The invention relates to the technical field of X-
ray imaging devices, in particular to a portable X-
ray imaging matching device for quickly screening
fish bone deformity, which comprises a fish body fixing and guiding module, a
radiation source positioning module, a bone alignment imaging module, a gray scale fracture detection module and a
deformity screening conclusion output module. According to the method, the influence of image interference information is reduced by comparing the position relation between the fitting point and the guiding track, pushing the
tail of the fish body to be aligned with the
guiding center line, continuously monitoring the offset position of the intersection point, correcting the corresponding relation between the
irradiation path and the axis of the fish body, extracting the skeleton
trunk area and removing edge fracture pixels; analyzing transverse contraction and included angle deviation trends in the image, delimiting abnormal position sections in the skeleton structure, highlighting the overall extension form and structural continuous trend of the skeleton contour in the image, and matching fish body individual differences and imaging environment changes to obtain a fish body image; and the
image identification degree, the abnormal response speed and the result judgment stability degree in the malformation screening process are improved.