Triangulation optical matching based medical image rigid registration method

Abstract

The invention discloses a triangulation optical matching based medical image rigid registration method. The triangulation optical matching based medical image rigid registration method comprises obtaining three-dimensional medical image data; segmenting to obtain identical tissues and organs in a three-dimensional medical image; extracting surface point cloud information of the tissues and organs; subdividing the point clouds of the two groups of tissues and organs into a set of two groups of a plurality of tetrahedrons through a triangulation method; selecting any tetrahedron from the two groups of the plurality of tetrahedrons, performing rigid registration on the two tetrahedrons and obtaining a rotation matrix and a translation vector; calculating the range error of the two groups of point clouds according to the obtained rotation matrixes and the translation vectors and selecting the rotation matrix and the translation vector with the minimum range error to be served as an optimal registration matrix; horizontally moving the three-dimensional medical image in a rotary mode and fuse display the three-dimensional medical image. The triangulation optical matching based medical image rigid registration method can accurately achieve matching of the three-dimensional medical image and provides theoretical basis for clinical multi-modal image fusion display.

Description

technical field [0001] The invention relates to a medical image rigid registration method based on triangulation optimization matching, which is suitable for the field of medical image registration fusion display. Background technique [0002] Medical image registration is to transform medical images from the same or different imaging methods to match their spatial positions and coordinates. The result of registration is to make all anatomical points on the two images match, at least all points of diagnostic significance and points of surgical interest. With the development of medical imaging engineering and computer technology, medical imaging has become an indispensable part of modern medicine. Its application runs through the entire clinical work, not only in the diagnosis of diseases, but also in the planning design of surgical operations and radiation therapy. , program implementation, and efficacy evaluation all play an important role. However, due to the different i...

AI Technical Summary

Problems solved by technology

Although a large number of registration methods have been proposed so far, there are still defects in the medical image registration method, such as high algorithm complexity, low registration accuracy, and poor automation.

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