Codec architecture for multiple layer video coding

US11627340B2 · kind B2 · utility

Assignee

• VID Scale, Inc. · US

Inventors

• Yan Ye · San Diego, US
• George W. McClellan · Bensalem, US
• Yong He · San Diego, US
• Xiaoyu Xiu · San Diego, US
• Yuwen He · San Diego, US
• Jie Dong · Beijing, CN
• Can Bal · Village of La Jolla, US
• Eun Seok Ryu · Seoul, KR

Key dates

• Filing date: Apr 30, 2021
• Grant date: Apr 11, 2023
• Expiry date: Apr 30, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04N19/36
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

Systems, methods, and instrumentalities are provided to implement video coding system (VCS). The VCS may be configured to receive a video signal, which may include one or more layers (e.g., a base layer (BL) and/or one or more enhancement layers (ELs)). The VCS may be configured to process a BL picture into an inter-layer reference (ILR) picture, e.g., using picture level inter-layer prediction process. The VCS may be configured to select one or both of the processed ILR picture or an enhancement layer (EL) reference picture. The selected reference picture(s) may comprise one of the EL reference picture, or the ILR picture. The VCS may be configured to predict a current EL picture using one or more of the selected ILR picture or the EL reference picture. The VCS may be configured to store the processed ILR picture in an EL decoded picture buffer (DPB).