Bias scanning mode industrial CT system rotating table rotating center calibration method
A scanning mode and rotation center technology, which is applied in the field of calibration of the rotation center of the turntable of the industrial CT system in the offset scanning mode, can solve problems such as difficult to achieve fast and accurate calibration of the projection position of the rotation center, shorten the running time of the algorithm, improve the detection efficiency, The effect is simple and convenient
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[0034] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0035] Before describing the method for calibrating the rotation center of the turntable of the industrial CT system in the offset scanning mode provided by the present invention, the standard fan beam scanning mode will be explained first.
[0036] image 3 is the equivalent schematic diagram of the standard fan beam scanning mode in the prior art, such as image 3 As shown, during standard fan beam scanning, when the line connecting the radiation source 1 and the rotation center O is perpendicular to the detector 5, the radiation source 1 and the detector remain stationary, and the scanned slice rotates 360° around the rotation axis. This scanning process is equivalent...
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