How to Use SAM 2 for Video Segmentation
Blog post from Roboflow
Segment Anything Model 2 (SAM 2) is a cutting-edge tool for video and image segmentation, improving upon its predecessor with enhanced accuracy and speed. It addresses the challenges of video segmentation, such as object motion and low quality, by requiring fewer interactions and offering faster processing capabilities. SAM 2 supports various model sizes, which differ in inference speed and parameter count, with the largest model providing robust performance on an NVIDIA A100. The model utilizes memory to store object context and generate accurate masks across video frames, allowing for refined predictions through positive and negative point prompts. Despite its advancements, SAM 2 faces limitations in handling shot changes, crowded scenes, and objects with fine details, but it remains a versatile tool with potential applications in diverse fields. The model's release has inspired further research and development within the computer vision community.