ReSurgSAM2: Referring Segment Anything in Surgical Video via Credible Long-term Tracking

TL;DR

ReSurgSAM2 is a novel surgical video segmentation framework that combines advanced detection and long-term tracking, significantly improving accuracy and efficiency for real-time surgical scene analysis.

Contribution

It introduces a two-stage framework with a new detection method and a diversity-driven memory for reliable long-term tracking in surgical videos.

Findings

Achieves real-time performance at 61.2 FPS.

Significantly improves segmentation accuracy over existing methods.

Demonstrates robustness in complex surgical scenarios.

Abstract

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.