Methods and systems for producing three-dimensional images using relief textures
Patent Number: 6,424,351
Date of Patent: 23 July 2002
Inventors: Bishop; Thomas G. (Apex, NC), Oliveira Neto; Manuel M. de (Chapel Hill, NC)
Assignee: The University of North Carolina at Chapel Hill (Chapel Hill, NC)
Appl. No.: 09/295,839
Filed: April 21, 1999
Int. Cl.: G06T 15/20 (20060101); G06T 15/10 (20060101); G06T 011/40 (); G06T 015/20
U.S. Cl.: 345/582 ; 345/427
12 Claims
Abstract
Methods and systems for producing three-dimensional images of a scene using relief textures include modeling surfaces in a scene with one or more relief textures. Each relief texture is projected onto its basis plane based on a desired viewpoint to produce a pre-warped image. Each pre-warped image is projected onto one or more polygons used to model the scene. Because the steps of texture mapping and pre-warping are separated, solving for visibility during the pre-warping is facilitated by using one-dimensional pre-warping equations