Prediction mode-based block ordering in video coding
US9350988B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2012 |
| Grant date | May 24, 2016 |
| Priority date | — |
| Expiry date | Feb 28, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/107
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Video data streams can be encoded and decoded using inter or intra prediction. The blocks of a frame can be divided into groups of blocks to be inter predicted and blocks to be intra predicted, and the blocks to be inter predicted are encoded first. The availability of data from the inter predicted blocks can improve the performance of intra prediction over processing the blocks in the scan order since more pixel data is available for intra prediction of some blocks. For example, when the scan order is raster scan order, intra prediction of a block can use pixels peripheral to the bottom and right sides of the block in addition to the pixels peripheral to the top and left sides of the block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.