FR2544939B1 - Systeme et procede de reprojection d'images acquises par retroprojection en tomodensitographie - Google Patents

Systeme et procede de reprojection d'images acquises par retroprojection en tomodensitographie

Info

Publication number
FR2544939B1
FR2544939B1 FR848406360A FR8406360A FR2544939B1 FR 2544939 B1 FR2544939 B1 FR 2544939B1 FR 848406360 A FR848406360 A FR 848406360A FR 8406360 A FR8406360 A FR 8406360A FR 2544939 B1 FR2544939 B1 FR 2544939B1
Authority
FR
France
Prior art keywords
tomodensitography
backprojection
computer
images acquired
reprojecting
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
Application number
FR848406360A
Other languages
English (en)
Other versions
FR2544939A1 (fr
Inventor
Carl Ross Crawford
Asher Reuveni
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elscint Ltd
Original Assignee
Elscint Ltd
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 Elscint Ltd filed Critical Elscint Ltd
Publication of FR2544939A1 publication Critical patent/FR2544939A1/fr
Application granted granted Critical
Publication of FR2544939B1 publication Critical patent/FR2544939B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G06T11/006—Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5258—Devices using data or image processing specially adapted for radiation diagnosis involving detection or reduction of artifacts or noise
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/421—Filtered back projection [FBP]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S378/00—X-ray or gamma ray systems or devices
    • Y10S378/901—Computer tomography program or processor

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Theoretical Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Public Health (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgery (AREA)
  • Algebra (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Processing (AREA)
FR848406360A 1983-04-21 1984-04-20 Systeme et procede de reprojection d'images acquises par retroprojection en tomodensitographie Expired - Lifetime FR2544939B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/487,310 US4626991A (en) 1983-04-21 1983-04-21 System for reprojecting images acquired by backprojection

Publications (2)

Publication Number Publication Date
FR2544939A1 FR2544939A1 (fr) 1984-10-26
FR2544939B1 true FR2544939B1 (fr) 1991-11-29

Family

ID=23935221

Family Applications (1)

Application Number Title Priority Date Filing Date
FR848406360A Expired - Lifetime FR2544939B1 (fr) 1983-04-21 1984-04-20 Systeme et procede de reprojection d'images acquises par retroprojection en tomodensitographie

Country Status (6)

Country Link
US (1) US4626991A (fr)
JP (1) JPS6041168A (fr)
DE (1) DE3414875C2 (fr)
FR (1) FR2544939B1 (fr)
IL (1) IL71561A (fr)
NL (1) NL192321C (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5414622A (en) * 1985-11-15 1995-05-09 Walters; Ronald G. Method and apparatus for back projecting image data into an image matrix location
NL8603059A (nl) * 1986-12-01 1988-07-01 Philips Nv Inrichting en werkwijze met bewegingsartefactreductie voor verschilbeeldbepaling.
US4809172A (en) * 1987-03-11 1989-02-28 Kabushiki Kaisha Toshiba Method for obtaining image data with a tomographic apparatus
US5008822A (en) * 1988-11-25 1991-04-16 Picker International, Inc. Combined high speed backprojection and forward projection processor for CT systems
US5136660A (en) * 1989-10-13 1992-08-04 International Business Machines Corporation Apparatus and method for computing the radon transform of digital images
US5251128A (en) * 1990-11-19 1993-10-05 General Electric Company Motion artifact reduction in projection imaging
US5438602A (en) * 1993-12-23 1995-08-01 General Electric Company Correction of CT attenuation data using fan beam reprojections
US6035012A (en) * 1998-05-14 2000-03-07 Gen Electric Artifact correction for highly attenuating objects
US6351548B1 (en) 1999-06-23 2002-02-26 The Board Of Trustees Of The University Of Illinois Fast hierarchical reprojection algorithm for tomography
US6307911B1 (en) 1999-06-23 2001-10-23 The Board Of Trustees Of The University Of Illinois Fast hierarchical backprojection for 3D Radon transform
US6332035B1 (en) 1999-06-23 2001-12-18 The Board Of Trustees Of The University Of Illinois Fast hierarchical reprojection algorithms for 3D radon transforms
US6263096B1 (en) 1999-06-23 2001-07-17 The Board Of Trustees Of The University Of Illinois Multilevel domain decomposition method for fast reprojection of images
US6282257B1 (en) 1999-06-23 2001-08-28 The Board Of Trustees Of The University Of Illinois Fast hierarchical backprojection method for imaging
US6631285B2 (en) * 2001-03-15 2003-10-07 Koninklijke Philips Electronics, N. V. Fast transform for reconstruction of rotating-slat data
DE10135994A1 (de) * 2001-07-24 2003-02-20 Siemens Ag Verfahren zur Reduzierung von Artefakten in CT-Bildern, die durch Strukturen hoher Dichte hervorgerufen werden
JP3950716B2 (ja) * 2002-03-06 2007-08-01 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 Ｘ線ｃｔ装置、及びその制御方法
US7551708B2 (en) * 2007-02-07 2009-06-23 General Electric Company Method of iterative reconstruction for energy discriminating computed tomography systems
DE102009014726A1 (de) * 2009-03-25 2010-10-07 Siemens Aktiengesellschaft Verfahren und Bildrekonstruktionseinrichtung zur Rekonstruktion von Bilddaten
DE102009043213A1 (de) * 2009-09-28 2011-03-31 Siemens Aktiengesellschaft Effiziente Korrektur von Polychromieeffekten bei der Bildrekonstruktion
US8189735B2 (en) * 2010-07-22 2012-05-29 General Electric Company System and method for reconstruction of X-ray images

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1578442A (en) * 1976-07-01 1980-11-05 Emi Ltd Radiography
GB1559138A (en) * 1977-02-02 1980-01-16 Emi Ltd Organisation of data for display
DE2709133A1 (de) * 1977-02-28 1978-08-31 Emi Ltd Verfahren und vorrichtung zur untersuchung einer ebenen scheibe eines koerpers mittels durchdringender strahlung
JPS544585A (en) * 1977-06-14 1979-01-13 Toshiba Corp Tomographic apparatus by radiations
DE2756659A1 (de) * 1977-12-19 1979-06-21 Philips Patentverwaltung Anordnung zur bestimmung der absorptionsverteilung
US4217641A (en) * 1978-04-28 1980-08-12 U.S. Philips Corporation Correction for polychromatic X-ray distortion in CT images
US4222104A (en) * 1978-11-02 1980-09-09 E M I Limited Radiography
US4442489A (en) * 1979-06-16 1984-04-10 U.S. Philips Corporation Device for computed tomography
US4422146A (en) * 1979-11-22 1983-12-20 The President Of Tokyo Institute Of Technology Reconstruction method of a computed tomographic image from a few X-ray projections
JPS6058504B2 (ja) * 1980-11-17 1985-12-20 株式会社東芝 再構成装置
JPS5814270A (ja) * 1981-07-17 1983-01-27 Fuji Photo Film Co Ltd 画像走査記録方法
FR2519772B1 (fr) * 1982-01-08 1986-01-31 Thomson Csf Dispositif de detection de reference pour tomodensitometre multidetecteur et tomodensitometre comportant un tel dispositif
US4472823A (en) * 1982-03-17 1984-09-18 U.S. Philips Corporation Computed tomography apparatus with detector sensitivity correction

Also Published As

Publication number Publication date
DE3414875C2 (de) 1994-03-17
IL71561A0 (en) 1984-07-31
NL192321B (nl) 1997-02-03
NL192321C (nl) 1997-06-04
IL71561A (en) 1987-03-31
NL8401237A (nl) 1984-11-16
FR2544939A1 (fr) 1984-10-26
US4626991A (en) 1986-12-02
DE3414875A1 (de) 1984-10-25
JPS6041168A (ja) 1985-03-04

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Legal Events

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