System and method for determining high frequency content in an analog image source
US8260047B2 · kind B2 · utility
1Cited by
4References
20Claims
0Family size
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Key dates
| Filing date | Jun 23, 2008 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | May 24, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/28
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for determining high frequency content in an analog image source. A method comprises creating a histogram of the image, and selecting a portion of the image based on the histogram. The histogram comprises a first number of horizontal bins and a second number of vertical bins, with each bin having an associated counter for maintaining a count of pixel differences of pixels in a portion of the image corresponding to the bin that exceed a threshold. The portion of the image selected corresponds to a portion of the histogram having a high pixel difference count relative to other portions of the histogram.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.