Shape from Shading and Photometric Stereo Using Surface Approximation by Legendre Polynomials. - Bang-Hwan Kim; Rae-Hong Park (Comput. Vis. Image Underst., 1997)

Multi-image photometric stereo using surface approximation by Legendre polynomials. - Bang-Hwan Kim; Rae-Hong Park (Pattern Recognit., 1998)