Shape from Shading
The process of extracting three-dimensional shape information from smooth gradations of reflected light intensity. It has been shown by Horn that if certain assumptions are made concerning the reflectance function and illumination of a surface it is possible to formulate and solve equations relating surface shape to the measured intensities in an image of the surface. See intrinsic images <105>.
- [Horn ]Horn, R. K. P. Obtaining Shape from Shading Information. In Winston. P. H. (editor). The Psychology of Computer Vision.Google Scholar