Method for determining image intensities of projected images to change the appearance of three-dimensional objects

摘要

A computer implemented method determines an intensity of each pixel in an image to be projected onto a surface of 3D physical object to change an appearance of the object. A desired radiance in a particular direction and at a particular distance from a point on the surface of the object when illuminated by the pixel is specified when the pixel is treated as a point emitter. The desired radiance is multiplied by a square of the distance to obtain a first product. A diffuse reflectance at the point is multiplied by the direction to obtain a second product, and the first product is divided by the second product to determine the intensity for the pixel in the image.