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zoom considering object area

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This commit is contained in:
Josh Hawkins 2023-09-03 14:21:17 -05:00
parent 6f90e35b68
commit 57588a8287
1 changed files with 7 additions and 3 deletions
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8
frigate/ptz/autotrack.py
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@ -282,15 +282,17 @@ class PtzAutoTracker:
# frame width and height # frame width and height
camera_width = camera_config.frame_shape[1] camera_width = camera_config.frame_shape[1]
camera_height = camera_config.frame_shape[0] camera_height = camera_config.frame_shape[0]
camera_area = camera_width * camera_height
bb_left, bb_top, bb_right, bb_bottom = obj.obj_data["box"] bb_left, bb_top, bb_right, bb_bottom = obj.obj_data["box"]
zoom_level = self.ptz_metrics[camera]["ptz_zoom_level"].value zoom_level = self.ptz_metrics[camera]["ptz_zoom_level"].value
# ensure zooming level is in range # ensure zooming level is in range
# if so, check if bounding box is 20% of an edge # if so, check if bounding box is 10% of an edge
# if so, try zooming in, otherwise try zooming out # if so, try zooming in, otherwise try zooming out
edge_threshold = 0.2 edge_threshold = 0.1
area_threshold = 0.6
if 0 < zoom_level <= 1: if 0 < zoom_level <= 1:
if ( if (
@ -298,11 +300,13 @@ class PtzAutoTracker:
and bb_right < (1 - edge_threshold) * camera_width and bb_right < (1 - edge_threshold) * camera_width
and bb_top > edge_threshold * camera_height and bb_top > edge_threshold * camera_height
and bb_bottom < (1 - edge_threshold) * camera_height and bb_bottom < (1 - edge_threshold) * camera_height
and obj.obj_data["area"] < area_threshold * camera_area
): ):
zoom = min(1.0, zoom_level + 0.1) zoom = min(1.0, zoom_level + 0.1)
else: else:
zoom = max(0.0, zoom_level - 0.1) zoom = max(0.0, zoom_level - 0.1)
if zoom != zoom_level:
self._enqueue_move(camera, obj.obj_data["frame_time"], 0, 0, zoom) self._enqueue_move(camera, obj.obj_data["frame_time"], 0, 0, zoom)
def autotrack_object(self, camera, obj): def autotrack_object(self, camera, obj):