Surface normal estimation for use in rendering an image
US9875554B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2014 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | Feb 29, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2215/16
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Relightable free-viewpoint rendering allows a novel view of a scene to be rendered and relit based on multiple views of the scene from multiple camera viewpoints. Image values from the multiple camera viewpoints can be separated into diffuse image components and specular image components, such that an intrinsic color component of a relightable texture can be determined for a specular scene, by using the separated diffuse image components. Furthermore, surface normals of geometry in the scene can be refined by constructing a height map based on a conservative component of an initial surface normal field and then determining the refined surface normals based on the constructed height map.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.