Patent ID: 7365744
Filing Date: 2008-04-29
Classification: G06T

Abstract:
1. A method for modifying an image comprising the steps of: selecting at least a portion of the image on which to superimpose a texture, said at least a portion of the image including a plurality of individual units; estimating a surface normal for each of said units using the shading of each of said individual units; segmenting said at least a portion of the image into a plurality of clusters; using said surface normals from each of said units to parameterize each of said plurality of clusters with texture coordinates by distorting said clusters by assigning some or all of said individual units in each of said clusters a new position in texture coordinates to capture a foreshortening distortion due to said estimated surface normal, said new position thereby appearing foreshortened as if projected from a surface of similar orientation; assigning texture to each of said clusters using said texture coordinates to create a texture patch corresponding to each of said clusters; and, blending said texture patches together to modify the image.