JPH0570462B2 - - Google Patents
Info
- Publication number
- JPH0570462B2 JPH0570462B2 JP63303466A JP30346688A JPH0570462B2 JP H0570462 B2 JPH0570462 B2 JP H0570462B2 JP 63303466 A JP63303466 A JP 63303466A JP 30346688 A JP30346688 A JP 30346688A JP H0570462 B2 JPH0570462 B2 JP H0570462B2
- Authority
- JP
- Japan
- Prior art keywords
- projection data
- data
- image
- value
- metal
- 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.)
- Expired - Lifetime
Links
- 239000002184 metal Substances 0.000 claims description 59
- 229910052751 metal Inorganic materials 0.000 claims description 59
- 238000013500 data storage Methods 0.000 claims description 36
- 238000012545 processing Methods 0.000 claims description 33
- 230000009467 reduction Effects 0.000 claims description 18
- 150000002739 metals Chemical class 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000012937 correction Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 7
- 238000007781 pre-processing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000010365 information processing Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000003325 tomography Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Apparatus For Radiation Diagnosis (AREA)
- Image Processing (AREA)
- Image Analysis (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63303466A JPH02149258A (ja) | 1988-11-30 | 1988-11-30 | 金属偽像等を低減する画像処理装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63303466A JPH02149258A (ja) | 1988-11-30 | 1988-11-30 | 金属偽像等を低減する画像処理装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02149258A JPH02149258A (ja) | 1990-06-07 |
| JPH0570462B2 true JPH0570462B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1993-10-05 |
Family
ID=17921304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63303466A Granted JPH02149258A (ja) | 1988-11-30 | 1988-11-30 | 金属偽像等を低減する画像処理装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02149258A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02195944A (ja) * | 1989-01-25 | 1990-08-02 | Shimadzu Corp | Ｘ線ｃｔ装置 |
| US6266388B1 (en) * | 1999-09-07 | 2001-07-24 | General Electric Company | Methods and apparatus for two-pass cone beam image reconstruction |
| JP5526062B2 (ja) * | 2010-03-31 | 2014-06-18 | 富士フイルム株式会社 | 放射線画像撮影装置および欠陥画素位置情報取得方法 |
| BR112014015659A8 (pt) * | 2011-12-27 | 2017-07-04 | Koninklijke Philips Nv | método para a remoção de artefatos de um gerador de campo em 3d de uma digitalização rotacional em 3d, sistema para a remoção de artefatos de um gerador de campo em 3d de uma digitalização rotacional em 3d, e produto de programa de computador |
-
1988
- 1988-11-30 JP JP63303466A patent/JPH02149258A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02149258A (ja) | 1990-06-07 |
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