Local surface curvature analysis based on reflection estimation

Qinglin Lu; Olivier Laligant; Eric Fauvet; Anastasia Zakharova

doi:10.1117/12.2196932

6 July 2015 Local surface curvature analysis based on reflection estimation

Qinglin Lu, Olivier Laligant, Eric Fauvet, Anastasia Zakharova

Proceedings Volume 9631, Seventh International Conference on Digital Image Processing (ICDIP 2015); 96310K (2015) https://doi.org/10.1117/12.2196932
Event: Seventh International Conference on Digital Image Processing (ICDIP15), 2015, Los Angeles, United States

Abstract

In this paper, we propose a novel reflection based method to estimate the local orientation of a specular surface. For a calibrated scene with a fixed light band, the band is reflected by the surface to the image plane of a camera. Then the local geometry between the surface and reflected band is estimated. Firstly, in order to find the relationship relying the object position, the object surface orientation and the band reflection, we study the fundamental theory of the geometry between a specular mirror surface and a band source. Then we extend our approach to the spherical surface with arbitrary curvature. Experiments are conducted with mirror surface and spherical surface. Results show that our method is able to obtain the local surface orientation merely by measuring the displacement and the form of the reflection.

Citation Download Citation

Qinglin Lu, Olivier Laligant, Eric Fauvet, and Anastasia Zakharova "Local surface curvature analysis based on reflection estimation", Proc. SPIE 9631, Seventh International Conference on Digital Image Processing (ICDIP 2015), 96310K (6 July 2015); https://doi.org/10.1117/12.2196932

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