Optimizes a sparse voxel grid of spherical harmonic coefficients with no network at all, matching NeRF quality and demonstrating that the neural part was never the essential ingredient.
supersedescorrects · extends
classifiesspecializes · part-of
substitutes forapproximates · alternative-to
depends onrequires · validates
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correctsfixes a defect in Neural Radiance Fieldsa sparse grid works too; the network was not the point
References
Plenoxels: Radiance Fields without Neural Networks — Fridovich-Keil, Yu, Tancik, Chen, Recht, Kanazawa — 2022 · link