Method and apparatus for generating isosurfaces
US5559935A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1994 |
| Grant date | Sep 24, 1996 |
| Priority date | — |
| Expiry date | Nov 30, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T17/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An isosurface is composed of grid points having a predetermined scalar value. The method and apparatus of the present invention generates an isosurface by extracting from volume data a first grid point having a minimum scalar value and a second grid point having a maximum scalar value. A list of polyhedrons that intersect a line connecting the first grid point to the second grid point is generated and stored. The isosurface is generated in accordance with the list of polyhedrons and the predetermined scalar value. Because the volume data obtained by scientific and technological calculation or the like is kept in the form of a polyhedron list having an associated maximum scalar value and minimum scalar value, generating an isosurface according to a predetermined scalar value can be accomplished at high speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.