JP2006105975A5 - - Google Patents
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- JP2006105975A5 JP2006105975A5 JP2005274871A JP2005274871A JP2006105975A5 JP 2006105975 A5 JP2006105975 A5 JP 2006105975A5 JP 2005274871 A JP2005274871 A JP 2005274871A JP 2005274871 A JP2005274871 A JP 2005274871A JP 2006105975 A5 JP2006105975 A5 JP 2006105975A5
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- JP
- Japan
- Prior art keywords
- detector
- sinogram data
- correction
- data
- beam hardening
- 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.)
- Granted
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- 238000002591 computed tomography Methods 0.000 claims 9
- 238000005259 measurement Methods 0.000 claims 8
- 238000000034 method Methods 0.000 claims 8
- 238000005457 optimization Methods 0.000 claims 3
- 238000007781 pre-processing Methods 0.000 claims 3
- 238000001228 spectrum Methods 0.000 claims 3
- 238000003384 imaging method Methods 0.000 claims 2
- 239000000126 substance Substances 0.000 claims 2
- 230000003595 spectral effect Effects 0.000 claims 1
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/955,623 US7215732B2 (en) | 2004-09-30 | 2004-09-30 | Method and system for CT reconstruction with pre-correction |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2006105975A JP2006105975A (ja) | 2006-04-20 |
| JP2006105975A5 true JP2006105975A5 (enExample) | 2008-11-06 |
| JP4656413B2 JP4656413B2 (ja) | 2011-03-23 |
Family
ID=35447174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005274871A Expired - Fee Related JP4656413B2 (ja) | 2004-09-30 | 2005-09-22 | 予備補正を備えたct再構成方法及びシステム |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7215732B2 (enExample) |
| EP (1) | EP1643447B1 (enExample) |
| JP (1) | JP4656413B2 (enExample) |
| DE (1) | DE602005003738T2 (enExample) |
Families Citing this family (43)
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|---|---|---|---|---|
| US7208717B2 (en) * | 2002-10-16 | 2007-04-24 | Varian Medical Systems Technologies, Inc. | Method and apparatus for correcting excess signals in an imaging system |
| US7376255B2 (en) * | 2004-06-23 | 2008-05-20 | General Electric Company | System and method for image reconstruction |
| US7251306B2 (en) * | 2004-11-17 | 2007-07-31 | General Electric Company | Methods, apparatus, and software to facilitate iterative reconstruction of images |
| DE102005019572A1 (de) * | 2005-04-27 | 2006-11-09 | Siemens Ag | Verfahren zur Auswertung und Darstellung von Röntgenprojektionsbildern und Röntgendurchsichtgerät |
| DE102005028216A1 (de) * | 2005-06-17 | 2006-12-28 | Siemens Ag | Vorrichtung und Verfahren für die Computertomographie |
| DE102005028225A1 (de) * | 2005-06-17 | 2007-05-24 | Siemens Ag | Vorrichtung und Verfahren für die Computertomographie |
| EP1946622A2 (en) * | 2005-10-06 | 2008-07-23 | Imaging Sciences International, Inc. | Scatter correction |
| US7298812B2 (en) * | 2006-03-31 | 2007-11-20 | General Electric Company | Image-based material decomposition |
| CN101405597B (zh) * | 2006-04-13 | 2012-05-23 | 株式会社岛津制作所 | 使用透过x射线的三维定量方法 |
| JP2008073342A (ja) * | 2006-09-22 | 2008-04-03 | Konica Minolta Medical & Graphic Inc | 放射線画像撮影システム及び放射線画像撮影方法 |
| DE102006046047A1 (de) * | 2006-09-28 | 2008-04-03 | Siemens Ag | Verfahren zur kombinierten Knochenaufhärtungs- und Streustrahlungskorrektur in der Röntgen-Computertomographie |
| US7551708B2 (en) * | 2007-02-07 | 2009-06-23 | General Electric Company | Method of iterative reconstruction for energy discriminating computed tomography systems |
| WO2008103435A1 (en) * | 2007-02-22 | 2008-08-28 | Indiana University Research & Technology Corporation | Imaging resolution recovery techniques |
| US8045776B2 (en) * | 2007-03-06 | 2011-10-25 | General Electric Company | Geometry-dependent filtering in CT method and apparatus |
| JP5076240B2 (ja) * | 2008-02-05 | 2012-11-21 | 富士フイルム株式会社 | 撮像装置、撮像方法、およびプログラム |
| US8660330B2 (en) | 2008-06-27 | 2014-02-25 | Wolfram Jarisch | High efficiency computed tomography with optimized recursions |
| CA2729166A1 (en) * | 2008-06-27 | 2009-12-30 | Wolfram R. Jarisch | High efficiency computed tomography |
| US8194820B2 (en) * | 2009-02-06 | 2012-06-05 | The Board Of Trustees Of The Leland Stanford Junior University | Optimal weights for measuring spectral x-ray data |
| CN101533098B (zh) * | 2009-04-08 | 2011-08-03 | 西北工业大学 | Ct射束硬化校正中的噪声抑制方法 |
| US8655033B2 (en) * | 2009-10-28 | 2014-02-18 | General Electric Company | Iterative reconstruction |
| JP5828841B2 (ja) * | 2010-10-14 | 2015-12-09 | 株式会社日立メディコ | X線ct装置及び画像再構成方法 |
| JP5922892B2 (ja) * | 2011-08-26 | 2016-05-24 | Ntn株式会社 | 転動体の検査方法および転動体の製造方法 |
| EP2792303A4 (en) * | 2011-12-18 | 2015-08-05 | Nat Univ Corp Kyoto Univ | MOTION-TRACKING X-RAY CT IMAGE PROCESSING AND MOTION-TRACKING X-RAY CT IMAGE PROCESSING DEVICE |
| EP2810245A4 (en) | 2012-02-03 | 2015-12-16 | Univ New York State Res Found | METHOD AND SYSTEMS FOR INVERSE PROBLEM RECONSTRUCTION AND APPLICATION FOR ECT RECONSTRUCTION |
| JP5883689B2 (ja) * | 2012-03-14 | 2016-03-15 | 株式会社日立製作所 | X線撮像装置およびx線撮像方法 |
| JP6031339B2 (ja) * | 2012-11-21 | 2016-11-24 | 富士フイルム株式会社 | 透視画像濃度補正方法、非破壊検査方法、及び画像処理装置 |
| KR101527656B1 (ko) * | 2013-12-12 | 2015-06-10 | 한국과학기술원 | 의료 영상에서 비강체 영상 정합을 이용한 점상 강도 분포 함수를 보간하는 방법 및 시스템 |
| US9415546B2 (en) * | 2014-01-29 | 2016-08-16 | Xerox Corporation | System and method for controlling material drop volume in three dimensional object printing |
| US9351697B2 (en) | 2014-03-04 | 2016-05-31 | General Electric Company | Method and system for dimensional analysis of an object |
| KR101783001B1 (ko) * | 2015-01-20 | 2017-09-28 | 삼성전자주식회사 | 단층 영상 장치 및 단층 영상의 이미징 방법 |
| CN104751429B (zh) * | 2015-01-27 | 2018-02-02 | 南方医科大学 | 一种基于字典学习的低剂量能谱ct图像处理方法 |
| CN106353828B (zh) * | 2015-07-22 | 2018-09-21 | 清华大学 | 在安检系统中估算被检查物体重量的方法和装置 |
| US10429323B2 (en) * | 2015-07-24 | 2019-10-01 | Photo Diagnostic Systems, Inc. | Method and apparatus for performing multi-energy (including dual energy) computed tomography (CT) imaging |
| KR101850871B1 (ko) * | 2015-08-26 | 2018-04-23 | 주식회사 디알텍 | 방사선 영상의 처리방법 및 방사선 촬영시스템 |
| KR101717433B1 (ko) * | 2015-09-01 | 2017-03-17 | 연세대학교 산학협력단 | 엑스레이 컴퓨터 단층촬영 환경에서 빔 경화현상에 의한 인공물 보정방법 |
| CN108242066B (zh) * | 2016-12-26 | 2023-04-14 | 通用电气公司 | Ct图像的空间分辨率增强装置和方法以及ct成像系统 |
| US10475214B2 (en) * | 2017-04-05 | 2019-11-12 | General Electric Company | Tomographic reconstruction based on deep learning |
| US10573030B2 (en) | 2017-04-07 | 2020-02-25 | Photo Diagnostic Systems, Inc. | Method for artifact reduction using monoenergetic data in computed tomography |
| US10426424B2 (en) | 2017-11-21 | 2019-10-01 | General Electric Company | System and method for generating and performing imaging protocol simulations |
| DE102018103714A1 (de) * | 2018-02-20 | 2019-08-22 | Volume Graphics Gmbh | Verfahren zur Bestimmung von Fehlern von aus digitalen Objektdarstellungen abgeleiteten Parametern |
| EP3571997B1 (de) | 2018-05-23 | 2022-11-23 | Siemens Healthcare GmbH | Verfahren und vorrichtung zum bestimmen eines patientenge-wichts und/oder eines body-mass-index |
| JP7220777B2 (ja) * | 2019-03-29 | 2023-02-10 | 富士フイルム株式会社 | 画像処理装置、放射線画像撮影システム、画像処理方法、及び画像処理プログラム |
| CN114152637B (zh) * | 2022-02-07 | 2022-04-26 | 东莞市志橙半导体材料有限公司 | 一种硬质碳化硅材料打孔检测装置与方法 |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63147440A (ja) * | 1986-12-12 | 1988-06-20 | 横河メディカルシステム株式会社 | X線断層撮影装置のデコンボリユ−シヨン処理方法 |
| DE69129008T2 (de) * | 1990-07-02 | 1998-08-20 | Varian Associates | Röntgenstrahlentherapiesimulator |
| US5099505A (en) * | 1990-07-02 | 1992-03-24 | Varian Associates | Method for increasing the accuracy of a radiation therapy apparatus |
| US5265013A (en) | 1990-11-19 | 1993-11-23 | General Electric Company | Compensation of computed tomography data for X-ray detector afterglow artifacts |
| US5359638A (en) * | 1992-03-30 | 1994-10-25 | General Electric Company | Method for recursive filtering residual afterglow from previous computed tomography scans |
| US5878108A (en) * | 1995-11-30 | 1999-03-02 | Hitachi Medical Corporation | Method for generating X-ray image and apparatus therefor |
| US5774521A (en) * | 1996-07-08 | 1998-06-30 | Cedars-Sinai Medical Center | Regularization technique for densitometric correction |
| US6067342A (en) * | 1997-10-30 | 2000-05-23 | Analogic Corporation | Digital filmless X-ray projection imaging system and method |
| US6928182B1 (en) * | 1998-10-15 | 2005-08-09 | Kui Ming Chui | Imaging |
| US6285799B1 (en) * | 1998-12-15 | 2001-09-04 | Xerox Corporation | Apparatus and method for measuring a two-dimensional point spread function of a digital image acquisition system |
| US6345113B1 (en) * | 1999-01-12 | 2002-02-05 | Analogic Corporation | Apparatus and method for processing object data in computed tomography data using object projections |
| EP1072861B1 (en) | 1999-05-10 | 2006-05-10 | GE Inspection Technologies GmbH | Method for measuring the wall thickness of a tubular object |
| US6421409B1 (en) | 2000-02-02 | 2002-07-16 | Ut-Battelle Llc | Ultra-high resolution computed tomography imaging |
| US6842502B2 (en) * | 2000-02-18 | 2005-01-11 | Dilliam Beaumont Hospital | Cone beam computed tomography with a flat panel imager |
| JP3837495B2 (ja) * | 2002-02-28 | 2006-10-25 | 独立行政法人産業技術総合研究所 | 光イメージングシステム |
| US6850589B2 (en) * | 2002-03-27 | 2005-02-01 | Agilent Technologies, Inc. | Tomography of curved surfaces |
| US7254209B2 (en) * | 2003-11-17 | 2007-08-07 | General Electric Company | Iterative CT reconstruction method using multi-modal edge information |
| US7376255B2 (en) * | 2004-06-23 | 2008-05-20 | General Electric Company | System and method for image reconstruction |
| US7203267B2 (en) * | 2004-06-30 | 2007-04-10 | General Electric Company | System and method for boundary estimation using CT metrology |
-
2004
- 2004-09-30 US US10/955,623 patent/US7215732B2/en not_active Expired - Fee Related
-
2005
- 2005-09-14 DE DE602005003738T patent/DE602005003738T2/de not_active Expired - Lifetime
- 2005-09-14 EP EP05255628A patent/EP1643447B1/en not_active Expired - Lifetime
- 2005-09-22 JP JP2005274871A patent/JP4656413B2/ja not_active Expired - Fee Related
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