System and method for DCT domain inverse motion compensation using shared information
US6115070A · kind A · utility
37Cited by
11References
11Claims
0Family size
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Key dates
| Filing date | Jun 12, 1997 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Jun 12, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/51
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Given compressed video which supports the coding of interlaced and noninterlaced frames through DCT and motion compensation, shared information is used in a macroblock for efficient conversion of inter-coded blocks to DCT intra-coded blocks. The shared information is also used to efficiently construct spatially reduced images without decompression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.