Parameters

Every tracker exposes the same parameters in Python and Rust. In Python they are keyword arguments to the tracker class (BYTETRACK, DEEPSORT, OCSORT, SORT); in Rust they are positional arguments to Tracker::new(...). The defaults below are identical across both.

ByteTrack

BYTETRACK(...) / ByteTrack::new(track_thresh, track_buffer, match_thresh, det_thresh)

Parameter	Type	Default	Description
`track_thresh`	float	0.5	High confidence detection threshold
`track_buffer`	int	30	Frames to keep lost tracks alive
`match_thresh`	float	0.8	IoU threshold for matching
`det_thresh`	float	0.6	Minimum detection confidence for initialization

DeepSORT

DEEPSORT(...) / DeepSort::new(extractor, max_age, n_init, max_iou_distance, max_cosine_distance, nn_budget)

Parameter	Type	Default	Description
`max_age`	int	70	Max frames to keep a track without detection
`n_init`	int	3	Consecutive detections needed to confirm a track
`max_iou_distance`	float	0.7	Max IoU distance for association
`max_cosine_distance`	float	0.2	Max cosine distance for Re-ID matching
`nn_budget`	int	100	Max appearance feature library size per track

OC-SORT

OCSORT(...) / OcSort::new(max_age, min_hits, iou_threshold, delta_t, inertia)

Parameter	Type	Default	Description
`max_age`	int	30	Max frames to keep a lost track alive before deletion
`min_hits`	int	3	Consecutive matched frames required to confirm a track
`iou_threshold`	float	0.3	IoU threshold for matching
`delta_t`	int	3	Observation window (frames) for velocity computation
`inertia`	float	0.2	Weight for the direction-consistency cost bonus (OCM)

SORT

SORT(...) / Sort::new(max_age, min_hits, iou_threshold)

Parameter	Type	Default	Description
`max_age`	int	1	Max frames to keep a track without detection
`min_hits`	int	3	Minimum hits before a track is confirmed
`iou_threshold`	float	0.3	IoU threshold for matching