Device for coding/decoding image information
US5987184A · kind A · utility
43Cited by
10References
24Claims
0Family size
Inventors
Key dates
| Filing date | Sep 30, 1997 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Sep 30, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device for coding/decoding image information is provided to perform a boundary block merge of macro blocks of image information. Further, the DCT coefficients of a block are copied, if that is converted to an exterior block from a boundary block out of left-sided and upper-sided blocks for the purpose of performing a prediction of the DCT coefficients of the block's sub blocks. Thus, the efficiency of a coding/decoding process is enhanced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.