Image registration method based on improved structural similarity
A technology of structural similarity and image registration, which is applied in the direction of instruments, character and pattern recognition, computer parts, etc., can solve the problems of unsolvable multi-modal image registration and large differences in image content, etc.
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[0057] The present invention will be further described below in conjunction with the accompanying drawings and examples (the following structural similarity SSIM refers to improved structural similarity).
[0058] The steps of the image registration method of the present invention are as follows:
[0059] 1. Input two images to be registered, which are respectively recorded as the reference image and the floating image;
[0060] 2. Coarse registration using the principal axis centroid method (Coarse registration): the image centroid is obtained by the first-order moment of the image, and then the angle between the principal axis and the coordinate system is obtained by the second-order central moment, so as to obtain four coarse registration parameter value[ x y r 1 ];
[0061] 3. Perform spatial geometric transformation on the floating image with the 4 parameter values of the coarse registration, and the obtained image is used as the floating image for fine registration, a...
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