Method of and apparatus for image analysis
US8238691B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Sep 6, 2006 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Dec 16, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30168
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of and apparatus for image analysis for picture loss detection in fields or frames in video or film content makes use of different correlation characteristics of picture images and non-picture images to detect picture loss. A measure of self correlation of a plurality of image data samples, and a measure of the correlation of the plurality of image data samples with a mean value are determined, and a positive detection of picture loss is based on a comparison between the two correlation measures.
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