ReSurgSAM2: Referring Segment Anything in Surgical Video via Credible
  Long-term Tracking
Authors: name: Haofeng Liu, name: Mingqi Gao, name: Xuxiao Luo, name: Ziyue Wang, name: Guanyi Qin, name: Junde Wu, name: Yueming Jin

Surgical scene segmentation is critical in computer-assisted surgery and is
vital for enhancing surgical quality and patient outcomes. Recently, referring
surgical segmentation is emerging, given its advantage of providing surgeons
with an interactive experience to segment the target object. However, existing
methods are limited by low efficiency and short-term tracking, hindering their
applicability in complex real-world surgical scenarios. In this paper, we
introduce ReSurgSAM2, a two-stage surgical referring segmentation framework
that leverages Segment Anything Model 2 to perform text-referred target
detection, followed by tracking with reliable initial frame identification and
diversity-driven long-term memory. For the detection stage, we propose a
cross-modal spatial-temporal Mamba to generate precise detection and
segmentation results. Based on these results, our credible initial frame
selection strategy identifies the reliable frame for the subsequent tracking.
Upon selecting the initial frame, our method transitions to the tracking stage,
where it incorporates a diversity-driven memory mechanism that maintains a
credible and diverse memory bank, ensuring consistent long-term tracking.
Extensive experiments demonstrate that ReSurgSAM2 achieves substantial
improvements in accuracy and efficiency compared to existing methods, operating
in real-time at 61.2 FPS. Our code and datasets will be available at
https://github.com/jinlab-imvr/ReSurgSAM2.