Lighting in Motion: Spatiotemporal HDR Lighting Estimation
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arXiv
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| Format: | Preprint |
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2025
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| author | Bolduc, Christophe Philip, Julien Ma, Li He, Mingming Debevec, Paul Lalonde, Jean-François |
| author_facet | Bolduc, Christophe Philip, Julien Ma, Li He, Mingming Debevec, Paul Lalonde, Jean-François |
| contents | We present Lighting in Motion (LiMo), a diffusion-based approach to spatiotemporal lighting estimation. LiMo targets both realistic high-frequency detail prediction and accurate illuminance estimation. To account for both, we propose generating a set of mirrored and diffuse spheres at different exposures, based on their 3D positions in the input. Making use of diffusion priors, we fine-tune powerful existing diffusion models on a large-scale customized dataset of indoor and outdoor scenes, paired with spatiotemporal light probes. For accurate spatial conditioning, we demonstrate that depth alone is insufficient and we introduce a new geometric condition to provide the relative position of the scene to the target 3D position. Finally, we combine diffuse and mirror predictions at different exposures into a single HDRI map leveraging differentiable rendering. We thoroughly evaluate our method and design choices to establish LiMo as state-of-the-art for both spatial control and prediction accuracy. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_13597 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Lighting in Motion: Spatiotemporal HDR Lighting Estimation Bolduc, Christophe Philip, Julien Ma, Li He, Mingming Debevec, Paul Lalonde, Jean-François Computer Vision and Pattern Recognition We present Lighting in Motion (LiMo), a diffusion-based approach to spatiotemporal lighting estimation. LiMo targets both realistic high-frequency detail prediction and accurate illuminance estimation. To account for both, we propose generating a set of mirrored and diffuse spheres at different exposures, based on their 3D positions in the input. Making use of diffusion priors, we fine-tune powerful existing diffusion models on a large-scale customized dataset of indoor and outdoor scenes, paired with spatiotemporal light probes. For accurate spatial conditioning, we demonstrate that depth alone is insufficient and we introduce a new geometric condition to provide the relative position of the scene to the target 3D position. Finally, we combine diffuse and mirror predictions at different exposures into a single HDRI map leveraging differentiable rendering. We thoroughly evaluate our method and design choices to establish LiMo as state-of-the-art for both spatial control and prediction accuracy. |
| title | Lighting in Motion: Spatiotemporal HDR Lighting Estimation |
| topic | Computer Vision and Pattern Recognition |
| url | https://arxiv.org/abs/2512.13597 |