Image-based photo hulls
US6975756B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2002 |
| Grant date | Dec 13, 2005 |
| Priority date | — |
| Expiry date | Nov 2, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/205
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention features an improved, photo hull based method of generating a three-dimensional representation of a visual scene based upon a set of multi-view reference images. In one aspect, a visual hull containing the visual scene is computed. Visibility of points on the computed visual hull with respect to each reference image is computed. Photo-consistency of points on the computed visual hull along rays back-projected from a desired view is computed based upon reference images having visibility of the points. A photo hull containing the visual scene is generated by stepping along each back-projected ray. The photo-consistent points visible in the desired view are colored using color information contained in reference images having visibility of the photo-consistent points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.