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    Method of determining a colour of a segment for a position in a set of teeth
    41.
    发明公开
    Method of determining a colour of a segment for a position in a set of teeth 审中-公开
    Verfahren zur Farbbestimmung eines Seine在einem Gebiss的位置

    公开(公告)号：EP1378735A1

    公开(公告)日：2004-01-07

    申请号：EP02077661.3

    申请日：2002-07-03

    Applicant: Universiteit van Amsterdam

    Inventor： Feilzer, Albert Joseph ,  Kleverlaan, Cornelis Johannes ,  Dozic, Alma

    IPC: G01J3/46

    CPC classification number: G01J3/528 ,  G01J3/463 ,  G01J3/508 ,  G01J3/524

    Abstract: Method for determining a desired colour of a first segment for forming a portion of a set of teeth on a desired position within the set of teeth, wherein the method comprises:

    determining the colour of at least a second segment within the set of teeth,
    characterised in that, the method further comprises:

    determining the position of the at least second segment within the set of teeth; and
    determining the colour of the first segment according to a predetermined relationship between the colour and the position of the at least second segment and the desired position for the first segment.

    Abstract translation: 用于确定第一段的期望颜色的方法，用于形成所述齿组内的期望位置上的一组齿的一部分的部分，其中所述方法包括：确定所述齿组内的至少第二段的颜色，其特征在于 因为该方法还包括：确定该组齿内的该至少第二段的位置; 以及根据颜色和至少第二片段的位置与第一片段的期望位置之间的预定关系来确定第一片段的颜色。

    AUTOMATED TOOTH SHADE ANALYSIS AND MATCHING SYSTEM
    43.
    发明公开
    AUTOMATED TOOTH SHADE ANALYSIS AND MATCHING SYSTEM 审中-公开
    自动化系统和比较ZAHNVERFÄRBUNGSANALYSE-

    公开(公告)号：EP1076531A1

    公开(公告)日：2001-02-21

    申请号：EP99921701.1

    申请日：1999-05-05

    Applicant: Dentech, LLC

    Inventor： MORRIS, Alan, C. ,  MABRITO, Craig, A. ,  ROBERTS, Matthew, R.

    IPC: A61C13/08

    CPC classification number: G01J3/50 ,  A61C19/10 ,  G01J3/02 ,  G01J3/0264 ,  G01J3/463 ,  G01J3/508 ,  G01J3/524

    Abstract: A patient's dental prosthesis (e.g., a prosthesis tooth, crown, veneer, or bridge) is made by acquiring an image (42) of the patient's teeth that contains black (54) and white (58) normalization references. These references are black, and white porcelain, for example, that allow software of the invention to determine absolute black and absolute white within the image. The image is then normalized in accordance with normalization references, which corrects the image for variations in lighting conditions and image source. The normalized image (60) is then standardized by matching the pixels of the normalized image (60) to selected shade standards (62). The dental prosthesis can then be manufactured by a lab technician by referring to the standardized image (66). The tooth shade analysis, and matching system is also applicable to direct restorations of natural teeth, such as repair of chipped or broken teeth.

    APPARATUS AND METHOD FOR MEASURING OPTICAL CHARACTERISTICS OF AN OBJECT
    44.
    发明公开
    APPARATUS AND METHOD FOR MEASURING OPTICAL CHARACTERISTICS OF AN OBJECT 失效
    VORRICHTUNG UND VERFAHREN ZUM MESSEN DER OPTISCHEN EIGENSHAFTEN EINES OBJEKTES

    公开(公告)号：EP0909376A4

    公开(公告)日：2000-08-09

    申请号：EP97901920

    申请日：1997-01-02

    Applicant: LJ LAB LLC

    Inventor： JUNG WAYNE D ,  JUNG RUSSEL W ,  LOUDERMILK ALAN R

    IPC: A61B1/00 ,  A61B1/24 ,  A61C19/10 ,  G01J3/02 ,  G01J3/04 ,  G01J3/10 ,  G01J3/46 ,  G01J3/50 ,  G01J3/51 ,  G01N21/27 ,  G01N21/47 ,  G01N21/57 ,  G01N21/25 ,  G01N21/64

    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.

    Abstract translation: 公开了彩色测量系统和方法。 周边接收机光纤与中心光纤光纤间隔开，并接收从被测物体的表面反射的光。 来自周边光纤的光通过各种滤光片。 该系统利用周边接收机光纤来确定关于探头相对于被测量物体的高度和角度的信息。 在处理器控制下，可以以预定的高度和角度进行颜色测量。 公开了各种颜色光谱光度计布置。 也可以获得半透明度，荧光和/或表面纹理数据。 可以提供音频反馈以指导操作者使用系统。 探头可能具有可移除或屏蔽的尖端，以防止污染。

    EP0964657A4 -
    45.
    发明公开
    EP0964657A4 - 失效
    EP0964657A4 - Google专利

    公开(公告)号：EP0964657A4

    公开(公告)日：1999-12-22

    申请号：EP97944583

    申请日：1997-09-26

    IPC: A61C19/10 ,  G01J3/50

    CPC classification number: G01J3/50 ,  A61C19/10 ,  G01J3/463 ,  G01J3/508

    Abstract: A method and system for determining the color characteristic of a tooth (13), particularly in a mouth (15) in which restorative dentistry is contemplated, employs the photographic imaging (22) of the tooth of the patient, and the photographing of visually selected color standards (10, 11), to achieve the final selection of the closest color match. The resulting photographic images, which may be on a single photograph, are subjected to colorimetric or spectrophotometric analysis to achieve the final selection of the closest match. The system avoids the need to rely upon the visual color acuity of the practitioner in order to achieve a close color match for a prosthetic device. Additionally, the method and system of the invention avoid the problems associated with color shifts associated with photography, when such is used alone as the indicator of tooth color.

    Abstract translation: 用于确定牙齿（13）的颜色特征的方法和系统，特别是在考虑修复性牙科学的口腔（15）中，采用患者牙齿的照相成像（22）以及视觉选择的照相 颜色标准（10,11），以实现最接近的颜色匹配的最终选择。 可以在单张照片​​上得到的照片图像经受比色或分光光度分析以实现最接近匹配的最终选择。 该系统避免了需要依靠从业者的视觉颜色敏锐度以实现假体装置的接近颜色匹配。 另外，本发明的方法和系统避免了与单独用作牙齿颜色指示器时与摄影相关的色移有关的问题。

    Dental colour mixture indicator device
    48.
    发明公开
    Dental colour mixture indicator device 失效
    Anzeigeeinrichtung einer Mischung vonzahnärztlichenFarben。

    公开(公告)号：EP0591958A1

    公开(公告)日：1994-04-13

    申请号：EP93116194.7

    申请日：1993-10-06

    Applicant: Hall, Neil Rex

    Inventor： Hall, Neil Rex

    IPC: A61C19/10 ,  G01J3/52 ,  G01N21/29

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

    Abstract: A dental colour mixture indicator device is described.
    In an embodiment, the dental colour mixture indicator device (420) comprises four component indicator devices (400-403) each retained by a common base (410). Each component indicator device (400-403) has an array of colour samples (Y1-2, C1-3, R1-2) mounted to individual blades (430, 440-442, 450-452, 460-462), with each group of blades able to be plucked from the base (410) for the purposes of a comparison with a tooth. Each colour sample (Y1-2, C1-3, R1-2) corresponds with an artificial tooth material, and, on the basis of the comparison, a mixture of the respective tooth materials allows correct colour matching of a restorative tooth.
    The arrayed colour samples (Y1-2, C1-3, R1-2), coincide with a corresponding location on a colour co-ordinate system. The central colours (201) of each component indicator device (400-403) are offset from other ones of central colours with respect to the colour co-ordinate system. This means a fewer number of samples are required than in the prior art to encompass the whole body of tooth colour.

    Abstract translation: 描述牙科混合指示器装置。 在一个实施例中，牙科颜色混合指示器装置（420）包括每个由公共基座（410）保持的四个部件指示器装置（400-403）。 每个部件指示器装置（400-403）具有安装到各个刀片（430,440-442,450-452,460-462）的颜色样本阵列（Y1-2，C1-3，R1-2），每个 用于与牙齿比较的目的的一组叶片能够从基部（410）拔出。 每个颜色样品（Y1-2，C1-3，R1-2）对应于人造牙齿材料，并且在比较的基础上，各个牙齿材料的混合物允许矫正牙齿的正确的颜色匹配。 排列的颜色样本（Y1-2，C1-3，R1-2）与颜色坐标系上的相应位置重合。 每个部件指示装置（400-403）的中心颜色（201）相对于颜色坐标系偏离中心颜色的其他颜色。 这意味着需要比现有技术更少的样品以包含整个牙齿的颜色。

    COMPUTERISED COLOUR MATCHING
    49.
    发明公开
    COMPUTERISED COLOUR MATCHING 失效
    电脑彩色匹配

    公开(公告)号：EP0437439A4

    公开(公告)日：1991-08-14

    申请号：EP89908142

    申请日：1989-07-14

    Applicant: GARIBALDI PTY. LTD.

    Inventor： GRAHAM, MARTIN, ALAN, SCOTT ,  CARTWRIGHT, IAIN

    IPC: A61C19/10 ,  B44D3/00 ,  G01J3/46 ,  G03B15/02 ,  G03B15/03 ,  G03B15/06

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

    Abstract: A method of computerised colour matching for articles where articles are photographed, using a still video camera, against a set of reference colours. The photographs are stored on a diskette (34) which is read on a recorder (54). The compouter (55) compares the set of reference colours against an absolute set of colours and generates a compensation factor which is applied to the photographed colours to produce a corrected photograph. Areas of the corrected photograph may be selected for computer enhancement and a computer generated map may be produced to enable the colour of other articles to be matched to the photographed articles.

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