DE69911688D1 - Verfahren zur Verbesserung des Signal-/Rauschverhältnisses im Röntgenbild eines bewegten Objektes - Google Patents

Verfahren zur Verbesserung des Signal-/Rauschverhältnisses im Röntgenbild eines bewegten Objektes

Info

Publication number
DE69911688D1
DE69911688D1 DE69911688T DE69911688T DE69911688D1 DE 69911688 D1 DE69911688 D1 DE 69911688D1 DE 69911688 T DE69911688 T DE 69911688T DE 69911688 T DE69911688 T DE 69911688T DE 69911688 D1 DE69911688 D1 DE 69911688D1
Authority
DE
Germany
Prior art keywords
noise ratio
moving object
improving
images
signal
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 - Fee Related
Application number
DE69911688T
Other languages
English (en)
Other versions
DE69911688T2 (de
Inventor
Philippe Rizo
Rolland Sauze
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of DE69911688D1 publication Critical patent/DE69911688D1/de
Application granted granted Critical
Publication of DE69911688T2 publication Critical patent/DE69911688T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/70—Denoising; Smoothing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/50—Image enhancement or restoration using two or more images, e.g. averaging or subtraction
    • 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
    • A61B6/58—Testing, adjusting or calibrating thereof
    • A61B6/582—Calibration
    • A61B6/583—Calibration using calibration phantoms
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10116—X-ray image

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Processing (AREA)
DE69911688T 1998-06-19 1999-06-14 Verfahren zur Verbesserung des Signal-/Rauschverhältnisses im Röntgenbild eines bewegten Objektes Expired - Fee Related DE69911688T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9807759 1998-06-19
FR9807759A FR2780183B1 (fr) 1998-06-19 1998-06-19 Procede d'amelioration du rapport signal/bruit de l'image d'un objet en mouvement

Publications (2)

Publication Number Publication Date
DE69911688D1 true DE69911688D1 (de) 2003-11-06
DE69911688T2 DE69911688T2 (de) 2004-12-02

Family

ID=9527598

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69911688T Expired - Fee Related DE69911688T2 (de) 1998-06-19 1999-06-14 Verfahren zur Verbesserung des Signal-/Rauschverhältnisses im Röntgenbild eines bewegten Objektes

Country Status (4)

Country Link
US (1) US6249568B1 (de)
EP (1) EP0965946B1 (de)
DE (1) DE69911688T2 (de)
FR (1) FR2780183B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6289235B1 (en) * 1998-03-05 2001-09-11 Wake Forest University Method and system for creating three-dimensional images using tomosynthetic computed tomography
US6081577A (en) 1998-07-24 2000-06-27 Wake Forest University Method and system for creating task-dependent three-dimensional images
DE10102324A1 (de) * 2001-01-19 2002-07-25 Philips Corp Intellectual Pty Röntgeneinrichtung für die Tomosynthese
US7587022B1 (en) * 2006-03-23 2009-09-08 General Electric Company Correlation-based motion estimation of object to be imaged
US11341629B2 (en) * 2020-07-02 2022-05-24 Pratt & Whitney Canada Corp. Systems and methods for generating an inspection image of an object from radiographic imaging

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5359637A (en) * 1992-04-28 1994-10-25 Wake Forest University Self-calibrated tomosynthetic, radiographic-imaging system, method, and device
US5974108A (en) * 1995-12-25 1999-10-26 Kabushiki Kaisha Toshiba X-ray CT scanning apparatus
FR2749957B1 (fr) * 1996-06-18 1998-07-24 Commissariat Energie Atomique Procede de production d'une sequence restauree d'images d'un objet en mouvement a partir de mesures bruitees
US6081577A (en) * 1998-07-24 2000-06-27 Wake Forest University Method and system for creating task-dependent three-dimensional images

Also Published As

Publication number Publication date
US6249568B1 (en) 2001-06-19
EP0965946A1 (de) 1999-12-22
FR2780183A1 (fr) 1999-12-24
EP0965946B1 (de) 2003-10-01
FR2780183B1 (fr) 2000-07-28
DE69911688T2 (de) 2004-12-02

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Legal Events

Date Code Title Description
8332 No legal effect for de
8370 Indication related to discontinuation of the patent is to be deleted
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee