Subpicture-related video coding concepts

US12395651B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Yago SÁNCHEZ DE LA FUENTE · Berlin, DE
• Karsten SÜHRING · Berlin, DE
• Cornelius HELLGE · Berlin, DE
• Thomas SCHIERL · Berlin, DE
• Robert SKUPIN · Berlin, DE
• Thomas Wiegand · Berlin, DE

Key dates

• Filing date: May 20, 2021
• Grant date: Aug 19, 2025
• Expiry date: Feb 23, 2042

Classification

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

Abstract

Video coding concepts are described which relate to encoding, decoding, extracting and mixing video data streams having encoded therein pictures in a manner subdivided into independently coded subpictures. The concepts relate to an extraction of subpicture specific video data streams having a layer of subdivided pictures and a layer of un-subdivided pictures, a handling of inter-layer prediction tools and a handling of scaling windows for inter-layer prediction for such video data streams, a determination of decoder capability requirements for such data streams, layer-specific constraints for such data streams, and mixing of subpictures encoded with different types of independent coding.