Patent ID: 9697624
Date: 2017-07-04
CPC Classifications: G01N,G06T

Claim:
1. An image processing apparatus comprising: a map generation block configured to generate a gradient vector map by calculating gradient vectors showing an extending direction of a linear structural object seen in a series of images consecutively acquired while moving a radiation source for irradiating an X-ray to a subject and a radiation detection means for detecting the X-ray passed through the subject synchronously in opposite directions and arranging the vectors; an extrapolation block configured to generate a series of extrapolated images by adding a duplicate of an area positioned at a side section of the images to the side section of the images so that the linear structural object seen in the side section of the images is arranged in the extending direction of the linear structural object; and a tomographic image generation block configured to generate a tomographic image by superimposing the extrapolated images, wherein the extrapolation block is configured to perform image processing to both end sections of the images in a direction in which the radiation source and the radiation detection means move.