop = Parameters.crop
iou = Parameters.iou
score = Parameters.score
input_size = Parameters.input_size
# configure thread Handler to handle T2 (receiving), T3 (decompressing, verifiying, preprocessing), and T4 (postprocessing, signing , sending, displaying)
receiver = vss3.ThreadHandler(hostname, port, merkle_tree_interval,
contractHash,
minimum_receive_rate_from_contractor,
vk_Bytes, input_size, sendingPort)
print('Receiver Initialized')
# configure gpu usage
config = ConfigProto()
config.gpu_options.allow_growth = True
session = InteractiveSession(config=config)
# load model
if framework == 'tflite':
interpreter = tf.lite.Interpreter(model_path=weights)
else:
saved_model_loaded = tf.saved_model.load(weights,
tags=[tag_constants.SERVING])
# read in all class names from config
class_names = utils.read_class_names(cfg.YOLO.CLASSES)
# configure and iniitialize statistic variables
moving_average_points = 50
# statistics
moving_average_fps = MovingAverage(moving_average_points)
moving_average_thread3_waiting_time = MovingAverage(moving_average_points)
moving_average_thread4_waiting_time = MovingAverage(moving_average_points)
moving_average_model_inference_time = MovingAverage(moving_average_points)
moving_average_img_postprocessing_time = MovingAverage(
moving_average_points)
image_count = 0
a = 0
b = 0
while True:
start_time = time.perf_counter()
# receive preprocessed image from Thread 3
preprocessOutput = receiver.receive2()
thread3_waiting_time = time.perf_counter()
images_data = preprocessOutput[0]
name = preprocessOutput[1]
original_image = preprocessOutput[2]
# inference
if framework == 'tflite':
interpreter.allocate_tensors()
input_details = interpreter.get_input_details()
output_details = interpreter.get_output_details()
interpreter.set_tensor(input_details[0]['index'], images_data)
interpreter.invoke()
pred = [
interpreter.get_tensor(output_details[i]['index'])
for i in range(len(output_details))
]
if model_to_use == 'yolov3' and tiny == True:
boxes, pred_conf = filter_boxes(pred[1],
pred[0],
score_threshold=0.25,
input_shape=tf.constant(
[input_size, input_size]))
else:
boxes, pred_conf = filter_boxes(pred[0],
pred[1],
score_threshold=0.25,
input_shape=tf.constant(
[input_size, input_size]))
else:
infer = saved_model_loaded.signatures['serving_default']
batch_data = tf.constant(images_data)
pred_bbox = infer(batch_data)
for key, value in pred_bbox.items():
boxes = value[:, :, 0:4]
pred_conf = value[:, :, 4:]
model_inferenced_time = time.perf_counter()
# image postprocessing
boxes, scores, classes, valid_detections = tf.image.combined_non_max_suppression(
boxes=tf.reshape(boxes, (tf.shape(boxes)[0], -1, 1, 4)),
scores=tf.reshape(
pred_conf,
(tf.shape(pred_conf)[0], -1, tf.shape(pred_conf)[-1])),
max_output_size_per_class=50,
max_total_size=50,
iou_threshold=iou,
score_threshold=score) # 1.2ms
# format bounding boxes from normalized ymin, xmin, ymax, xmax ---> xmin, ymin, xmax, ymax
original_h, original_w, _ = original_image.shape
bboxes = utils.format_boxes(boxes.numpy()[0], original_h,
original_w) # 1ms
# hold all detection data in one variable
pred_bbox = [
bboxes,
scores.numpy()[0],
classes.numpy()[0],
valid_detections.numpy()[0]
]
# by default allow all classes in .names file
allowed_classes = list(class_names.values())
# custom allowed classes (uncomment line below to allow detections for only people)
#allowed_classes = ['person']
# if crop flag is enabled, crop each detection and save it as new image
if crop:
crop_path = os.path.join(os.getcwd(), 'detections', 'crop',
image_name)
try:
os.mkdir(crop_path)
except FileExistsError:
pass
crop_objects(cv2.cvtColor(original_image, cv2.COLOR_BGR2RGB),
pred_bbox, crop_path, allowed_classes)
if count:
# count objects found
counted_classes = count_objects(pred_bbox,
by_class=False,
allowed_classes=allowed_classes)
# loop through dict and print
for key, value in counted_classes.items():
print("Number of {}s: {}".format(key, value))
boxtext, image = utils.draw_bbox(original_image,
pred_bbox,
info,
counted_classes,
allowed_classes=allowed_classes)
else:
boxtext, image = utils.draw_bbox(
original_image,
pred_bbox,
info,
allowed_classes=allowed_classes) # 0.5ms
image = Image.fromarray(image.astype(np.uint8)) # 0.3ms
# endregion
if merkle_tree_interval == 0:
boxtext = 'Image' + str(name[-2]) + ':;' + boxtext
else:
boxtext = 'Image' + str(name[-5]) + ':;' + boxtext
image_postprocessing_time = time.perf_counter()
# send postprocess result to Thread 4 for sending, signing and displaying. Wait if Thread 4 is still busy with processing last frame
receiver.putData((boxtext, image, name, image_count))
thread4_waiting_time = time.perf_counter()
# statistics
moving_average_fps.add(1 / (thread4_waiting_time - start_time))
moving_average_thread3_waiting_time.add(thread3_waiting_time -
start_time)
moving_average_model_inference_time.add(model_inferenced_time -
thread3_waiting_time)
moving_average_img_postprocessing_time.add(image_postprocessing_time -
model_inferenced_time)
moving_average_thread4_waiting_time.add(thread4_waiting_time -
image_postprocessing_time)
total_time = moving_average_thread3_waiting_time.get_moving_average() \
+ moving_average_model_inference_time.get_moving_average() \
+ moving_average_img_postprocessing_time.get_moving_average() \
+ moving_average_thread4_waiting_time.get_moving_average()
if (image_count == 800):
a = time.perf_counter()
if (image_count == 1200):
a = time.perf_counter() - a
print(a)
# terminal prints
if image_count % 20 == 0:
print(
" total: %4.1fms (%4.1ffps) "
" Waiting for Thread 3 (receiving, decoding, verifying, preprocessing) %4.1f (%4.1f%%) "
" model inference %4.1f (%4.1f%%) "
" postprocessing %4.1f (%4.1f%%) "
" Waiting for Thread 4 (signing, replying, displaying) %4.1f (%4.1f%%) "
%
(1000 / moving_average_fps.get_moving_average(),
moving_average_fps.get_moving_average(),
moving_average_thread3_waiting_time.get_moving_average() *
1000,
moving_average_thread3_waiting_time.get_moving_average() /
total_time * 100,
moving_average_model_inference_time.get_moving_average() *
1000,
moving_average_model_inference_time.get_moving_average() /
total_time * 100,
moving_average_img_postprocessing_time.get_moving_average() *
1000,
moving_average_img_postprocessing_time.get_moving_average() /
total_time * 100,
moving_average_thread4_waiting_time.get_moving_average() *
1000,
moving_average_thread4_waiting_time.get_moving_average() /
total_time * 100),
end='\r')
# counter
image_count += 1
def main(_argv):
# get paramters and contract details
if Parameters.is_contractor == True: # checks if this machine is outsourcer or verifier
vk = VerifyKey(OutsourceContract.public_key_outsourcer)
contractHash = Helperfunctions.hashContract().encode('latin1')
model_to_use = OutsourceContract.model
tiny = OutsourceContract.tiny
merkle_tree_interval = OutsourceContract.merkle_tree_interval
display_name = 'Contractor'
else:
vk = VerifyKey(VerifierContract.public_key_outsourcer)
contractHash = Helperfunctions.hashVerifierContract().encode('latin1')
model_to_use = VerifierContract.model
tiny = VerifierContract.tiny
merkle_tree_interval = 0
display_name = 'Verifier'
sk = SigningKey(Parameters.private_key_self)
framework = Parameters.framework
weights = Parameters.weights
count = Parameters.count
dont_show = Parameters.dont_show
info = Parameters.info
crop = Parameters.crop
input_size = Parameters.input_size
iou = Parameters.iou
score = Parameters.score
hostname = Parameters.ip_outsourcer # Use to receive from other computer
port = Parameters.port_outsourcer
sendingPort = Parameters.sendingPort
minimum_receive_rate_from_contractor = Parameters.minimum_receive_rate_from_contractor
edgeTPU_model_path = Parameters.edgeTPU_model_path
edgeTPU_label_path = Parameters.edgeTPU_label_Path
edgeTPU_confidence_level = Parameters.EdgeTPU_confidence_level
# configure video stream receiver
receiver = vss.VideoStreamSubscriber(hostname, port)
print('Receiver Initialized')
# configure model
model = Model()
model.load_model(edgeTPU_model_path)
model.load_labels(edgeTPU_label_path)
model.set_confidence_level(edgeTPU_confidence_level)
# configure responder
responder = re.Responder(hostname, sendingPort)
render = Render()
# configure and iniitialize statistic variables
moving_average_points = 50
moving_average_fps = MovingAverage(moving_average_points)
moving_average_receive_time = MovingAverage(moving_average_points)
moving_average_decompress_time = MovingAverage(moving_average_points)
moving_average_img_preprocessing_time = MovingAverage(
moving_average_points)
moving_average_model_inference_time = MovingAverage(moving_average_points)
moving_average_img_postprocessing_time = MovingAverage(
moving_average_points)
moving_average_reply_time = MovingAverage(moving_average_points)
moving_average_image_show_time = MovingAverage(moving_average_points)
moving_average_verify_image_sig_time = MovingAverage(moving_average_points)
moving_average_response_signing_time = MovingAverage(moving_average_points)
image_count = 0
acknowledged_frames = 0