WO2009091202A3 - Procédé de correction d'artéfacts de troncature - Google Patents

Procédé de correction d'artéfacts de troncature Download PDF

Info

Publication number
WO2009091202A3
WO2009091202A3 PCT/KR2009/000231 KR2009000231W WO2009091202A3 WO 2009091202 A3 WO2009091202 A3 WO 2009091202A3 KR 2009000231 W KR2009000231 W KR 2009000231W WO 2009091202 A3 WO2009091202 A3 WO 2009091202A3
Authority
WO
WIPO (PCT)
Prior art keywords
truncation artifacts
correcting
patient
head
correcting truncation
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.)
Ceased
Application number
PCT/KR2009/000231
Other languages
English (en)
Korean (ko)
Other versions
WO2009091202A9 (fr
WO2009091202A2 (fr
Inventor
노창준
김태우
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.)
E Woo Technology Co Ltd
Original Assignee
E Woo Technology Co 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 E Woo Technology Co Ltd filed Critical E Woo Technology Co Ltd
Publication of WO2009091202A2 publication Critical patent/WO2009091202A2/fr
Publication of WO2009091202A3 publication Critical patent/WO2009091202A3/fr
Publication of WO2009091202A9 publication Critical patent/WO2009091202A9/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
    • A61B6/51—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for dentistry
    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T12/00—Tomographic reconstruction from projections
    • G06T12/10—Image preprocessing, e.g. calibration, positioning of sources or scatter correction
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G06T2211/432—Truncation

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

La présente invention concerne un procédé de correction d'artéfacts de troncature dans un appareil de tomographie dentaire aux rayons X pouvant asurer une telle correction d'artéfacts de troncature causés par la mise en image d'une déviation d'une partie de la tête d'un patient de la zone d'intérêt lors de la mise en image d'un objet (la tête d'un patient), au moyen d'une technique LSF qui rehausse les contours des images reconfigurées.
PCT/KR2009/000231 2008-01-15 2009-01-15 Procédé de correction d'artéfacts de troncature Ceased WO2009091202A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2008-0004377 2008-01-15
KR1020080004377A KR100923094B1 (ko) 2008-01-15 2008-01-15 트렁케이션 아티팩트를 보정하는 방법

Publications (3)

Publication Number Publication Date
WO2009091202A2 WO2009091202A2 (fr) 2009-07-23
WO2009091202A3 true WO2009091202A3 (fr) 2009-10-01
WO2009091202A9 WO2009091202A9 (fr) 2010-01-28

Family

ID=40885806

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/000231 Ceased WO2009091202A2 (fr) 2008-01-15 2009-01-15 Procédé de correction d'artéfacts de troncature

Country Status (2)

Country Link
KR (1) KR100923094B1 (fr)
WO (1) WO2009091202A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160057935A (ko) 2014-11-14 2016-05-24 삼성전자주식회사 단층 영상 장치 및 그에 따른 단층 영상 복원 방법
KR102379067B1 (ko) 2014-12-01 2022-03-25 삼성전자주식회사 의료 영상 장치 및 의료 영상 처리 방법
CN111260771B (zh) * 2020-01-13 2023-08-29 北京东软医疗设备有限公司 一种图像重建方法及装置
KR102387403B1 (ko) * 2020-05-28 2022-04-14 건양대학교 산학협력단 잘림 아티팩트 저감 프로젝션 데이터 보정방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550371A (en) * 1982-09-27 1985-10-29 General Electric Company Method and apparatus for compensating CT images for truncated projections
JP2003116824A (ja) * 2001-08-09 2003-04-22 Shimadzu Corp 放射線画像の補正方法及び放射線撮影装置
JP2003199740A (ja) * 2001-10-25 2003-07-15 Toshiba Corp Ｘ線ｃｔ装置、ｘ線ｃｔの３次元再構成方法、及びｘ線ｃｔの重み設定方法
JP3446327B2 (ja) * 1994-08-31 2003-09-16 株式会社島津製作所 放射線撮像装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550371A (en) * 1982-09-27 1985-10-29 General Electric Company Method and apparatus for compensating CT images for truncated projections
JP3446327B2 (ja) * 1994-08-31 2003-09-16 株式会社島津製作所 放射線撮像装置
JP2003116824A (ja) * 2001-08-09 2003-04-22 Shimadzu Corp 放射線画像の補正方法及び放射線撮影装置
JP2003199740A (ja) * 2001-10-25 2003-07-15 Toshiba Corp Ｘ線ｃｔ装置、ｘ線ｃｔの３次元再構成方法、及びｘ線ｃｔの重み設定方法

Also Published As

Publication number Publication date
KR20090078513A (ko) 2009-07-20
KR100923094B1 (ko) 2009-10-22
WO2009091202A9 (fr) 2010-01-28
WO2009091202A2 (fr) 2009-07-23

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