VIDEO ENCODING AND DECODING METHODS AND APPARATUS

WIPO Patent Application WO/2024/108931

A1

Disclosed are video encoding and decoding methods and an apparatus, relating to the field of computers. The methods comprise: on the basis of processing parameters indicated by rendering information, an encoding end (a decoding end) selecting a first type of filters from set multiple types of filters; and by means of using the first type of filters, acquiring a virtual reference frame of data to be processed. Therefore, the encoding end avoids the problem of low compression performance caused by using fixed filters for processing reconstructed images to obtain reference frames; and when the encoding end encodes, according to virtual reference frames, images to be encoded, residual values corresponding to said images are lowered, thereby improving the compression performance and video encoding efficiency. Additionally, the decoding end avoids the problem of poor decoding efficiency caused by using fixed filters for processing decoded images to obtain reference frames; the matching degree between a virtual reference frame and a source image corresponding to an image to be decoded is increased, and the processing data volume is reduced when the decoding end decodes a second image frame according to the virtual reference frame, thereby improving video decoding efficiency.

LIN ZEHUI (CN)
CAI KANGYING (CN)
CAO XIAORAN (CN)
XU YIQUN (CN)

PCT/CN2023/094873

May 30, 2024

May 17, 2023

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HUAWEI TECH CO LTD (CN)

H04N19/172

CN104641641A	2015-05-20
CN108632609A	2018-10-09
CN105659601A	2016-06-08
CN106658019A	2017-05-10
CN114071161A	2022-02-18
US20060062298A1	2006-03-23

BEIJING ZBSD PATENT & TRADEMARK AGENT LTD. (CN)

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