Apparatus and method for obtaining shape data of analytic surface approximate expression
US6812924B2 · kind B2 · utility
4Cited by
6References
8Claims
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Key dates
| Filing date | Mar 27, 2001 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Jan 8, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T17/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for generating three-dimensional shape data in analytic surface expression form by using polygonal shape data. In the polygonal shape data, at least a portion of a shape is approximated by a combination of a plurality of polygons. A set of polygons is generated from the polygonal shape data, each of the polygons satisfying a predetermined selection criterion. An analytic surface is fitted in place of the obtained set of polygons. The step of fitting is repeated by obtaining another set of polygons until a predetermined termination condition is satisfied.
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