Bit rate reduction for scalable video coding
US11323713B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 2019 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | May 14, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/33
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A wireless video transmission system includes: a coarse compression module to compress a video sub-frame and to generate coarse data of the video sub-frame: a coarse decompression module to generate a coarse sub-frame from the coarse data; an error frame extractor to generate an error sub-frame from the coarse sub-frame and from the video sub-frame; a refinement data encoder to generate a set of transform coefficients from the error sub-frame, and to select a subset of transform coefficients from the set of transform coefficients according to an end-of-block (EOB) indication in the coarse data; and a data combining and modulation module to combine and transmit the coarse data and a refinement data including the subset of transform coefficients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.