Title:
ENCODING AND DECODING METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/056898
Kind Code:
A1
Abstract:
Provided in an embodiment of the present invention are an encoding and decoding method and a device. The encoding method comprises: first, performing a down sampling on an original resolution image to obtain a low resolution image, and then inputting the low resolution image into a main encoder for encoding to obtain main coding information; then, inputting the low resolution image to an up converter for up conversion processing to obtain a full resolution image; calculating a residual image according to the original resolution image and the full resolution image; inputting the residual image into an auto-encoder for encoding, and acquiring residual image encoding information; and inputting the residual image encoding information to a secondary encoder for entropy coding to obtain secondary coding information. In this way, 4K or higher quality images can be split into main coded information and auxiliary coded information to be transmitted separately. With this method, 4K or higher quality video transmission can be realized under the current network environment, and the reconstructed video image quality can be guaranteed.
Inventors:
XU WEI (CN)
GE XINYU (CN)
ZHOU LI (CN)
GE XINYU (CN)
ZHOU LI (CN)
Application Number:
PCT/CN2018/101040
Publication Date:
March 28, 2019
Filing Date:
August 17, 2018
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04N19/132; H04N19/147; H04N19/176; H04N19/59; H04N19/86
Domestic Patent References:
| WO2003036980A1 | 2003-05-01 |
Foreign References:
| CN107181949A | 2017-09-19 | |||
| CN107018422A | 2017-08-04 | |||
| CN105959705A | 2016-09-21 | |||
| CN103607591A | 2014-02-26 | |||
| CN1939067A | 2007-03-28 |
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