NVIDIA Research · 3D Generation
ArtiFixer
Two-stage generative pipeline that fixes 3D reconstruction artifacts in under-observed regions by finetuning a bidirectional video diffusion model with an opacity-mixing strategy, then distilling it into a causal autoregressive model generating hundreds of frames per pass; 1-3 dB PSNR gains over SOTA on MipNeRF 360 and DL3DV-10K.
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