Video Generative Models as Geometry Learner
- By directly inheriting a video-generation model's existing knowledge of temporal consistency, it generated depth and normals together with images in a single pass.
- With approximately one hundredth as much training data, it matched existing state-of-the-art discriminative models.
- Unlike previous methods that predicted depth and normals separately, it unified them in a single model, saving checkpoint storage and computation costs.
- A single prediction surpassed all generative baselines, and a lightweight ensemble (5×5, 10 seconds) further improved performance.
- The extracted 3D geometry enabled applications such as image relighting, controllable image generation, and 3D mesh reconstruction.