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    VIRTUAL MAPPING OF FINGERPRINTS FROM 3D TO 2D
    2.
    发明申请
    VIRTUAL MAPPING OF FINGERPRINTS FROM 3D TO 2D 审中-公开
    指纹从3D到2D的虚拟映射

    公开(公告)号：WO2016144674A1

    公开(公告)日：2016-09-15

    申请号：PCT/US2016/020592

    申请日：2016-03-03

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： SIVALINGAM, Ravishankar ,  CASNER, Glenn E. ,  KAHL, Jonathan T. ,  SABELLI, Anthony J. ,  SCOTT, Shannon D. ,  SHANNON, Robert W.

    IPC: G06K9/00

    CPC classification number: G06T15/10 ,  G06K9/00006 ,  G06K9/00013 ,  G06K9/00073 ,  G06K9/0008 ,  G06K9/00093 ,  G06K9/001 ,  G06K9/2054 ,  G06T17/20

    Abstract: A non-parametric computer implemented system and method for creating a two dimensional interpretation of a three dimensional biometric representation. The method comprises: obtaining with a camera a three dimensional (3D) representation of a biological feature; determining a region of interest in the 3D representation; selecting an invariant property for the 3D region of interest; identifying a plurality of minutiae in the 3D representation; mapping a nodal mesh to the plurality of minutiae; projecting the nodal mesh of the 3D representation onto a 2D plane; and mapping the plurality of minutiae onto the 2D representation of the nodal mesh. The 2D representation of the plurality of minutiae has a property corresponding to the invariant property in the 3D representation; and the value of the corresponding property in the 2D projection matches the invariant property in the 3D representation.

    Abstract translation: 用于创建三维生物特征表示的二维解释的非参数计算机实现的系统和方法。 该方法包括：用相机获得生物特征的三维（3D）表示; 确定3D表示中的感兴趣区域; 为感兴趣的3D区域选择不变属性; 识别3D表示中的多个细节; 将节点网格映射到多个细节; 将3D表示的节点网格投影到2D平面上; 并将多个细节映射到节点网格的2D表示上。 多个细节的2D表示具有对应于3D表示中的不变属性的属性; 并且2D投影中相应属性的值与3D表示中的不变属性匹配。

    THREE-DIMENSIONAL (3D) TEST STANDARD
    3.
    发明申请
    THREE-DIMENSIONAL (3D) TEST STANDARD 审中-公开
    三维（3D）测试标准

    公开(公告)号：WO2016109247A1

    公开(公告)日：2016-07-07

    申请号：PCT/US2015/066599

    申请日：2015-12-18

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： SABELLI, Anthony J. ,  CASNER, Glenn E. ,  DINGELDEIN, Joseph C. ,  SCOTT, Shannon D.

    IPC: G01B21/04 ,  G01B3/30

    CPC classification number: G01B21/042 ,  G01B3/30 ,  G01B21/20

    Abstract: Three-dimensional test objects provide for assessment of a 3D scanner over a range of scales, frequencies, and/or depths. The test objects may include a substrate having a substantially planar top surface and a plurality of surface features. In some examples, the surface features include a plurality of wedges projecting above the plane of the top surface and extending radially outward from an origin to form a three dimensional star pattern. The shape of the surface features may be periodic or non-periodic. In other examples, the depth of the surface features is decoupled from their lateral frequency.

    Abstract translation: 三维测试对象提供了一系列尺度，频率和/或深度上的3D扫描仪的评估。 测试对象可以包括具有基本平坦的顶表面和多个表面特征的基底。 在一些示例中，表面特征包括突出在顶表面的平面上方并从原点径向向外延伸以形成三维星形图案的多个楔形物。 表面特征的形状可以是周期性的或非周期性的。 在其他示例中，表面特征的深度与其横向频率分离。

    NON-CONTACT FRICTION RIDGE CAPTURE DEVICE
    5.
    发明申请
    NON-CONTACT FRICTION RIDGE CAPTURE DEVICE 审中-公开
    非接触式摩擦力检测装置

    公开(公告)号：WO2017044343A1

    公开(公告)日：2017-03-16

    申请号：PCT/US2016/049369

    申请日：2016-08-30

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： BADZINSKI, David J. ,  BROTT, Robert L. ,  DOMEK, Alexander ,  DUNN, Douglas S. ,  GRANDRUD, Jonathan D. ,  LORENTZ, Robert D. ,  MEIS, Michael A. ,  MEYER, Theresa ,  SABELLI, Anthony J. ,  SCOTT, Shannon D. ,  SHAMLA, Blake R. ,  SHANNON, Robert W. ,  WHEATLEY, John A. ,  CASNER, Glenn E. ,  HOWELL, Brett A.

    IPC: G06K9/00 ,  H04N7/18 ,  G06F3/033

    CPC classification number: H04N7/188 ,  G06K9/00033 ,  G06K9/2018

    Abstract: A non-contact friction ridge capture device is described. The device comprises a device housing, the device housing including an electronics compartment and an illumination shield, with an opening between the electronics compartment and the illumination shield into which a user can insert the user's hand. The device further comprising a camera disposed in the electronics compartment for capturing an image of at least one friction ridge surface on a user's hand. The device further comprises a light source disposed in the electronics compartment, the light source emitting light in the direction of the illumination shield, wherein the peak wavelength of emitted light is in the range of 440 to 570 nanometers (nm). The user's hand is not required to contact the device when the camera captures the image of at least one friction ridge surface on a user's hand.

    Abstract translation: 描述了非接触摩擦脊捕获装置。 该装置包括装置壳体，该装置壳体包括电子室和照明屏蔽件，在电子室和照明屏蔽之间具有开口，使用者可以插入使用者的手。 该装置还包括设置在电子机舱中的摄像机，用于捕获使用者的手上的至少一个摩擦脊表面的图像。 该装置还包括设置在电子室中的光源，光源沿照明屏蔽的方向发射光，其中发射光的峰值波长在440至570纳米（nm）的范围内。 当照相机拍摄用户手上的至少一个摩擦脊表面的图像时，用户的手不需要接触设备。

    DETECTING TOOTH WEAR USING INTRA-ORAL 3D SCANS
    7.
    发明申请
    DETECTING TOOTH WEAR USING INTRA-ORAL 3D SCANS 审中-公开
    检测牙齿使用内窥镜3D扫描

    公开(公告)号：WO2016003787A1

    公开(公告)日：2016-01-07

    申请号：PCT/US2015/037868

    申请日：2015-06-26

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： SOMASUNDARAM, Guruprasad ,  RIBNICK, Evan J. ,  SIVALINGAM, Ravishankar ,  EID, Aya ,  MEYER, Theresa M. ,  GOLNARI, Golshan ,  SABELLI, Anthony J.

    IPC: A61B5/00 ,  A61B1/24 ,  A61C19/04

    CPC classification number: G06T7/0016 ,  A61B5/0088 ,  A61B5/4547 ,  A61C7/002 ,  A61C9/0053 ,  A61C19/04 ,  G06F17/50 ,  G06T7/11 ,  G06T13/20 ,  G06T15/08 ,  G06T19/20 ,  G06T2200/04 ,  G06T2207/30036 ,  G06T2210/41

    Abstract: A method for detecting tooth wear using digital 3D models of teeth taken at different times. The digital 3D models of teeth are segmented to identify individual teeth within the digital 3D model. The segmentation includes performing a first segmentation method that over segments at least some of the teeth within the model and a second segmentation method that classifies points within the model as being either on an interior of a tooth or on a boundary between teeth. The results of the first and second segmentation methods are combined to generate segmented digital 3D models. The segmented digital 3D models of teeth are compared to detect tooth wear by determining differences between the segmented models, where the differences relate to the same tooth to detect wear on the tooth over time.

    Abstract translation: 使用在不同时间拍摄的牙齿的数字3D模型来检测牙齿磨损的方法。 牙齿的数字3D模型被分割以识别数字3D模型内的各个牙齿。 所述分割包括执行第一分割方法，所述第一分割方法在所述模型内部至少部分所述牙齿上划分，以及第二分割方法，其将所述模型内的点分类为在牙齿的内部或在牙齿之间的边界上。 第一和第二分割方法的结果被组合以产生分段数字3D模型。 通过确定分段模型之间的差异来比较牙齿的分段数字3D模型以检测牙齿磨损，其中差异涉及相同的牙齿以检测牙齿上的磨损随时间的变化。

    THREE-DIMENSIONAL (3D) TEST STANDARD
    9.
    发明公开
    THREE-DIMENSIONAL (3D) TEST STANDARD 审中-公开
    三维（3D）测试标准

    公开(公告)号：EP3240995A1

    公开(公告)日：2017-11-08

    申请号：EP15823463.3

    申请日：2015-12-18

    Applicant: 3M Innovative Properties Company

    Inventor： SABELLI, Anthony J. ,  CASNER, Glenn E. ,  DINGELDEIN,Joseph C. ,  SCOTT, Shannon D.

    IPC: G01B21/04 ,  G01B3/30

    CPC classification number: G01B21/042 ,  G01B3/30 ,  G01B21/20

    Abstract: Three-dimensional test objects provide for assessment of a 3D scanner over a range of scales, frequencies, and/or depths. The test objects may include a substrate having a substantially planar top surface and a plurality of surface features. In some examples, the surface features include a plurality of wedges projecting above the plane of the top surface and extending radially outward from an origin to form a three dimensional star pattern. The shape of the surface features may be periodic or non-periodic. In other examples, the depth of the surface features is decoupled from their lateral frequency.

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