Image positioning method, device, storage medium and equipment based on coordinate transformation

Abstract

The invention provides an image positioning method and device based on coordinate transformation, a storage medium and equipment, and the method comprises the steps: obtaining a preset CT or MRI DCM file sequence, and selecting a target work set from the file sequence according to the serial number information and / or instance number information of each DCM file in the DCM file sequence; establishing a three-dimensional model based on the DCM file in the target work set; determining key position points including target object position points in a horizontal position view, a sagittal position view and a coronal position view of the three-dimensional model, and establishing a target coordinate system based on the key position points; converting the original coordinate data of each key position point into a target coordinate value of the key position point in a target coordinate system; converting the target coordinate values of all points on the sagittal tangent plane and the coronal tangent plane of the target object under the target coordinate system into original coordinate values of all points in the DCM file, and positioning the target object according to the original coordinatevalues of all points, so that the image positioning of the target object can be efficiently and accurately realized.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image positioning method, device, storage medium and equipment based on coordinate transformation. Background technique [0002] Both CT and MRI belong to higher-level imaging examinations. Among them, CT forms images through the tomography of X-rays in the computer; MRI forms images through the positioning of nuclear magnetic shocks. CT scans slices plainly; MRI scans horizontally and vertically, and cuts vertically. In the prior art, it usually only relies on the original CT or MRI scans for rough measurement and positioning; or by placing markers and scanning again for rough positioning, not only will the patient receive irradiation again, the cost will increase, and errors will often occur. [0003] A CT or MRI image can be considered as a matrix of CT or MRI values, where each value represents a pixel, and each pixel corresponds to a fixed three-dimensio...

AI Technical Summary

Problems solved by technology

Although there are many post-processing workstations for CT or MRI images, most of the CT or MRI images are not up to standard due to the operation of technicians and the position of patients, etc.

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