diffusion-free

NAMVIS proposes a diffusion-free framework that reformulates sparse-view multi-view image synthesis as geometry-conditioned next-scale autoregression, using Multi-scale Projective Pose Encoding to anchor generation to camera geometry. It outperforms diffusion baselines on Objaverse, GSO, and OmniObject3D in PSNR/SSIM/LPIPS while running over 3x faster.