SAM2Point: Segment Any 3D as Videos in Zero-shot and Promptable Manners
This provides a starting point for promptable 3D segmentation, addressing a domain-specific need for researchers and practitioners in 3D vision.
The paper tackles 3D segmentation by adapting the Segment Anything Model 2 (SAM 2) for zero-shot and promptable segmentation of 3D data, interpreting it as videos without additional training, and demonstrates robust generalization across diverse datasets like Objaverse and KITTI.
We introduce SAM2Point, a preliminary exploration adapting Segment Anything Model 2 (SAM 2) for zero-shot and promptable 3D segmentation. SAM2Point interprets any 3D data as a series of multi-directional videos, and leverages SAM 2 for 3D-space segmentation, without further training or 2D-3D projection. Our framework supports various prompt types, including 3D points, boxes, and masks, and can generalize across diverse scenarios, such as 3D objects, indoor scenes, outdoor environments, and raw sparse LiDAR. Demonstrations on multiple 3D datasets, e.g., Objaverse, S3DIS, ScanNet, Semantic3D, and KITTI, highlight the robust generalization capabilities of SAM2Point. To our best knowledge, we present the most faithful implementation of SAM in 3D, which may serve as a starting point for future research in promptable 3D segmentation. Online Demo: https://huggingface.co/spaces/ZiyuG/SAM2Point . Code: https://github.com/ZiyuGuo99/SAM2Point .