Patent ID: 8310499
Filing Date: 2012-11-13
Classification: G06F,G09G,H04N

Abstract:
1. A non-transitory device-readable medium containing instructions for controlling luminance in a multi-projector display system, the instructions comprising: instructions for measuring sampled color output from each of a plurality of projectors in the multi-projector display system using a plurality of calibration images; instructions for computing an interpolated response curve for each color channel for each projector based on results of the measuring, each projector having a plurality of color channels; instructions for generating a median difference curve for each color channel for each projector using the interpolated response curve for that color channel from each projector; instructions for building reverse mapping tables, one for each projector, using the interpolated response curves and the median difference curves, including instructions for generating an adjustment curve for each color channel for each projector based on the median difference curves; instructions for computing cross-data adjustment ranges; instructions for adjusting a value of a source pixel using the cross-data adjustment ranges to generate a scaled input value; and instructions for modifying select output pixel values of the projectors to control color luminance disparity among the projectors using the reverse mapping tables, including instructions for modifying a particular one of the select output values using one or more of the adjustment curves, the scaled input value, or both.