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add zoom factor and catch motion exception

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This commit is contained in:
Josh Hawkins 2023-09-27 21:22:54 -05:00
parent d11c1a2066
commit 49aa1b5da5
1 changed files with 18 additions and 6 deletions
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24
frigate/ptz/autotrack.py
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@ -105,9 +105,16 @@ class PtzMotionEstimator:
# Norfair estimator function needs color so it can convert it right back to gray
frame = cv2.cvtColor(frame, cv2.COLOR_GRAY2BGRA)
self.coord_transformations = self.norfair_motion_estimator.update(
frame, mask
)
try:
self.coord_transformations = self.norfair_motion_estimator.update(
frame, mask
)
except:
# sometimes opencv can't find enough features in the image to find homography, so catch this error
logger.error(
f"Autotracker: motion estimator couldn't find homography for {camera_name} at frame time {frame_time}"
)
self.coord_transformations = None
self.frame_manager.close(frame_id)
@ -545,7 +552,10 @@ class PtzAutoTracker:
if camera_config.onvif.autotracking.zooming == ZoomingModeEnum.relative:
# relative zooming concurrently with pan/tilt
zoom = obj.obj_data["area"] / (camera_width * camera_height)
zoom_factor = 30
zoom = max(
obj.obj_data["area"] / (camera_width * camera_height) * zoom_factor, 1
)
# test if we need to zoom out
if not self._should_zoom_in(
@ -557,12 +567,14 @@ class PtzAutoTracker:
):
zoom = -(1 - zoom)
# don't make small movements if area hasn't changed significantly
# don't make small movements to zoom in if area hasn't changed significantly
# but always zoom out if necessary
if (
"area" in obj.previous
and abs(obj.obj_data["area"] - obj.previous["area"])
/ obj.obj_data["area"]
< 0.1
< 0.2
and zoom > 0
):
zoom = 0
else: