Automatic positioning system and method in ray shooting process

Abstract

The invention provides an automatic positioning system and method in a ray shooting process. The automatic positioning system comprises a ray generation device, a flat panel detector, a camera shooting device, an acceleration sensor and an execution mechanism, wherein the execution mechanism controls the ray generation device to carry out position regulation to realize alignment with the flat panel detector. On the basis of the acceleration sensor and the execution mechanism, an automatic calibration method of a detection position in the ray shooting process can be realized, the position of the ray generation device can be automatically regulated in the ray shooting process, and therefore, the alignment of the position of the ray generation device, the position of an object to be shot and the position of the flat panel detector can be realized. On the basis of the design of the invention, on the basis of introduction of the acceleration sensor, the dip angle of the flat panel detector is obtained, an influence on alignment and shooting by a dip angle problem can be eliminated, meanwhile, the execution mechanism is combined, a user does not need to move, after the detector carries out the alignment, the system automatically carries out calibration, a phenomenon that calibration judgment is affected due to the influence of a shielding object can be avoided, time is avoided, and alignment accuracy is improved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a shooting system for clinical diagnostic samples and an automatic detection and positioning system in the process of X-ray shooting. Background technique [0002] In the existing image chain, the X light source, the center of the light beam, and the center of the flat panel detector are located on the same straight line, the position is relatively fixed and there is only one degree of freedom (moving up and down), and the conical beam emitted by the X light source passes through the light beam , forming a beam of specific shape and size, which passes through the object to be photographed and is received by a flat panel detector located behind the object. [0003] Since the light beam passing through the beam device and the flat-panel detector have a specific size and shape, they only image a certain part of the object to be photographed. When the part to be p...

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