Methods and systems of performing predictive random access using a background picture
US10063861B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2016 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Aug 30, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques and systems are provided for performing predictive random access using a background picture. For example, a method of decoding video data includes obtaining an encoded video bitstream comprising a plurality of pictures. The plurality of pictures include a plurality of predictive random access pictures. A predictive random access picture is at least partially encoded using inter-prediction based on at least one background picture. The method further includes determining, for a time instance of the video bitstream, a predictive random access picture of the plurality of predictive random access pictures with a time stamp closest in time to the time instance. The method further includes determining a background picture associated with the predictive random access picture, and decoding at least a portion of the predictive random access picture using inter-prediction based on the background picture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.