Techniques for high efficiency entropy coding of video data
US10873765B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2018 |
| Grant date | Dec 22, 2020 |
| Priority date | — |
| Expiry date | Mar 29, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/93
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Entropy coding/decoding techniques are disclosed in which data is coded alternately as a series of nonzero values and zero values until the transmitted data is consumed. Nonzero values may be coded first with transmission of data identifying a number of consecutive nonzero values that appear in scan order followed by transmission of the nonzero values themselves. Thereafter, if other data remains to be transmitted, data may be transmitted identifying a number of consecutive zero values that appear next in scan order followed by transmission of a next nonzero value encountered in scan order. By transmitting the nonzero values as a group, it is expected that the proposed entropy-coding process will achieve higher efficiency than competitive techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.