Title:
VIDEO ENCODING AND DECODING METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/083263
Kind Code:
A1
Abstract:
The present application relates to the technical field of video encoding and decoding, and discloses a video encoding and decoding method and apparatus, which are used for providing a new transformation method for current encoding and decoding technologies. The transformation method can improve the transformation flexibility. The use of the transformation method based on different dimensions can reduce the calculation complexity, reduce the calculation burden of a hardware device, reduce the hardware implementation complexity, and improve the compression performance. The decoding method comprises: performing entropy decoding and inverse quantization on a code stream to obtain an inverse transform unit; and performing discrete wavelet inverse transform on the inverse transform unit to obtain an inverse transform coefficient.
Inventors:
CAO XIAOQIANG (CN)
SUN YUCHENG (CN)
CHEN FANGDONG (CN)
WANG LI (CN)
SUN YUCHENG (CN)
CHEN FANGDONG (CN)
WANG LI (CN)
Application Number:
PCT/CN2022/131167
Publication Date:
May 19, 2023
Filing Date:
November 10, 2022
Export Citation:
Assignee:
HANGZHOU HIKVISION DIGITAL TEC (CN)
International Classes:
H04N19/63
Foreign References:
| JP2000244742A | 2000-09-08 | |||
| US20200021852A1 | 2020-01-16 | |||
| CN103905831A | 2014-07-02 | |||
| US20200260078A1 | 2020-08-13 |
Attorney, Agent or Firm:
BEIJING BESTIPR INTELLECTUAL PROPERTY LAW CORPORATION (CN)
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