Picture quality monitoring system
US6055015A · kind A · utility
20Cited by
6References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 25, 1998 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Jul 25, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N17/004
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A picture quality monitoring system for a television chain provides incremental metrics for each layer of the chain--video, compression and modulation. The output of each layer is stored as a reference signal for the next or subsequent layers. The output from each layer is compared with the output from a prior layer to determine an incremental degradation metric. All of the incremental degradation metrics may be combined to produce an overall degradation metric for the entire television chain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.