Motion vector detection apparatus, motion vector detection method, image encoding apparatus, image encoding method, and computer program
US8270490B2 · kind B2 · utility
2Cited by
7References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 2, 2007 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Jun 17, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus detects a motion vector using image data to be encoded, and a plurality of reference image data. The apparatus conducts a motion vector search for first reference image data using a large block obtained by dividing the image data to be encoded, and divides the large block into a smaller block size at the position of a smallest matching error. The apparatus determines a block size used in a motion vector search for another reference data based on matching errors in the small blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.