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feat(ByteTrack): Allow ByteTrack to track detection without class ids #1618

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Oct 31, 2024
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feat(ByteTrack): Allow ByteTrack to track detection without class ids #1618

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7 changes: 6 additions & 1 deletion supervision/tracker/byte_tracker/core.py
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Original file line number Diff line number Diff line change
Expand Up @@ -276,11 +276,16 @@ def callback(frame: np.ndarray, index: int) -> np.ndarray:
```
"""

num_rows = detections.xyxy.shape[0]
class_ids = np.full(num_rows, -5)
if detections.class_id is not None:
class_ids = detections.class_id

tensors = np.hstack(
(
detections.xyxy,
detections.confidence[:, np.newaxis],
detections.class_id[:, np.newaxis],
class_ids[:, np.newaxis],
)
)
tracks = self.update_with_tensors(tensors=tensors)
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