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perf(eval): simplify fixed distractor membership #576

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perf(eval): simplify fixed distractor membership #576

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8 changes: 7 additions & 1 deletion src/trackers/io/mot.py
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Original file line number Diff line number Diff line change
Expand Up @@ -83,7 +83,13 @@ def _distractor_ground_truth_mask(frame_data: _MOTFrameData) -> NDArray[np.bool_
Returns:
Boolean array of shape `(N,)`, `True` for distractor-class rows.
"""
return np.isin(frame_data.classes, _DISTRACTOR_CLASSES)
classes = frame_data.classes
return (
(classes == _DISTRACTOR_CLASSES[0])
| (classes == _DISTRACTOR_CLASSES[1])
| (classes == _DISTRACTOR_CLASSES[2])
| (classes == _DISTRACTOR_CLASSES[3])
)


def _mot_frame_to_detections(frame_data: _MOTFrameData) -> sv.Detections:
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