3iGS: factorised tensorial illumination for 3D Gaussian splatting
The use of 3D Gaussians as representation of radiance fields has enabled high quality novel view synthesis at real-time rendering speed. However, the choice of optimising the outgoing radiance of each Gaussian independently as spherical harmonics results in unsatisfactory view dependent effects. In...
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sg-ntu-dr.10356-1829152025-03-09T03:24:37Z 3iGS: factorised tensorial illumination for 3D Gaussian splatting Tang, Zhe Jun Cham, Tat-Jen College of Computing and Data Science 18th European Conference on Computer Vision (ECCV 2024) S-Lab Computer and Information Science 3D Gaussians Computer graphics The use of 3D Gaussians as representation of radiance fields has enabled high quality novel view synthesis at real-time rendering speed. However, the choice of optimising the outgoing radiance of each Gaussian independently as spherical harmonics results in unsatisfactory view dependent effects. In response to these limitations, our work, Factorised Tensorial Illumination for 3D Gaussian Splatting, or 3iGS, improves upon 3D Gaussian Splatting (3DGS) rendering quality. Instead of optimising a single outgoing radiance parameter, 3iGS enhances 3DGS view-dependent effects by expressing the outgoing radiance as a function of a local illumination field and Bidirectional Reflectance Distribution Function (BRDF) features. We optimise a continuous incident illumination field through a Tensorial Factorisation representation, while separately fine-tuning the BRDF features of each 3D Gaussian relative to this illumination field. Our methodology significantly enhances the rendering quality of specular view-dependent effects of 3DGS, while maintaining rapid training and rendering speeds. Nanyang Technological University This study is supported under the RIE2020 Industry Alignment Fund - Industry Collaboration Projects (IAF-ICP) Funding initiative, as well as cash and in-kind collaboration from the industry partner(s). 2025-03-09T03:24:37Z 2025-03-09T03:24:37Z 2025 Conference Paper Tang, Z. J. & Cham, T. (2025). 3iGS: factorised tensorial illumination for 3D Gaussian splatting. 18th European Conference on Computer Vision (ECCV 2024), LNCS 15072, 143-159. https://dx.doi.org/10.1007/978-3-031-72630-9_9 9783031726293 https://hdl.handle.net/10356/182915 10.1007/978-3-031-72630-9_9 2-s2.0-85212978530 LNCS 15072 143 159 en © 2025 The Author(s), under exclusive license to Springer Nature Switzerland AG. All rights reserved. |
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Computer and Information Science 3D Gaussians Computer graphics Tang, Zhe Jun Cham, Tat-Jen 3iGS: factorised tensorial illumination for 3D Gaussian splatting |
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The use of 3D Gaussians as representation of radiance fields has enabled high quality novel view synthesis at real-time rendering speed. However, the choice of optimising the outgoing radiance of each Gaussian independently as spherical harmonics results in unsatisfactory view dependent effects. In response to these limitations, our work, Factorised Tensorial Illumination for 3D Gaussian Splatting, or 3iGS, improves upon 3D Gaussian Splatting (3DGS) rendering quality. Instead of optimising a single outgoing radiance parameter, 3iGS enhances 3DGS view-dependent effects by expressing the outgoing radiance as a function of a local illumination field and Bidirectional Reflectance Distribution Function (BRDF) features. We optimise a continuous incident illumination field through a Tensorial Factorisation representation, while separately fine-tuning the BRDF features of each 3D Gaussian relative to this illumination field. Our methodology significantly enhances the rendering quality of specular view-dependent effects of 3DGS, while maintaining rapid training and rendering speeds. |
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College of Computing and Data Science |
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College of Computing and Data Science Tang, Zhe Jun Cham, Tat-Jen |
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Conference or Workshop Item |
author |
Tang, Zhe Jun Cham, Tat-Jen |
author_sort |
Tang, Zhe Jun |
title |
3iGS: factorised tensorial illumination for 3D Gaussian splatting |
title_short |
3iGS: factorised tensorial illumination for 3D Gaussian splatting |
title_full |
3iGS: factorised tensorial illumination for 3D Gaussian splatting |
title_fullStr |
3iGS: factorised tensorial illumination for 3D Gaussian splatting |
title_full_unstemmed |
3iGS: factorised tensorial illumination for 3D Gaussian splatting |
title_sort |
3igs: factorised tensorial illumination for 3d gaussian splatting |
publishDate |
2025 |
url |
https://hdl.handle.net/10356/182915 |
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1826362242830958592 |