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Radioactive ray camera and processing method of radioactive ray detection signal

A technology of radiation detection and radiographic imaging, which is applied in the fields of radiation diagnostic equipment, medical science, diagnosis, etc., can solve the problems of processing time and time, and achieve the effect of reducing time

Inactive Publication Date: 2010-04-14
SHIMADZU SEISAKUSHO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, even if the number of pixels of the first image is reduced in the loss correction stage, the loss correction itself takes processing time, so it still takes time until the confirmation image is output.

Method used

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  • Radioactive ray camera and processing method of radioactive ray detection signal
  • Radioactive ray camera and processing method of radioactive ray detection signal
  • Radioactive ray camera and processing method of radioactive ray detection signal

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Embodiment

[0042] Hereinafter, embodiments of the present invention will be described with reference to the drawings. figure 1 Is a block diagram of the X-ray fluoroscopy imaging device of the embodiment, figure 2 It is the equivalent circuit of a flat-panel X-ray detector used in the side view of an X-ray radiography device, image 3 It is the equivalent circuit of a flat-panel X-ray detector in plan view. In this embodiment, as the radiation detection component, a flat-panel X-ray detector (hereinafter referred to as "FPD" as appropriate) is taken as an example, and as a radiography apparatus, an X-ray fluoroscopic imaging apparatus is taken as an example for description.

[0043] The X-ray fluoroscopic imaging device of this embodiment is as figure 1 As shown, a bed board 1 on which a subject M is placed, an X-ray tube 2 for irradiating X-rays to the subject M, and an FPD 3 for detecting X-rays transmitted through the subject M are provided. The X-ray tube 2 corresponds to the radiation ...

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Abstract

A radiographic imaging device comprising first, second, and third image processing units. The first image processing unit outputs a first image in response to a radiation detection signal. The secondimage processing unit carries out a second image processing including at least a processing of the first image the number of pixels of which is reduced according to a pixel arrangement map showing pixel arrangement information and outputs a second image. The third image processing unit outputs a third image used as a final radiographic image from the first image. Since the pixel arrangement map iscreated previously, the time required until the output of the second image can be shortened correspondingly to the pixel arrangement map. As a result, the time required until the output of an image forcheck can be reduced.

Description

Technical field [0001] The present invention relates to a radiation imaging device and a radiation detection signal processing method that irradiate a subject and obtain a radiation image based on the detected radiation detection signal, and in particular relates to the output of an image after image processing. Background technique [0002] As an example of a radiation imaging device, an imaging device that detects X-rays to obtain X-ray images performs the following processing. That is, after irradiating X-rays to the subject and detecting the X-rays transmitted through the subject by the detector, gamma curve conversion, spatial frequency processing corresponding to imaging components, and automatic brightness are performed on the detected signal. Adjustment and other processing. After these multiple images are processed, they are displayed on a monitor and sintered into a film. [0003] In the past, an image intensifier (I.I) was used as an X-ray detector, but in recent years...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/00
CPCA61B6/488A61B6/00
Inventor 冈村升一
Owner SHIMADZU SEISAKUSHO CO LTD