Multispectral image registration method and device

A multi-spectral image and registration technology, applied in the field of image processing, can solve the problems of poor robustness of rotation transformation and low registration accuracy of multi-spectral images, etc., to achieve poor robustness, improve registration accuracy, and improve registration effect Effect

CN104992400BActive Publication Date: 2018-05-25BEIJING UNIV OF POSTS & TELECOMM
2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-05-25

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a multispectral image registration method and device. The method includes: determining the feature points in the reference image A and the image to be registered B; calculating the respective main directions of the reference image A and the image to be registered B; Image A and image B to be registered are rotated along their respective main directions; the rotated feature points are extracted; the rotated feature points are filtered; the edge area EOH descriptor of each feature point is calculated; the reference image A is The feature point with the smallest Euclidean distance of the EOH descriptor between the feature points to be matched in the image B to be matched is matched with the feature point to be registered; according to the matching feature points in the reference image A and the image B to be registered Register the reference image A and the image B to be registered. The multispectral image registration method and device provided by the present invention improve the registration effect of multispectral images under rotation and improve the accuracy of multispectral image registration.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to image processing technology, in particular to a multi-spectral image registration method and device. Background technique

[0002] Image registration is the process of matching two or more images of the same scene from different times, different sensors, different illuminance or different viewing angles, to achieve correct stitching between offset and rotated images. Multispectral image registration refers to the combination of multiple image information of the same scene obtained from the multispectral detector, using the temporal and spatial correlation of multiple images and the complementarity of information to obtain a comprehensive and comprehensive view of the scene. Clear description. However, the spectral information between multiple bands is added to the multispectral image. Due to different image detectors, the properties of the generated images are different. For example, there is no corresponding relationship betw...

Examples

Embodiment Construction

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] figure 1 It is a flow chart of the multispectral image registration method provided by Embodiment 1 of the present invention. Such as figure 1 As shown, the multispectral image registration method provided by the embodiment of the present invention includes:

[0034] S101: Determine the feature points in the reference image A and the ima...