Curved surface image processing apparatus and curved surface image processing method
US7212205B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2003 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | Jan 9, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T17/30
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A curved surface image processing apparatus 100 according to the present invention that can render an object at higher speed and in higher quality by performing image processing using NURBS data includes: a data input unit 101 for receiving NURBS data; a coordinate transformation unit 102 for performing coordinate transformation on NURBS data; an animation control unit 103 for controlling animation data of each frame to be rendered; a data transformation unit 104 for transforming NURBS data into rational Bezier data; a patch division unit 105 for subdividing a rational Bezier surface patch; a normal determination unit 106 for calculating normals of control points of a divided surface patch; a perspective transformation unit 107 for performing perspective transformation on a divided surface patch; and a rendering unit 108 for rendering a surface patch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.