TEXTURE MAPPING OF PHOTOGRAPHIC IMAGES TO CAD SURFACES

摘要

A method for mapping a two-dimensional image of aphysical object onto a computer generated three-dimensional surfacedefined by a plurality of surface points in a CAD space has the steps ofcreating a two-dimensional texture image plane of the physical object bytaking a photograph of the physical object with a photographic device andconverting the photograph into a texture image plane having a pluralityof texture image plane points, determining a physical position of thephotographic device with respect to the physical object, and transferringthe texture image plane onto the three-dimensional surface. The transferis accomplished by positioning a synthetic camera in the CDA space withrespect to the three-dimensional surface according to the physicalposition of the photographic device, mapping each of the plurality ofsurface points viewable by the synthetic camera to a correspondingtexture image point in the texture image plane, and assigning texturecoordinates to each of the plurality of surface points from thecorresponding texture image plane point.