Title:
IMAGE QUALITY ENHANCEMENT DEVICE AND RELATED METHOD
Document Type and Number:
WIPO Patent Application WO/2021/213336
Kind Code:
A1
Abstract:
The present application discloses an image quality enhancement device and method, which can be specifically applied to the field of terminal artificial intelligence (AI) and corresponding sub-fields. The image quality enhancement device comprises a general processing unit (CPU) and a graphics processing unit (GPU), wherein the CPU is used to perform downsampling on a target frame image in a target video, to obtain a low-resolution image, and perform feature extraction on the low-resolution image, to acquire a target bilateral grid corresponding to the low-resolution image; and the GPU is used to acquire, by means of a bilateral guided upsampling (BGU) interpolation method, according to the target bilateral grid and affine transformation information included in the target bilateral grid, an affine transformation matrix of the upsampled low-resolution image; and according to the affine transformation matrix, enhancing the image quality of each pixel point in the target frame image, to obtain an enhanced target frame image. The implementation of the embodiments of the present application can enhance the video image quality on a big screen.
Inventors:
XIE JIANGRONG (CN)
JIA MINGBO (CN)
WANG JIAN (CN)
JIA MINGBO (CN)
WANG JIAN (CN)
Application Number:
PCT/CN2021/088171
Publication Date:
October 28, 2021
Filing Date:
April 19, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06T3/00
Foreign References:
| CN110062282A | 2019-07-26 | |||
| CN110428362A | 2019-11-08 | |||
| CN109754007A | 2019-05-14 | |||
| CN109961404A | 2019-07-02 | |||
| US20170278224A1 | 2017-09-28 |
Other References:
MICHAEL GHARBI , JIAWEN CHEN, JONATHAN T BARRON, SAMUEL W HASINOFF , FREDO DURAND: "Deep bilateral learning for real-time image enhancement", ACM TRANSACTIONS ON GRAPHICS, vol. 36, no. 4, 20 July 2017 (2017-07-20), US , pages 1 - 12, XP058372892, ISSN: 0730-0301, DOI: 10.1145/3072959.3073592
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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