Picture coding supporting block merging and skip mode

US9788009B2 · kind B2 · utility

Assignee

• GE Video Compression, LLC · US

Inventors

• Heiko Schwarz · Panketal, DE
• Heiner Kirchhoffer · Berlin, DE
• Philipp Helle · Berlin, DE
• Simon Oudin · Berlin, DE
• Jan Stegemann · Berlin, DE
• Benjamin Bross · Berlin, DE
• Detlev Marpe · Berlin, DE
• Thomas Wiegand · Berlin, DE

Key dates

• Filing date: Jun 28, 2016
• Grant date: Oct 10, 2017
• Expiry date: Jun 28, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04N19/70
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

A coding efficiency increase is achieved by using a common signalization within the bitstream with regard to activation of merging and activation of the skip mode. One possible state of one or more syntax elements within the bitstream may signalize for a current sample set of a picture that the sample set is to be merged and has no prediction residual encoded and inserted into the bitstream. A common flag may signalize whether the coding parameters associated with a current sample set are to be set according to a merge candidate or to be retrieved from the bitstream, and whether the current sample set of the picture is to be reconstructed based on a prediction signal depending on the coding parameters associated with the current sample set, without any residual data, or to be reconstructed by refining the prediction signal depending on the coding parameters associated with the current sample set by means of residual data within the bitstream.