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increase distance threshold constant

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This commit is contained in:
Josh Hawkins 2023-10-03 10:03:12 -05:00
parent e3aeb2f01f
commit 552aaf3d98
1 changed files with 9 additions and 6 deletions
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15
frigate/ptz/autotrack.py
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@ -493,7 +493,7 @@ class PtzAutoTracker:
def _below_distance_threshold(self, camera, obj):
# Returns true if Euclidean distance from object to center of frame is
# less than 15% of the of the larger dimension (width or height) of the frame,
# less than 20% of the of the larger dimension (width or height) of the frame,
# multiplied by a scaling factor for object size.
# Distance is increased if object is not moving to prevent small ptz moves
# Adjusting this percentage slightly lower will effectively cause the camera to move
@ -532,16 +532,19 @@ class PtzAutoTracker:
obj_height = obj.obj_data["box"][3] - obj.obj_data["box"][1]
max_obj = max(obj_width, obj_height)
max_frame = max(camera_config.detect.width, camera_config.detect.height)
max_frame = (
camera_config.detect.width
if max_obj == obj_width
else camera_config.detect.height
)
# larger objects should lower the threshold, smaller objects should raise it
scaling_factor = 1 - (max_obj / max_frame)
# increase distance if object is stationary
if stationary:
scaling_factor *= 2
distance_threshold = 0.15 * (max_frame) * scaling_factor
distance_threshold = (
0.20 * max_frame * (scaling_factor * 2 if stationary else scaling_factor)
)
logger.debug(f"Distance: {centroid_distance}, threshold: {distance_threshold}")