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Image matching method based on cyclic blocking phase correlation method

A phase correlation and image matching technology, applied in the field of remote sensing surveying and mapping, can solve problems such as wrong matching and matching ambiguity, and achieve the effect of improving the success rate of matching and the degree of automation

Inactive Publication Date: 2010-12-08
GUILIN UNIVERSITY OF TECHNOLOGY +1
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

In stereoscopic image matching, due to the characteristics of occlusion, projection distortion, and texture repetition in the image, there is often a phenomenon that multiple points correspond to one point matching, resulting in ambiguity in matching and wrong matching.

Method used

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  • Image matching method based on cyclic blocking phase correlation method
  • Image matching method based on cyclic blocking phase correlation method
  • Image matching method based on cyclic blocking phase correlation method

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Embodiment

[0019] The input data required by the present invention can be remote sensing images or aerial images in any format, where only translation transformation between the image to be matched and the reference image is required, and at least one pair of matched points in the reference image and the image to be matched is required. The matched output is in TXT text format. The reference image and the image to be matched in this embodiment are both aerial images with a size of 2048×2048, and there is already a pair of matched points in the image.

[0020] use as figure 2 The detailed flow chart of the technical scheme of the image matching method based on the cyclic block phase correlation method is shown. The specific implementation steps of using the cyclic block phase correlation method to match the entire image of the image are as follows:

[0021] (1) Classify the points on the image:

[0022] Divide the matched points in the reference image and the image to be matched into t...

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Abstract

The invention discloses an image matching method based on a cyclic blocking phase correlation method. The method comprises the following steps: using one or more of matched point pairs on the image as the seed point pair(s), and matching the eight domain inner points by using the cyclic blocking phase correlation method; and using the matched points as the seed points, and matching the eight domain inner points until all the points in the image are matched, thereby realizing point-by-point matching of the image. The invention increases the matching success rate and automation degree of the matching algorithm. The method can be used for obtaining correct matching results for flat regions, rugged regions and regions with broken textures, except for the regions which seriously lack in textures or have severe barriers. The overall matching precision rate of the method is obviously superior to the publicly known optimal correlation coefficient method in the basic matching methods.

Description

technical field [0001] The invention relates to an image matching method of a cyclic block phase correlation method, which uses a pair or multiple pairs of matched points on the image as seed point pairs, and adopts a cyclic block phase correlation method to realize point-by-point matching of images, belonging to the field of remote sensing surveying and mapping . Background technique [0002] The essence of image matching is to identify points with the same name between two (or more) images. Image matching is the core issue of computer vision and digital photogrammetry, the key technology of 3D information acquisition and reconstruction, and the basis of many remote sensing image processing applications. Image matching has been valued by more and more fields and has become a very important technology in modern information processing. It has been widely used in resource analysis, image registration, change detection, target recognition, automatic navigation, industrial desi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/64
Inventor 韦春桃张祖勋张剑清吴平程晓宇
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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