18230384. VIDEO DECODER AND METHODS simplified abstract (HUAWEI TECHNOLOGIES CO., LTD.)

VIDEO DECODER AND METHODS

Organization Name

HUAWEI TECHNOLOGIES CO., LTD.

Inventor(s)

Timofey Mikhailovich Solovyev of Munich (DE)

Roman Igorevich Chernyak of Moscow (RU)

Alexander Alexandrovich Karabutov of Munich (DE)

Jianle Chen of San Diego CA (US)

Sergey Yurievich Ikonin of Moscow (RU)

Elena Alexandrovna Alshina of Munich (DE)

VIDEO DECODER AND METHODS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18230384 titled 'VIDEO DECODER AND METHODS

Simplified Explanation

The present disclosure is about a video encoding and decoding technique that involves determining motion information for a current block using a history-based motion vector predictor (HMVP) list. The HMVP list is an ordered list of HMVP candidates associated with motion information of preceding blocks of the frame. Each HMVP candidate has motion vectors, reference picture indices, and bi-prediction weight indices. The motion information for the current block is derived based on the motion information candidate list.

• The patent application describes a method for determining motion information in video encoding and decoding.
• The method involves using a history-based motion vector predictor (HMVP) list.
• The HMVP list is an ordered list of HMVP candidates associated with motion information of preceding blocks.
• Each HMVP candidate has motion vectors, reference picture indices, and bi-prediction weight indices.
• One or more HMVP candidates from the HMVP list are added to a motion information candidate list for the current block.
• The motion information for the current block is derived based on the motion information candidate list.

Potential applications of this technology:

• Video encoding and decoding systems
• Video streaming platforms
• Video compression algorithms
• Video editing software

Problems solved by this technology:

• Improves the accuracy of motion information determination in video encoding and decoding
• Enhances the efficiency of video compression algorithms
• Reduces artifacts and distortions in video playback

Benefits of this technology:

• Higher quality video encoding and decoding
• Improved video compression efficiency
• Enhanced video streaming performance
• Better video editing capabilities

Original Abstract Submitted

The present disclosure relates to video encoding and decoding, and in particular to determining motion information for a current block using a history-based motion vector predictor, HMVP, list. The HMVP list is constructed, with said list being an ordered list of N HMVP candidates H, k=0, . . . , N−1, which are associated with motion information of N preceding blocks of the frame and precede the current block. Each HMVP candidate has motion information including elements of one or more motion vectors, MVs, one or more reference picture indices corresponding to the MVs, and one or more bi-prediction weight indices. One or more HMVP candidates from the HMVP list are added into a motion information candidate list for the current block; and the motion information is derived based on the motion information candidate list.