FR2393496A1 - Procede d'analyse et d'etude d'une surface - Google Patents

Procede d'analyse et d'etude d'une surface

Info

Publication number
FR2393496A1
FR2393496A1 FR7717468A FR7717468A FR2393496A1 FR 2393496 A1 FR2393496 A1 FR 2393496A1 FR 7717468 A FR7717468 A FR 7717468A FR 7717468 A FR7717468 A FR 7717468A FR 2393496 A1 FR2393496 A1 FR 2393496A1
Authority
FR
France
Prior art keywords
light pen
crt
coordinate data
data processor
analysis system
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.)
Granted
Application number
FR7717468A
Other languages
English (en)
Other versions
FR2393496B1 (fr
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.)
ASTEC
Original Assignee
ASTEC
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 ASTEC filed Critical ASTEC
Priority to FR7717468A priority Critical patent/FR2393496A1/fr
Publication of FR2393496A1 publication Critical patent/FR2393496A1/fr
Application granted granted Critical
Publication of FR2393496B1 publication Critical patent/FR2393496B1/fr
Granted legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
    • A61B5/1079—Measuring physical dimensions, e.g. size of the entire body or parts thereof using optical or photographic means
    • 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
    • A61B6/503—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 diagnosis of the heart
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/12—Edge-based segmentation

Landscapes

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

Abstract

L'invention concerne un procédé d'analyse et d'étude d'une surface, ou des paramètres définissant une courbe fermée quelconque. Le procédé, par détourage lumineux de l'image de la surface à étudier sur un écran cathodique, est caractérisé en ce que l'on provoque un balayage systématique de l'écran et en ce que l'on blanchit la zone délimitée progressivement, au fur et à mesure de son balayage. Application à l'étude radiologique d'organes par mise en mémoire logique de l'image de ces organes pour qu'un calculateur puisse en traiter ensuite les coordonnées.
FR7717468A 1977-06-01 1977-06-01 Procede d'analyse et d'etude d'une surface Granted FR2393496A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7717468A FR2393496A1 (fr) 1977-06-01 1977-06-01 Procede d'analyse et d'etude d'une surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7717468A FR2393496A1 (fr) 1977-06-01 1977-06-01 Procede d'analyse et d'etude d'une surface

Publications (2)

Publication Number Publication Date
FR2393496A1 true FR2393496A1 (fr) 1978-12-29
FR2393496B1 FR2393496B1 (fr) 1980-04-04

Family

ID=9191806

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7717468A Granted FR2393496A1 (fr) 1977-06-01 1977-06-01 Procede d'analyse et d'etude d'une surface

Country Status (1)

Country Link
FR (1) FR2393496A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4856038A (en) * 1986-09-26 1989-08-08 Siemens Aktiengesellschaft Dental x-ray diagnostics installation for producing panoramic exposures of slices in the skull
US4875225A (en) * 1987-02-16 1989-10-17 Siemens Aktiengesellschaft X-ray video system and method for the transillumination of an examination subject
FR2827399A1 (fr) * 2001-07-12 2003-01-17 Bruno Regnier Ardoise de mesure a ecran tactile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4856038A (en) * 1986-09-26 1989-08-08 Siemens Aktiengesellschaft Dental x-ray diagnostics installation for producing panoramic exposures of slices in the skull
US4875225A (en) * 1987-02-16 1989-10-17 Siemens Aktiengesellschaft X-ray video system and method for the transillumination of an examination subject
FR2827399A1 (fr) * 2001-07-12 2003-01-17 Bruno Regnier Ardoise de mesure a ecran tactile

Also Published As

Publication number Publication date
FR2393496B1 (fr) 1980-04-04

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Legal Events

Date Code Title Description
ST Notification of lapse