JP2000184284A5 - X-ray equipment - Google Patents
X-ray equipment Download PDFInfo
- Publication number
- JP2000184284A5 JP2000184284A5 JP1998374936A JP37493698A JP2000184284A5 JP 2000184284 A5 JP2000184284 A5 JP 2000184284A5 JP 1998374936 A JP1998374936 A JP 1998374936A JP 37493698 A JP37493698 A JP 37493698A JP 2000184284 A5 JP2000184284 A5 JP 2000184284A5
- Authority
- JP
- Japan
- Prior art keywords
- ray equipment
- ray
- shading
- image intensifier
- equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003705 background correction Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000003287 optical Effects 0.000 description 2
- 241001442055 Vipera berus Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
Description
【特許請求の範囲】
【請求項１】
被検体にＸ線を照射するＸ線管と、
このＸ線管に対向配置され前記被検体の透視Ｘ線を光学像に変換するイメージインテンシファイアと、
このイメージインテンシファイアによって変換された光学像を映像信号に変換するＴＶカメラと、
前記イメージインテンシファイアのシェーデング補正を行うシェーデング除去装置とを備えたＸ線撮影装置において、
前記シェーデング除去装置は、前記ＴＶカメラからの映像信号を入力データ変換テーブルメモリにより対数変換した対数データと、シェーデングメモリからの所望のイメージインテンシファイアのシェーデング補正用対数データとを加算器により加算することを特徴とするＸ線撮影装置。
[Claims]
[Claim 1]
An X-ray tube that irradiates the subject with X-rays,
An image intensifier that is placed facing the X-ray tube and converts the fluoroscopic X-ray of the subject into an optical image,
A TV camera that converts the optical image converted by this image intensifier into a video signal,
In an X-ray imaging apparatus provided with a shading removing apparatus for performing shading correction of the image intensifier.
The shading removal device adds the logarithmic data obtained by logarithmically converting the video signal from the TV camera by the input data conversion table memory and the logarithmic data for shading correction of the desired image intensifier from the shading memory by an adder. An X-ray imaging device characterized by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10374936A JP2000184284A (en) | 1998-12-11 | 1998-12-11 | Shading elimination device in x-ray image pickup device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10374936A JP2000184284A (en) | 1998-12-11 | 1998-12-11 | Shading elimination device in x-ray image pickup device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000184284A JP2000184284A (en) | 2000-06-30 |
| JP2000184284A5 true JP2000184284A5 (en) | 2006-01-26 |
Family
ID=18504685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10374936A Pending JP2000184284A (en) | 1998-12-11 | 1998-12-11 | Shading elimination device in x-ray image pickup device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000184284A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7248671B2 (en) * | 2002-06-26 | 2007-07-24 | Kabushiki Kaisha Toshiba | X-ray diagnosis apparatus |
| JP6995653B2 (en) * | 2018-01-31 | 2022-01-14 | 東芝Ｉｔコントロールシステム株式会社 | Radiation inspection equipment and radiation inspection method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01200482A (en) * | 1988-02-05 | 1989-08-11 | Toshiba Corp | Picture display device |
| JPH03114443A (en) * | 1989-09-29 | 1991-05-15 | Hitachi Medical Corp | Digital x-ray television apparatus |
| JPH07154694A (en) * | 1993-11-25 | 1995-06-16 | Hitachi Medical Corp | X-ray digital image pickup device |
| JPH07327169A (en) * | 1994-05-31 | 1995-12-12 | Shimadzu Corp | Digital x-ray radio graphing device |
| JPH09322063A (en) * | 1996-05-30 | 1997-12-12 | Hitachi Medical Corp | X-ray radiographic image diagnostic device |
-
1998
- 1998-12-11 JP JP10374936A patent/JP2000184284A/en active Pending
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