Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Jianglin Wang

Fuzheng Yang

Junyan Huo

Shuai Wan

Yanzhuo Ma

Provided are a method for determining a prediction direction, a decoder and a computer storage medium. The method is implemented by a decoder. The method includes that: a Direct Mode (DM) in a chroma intra prediction mode of a block to be decoded is acquired (S); and an index number of a prediction direction in a DM derived mode is determined based on an offset N and an index number M of a prediction direction in the DM to determine the DM derived mode (S).

Method for determining prediction direction, decoder, and computer storage medium

Provided are an intra prediction method and apparatus, and a computer-readable storage medium. The method includes: acquiring a first reference sample set corresponding to the current processing block, wherein the first reference sample set includes at least one of a reference row adjacent to the current processing block and a reference column adjacent to the current processing block; selecting, based on a pre-set selection method, a second reference sample set from the first reference sample set, wherein the second reference sample set includes at least one reference sample in the reference row adjacent to the current processing block or the reference column adjacent to the current processing block; obtaining, based on the second reference sample set, a prediction value of the current processing block; and performing, based on the prediction value, intra prediction on the current processing block.

Intra prediction method and apparatus, and computer-readable storage medium

The embodiments of the disclosure disclose a method for determining a prediction direction, a decoder and a computer storage medium. The method is implemented by a decoder. The method includes that: a Direct Mode (DM) in a chroma intra prediction mode of a block to be decoded is acquired (S); and an index number of a prediction direction in a DM derived mode is determined based on an offset N and an index number M of a prediction direction in the DM to determine the DM derived mode (S).

A method for determining a prediction direction is provided. The method is implemented by a decoder. The method includes: acquiring a Direct Mode (DM) in a chroma intra prediction mode of a block to be decoded (S); and determining an index number of a prediction direction in a DM derived mode based on an offset N and an index number M of a prediction direction in the DM to determine the DM derived mode (S).

Growing community of inventors

Dongguan, China

Jianglin Wang