Neural Sparse Voxel Fields

Understand

Photo-realistic free-viewpoint rendering of real-world scenes using classical computer graphics techniques is challenging, because it requires the difficult step of capturing detailed appearance and geometry models.

• Recent studies have demonstrated promising results by learning scene representations that implicitly encode both geometry and appearance without 3D supervision.
• However, existing approaches in practice often show blurry renderings caused by the limited network capacity or the difficulty in finding accurate intersections of camera rays with the scene geometry.
• Synthesizing high-resolution imagery from these representations often requires time-consuming optical ray marching.