titleSAM-MT: Real-Time Interactive Multi-Target Video Segmentation
authorsRuiqi Shen, Chang Liu, Henghui Ding
date2026-07-09
venuearXiv (preprint, not peer reviewed)
idarXiv:2607.08688
affiliationFudanCVL
upvotes7 (Hugging Face Daily Papers, 2026-11-01)
linksabs pdf hf code
abstractModern Video Object Segmentation (VOS) involves tracking and segmenting user-specified targets. While recent approaches have achieved remarkable performance in single-target scenarios, extending them to multi-target settings typically involves replicating the single-target processing for each individual object, resulting in reduced frame rates (FPS) with unbounded latency as target count increases. Built upon Segment Anything 2 (SAM2), we propose SAM-MT, which addresses this by transforming the model into an interactive framework for real-time Multi-Target video segmentation. SAM-MT uses explicit queries to represent different individual targets, in parallel with a shared representation for global context. It employs decoupled masked attention to keep individual identities distinct from cross-target interference, and sparse memory for stable temporal evolution, along with specialized strategies for occlusion handling and overlap prevention. SAM-MT successfully decouples latency from the number of targets, achieving real-time speed on par with single-target baselines (>36 FPS for 10 targets) while maintaining SAM2's robust video segmentation performance.

cite

@misc{shen2026sam,
  title={SAM-MT: Real-Time Interactive Multi-Target Video Segmentation},
  author={Ruiqi Shen and Chang Liu and Henghui Ding},
  year={2026},
  eprint={2607.08688},
  archivePrefix={arXiv},
  url={https://arxiv.org/abs/2607.08688}
}