IMAGE PROCESSING DEVICE

摘要

According to the image processing device of the present invention, the binarization image having increasing assuredness can be generated by extracting the metal piece from the original image with the graph cut processing. The image processing device of the present invention is the system that executes an image trimming from near the center of the intermediate region after the metal piece is divided relative to the image of the roughly extracted binarization image near the center of the intermediate region in that it is difficult to decide whether it belongs to the metal piece or not. Following such steps, the intermediate region can be assuredly trimmed while executing the image trimming in the region as small as possible.

主权项

1. An image processing device, that operably executes an image processing on an original image incorporating a metal piece obtained by a radiation imaging of a subject having an implanted metal piece inside, comprises:
a binarization module that operably generates a binarization image incorporating a rough metal piece incorporated into said original image by conducting a binarization of said original image; an edge extraction processing module that operably generates an edge extraction image, wherein a boundary indicating a position near a center of an intermediate region between a region exposed more to radiation and a region exposed less thereto relative to said original image is extracted by conducting an operable edge extraction processing on said original image; an image synthesis module that generates a synthetic image, wherein an image on said binarization image is operably divided near the center region of said intermediate region by superimposing said binarization image and said edge extraction image; a profile trimming module that generates a profile trimming metal map, wherein said intermediate region is trimmed from the image on said synthetic image by a trimming of the profile of the image on said synthetic image; and a graph cut module that generates an extraction image, wherein the image of the metal piece incorporated into said original image is extracted by executing a graph cut processing relative to said original image while recognizing that the image on said profile trimming metal map that constitutes a region of the metal piece incorporated into said original image.