Method and apparatus for scalable decompression of a digital motion video signal using variable pixel depths
US5325124A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1992 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | Dec 22, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a method and apparatus for scalably decoding a sequence of encoded digital video frames on a digital processor, an interpolation level is determined in accordance with the processing power of the digital processor. An encoded frame is selected from the sequence for decoding. If the interpolation level is greater than a predetermined threshold, then a scalably decoded frame is formed by interpolating the selected frame in accordance with a first pixel depth level. If the interpolation level is not greater than the predetermined threshold, then a scalably decoded frame is formed by interpolating the selected frame in accordance with a second pixel depth level, the second pixel depth level having fewer bits than the first pixel depth level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.