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NeRF

2021/12/17 by Ben Mildenhall, Pratul P. Srinivasan, Matthew Tancik +3 · 6,079 citations
Computer Science · Engineering · Mathematics · #3D Shape Modeling and Analysis #Advanced Vision and Imaging #Artificial intelligence #Artificial neural network #Computer Graphics and Visualization Techniques #Computer graphics (images) #Computer science #Computer vision #Differentiable function #Image-based modeling and rendering #Mathematics #Optics #Physics #Radiance #Rendering (computer graphics) #View synthesis #Volume rendering

paper · pdf · doi:10.1145/3503250

published in Communications of the ACM 65(1), 99-106 (Association for Computing Machinery)

openalex publication_date 2021/12/17 · openalex created_date 2021/12/31 · openalex updated_date 2026/08/05

Abstract

We present a method that achieves state-of-the-art results for synthesizing novel views of complex scenes by optimizing an underlying continuous volumetric scene function using a sparse set of input views. Our algorithm represents a scene using a fully connected (nonconvolutional) deep network, whose input is a single continuous 5D coordinate (spatial location ( x , y , z ) and viewing direction ( θ, ϕ )) and whose output is the volume density and view-dependent emitted radiance at that spatial location. We synthesize views by querying 5D coordinates along camera rays and use classic volume rendering techniques to project the output colors and densities into an image. Because volume rendering is naturally differentiable, the only input required to optimize our representation is a set of images with known camera poses. We describe how to effectively optimize neural radiance fields to render photorealistic novel views of scenes with complicated geometry and appearance, and demonstrate results that outperform prior work on neural rendering and view synthesis.

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