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make the threshold configurable per region. fixes #31

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blakeblackshear 2019-05-11 07:39:27 -05:00
parent 6900e140d5
commit 3019b0218c
3 changed files with 14 additions and 3 deletions
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3
config/config.yml
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@ -19,11 +19,14 @@ cameras:
x_offset: 0 x_offset: 0
y_offset: 300 y_offset: 300
min_person_area: 5000 min_person_area: 5000
threshold: 0.5
- size: 400 - size: 400
x_offset: 350 x_offset: 350
y_offset: 250 y_offset: 250
min_person_area: 2000 min_person_area: 2000
threshold: 0.5
- size: 400 - size: 400
x_offset: 750 x_offset: 750
y_offset: 250 y_offset: 250
min_person_area: 2000 min_person_area: 2000
threshold: 0.5

6
frigate/object_detection.py
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@ -38,7 +38,7 @@ class PreppedQueueProcessor(threading.Thread):
frame = self.prepped_frame_queue.get() frame = self.prepped_frame_queue.get()
# Actual detection. # Actual detection.
objects = self.engine.DetectWithInputTensor(frame['frame'], threshold=0.5, top_k=3) objects = self.engine.DetectWithInputTensor(frame['frame'], threshold=frame['region_threshold'], top_k=3)
# parse and pass detected objects back to the camera # parse and pass detected objects back to the camera
parsed_objects = [] parsed_objects = []
for obj in objects: for obj in objects:
@ -59,7 +59,7 @@ class PreppedQueueProcessor(threading.Thread):
class FramePrepper(threading.Thread): class FramePrepper(threading.Thread):
def __init__(self, camera_name, shared_frame, frame_time, frame_ready, def __init__(self, camera_name, shared_frame, frame_time, frame_ready,
frame_lock, frame_lock,
region_size, region_x_offset, region_y_offset, region_size, region_x_offset, region_y_offset, region_threshold,
prepped_frame_queue): prepped_frame_queue):
threading.Thread.__init__(self) threading.Thread.__init__(self)
@ -71,6 +71,7 @@ class FramePrepper(threading.Thread):
self.region_size = region_size self.region_size = region_size
self.region_x_offset = region_x_offset self.region_x_offset = region_x_offset
self.region_y_offset = region_y_offset self.region_y_offset = region_y_offset
self.region_threshold = region_threshold
self.prepped_frame_queue = prepped_frame_queue self.prepped_frame_queue = prepped_frame_queue
def run(self): def run(self):
@ -103,6 +104,7 @@ class FramePrepper(threading.Thread):
'frame_time': frame_time, 'frame_time': frame_time,
'frame': frame_expanded.flatten().copy(), 'frame': frame_expanded.flatten().copy(),
'region_size': self.region_size, 'region_size': self.region_size,
'region_threshold': self.region_threshold,
'region_x_offset': self.region_x_offset, 'region_x_offset': self.region_x_offset,
'region_y_offset': self.region_y_offset 'region_y_offset': self.region_y_offset
}) })

8
frigate/video.py
View File

@ -159,13 +159,19 @@ class Camera:
# for each region, create a separate thread to resize the region and prep for detection # for each region, create a separate thread to resize the region and prep for detection
self.detection_prep_threads = [] self.detection_prep_threads = []
for region in self.config['regions']: for region in self.config['regions']:
# set a default threshold of 0.5 if not defined
if not 'threshold' in region:
region['threshold'] = 0.5
if not isinstance(region['threshold'], float):
print('Threshold is not a float. Setting to 0.5 default.')
region['threshold'] = 0.5
self.detection_prep_threads.append(FramePrepper( self.detection_prep_threads.append(FramePrepper(
self.name, self.name,
self.shared_frame_np, self.shared_frame_np,
self.shared_frame_time, self.shared_frame_time,
self.frame_ready, self.frame_ready,
self.frame_lock, self.frame_lock,
region['size'], region['x_offset'], region['y_offset'], region['size'], region['x_offset'], region['y_offset'], region['threshold'],
prepped_frame_queue prepped_frame_queue
)) ))