Multi-channel variable bit-rate video compression
US10412424B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 19, 2011 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Sep 23, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/87
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems, method, and computer program products for providing multi-channel variable bit-rate video compression are described. In some implementations, video channels can be allocated with bit rates that are set based on a predefined video compression quality. More specifically, each channel can generate a table describing the set of video compression quality values each corresponding to a bit rate value that can be used to achieve that video compression quality value. To generate the table or pre-compression coding information, encoders of the system described herein can pre-encode each input signal at multiple, different bit rates, and record the video compression quality value achievable at each of the bit rates. The system also can use lesser number of encoders for pre-encoding, supplemented by data interpolation, to generate the pre-compression coding information, requiring less processing algorithm but at an expense of lower accuracy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.