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---
description: Explore in-depth guidance for using Ultralytics trackers utils matching, including merge_matches, linear_assignment, iou_distance, embedding_distance, fuse_motion, and fuse_score.
keywords: Ultralytics, Trackers Utils, Matching, merge_matches, linear_assignment, iou_distance, embedding_distance, fuse_motion, fuse_score, documentation
---
## merge_matches
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### ::: ultralytics.trackers.utils.matching.merge_matches
< br > < br >
## _indices_to_matches
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### ::: ultralytics.trackers.utils.matching._indices_to_matches
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## linear_assignment
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### ::: ultralytics.trackers.utils.matching.linear_assignment
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## ious
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### ::: ultralytics.trackers.utils.matching.ious
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## iou_distance
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### ::: ultralytics.trackers.utils.matching.iou_distance
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## v_iou_distance
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### ::: ultralytics.trackers.utils.matching.v_iou_distance
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## embedding_distance
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### ::: ultralytics.trackers.utils.matching.embedding_distance
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## gate_cost_matrix
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### ::: ultralytics.trackers.utils.matching.gate_cost_matrix
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## fuse_motion
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### ::: ultralytics.trackers.utils.matching.fuse_motion
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## fuse_iou
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### ::: ultralytics.trackers.utils.matching.fuse_iou
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## fuse_score
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### ::: ultralytics.trackers.utils.matching.fuse_score
< br > < br >
## bbox_ious
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### ::: ultralytics.trackers.utils.matching.bbox_ious
< br > < br >
