Tooth shade analyzer system and methods
    61.
    发明授权
    Tooth shade analyzer system and methods 有权
    牙垢分析仪系统及方法

    公开(公告)号:US6132210A

    公开(公告)日:2000-10-17

    申请号:US385615

    申请日:1999-08-30

    Inventor: Maryann Lehmann

    Abstract: A tooth shade analyzing system and method of use. The system includes a digital camera which connects to a shade analyzer subsystem, e.g., a digital video processor, and a color display monitor. The camera captures a digital color image of the patient's tooth and the subsystem compares that image to a stored plurality of tooth shades. Each tooth shade is represented in a block of data, including color image data, a tooth shade digital word, and a manufacturer type. The patient's tooth image includes an RGB chromaticity representation that is scanned and compared with the several tooth shades stored in memory, and a match is determined and communicated to a user of the system. The method of use includes the specification of fractional tooth shades, if needed, corresponding to a plurality of porcelain films for manufacturing a reconstructed tooth.

    Abstract translation: 牙齿分析系统及使用方法。 该系统包括连接到阴影分析器子系统的数字照相机,例如数字视频处理器和彩色显示监视器。 照相机拍摄患者牙齿的数字彩色图像,并且子系统将该图像与存储的多个牙齿阴影进行比较。 每个牙齿色调在数据块中表示,包括彩色图像数据,牙齿数字字和制造商类型。 患者的牙齿图像包括被扫描的RGB色度表示,并与存储在存储器中的几个牙齿遮蔽物进行比较,并且确定匹配并将其传达给系统的用户。 使用的方法包括如果需要,对应于用于制造重建牙齿的多个瓷膜的分数牙齿的规格。

    Tooth shade analyzer system and methods

    公开(公告)号:US5766006A

    公开(公告)日:1998-06-16

    申请号:US494979

    申请日:1995-06-26

    Abstract: An intraoral camera connects to a shade analyzer subsystem, e.g., a digital video processor, and a color display monitor. The camera captures a digital color image of the patient's tooth and the subsystem compares that image to a stored plurality of tooth shades. Each tooth shade is represented in a block of data, including color image data, a tooth shade digital word, and a manufacturer type. The patient's tooth image includes an RGB chromaticity representation that is scanned and compared with the several tooth shades stored in memory, and a match is determined and communicated to a user of the system. The methodology includes the specification of fractional tooth shades, if needed, corresponding to a plurality of porcelain films for manufacturing a reconstructed tooth.

    Dental color mixture indicator device
    64.
    发明授权
    Dental color mixture indicator device 失效
    牙科混色指示器

    公开(公告)号:US5498157A

    公开(公告)日:1996-03-12

    申请号:US127265

    申请日:1993-09-24

    Applicant: Neil R. Hall

    Inventor: Neil R. Hall

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

    Abstract: A dental color mixture indicator device is described.In an embodiment, the dental color 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 color 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 color 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 color matching of a restorative tooth.The arrayed color samples (Y1-2,C1-3,R1-2), coincide with a corresponding location on a color co-ordinate system. The central colors (201) of each component indicator device (400-403) are offset from other ones of central colors with respect to the color co-ordinate system. This means a fewer number of samples are required than in the prior art to encompass the whole body of tooth color.

    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),每组刀片能够 为了与牙齿进行比较,从基座(410)拔出。 每个颜色样本(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。 每个部件指示器装置(400-403)的中心颜色(201)相对于颜色坐标系从其它中心颜色偏移。 这意味着比现有技术中需要更少数量的样品以包含整个牙齿的颜色。

    Computerized color matching
    65.
    发明授权
    Computerized color matching 失效
    电脑配色

    公开(公告)号:US5177694A

    公开(公告)日:1993-01-05

    申请号:US684905

    申请日:1991-04-30

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

    Abstract: A method of computerized color matching for articles where articles are photographed, using a still video camera, against a set of reference colors. The photographs are stored on a diskette (34) which is read on a recorder (54). The computer (55) compares the set of reference colors against an absolute set of colors and generates a compensation factor which is applied to the photographed colors 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 color of other articles to be matched to the photographed articles.

    Abstract translation: PCT No.PCT / AU89 / 00297 Sec。 371日期:1991年4月30日 102(e)日期1991年4月30日PCT提交1989年7月14日PCT公布。 出版物WO90 / 00733 日期1990年1月25日。一种使用静态摄像机拍摄物品的物品的计算机化颜色匹配方法,针对一组参考颜色。 照片存储在在记录器(54)上读取的软盘(34)上。 计算机(55)将一组参考颜色与绝对颜色组进行比较,并产生应用于所拍摄的颜色的补偿因子以产生校正后的照片。 可以选择校正照片的区域用于计算机增强,并且可以产生计算机生成的地图,以使其他物品的颜色与拍摄的物品匹配。

    Methods for determining the proper coloring for a tooth replica
    66.
    发明授权
    Methods for determining the proper coloring for a tooth replica 失效
    确定牙齿复制品适当着色的方法

    公开(公告)号:US4654794A

    公开(公告)日:1987-03-31

    申请号:US580864

    申请日:1984-02-18

    Inventor: John K. O'Brien

    Abstract: Polychromatic light is directed at the surface of a live tooth and color data of light reflected therefrom is recorded, multiplied by the stored power distribution of a first standard illuminant and converted to three tristimulus values. Such values are compared with color values of a first group of stored color dental shades, and if a match occurs within a given tolerance, an indication of the nature of the recipe is produced. A second level search may be carried out against a substantially larger group of stored dental shades in the event of a no-match condition resulting from the first search. Excellent lifelike reproduction of the patient's tooth is enhanced by checking for least metamerism by operating upon the measured data with other illumination standards and selecting the best match under all lighting conditions. Additionally, a translucency factor is calculated, and employed to reduce the opacity of the inner opaque layer of the recipe which would otherwise be indicated should the patient's tooth not have a high degree of translucency. The calculation of a fluorescence factor also enhances excellent reproduction of the live tooth, and is employed to indicate the addition of a fluorescent ingredient to the final recipe.

    Abstract translation: 多色光指向活牙的表面,并记录从其反射的光的颜色数据乘以第一标准光源的存储功率分布并转换为三个三刺激值。 将这些值与存储的彩色牙科阴影的第一组的颜色值进行比较,并且如果在给定的公差内发生匹配,则产生配方的性质的指示。 在第一次搜索产生的不匹配条件的情况下,可以针对大量存储的牙科阴影进行第二级搜索。 通过使用其他照明标准操作测量数据并在所有照明条件下选择最佳匹配来检查患者牙齿的极好的逼真的再现。 另外,计算半透明因子,并且用于减少食谱的内不透明层的不透明度,否则如果患者的牙齿不具有高度的半透明度,则不透明度。 荧光因子的计算也提高了活牙的优异繁殖,并且用于指示在最终配方中添加荧光成分。

    Method of and apparatus for optically detecting anomalous subsurface
structure in translucent articles
    67.
    发明授权
    Method of and apparatus for optically detecting anomalous subsurface structure in translucent articles 失效
    用于光学检测半透明物品中的异常地下结构的方法和装置

    公开(公告)号:US4184175A

    公开(公告)日:1980-01-15

    申请号:US767008

    申请日:1977-02-09

    Abstract: A nondestructive method of and apparatus for optically detecting the presence of and inferentially determining the relative degree of anomalous subsurface structure in translucent articles: for instance, such anomalous subsurface structural phenomena as pre-carious lesions in in vivo teeth. Moreover, dynamic changes in the degree of such anomalous subsurface structure can be identified and relatively quantified. Thus, for instance, progressive subsurface deterioration of teeth can be monitored, and the efficacy of products directed towards arresting or reversing the development of pre-carious lesions in teeth can be evaluated through the use of the present invention. The method and apparatus of the present invention provide for illuminating a surface area of a translucent article with incident light, and detecting whether a sufficient portion of the light is internally diverted by being refracted or diffusely reflected or the like by the internal structure of the article to indicate whether the subsurface structure of the article is anomalous. Both in vivo and in vitro apparatuses are disclosed. Several species of hand-held probes for such applications as dental examinations are also disclosed. Manipulation of the hand-held probes is facilitated by flexible fiber optic cables. The apparatus may include closed circuit video and automatic data processing equipment to facilitate the use of the apparatus, and to facilitate the reduction and interpretation of the data derived from operating the apparatus. As used herein, the term light is not intended to be limited to the visible spectrum.

    Abstract translation: 用于光学检测半透明制品中的异常地下结构的相对程度的存在并在其中确定的非破坏性方法和装置:例如,体内牙齿中的前龋损伤之类的异常地下结构现象。 此外,这种异常地下结构的程度的动态变化可以被确定并相对量化。 因此,例如,可以监测牙齿的进行性地下退化,并且可以通过使用本发明来评估用于阻止或逆转牙齿中前龋损伤发展的产品的功效。 本发明的方法和装置提供了用入射光照射半透明物品的表面区域,并且通过物品的内部结构检测足够部分的光是否被内部转移而被折射或漫反射等 以表明该物品的地下结构是否是异常的。 公开了体内和体外装置。 还公开了用于诸如牙科检查的应用的几种手持式探针。 灵活的光纤电缆便于手持式探头的操纵。 该装置可以包括闭路视频和自动数据处理设备以便于使用该装置,并且有助于减少和解释从操作该装置得到的数据。 如本文所用,术语光不旨在限于可见光谱。

    Method and device for providing ingredient data for a prosthesis

    公开(公告)号:US12097083B2

    公开(公告)日:2024-09-24

    申请号:US17432735

    申请日:2020-02-28

    Abstract: A method is provided for providing a set of ingredients for manufacturing of a dental prosthesis covering. The method comprises receiving a background colour value providing information on a colour of a background substrate on which the prosthesis is to be provided, receiving an appearance colour value providing information on an appearance colour of the prosthesis and receiving a thickness value providing information on a thickness of the dental prosthesis covering. In an electronic memory, a first ingredient record is looked up comprising first ingredient value, based on the measured background value and the measured appearance colour value. The first ingredient values are adjusted in an electronic processor adjusted based on the thickness value and through electronic output means, the adjusted ingredient data is provided. By adjusting ingredients for thickness, a more natural appearance may be achieved.

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