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首页> 美国政府科技报告 >Fast Spheres, Shadows, Textures, Transparencies, and Image Enhancements in Pixel-Planes
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Fast Spheres, Shadows, Textures, Transparencies, and Image Enhancements in Pixel-Planes

机译：像素平面中的快速球体，阴影，纹理，透明度和图像增强

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摘要

Pixel-planes is as logic-enhanced memory system for raster graphics and imaging. Although each pixel-memory is enhanced with a one-bit ALU, the system's real power comes from a tree of one-bit adders that can evaluate linear expressions Ax + By + C for every pixel (x,y) simultaneously, as fast as the ALUs and the memory circuits can accept the results. We and others have begun to develop a variety of algorithms that exploit this fast linear expression evaluation capability. In this paper we report some of those results. Illustrated in this paper is a sample image from a small working prototype of the Pixel-planes hardware and a variety of images from simulations of a full-scale system. Timing estimates indicate that 30,000 smooth shaded triangles can be generated per second, or over 25,000 shaded spheres can be generated per second. Image-enhancement by adaptive histogram equalization can be performed within 4 seconds on a 512x512 image.

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