Repeat field detecting apparatus, video progressive conversion reproducing apparatus, repeat field detecting method, program, and recording medium
US7324157B2 · kind B2 · utility
2Cited by
4References
22Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 11, 2003 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Oct 18, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/012
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Using an index indicating the amount of motion and noise in the video image calculated on the basis of the discrepancy pixel numbers of image two fields ago and the present image, the reliability of detection result is obtained and utilized, so as to improve the repeat field detection accuracy and the scene change detection accuracy. Further, adaptive filter accuracy is improved by changing the determination conditions in the determination of the filter to be used. In addition, filter control accuracy is improved by suppressing the filter fluctuation per unit time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.