公开(公告)号：EP1307715A1

公开(公告)日：2003-05-07

申请号：EP01954154.9

申请日：2001-08-03

Applicant: Digital Colour Measurement Limited

Inventor： LEEDHAM, David ,  GILL, Malcolm ,  PRIESTLEY, Derek ,  BURKINSHAW, Stephen ,  NATTRESS, Brian

IPC: G01J3/46

CPC classification number: G01J3/508 ,  G01J3/0224 ,  G01J3/46 ,  G01J3/463 ,  G06T7/90

Abstract: A method and systemof image processing on a computer, and a computer program product adapted for image processing, wherein a digital image of an article is improved into a computer, the digital image is colour-corrected, an internal palette is generated from a database of predetermined colour attributes and applied to teh colour-corrected digital image so as to generate a second digital image, and wherein a third digital image corresponding to the second digital image is generated, but replacing the predetermined colour attributes with vivid colour attributes. The present invention is of particular utility in the manufacture of dental prestheses from ceramics materials which substantially match a person's natural tooth colours.

公开(公告)号：EP1109510A1

公开(公告)日：2001-06-27

申请号：EP99939962.9

申请日：1999-09-01

Applicant: Identa I/S

Inventor： BYBJERG PEDERSEN, Lars ,  JOHANSEN, Ole ,  KASTFELT, Svend-Ove

IPC: A61C19/10 ,  G01J3/46

CPC classification number: G01J3/02 ,  G01J3/0218 ,  G01J3/46 ,  G01J3/502 ,  G01J3/508

Abstract: Method for measuring the colour of a patient's tooth, e.g. for preparing a dental prosthesis, by which method a measuring probe (1) is placed adjacent the tooth, light being emitting from the probe (1) which after reflection from the surface of the tooth is received by the same probe (1). The measuring probe (1) comprises two light conductor members (2, 3), one for transmitting light and one for receiving light, the first light conductor member (2) being formed of a bundle of light conductors concentrically arranged in relation to the second light conductor member (3). A spectroscopic member (7) communicating with a processor means (8) determines the shade of the tooth in relation to a given colour guide.

Abstract translation: 用于测量患者牙齿颜色的方法，例如， 为了制备牙科假体，通过这种方法将测量探针（1）放置在与牙齿相邻的位置处，从探针（1）发射的光在从牙齿表面反射之后由相同的探针（1）接收。 测量探头（1）包括两个光导体构件（2,3），一个用于传输光，一个用于接收光，第一光导体构件（2）由一束相同于第二个 光导体部件（3）。 与处理器装置（8）通信的分光部件（7）确定相对于给定颜色引导件的牙齿的阴影。

公开(公告)号：EP0909376A1

公开(公告)日：1999-04-21

申请号：EP97901920.0

申请日：1997-01-02

Applicant: LJ Laboratories, L.L.C.

Inventor： JUNG, Wayne, D. ,  JUNG, Russel, W. ,  LOUDERMILK, Alan, R.

IPC: A61C19 ,  G01J3 ,  G01N21 ,  A61B1

CPC classification number: A61C19/10 ,  A61B2560/0233 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/04 ,  G01J3/10 ,  G01J3/46 ,  G01J3/50 ,  G01J3/508 ,  G01J3/51 ,  G01J3/513 ,  G01J3/524 ,  G01N21/474 ,  G01N21/57

Abstract: Color/optical characteristics measuring systems and methods are disclosed. Perimeter receiver fiber optics/elements (7) are spaced apart from a central source fiber optic/element (5) and received light reflected from the surface of the object (20) is measured. Light from the perimeter fiber optics (7) pass to a variety of filters. The system utilizes the perimeter receiver fiber optics (7) to determine information regarding the height and angle of the probe (1) with respect to the object (20) being measured. Under processor control (20), the color measurement may be made at a predetermined height and angle. Various color spectral photometer arrangements are disclosed. Translucency, fluorescence, and/or surface texture data also may be obtained. Audio feedback may be provided to guide operator use of the system. The probe (1) may have a removable or shielded tip for contamination prevention.

公开(公告)号：EP0437439A1

公开(公告)日：1991-07-24

申请号：EP89908142.0

申请日：1989-07-14

Applicant: GARIBALDI PTY. LTD.

Inventor： GRAHAM, Martin, Alan, Scott ,  CARTWRIGHT, Iain

IPC: A61C19 ,  B44D3 ,  G01J3

CPC classification number: A61C19/10 ,  G01J3/46 ,  G01J3/463 ,  G01J3/508

Abstract: Le procédé décrit utilise un ordinateur pour faire concorder la couleur d'articles photographiés au moyen d'une caméra vidéo immobile avec un groupe de couleurs de référence. Les photographies sont stockées sur une disquette (34) qui est lue sur un enregistreur (54). L'ordinateur (55) compare le groupe des couleurs de référence avec un groupe absolu de couleurs et produit un facteur de compensation qui est appliqué aux couleurs photographiées, de façon à produire une photographie corrigée. On peut sélectionner des zones de la photographie corrigée pour leur apporter une amélioration par ordinateur et on peut établir par ordinateur une table de correspondance pour faire concorder la couleur d'autres articles avec celle des articles photographiés.

公开(公告)号：EP0147232A2

公开(公告)日：1985-07-03

申请号：EP84309087.9

申请日：1984-12-27

Applicant: Hall, Neil Rex

Inventor： Hall, Neil Rex

IPC: A61C19/10 ,  G01N21/29

CPC classification number: G01J3/52 ,  A61C19/10 ,  G01J3/462 ,  G01J3/508 ,  G01N21/293

Abstract: The present invention discloses a set of dental colour indicator devices and a method of selecting dental colours. Each indicator device (20) has a number of colour samples (11-19) arranged in a regular array. Each of the samples corresponds to the colour at a corresponding location in an identical array formed on one of a plurality of transverse parallel cuts (26) through an elongate substantially elipsoid body (10) which represents the possible range of dental colours when graphically represented on a colour co-ordinate system such as the CIELAB psycometric colour system or the Munsell visual colour system. The selected colour is either the colour of one of the samples or a mixture of the colour of two adjacent samples.

公开(公告)号：EP2407763A3

公开(公告)日：2017-07-05

申请号：EP11005573.8

申请日：2011-07-07

Applicant: Carestream Health, Inc.

Inventor： Wong, Victor C. ,  Milch, James R. ,  Ray, Lawrence A. ,  Burns, Peter D.

IPC: G01J3/46 ,  G01J3/50 ,  G01J3/52

CPC classification number: A61B1/24 ,  A61B1/00006 ,  A61B1/00009 ,  A61B1/04 ,  A61B1/0638 ,  G01J3/46 ,  G01J3/462 ,  G01J3/465 ,  G01J3/50 ,  G01J3/501 ,  G01J3/508 ,  G01J3/524

Abstract: A method and apparatus for generating a color mapping for a dental object. The method includes generating a transformation matrix according to a set of spectral reflectance data for a statistically valid sampling of teeth. Illumination is directed toward the dental object over at least a first, a second, and a third wavelength band, one wavelength band at a time. For each of a plurality of pixels in an imaging array, an image data value is obtained, corresponding to each of the at least first, second, and third wavelength bands. The transformation matrix is applied to form the color mapping by generating a set of visual color values for each of the plurality of pixels according to the obtained image data values and according to image data values obtained from a reference object at the at least first, second, and third wavelength bands. The color mapping can be stored in an electronic memory.

Abstract translation: 一种用于生成牙科对象的颜色映射的方法和设备。 该方法包括根据用于牙齿的统计有效采样的一组光谱反射率数据生成变换矩阵。 通过至少第一，第二和第三波长带，一次一个波长带，将照明导向牙科物体。 对于成像阵列中的多个像素中的每一个，获得与至少第一，第二和第三波长带中的每一个相对应的图像数据值。 通过根据获得的图像数据值并且根据从参考对象获得的图像数据值生成用于多个像素中的每一个的一组可视颜色值来应用变换矩阵以形成颜色映射，所述图像数据值在至少第一，第二 和第三波段。 颜色映射可以存储在电子存储器中。

公开(公告)号：EP2739206B1

公开(公告)日：2017-05-17

申请号：EP12820383.3

申请日：2012-07-18

Applicant: Carestream Health, Inc.

Inventor： LIANG, Rongguang ,  MILCH, James ,  INGLESE, Jean-marc

IPC: A61B5/00

CPC classification number: A61B5/4547 ,  A61B5/0088 ,  G01J3/0229 ,  G01J3/0289 ,  G01J3/501 ,  G01J3/508

公开(公告)号：EP2919185A4

公开(公告)日：2016-07-13

申请号：EP13853936

申请日：2013-11-08

Applicant: FUJIFILM CORP

Inventor： TOZUKA KOICHI ,  ISHIBASHI HIDEYASU ,  OSANAI RYUSUKE ,  YOSHIDA NAOKO

IPC: G06T1/00 ,  G01N21/25 ,  H04N1/46 ,  H04N1/60 ,  H04N9/64

CPC classification number: H04N13/0037 ,  A61B5/0077 ,  A61B5/0088 ,  A61B5/1032 ,  A61B5/441 ,  A61C19/04 ,  G01J3/508 ,  G01J3/52 ,  G01J3/524 ,  G06T7/90 ,  G06T11/001 ,  G06T2207/10024 ,  G06T2207/30036 ,  H04N1/6086 ,  H04N9/643 ,  H04N9/735 ,  H04N13/0257

Abstract: This camera system comprises: a database which stores a plurality of three-dimensional profiles, wherein conversion relations, which are computed from image data which is obtained by photographing a plurality of reference color three-dimensional objects whereto reference colorimetric values are pre-appended and corresponding reference colorimetric values, are associated with a plurality of photographic illumination conditions; a selection unit which, on the basis of an illumination condition when photographing a three-dimensional photographic subject, selects the three-dimensional color profile corresponding to said illumination condition; and a color conversion unit which, on the basis of the selected three-dimensional color profile, carries out a color conversion from the image data of the photographed image of the photographed three-dimensional photographic subject to a colorimetric value.

Abstract translation: 该照相机系统包括：存储多个三维轮廓的数据库，其中从通过拍摄多个参考色彩三维物体获得的图像数据计算出的转换关系，其中参考比色值被附加在前面， 相应的参考比色值与多个照相照明条件相关联; 选择单元，其基于在拍摄三维摄影对象时的照明条件，选择与所述照明条件对应的三维颜色配置; 以及颜色转换单元，其基于所选择的三维颜色配置文件，从拍摄的三维摄影对象的拍摄图像的图像数据到比色值进行颜色转换。

公开(公告)号：EP2991579A1

公开(公告)日：2016-03-09

申请号：EP14725902.2

申请日：2014-04-24

Applicant: 3M Innovative Properties Company

Inventor： KORTEN, Malte ,  MAYR, Helmar ,  SCHECHNER, Gallus ,  RAIA, Gioacchino

IPC: A61C9/00

CPC classification number: A61C13/082 ,  A61B1/051 ,  A61B1/24 ,  A61C9/0053 ,  A61C13/34 ,  G01J3/508

Abstract: A method of capturing data from a patient's dentition with the steps of positioning a first optical sensor relative to patient's dentition, capturing the shape of a tooth in the patient's dentition, independent from capturing the shape, measuring a color at a location on the tooth, and providing a correlation between the location of the color and a coordinate in the captured shape. The invention helps providing a dental restoration at a relatively high optical, mechanical, and geometric quality.

公开(公告)号：EP2433555A2

公开(公告)日：2012-03-28

申请号：EP11010048.4

申请日：2003-07-24

Applicant: OLYMPUS CORPORATION

Inventor： Komiya, Yasuhiro ,  Wada, Toru ,  Konno, Osamu ,  Ajito, Takeyuki ,  Nakamura, Tomoyuki

IPC: A61B5/00 ,  A61C13/08 ,  G01J3/02 ,  G01J3/10 ,  G01J3/32 ,  G01J3/50 ,  H04N5/225 ,  H04N9/04

CPC classification number: G01J3/32 ,  A61B5/0013 ,  A61B5/0088 ,  A61B5/02 ,  A61C13/0004 ,  A61C13/082 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0224 ,  G01J3/0262 ,  G01J3/0264 ,  G01J3/0272 ,  G01J3/0291 ,  G01J3/10 ,  G01J3/463 ,  G01J3/50 ,  G01J3/501 ,  G01J3/508 ,  G01J3/51 ,  G01J3/513 ,  G01J3/524 ,  G06F19/00 ,  H04N5/2256 ,  H04N9/045 ,  H04N13/15 ,  H04N2209/043 ,  H04N2209/044

Abstract: An image processing system is used for dentistry. Upon creating a false tooth of a patient (59), a plurality of illuminating light of LEDs with different wavelengths emit light and a photographing apparatus (1A) photographs a tooth portion of the patient (59), thereby obtaining image data. The image data is sent to a dentistry filing system (2A) serving as a processing apparatus, and color reproducing data is obtained by calculation. The color reproducing data is sent to a dentistry factory (55) via a public line. Data is searched from a database (56) for calculating a ceramic compounding ratio, compound data of the ceramic false tooth is obtained, matching the color of the tooth portion of the patient (59), and the false tooth approximate to the tooth color of the patient (59) is created.

Abstract translation: 图像处理系统用于牙科。 在产生患者的假牙（59）时，具有不同波长的LED的多个照明光发光，摄影装置（1A）拍摄患者（59）的牙齿部分，从而获得图像数据。 图像数据被发送到用作处理装置的牙科归档系统（2A），并且通过计算获得颜色再现数据。 彩色再现数据通过公共线路发送到牙科工厂（55）。 从用于计算陶瓷配合比的数据库（56）中搜索数据，获得陶瓷假牙的化合物数据，匹配患者（59）的牙齿部分的颜色，以及与牙齿颜色近似的假牙 创建患者（59）。 拍摄装置具有在分光图像拍摄模式和运动图像拍摄模式之间切换的控制单元（18）。