class TestEngine(unittest.TestCase):
def setUp(self):
self.engine = Engine(1000)
def test_retrieval(self):
for k in range(100):
self.engine.clean_all_buckets()
x = numpy.random.randn(1000)
x_data = 'data'
self.engine.store_vector(x, x_data)
n = self.engine.neighbours(x)
y = n[0][0]
y_data = n[0][1]
y_distance = n[0][2]
self.assertTrue((y == x).all())
self.assertEqual(y_data, x_data)
self.assertEqual(y_distance, 0.0)
def test_retrieval_sparse(self):
for k in range(100):
self.engine.clean_all_buckets()
x = scipy.sparse.rand(1000, 1, density=0.05)
x_data = 'data'
self.engine.store_vector(x, x_data)
n = self.engine.neighbours(x)
y = n[0][0]
y_data = n[0][1]
y_distance = n[0][2]
self.assertTrue((y - x).sum() == 0.0)
self.assertEqual(y_data, x_data)
self.assertEqual(y_distance, 0.0)
class TestEngine(unittest.TestCase):
def setUp(self):
self.engine = Engine(1000)
def test_retrieval(self):
for k in range(100):
self.engine.clean_all_buckets()
x = numpy.random.randn(1000)
x_data = 'data'
self.engine.store_vector(x, x_data)
n = self.engine.neighbours(x)
y = n[0][0]
y_data = n[0][1]
y_distance = n[0][2]
self.assertTrue((y == x).all())
self.assertEqual(y_data, x_data)
self.assertEqual(y_distance, 0.0)
def test_retrieval_sparse(self):
for k in range(100):
self.engine.clean_all_buckets()
x = scipy.sparse.rand(1000, 1, density=0.05)
x_data = 'data'
self.engine.store_vector(x, x_data)
n = self.engine.neighbours(x)
y = n[0][0]
y_data = n[0][1]
y_distance = n[0][2]
self.assertTrue((y - x).sum() == 0.0)
self.assertEqual(y_data, x_data)
self.assertEqual(y_distance, 0.0)
class TestEngine(unittest.TestCase):
def setUp(self):
self.engine = Engine(1000)
def test_storage_issue(self):
engine1 = Engine(100)
engine2 = Engine(100)
for k in range(1000):
x = numpy.random.randn(100)
x_data = 'data'
engine1.store_vector(x, x_data)
# Each engine should have its own default storage
self.assertEqual(len(engine2.storage.buckets), 0)
def test_retrieval(self):
for k in range(100):
self.engine.clean_all_buckets()
x = numpy.random.randn(1000)
x_data = 'data'
self.engine.store_vector(x, x_data)
n = self.engine.neighbours(x)
y, y_data, y_distance = n[0]
normalized_x = unitvec(x)
delta = 0.000000001
self.assertAlmostEqual(numpy.abs((normalized_x - y)).max(),
0,
delta=delta)
self.assertEqual(y_data, x_data)
self.assertAlmostEqual(y_distance, 0.0, delta=delta)
def test_retrieval_sparse(self):
for k in range(100):
self.engine.clean_all_buckets()
x = scipy.sparse.rand(1000, 1, density=0.05)
x_data = 'data'
self.engine.store_vector(x, x_data)
n = self.engine.neighbours(x)
y, y_data, y_distance = n[0]
normalized_x = unitvec(x)
delta = 0.000000001
self.assertAlmostEqual(numpy.abs((normalized_x - y)).max(),
0,
delta=delta)
self.assertEqual(y_data, x_data)
self.assertAlmostEqual(y_distance, 0.0, delta=delta)
class TestEngine(unittest.TestCase):
def setUp(self):
self.engine = Engine(1000)
def test_storage_issue(self):
engine1 = Engine(100)
engine2 = Engine(100)
for k in range(1000):
x = numpy.random.randn(100)
x_data = 'data'
engine1.store_vector(x, x_data)
# Each engine should have its own default storage
self.assertTrue(len(engine2.storage.buckets)==0)
def test_retrieval(self):
for k in range(100):
self.engine.clean_all_buckets()
x = numpy.random.randn(1000)
x_data = 'data'
self.engine.store_vector(x, x_data)
n = self.engine.neighbours(x)
y = n[0][0]
y_data = n[0][1]
y_distance = n[0][2]
self.assertTrue((y == x).all())
self.assertEqual(y_data, x_data)
self.assertEqual(y_distance, 0.0)
def test_retrieval_sparse(self):
for k in range(100):
self.engine.clean_all_buckets()
x = scipy.sparse.rand(1000, 1, density=0.05)
x_data = 'data'
self.engine.store_vector(x, x_data)
n = self.engine.neighbours(x)
y = n[0][0]
y_data = n[0][1]
y_distance = n[0][2]
self.assertTrue((y - x).sum() == 0.0)
self.assertEqual(y_data, x_data)
self.assertEqual(y_distance, 0.0)
class TestEngine(unittest.TestCase):
def setUp(self):
self.engine = Engine(1000)
def test_storage_issue(self):
engine1 = Engine(100)
engine2 = Engine(100)
for k in range(1000):
x = numpy.random.randn(100)
x_data = 'data'
engine1.store_vector(x, x_data)
# Each engine should have its own default storage
self.assertTrue(len(engine2.storage.buckets)==0)
def test_retrieval(self):
for k in range(100):
self.engine.clean_all_buckets()
x = numpy.random.randn(1000)
x_data = 'data'
self.engine.store_vector(x, x_data)
n = self.engine.neighbours(x)
y, y_data, y_distance = n[0]
normalized_x = unitvec(x)
delta = 0.000000001
self.assertAlmostEqual(numpy.abs((normalized_x - y)).max(), 0, delta=delta)
self.assertEqual(y_data, x_data)
self.assertAlmostEqual(y_distance, 0.0, delta=delta)
def test_retrieval_sparse(self):
for k in range(100):
self.engine.clean_all_buckets()
x = scipy.sparse.rand(1000, 1, density=0.05)
x_data = 'data'
self.engine.store_vector(x, x_data)
n = self.engine.neighbours(x)
y, y_data, y_distance = n[0]
normalized_x = unitvec(x)
delta = 0.000000001
self.assertAlmostEqual(numpy.abs((normalized_x - y)).max(), 0, delta=delta)
self.assertEqual(y_data, x_data)
self.assertAlmostEqual(y_distance, 0.0, delta=delta)
class TestEngine(unittest.TestCase):
def setUp(self):
self.engine = Engine(1000)
def test_storage_issue(self):
engine1 = Engine(100)
engine2 = Engine(100)
for k in range(1000):
x = numpy.random.randn(100)
x_data = 'data'
engine1.store_vector(x, x_data)
# Each engine should have its own default storage
self.assertTrue(len(engine2.storage.buckets) == 0)
def test_retrieval(self):
for k in range(100):
self.engine.clean_all_buckets()
x = numpy.random.randn(1000)
x_data = 'data'
self.engine.store_vector(x, x_data)
n = self.engine.neighbours(x)
y = n[0][0]
y_data = n[0][1]
y_distance = n[0][2]
self.assertTrue((y == x).all())
self.assertEqual(y_data, x_data)
self.assertEqual(y_distance, 0.0)
def test_retrieval_sparse(self):
for k in range(100):
self.engine.clean_all_buckets()
x = scipy.sparse.rand(1000, 1, density=0.05)
x_data = 'data'
self.engine.store_vector(x, x_data)
n = self.engine.neighbours(x)
y = n[0][0]
y_data = n[0][1]
y_distance = n[0][2]
self.assertTrue((y - x).sum() == 0.0)
self.assertEqual(y_data, x_data)
self.assertEqual(y_distance, 0.0)
class GraphStateQueryIndex:
def __init__(self):
redis_object = redis.Redis(host='localhost', port=6379, db=0)
redis_storage = RedisStorage(redis_object)
# Get hash config from redis
config = redis_storage.load_hash_configuration('MyHash')
if config is None:
# Config is not existing, create hash from scratch, with 5 projections
self.lshash = RandomBinaryProjections('MyHash', 5)
else:
# Config is existing, create hash with None parameters
self.lshash = RandomBinaryProjections(None, None)
# Apply configuration loaded from redis
self.lshash.apply_config(config)
# print("HERE")
# Create engine for feature space of 100 dimensions and use our hash.
# This will set the dimension of the lshash only the first time, not when
# using the configuration loaded from redis. Use redis storage to store
# buckets.
self.engine = Engine(4, lshashes=[self.lshash], storage=redis_storage)
redis_storage.store_hash_configuration(self.lshash)
def findMatch(self, v):
matches = self.engine.neighbours(v)
return matches
def addVector(self, v, trainingText):
self.engine.store_vector(v, trainingText)
def clearIndex(self):
self.engine.clean_all_buckets()
def clearHashInstance(self, name):
self.engine.clean_buckets(name)
class Reranker():
def __init__(self,params):
self.dataset= params['dataset']
self.image_path = params['database_images']
self.dimension = params['dimension']
self.layer = params['layer']
self.top_n = params['num_rerank']
self.reranking_path = params['reranking_path']
self.REG_BOXES = params['use_regressed_boxes']
self.pooling = params['pooling']
self.stage = params['stage']
self.N_QE = params['N_QE']
self.N_display = params['N_display']
self.class_scores = params['use_class_scores']
self.network_name = params['network_name']
with open(params['frame_list'],'r') as f:
self.database_list = f.read().splitlines()
with open(params['query_list'],'r') as f:
self.query_names = f.read().splitlines()
# Distance type
self.dist_type = params['distance']
# Where to store the rankings
self.rankings_dir = params['rankings_dir']
cfg.TEST.HAS_RPN = True
# self.net = caffe.Net(params['net_proto'], params['net'], caffe.TEST)
self.net = get_network(self.network_name)
self.queries = params['query_names']
# List of queries
if self.pooling is 'sum':
# PCA Models
if self.dataset is 'paris':
self.pca = pickle.load(open(params['pca_model'] + '_oxford.pkl', 'rb'))
elif self.dataset is 'oxford':
self.pca = pickle.load(open(params['pca_model'] + '_paris.pkl', 'rb'))
#lsh
lshash=RandomBinaryProjections('re_rankHash', 1)
self.engine=Engine(self.dimension, lshashes=[lshash])
def extract_feat_image(self, sess, image):
im = cv2.imread(image)
layer_roi = 'pool_5'
scores, boxes, feat = test_ops.im_detect(sess, self.net, layer_roi, im, False, boxes = None)
return feat,boxes,scores
def read_ranking(self,query):
with open(os.path.join(self.rankings_dir,os.path.basename(query.split('_query')[0]) +'.txt'),'r') as f:
ranking = f.read().splitlines()
return ranking
def query_info(self,filename):
'''
For oxford and paris, get query frame and box
'''
data = np.loadtxt(filename, dtype="str")
if self.dataset is 'paris':
query = data[0]
elif self.dataset is 'oxford':
query = data[0].split('oxc1_')[1]
bbx = data[1:].astype(float).astype(int)
if self.dataset is 'paris':
query = os.path.join(self.image_path,query.split('_')[1],query + '.jpg')
elif self.dataset is 'oxford':
query = os.path.join(self.image_path,query + '.jpg')
return query, bbx
def get_query_local_feat(self, sess, query, box=None):
'''
Extract local query feature using bbx
'''
if box is None:
# For paris and oxford
query,bbx = self.query_info(query)
else:
# locations are provided
xmin = box[0]
ymin = box[1]
xmax = box[2]
ymax = box[3]
im = cv2.imread(query)
height = np.shape(im)[0]
width = np.shape(im)[1]
# Forward pass
scores, boxes, feat = test_ops.im_detect(sess, self.net, self.layer, im, True, boxes = None)
# Get conv5 layer
# feat = self.net.blobs[self.layer].data.squeeze()
feat = feat.squeeze()
# Get the image/feature ratio
mult_h = float(np.shape(feat)[1])/height
mult_w = float(np.shape(feat)[2])/width
# Resize the bounding box to feature size
if box is None:
# Adjust query bounding box to feature space
bbx[0] *= mult_w
bbx[2] *= mult_w
bbx[1] *= mult_h
bbx[3] *= mult_h
else:
bbx = [int(math.floor(xmin*mult_w)),int(math.floor(ymin*mult_h)),int(math.ceil(xmax*mult_w)),int(math.ceil(ymax*mult_h))]
# Crop local features with bounding box
local_feat = feat[:,bbx[1]:bbx[3],bbx[0]:bbx[2]]
# sum pool
if self.pooling is 'sum':
local_feat = np.sum(np.sum(local_feat,axis=1),axis=1)
else:
local_feat = np.max(np.max(local_feat,axis=1),axis=1)
return local_feat
def rerank_one_query(self, sess, query,num_queries):
# Init query feat vector
query_feats = np.zeros((self.dimension))
for i in np.arange(num_queries)+1:
query_ = query
query_name = os.path.basename(query).rsplit('_',2)[0]
# Generate query feature and add it to matrix
query_feats += self.get_query_local_feat(sess, query_)
query_feats/=num_queries
query_feats = query_feats.reshape(-1, 1)
if self.stage is 'rerank2nd':
# second stage of reranking. taking N locations at top N ranking as queries...
with open(os.path.join(self.reranking_path,os.path.basename(query.split('_query')[0]) + '.pkl') ,'rb') as f:
distances = pickle.load(f)
locations = pickle.load(f)
frames = pickle.load(f)
class_ids = pickle.load(f)
frames_sorted = np.array(frames)[np.argsort(distances)]
locations_sorted = np.array(locations)[np.argsort(distances)]
for i_qe in range(self.N_QE):
query_feats +=self.get_query_local_feat(sess, frames_sorted[i_qe],locations_sorted[i_qe])
query_feats/=(self.N_QE+1)
query_feats = query_feats.T
query_feats = normalize(query_feats)
if self.pooling is 'sum':
# Apply PCA
query_feats = self.pca.transform(query_feats)
query_feats = normalize(query_feats)
# Read baseline ranking
ranking = self.read_ranking(query)
# Rerank
distances,locations, frames,class_ids = self.rerank_top_n(sess, query_feats,ranking,query_name)
with open(os.path.join(self.reranking_path,os.path.basename(query.split('_query')[0]) + '.pkl') ,'wb') as f:
pickle.dump(distances,f)
pickle.dump(locations,f)
pickle.dump(frames,f)
pickle.dump(class_ids,f)
# Write new ranking to disk
self.write_rankings(query,ranking,distances)
def rerank_top_n(self,sess, query_feats,ranking,query_name):
distances = []
locations = []
frames = []
class_ids = []
#query_feats = query_feats.T
# query class (+1 because class 0 is the background)
cls_ind = np.where(np.array(self.queries) == str(query_name))[0][0] + 1
for im_ in ranking[0:self.N_display]:
if self.dataset is 'paris':
frame_to_read = os.path.join(self.image_path,im_.split('_')[1],im_ + '.jpg')
elif self.dataset is 'oxford':
frame_to_read = os.path.join(self.image_path,im_ + '.jpg')
frames.append(frame_to_read)
# Get features of current element
feats,boxes,scores = self.extract_feat_image(sess, frame_to_read)
# we rank based on class scores
if self.class_scores:
scores = feats[:,cls_ind]
# position with highest score for that class
best_pos = np.argmax(scores)
# array of boxes with higher score for that class
best_box_array = boxes[best_pos,:]
# single box with max score for query class
best_box = best_box_array[4*cls_ind:4*(cls_ind + 1)]
# the actual score
distances.append(np.max(scores))
locations.append(best_box)
class_ids.append(cls_ind)
else:
if self.pooling is 'sum':
# pca transform
feats = np.sum(np.sum(feats,axis=1),axis=1)
feats = normalize(feats)
feats = self.pca.transform(feats)
feats = normalize(feats)
else:
feats = np.max(np.max(feats,axis=1),axis=1)
feats = normalize(feats)
feats = feats.T
query_feats = query_feats.T
query_feats = query_feats.reshape(self.dimension,)
# Compute distances
# dist_array = pairwise_distances(query_feats,feats,self.dist_type, n_jobs=-1)
for fidx in range(feats.shape[1]):
self.engine.store_vector(feats[:,fidx], fidx)
N = self.engine.neighbours(query_feats)
# Select minimum distance
distances.append(N[0][2])
# Array of boxes with min distance
idx = N[0][1]
# Select array of locations with minimum distance
best_box_array = boxes[idx,:]
# Discard background score
scores = scores[:,1:]
# Class ID with max score .
cls_ind = np.argmax(scores[idx,:])
class_ids.append(cls_ind+1)
# Select the best box for the best class
best_box = best_box_array[4*cls_ind:4*(cls_ind + 1)]
locations.append(best_box)
self.engine.clean_all_buckets()
return distances,locations, frames, class_ids
def rerank(self, sess):
iter_ = self.query_names
num_queries = 1
i = 0
for query in iter_:
print "Reranking for query", i, "out of", len(iter_), '...'
i+=1
self.rerank_one_query(sess, query,num_queries)
def write_rankings(self,query,ranking,distances):
if self.class_scores:
new_top_r = list(np.array(ranking[0:self.top_n])[np.argsort(distances)[::-1]])
else:
new_top_r = list(np.array(ranking[0:self.top_n])[np.argsort(distances)])
ranking[0:self.top_n] = new_top_r
savefile = open(os.path.join(self.rankings_dir,os.path.basename(query.split('_query')[0]) +'.txt'),'w')
for res in ranking:
savefile.write(os.path.basename(res).split('.jpg')[0] + '\n')
savefile.close()
