Title:
ENTROPY ENCODING/DECODING METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/068716
Kind Code:
A1
Abstract:
The present application relates to the technical field of video or image compression based on artificial intelligence (AI), and in particular to the technical field of video compression based on neural networks. The present application provides an entropy encoding/decoding method and device. The method comprises: obtaining basic layer information of an image block to be encoded, the basic layer information corresponding to M pixel points in the image block, and M being a positive integer; obtaining K elements corresponding to enhancement layer information of the image block, the enhancement layer information corresponding to N pixel points in the image block, K and N being both positive integers, and N ≥ M; inputting the basic layer information into a neural network to obtain K groups of probability values, the K groups of probability values corresponding to the K elements, and any group of probability values being used for representing probabilities of a plurality of candidate values of the corresponding element; and entropy encoding the K elements according to the K groups of probability values. The present application can improve the efficiency of entropy encoding/decoding.
Inventors:
MAO JUE (CN)
YANG HAITAO (CN)
MA XIANG (CN)
YANG HAITAO (CN)
MA XIANG (CN)
Application Number:
PCT/CN2021/120639
Publication Date:
April 07, 2022
Filing Date:
September 26, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04N19/91
Foreign References:
| CN111491168A | 2020-08-04 | |||
| CN103716629A | 2014-04-09 | |||
| CN103518374A | 2014-01-15 | |||
| US10652581B1 | 2020-05-12 | |||
| CN202011066451A | 2020-09-30 |
Other References:
See also references of EP 4207766A4
Attorney, Agent or Firm:
BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
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