ES2121851T3 - Procedimiento y dispositivo de ayuda a la inspeccion de un cuerpo, especialmente para la tomografia. - Google Patents

Procedimiento y dispositivo de ayuda a la inspeccion de un cuerpo, especialmente para la tomografia.

Info

Publication number
ES2121851T3
ES2121851T3 ES92908376T ES92908376T ES2121851T3 ES 2121851 T3 ES2121851 T3 ES 2121851T3 ES 92908376 T ES92908376 T ES 92908376T ES 92908376 T ES92908376 T ES 92908376T ES 2121851 T3 ES2121851 T3 ES 2121851T3
Authority
ES
Spain
Prior art keywords
wavebeams
pct
signals
sec
boundary
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
ES92908376T
Other languages
English (en)
Inventor
Jean-Philippe Thirion
Nicholas Ayache
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.)
Institut National de Recherche en Informatique et en Automatique INRIA
Original Assignee
Institut National de Recherche en Informatique et en Automatique INRIA
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 Institut National de Recherche en Informatique et en Automatique INRIA filed Critical Institut National de Recherche en Informatique et en Automatique INRIA
Application granted granted Critical
Publication of ES2121851T3 publication Critical patent/ES2121851T3/es
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
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Algebra (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

EL DISPOSITIVO COMPRENDE MEDIOS (20) PARA ADQUIRIR UN CONJUNTO ORDENADO DE SEÑALES DE DATOS BRUTOS, CADA UNA DE LAS CUALES REPRESENTA LA INTENSIDAD DE UN HAZ DE ONDAS TALES COMO RAYOS X,QUE SALE DEL CUERPO A LO LARGO DE UN EJE LLAMADO "LINEA DE ADQUISICION", DICHO EJE ESTA DESIGNADO POR AL MENOS DOS PARAMETROS. LOS DATOS BRUTOS DEFINEN, EN FUNCION DE ESTOS PARAMETROS DE EJE, UNA "IMAGEN DE LAS PROYECCIONES" DE LA RADIACION EN UN "ESPACIO DE LAS PROYECCIONES", EN EL QUE CADA PUNTO REPRESENTA UNA RECTA DEL ESPACIO REAL. SE AÑADEN MEDIOS (22) DE TRATAMIENTO DE ESTAS SEÑALES DE DATOS BRUTOS. ESTOS MEDIOS DE TRATAMIENTO (22) COMPRENDEN MEDIOS DE ANALISIS DIFERENCIAL DE LAS SEÑALES DE DATOS BRUTOS RESPECTO DE SUS PARAMETROS DE EJE, PARA DETERMINAR PUNTOS CRITICOS, DONDE SE MANIFIESTA UN SALTO DE INTENSIDAD DE LA SEÑAL CAPTADA, DE MANERA QUE CADA UNO DE ESTOS PUNTOS CORRESPONDE A UNA LINEA DE ADQUISICION TANGENTE A UN LIMITE INTERNO O EXTERNO DEL CUERPO EXAMINADO, MIENTRAS QUE LOS PARAMETROS DE EJE DE LOS PUNTOS CRITICOS REPRESENTAN EN SU CONJUNTO LA POSICION DE UNA PARTE AL MENOS DE DICHOS LIMITES DEL CUERPO.
ES92908376T 1991-04-25 1992-03-19 Procedimiento y dispositivo de ayuda a la inspeccion de un cuerpo, especialmente para la tomografia. Expired - Lifetime ES2121851T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9105138A FR2675927B1 (fr) 1991-04-25 1991-04-25 Procede et dispositif d'aide a l'inspection d'un corps, notamment pour la tomographie.

Publications (1)

Publication Number Publication Date
ES2121851T3 true ES2121851T3 (es) 1998-12-16

Family

ID=9412268

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92908376T Expired - Lifetime ES2121851T3 (es) 1991-04-25 1992-03-19 Procedimiento y dispositivo de ayuda a la inspeccion de un cuerpo, especialmente para la tomografia.

Country Status (9)

Country Link
US (1) US5421330A (es)
EP (1) EP0536357B1 (es)
JP (1) JPH05508093A (es)
AT (1) ATE168801T1 (es)
DE (1) DE69226321T2 (es)
DK (1) DK0536357T3 (es)
ES (1) ES2121851T3 (es)
FR (1) FR2675927B1 (es)
WO (1) WO1992020032A1 (es)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9122843D0 (en) * 1991-10-28 1991-12-11 Imperial College Method and apparatus for image processing
FR2736163B1 (fr) * 1995-06-29 1997-08-22 Sopha Medical Methode d'obtention, en medecine nucleaire, d'une image du corps d'un patient corrigee des troncatures
EP0843868A1 (en) * 1995-07-27 1998-05-27 Imperial Cancer Research Technology Limited Raw data segmentation and analysis in image tomography
US5682887A (en) * 1996-03-20 1997-11-04 Siemens Corporate Research, Inc. Determining the position range of the heart from a sequence of projection images using 1-D pseudo motion analysis
US5699799A (en) * 1996-03-26 1997-12-23 Siemens Corporate Research, Inc. Automatic determination of the curved axis of a 3-D tube-shaped object in image volume
US5908387A (en) * 1996-06-21 1999-06-01 Quinton Instrument Company Device and method for improved quantitative coronary artery analysis
US5815591A (en) * 1996-07-10 1998-09-29 R2 Technology, Inc. Method and apparatus for fast detection of spiculated lesions in digital mammograms
US6171243B1 (en) * 1997-05-30 2001-01-09 Picker International, Inc. Combination of collimated and coincidence information for positron imaging
US6201888B1 (en) 1998-02-18 2001-03-13 International Business Machines Corporation System and method for restoring, describing and graphically displaying noise-corrupted boundaries in tomography images
WO1999057683A1 (en) 1998-05-04 1999-11-11 The Johns Hopkins University Method and apparatus for segmenting small structures in images
IL127254A0 (en) * 1998-11-25 1999-09-22 Univ Ramot Method and system for automatic classification and quantitative evaluation of adnexal masses bases on a cross-sectional or projectional images of the adnex
US6944322B2 (en) * 2001-03-28 2005-09-13 Visiongate, Inc. Optical tomography of small objects using parallel ray illumination and post-specimen optical magnification
US20030171665A1 (en) * 2002-03-05 2003-09-11 Jiang Hsieh Image space correction for multi-slice helical reconstruction
US20040120566A1 (en) * 2002-12-19 2004-06-24 Gines David L. Compact storage of projection matrix for tomography using separable operators
US20080031400A1 (en) * 2004-05-06 2008-02-07 Luc Beaulieu 3D Localization Of Objects From Tomography Data
US7139367B1 (en) * 2004-09-29 2006-11-21 Khai Minh Le Time share digital integration method and apparatus for processing X-ray images
US6991738B1 (en) 2004-10-13 2006-01-31 University Of Washington Flow-through drum centrifuge
US7176916B2 (en) 2005-04-15 2007-02-13 T.I.E.S., Inc. Object identifying system for segmenting unreconstructed data in image tomography
US8437566B2 (en) * 2007-04-27 2013-05-07 Microsemi Corporation Software methodology for autonomous concealed object detection and threat assessment
US8224021B2 (en) * 2008-03-14 2012-07-17 Millivision Technologies, Inc. Method and system for automatic detection of a class of objects
US11069054B2 (en) 2015-12-30 2021-07-20 Visiongate, Inc. System and method for automated detection and monitoring of dysplasia and administration of immunotherapy and chemotherapy

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1471531A (en) * 1973-04-25 1977-04-27 Emi Ltd Radiography
US4233662A (en) * 1973-04-25 1980-11-11 Emi Limited Radiography
US4114042A (en) * 1973-04-25 1978-09-12 Emi Limited Radiography
US4038551A (en) * 1973-04-25 1977-07-26 E M I Limited Circuit for signal data obtained from an axial tomographic scanning apparatus
US4873632A (en) * 1984-04-27 1989-10-10 The Curators Of The University Of Missouri Apparatus and methods for scatter reduction in radiation imaging
US4903204A (en) * 1987-12-01 1990-02-20 Duke University Matrix inversion tomosynthesis improvements in longitudinal X-ray slice imaging
US5032728A (en) * 1988-11-09 1991-07-16 The University Of Iowa Research Foundation Single photon emission computed tomography system
US5170439A (en) * 1991-06-11 1992-12-08 Picker International, Inc. Cone beam reconstruction using combined circle and line orbits

Also Published As

Publication number Publication date
WO1992020032A1 (fr) 1992-11-12
DK0536357T3 (da) 1999-02-01
DE69226321T2 (de) 1999-04-01
EP0536357B1 (fr) 1998-07-22
EP0536357A1 (fr) 1993-04-14
JPH05508093A (ja) 1993-11-18
ATE168801T1 (de) 1998-08-15
US5421330A (en) 1995-06-06
FR2675927A1 (fr) 1992-10-30
FR2675927B1 (fr) 1993-07-30
DE69226321D1 (de) 1998-08-27

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