Shozo Kondo, Kiyoaki Atsuta. A model of human estimation of 3D shape from shading information using zero crossings. In 11th IAPR International Conference on Pattern Recognition, ICPR 1992. Conference A: Computer Vision and Applications, The Hague, Netherlands, August 30-September 3, 1992. pages 538-541, IEEE, 1992. [doi]
Abstract is missing.