SPARF: Neural Radiance Fields from Sparse and Noisy Poses

Neural Radiance Field (NeRF) has recently emerged as a powerful representation to synthesize photorealistic novel views. While showing impressive performance, it relies on the availability of dense input views with highly accurate camera poses, thus limiting its application in real-world scenarios....

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Veröffentlicht in:Proceedings (IEEE Computer Society Conference on Computer Vision and Pattern Recognition. Online) S. 4190 - 4200
Hauptverfasser: Truong, Prune, Rakotosaona, Marie-Julie, Manhardt, Fabian, Tombari, Federico
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: IEEE 01.06.2023
Schlagworte:
Cameras
Computer vision
Geometry
Image and video synthesis and generation
Limiting
Pattern recognition
Rendering (computer graphics)
Training
ISSN:1063-6919
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Zusammenfassung:Neural Radiance Field (NeRF) has recently emerged as a powerful representation to synthesize photorealistic novel views. While showing impressive performance, it relies on the availability of dense input views with highly accurate camera poses, thus limiting its application in real-world scenarios. In this work, we introduce Sparse Pose Adjusting Radiance Field (SPARF), to address the challenge of novel-view synthesis given only few wide-baseline input images (as low as 3) with noisy camera poses. Our approach exploits multi-view geometry constraints in order to jointly learn the NeRF and refine the camera poses. By relying on pixel matches extracted between the input views, our multiview correspondence objective enforces the optimized scene and camera poses to converge to a global and geometrically accurate solution. Our depth consistency loss further encourages the reconstructed scene to be consistent from any viewpoint. Our approach sets a new state of the art in the sparse-view regime on multiple challenging datasets.
ISSN:1063-6919
DOI:10.1109/CVPR52729.2023.00408