Method for determining depth for stereoscopic reconstruction of three dimensional images
US10210624B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2015 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Jan 30, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10012
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is provided for obtaining a disparity map for reconstructing a three dimensional image. The map is based upon a large range of disparities and is obtained by using a hardware provided with a buffer capable of storing data that relates to substantially less disparities than a data associated with the large disparities' range. The method comprises the steps of: providing a pair of stereoscopic images captured by two image capturing devices; dividing the large disparities' range into N disparity ranges; executing a stereo matching algorithm for a plurality of times, using data retrieved from a pair of captured images, wherein the algorithm is executed each time while using a different disparity range out of the N disparity ranges, thereby obtaining a plurality of individual disparity maps, each corresponding to a different disparity range; and merging the individual disparity maps to generate a map of the large disparities' range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.