DK2568870T3 - Scanning af hulrum med begrænset tilgængelighed - Google Patents

Scanning af hulrum med begrænset tilgængelighed Download PDF

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Publication number
DK2568870T3
DK2568870T3 DK11762051.8T DK11762051T DK2568870T3 DK 2568870 T3 DK2568870 T3 DK 2568870T3 DK 11762051 T DK11762051 T DK 11762051T DK 2568870 T3 DK2568870 T3 DK 2568870T3
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Denmark
Prior art keywords
scanner
light
ear
camera
data
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DK11762051.8T
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English (en)
Inventor
Karl-Josef Hollenbeck
Michael Vinther
Der Poel Mike Van
David Fischer
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3Shape As
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G01B11/245—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00163—Optical arrangements
    • A61B1/00174—Optical arrangements characterised by the viewing angles
    • A61B1/00177—Optical arrangements characterised by the viewing angles for 90 degrees side-viewing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00163—Optical arrangements
    • A61B1/00174—Optical arrangements characterised by the viewing angles
    • A61B1/00181—Optical arrangements characterised by the viewing angles for multiple fixed viewing angles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/05—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/227—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for ears, i.e. otoscopes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00147—Holding or positioning arrangements
    • A61B1/00149—Holding or positioning arrangements using articulated arms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00163—Optical arrangements
    • A61B1/00165—Optical arrangements with light-conductive means, e.g. fibre optics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Optics & Photonics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Claims (14)

  1. SCANNING AF HULRUM MED BEGRÆNSET TILGÆNGELIGHED
    1. Fremgangsmåde til scanning af delvist blokerede indvendige overflader, hvor fremgangsmåden omfatter at: - tilvejebringe en sondeformet scanner (101, 102, 1201), som har en akse, hvor den sondeformede scanner omfatter: • mindst en lyskilde (202), der er konfigureret til at generere og projektere struktureret lys, og • mindst et kamera (205, 505), som er konfigureret til at optage 2D-billeder; - indføre den sondeformede scanner i et hulrum af en genstand (502), hvor hulrummet er begrænset af en indvendig overflade (502) af genstanden; - generere og projektere struktureret lys (501) fra lyskilden af sonden, som frembringer et mønster på den indvendige overflade af genstanden; - optage en serie af 2D-billeder af mønsterets refleksion fra den indvendige overflade ved anvendelse af kameraet; - kombinere serien af 2D-billeder for at opnå 3D-koordinater fra den virkelige verden af den indvendige overflade; - registrere et eller flere huller i 3D-koordinaterne fra den virkelige verden svarende til områder af den indvendige overflade, hvor en visuel adgang er blokeret på grund af den geometriske form af den indvendige overflade; og - tilvejebringe data og behandle dataene for at generere 3D-koordinater fra den virkelige verden for områderne af den indvendige overflade, hvor den visuelle adgang er blokeret.
  2. 2. Fremgangsmåde til scanning ifølge krav 1, hvor en del af dataene om overfladeinformationer for det venstre øre anvendes som en del af dataene om overfladeinformationer for det højre øre, hvis der er dele af det højre øre, hvor der ikke er blevet erhvervet overfladeinformationer, og vice versa.
  3. 3. Fremgangsmåde til scanning ifølge et af de foregående krav, hvor huller i en scanning udledes eller interpoleres på basis af tidligere scanninger af personens øre.
  4. 4. Fremgangsmåde til scanning ifølge det foregående krav, hvor fremgangsmåden omfatter at: - tilvejebringe, at kameraet (205, 505) omfatter en flerhed af sensorelementer eller en flerhed af grupper af sensorelementer; - variere fokusplanet af mønsteret over et område af fokusplanpositioner, mens der bibeholdes et i det væsentlige fikseret rumligt forhold mellem kameraet og den indvendige overflade, hvor kombinationen af 2D-billeder ved analyse af 2D-billederne omfatter bestemmelse af i-fokus-positionerne af fokusplanet for: a) hvert af en flerhed af sensorelementer i kameraet for området af fokusplanpositioner eller b) hver af en flerhed af grupper af sensorelementerne i kameraet for området af fokusplaner, og hvor 3D-koordinaterne fra den virkelige verden er fra i-fokus-positionerne.
  5. 5. Fremgangsmåde til scanning ifølge et af de foregående krav, hvor huller i overfladeinformationerne lukkes, ved at de tilpasses matematiske overflader af højere orden som for eksempel anden orden, tredje orden, fjerde orden osv.
  6. 6. Fremgangsmåde til scanning ifølge et af de foregående krav, hvor huller i overfladeinformationerne lukkes ved anvendelse af informationer om, hvor der ikke findes nogen overflade.
  7. 7. Fremgangsmåde til scanning ifølge et af de foregående krav, hvor huller i overfladeinformationerne lukkes ved anvendelse af andre data end billeddata som for eksempel farve, interferens, vinkel med reflekteret lys og/eller data fra en eller flere andre sensorer end kameraet.
  8. 8. Fremgangsmåde til scanning ifølge et af de foregående krav, hvor der identificeres fremmedlegemer i øregangen.
  9. 9. Fremgangsmåde til scanning ifølge krav 8, hvor identificering af fremmedlegemer omfatter detektering af refleksioner fra fremmedlegemet og analysering af forskellen i det reflekterede lys fra hhv. huden og fremmedlegemet.
  10. 10. Fremgangsmåde til scanning ifølge et af de foregående krav, hvor fremgangsmåden omfatter anvendelse af monokromatisk lys til illuminering af overfladen for at analysere reflekteret lys.
  11. 11. Fremgangsmåde til scanning ifølge et af kravene 8 til 10, hvor fremgangsmåden omfatter identificering af fremmedlegemer ved at korrelere overfladedata med 3D-positionen af de specifikke data.
  12. 12. Fremgangsmåde til scanning ifølge et af kravene 8 til 11, hvor fremmedlegemer i øret udfiltreres fra billederne af øret.
  13. 13. Fremgangsmåde til scanning ifølge et af kravene 8 til 12, hvor operatøren får vist fremmedlegemer på et display, herunder hvor fremmedlegemerne er farvet med en anden farve på displayet end resten af overfladen på billedet.
  14. 14. Scannersystem til tredimensionel scanning af indvendige overflader, hvilket scan nersystem omfatter: - en sondeformet scanner (101, 102, 1201), der er konfigureret til at blive ført ind i et hulrum, hvor den sondeformede scanner omfatter • mindst en lyskilde (202), som er tilpasset til at generere og projektere struktureret lys, som frembringer et mønster på den indvendige overflade af en genstand, hvor lyskilden udsender lys fra et emissionspunkt; og • mindst et kamera (205, 505), der er tilpasset til at optage 2D-billeder af mønsteret, hvor kameraet akkumulerer lys på et akkumulationspunkt; - en datakonverteringsindretning, som er tilpasset til at konvertere 2D-billeder til 3D-koordinater fra den virkelige verden, - en databehandlingsindretning, som er konfigureret til at registrere et eller flere huller i 3D-koordinaterne fra den virkelige verden svarende til områder af den indvendige overflade, hvor en visuel adgang er blokeret på grund af den geometriske form af den indvendige overflade, og til at tilvejebringe data og behandle dataene for at generere 3D-koordinater fra den virkelige verden for områderne af den indvendige overflade, hvor den visuelle adgang er blokeret.
DK11762051.8T 2010-03-30 2011-03-30 Scanning af hulrum med begrænset tilgængelighed DK2568870T3 (da)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US31888210P 2010-03-30 2010-03-30
DKPA201000264 2010-03-30
PCT/DK2011/050103 WO2011120526A1 (en) 2010-03-30 2011-03-30 Scanning of cavities with restricted accessibility

Publications (1)

Publication Number Publication Date
DK2568870T3 true DK2568870T3 (da) 2018-08-13

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Country Link
US (1) US20130027515A1 (da)
EP (2) EP3403568B1 (da)
DK (1) DK2568870T3 (da)
ES (2) ES2970406T3 (da)
WO (1) WO2011120526A1 (da)

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ES2970406T3 (es) 2024-05-28
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