Composed prediction and restricted merge

US11895290B2 · kind B2 · utility

Assignee

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

Inventors

• Thomas Wiegand · Berlin, DE
• Detlev Marpe · Berlin, DE
• Heiko Schwarz · Panketal, DE
• Martin Winken · Berlin, DE
• Christian Bartnik · Berlin, DE
• Jonathan PFAFF · Berlin, DE
• Philipp Helle · Berlin, DE
• Mischa Siekmann · Berlin, DE

Key dates

• Filing date: Mar 21, 2022
• Grant date: Feb 6, 2024
• Expiry date: Jul 21, 2042

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04N19/46
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

A video coding method and apparatus for codes a video in a data stream using block-based predictive coding by deriving a collection of one or more primitive predictions for a block using a set of primitive prediction modes adapted for predicting blocks of a picture of the video. Each primitive prediction in the collection of primitive predictions is derived using a respective primitive prediction mode from the set of primitive prediction modes. A composite prediction signal for the block is composed by combining primitive predictions from the collection of one or more primitive predictions, and the block is predicted using the composite prediction signal.