Image acquisition method, device and X-ray filming machine

Abstract

The invention discloses an image acquisition method, a device and an X-ray filming machine. The image acquisition method comprises the following steps: the determination step: determining the start position and the end position of a region of interest, as well as the size of an overlap of the region of interest in adjacent two pictures; the calculation step: calculating the number of the pictures which need to be shot, the component of a field of view in the movement direction of a ball tube and the positions of the ball tube and a detector which correspond to each picture according to the start position and the end position of the region of interest and the size of the overlap; the shooting step: moving the ball tube and the detector to all the positions, and shooting the region of interest in the positions for obtaining a plurality of pictures; and the splicing step: splicing the plurality of the pictures into an image of the region of interest. The image acquisition device comprises a determination unit, a calculation unit, a shooting unit and a splicing unit. The X-ray filming machine comprises the image acquisition device. The adoption of the technical scheme can lead the acquired image to be more precise.

Description

technical field [0001] The present invention generally relates to the field of medical digital X-ray filming machines, in particular to an image acquisition method and device and an X-ray filming machine. Background technique [0002] In the medical field, an X-ray filming machine, such as an X-ray machine, is usually used to image a patient's region of interest, and the doctor then diagnoses and treats the patient based on the obtained image. Such as figure 1 As shown, an X-ray machine is illustrated, and its main components include an X-ray tube 1, an X-ray beam limiter 2, a patient fixer 3, and a detector 4, wherein the main function of the X-ray tube 1 is to emit X-rays. Light, the main function of the X-ray beam limiter 2 is to limit the irradiation range of the light field of the X-ray emitted by the X-ray tube 1, and the function of the detector 4 is to receive the X-ray and image it and then send it to the workstation for further processing. The role of the fixer 3...

AI Technical Summary

Problems solved by technology

Due to the manual operation, the work efficiency is low, and the final image of the region of interest is often inaccurate due to the different experience of different operators

[0009] US6944265, similar to US7177455, the disclosed overlap is defined on the picture plane, that is, the first picture and the second picture overlap, therefore, it also has an image similar to US7177455 that will eventually obtain the region of interest imprecise defect

Images