Apparatus and method for coding tree unit bit size limit management
US10805635B1 · kind B1 · utility
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9Claims
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Key dates
| Filing date | Mar 22, 2017 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Jun 20, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/194
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hardware encoder has a bit estimation block to compute an estimated bit size for a Coding Tree Unit (CTU). A CTU bit size limit manager selects quantization parameters for use in quantization. The quantization parameters are selected based upon the estimated bit size to insure that the CTU in coded form will not exceed a CTU bit size limit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.