def test_inference_state(self):
with InferenceEngine() as engine:
state = engine.get_inference_state()
self.assertFalse(state.loaded_models)
self.assertFalse(state.processing_models)
model_name = engine.load_model(fd.model())
state = engine.get_inference_state()
self.assertEqual(set(state.loaded_models), {model_name})
self.assertFalse(state.processing_models)
engine.reset()
state = engine.get_inference_state()
self.assertFalse(state.loaded_models)
self.assertFalse(state.processing_models)
model_name = engine.load_model(fd.model())
with PiCamera(sensor_mode=4):
engine.start_camera_inference(model_name)
state = engine.get_inference_state()
self.assertEqual(set(state.loaded_models), {model_name})
self.assertEqual(set(state.processing_models), {model_name})
engine.reset()
state = engine.get_inference_state()
self.assertFalse(state.loaded_models)
self.assertFalse(state.processing_models)
def test_inference_state(self):
with InferenceEngine() as engine:
state = engine.get_inference_state()
self.assertFalse(state.loaded_models)
self.assertFalse(state.processing_models)
model_name = engine.load_model(fd.model())
state = engine.get_inference_state()
self.assertEqual(set(state.loaded_models), {model_name})
self.assertFalse(state.processing_models)
engine.reset()
state = engine.get_inference_state()
self.assertFalse(state.loaded_models)
self.assertFalse(state.processing_models)
model_name = engine.load_model(fd.model())
with PiCamera(sensor_mode=4):
engine.start_camera_inference(model_name)
state = engine.get_inference_state()
self.assertEqual(set(state.loaded_models), {model_name})
self.assertEqual(set(state.processing_models), {model_name})
engine.reset()
state = engine.get_inference_state()
self.assertFalse(state.loaded_models)
self.assertFalse(state.processing_models)
def detect(num_frames):
"""Face detection camera inference example"""
# Forced sensor mode, 1640x1232, full FoV. See:
# https://picamera.readthedocs.io/en/release-1.13/fov.html#sensor-modes
# This is the resolution inference run on.
with PiCamera(sensor_mode=4, resolution=(1640, 1232),
framerate=30) as camera:
camera.start_preview()
# Annotator renders in software so use a smaller size and scale results
# for increased performance.
annotator = Annotator(camera, dimensions=(320, 240))
scale_x = 320 / 1640
scale_y = 240 / 1232
with CameraInference(face_detection.model()) as inference:
for result in inference.run(num_frames):
faces = face_detection.get_faces(result)
annotator.clear()
for face in faces:
x, y, width, height = face.bounding_box
annotator.bounding_box(
(scale_x * x, scale_y * y, scale_x *
(x + width), scale_y * (y + height)),
fill=0)
annotator.update()
print('#%05d (%5.2f fps): num_faces=%d, avg_joy_score=%.2f' %
(inference.count, inference.rate, len(faces),
avg_joy_score(faces)))
camera.stop_preview()
def run(self):
while self._running:
try:
self.logger.debug('loading inference model ...')
with CameraInference(face_detection.model()) as inference:
self.logger.debug('running inference ...')
for result in inference.run():
faces = face_detection.get_faces(result)
if faces:
self.logger.debug('found {} faces'.format(
len(faces)))
outgoing_signals = []
for face in faces:
signal_dict = {
'bounding_box': face.bounding_box,
'face_score': face.face_score,
'joy_score': face.joy_score,
}
outgoing_signal = Signal(signal_dict)
outgoing_signals.append(outgoing_signal)
if not self._running:
break
self.notify_signals(outgoing_signals)
except:
self.logger.exception('failed to get inference result!')
self.reset_camera()
self.release_camera()
def facedetect():
with PiCamera() as camera, Leds() as leds:
# Configure camera
camera.resolution = (1640, 922) # Full Frame, 16:9 (Camera v2)
camera.start_preview()
leds.update(Leds.privacy_on())
# Do inference on VisionBonnet
with CameraInference(face_detection.model()) as inference:
for result in inference.run():
if len(face_detection.get_faces(result)) >= 1:
camera.capture(
'faces_' + str(datetime.datetime.now()) + '.jpg')
# print(device.is_active)
print(led.is_active)
# device.on()
# bz.on()
led.on()
print(led.is_active)
# time.sleep(1)
# print(device.is_active)
led.off()
print(led.is_active)
break
# Stop preview
camera.stop_preview()
leds.update(Leds.privacy_on())
def run_inference(num_frames, on_loaded):
"""Yields (faces, (frame_width, frame_height)) tuples."""
with CameraInference(face_detection.model()) as inference:
on_loaded()
for result in inference.run(num_frames):
yield face_detection.get_faces(result), (result.width,
result.height)
def model_selector(argument):
options = {
"object": object_detection.model(),
"face": face_detection.model(),
"class": image_classification.model()
}
return options.get(argument, "nothing")
def detect_face():
with CameraInference(face_detection.model()) as camera_inference:
counter = 1
x_history, y_history, w_history, h_history = [], [], [], []
for result in camera_inference.run():
check_termination_trigger()
faces = face_detection.get_faces(result)
face = select_face(faces)
if face:
x, y, w, h = face.bounding_box
x_err = error_update(x_history, x)
y_err = error_update(y_history, y)
w_err = error_update(w_history, w)
h_err = error_update(h_history, h)
if face_detection_is_stable(x_err,
y_err,
w_err,
h_err,
cutoff=0.03):
face_box = (int(sum(x_history) / len(x_history)),
int(sum(y_history) / len(y_history)),
int(sum(w_history) / len(w_history)),
int(sum(h_history) / len(h_history)))
break
counter += 1
return face_box
def _run_detector(self):
with PiCamera() as camera, PrivacyLED():
# Forced sensor mode, 1640x1232, full FoV. See:
# https://picamera.readthedocs.io/en/release-1.13/fov.html#sensor-modes
# This is the resolution inference run on.
camera.sensor_mode = 4
camera.resolution = (1640, 1232)
camera.framerate = 15
# Blend the preview layer with the alpha value from the flags.
camera.start_preview(alpha=self._preview_alpha)
with CameraInference(face_detection.model()) as inference:
self._play_sound(MODEL_LOAD_SOUND)
self._animator.start()
for i, result in enumerate(inference.run()):
faces = face_detection.get_faces(result)
# Calculate joy score as an average for all detected faces.
joy_score = 0.0
if faces:
joy_score = sum([face.joy_score for face in faces]) / len(faces)
# Append new joy score to the window and calculate mean value.
self._joy_score_window.append(joy_score)
self.joy_score = sum(self._joy_score_window) / len(
self._joy_score_window)
if self._num_frames == i or not self._run_event.is_set():
break
def run(self, num_frames, preview_alpha, image_format, image_folder):
logger.info('Starting...')
leds = Leds()
player = Player(gpio=22, bpm=10)
photographer = Photographer(image_format, image_folder)
animator = Animator(leds, self._done)
try:
# Forced sensor mode, 1640x1232, full FoV. See:
# https://picamera.readthedocs.io/en/release-1.13/fov.html#sensor-modes
# This is the resolution inference run on.
with PiCamera(sensor_mode=4,
resolution=(1640, 1232)) as camera, PrivacyLed(leds):
def take_photo():
logger.info('Button pressed.')
player.play(BEEP_SOUND)
photographer.shoot(camera)
# Blend the preview layer with the alpha value from the flags.
if preview_alpha > 0:
logger.info('Starting preview with alpha %d',
preview_alpha)
camera.start_preview(alpha=preview_alpha)
else:
logger.info('Not starting preview, alpha 0')
button = Button(23)
button.when_pressed = take_photo
joy_score_moving_average = MovingAverage(10)
prev_joy_score = 0.0
with CameraInference(face_detection.model()) as inference:
logger.info('Model loaded.')
player.play(MODEL_LOAD_SOUND)
for i, result in enumerate(inference.run()):
faces = face_detection.get_faces(result)
photographer.update_faces(faces)
joy_score = joy_score_moving_average.next(
average_joy_score(faces))
animator.update_joy_score(joy_score)
if joy_score > JOY_SCORE_PEAK > prev_joy_score:
player.play(JOY_SOUND)
elif joy_score < JOY_SCORE_MIN < prev_joy_score:
player.play(SAD_SOUND)
prev_joy_score = joy_score
if self._done.is_set() or i == num_frames:
break
finally:
player.stop()
photographer.stop()
player.join()
photographer.join()
animator.join()
def main():
"""Face detection camera inference example."""
parser = argparse.ArgumentParser()
parser.add_argument(
'--num_frames',
'-n',
type=int,
dest='num_frames',
default=-1,
help='Sets the number of frames to run for, otherwise runs forever.')
args = parser.parse_args()
with PiCamera() as camera:
# Forced sensor mode, 1640x1232, full FoV. See:
# https://picamera.readthedocs.io/en/release-1.13/fov.html#sensor-modes
# This is the resolution inference run on.
camera.sensor_mode = 4
# Scaled and cropped resolution. If different from sensor mode implied
# resolution, inference results must be adjusted accordingly. This is
# true in particular when camera.start_recording is used to record an
# encoded h264 video stream as the Pi encoder can't encode all native
# sensor resolutions, or a standard one like 1080p may be desired.
camera.resolution = (1640, 1232)
# Start the camera stream.
camera.framerate = 30
camera.start_preview()
# Annotator renders in software so use a smaller size and scale results
# for increased performace.
annotator = Annotator(camera, dimensions=(320, 240))
scale_x = 320 / 1640
scale_y = 240 / 1232
# Incoming boxes are of the form (x, y, width, height). Scale and
# transform to the form (x1, y1, x2, y2).
def transform(bounding_box):
x, y, width, height = bounding_box
return (scale_x * x, scale_y * y, scale_x * (x + width),
scale_y * (y + height))
with CameraInference(face_detection.model()) as inference:
for i, result in enumerate(inference.run()):
if i == args.num_frames:
break
faces = face_detection.get_faces(result)
annotator.clear()
for face in faces:
annotator.bounding_box(transform(face.bounding_box),
fill=0)
annotator.update()
print('Iteration #%d: num_faces=%d' % (i, len(faces)))
#write to file
F = open('../wwww/check_faces.txt', 'w')
F.write(len(faces))
F.close
camera.stop_preview()
def main():
"""Face detection camera inference example."""
parser = argparse.ArgumentParser()
parser.add_argument('--num_frames', '-n', type=int, dest='num_frames', default=None,
help='Sets the number of frames to run for, otherwise runs forever.')
args = parser.parse_args()
leds = Leds()
leds.reset()
leds.update(Leds.privacy_on())
noCustomerDelay = 0;
with PiCamera(sensor_mode=4, resolution=(1640, 1232)) as camera:
# with PiCamera(sensor_mode=4, resolution=(1640, 1232), framerate=30) as camera:
# with PiCamera() as camera:
camera.start_preview()
with CameraInference(face_detection.model()) as inference:
for result in inference.run():
if len(face_detection.get_faces(result)) >= 1:
noCustomerDelay = 0
leds.update(Leds.rgb_on(GREEN))
# stream = io.BytesIO()
# camera.capture(stream, format='jpeg')
# stream.seek(0)
camera.capture('faces.jpg')
faces = GetFaceId('faces.jpg')
print(faces)
if(len(faces) > 0):
result = GetUserId(faces[0])
print(result)
highestScore = 0
userId = ""
for face in result:
for candidate in face['candidates']:
if(highestScore < candidate['confidence']):
userId = candidate['personId']
InfoVendingMachine("10", userId)
print(userId)
# break
else:
if noCustomerDelay >= 30:
leds.update(Leds.rgb_on(WHITE))
InfoVendingMachine("10", '')
noCustomerDelay = 0;
else:
noCustomerDelay += 1;
camera.stop_preview()
leds.reset()
def test_face_detection(self):
avg_end_to_end, avg_bonnet = self.benchmarkModel(
face_detection.model(), face_detection.get_faces)
# Latency depends on number of faces in the scene, which is
# unpredictable when the test runs. Setting a larger variation value
# here to accommodate this.
self.assertLatency(avg_bonnet, 76.0, variation=0.6)
self.assertLatency(avg_end_to_end, 91.0, variation=0.6)
def _initialize_inference() -> CameraInference:
'''
One time, the process died without stopping inference, which
made it impossible to start again. So if we get InferenceException
when trying to initialize CameraInference, we retry after resetting
the InferenceEngine.
'''
return CameraInference(face_detection.model())
def test_face_detection(self):
avg_end_to_end, avg_bonnet = self.benchmarkModel(
face_detection.model(), face_detection.get_faces)
# Latency depends on number of faces in the scene, which is
# unpredictable when the test runs. Setting a larger variation value
# here to accommodate this.
self.assertLatency(avg_bonnet, 76.0, variation=0.6)
self.assertLatency(avg_end_to_end, 91.0, variation=0.6)
def main():
"""Face detection camera inference example."""
parser = argparse.ArgumentParser()
parser.add_argument(
'--num_frames',
'-n',
type=int,
dest='num_frames',
default=None,
help='Sets the number of frames to run for, otherwise runs forever.')
args = parser.parse_args()
# pool = [ImageProcessor() for i in range(4)]
# Forced sensor mode, 1640x1232, full FoV. See:
# https://picamera.readthedocs.io/en/release-1.13/fov.html#sensor-modes
# This is the resolution inference run on.
with PiCamera(sensor_mode=4, resolution=(1640, 1232),
framerate=30) as camera:
camera.start_preview()
# time.sleep(2)
# Annotator renders in software so use a smaller size and scale results
# for increased performace.
# annotator = Annotator(camera, dimensions=(320, 240))
scale_x = 320 / 1640
scale_y = 240 / 1232
# Incoming boxes are of the form (x, y, width, height). Scale and
# transform to the form (x1, y1, x2, y2).
def transform(bounding_box):
x, y, width, height = bounding_box
return (scale_x * x, scale_y * y, scale_x * (x + width),
scale_y * (y + height))
with CameraInference(face_detection.model()) as inference:
# camera.capture_sequence(streams(), use_video_port=True)
# print("after capture_sequence")
print(args.num_frames)
for result in inference.run(args.num_frames):
faces = face_detection.get_faces(result)
# annotator.clear()
# for face in faces:
# annotator.bounding_box(transform(face.bounding_box), fill=0)
# annotator.update()
if len(faces) > 0:
# start to identify the person
print("Has Customer")
hasCustomer = True
else:
print("No Customer")
hasCustomer = False
print('#%05d (%5.2f fps): num_faces=%d, avg_joy_score=%.2f' %
(inference.count, inference.rate, len(faces),
avg_joy_score(faces)))
camera.stop_preview()
def test_camera_inference(self):
with PiCamera(sensor_mode=4):
with CameraInference(fd.model()) as inference:
state = inference.engine.get_inference_state()
self.assertEqual(len(state.loaded_models), 1)
self.assertEqual(len(state.processing_models), 1)
results = [fd.get_faces(result) for result in inference.run(10)]
self.assertEqual(len(results), 10)
def run(self, num_frames, preview_alpha, image_format, image_folder, enable_streaming):
logger.info('Starting...')
leds = Leds()
with contextlib.ExitStack() as stack:
player = stack.enter_context(Player(gpio=BUZZER_GPIO, bpm=10))
photographer = stack.enter_context(Photographer(image_format, image_folder))
animator = stack.enter_context(Animator(leds))
# Forced sensor mode, 1640x1232, full FoV. See:
# https://picamera.readthedocs.io/en/release-1.13/fov.html#sensor-modes
# This is the resolution inference run on.
# Use half of that for video streaming (820x616).
camera = stack.enter_context(PiCamera(sensor_mode=4, resolution=(820, 616)))
stack.enter_context(PrivacyLed(leds))
server = None
if enable_streaming:
server = stack.enter_context(StreamingServer(camera))
server.run()
def take_photo():
logger.info('Button pressed.')
player.play(BEEP_SOUND)
photographer.shoot(camera)
if preview_alpha > 0:
camera.start_preview(alpha=preview_alpha)
button = Button(BUTTON_GPIO)
button.when_pressed = take_photo
joy_score_moving_average = MovingAverage(10)
prev_joy_score = 0.0
with CameraInference(face_detection.model()) as inference:
logger.info('Model loaded.')
player.play(MODEL_LOAD_SOUND)
for i, result in enumerate(inference.run()):
faces = face_detection.get_faces(result)
photographer.update_faces(faces)
joy_score = joy_score_moving_average.next(average_joy_score(faces))
animator.update_joy_score(joy_score)
if server:
data = server_inference_data(result.width, result.height, faces, joy_score)
server.send_inference_data(data)
if joy_score > JOY_SCORE_PEAK > prev_joy_score:
player.play(JOY_SOUND)
elif joy_score < JOY_SCORE_MIN < prev_joy_score:
player.play(SAD_SOUND)
prev_joy_score = joy_score
if self._done.is_set() or i == num_frames:
break
def test_camera_inference(self):
with PiCamera(sensor_mode=4):
with CameraInference(fd.model()) as inference:
state = inference.engine.get_inference_state()
self.assertEqual(len(state.loaded_models), 1)
self.assertEqual(len(state.processing_models), 1)
results = [
fd.get_faces(result) for result in inference.run(10)
]
self.assertEqual(len(results), 10)
def testFaceDetectionWithParams(self):
with TestImage('faces.jpg') as image:
with ImageInference(face_detection.model()) as inference:
params = {'max_face_size': 500}
faces = face_detection.get_faces(inference.run(image, params))
self.assertEqual(1, len(faces))
face0 = faces[0]
self.assertAlmostEqual(face0.face_score, 0.884, delta=0.001)
self.assertAlmostEqual(face0.joy_score, 0.073, delta=0.001)
self.assertEqual((748.0, 1063.0, 496.0, 496.0), face0.bounding_box)
def main():
with PiCamera() as camera:
camera.resolution = (1640, 922)
camera.start_preview()
with CameraInference(face_detection.model()) as inference:
for result in inference.run():
if len(face_detection.get_faces(result)) >= 1:
camera.capture('faces.jpg')
break
camera.stop_preview()
def _run(self):
logger.info('Starting...')
leds = Leds()
with contextlib.ExitStack() as stack:
player = stack.enter_context(Player(gpio=BUZZER_GPIO, bpm=10))
photographer = stack.enter_context(
Photographer(self.args.image_format, self.args.image_folder))
animator = stack.enter_context(Animator(leds))
stack.enter_context(PrivacyLed(leds))
server = None
if self.args.enable_streaming:
server = stack.enter_context(StreamingServer(self.camera))
server.run()
def take_photo():
logger.info('Button pressed.')
player.play(BEEP_SOUND)
photographer.shoot(self.camera)
button = Button(BUTTON_GPIO)
button.when_pressed = take_photo
joy_score_moving_average = MovingAverage(10)
prev_joy_score = 0.0
with CameraInference(face_detection.model()) as inference:
logger.info('Model loaded.')
player.play(MODEL_LOAD_SOUND)
for i, result in enumerate(inference.run()):
faces = face_detection.get_faces(result)
photographer.update_faces(faces)
avg_joy_score = average_joy_score(faces)
joy_score = joy_score_moving_average.next(avg_joy_score)
animator.update_joy_score(joy_score)
if server:
data = server_inference_data(result.width,
result.height, faces,
joy_score)
server.send_inference_data(data)
if avg_joy_score > JOY_SCORE_MIN:
photographer.shoot(self.camera)
# if joy_score > JOY_SCORE_PEAK > prev_joy_score:
# player.play(JOY_SOUND)
# elif joy_score < JOY_SCORE_MIN < prev_joy_score:
# player.play(SAD_SOUND)
prev_joy_score = joy_score
if self._done.is_set() or i == self.args.num_frames:
break
def main():
"""Face detection camera inference example."""
parser = argparse.ArgumentParser()
parser.add_argument(
'--num_frames',
'-n',
type=int,
dest='num_frames',
default=None,
help='Sets the number of frames to run for, otherwise runs forever.')
args = parser.parse_args()
# Forced sensor mode, 1640x1232, full FoV. See:
# https://picamera.readthedocs.io/en/release-1.13/fov.html#sensor-modes
# This is the resolution inference run on.
with PiCamera(sensor_mode=4, resolution=(1640, 1232),
framerate=30) as camera:
camera.start_preview()
# Annotator renders in software so use a smaller size and scale results
# for increased performace.
annotator = Annotator(camera, dimensions=(320, 240))
scale_x = 320 / 1640
scale_y = 240 / 1232
# Incoming boxes are of the form (x, y, width, height). Scale and
# transform to the form (x1, y1, x2, y2).
def transform(bounding_box):
x, y, width, height = bounding_box
return (scale_x * x, scale_y * y, scale_x * (x + width),
scale_y * (y + height))
with CameraInference(face_detection.model()) as inference:
for result in inference.run(args.num_frames):
faces = face_detection.get_faces(result)
print(faces)
annotator.clear()
for index, face in enumerate(faces):
sio.emit('movement', {
'index': index,
'score': face.face_score
})
annotator.bounding_box(transform(face.bounding_box),
fill=0)
annotator.update()
print('#%05d (%5.2f fps): num_faces=%d, avg_joy_score=%.2f' %
(inference.count, inference.rate, len(faces),
avg_joy_score(faces)))
camera.stop_preview()
def main():
parser = argparse.ArgumentParser('Face detection using raspivid.')
parser.add_argument('--num_frames', '-n', type=int, default=None,
help='Sets the number of frames to run for, otherwise runs forever.')
args = parser.parse_args()
with Process(raspivid_cmd(sensor_mode=4)), \
CameraInference(face_detection.model()) as inference:
for result in inference.run(args.num_frames):
faces = face_detection.get_faces(result)
print('#%05d (%5.2f fps): num_faces=%d, avg_joy_score=%.2f' %
(inference.count, inference.rate, len(faces), avg_joy_score(faces)))
def main():
with PiCamera() as camera:
# Configure camera
camera.resolution = (1640, 922) # Full Frame, 16:9 (Camera v2)
camera.start_preview()
# Do inference on VisionBonnet
with CameraInference(face_detection.model()) as inference:
for result in inference.run():
if len(face_detection.get_faces(result)) >= 1:
camera.capture('faces.jpg')
break
# Stop preview
camera.stop_preview()
def testFaceDetection(self):
with TestImage('faces.jpg') as image:
with ImageInference(face_detection.model()) as inference:
faces = face_detection.get_faces(inference.run(image))
self.assertEqual(2, len(faces))
face0 = faces[0]
self.assertAlmostEqual(face0.face_score, 1.0, delta=0.001)
self.assertAlmostEqual(face0.joy_score, 0.969, delta=0.001)
self.assertEqual((812.0, 44.0, 1000.0, 1000.0), face0.bounding_box)
face1 = faces[1]
self.assertAlmostEqual(face1.face_score, 0.884, delta=0.001)
self.assertAlmostEqual(face1.joy_score, 0.073, delta=0.001)
self.assertEqual((748.0, 1063.0, 496.0, 496.0), face1.bounding_box)
def main():
parser = argparse.ArgumentParser()
parser.add_argument('--input', '-i', dest='input', required=True)
parser.add_argument('--output', '-o', dest='output')
args = parser.parse_args()
with ImageInference(face_detection.model()) as inference:
image = Image.open(args.input)
draw = ImageDraw.Draw(image)
for i, face in enumerate(face_detection.get_faces(inference.run(image))):
print('Face #%d: %s' % (i, str(face)))
x, y, width, height = face.bounding_box
draw.rectangle((x, y, x + width, y + height), outline='red')
if args.output:
image.save(args.output)
def main():
parser = argparse.ArgumentParser()
parser.add_argument('--input', '-i', dest='input', required=True)
parser.add_argument('--output', '-o', dest='output')
args = parser.parse_args()
with ImageInference(face_detection.model()) as inference:
image = Image.open(args.input)
draw = ImageDraw.Draw(image)
faces = face_detection.get_faces(inference.run(image))
for i, face in enumerate(faces):
print('Face #%d: %s' % (i, face))
x, y, width, height = face.bounding_box
draw.rectangle((x, y, x + width, y + height), outline='red')
if args.output:
image.save(args.output)
def main():
parser = argparse.ArgumentParser('Face detection using raspivid.')
parser.add_argument(
'--num_frames',
'-n',
type=int,
default=None,
help='Sets the number of frames to run for, otherwise runs forever.')
args = parser.parse_args()
with Process(raspivid_cmd(sensor_mode=4)), \
CameraInference(face_detection.model()) as inference:
for result in inference.run(args.num_frames):
faces = face_detection.get_faces(result)
print('#%05d (%5.2f fps): num_faces=%d, avg_joy_score=%.2f' %
(inference.count, inference.rate, len(faces),
avg_joy_score(faces)))
def facedetector():
"""Face detection camera inference example."""
global currentState
# Forced sensor mode, 1640x1232, full FoV. See:
# https://picamera.readthedocs.io/en/release-1.13/fov.html#sensor-modes
# This is the resolution inference run on.
with PiCamera(sensor_mode=4, resolution=(1640, 1232),
framerate=30) as camera:
# Annotator renders in software so use a smaller size and scale results
# for increased performace.
scale_x = 320 / 1640
scale_y = 240 / 1232
# Incoming boxes are of the form (x, y, width, height). Scale and
# transform to the form (x1, y1, x2, y2).
def transform(bounding_box):
x, y, width, height = bounding_box
return (scale_x * x, scale_y * y, scale_x * (width),
scale_y * (height))
def checkSquat(bounding_box):
x, y, width, height = bounding_box
# calc average y position
avgHeight = y + height / 2
#print("AvgHeight: ", avgHeight)
if avgHeight > THRESHOLD_Y:
return 2
else:
return 1
with CameraInference(face_detection.model()) as inference:
for result in inference.run(None):
faces = face_detection.get_faces(result)
checkedFaces = []
for face in faces:
checkedFaces.append(
checkSquat(transform(face.bounding_box)))
if len(checkedFaces) == 0:
currentState = 1
elif (2 in checkedFaces):
currentState = 2
else:
currentState = 0
def test_load_unload(self):
with InferenceEngine() as engine:
state = engine.get_inference_state()
self.assertFalse(state.loaded_models)
self.assertFalse(state.processing_models)
model_name = engine.load_model(fd.model())
state = engine.get_inference_state()
self.assertEqual(set(state.loaded_models), {model_name})
self.assertFalse(state.processing_models)
with self.assertRaises(InferenceException):
engine.unload_model('invalid_model_name')
engine.unload_model(model_name)
state = engine.get_inference_state()
self.assertFalse(state.loaded_models)
self.assertFalse(state.processing_models)
def test_load_unload(self):
with InferenceEngine() as engine:
state = engine.get_inference_state()
self.assertFalse(state.loaded_models)
self.assertFalse(state.processing_models)
model_name = engine.load_model(fd.model())
state = engine.get_inference_state()
self.assertEqual(set(state.loaded_models), {model_name})
self.assertFalse(state.processing_models)
with self.assertRaises(InferenceException):
engine.unload_model('invalid_model_name')
engine.unload_model(model_name)
state = engine.get_inference_state()
self.assertFalse(state.loaded_models)
self.assertFalse(state.processing_models)
def main():
with PiCamera(resolution=(1640, 922)) as camera:
with CameraInference(face_detection.model()) as inference:
for result in inference.run():
if len(face_detection.get_faces(result)) >= 1:
print("face detected!")
h264_file_path = generate_filename(datetime.datetime.now())
leds = Leds()
with PrivacyLed(leds):
camera.start_recording(h264_file_path, format='h264')
sleep(5)
camera.stop_recording()
leds.reset()
output_file_path = h264_to_mp4(h264_file_path)
upload_video_to_slack(output_file_path, SLACK_TOKEN,
SLACK_CHANNEL_ID)
def main():
global lastSaveTime
with PiCamera() as camera:
# Configure camera
camera.resolution = (1640, 922) # Full Frame, 16:9 (Camera v2)
camera.start_preview()
# Do inference on VisionBonnet
with CameraInference(face_detection.model()) as inference:
for result in inference.run():
if len(face_detection.get_faces(
result)) >= 1 and time.time() - lastSaveTime > 60:
print('yay, we got an image')
camera.capture('image.jpg')
discordcode.send_image('image.jpg')
lastSaveTime = time.time()
# Stop preview
camera.stop_preview()
def main():
print("Play tune")
player = TonePlayer(gpio=BUZZER_GPIO_PIN, bpm=10)
player.play(*START_SOUND)
print("Initialize robot")
robot = Robot()
robot.resetPosition()
print("Switch on leds")
with Leds() as leds:
leds.update(Leds.rgb_on(Color.GREEN))
print("Switch on camera")
with PiCamera(sensor_mode=4,
resolution=(CAMERA_WIDTH, CAMERA_HEIGHT),
framerate=30) as camera:
if ENABLE_DISPLAY:
camera.start_preview()
annotator = Annotator(camera, dimensions=(320, 240))
else:
annotator = None
print("Load model")
with CameraInference(face_detection.model()) as inference:
loop(inference=inference,
robot=robot,
annotator=annotator,
leds=leds)
if ENABLE_DISPLAY:
camera.stop_preview()
player.play(*STOP_SOUND)
# Give time for the user to remote its finger.
sleep(3)
robot.resetPosition()
def main():
"""Face detection camera inference example."""
parser = argparse.ArgumentParser()
parser.add_argument('--num_frames', '-n', type=int, dest='num_frames', default=None,
help='Sets the number of frames to run for, otherwise runs forever.')
args = parser.parse_args()
# Forced sensor mode, 1640x1232, full FoV. See:
# https://picamera.readthedocs.io/en/release-1.13/fov.html#sensor-modes
# This is the resolution inference run on.
with PiCamera(sensor_mode=4, resolution=(1640, 1232), framerate=30) as camera:
camera.start_preview()
# Annotator renders in software so use a smaller size and scale results
# for increased performace.
annotator = Annotator(camera, dimensions=(320, 240))
scale_x = 320 / 1640
scale_y = 240 / 1232
# Incoming boxes are of the form (x, y, width, height). Scale and
# transform to the form (x1, y1, x2, y2).
def transform(bounding_box):
x, y, width, height = bounding_box
return (scale_x * x, scale_y * y, scale_x * (x + width),
scale_y * (y + height))
with CameraInference(face_detection.model()) as inference:
for result in inference.run(args.num_frames):
faces = face_detection.get_faces(result)
annotator.clear()
for face in faces:
annotator.bounding_box(transform(face.bounding_box), fill=0)
annotator.update()
print('#%05d (%5.2f fps): num_faces=%d, avg_joy_score=%.2f' %
(inference.count, inference.rate, len(faces), avg_joy_score(faces)))
camera.stop_preview()
def run_inference(num_frames, on_loaded):
"""Yields (faces, (frame_width, frame_height)) tuples."""
with CameraInference(face_detection.model()) as inference:
on_loaded()
for result in inference.run(num_frames):
yield face_detection.get_faces(result), (result.width, result.height)
def run(self, num_frames, preview_alpha, image_format, image_folder):
logger.info('Starting...')
leds = Leds()
player = Player(gpio=22, bpm=10)
photographer = Photographer(image_format, image_folder)
animator = Animator(leds, self._done)
try:
# Forced sensor mode, 1640x1232, full FoV. See:
# https://picamera.readthedocs.io/en/release-1.13/fov.html#sensor-modes
# This is the resolution inference run on.
with PiCamera(sensor_mode=4,
resolution=(1640, 1232)) as camera, PrivacyLed(leds):
def take_photo():
logger.info('Button pressed.')
player.play(BEEP_SOUND)
photographer.shoot(camera)
# Blend the preview layer with the alpha value from the flags.
if preview_alpha > 0:
logger.info('Starting preview with alpha %d',
preview_alpha)
camera.start_preview(alpha=preview_alpha)
else:
logger.info('Not starting preview, alpha 0')
button = Button(23)
button.when_pressed = take_photo
joy_score_moving_average = MovingAverage(10)
prev_joy_score = 0.0
#fb.delete('/', 'joy')
time_interval = 1
camera_id = 1
t_ref = time.localtime()
with CameraInference(face_detection.model()) as inference:
logger.info('Model loaded.')
player.play(MODEL_LOAD_SOUND)
for i, result in enumerate(inference.run()):
t_begin = datetime.now()
faces = face_detection.get_faces(result)
num_faces = len(faces)
print("face num" + str(num_faces))
# for face in faces:
# print(face.joy_score)
photographer.update_faces(faces)
joy_score = joy_score_moving_average.next(
average_joy_score(faces))
animator.update_joy_score(joy_score)
print(joy_score)
t0 = time.localtime()
time_stamp = str(t0.tm_hour) + ":" + str(
t0.tm_min) + ":" + str(t0.tm_sec) + " | " + str(
t0.tm_mon) + "/" + str(t0.tm_mday) + "/" + str(
t0.tm_year)
time_up = time_stamp = str(t0.tm_hour) + ":" + str(
t0.tm_min) + ":" + str(t0.tm_sec)
elapsed_time = int(t0.tm_sec) - int(t_ref.tm_sec)
# print("Elapsed time: " + str(elapsed_time_milli))
if elapsed_time < 0:
elapsed_time += 60
if elapsed_time >= time_interval:
if joy_score != 0:
fb.put(
'/joy_data/' + str(t0.tm_year) + "/" +
str(t0.tm_mon) + "/" + str(t0.tm_mday) +
"/" + str(t0.tm_hour) + "/" +
str(t0.tm_min) + "/", time.ctime(), {
'time': time_stamp,
'cam_id': camera_id,
'num_faces': num_faces,
'joy_score': joy_score
})
t_ref = t0
print(time_stamp)
#if joy_score > JOY_SCORE_PEAK > prev_joy_score:
# player.play(JOY_SOUND)
#elif joy_score < JOY_SCORE_MIN < prev_joy_score:
# player.play(SAD_SOUND)
prev_joy_score = joy_score
t_end = datetime.now()
ellapsed_milli = t_end - t_begin
print("Elapsed time: ")
print(int(ellapsed_milli.total_seconds() * 1000))
if self._done.is_set() or i == num_frames:
break
finally:
player.stop()
photographer.stop()
player.join()
photographer.join()
animator.join()
def test_image_inference_raw(self):
with ImageInference(fd.model()) as inference, TestImage('faces.jpg') as image:
fd.get_faces(inference.run(image))
def test_image_inference_jpeg(self):
with ImageInference(fd.model()) as inference, TestImageFile('faces.jpg') as f:
fd.get_faces(inference.run(f.read()))