Calibration method of camera in CT system
A calibration method and camera technology, applied in the field of medical imaging, can solve the problems of complicated calculation, poor portability, and large size of the customized calibration board, and achieve the effect of reducing the complexity, high convenience, and cost.
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[0034] The present invention will be further described below with reference to the drawings and specific embodiments.
[0035] figure 1 Shown is a flowchart of an embodiment of a method for calibration of a camera in a CT system according to the present invention, such as figure 1 As shown, the method includes the following steps:
[0036] S1: Set up a camera above the CT bed to keep the camera position and angle of view fixed;
[0037] S2: Select one or more corner points of the hospital bed as the reference point, let the hospital bed move in the same direction and equidistantly, and collect the image of the hospital bed through the camera every time it moves. From all the collected images, select the reference point to be away from the camera when collecting The nearest image in the center is used as the standard image;
[0038] S3: Establish the camera perspective coordinate system, and detect the coordinates of the corner points of the hospital bed in the camera perspective coord...
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