TR200000471A2 - Daire-ve-doğru yörünge verileri kullanılarak verimli konik-ışın oluşturulması. - Google Patents

Daire-ve-doğru yörünge verileri kullanılarak verimli konik-ışın oluşturulması.

Info

Publication number
TR200000471A2
TR200000471A2 TR200000471A TR200000471A TR200000471A2 TR 200000471 A2 TR200000471 A2 TR 200000471A2 TR 200000471 A TR200000471 A TR 200000471A TR 200000471 A TR200000471 A TR 200000471A TR 200000471 A2 TR200000471 A2 TR 200000471A2
Authority
TR
Turkey
Prior art keywords
orbit data
fourier
circle
data
cone
Prior art date
Application number
TR200000471A
Other languages
English (en)
Other versions
TR200000471A3 (tr
Inventor
Lin Wen-Ta�
Yavuz Mehmet
Original Assignee
General Electric Company
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 General Electric Company filed Critical General Electric Company
Publication of TR200000471A2 publication Critical patent/TR200000471A2/tr
Publication of TR200000471A3 publication Critical patent/TR200000471A3/tr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T12/00—Tomographic reconstruction from projections
    • G06T12/20—Inverse problem, i.e. transformations from projection space into object space
    • 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
    • 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
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/027—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis characterised by the use of a particular data acquisition trajectory, e.g. helical or spiral
    • 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)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)

Abstract

Daire-ve-dogru yörüngesine dayanan x-isinni tomografik görüntülerinin tekrar olusturulmasi için bir sistem saglanmaktadir. sistem, dairesel ve dogrusal yörümge verilerinden ayri ayri tekrar olusturulan görüntülerin, frekans alaninda, birlestirme adimlarini içerir.Özel olarak, yöntem, (1) frekans alaninda gölge alaninin bir gölge konisine dönüstürülmesi, (2) gölge konisinin 3D Fourier uzayinda bir grup 2D Fourier eslenmesi, (3) dairesel yörünge verisinin Fourier dönüsümünden gölge konisinin projeksiyonu olarak isaretlenen alan içinde kalan verilerin çikarilmasi ve ayni islemi dogrusal yörünge verisinin Fourier dönüsümünde gerçeklestirilmesi, (4) her bir 2D Fourier düzlemini karsilik gelen bir 2D görüntü düzlemine dönüstürülmesi adimlarini içerir Bir Direkt Fourier Yöntemi (DFM) kullanilarak bir dogrusal yörünge verisi tekrar olusturulmasi için bir interpolasyon teknigi de saglanmaktadir.
TR200000471A 1999-02-22 2000-02-21 Daire-ve-dogru yörünge verileri kullanilarak verimli konik-isin olusturulmasi. TR200000471A3 (tr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/253,706 US6148056A (en) 1999-02-22 1999-02-22 Efficient cone-beam reconstruction system using circle-and-line orbit data

Publications (2)

Publication Number Publication Date
TR200000471A2 true TR200000471A2 (tr) 2000-09-21
TR200000471A3 TR200000471A3 (tr) 2000-09-21

Family

ID=22961381

Family Applications (1)

Application Number Title Priority Date Filing Date
TR200000471A TR200000471A3 (tr) 1999-02-22 2000-02-21 Daire-ve-dogru yörünge verileri kullanilarak verimli konik-isin olusturulmasi.

Country Status (9)

Country Link
US (1) US6148056A (tr)
EP (1) EP1031943B1 (tr)
JP (1) JP4519974B2 (tr)
BR (1) BR0000899B1 (tr)
DE (1) DE60030498T2 (tr)
IL (1) IL134542A (tr)
PL (1) PL196564B1 (tr)
SG (1) SG82067A1 (tr)
TR (1) TR200000471A3 (tr)

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DE10014668A1 (de) * 1999-02-22 2001-10-04 Gen Electric Computertomographierekonstruktion unter Verwendung einer Schattenzonenausbesserung
US6263008B1 (en) * 1999-08-16 2001-07-17 Analogic Corporation Over-sampling detector array and re-sampling technique for a cone-beam computed tomography system
KR100502409B1 (ko) * 2000-03-23 2005-07-19 광주과학기술원 2차원의 고해상도 영상 획득 방법 및 장치
US6546067B2 (en) * 2001-01-30 2003-04-08 Kabushiki Kaisha Toshiba Reconstruction and scan of 4D-CT
US7305061B2 (en) * 2001-08-16 2007-12-04 Research Foundation Of The University Of Central Florida Efficient image reconstruction algorithm for the circle and arc cone beam computer tomography
US7280632B2 (en) * 2001-08-16 2007-10-09 University Of Central Florida Research Foundation, Inc. Exact filtered back projection (FBP) algorithm for spiral computer tomography with variable pitch
US6560308B1 (en) * 2001-10-26 2003-05-06 Kabushiki Kaisha Toshiba Method and system for approximating missing data in cone beam x-ray CT reconstruction
KR100397553B1 (ko) * 2002-06-20 2003-09-13 (주)메비시스 경사진 연속 단면영상의 볼륨데이터 생성방법
JP4644195B2 (ja) 2003-08-04 2011-03-02 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 球体上への冠状動脈のマッピング
US6999550B2 (en) * 2004-02-09 2006-02-14 Ge Medical Systems Global Technology Method and apparatus for obtaining data for reconstructing images of an object
JP2007151806A (ja) * 2005-12-05 2007-06-21 Ge Medical Systems Global Technology Co Llc Ｘ線ｃｔ撮像方法およびｘ線ｃｔ装置
EP2011085A1 (en) * 2006-04-25 2009-01-07 Wisconsin Alumni Research Foundation System and method for estimating data missing from ct imaging projections
US8897528B2 (en) 2006-06-26 2014-11-25 General Electric Company System and method for iterative image reconstruction
CN101505661B (zh) * 2006-08-31 2012-02-15 皇家飞利浦电子股份有限公司 成像系统
JP5161888B2 (ja) * 2006-11-24 2013-03-13 株式会社東芝 円状及び直線状軌道を用いた医用撮像における断層撮影法の再構成のための方法及びシステム
US7848479B1 (en) 2007-06-29 2010-12-07 University Of Central Florida Research Foundation, Inc. Image reconstruction for a general circle-plus trajectory
US8160199B2 (en) * 2007-10-12 2012-04-17 Siemens Medical Solutions Usa, Inc. System for 3-dimensional medical image data acquisition
WO2009066201A2 (en) * 2007-11-19 2009-05-28 Koninklijke Philips Electronics N.V. Imaging apparatus, imaging method and computer program for determining an image of a region of interest
DE102010026374A1 (de) * 2010-07-07 2012-01-12 Siemens Aktiengesellschaft Verfahren zur Rekonstruktion eines dreidimensionalen Bilddatensatzes und Röntgeneinrichtung
US8615121B2 (en) 2011-05-31 2013-12-24 General Electric Company Reconstruction of projection data to generate tomographic images having improved frequency characteristics
US8861829B2 (en) 2011-09-30 2014-10-14 General Electric Company Method and system for reconstruction of tomographic images
US9091628B2 (en) 2012-12-21 2015-07-28 L-3 Communications Security And Detection Systems, Inc. 3D mapping with two orthogonal imaging views
US9008363B1 (en) 2013-01-02 2015-04-14 Google Inc. System and method for computing optical flow
CN103278514B (zh) * 2013-05-02 2015-05-20 浙江大学 一种水果内部品质的检测模型的建模方法
US10235763B2 (en) 2016-12-01 2019-03-19 Google Llc Determining optical flow

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670039B1 (fr) * 1990-11-29 1993-12-24 Commissariat A Energie Atomique Procede et dispositif de reconstruction d'images tridimentionnelles d'un objet en utilisant deux trajectoires circulaires d'acquisition.
US5706325A (en) * 1996-12-05 1998-01-06 General Electric Company Exact regional reconstruction of longitudinally-unbounded objects using a circle-and-line cone beam tomographic system

Also Published As

Publication number Publication date
PL338536A1 (en) 2000-08-28
BR0000899A (pt) 2000-09-26
SG82067A1 (en) 2001-07-24
EP1031943A2 (en) 2000-08-30
US6148056A (en) 2000-11-14
DE60030498D1 (de) 2006-10-19
BR0000899B1 (pt) 2013-06-11
EP1031943A3 (en) 2004-03-31
TR200000471A3 (tr) 2000-09-21
EP1031943B1 (en) 2006-09-06
IL134542A (en) 2003-11-23
JP2000237183A (ja) 2000-09-05
DE60030498T2 (de) 2008-04-17
JP4519974B2 (ja) 2010-08-04
PL196564B1 (pl) 2008-01-31
IL134542A0 (en) 2001-04-30

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