Patent ID: 7866832

Claim:
A method of projecting an image utilizing a plurality of projectors, wherein at least two of the projectors project overlapping portions of the image in a global display space, the method comprising: identifying overlapping pixels in the global display space; generating an attenuation map for the projectors, wherein the attenuation values for the overlapping pixels of the attenuation map are at least partially a function of the number of projectors contributing to the overlap; establishing pixel intensity values for the projectors by applying one or more intensity transfer functions to the attenuation maps generated for the projectors, wherein the intensity transfer functions are configured to at least partially account for the non-linear response of the output intensity of the projectors, as a function of an input intensity control signal applied to the projectors, and the intensity transfer functions are established by methodology comprising: generating a blended image using the attenuation map; adjusting pixel intensity for overlapping pixels in the blended image to create an enhanced blended image; repeating the pixel intensity adjustment for overlapping pixels in the blended image at one or more additional image intensity values; and using the initial and repeated intensity adjustments to establish the intensity transfer function.