FR2935049B1 - Procede de reconstruction d'image pour systeme de tomodensitometrie de double energie a haute energie - Google Patents

Procede de reconstruction d'image pour systeme de tomodensitometrie de double energie a haute energie

Info

Publication number
FR2935049B1
FR2935049B1 FR0955256A FR0955256A FR2935049B1 FR 2935049 B1 FR2935049 B1 FR 2935049B1 FR 0955256 A FR0955256 A FR 0955256A FR 0955256 A FR0955256 A FR 0955256A FR 2935049 B1 FR2935049 B1 FR 2935049B1
Authority
FR
France
Prior art keywords
tomodensitometry
image reconstruction
energy
reconstruction method
high energy
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.)
Active
Application number
FR0955256A
Other languages
English (en)
Other versions
FR2935049A1 (fr
Inventor
Li Zhang
Zhiqiang Chen
Kejun Kang
Haifeng Hu
Yuxiang Xing
Xinhui Duan
Yuanjing Li
Yinong Liu
Qingping Huang
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.)
Tsinghua University
Nuctech Co Ltd
Original Assignee
Tsinghua University
Nuctech 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 Tsinghua University, Nuctech Co Ltd filed Critical Tsinghua University
Publication of FR2935049A1 publication Critical patent/FR2935049A1/fr
Application granted granted Critical
Publication of FR2935049B1 publication Critical patent/FR2935049B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/046—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using tomography, e.g. computed tomography [CT]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
    • G01V5/20—Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects
    • G01V5/22—Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
    • G01V5/226—Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays using tomography
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/10—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the material being confined in a container, e.g. in a luggage X-ray scanners
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
    • G01V5/20—Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects
    • G01V5/22—Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
    • G01V5/224—Multiple energy techniques using one type of radiation, e.g. X-rays of different energies

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pulmonology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Theoretical Computer Science (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
FR0955256A 2008-08-13 2009-07-28 Procede de reconstruction d'image pour systeme de tomodensitometrie de double energie a haute energie Active FR2935049B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200810118304.2A CN101647706B (zh) 2008-08-13 2008-08-13 高能双能ct系统的图象重建方法

Publications (2)

Publication Number Publication Date
FR2935049A1 FR2935049A1 (fr) 2010-02-19
FR2935049B1 true FR2935049B1 (fr) 2015-08-07

Family

ID=41129731

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0955256A Active FR2935049B1 (fr) 2008-08-13 2009-07-28 Procede de reconstruction d'image pour systeme de tomodensitometrie de double energie a haute energie

Country Status (8)

Country Link
US (1) US8306180B2 (fr)
CN (1) CN101647706B (fr)
DE (1) DE102009028104B4 (fr)
FR (1) FR2935049B1 (fr)
GB (1) GB2462529B (fr)
HK (1) HK1140123A1 (fr)
RU (1) RU2413207C1 (fr)
WO (1) WO2010017729A1 (fr)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100135564A1 (en) * 2008-11-28 2010-06-03 Brian William Thomsen Apparatus for and method of selecting material triplets for a multi-material decomposition
US8311181B2 (en) * 2008-11-28 2012-11-13 General Electric Company Apparatus and method of visualizing multi-energy imaging data
EP2539697A4 (fr) * 2010-02-25 2017-05-10 Rapiscan Systems, Inc. Système d'inspection par spectroscopie de rayons x de haute énergie et procédés pour déterminer le nombre atomique de matières
ES2655170T3 (es) * 2011-07-26 2018-02-19 Ingrain, Inc. Procedimiento para estimar la densidad aparente de muestras de roca utilizando tomografía computarizada por rayos X de doble energía
IN2014CN01546A (fr) * 2011-08-31 2015-05-08 Koninkl Philips Nv
US9970890B2 (en) * 2011-10-20 2018-05-15 Varex Imaging Corporation Method and apparatus pertaining to non-invasive identification of materials
CN102928448B (zh) * 2012-10-30 2015-08-19 公安部第一研究所 通道式四视角x射线液态物品安全检查方法及检查装置
CN103900931B (zh) * 2012-12-26 2017-04-26 首都师范大学 一种多能谱ct成像方法及成像系统
CN103900503B (zh) * 2012-12-27 2016-12-28 清华大学 提取形状特征的方法、安全检查方法以及设备
CN104346820B (zh) * 2013-07-26 2017-05-17 清华大学 一种x光双能ct重建方法
CN104422704B (zh) * 2013-08-21 2017-07-25 同方威视技术股份有限公司 对x光能谱ct的能谱信息进行分解的方法和对应的重建方法
US10508505B2 (en) * 2013-10-28 2019-12-17 Vetco Gray, LLC Flow-by holes with gallery and channel arrangement on wellhead and tubular hanger
CN103559699B (zh) * 2013-11-18 2016-09-28 首都师范大学 一种基于投影估计的多能谱ct图像重建方法
CN103729868A (zh) * 2014-01-07 2014-04-16 天津大学 基于双能ct扫描数据重建投影图像检测方法
WO2015171943A1 (fr) 2014-05-07 2015-11-12 Decision Sciences International Corporation Détection d'objet à base d'image et extraction de caractéristiques à partir d'une image de particules chargées reconstruite d'un volume d'intérêt
US10115199B2 (en) 2014-10-08 2018-10-30 Decision Sciences International Corporation Image based object locator
WO2016059527A2 (fr) * 2014-10-13 2016-04-21 Koninklijke Philips N.V. Imagerie spectrale
US9943279B2 (en) 2014-10-21 2018-04-17 General Electric Company Methods and systems for task-based data generation and weighting for CT spectral imaging
CN105806856B (zh) * 2014-12-30 2019-02-19 清华大学 双能射线成像方法和系统
CN105758873B (zh) * 2015-03-04 2019-12-31 公安部第一研究所 一种ct探测装置及其数据处理方法
EP3271898B1 (fr) * 2015-03-18 2019-10-16 Prismatic Sensors AB Reconstruction d'image sur la base de données d'image à énergie résolue à partir d'un détecteur multi-compartiment à comptage de photons
CN106353828B (zh) * 2015-07-22 2018-09-21 清华大学 在安检系统中估算被检查物体重量的方法和装置
CN105223214B (zh) * 2015-10-22 2019-01-11 同方威视技术股份有限公司 用于物质分辨的标定装置、标定方法和标定系统
JP2019515280A (ja) * 2016-05-03 2019-06-06 ラピスカン システムズ、インコーポレイテッド 放射信号処理システム
DE102016209674B4 (de) * 2016-06-02 2023-10-26 Siemens Healthcare Gmbh Ermittlung einer räumlichen Verteilung von Materialeigenschaftswerten auf Basis einer Einzelenergie-CT-Bildaufnahme mit Hilfe eines iterativen Optimierungsverfahrens
WO2018046328A1 (fr) 2016-09-08 2018-03-15 Koninklijke Philips N.V. Appareil de décomposition de matériaux multiples
CN106910157B (zh) * 2017-02-17 2020-06-26 公安部第一研究所 一种多级并行的图像重建方法及装置
CN107884806B (zh) * 2017-10-19 2020-05-08 天津大学 面向双能ct成像的x射线能谱探测及重构解析方法
CN108230277B (zh) * 2018-02-09 2020-09-11 中国人民解放军战略支援部队信息工程大学 一种基于卷积神经网络的双能ct图像分解方法
CN109946747A (zh) * 2019-03-25 2019-06-28 北京航星机器制造有限公司 一种基于新型探测装置的双能ct探测系统
CN110731788B (zh) * 2019-07-18 2023-10-20 天津大学 一种基于双能ct扫描仪对基物质进行快速分解的方法
CN111134709B (zh) * 2020-01-17 2021-09-14 清华大学 一种多能量ct基材料分解方法
CN111366982A (zh) * 2020-03-10 2020-07-03 上海英曼尼安全装备有限公司 一种双能ct系统的探测器装置、双能ct系统及图像重建方法
EP4008260A1 (fr) * 2020-12-04 2022-06-08 Koninklijke Philips N.V. Procédé d'amélioration de la décomposition de matériau à base de ct
US20240000411A1 (en) * 2020-12-04 2024-01-04 Koninklijke Philips N.V. Method for improving ct-based material decomposition
CN112666194B (zh) * 2020-12-22 2022-12-20 上海培云教育科技有限公司 一种虚拟数字dr图像的生成方法及dr虚拟仿真仪器
TWI776443B (zh) * 2021-03-26 2022-09-01 行政院原子能委員會核能研究所 用於雙能量x光成像系統之有效原子序計算方法
CN114492060B (zh) * 2022-01-17 2024-03-29 北京工业大学 小模数塑料直齿圆柱齿轮工业ct投影及重建图像建模方法
CN115105107A (zh) * 2022-06-20 2022-09-27 北京朗视仪器股份有限公司 一种能谱成像方法及能谱成像系统

Family Cites Families (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3848130A (en) * 1973-06-25 1974-11-12 A Macovski Selective material x-ray imaging system
US3965358A (en) * 1974-12-06 1976-06-22 Albert Macovski Cross-sectional imaging system using a polychromatic x-ray source
US4029963A (en) * 1976-07-30 1977-06-14 The Board Of Trustees Of Leland Stanford Junior University X-ray spectral decomposition imaging system
US4686695A (en) * 1979-02-05 1987-08-11 Board Of Trustees Of The Leland Stanford Junior University Scanned x-ray selective imaging system
US4571491A (en) * 1983-12-29 1986-02-18 Shell Oil Company Method of imaging the atomic number of a sample
US5132998A (en) * 1989-03-03 1992-07-21 Matsushita Electric Industrial Co., Ltd. Radiographic image processing method and photographic imaging apparatus therefor
FR2656109B1 (fr) * 1989-12-14 1992-02-28 Gen Electric Cgr Procede de calibration de la chaine de mesure d'un appareil a rayons x.
US5155365A (en) * 1990-07-09 1992-10-13 Cann Christopher E Emission-transmission imaging system using single energy and dual energy transmission and radionuclide emission data
US5319547A (en) * 1990-08-10 1994-06-07 Vivid Technologies, Inc. Device and method for inspection of baggage and other objects
US5247559A (en) * 1991-10-04 1993-09-21 Matsushita Electric Industrial Co., Ltd. Substance quantitative analysis method
GB9200828D0 (en) * 1992-01-15 1992-03-11 Image Research Ltd Improvements in and relating to material identification using x-rays
US5481584A (en) * 1994-11-23 1996-01-02 Tang; Jihong Device for material separation using nondestructive inspection imaging
US6069936A (en) * 1997-08-18 2000-05-30 Eg&G Astrophysics Material discrimination using single-energy x-ray imaging system
US6324240B1 (en) * 1998-11-12 2001-11-27 The Board Of Trustees Of The Leland Stanford Junior University Method for beam hardening correction in quantitative computed X-ray tomography
US6173034B1 (en) * 1999-01-25 2001-01-09 Advanced Optical Technologies, Inc. Method for improved breast x-ray imaging
AU778970B2 (en) 1999-08-02 2004-12-23 Institute Of Geological & Nuclear Sciences Limited A method for the non-invasive assessment of properties of materials including coal and wool
US6418189B1 (en) * 2000-01-24 2002-07-09 Analogic Corporation Explosive material detection apparatus and method using dual energy information of a scan
NZ502033A (en) 2000-06-11 2003-05-30 Inst Of Geol & Nuclear Science Assessing properties of meat such as the fat or lean meat content using dual energy x-ray absorption scanner
DE10048775B4 (de) * 2000-09-29 2006-02-02 Siemens Ag Röntgen-Computertomographieeinrichtung
DE60226129T2 (de) * 2001-02-23 2009-07-02 Koninklijke Philips Electronics N.V. Verfahren und system zur bestimmung der dichte eines volumens in einem bilddatensatz
US7295691B2 (en) * 2002-05-15 2007-11-13 Ge Medical Systems Global Technology Company, Llc Computer aided diagnosis of an image set
US6904118B2 (en) * 2002-07-23 2005-06-07 General Electric Company Method and apparatus for generating a density map using dual-energy CT
ES2286480T3 (es) 2002-12-10 2007-12-01 Commonwealth Scientific And Industrial Research Organisation Equipo radiografico.
DE10311628B4 (de) * 2003-03-14 2006-04-13 Siemens Ag Bildgebungsverfahren
US20050058242A1 (en) 2003-09-15 2005-03-17 Peschmann Kristian R. Methods and systems for the rapid detection of concealed objects
US6987833B2 (en) * 2003-10-16 2006-01-17 General Electric Company Methods and apparatus for identification and imaging of specific materials
DE10352013B4 (de) * 2003-11-07 2008-02-07 Siemens Ag Verfahren und Vorrichtung zur ortsaufgelösten Bestimmung der Elementkonzentrationen in Untersuchungsobjekten
US7453987B1 (en) 2004-03-04 2008-11-18 Science Applications International Corporation Method and system for high energy, low radiation power X-ray imaging of the contents of a target
US7190757B2 (en) * 2004-05-21 2007-03-13 Analogic Corporation Method of and system for computing effective atomic number images in multi-energy computed tomography
CN2833569Y (zh) * 2005-09-22 2006-11-01 清华同方威视技术股份有限公司 利用射线源对液体物品进行ct安全检查的设备
CN101071110B (zh) * 2006-05-08 2011-05-11 清华大学 一种基于螺旋扫描立体成像的货物安全检查方法
CN101074937B (zh) 2006-05-19 2010-09-08 清华大学 能谱调制装置、识别材料的方法和设备及图像处理方法
US7539283B2 (en) 2007-01-17 2009-05-26 Ge Homeland Protection, Inc. Combined computed tomography and nuclear resonance fluorescence cargo inspection system and method
US7492862B2 (en) 2007-01-17 2009-02-17 Ge Homeland Protection, Inc. Computed tomography cargo inspection system and method
CN101266216A (zh) 2007-03-14 2008-09-17 清华大学 标定双能ct系统的方法和图像重建方法
WO2008142446A2 (fr) 2007-05-17 2008-11-27 Durham Scientific Crystals Ltd Procédé et appareil pour l'inspection et la caractérisation des matériaux
GB0716045D0 (en) 2007-08-17 2007-09-26 Durham Scient Crystals Ltd Method and apparatus for inspection of materials
US7649977B2 (en) 2007-09-12 2010-01-19 Hamilton Sundstrand Corporation Neutron-gamma ray tomography
CN101403711B (zh) * 2007-10-05 2013-06-19 清华大学 液态物品检查方法和设备
CN101403710B (zh) * 2007-10-05 2013-06-19 清华大学 液态物品检查方法和设备
CN101435783B (zh) 2007-11-15 2011-01-26 同方威视技术股份有限公司 物质识别方法和设备

Also Published As

Publication number Publication date
GB0913737D0 (en) 2009-09-16
US8306180B2 (en) 2012-11-06
HK1140123A1 (en) 2010-10-08
CN101647706B (zh) 2012-05-30
GB2462529A (en) 2010-02-17
DE102009028104B4 (de) 2015-07-16
RU2413207C1 (ru) 2011-02-27
FR2935049A1 (fr) 2010-02-19
GB2462529B (en) 2011-03-16
CN101647706A (zh) 2010-02-17
DE102009028104A1 (de) 2010-03-04
WO2010017729A1 (fr) 2010-02-18
US20100040192A1 (en) 2010-02-18

Similar Documents

Publication Publication Date Title
FR2935049B1 (fr) Procede de reconstruction d'image pour systeme de tomodensitometrie de double energie a haute energie
FR2939554B1 (fr) Procede de fonctionnement d'un systeme domotique
FR2930132B1 (fr) Systeme de mammographie et procede pour le faire fonctionner.
FR2943732B1 (fr) Procede de surveillance d'un inverseur de poussee
FR2953940B1 (fr) Procede de geo-referencement d'une zone imagee
FR2937079B1 (fr) Procede et systeme de surveillance d'un turboreacteur
FR2959810B1 (fr) Procede de definition d'un systeme de navigation.
BRPI0906491A2 (pt) Método para reconstrução de imagem.
FR2933021B1 (fr) Procede de durcissement d'un obturateur gonflable.
FR2932226B1 (fr) Procede de synchronisation des actionneurs d'un capot mobile d'inverseur de poussee
FR2943930B1 (fr) Procede pour modifier l'energie de surface d'un solide
FR2929733B1 (fr) Systeme et procede de securisation d'un ordinateur comportant un micronoyau
FR2967972B1 (fr) Procede de commande d'un systeme de flottabilite pour aeronef et systeme de flottabilite mettant en oeuvre ledit procede, et aeronef
FR2948776B1 (fr) Procede de construction d'images pour un appareil d'imagerie
FR2962870B1 (fr) Procede de realisation d'une video combinee
FR2930355B1 (fr) Procede de gestion de la consommation d'energie pour les systemes multiprocesseurs.
FR2940736B1 (fr) Systeme et procede de codage video
FR2981129B1 (fr) Procede et systeme perfectionne de conversion de l'energie thermique marine.
FR2948841B1 (fr) Procede et systeme pour la selection automatique de media de transmission
FR2949072B1 (fr) Procede et systeme ameliores pour l'extraction d'une substance par antisublimation et fusion
FR2958434B1 (fr) Procede de traitement d'images radiologiques
LU91479B1 (fr) Procede de preparation d'escitalopram
FR2925320B1 (fr) Procede de maquillage des levres.
FR2949514B1 (fr) Procede de commande d'un systeme micro-hybride
FR2946666B1 (fr) Systeme et procede de recuperation d'energie

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 8

PLFP Fee payment

Year of fee payment: 9

PLFP Fee payment

Year of fee payment: 10

PLFP Fee payment

Year of fee payment: 11

PLFP Fee payment

Year of fee payment: 12

PLFP Fee payment

Year of fee payment: 13

PLFP Fee payment

Year of fee payment: 14

PLFP Fee payment

Year of fee payment: 15

PLFP Fee payment

Year of fee payment: 16