AI Video Post-Production Head Float (A Deterministic Solution for POV Anthropomorphism)
Generative models resist "continuous subtle camera shake" (Veo hits 1/3 / Seedance locks to a static frame) → stop rolling the dice; do post compositing: 10% upscale + triple-frequency sine dynamic crop + segmented amplitude envelope (large when walking / small when standing still / halved when holding breath). Includes zero-dependency script, acceptance parameters, quantitative self-check method, Veo vs Seedance behavior comparison, and five core principles for POV prompts. Tested across 10 rounds and 40+ generations on StoReel; two deliverables passed acceptance.