APPARATUS AND METHOD OF TEXTURE MAPPING FOR DENTAL 3D SCANNER

    公开(公告)号:US20180025529A1

    公开(公告)日:2018-01-25

    申请号:US15546396

    申请日:2015-09-11

    Abstract: A method for color texture imaging of teeth with a monochrome sensor array obtains a 3-D mesh representing a surface contour image according to image data from views of the teeth. For each view, recording image data generates sets of at least three monochromatic shading images. Each set of the monochromatic shading images is combined to generate 2-D color shading images, corresponding to one of the views. Each polygonal surface in the mesh is assigned to one of a subset of the views. Polygonal surfaces assigned to the same view are grouped into a texture fragment. Image coordinates for the 3-D mesh surfaces in each texture fragment are determined from projection of vertices onto the view associated with the texture fragment. The 3-D mesh is rendered with texture values in the 2-D color shading images corresponding to each texture fragment to generate a color texture surface contour image.

    Method for automatic calibration of dental furnaces and dental furnace with automatic calibration

    公开(公告)号:US09814550B2

    公开(公告)日:2017-11-14

    申请号:US14136188

    申请日:2013-12-20

    CPC classification number: A61C13/20 F27B17/025 G01J3/508

    Abstract: An embodiment of the invention is a method for automatic calibration of dental furnaces, there is made available a dental furnace comprising a control unit adapted to control the dental furnace for performing a firing process defined by firing process parameters such as e.g. the temperature and/or a temporal temperature curve and/or a temperature gradient and/or a vacuum in a firing chamber of the dental furnace. There is provided at least one calibration firing-object sample made of a dental material, where said dental material, after said calibration firing-object sample has been subjected to a calibration firing-object process with predetermined firing process parameters, has a defined desired color stored e.g. in the control unit. Further, a color measuring device is used which, for transmission of measurement signals and/or measurement results, is operatively connected to the control unit.

    GINGIVAL INDEXING DEVICE AND METHOD FOR INDEXING THE GINGIVA
    77.
    发明申请
    GINGIVAL INDEXING DEVICE AND METHOD FOR INDEXING THE GINGIVA 审中-公开
    GINGIVA INDINGING DEVICE AND METHOD FOR INDINGING GINGIVA

    公开(公告)号:US20170007379A1

    公开(公告)日:2017-01-12

    申请号:US15115378

    申请日:2015-01-28

    Abstract: Gingiva indexing devices and methods with various defined red colour regions have a colour grey card or grey card assigned to it for detecting the gingiva status, in particular for producing a gingival restoration. The devices and method comprise an analysis of at least one region of the gingiva status with regard to its shades of red, the position of the shades of red, the colour profile of the shades of red, their geometry and/or their morphology. The analysis can take place manually and/or digitally, and gingiva information is obtained, in particular in the form of a gingiva map, and optional production of a virtual or real model of a gingival restoration as a reproduction of the missing part of the gums and/or part of gingiva.

    Abstract translation: 具有各种定义的红色区域的牙龈指数装置和方法具有分配给它的彩色灰卡或灰卡,用于检测牙龈状态,特别是用于产生牙龈修复物。 装置和方法包括关于其红色阴影,红色阴影的位置,红色的颜色,其几何形状和/或其形态的牙龈状态的至少一个区域的分析。 分析可以手动和/或数字地进行,并且获得牙龈信息,特别是牙龈图的形式,并且可选地生产牙龈修复物的虚拟或真实模型作为牙龈缺失部分的再现 和/或牙龈的一部分。

    Dental shade mapping
    80.
    发明授权
    Dental shade mapping 有权
    牙科阴影贴图

    公开(公告)号:US08768025B2

    公开(公告)日:2014-07-01

    申请号:US14040776

    申请日:2013-09-30

    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: 一种用于产生牙科物体的颜色映射的方法和装置。 该方法包括根据用于统计学上有效的牙齿取样的一组光谱反射率数据产生变换矩阵。 通过至少第一,第二和第三波长带,一次一个波长带照射朝向牙科物体。 对于成像阵列中的多个像素中的每一个,获得对应于至少第一,第二和第三波长带中的每一个的图像数据值。 应用变换矩阵以通过根据所获得的图像数据值生成一组视觉颜色值以形成颜色映射,并且根据从至少第一,第二的参考对象获得的图像数据值 和第三波长带。 颜色映射可以存储在电子存储器中。

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