Method and apparatus for rendering a two dimensional image from three dimensional image data
US6243488A · kind A · utility
26Cited by
16References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1996 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Dec 3, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
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 at the extremes of a locus of interpolation are compared and from this comparison a particular look-up table, or a pair of look-up tables, are selected. When a pair of look-up tables are selected, it is possible to linearly interpolate between the two, in order to obtain a closer approximation to the desired non-linear response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.