I built an open-source, local-first video polygon annotation app powered by Meta's Segment Anything 2 (SAM 2.1)

Automated excerpt

I built SAM2 Video Polygon Annotator, an open-source, local-first desktop application designed to streamline the dataset preparation pipeline from raw video footage to production-ready computer vision datasets. Instead of drawing tedious point-by-point polygons, it leverages Meta's Segment Anything 2 (SAM 2 / SAM 2. 1 Hiera) to generate clean, sub-pixel polygon masks in milliseconds using zero-shot positive/negative points or bounding boxes. 🔒 100% Local & Private: Runs completely on your workstation. No cloud uploads, no subscriptions. ⚡ Zero-Shot Prompting: Click positive (+) points on objects, negative (-) points to exclude background bleed, or draw bounding boxes for instant contour segmentation.

Selected automatically from source text; not independently written or fact-checked. Read the original for full context.