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Make motion detection less sensitive by ignoring minor (<5%) changes.

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This commit is contained in:
p-boon 2025-02-25 14:35:34 +01:00
parent 7d0d5efac5
commit 3432907c89
2 changed files with 8 additions and 4 deletions
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9
frigate/motion/improved_motion.py
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@ -121,13 +121,13 @@ class ImprovedMotionDetector(MotionDetector):
if self.save_images: if self.save_images:
contrasted_saved = resized_frame.copy() contrasted_saved = resized_frame.copy()
resized_frame = gaussian_filter(resized_frame, sigma=1, radius=self.blur_radius)
# mask frame # mask frame
# this has to come after contrast improvement # this has to come after contrast improvement and masking to avoid the mask bleeding into non-masked area.
# Setting masked pixels to zero, to match the average frame at startup # Setting masked pixels to zero, to match the average frame at startup
resized_frame[self.mask] = [0] resized_frame[self.mask] = [0]
resized_frame = gaussian_filter(resized_frame, sigma=1, radius=self.blur_radius)
if self.save_images: if self.save_images:
blurred_saved = resized_frame.copy() blurred_saved = resized_frame.copy()
@ -194,10 +194,11 @@ class ImprovedMotionDetector(MotionDetector):
# once the motion is less than 5% and the number of contours is < 4, assume its calibrated # once the motion is less than 5% and the number of contours is < 4, assume its calibrated
if pct_motion < 0.05 and len(motion_boxes) <= 4: if pct_motion < 0.05 and len(motion_boxes) <= 4:
motion_boxes = [] # ignore small movements
self.calibrating = False self.calibrating = False
# if calibrating or the motion contours are > 80% of the image area (lightning, ir, ptz) recalibrate # if calibrating or the motion contours are > 80% of the image area (lightning, ir, ptz) recalibrate
if self.calibrating or pct_motion > self.config.lightning_threshold: if not self.calibrating and pct_motion > self.config.lightning_threshold:
self.calibrating = True self.calibrating = True
if self.save_images: if self.save_images:

3
frigate/test/test_motion.py
View File

@ -51,6 +51,9 @@ class TestMotion(unittest.TestCase):
default_motion_config, default_motion_config,
[[190, 307]], [[190, 307]],
), ),
TestMotionVideo(
"testdata/test_motion_video-3.mp4", default_mask, default_motion_config
),
] ]
def get_motion_detector(self, test_clip): def get_motion_detector(self, test_clip):