Hierarchical sparse representation for image retrieval
US8463045B2 · kind B2 · utility
9Cited by
10References
20Claims
0Family size
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Key dates
| Filing date | Nov 10, 2010 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Aug 12, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/5838
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A hierarchical sparse codebook allows efficient search and comparison of images in image retrieval. The hierarchical sparse codebook includes multiple levels and allows a gradual determination/classification of an image feature of an image into one or more groups or nodes by traversing the image feature through one or more paths to the one or more groups or nodes of the codebook. The image feature is compared with a subset of nodes at each level of the codebook, thereby reducing processing time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.