Signaling of deblocking filter parameters in video coding
US9137547B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2014 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Aug 29, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/184
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This disclosure describes techniques for signaling deblocking filter parameters for a current slice of video data with reduced bitstream overhead. Deblocking filter parameters may be coded in one or more of a picture layer parameter set and a slice header. The techniques reduce a number of bits used to signal the deblocking filter parameters by coding a first syntax element that indicates whether deblocking filter parameters are present in both the picture layer parameter set and the slice header, and only coding a second syntax element in the slice header when both sets of deblocking filter parameters are present. Coding the second syntax element is eliminated when deblocking filter parameters are present in only one of the picture layer parameter set or the slice header. The second syntax element indicates which set of deblocking filter parameters to use to define a deblocking filter applied to a current slice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.