Video encoder for images
US10003792B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2013 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | Dec 1, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/96
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Some implementations can compress a digital image to create a compressed image corresponding to the digital image. The digital image can be divided into a plurality of coding units and a determination can be made whether to divide each coding unit of the plurality of coding units into smaller coding units/prediction units based on (i) a range of pixel values in each coding unit and/or (ii) a number of bits to encode the coding unit. Rate distortion optimization can be performed based on a size of each of the prediction units. A determination can be made whether to perform a transform for each of the transform units based on a size of each prediction unit and/or a spatial frequency measure associated with each transform unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.