Physics

Mathematics

Voxel

Politics

Optics

Geodesy

Mathematical analysis

Political science

Benchmark (surveying)

Artificial intelligence

Geography

Set (abstract data type)

Regularization (linguistics)

Grid

Programming language

Radiance

Geometry

Representation (politics)

Code (set theory)

Visualization

Spherical harmonics

Computer science

Computer vision

Artificial neural network

We introduce Plenoxels (plenoptic voxels), a systemfor photorealistic view synthesis. 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. For video and code, please see https://alexyu.net/plenoxels.

Plenoxels: Radiance Fields without Neural Networks