Quantization splitting multiple description encoder
US7944388B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2009 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Dec 8, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/132
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An improved (N:K) multiple description binning encoder that employs binning yet permits recovery of the input signal when fewer than K of the descriptions are available. In creating the encoder, a first choice is made of the number of descriptions that the encoder is to create and the minimum number of descriptions below which full recovery of the input signal is not possible. A second choice is made as to the number of descriptions that are to be broken up, to form descriptions that have two portions each. Once the first choice is made, appropriate quantization and binning scheme are selected by employing conventional techniques, and in response to the second choice, the chosen number of descriptions are each quantization split into coarse and fine quantization arrangements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.