Adaptive upsampling for multi-layer video coding
US10218971B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2013 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Jul 22, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/159
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems, methods, and instrumentalities are disclosed for adaptive upsampling for multi-layer video coding. A method of communicating video data may involve applying an upsampling filter to a video sequence to create encoded enhancement layer pictures. The upsampling filter may be applied at a sequence level of the video sequence to create the enhancement layer bitstream. The upsampling filter may be selected from a plurality of candidate upsampling filters, for example, by determining whether knowledge of a category related to the video sequence exists and selecting a candidate upsampling filter that is designed for the category related to the video sequence. Upsampling filter information may be encoded. The encoded upsampling information may comprise a plurality of coefficients of the upsampling filter. The encoded upsampling filter information and the encoded enhancement layer pictures may be sent in an output video bitstream. The method may be performed, for example, by an encoder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.