Method and arrangement for estimating the quality degradation of a processed signal
US8949114B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2009 |
| Grant date | Feb 3, 2015 |
| Priority date | — |
| Expiry date | Sep 8, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/69
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An objective quality assessment method for obtaining an improved estimate of a perceptual quality degradation of a processed signal, and an arrangement for executing such a method, is provided, which is executed on a processed signal and an associate reference signal. Both signals are split up into associated frame-pairs after which either all or selected frame-pairs are processed further, by creating a reference residual signal and a processed residual signal for each frame-pair, calculating separate ratios of p-norms on both residual signals, and by calculating and storing a per-frame quality estimate on the basis of the ratios of p-norms for each selected frame-pair. An objective per-signal quality estimate that is proportional to the perceptual quality degradation is then provided by aggregating the calculated per-frame-pair quality estimates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.