Plenoxels: Radiance Fields without Neural Networks

🤖 Plain-English Summary

We introduce Plenoxels (plenoptic voxels), a systemfor photorealistic view synthesis. On standard, benchmark tasks, Plenoxels are optimized two orders of magnitude faster than Neural Radiance Fields with no loss in visual quality.

🔑 Key Findings

• Plenoxels represent a scene as a sparse 3D grid with spherical harmonics.
• This representation can be optimized from calibrated images via gradient methods and regularization without any neural components.
• On standard, benchmark tasks, Plenoxels are optimized two orders of magnitude faster than Neural Radiance Fields with no loss in visual quality.

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