Title:
【発明の名称】X線断層撮影装置
Document Type and Number:
Japanese Patent JP3166194
Kind Code:
B2
Abstract:
PURPOSE:To simply obtain a desired tomographic image and obtain the depth thereof by deciding the image shifting amount in such a manner that a concerned area overlaps to superpose an image, and correcting distortion of an image caused by unevenness of an image reception area. CONSTITUTION:An X-ray tube 2 and an image receiving system are moved in the opposite directions, with an object taken as the center, and video signals of a series of images are output from a TV camera 4. The video signals are converted to digital data in a digital X-ray image collecting portion of an image processor 5 and stored in an image data storage portion 7. Among the images, at least two suitable sheets are read and displayed on an image display device 10 to set a concerned area. Each image is shifted by the shifting amount obtained from a projection angle by calculation to conduct image synthesizing processing. Though the depth of a tomographic surface is calculated by a data processing portion 9, correction to projection points on a flat plane is made because an image is distorted by a curved surface of an image reception area.
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Inventors:
Yukihiro Kou
Application Number:
JP9330391A
Publication Date:
May 14, 2001
Filing Date:
March 31, 1991
Export Citation:
Assignee:
SHIMADZU CORPORATION
International Classes:
A61B6/02; (IPC1-7): A61B6/02
Domestic Patent References:
| JP1136634A | ||||
| JP63290548A |
Attorney, Agent or Firm:
Yusuke Sato