公开(公告)号：US20250131602A1

公开(公告)日：2025-04-24

申请号：US18988375

申请日：2024-12-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Tiansheng Guo ,  Zhe Chen ,  Meng Li ,  Jingping Chen ,  Jing Wang

IPC: G06T9/00 ,  G06T5/60 ,  G06T5/70 ,  G06V10/62 ,  G06V10/77 ,  G06V10/82

Abstract: This application relates to the field of picture compression technologies, and in particular, to a picture encoding method and apparatus and a picture decoding method and apparatus. The picture decoding method includes: obtaining a side information bitstream of a to-be-decoded picture (1301); and obtaining a picture side information feature based on the side information bitstream (1302), and obtaining a preview picture based on the picture side information feature (1303). The picture side information feature is a second picture feature set obtained by performing, based on a hyperprior encoding neural network, feature extraction on a first picture feature set corresponding to the to-be-decoded picture. Based on the foregoing decoding solution, a decoder side may quickly obtain the preview picture based on the side information bitstream.