S.Y. Yuen, Y.Y. Tsui, Y.W. Leung, and R.M.M. Chen (PRC)
Shape from shading, perspective projection, perspective images, fast marching method.
The fast marching method has recently been applied to the shape from shading problem for orthographic projection [4]. Unlike many previous researches, the method is stable and monotone, and offer a well posed solution to the shape from shading problem. In this paper, the method is extended to perspective projection using a model that accounts for the foreshortening effect of perspective projection. Experimental results on synthetic images are also reported. A simple and practical method is also presented which generates realistic synthetic testing images under perspective projection.
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