IL94627A - Compensation of computed tomography data for objects positioned outside the field of view of the reconstructed image - Google Patents

Compensation of computed tomography data for objects positioned outside the field of view of the reconstructed image

Info

Publication number
IL94627A
IL94627A IL94627A IL9462790A IL94627A IL 94627 A IL94627 A IL 94627A IL 94627 A IL94627 A IL 94627A IL 9462790 A IL9462790 A IL 9462790A IL 94627 A IL94627 A IL 94627A
Authority
IL
Israel
Prior art keywords
compensation
view
field
computed tomography
positioned outside
Prior art date
Application number
IL94627A
Other languages
English (en)
Original Assignee
Gen Electric
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gen Electric filed Critical Gen Electric
Publication of IL94627A publication Critical patent/IL94627A/xx

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/432—Truncation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Analysis (AREA)
  • Medical Treatment And Welfare Office Work (AREA)
  • Image Processing (AREA)
IL94627A 1989-06-12 1990-06-06 Compensation of computed tomography data for objects positioned outside the field of view of the reconstructed image IL94627A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/364,958 US5043890A (en) 1989-06-12 1989-06-12 Compensation of computed tomography data for objects positioned outside the field of view of the reconstructed image

Publications (1)

Publication Number Publication Date
IL94627A true IL94627A (en) 1993-05-13

Family

ID=23436870

Family Applications (1)

Application Number Title Priority Date Filing Date
IL94627A IL94627A (en) 1989-06-12 1990-06-06 Compensation of computed tomography data for objects positioned outside the field of view of the reconstructed image

Country Status (5)

Country Link
US (1) US5043890A (ja)
EP (1) EP0403209A1 (ja)
JP (1) JPH0661328B2 (ja)
CA (1) CA2010135A1 (ja)
IL (1) IL94627A (ja)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2575523B2 (ja) * 1990-08-09 1997-01-29 三菱電機株式会社 実時間演算結果表示方式
US5611026A (en) * 1992-12-21 1997-03-11 General Electric Company Combining a priori data with partial scan data to project three dimensional imaging of arbitrary objects with computerized tomography
JP3414471B2 (ja) * 1994-01-24 2003-06-09 株式会社東芝 Ｘ線ｃｔ装置
JP4130055B2 (ja) * 2000-08-31 2008-08-06 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー 加算断層画像作成方法およびｘ線ｃｔ装置
US6856666B2 (en) * 2002-10-04 2005-02-15 Ge Medical Systems Global Technology Company, Llc Multi modality imaging methods and apparatus
US6810102B2 (en) 2002-10-04 2004-10-26 Ge Medical Systems Global Technology Company, Llc Methods and apparatus for truncation compensation
US7254259B2 (en) * 2002-10-04 2007-08-07 Ge Medical Systems Global Technology Company Llc Methods and apparatus for truncation compensation
KR20030019278A (ko) * 2002-11-21 2003-03-06 기태형 여과장치가 구비된 활어 수입/수출용 컨테이너
US20040120566A1 (en) * 2002-12-19 2004-06-24 Gines David L. Compact storage of projection matrix for tomography using separable operators
CN100435732C (zh) * 2004-04-29 2008-11-26 Ge医疗系统环球技术有限公司 图像重构方法及x射线ct装置
US7050528B2 (en) * 2004-09-30 2006-05-23 Wisconsin Alumni Research Foundation Correction of CT images for truncated or incomplete projections
EP1904976A2 (en) * 2005-07-05 2008-04-02 Philips Intellectual Property & Standards GmbH Reconstruction algorithm for object point outside the scan-field-of-view
US7756315B2 (en) * 2005-11-23 2010-07-13 General Electric Company Method and apparatus for field-of-view expansion of volumetric CT imaging
US8213694B2 (en) * 2008-02-29 2012-07-03 Barco N.V. Computed tomography reconstruction from truncated scans
US10706595B2 (en) 2017-03-13 2020-07-07 General Electric Company System and method for reconstructing an object via tomography
CN108596993B (zh) * 2018-02-26 2022-07-12 上海奕瑞光电子科技股份有限公司 校正图像不饱和伪影的系统及校正方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5459856A (en) * 1977-10-21 1979-05-14 Hitachi Medical Corp Xxray sectional image reproducer
JPS5536329A (en) * 1978-08-31 1980-03-13 Oda Gosen Kogyo Kk Composite crimped yarn
US4305127A (en) * 1979-11-29 1981-12-08 Technicare Corporation Projection completion method of partial area scan
JPS58149739A (ja) * 1982-02-28 1983-09-06 株式会社島津製作所 コンピユ−タ断層撮影装置
US4550371A (en) * 1982-09-27 1985-10-29 General Electric Company Method and apparatus for compensating CT images for truncated projections
NL8204086A (nl) * 1982-10-22 1984-05-16 Philips Nv Werkwijze en inrichting voor het bepalen van een stralingsverzwakkingsverdeling in een vlak van een lichaam.
US4633398A (en) * 1983-12-07 1986-12-30 General Electric Company Attenuation compensated emission reconstruction with simultaneous attenuation factor evaluation
US4606004A (en) * 1984-03-21 1986-08-12 General Electric Company Apparatus for reduction of filtration truncation errors
JPH0652301B2 (ja) * 1985-04-11 1994-07-06 株式会社東芝 エミツシヨンｃｔ装置
NL8601004A (nl) * 1986-04-21 1987-11-16 Philips Nv Computertomografie-inrichting met gekombineerd recursief- en convolutiefilter.
CA1274922A (en) * 1987-09-11 1990-10-02 Terence Taylor Region of interest tomography employing a differential scanning technique

Also Published As

Publication number Publication date
JPH0661328B2 (ja) 1994-08-17
EP0403209A1 (en) 1990-12-19
JPH0375045A (ja) 1991-03-29
US5043890A (en) 1991-08-27
CA2010135A1 (en) 1990-12-12

Similar Documents

Publication Publication Date Title
US5313511C1 (en) X-ray imaging particularly adapted for low z materials
GB2244899B (en) X-ray computer tomography apparatus
EP0467532A3 (en) Computed tomography system
GB9124352D0 (en) Producing medical images
EP0428348A3 (en) Helical scanning computed tomography
IL79559A0 (en) Contrast agents for nmr medical imaging
GB2244900B (en) X-ray computer tomography system
EP0430549A3 (en) Helical scan computed tomography
IL94627A (en) Compensation of computed tomography data for objects positioned outside the field of view of the reconstructed image
EP0549180A3 (en) Segmented detector for computer tomography scanner
IL99997A0 (en) Compensation of computed tomography data for x-ray detector afterglow artifacts
EP0744158A3 (en) Computer tomography scanner
GB2255887B (en) Electron beam x-ray computer tomography scanner
EP0473292A3 (en) Overcoat for imaging members
FR2631132B1 (fr) Detecteur d'images radiologiques
IL97472A0 (en) High precision x-ray collimator
GB2250410B (en) Gantry for nuclear medicine imaging systems
EP0164626A3 (en) Nuclear imaging tomography
EP0430550A3 (en) Helical scan computed tomography
DE69121636D1 (de) Röntgenbild-Aufnahmeverfahren
EP0434368A3 (en) Electrophotographic imaging members
EP0444677A3 (en) X-ray radiographing system
GB9213492D0 (en) Applied potential tomography
AU550866B2 (en) Industral radiographic imaging
EP0423763A3 (en) X-ray fluorescence imaging of elements

Legal Events

Date Code Title Description
KB Patent renewed
KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees