Adaptive scanning for performance enhancement in image detection systems
US7840037B2 · kind B2 · utility
4Cited by
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17Claims
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Key dates
| Filing date | Mar 9, 2007 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Sep 22, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/165
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system for efficiently detecting faces within a digital image. One example method includes identifying a digital image comprised of a plurality of sub-windows and performing a first scan of the digital image using a coarse detection level to eliminate the sub-windows that have a low likelihood of representing a face. The subset of the sub-windows that were not eliminated during the first scan are then scanned a second time using a fine detection level having a higher accuracy level than the coarse detection level used during the first scan to identify sub-windows having a high likelihood of representing a face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.