Sa2VA Deep Dive: Marrying SAM-2 and LLaVA for Pixel-Perfect Image & Video Understanding

An end-to-end walk-through that actually works on your GPU 0. Social-media hook (≤120 characters) “One sentence, one GPU, one mask.” Watch Sa2VA turn plain English into pixel-perfect video segmentation—no timeline scrubbing required. 1. A story that hits home (≈200 words) It was 11 p.m. on a Friday when my product manager pinged me: “Can we remove every blue-shirt guy from the keynote video before Monday?” The PR team groaned at the thought of frame-by-frame rotoscoping. Our legacy VOS model choked on the 47-word prompt I wrote. So I brewed coffee, fired up Sa2VA-4B, and typed: python demo.py –text “segment every …