Add dancetrack support (#2052)

Author: mikel-brostrom

README.md

@@ -166,7 +166,7 @@ Evaluate a combination of detector, tracking method and ReID model on standard M
 $ boxmot eval --yolo-model yolox_x_ablation.pt --reid-model lmbn_n_duke.pt --tracking-method boosttrack --source MOT17-ablation --verbose 
 # MOT20 results
 $ boxmot eval --yolo-model yolox_x_ablation.pt --reid-model lmbn_n_duke.pt --tracking-method boosttrack --source MOT20-ablation --verbose 
-# Bytetrack results
+# Dancetrack results
 $ boxmot eval --yolo-model yolox_x_ablation.pt --reid-model lmbn_n_duke.pt --tracking-method boosttrack --source dancetrack-ablation --verbose 
 # metrics on custom dataset
 $ boxmot eval --yolo-model yolov8n.pt --reid-model osnet_x0_25_msmt17.pt --tracking-method deepocsort  --source ./assets/MOT17-mini/train --verbose

boxmot/engine/val.py

@@ -61,7 +61,7 @@ def eval_init(args,
     download_trackeval(dest=trackeval_dest, branch=branch, overwrite=overwrite)
 
     # 2) if doing MOT17/20-ablation, pull down the dataset and rewire args.source/split
-    if args.source in ("MOT17-ablation", "MOT20-ablation", "dancetrack"):
+    if args.source in ("MOT17-ablation", "MOT20-ablation", "dancetrack-ablation"):
         cfg = load_dataset_cfg(str(args.source))
         download_eval_data(
             runs_url=cfg["download"]["dataset_url"],