Block-NeRF: Scalable Large Scene Neural View Synthesis

We present Block-NeRF, a variant of Neural Radiance Fields that can represent large-scale environments. Specifically, we demonstrate that when scaling NeRF to render city-scale scenes spanning multiple blocks, it is vital to de-compose the scene into individually trained NeRFs. This decomposition de...

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Bibliographic Details
Published in:Proceedings (IEEE Computer Society Conference on Computer Vision and Pattern Recognition. Online) pp. 8238 - 8248
Main Authors: Tancik, Matthew, Casser, Vincent, Yan, Xinchen, Pradhan, Sabeek, Mildenhall, Ben P., Srinivasan, Pratul, Barron, Jonathan T., Kretzschmar, Henrik
Format: Conference Proceeding
Language:English
Published: IEEE 01.06.2022
Subjects:
3D from multi-view and sensors; Photogrammetry and remote sensing; Vision applications and systems
Buildings
Computer architecture
Computer vision
Image reconstruction
Pattern recognition
Rendering (computer graphics)
Transient analysis
ISSN:1063-6919
Online Access:Get full text
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Summary:We present Block-NeRF, a variant of Neural Radiance Fields that can represent large-scale environments. Specifically, we demonstrate that when scaling NeRF to render city-scale scenes spanning multiple blocks, it is vital to de-compose the scene into individually trained NeRFs. This decomposition decouples rendering time from scene size, enables rendering to scale to arbitrarily large environments, and allows per-block updates of the environment. We adopt several architectural changes to make NeRF robust to data captured over months under different environmental conditions. We add appearance embeddings, learned pose refinement, and controllable exposure to each individual NeRF, and introduce a procedure for aligning appearance between adjacent NeRFs so that they can be seamlessly combined. We build a grid of Block-NeRFs from 2.8 million images to create the largest neural scene representation to date, capable of rendering an entire neighborhood of San Francisco.
ISSN:1063-6919
DOI:10.1109/CVPR52688.2022.00807