Some Illumination Models for Industrial Applications of Photometric Stereo

Yvain Quéau (1) , Jean-Denis Durou (1)

1 IRIT-REVA - Real Expression Artificial Life

Among the possible sources of error in 3D-reconstruction using the photometric stereo technique, lighting modelling is often neglected, though it can create a dramatic large-scale bias. In this paper, after recalling the physical definition of a primary Lambertian source (isotropic lightings), we show how to derive a lighting model for several real-world scenarios, including directional lightings, nearby sources and extended planar illuminants. Finally, we show how to calibrate general spatially-varying lightings within a plane, in the case where explicitely modelling the lightings would be tedious.

Mots clés: extended planar illuminants; lighting; light field sampling; Photometric stereo; nearby punctual sources; illumination models

Domaines: Vision par ordinateur et reconnaissance de formes [cs.CV]

Yvain Quéau, Jean-Denis Durou. Some Illumination Models for Industrial Applications of Photometric Stereo. The International Conference on Quality Control by Artificial Vision 2015, Jun 2015, Le Creusot, France. pp.95341C, ⟨10.1117/12.2182921⟩. ⟨hal-02118579⟩