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A non-Lambertian photometric stereo under perspective projection

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Abstract

Under the perspective projection assumption, non-Lambertian photometric stereo is a highly non-linear problem. In this study, we present an optimized framework for reconstructing the surface normal and depth with non-Lambertian reflection models under perspective projection. By decomposing the images into diffuse and specular components, we compute the surface normal and reflectance simultaneously. We also propose a variational formulation that is robust and useful for surface reconstruction. The experiments show that our method accurately reconstructs both the surface shape and reflectance of colorful objects with non-Lambertian surfaces.

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Correspondence to Chang-yu Diao.

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Project supported by the Technological Program of Cultural Relics Preservation of Zhejiang Province, China, the Key Research and Development Program of Zhejiang Province, China (No. 2018C03051), and the National Standard Development Program of Cultural Relics Protection of China (No. 581250-T0170B)

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Min LI, Chang-yu DIAO, Duan-qing XU, Wei XING, and Dong-ming LU declare that they have no conflict of interest.

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Li, M., Diao, Cy., Xu, Dq. et al. A non-Lambertian photometric stereo under perspective projection. Front Inform Technol Electron Eng 21, 1191–1205 (2020). https://doi.org/10.1631/FITEE.1900156

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  • DOI: https://doi.org/10.1631/FITEE.1900156

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