A Tomographic Slice Image Registration Method Based on Object Pixel Projection Judgment
An image registration and target technology, applied in the field of image processing, can solve the problems of low efficiency, long time consumption, complicated calculation, etc., and achieve the effect of improving efficiency, improving accuracy and robustness, and reducing the amount of calculation.
Inactive Publication Date: 2017-08-25
YANCHENG INST OF TECH
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In the past, when images were matched, there were disadvantages such as complex calculation, large amount of calculation, long time consumption, and poor efficiency.
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[0045] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
[0046] During the registration operation of the floating image, it mainly includes two aspects of angle registration and translation registration.
[0047] In the method disclosed in the present invention, the image registration process is as follows Figure 8 shown. The tomographic slice image registration method based on target pixel projection judgment, the specific steps include:
[0048] Step 1. Binarize the reference image and the floating image to distinguish the target object from the background;
[0049] Step 2, taking the reference image as a reference, performing an angle registration operation on the floating image to obtain the rotation angle of the binarized floating image;
[0050] Step 3, using the reference image as a benchmark, perform a translation registration operation on the floating image to obtain the horizontal and verti...
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The invention discloses a fault slice image registration method based on a target object pixel projection judgment. Firstly, binarization processing is conducted on a reference image and a floating image, target objects and background areas of the reference image and the floating image are differentiated, the floating image is rotated according to a designated micro angle increment, the number of target pixels of the floating image on each pixel column is calculated each time the floating image is rotated, calculation is conducted, the difference of the number of the target pixels of the floating image on each pixel column and the number of target pixels of the reference image on each pixel column is obtained, the absolute values of all difference values are summed up, when the obtained value is the minimum, the angle registration of the floating image at the moment is judged to be optimal, then registration is conducted on the horizontal moving of the floating image, the floating image horizontally moves with the single pixels serving as the increments in a given range in the X direction and the Y direction of the plane, each time the floating image horizontally moves, the number of the target pixels, at the same coordinate points with the reference image, of the floating image is calculated, and when the value is the maximum, perfect registration is achieved on the floating image and the reference image.
Description
technical field [0001] The invention discloses a tomographic slice image registration method based on object pixel projection judgment, and relates to the technical field of image processing. Background technique [0002] Image registration is a very common research content in the field of image processing, and this research has gradually gained attention since the early 1990s. As a basic image processing technology, it has been widely used in many fields. In the decades since the introduction of image registration, with the rapid development and popularization of computer science and technology, image registration It is used in many application fields, such as medical applications, computer-aided manufacturing, robotics, etc. [0003] Image registration is especially useful in medical applications. For example, in clinical scenarios such as patient follow-up and surgery or therapy planning. In order for medical experts to compare medical images in an accurate manner, the...
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IPC IPC(8): G06T7/30
CPCG06T7/30
Inventor 袁铁军孟龙晖张秀丽
Owner YANCHENG INST OF TECH