Cluster-based dependency signaling

US11006136B2 · kind B2 · utility

Assignee

• GE Video Compression, LLC · US

Inventors

• Karsten Suehring · Berlin, DE
• Thomas SCHIERL · Berlin, DE
• Detlev Marpe · Berlin, DE
• Robert SKUPIN · Berlin, DE
• Yago SÁNCHEZ DE LA FUENTE · Berlin, DE
• Gerhard Tech · Berlin, DE

Key dates

• Filing date: Feb 20, 2020
• Grant date: May 11, 2021
• Expiry date: Feb 20, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04N19/91
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

The signalization of the inter-layer dependencies between layers of a multi-layered data stream is described. A good compromise between a too intensive restriction of the potential diversity of inter-layer dependencies on the one hand and a too complex signaling of the inter-layer dependencies on the other hand has been found by describing the inter-layer dependencies by way of a first inter-dependency syntax structure indicating inter-dependencies between pairs of different values representable by a base layer-ID and a second inter-dependency syntax structure indicating inter-dependencies between pairs of different values representable by an extension layer-ID, the base layer ID and extension layer ID indexing the layers the portions of the multi-layer data stream are associated with. In accordance with this concept, emphasis may be shifted between increased diversity of the signalizable inter-layer dependencies on the one hand and reduced side-information overhead for signaling the inter-layer dependencies on the other hand.