Process for coding image sequences in a transmitter unit
US5995679A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 1997 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Nov 12, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/30
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The method achieves a reduction of the required transmission capacity. This occurs in that pixels of pixel-based image parts (PB) and corresponding pixels of computer image parts (CB) that overlap are already merged in the transmission unit according to the blue part of the pixel of the pixel-based image part (PB) and according to the computer model attributes, so that a key signal (K) is no longer transmitted. The key signal (K) usually indicates the ratio in which the pixel of the pixel-based image part (PB) should be merged with the pixel of the computer image part (CB). In known methods, this information is not binary. In the receiver unit, thus, the only thing decided is whether the pixel is taken from a partially mixed image sequence (TGB) or from the computer image parts (CB).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.