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arXiv · 2601.12666

Near-Light Color Photometric Stereo for Mono-Chromatic Non-Lambertian Surfaces

Zonglin Li·Jieji Ren·Shuangfan Zhou·Heng Guo·Jinnuo Zhang·Jiang Zhou·Boxin Shi·Zhanyu Ma·Guoying Gu
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Abstract

Color photometric stereo enables single-shot surface reconstruction, extending conventional photometric stereo that requires multiple images of a static scene under varying illumination to dynamic scenarios. However, most existing approaches assume ideal distant lighting and Lambertian reflectance, leaving more practical near-light conditions and non-Lambertian surfaces underexplored. To overcome this limitation, we propose a framework that leverages neural implicit representations for depth and BRDF modeling under the assumption of mono-chromaticity (uniform chromaticity and homogeneous material), which alleviates the inherent ill-posedness of color photometric stereo and allows for detailed surface recovery from just one image. Furthermore, we design a compact optical tactile sensor to validate our approach. Experiments on both synthetic and real-world datasets demonstrate that our method achieves accurate and robust surface reconstruction.

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Zonglin Li, Jieji Ren, Shuangfan Zhou, Heng Guo, Jinnuo Zhang, Jiang Zhou, Boxin Shi, Zhanyu Ma, Guoying Gu. 2026-01-19. Near-Light Color Photometric Stereo for Mono-Chromatic Non-Lambertian Surfaces. https://arxiv.org/abs/2601.12666

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