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require a minimum of 3 consecutive motion frames to try and reduce false positives from rain

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blakeblackshear 2019-02-16 15:05:58 -06:00
parent 225f434718
commit 861539e8b5
1 changed files with 10 additions and 4 deletions
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12
detect_objects.py
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@ -396,6 +396,7 @@ def detect_motion(shared_arr, shared_frame_time, ready_for_frame, shared_motion,
avg_frame = None avg_frame = None
last_motion = -1 last_motion = -1
frame_time = 0.0 frame_time = 0.0
motion_frames = 0
while True: while True:
now = datetime.datetime.now().timestamp() now = datetime.datetime.now().timestamp()
# if it has been long enough since the last motion, clear the flag # if it has been long enough since the last motion, clear the flag
@ -459,11 +460,16 @@ def detect_motion(shared_arr, shared_frame_time, ready_for_frame, shared_motion,
# loop over the contours # loop over the contours
for c in cnts: for c in cnts:
# if the contour is big enough report motion # if the contour is big enough, count it as motion
if cv2.contourArea(c) > min_motion_area: contour_area = cv2.contourArea(c)
last_motion = now if contour_area > min_motion_area:
motion_frames += 1
# if there have been enough consecutive motion frames, report motion
if motion_frames >= 3:
shared_motion.value = 1 shared_motion.value = 1
last_motion = now
break break
motion_frames = 0
if __name__ == '__main__': if __name__ == '__main__':
mp.freeze_support() mp.freeze_support()