Fast image classification by vocabulary tree based image retrieval
US8787682B2 · kind B2 · utility
8Cited by
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18Claims
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Key dates
| Filing date | Dec 28, 2011 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Apr 7, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/513
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods are disclosed to categorize images by detecting local features for each image; applying a tree structure to index local features in the images; and extracting a rank list of candidate images with category tags based on a tree indexing structure to estimate a label of a query image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.