Shadow buffer control module method and software construct for adjusting per pixel raster images attributes to screen space and projector features for digital warp, intensity transforms, color matching, soft-edge blending, and filtering for multiple projectors and laser projectors

摘要

Computerized method that provides user control of multiple reusable parallel buffers that have utility in mapping and processing digital transformations to improve formation of composite images for single or multiple images. Pixel and sub-pixel memory maps (i.e., Shadow Buffers) of screen space and projector attributes (e.g., gamma, contrast, intensity, color, position, stretching, warping, soft-edge blending, etc.) are used to improve the final overall composite image. Composite imagery improvements include multiple projected images digitally soft-edge blended into seamless tiled image display; single or multiple projected images digitally warped into a seamless tiled image for curved screen displays; single or multiple projected images digitally warped for geometric correction; single or multiple images digitally corrected for defects in the projector or display device; single or multiple images digitally corrected for defects in the display screen(s); and single or multiple images digitally combined or subtracted for sensor fusion, synthetic visions, and augmented reality. Digital image manipulation and control means enable the use of low cost solutions such as digital projectors and achieve tiling of multiple low-cost visual channels coupled with low-cost high lumen LCD projectors to produce high-resolution, high-brightness projected displays suitable for military simulation and commercial applications within the image generation device and does not require additional custom hardware. Further, the parallel nature of the Shadow Buffer supports combinations for a plurality of applications. A digital video combiner is leveraged to obtain ultra high-resolution.