tracker enhancement: GTA for Multi-Object Tracking in Sports

[PrashantDixit0]

GTA MOT in Sports tackles two of the major problems in player tracking:

1. Mix-up errors: one tracklet accidentally containing multiple players
2. Cut-off errors: the same player getting a new ID every time they leave and re-enter the camera view

GTA does this in two stages:

1. Tracklet Splitter: uses ReID embeddings and DBSCAN to split “mixed” tracklets into identity-pure fragments.
2. Tracklet Connector: hierarchically clusters fragments with appearance + temporal + spatial constraints to reconnect long-term identities.

Paper - https://openaccess.thecvf.com/content/ACCV2024W/MLCSA2024/papers/Sun_GTA_Global_Tracklet_Association_for_Multi-Object_Tracking_in_Sports_ACCVW_2024_paper.pdf
Github - https://github.com/sjc042/gta-link