Title:
IMAGE PROCESSING METHOD AND RELATED DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/050026
Kind Code:
A1
Abstract:
Disclosed in the embodiments of the present application are an image processing method and a related device, which are used for accurately estimating a blur kernel. The method in the embodiments of the present application comprises: acquiring an initial image; then, determining gradient images of a plurality of directions of the initial image on the basis of a preset target function, wherein the target function comprises a sparse regular constraint based on a derivative of a target image; and after a preset number of gradient blocks are extracted from the gradient images of the plurality of directions, iteratively updating the target function on the basis of a preset algorithm and the preset number of gradient blocks, so as to obtain a target blur kernel. The more sparse a regular constraint is, the more accurate a blur kernel estimated by means of a target function becomes, and a derivative of a target image has a sparse characteristic, such that the selected target function is associated with the characteristic of the target image; and a sparse regular constraint configured with a derivative of a target image enables an estimated blur kernel to be more accurate.
Inventors:
YE YU (CN)
ZHANG DI (CN)
YANG FAN (CN)
ZHANG DI (CN)
YANG FAN (CN)
Application Number:
PCT/CN2021/121149
Publication Date:
April 06, 2023
Filing Date:
September 28, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06T5/00
Foreign References:
| CN106157268A | 2016-11-23 | |||
| CN108629741A | 2018-10-09 | |||
| CN109919871A | 2019-06-21 | |||
| CN110675347A | 2020-01-10 | |||
| US20140355901A1 | 2014-12-04 |
Attorney, Agent or Firm:
SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)
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