Shape-from-Shading by Iterative Fast Marching for Vertical and Oblique Light Sources
نویسندگان
چکیده
Shape-from-Shading (SfS) is a fundamental problem in Computer Vision. Its goal is to solve the image irradiance equation. One prominent solution is the Fast Marching Method of Kimmel & Sethian. When the light source is oblique, Kimmel & Sethian proposed to rotate the image to the light source coordinate system and then solve an ‘almost’ Eikonal equation. This paper presents a new iterative variant of the Fast Marching Method which copes better with images taken under oblique light sources. Robustness is achieved by avoiding the change of coordinate system. The advantages of the proposed method are demonstrated on synthetic and real images.
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