The recent Segment Anything Model (SAM) 2 has demonstrated remarkable foundational competence in semantic segmentation, with its memory mechanism and mask decoder further addressing challenges in video tracking and object occlusion, thereby achieving superior results in interactive segmentation for both images and videos. Building upon our previous empirical studies, we further explore the zero-shot segmentation performance of SAM 2 in robot-assisted surgery based on prompts, alongside its robustness against real-world corruption. For static images, we employ two forms of prompts: 1-point and bounding box, while for video sequences, the 1-point prompt is applied to the initial frame. Through extensive experimentation on the MICCAI EndoVis 2017 and EndoVis 2018 benchmarks, SAM 2, when utilizing bounding box prompts, outperforms state-of-the-art (SOTA) methods in comparative evaluations. The results with point prompts also exhibit a substantial enhancement over SAM's capabilities, nearing or even surpassing existing unprompted SOTA methodologies. Besides, SAM 2 demonstrates improved inference speed and less performance degradation against various image corruption. Although slightly unsatisfactory results remain in specific edges or regions, SAM 2's robust adaptability to 1-point prompts underscores its potential for downstream surgical tasks with limited prompt requirements.

本研究针对机器人辅助手术中的视频分割挑战，探讨了Segment Anything Model (SAM) 2的零样本分割性能及其对现实世界干扰的鲁棒性。通过在MICCAI EndoVis 2017和2018基准数据集上的广泛实验，结果显示，SAM 2在使用边界框提示时超越了最先进的方法，并在1点提示的应用中接近或超过了现有的无提示方法，展示了其在有限提示需求下的潜力。 

机器人手术中的SAM 2：外科视频分割的鲁棒性和泛化的实证评估