Patent ID: 6320578
Filing Date: 2001-11-20
Classification: G06T

Abstract:
A method for eliminating a shadow of a photographic image containing a picture of a three-dimensional object comprising:superimposing a three-dimensional model on the picture of the three-dimensional object contained in the image so as to fit the three-dimensional model to the picture;designating a shadow plane of the picture of the three-dimensional object contained in the image;estimating a position of a light source, based on a plane of the three-dimensional model superimposed on the designated plane;searching an area on which a shadow is to be created by a rendering for the three-dimensional model based on the estimated position of the light source, and deciding that an area on which the searched out plane is superimposed is a shadow area of said image; andeliminating the shadow from the area which has been decided as the shadow area.