Texture mapping or video mapping is performed in such a way as to obtain perspectively correct images, while at the same time not requiring excessive computational overheads. Non-linear functions required to achieve perspectively correct images are stored in the form of look-up tables. Depth extents...http://www.google.com.tw/patents/US6243488?utm_source=gb-gplus-share專利 US6243488 - Method and apparatus for rendering a two dimensional image from three dimensional image data
