Gradual updating using transform coefficients for encoding and decoding
US9762912B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2015 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Nov 22, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/149
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Innovations are provided for encoding and/or decoding video and/or image content using transform coefficient level gradual updating. Transform coefficient level gradual updating can be applied by encoding (or decoding) different subsets of the transform coefficients for the blocks, macroblocks, or other coding unit for each of a sequence of pictures. For example, a first subset of the transform coefficients of the blocks of a first picture can be encoded with the first picture, a second subset of the transform coefficients of the blocks of a second picture can be encoded with the second picture, and so on. A decoder can reconstruct pictures with increasing quality by receiving additional subsets of the transform coefficients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.