An application of shape from shading

Shape from shading (SFS) is an important domain in computer vision. At first the paper introduces a method of shape from shading based on single image and puts forward its implementation. Then adds proper boundary conditions and adjusts the factor of brightness error function adaptively according to the results by the original algorithm, and finds accuracy of the improved algorithm by the synthesized image. At last the improved algorithm is applied to the surface height reconstruction of weld successfully, and the computing is accurate enough for the inspection on shape of weld.