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ByteTrack Parameters

High Confidence Threshold 60%
Detections above this confidence are prioritized for first-stage matching. Higher values = more selective.
Low Confidence Threshold 30%
Minimum confidence for second-stage matching. Helps recover temporarily low-confidence detections of existing tracks.
New Track Threshold 70%
Minimum confidence required to start tracking a new object. Higher values prevent false positives from creating tracks.
Match Threshold (IoU) 0.80
Minimum Intersection-over-Union to match a detection to an existing track. Higher values = stricter matching (0.0-1.0).
Max Age (frames) 30
Number of frames a track can persist without a matched detection before being deleted. Higher = more tolerant of occlusion.
Minimum Hits 3
Number of consecutive detections required before a track is confirmed and displayed. Higher = fewer false positives.

SORT Parameters

IoU Threshold 0.30
Minimum Intersection-over-Union for matching detections to tracks. Higher values = stricter matching.
Max Age (frames) 1
Number of frames a track can exist without a match. SORT uses short max age for fast recovery.
Minimum Hits 3
Number of consecutive detections required before displaying a track. Reduces false positives.

DeepSORT Parameters

IoU Threshold 0.30
Minimum IoU for spatial matching after appearance matching.
Max Cosine Distance 0.20
Maximum appearance feature distance for matching. Lower = more strict appearance matching.
Max Age (frames) 30
Frames a track persists without detection. DeepSORT uses long max age for occlusion handling.
Minimum Hits 3
Consecutive detections needed before confirming a track.
NN Budget 100
Maximum number of appearance features to store per track. Higher = more memory but better matching.

IoU Tracker Parameters

IoU Threshold 0.30
Minimum overlap for matching. Simple frame-to-frame matching without motion prediction.
Max Age (frames) 5
Frames without detection before track deletion. Use low values for simple tracking.
Minimum Hits 1
Detections needed to confirm track. IoU tracker often uses 1 for immediate response.

Centroid Tracker Parameters

Max Distance 0.10
Maximum normalized Euclidean distance between centroids for matching (0.0-1.0).
Max Disappeared (frames) 5
Number of frames an object can be missing before being deregistered.
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