Patent ID: 6249289
Filing Date: 2001-06-19
Classification: G06T

Abstract:
A distortion correction method comprising the steps of:(1) subdividing a field of view of at least one object in world space into at least one subdivided viewport, wherein each object in the world space is modeled by a polygon mesh;(2) defining a distortion mesh, each vertex in said distortion mesh having a texture coordinate that represents a pixel in an intermediate image;(3) projecting at least one polygon in the world space onto a selected subdivided viewport to produce said intermediate image, wherein said intermediate image provides a first approximation to the distortion;(4) rendering said intermediate image;(5) rendering said distortion mesh;(6) covering at least part of said rendered distortion mesh with at least part of said intermediate image to produce a final distorted image, wherein said covering of said rendered distortion mesh with said intermediate image is dependent upon an observer position; and(7) sending said final distorted image to a display generator.