公开(公告)号：US11503297B2

公开(公告)日：2022-11-15

申请号：US17295266

申请日：2019-11-20

Applicant: ZTE Corporation

Inventor： Hong Wang ,  Ke Xu ,  Bo Huang ,  Chengqiang Liu ,  Sheng Luo ,  Guoning Lu ,  Degen Zhen

IPC: H04N19/42 ,  H04N19/60 ,  H04N19/85 ,  H04N19/124

Abstract: Provided are method and device for inverse quantization and inverse transformation and non-transitory computer-readable storage medium. The method includes: performing inverse quantization processing on input data; determining whether secondary inverse transform processing is necessary; performing, in response to determining that the secondary inverse transform processing is necessary, the secondary inverse transform processing on data obtained through the inverse quantization processing, first one-dimensional inverse transform control processing on data obtained through the secondary inverse transform processing, and second one-dimensional inverse transform control processing on data obtained through the first one-dimensional inverse transform control processing; and performing, in response to determining that the secondary inverse transform processing is unnecessary, first one-dimensional inverse transform control processing on the data obtained through the inverse quantization processing, and second one-dimensional inverse transform control processing on the data obtained through the first one-dimensional inverse transform control processing.