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Fisheye-GS: Lightweight and Extensible Gaussian Splatting Module for Fisheye Cameras

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arxiv 2409.04751 v2 pith:B62KJWJR submitted 2024-09-07 cs.CV cs.GR

Zimu Liao , Siyan Chen , Rong Fu , Yi Wang , Zhongling Su , Hao Luo , Li Ma , Linning Xu
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Bo Dai Hengjie Li Zhilin Pei Xingcheng Zhang
This is my paper · ORCID
classification cs.CVcs.GR
keywords fisheyeprojectionsplattingapproachcameracameraschallengesdifferent
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Recently, 3D Gaussian Splatting (3DGS) has garnered attention for its high fidelity and real-time rendering. However, adapting 3DGS to different camera models, particularly fisheye lenses, poses challenges due to the unique 3D to 2D projection calculation. Additionally, there are inefficiencies in the tile-based splatting, especially for the extreme curvature and wide field of view of fisheye lenses, which are crucial for its broader real-life applications. To tackle these challenges, we introduce Fisheye-GS.This innovative method recalculates the projection transformation and its gradients for fisheye cameras. Our approach can be seamlessly integrated as a module into other efficient 3D rendering methods, emphasizing its extensibility, lightweight nature, and modular design. Since we only modified the projection component, it can also be easily adapted for use with different camera models. Compared to methods that train after undistortion, our approach demonstrates a clear improvement in visual quality.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Gaussian Splatting for Efficient Satellite Image Photogrammetry

    cs.CV 2024-12 conditional novelty 7.0 of 10

    A Gaussian-splatting pipeline with affine satellite cameras, shadow mapping, and three regularizers reconstructs terrain with accuracy close to EO-NeRF in about 300x less training time.

  2. 3DGUT: Enabling Distorted Cameras and Secondary Rays in Gaussian Splatting

    cs.GR 2024-12 conditional novelty 6.0 of 10

    Replacing EWA splatting's linearized projection with an Unscented Transform lets 3DGS handle fisheye and rolling-shutter cameras and enables hybrid rasterization plus traced secondary rays.

  3. NeISF++: Neural Incident Stokes Field for Polarized Inverse Rendering of Conductors and Dielectrics

    cs.CV 2024-11 conditional novelty 6.0 of 10

    NeISF++ generalizes the dielectric-only NeISF polarized inverse renderer to conductors by adding a complex-refractive-index Fresnel term and a DoLP-based geometry initialization, improving metal and dielectric reconstruction.

  4. DirectFisheye-GS: Enabling Native Fisheye Input in Gaussian Splatting with Cross-View Joint Optimization

    cs.CV 2026-04 conditional novelty 5.5 of 10

    Native fisheye projection inside 3DGS plus feature-overlap cross-view joint optimization matches or beats prior fisheye and pinhole Gaussian methods on public datasets.

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