Title:
IMAGE ALIGNMENT METHOD AND APPARATUS, AND COMPUTER DEVICE AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/098045
Kind Code:
A1
Abstract:
Provided in the embodiments of the present disclosure are an image alignment method and apparatus, and a computer device and a storage medium, which are applied to the technical field of image processing, and solve the problem in the prior art of low image alignment precision caused by unobvious feature points. The method comprises: acquiring a first image and a second image; extracting a plurality of first feature points from a first region of interest of the first image, and extracting a plurality of second feature points from a second region of interest of the second image; performing feature matching on the plurality of first feature points and the plurality of second feature points, determining the coordinates of at least one first target feature point among the plurality of first feature points, and determining the coordinates of at least one second target feature point among the plurality of second feature points; calculating a first homography matrix for pixel mapping; and on the basis of the first homography matrix, mapping a pixel value of each pixel point in the first region of interest to a corresponding pixel point in the second region of interest, so as to obtain the first region of interest after image alignment.
Inventors:
JIANG HAIFENG (CN)
Application Number:
PCT/CN2022/100804
Publication Date:
June 08, 2023
Filing Date:
June 23, 2022
Export Citation:
Assignee:
SHANGHAI WINGTECH INFORMATION TECH CO LTD (CN)
International Classes:
G06T3/40; G06V10/25; G06V10/44; G06V40/16
Foreign References:
| CN114298902A | 2022-04-08 | |||
| CN110610457A | 2019-12-24 | |||
| CN104376548A | 2015-02-25 | |||
| CN109886878A | 2019-06-14 | |||
| US20120281921A1 | 2012-11-08 |
Attorney, Agent or Firm:
BEIJING MIZAR STAR INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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