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make stationary_threshold configurable

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This commit is contained in:
Blake Blackshear 2022-02-08 07:40:45 -06:00
parent 5cff849e59
commit 3e90f3032c
4 changed files with 13 additions and 6 deletions
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4
docs/docs/configuration/index.md
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@ -159,9 +159,11 @@ detect:
enabled: True enabled: True
# Optional: Number of frames without a detection before frigate considers an object to be gone. (default: 5x the frame rate) # Optional: Number of frames without a detection before frigate considers an object to be gone. (default: 5x the frame rate)
max_disappeared: 25 max_disappeared: 25
# Optional: Frequency for running detection on stationary objects (default: 0) # Optional: Frequency for running detection on stationary objects (default: shown below)
# When set to 0, object detection will never be run on stationary objects. If set to 10, it will be run on every 10th frame. # When set to 0, object detection will never be run on stationary objects. If set to 10, it will be run on every 10th frame.
stationary_interval: 0 stationary_interval: 0
# Optional: Number of frames without a position change for an object to be considered stationary (default: shown below)
stationary_threshold: 10
# Optional: Object configuration # Optional: Object configuration
# NOTE: Can be overridden at the camera level # NOTE: Can be overridden at the camera level

5
frigate/config.py
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@ -177,6 +177,11 @@ class DetectConfig(FrigateBaseModel):
title="Frame interval for checking stationary objects.", title="Frame interval for checking stationary objects.",
ge=0, ge=0,
) )
stationary_threshold: Optional[int] = Field(
default=10,
title="Number of frames without a position change for an object to be considered stationary",
ge=1,
)
class FilterConfig(FrigateBaseModel): class FilterConfig(FrigateBaseModel):

6
frigate/objects.py
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@ -48,7 +48,7 @@ class ObjectTracker:
del self.tracked_objects[id] del self.tracked_objects[id]
del self.disappeared[id] del self.disappeared[id]
# tracks the current position of the object based on the last 10 bounding boxes # tracks the current position of the object based on the last N bounding boxes
# returns False if the object has moved outside its previous position # returns False if the object has moved outside its previous position
def update_position(self, id, box): def update_position(self, id, box):
position = self.positions[id] position = self.positions[id]
@ -78,9 +78,9 @@ class ObjectTracker:
} }
return False return False
# if there are less than 10 entries for the position, add the bounding box # if there are less than stationary_threshold entries for the position, add the bounding box
# and recompute the position box # and recompute the position box
if len(position["xmins"]) < 10: if len(position["xmins"]) < self.detect_config.stationary_threshold:
position["xmins"].append(xmin) position["xmins"].append(xmin)
position["ymins"].append(ymin) position["ymins"].append(ymin)
position["xmaxs"].append(xmax) position["xmaxs"].append(xmax)

4
frigate/video.py
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@ -507,8 +507,8 @@ def process_frames(
stationary_object_ids = [ stationary_object_ids = [
obj["id"] obj["id"]
for obj in object_tracker.tracked_objects.values() for obj in object_tracker.tracked_objects.values()
# if there hasn't been motion for 10 frames # if there hasn't been motion for N frames
if obj["motionless_count"] >= 10 if obj["motionless_count"] >= detect_config.stationary_threshold
# and it isn't due for a periodic check # and it isn't due for a periodic check
and ( and (
detect_config.stationary_interval == 0 detect_config.stationary_interval == 0