Fast randomized multi-scale energy minimization for inferring depth from stereo image pairs
US8737723B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 1, 2011 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Sep 20, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20016
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image processing module infers depth from a stereo image pair according to a multi-scale energy minimization process. A stereo image pair is progressively downsampled to generate a pyramid of downsampled image pairs of varying resolution. Starting with the coarsest downsampled image pair, a disparity map is generated that reflects displacement between corresponding pixels in the stereo image pair. The disparity map is then progressively upsampled. At each upsampling stage, the disparity labels are refined according to an energy function. The disparity labels provide depth information related to surfaces depicted in the stereo image pair.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.