FR2635965A1 - Sonde optique pour la mesure tridimensionnelle des dents dans la cavite buccale et procede de mise en oeuvre - Google Patents
Sonde optique pour la mesure tridimensionnelle des dents dans la cavite buccale et procede de mise en oeuvre Download PDFInfo
- Publication number
- FR2635965A1 FR2635965A1 FR8910708A FR8910708A FR2635965A1 FR 2635965 A1 FR2635965 A1 FR 2635965A1 FR 8910708 A FR8910708 A FR 8910708A FR 8910708 A FR8910708 A FR 8910708A FR 2635965 A1 FR2635965 A1 FR 2635965A1
- Authority
- FR
- France
- Prior art keywords
- fact
- teeth
- light source
- probe
- dimensional
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000005259 measurement Methods 0.000 title claims abstract description 25
- 230000003287 optical effect Effects 0.000 title claims abstract description 25
- 210000000214 mouth Anatomy 0.000 title claims abstract description 8
- 239000000523 sample Substances 0.000 claims abstract description 28
- 239000011159 matrix material Substances 0.000 claims abstract description 14
- 239000004973 liquid crystal related substance Substances 0.000 claims description 8
- 239000003086 colorant Substances 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000009182 swimming Effects 0.000 claims 1
- 230000010363 phase shift Effects 0.000 abstract description 7
- 238000005520 cutting process Methods 0.000 abstract description 4
- 238000000691 measurement method Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 3
- 241000628997 Flos Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000005305 interferometry Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
- G01B11/2513—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 with several lines being projected in more than one direction, e.g. grids, patterns
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C9/00—Impression cups, i.e. impression trays; Impression methods
- A61C9/004—Means or methods for taking digitized impressions
- A61C9/0046—Data acquisition means or methods
- A61C9/0053—Optical means or methods, e.g. scanning the teeth by a laser or light beam
- A61C9/006—Optical means or methods, e.g. scanning the teeth by a laser or light beam projecting one or more stripes or patterns on the teeth
-
- 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
-
- 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
-
- 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
- G01B11/2536—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 using several gratings with variable grating pitch, projected on the object with the same angle of incidence
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Optics & Photonics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Closed-Circuit Television Systems (AREA)
- Endoscopes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3829925A DE3829925C2 (de) | 1988-09-02 | 1988-09-02 | Vorrichtung zur optischen Vermessung von Zähnen in der Mundhöhle |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2635965A1 true FR2635965A1 (fr) | 1990-03-09 |
Family
ID=6362194
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8910708A Withdrawn FR2635965A1 (fr) | 1988-09-02 | 1989-08-09 | Sonde optique pour la mesure tridimensionnelle des dents dans la cavite buccale et procede de mise en oeuvre |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPH0616799B2 (enrdf_load_stackoverflow) |
CH (1) | CH680187A5 (enrdf_load_stackoverflow) |
DE (1) | DE3829925C2 (enrdf_load_stackoverflow) |
FR (1) | FR2635965A1 (enrdf_load_stackoverflow) |
SE (1) | SE468971B (enrdf_load_stackoverflow) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2693003A1 (fr) * | 1992-06-30 | 1993-12-31 | Peugeot | Dispositif opto-électronique de numérisation de formes tridimensionnelles d'un objet. |
EP0572798A3 (de) * | 1992-06-03 | 1995-05-17 | Aaron Industrieautomation Und | Vorrichtung zum berührungslosen Vermessen eines dreidimensionalen Objektes. |
EP0660078A1 (de) * | 1993-12-15 | 1995-06-28 | Gerd Prof. Dr. Häusler | Vorrichtung zur Erzeugung streifenartiger Lichtmuster |
WO1998004209A1 (de) * | 1996-07-31 | 1998-02-05 | Rsm Regel-, Steuer- Und Messtechnik | Verfahren zum herstellen von zahnersatz |
US5857853A (en) * | 1993-07-26 | 1999-01-12 | Nobel Biocare Ab | Method of manufacturing a prosthesis to be fixed to implants in the jawbone of a patient, and a system for manufacturing such prostheses |
WO2012171935A3 (de) * | 2011-06-15 | 2013-02-28 | Sirona Dental Systems Gmbh | Verfahren zur optischen dreidimensionalen vermessung eines dentalen objekts |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3932151A1 (de) * | 1989-09-22 | 1991-04-04 | Peter Rohleder | Vorrichtung zur scannenden erfassung eines innenraums |
DE4027328B4 (de) * | 1990-08-29 | 2004-07-22 | Sirona Dental Systems Gmbh | 3D-Kamera zur Erfassung von Oberflächenstrukturen, insbesondere für zahnmedizinische Zwecke |
DE4034007C2 (de) * | 1990-10-25 | 2001-05-10 | Sirona Dental Systems Gmbh | Verfahren und Vorrichtung zur optischen Erfassung von Oberflächenstrukturen an Zähnen |
DE4134117C2 (de) * | 1991-10-15 | 1996-02-01 | Kaltenbach & Voigt | Verfahren zur optischen Vermessung von Objekten |
DE4206836C2 (de) * | 1992-03-04 | 1994-07-14 | Kaltenbach & Voigt | Sonde zur optischen Vermessung von Zähnen |
JPH05253248A (ja) * | 1992-03-10 | 1993-10-05 | Komabayashi Corp:Yugen | 電算数値データー処理による入歯製造方法 |
DE9300356U1 (de) * | 1993-01-13 | 1993-03-04 | Krupp Medizintechnik GmbH, 4300 Essen | Vorrichtung zur Überprüfung oder Vermessung eines zahnärztlichen Abdruckes oder Modelles eines Gebisses und zur Vermessung oder Aufzeichnung von aus Fernröntgenbildern gemessenen Wertes |
SE501820C2 (sv) * | 1993-05-21 | 1995-05-22 | Tritech Mekatronik Ab | Metod och anordning för att skapa en modell av en tandrestauration |
DE4335121A1 (de) * | 1993-10-17 | 1995-05-04 | Robert Prof Dr Ing Massen | Automatische Flächenrückführung bei optischen 3D Digitalisierer |
SE512621C2 (sv) * | 1993-12-06 | 2000-04-10 | Nobel Biocare Ab | Metod och kamera för stereofotografering av tänder |
SE502427C2 (sv) * | 1994-02-18 | 1995-10-16 | Nobelpharma Ab | Metod och anordning utnyttjande artikulator och datorutrustning |
DE4415659C1 (de) * | 1994-05-04 | 1995-11-30 | Reimond Bernstein | Vorrichtung und Verfahren zur Herstellung von Gegenständen auf der Grundlage von Daten, die aus einer optischen Erfassung eines Objektes ermittelt werden |
DE19515949C2 (de) * | 1995-05-02 | 1999-02-04 | Continental Ag | Verfahren und Vorrichtung zur flächenhaften Vermessung und Erfassung des Profilabriebs eines Fahrzeugreifens |
DE19536297C2 (de) * | 1995-09-29 | 2003-10-02 | Daimler Chrysler Ag | Verfahren zur geometrischen Kalibrierung von optischen 3D-Sensoren zur dreidimensionalen Vermessung von Objekten und Vorrichtung hierzu |
DE19608632B4 (de) * | 1996-03-06 | 2005-12-29 | Scaps Gmbh | Vorrichtung zur Bestimmung der Topographie einer Oberfläche und Verfahren zu Bestimmen der Topographie einer Oberfläche |
DE19619951C2 (de) * | 1996-05-17 | 2003-02-06 | Regine Tuckermann | Optisches Vermessungssystem des Zahnapparates mit einer miniaturisierten Spezialendoskopkamera, einer Mikrolasersonde und einer mechanischen Messtasternadel zur Darstellung und Korrektur der Zahntopographie, insbesondere der Okklusalflächen, im Hinblick auf die Optimierung der Bissgestaltung, sowie einer Digitalisierung der Messwerte und Übertragung auf CNC zur Herstellung von Füllungen und Zahnersatz |
SE510203C2 (sv) * | 1997-04-18 | 1999-04-26 | Optronic Consult Ab | Sätt och anordning för inmätning av en tredimensionell form |
DE19742264C2 (de) * | 1997-09-25 | 2001-09-20 | Vosseler Erste Patentverwertun | Endoskop |
DE19753246C2 (de) * | 1997-12-01 | 2002-11-28 | Roland Seifert | Vorrichtung zur Bestimmung von dreidimensionalen Daten von Objekten |
RU2153861C1 (ru) * | 1999-04-07 | 2000-08-10 | Московский медицинский стоматологический институт | Устройство для измерения параметров зубных дуг на гипсовых моделях |
US6648640B2 (en) | 1999-11-30 | 2003-11-18 | Ora Metrix, Inc. | Interactive orthodontic care system based on intra-oral scanning of teeth |
US7471821B2 (en) | 2000-04-28 | 2008-12-30 | Orametrix, Inc. | Method and apparatus for registering a known digital object to scanned 3-D model |
US7027642B2 (en) | 2000-04-28 | 2006-04-11 | Orametrix, Inc. | Methods for registration of three-dimensional frames to create three-dimensional virtual models of objects |
RU2171097C1 (ru) * | 2000-11-01 | 2001-07-27 | Марков Борис Павлович | Конролирующее устройство прибора для определения подвижности зуба |
DE10104483A1 (de) * | 2001-01-31 | 2002-10-10 | Forschungszentrum Fuer Medizin | Vorrichtung zur dreidimensionalen Vermessung von Oberflächen in Hohlräumen |
WO2004085956A2 (en) | 2003-03-24 | 2004-10-07 | D3D, L.P. | Laser digitizer system for dental applications |
DE102005052294A1 (de) * | 2005-10-26 | 2007-05-03 | Jaruszewski, Lutz, Dr. | Messvorrichtung und Verfahren zur Bestimmung des Aktivitätsstatus initialkariöser Schmelzläsionen |
US8792707B2 (en) | 2007-08-17 | 2014-07-29 | Renishaw Plc | Phase analysis measurement apparatus and method |
DE102008040949B4 (de) * | 2008-08-01 | 2012-03-08 | Sirona Dental Systems Gmbh | Optisches Projektionsgitter, Messkamera mit optischem Projektionsgitter und Verfahren zur Erzeugung eines optischen Projektionsgitters |
DE102008040947B4 (de) | 2008-08-01 | 2014-02-06 | Sirona Dental Systems Gmbh | 3D-Dentalkamera zur Erfassung von Oberflächenstrukturen eines Messobjekts mittels Triangulation |
US20100268069A1 (en) * | 2009-04-16 | 2010-10-21 | Rongguang Liang | Dental surface imaging using polarized fringe projection |
US8570530B2 (en) * | 2009-06-03 | 2013-10-29 | Carestream Health, Inc. | Apparatus for dental surface shape and shade imaging |
GB0915904D0 (en) | 2009-09-11 | 2009-10-14 | Renishaw Plc | Non-contact object inspection |
DE102009043538A1 (de) | 2009-09-30 | 2011-03-31 | Siemens Aktiengesellschaft | Messendoskop |
DE102009043523A1 (de) * | 2009-09-30 | 2011-04-07 | Siemens Aktiengesellschaft | Endoskop |
EP2950745B1 (en) * | 2013-02-04 | 2018-11-28 | D4D Technologies, LLC | Intra-oral scanning device with illumination frames interspersed with image frames |
US9107578B2 (en) * | 2013-03-31 | 2015-08-18 | Gyrus Acmi, Inc. | Panoramic organ imaging |
DE102015209410B4 (de) * | 2015-05-22 | 2018-05-09 | Sirona Dental Systems Gmbh | Kamera und Verfahren zur dreidimensionalen Vermessung eines dentalen Objekts |
CN108392282B (zh) * | 2018-02-08 | 2020-08-25 | 上海雷帕罗义齿有限公司 | 一种义齿智能化加工系统 |
DE102020208368A1 (de) | 2020-07-03 | 2022-01-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | Verfahren und Vorrichtung zur Ermittlung einer dreidimensionalen Form |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0091876A1 (fr) * | 1982-04-14 | 1983-10-19 | Duret, François | Dispositif de prise d'empreinte par des moyens optiques, notamment en vue de la réalisation automatique de prothèses |
US4663720A (en) * | 1984-02-21 | 1987-05-05 | Francois Duret | Method of and apparatus for making a prosthesis, especially a dental prosthesis |
DE3541891A1 (de) * | 1985-11-27 | 1987-06-04 | Kambiz Kachanian | Verfahren zur erfassung, speicherung und wiedergabe von geometrischen daten von objekten, insbesondere von kiefermodellen und eine vorrichtung zur durchfuehrung des verfahrens |
FR2594321A1 (fr) * | 1986-02-17 | 1987-08-21 | Inglese Jean Marc | Dispositif d'aide a la gestion des soins pour cabinet dentaire |
EP0250993B1 (de) * | 1986-06-24 | 1991-11-13 | Marco Dr. Brandestini | Verfahren und Vorrichtung zur Bestimmung und Darstellung der dreidimensionalen Gestalt von präparierten Zähnen |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4575805A (en) * | 1980-12-24 | 1986-03-11 | Moermann Werner H | Method and apparatus for the fabrication of custom-shaped implants |
FR2562236A1 (fr) * | 1984-03-27 | 1985-10-04 | Duret Francois | Procede de reconnaissance tridimensionnelle de formes d'objets, tels que d'organes en medecine ou en chirurgie dentaire |
FR2610821B1 (fr) * | 1987-02-13 | 1989-06-09 | Hennson Int | Procede de prise d'empreinte medicale et dispositif pour sa mise en oeuvre |
DE3723555C2 (de) * | 1987-07-16 | 1994-08-11 | Steinbichler Hans | Verfahren zur Herstellung von Zahnersatz |
-
1988
- 1988-09-02 DE DE3829925A patent/DE3829925C2/de not_active Expired - Fee Related
-
1989
- 1989-08-09 FR FR8910708A patent/FR2635965A1/fr not_active Withdrawn
- 1989-08-16 SE SE8902748A patent/SE468971B/sv not_active IP Right Cessation
- 1989-09-01 JP JP1227298A patent/JPH0616799B2/ja not_active Expired - Lifetime
- 1989-09-01 CH CH3170/89A patent/CH680187A5/de not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0091876A1 (fr) * | 1982-04-14 | 1983-10-19 | Duret, François | Dispositif de prise d'empreinte par des moyens optiques, notamment en vue de la réalisation automatique de prothèses |
US4663720A (en) * | 1984-02-21 | 1987-05-05 | Francois Duret | Method of and apparatus for making a prosthesis, especially a dental prosthesis |
DE3541891A1 (de) * | 1985-11-27 | 1987-06-04 | Kambiz Kachanian | Verfahren zur erfassung, speicherung und wiedergabe von geometrischen daten von objekten, insbesondere von kiefermodellen und eine vorrichtung zur durchfuehrung des verfahrens |
FR2594321A1 (fr) * | 1986-02-17 | 1987-08-21 | Inglese Jean Marc | Dispositif d'aide a la gestion des soins pour cabinet dentaire |
EP0250993B1 (de) * | 1986-06-24 | 1991-11-13 | Marco Dr. Brandestini | Verfahren und Vorrichtung zur Bestimmung und Darstellung der dreidimensionalen Gestalt von präparierten Zähnen |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0572798A3 (de) * | 1992-06-03 | 1995-05-17 | Aaron Industrieautomation Und | Vorrichtung zum berührungslosen Vermessen eines dreidimensionalen Objektes. |
FR2693003A1 (fr) * | 1992-06-30 | 1993-12-31 | Peugeot | Dispositif opto-électronique de numérisation de formes tridimensionnelles d'un objet. |
US5857853A (en) * | 1993-07-26 | 1999-01-12 | Nobel Biocare Ab | Method of manufacturing a prosthesis to be fixed to implants in the jawbone of a patient, and a system for manufacturing such prostheses |
US6287119B1 (en) | 1993-07-26 | 2001-09-11 | Nobel Biocare Ab | Method of manufacturing a prosthesis to be fixed to implants in the jawbone of a patient, and a system for manufacturing such prostheses |
EP0660078A1 (de) * | 1993-12-15 | 1995-06-28 | Gerd Prof. Dr. Häusler | Vorrichtung zur Erzeugung streifenartiger Lichtmuster |
WO1998004209A1 (de) * | 1996-07-31 | 1998-02-05 | Rsm Regel-, Steuer- Und Messtechnik | Verfahren zum herstellen von zahnersatz |
WO2012171935A3 (de) * | 2011-06-15 | 2013-02-28 | Sirona Dental Systems Gmbh | Verfahren zur optischen dreidimensionalen vermessung eines dentalen objekts |
US9980651B2 (en) | 2011-06-15 | 2018-05-29 | Sirona Dental Systems Gmbh | Method for the optical three-dimensional measurement of a dental object |
Also Published As
Publication number | Publication date |
---|---|
CH680187A5 (enrdf_load_stackoverflow) | 1992-07-15 |
DE3829925A1 (de) | 1990-03-15 |
SE8902748L (sv) | 1990-03-03 |
SE468971B (sv) | 1993-04-26 |
JPH0616799B2 (ja) | 1994-03-09 |
SE8902748D0 (sv) | 1989-08-16 |
DE3829925C2 (de) | 1994-03-03 |
JPH02119858A (ja) | 1990-05-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2635965A1 (fr) | Sonde optique pour la mesure tridimensionnelle des dents dans la cavite buccale et procede de mise en oeuvre | |
US10888401B2 (en) | Viewfinder with real-time tracking for intraoral scanning | |
US20240056561A1 (en) | User interface for intraoral scanning with tooth color detection | |
JP4913597B2 (ja) | 高速マルチプルライン三次元デジタル化法 | |
JP4111592B2 (ja) | 3次元入力装置 | |
EP3268935B1 (en) | Apparatus and method of texture mapping for dental 3d scanner | |
CN112469361B (zh) | 用于在共焦相机中生成动态投影图案的设备、方法和系统 | |
US6438272B1 (en) | Method and apparatus for three dimensional surface contouring using a digital video projection system | |
US6724490B2 (en) | Image capturing apparatus and distance measuring method | |
US8638448B2 (en) | Method and apparatus for imaging three-dimensional structure | |
US6252623B1 (en) | Three dimensional imaging system | |
JP2010507079A (ja) | 三次元輪郭の非接触検出のための装置および方法 | |
EP0278882A1 (fr) | Procédé de prise d'empreinte médicale et dispositif pour sa mise en oeuvre | |
CA2188005A1 (en) | Optical three-dimensional profilometry method based on processing speckle images in partially coherent, light, and interferometer implementing such a method | |
JP2008096439A (ja) | 物体の3次元座標を判定するための方法および装置 | |
JP2001066223A (ja) | 反射光品質を決定する方法 | |
JP2001116526A (ja) | 3次元形状計測装置 | |
JP2004309240A (ja) | 3次元形状測定装置 | |
FR2682473A1 (fr) | Procede et dispositif de relevement optique de la topographie d'objets. | |
JP2007322259A (ja) | エッジ検出方法、装置、及びプログラム | |
JPH11194018A (ja) | 被写体情報測定装置 | |
JP2691406B2 (ja) | 画像再構成装置 | |
JP3847686B2 (ja) | 3次元形状計測装置 | |
US20040166471A1 (en) | Method and device for optical measurement of a cast model of a tooth in restorative dentistry | |
JPS61260107A (ja) | 3次元計測方法および装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |