JP4571625B2 - 光断層映像法による画像化 - Google Patents
光断層映像法による画像化 Download PDFInfo
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- JP4571625B2 JP4571625B2 JP2006514326A JP2006514326A JP4571625B2 JP 4571625 B2 JP4571625 B2 JP 4571625B2 JP 2006514326 A JP2006514326 A JP 2006514326A JP 2006514326 A JP2006514326 A JP 2006514326A JP 4571625 B2 JP4571625 B2 JP 4571625B2
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- light
- generate
- dimensional
- intraoral
- imaging system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0062—Arrangements for scanning
- A61B5/0066—Optical coherence imaging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0082—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes
- A61B5/0088—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes for oral or dental tissue
-
- 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
- A61C9/0073—Interferometric means or methods, e.g. creation of a hologram
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/02—Interferometers
- G01B9/0209—Low-coherence interferometers
- G01B9/02091—Tomographic interferometers, e.g. based on optical coherence
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B2290/00—Aspects of interferometers not specifically covered by any group under G01B9/02
- G01B2290/65—Spatial scanning object beam
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/4795—Scattering, i.e. diffuse reflection spatially resolved investigating of object in scattering medium
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Radiology & Medical Imaging (AREA)
- Engineering & Computer Science (AREA)
- Audiology, Speech & Language Pathology (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Epidemiology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Endoscopes (AREA)
- Instruments For Measurement Of Length By Optical Means (AREA)
Description
xi=Rcosθsinψ+x0 式1
yi=Rcosψsinθ+y0 式2
プロセッサーは、上記パラメーターに基づきこれらの式を使って、座標xi、yi及びziを求めるように構成されていてもよい。
Claims (18)
- 成分要素を有する構造光のビームを生成するように構成されている光源と、
該構造光のビームに基づいて基準の光のビームを生成するように構成されている基準アームと、
該構造光のビームを対象物に向けて投射し、該ビームの少なくとも一部の反射を検出するように構成されているプロジェクターであって、該ビームは、該対象物の三次元(3D)の外表面を横切る二次元(2D)のパターンに沿って、該対象物の該3Dの外表面を表現する反射データを生成するように移動するドットとして該対象物に向けて投射される、プロジェクターと、
該基準ビームと該反射を組み合わせて、光の重畳干渉パターンを生成するように構成されているカプラと、
該光の重畳干渉パターンを表す信号を生成するように構成されているセンサーと、
該対象物の該三次元(3D)の外表面を表現するデータセットを生成するように構成されているプロセッサーであって、該データセットは基本的に該反射データの情報から生成される、プロセッサーと、
を備えている口腔内デジダイザー。 - 該プロジェクターは、口腔内で操作できるように構成されている手持ち式の口腔内プローブを備えている、請求項1に記載の口腔内デジタイザー。
- 該口腔内プローブは、該構造光のビームを生体内歯群に向けて投射し、該歯群から反射された光を検出する、請求項1に記載の口腔内デジタイザー。
- 該基準アームは、時間変動ベースラインパターンを生成し、該プロセッサーは、時間領域のデータ処理に従ってデータセットを生成するように構成されている、請求項1に記載の口腔内デジタイザー。
- 該センサーが生成する信号は、該光の重畳干渉パターンの形状、分布及び組成を含んでいる、請求項1に記載の口腔内デジタイザー。
- 該基準アームは、固定基準ベースラインのパターンを生成し、該センサーは、
該光の重畳干渉パターンを成分要素に分離するように構成されている分光計と、
該成分要素を検出するように構成されているリニアフォトセンサーと、を備えている、請求項1に記載の口腔内デジタイザー。 - 該分光計は格子を備えている、請求項6に記載の口腔内デジタイザー。
- 該光センサーは、電荷結合デバイスを備えている、請求項7に記載の口腔内デジタイザー。
- 該プロセッサーは、フーリエ領域データ処理に従って該データセットを生成するように構成されている、請求項1に記載の口腔内デジタイザー。
- 該光センサーは、光検出器のアレイを備えている、請求項9に記載の口腔内デジタイザー。
- 該光源は、該光のビームを第1ビームと第2ビームに分割するように構成されているビームスプリッターを備えている、請求項1に記載の口腔内デジタイザー。
- 構造光のビームを、三次元(3D)の外表面を有する対象物に向けて投影し、該対象物の三次元の外表面からの、該構造光のビームの少なくとも一部の反射を検出するよう構成されているプロジェクターであって、該構造光のビームは、該対象物の該3Dの外表面を表現する反射データを生成するように二次元(2D)のパターンに沿って移動するドットとして投射されている、プロジェクターと、
該反射と、該光のビームに基づいて生成された基準ビームを含む重畳干渉パターンを生成するように構成されているカプラと、
該重畳干渉パターンに基づいて、該対象物の多次元の視覚画像を表すデータセットを生成するように構成されているプロセッサーであって、該データセットは、基本的に該反射データの情報から生成される、プロセッサーと、
を含んでいる画像化システム。 - 該プロセッサーは、時間領域データ処理に基づいて前記データセットを生成する、請求項12に記載の画像化システム。
- 該プロセッサーは、フーリエ領域データ処理に基づいて前記データセットを生成する、請求項12に記載の画像化システム。
- 該多次元画像は、前記対象物の三次元の視覚的表示を含んでいる、請求項12に記載の画像化システム。
- 該多次元画像は、前記対象物の、視覚的に隠された部分を含んでいる、請求項12に記載の画像化システム。
- 該対象物は歯科アイテムである、請求項16に記載の画像化システム。
- 該隠された部分は、縁部を含んでいる、請求項17に記載の画像化システム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US46875903P | 2003-05-05 | 2003-05-05 | |
US60/468,759 | 2003-05-05 | ||
PCT/US2004/014383 WO2004100068A2 (en) | 2003-05-05 | 2004-05-05 | Optical coherence tomography imaging |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008504049A JP2008504049A (ja) | 2008-02-14 |
JP4571625B2 true JP4571625B2 (ja) | 2010-10-27 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006514326A Expired - Fee Related JP4571625B2 (ja) | 2003-05-05 | 2004-05-05 | 光断層映像法による画像化 |
Country Status (6)
Country | Link |
---|---|
US (3) | US7355721B2 (ja) |
EP (1) | EP1620007A4 (ja) |
JP (1) | JP4571625B2 (ja) |
AU (1) | AU2004237243B2 (ja) |
CA (1) | CA2536969C (ja) |
WO (1) | WO2004100068A2 (ja) |
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WO2004100068A2 (en) | 2004-11-18 |
AU2004237243B2 (en) | 2010-11-11 |
CA2536969A1 (en) | 2004-11-18 |
AU2004237243A1 (en) | 2004-11-18 |
CA2536969C (en) | 2009-09-29 |
WO2004100068A3 (en) | 2005-02-17 |
US20050024646A1 (en) | 2005-02-03 |
JP2008504049A (ja) | 2008-02-14 |
EP1620007A4 (en) | 2009-07-01 |
US8345261B2 (en) | 2013-01-01 |
EP1620007A2 (en) | 2006-02-01 |
US20120176626A1 (en) | 2012-07-12 |
US8144336B2 (en) | 2012-03-27 |
US7355721B2 (en) | 2008-04-08 |
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