Fast correlation search for stereo algorithm
US8879829B2 · kind B2 · utility
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30Claims
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Key dates
| Filing date | Oct 23, 2012 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | Jan 4, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30196
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques are disclosed for carrying our correlation search in contexts such as stereo algorithms of graphics systems. In accordance with an embodiment, the techniques employ a locality-sensitive hashing (LSH) function to reduce the number of bits to be processed during the correlation process, and to identify a sub-set of available image points that are likely to be the best match to a given target image point. Once such a sub-set of likely image points is identified, a more comprehensive correlation algorithm can be run, if so desired, to further ensure the quality of the match.
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