System and method of rendering interior surfaces of 3D volumes to be viewed from an external viewpoint
US8633929B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 2010 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | Aug 31, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/40
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
System and methods for rendering interior surfaces of a 3D volumetric object to be viewed from an external viewpoint. Image data sets being representative of a 3D volumetric object are processed to render image surfaces of the 3D volumetric object. The rendered image surfaces are transformed to allow viewing of internal surfaces of the 3D volumetric object from the perspective of the external viewpoint. The transformations involve inverting at least one of a normal vector, a winding order, and a z-order of a plurality of polygon members making up the rendered image surfaces. The transformations may further involve modifying a transparency parameter of a subset of the plurality of polygon members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.