公开(公告)号：EP2697970B1

公开(公告)日：2017-12-27

申请号：EP12771778.3

申请日：2012-04-11

申请人： HID Global Corporation

发明人： MUELLER, Horst Arnold ,  MARTIN, Ryan Eric ,  ROWE, Robert K.

IPC分类号： H04N7/18

CPC分类号： G06T7/0073 ,  G06K9/00013 ,  G06K9/00033 ,  G06K9/0012 ,  G06K9/00899 ,  G06K9/2036 ,  G06K9/4661 ,  G06T7/586 ,  G06T2207/10152

摘要： Methods and devices of studying a predefined portion of an object having a feature of interest are disclosed. The feature of interest defines a class of objects that includes the object. Light sources directly illuminate the object from different illumination directions. The light sources are maintained in a stable configuration relative to the object. For each illumination direction, an image is generated from light scattered from the object with a camera maintained in a stable configuration relative to the light sources. A methodology derived from machine learning for the class of objects is applied to filter the generated images are filtered for a characteristic consistent with the feature of interest. Surface gradients are determined from the filtered images and integrated to generate a topography of a surface of the object.

公开(公告)号：EP3055693A1

公开(公告)日：2016-08-17

申请号：EP14852543.9

申请日：2014-10-13

申请人： HID Global Corporation

发明人： ROWE, Robert K. ,  MARTIN, Ryan Eric

IPC分类号： G01N33/52 ,  G01N21/27 ,  G01B7/28 ,  A61B5/117

CPC分类号： G06K9/00033 ,  A61B5/0059 ,  A61B5/1172 ,  A61B5/6891 ,  A61B5/6898 ,  G06K9/00046 ,  G06K2009/0006

摘要： Systems and methods are described for providing reliable biometric access control using an optical biometric sensor in a miniaturized form factor. Some implementations include multiple light sources that can illuminate skin or other tissue at multiple locations during a single measurement session. An imaging array can be arranged to form images of the light exiting the tissue only after undergoing diffuse reflectance in the tissue. Some implementations use the images to perform biometric functions. For example, the images can be used to identify an individual, verify identity of an individual, estimate demographic characteristics of an individual, etc. Such biometric functions can further be used to determine and affect access to secured assets.

摘要翻译： 描述了用于以小型化形式使用光学生物测定传感器提供可靠的生物特征访问控制的系统和方法。 一些实施方案包括可以在单个测量会话期间在多个位置照亮皮肤或其他组织的多个光源。 成像阵列可以被布置成仅在组织中经历漫反射之后形成离开组织的光的图像。 一些实现使用图像来执行生物特征函数。 例如，图像可以用于识别个体，验证个体的身份，估计个体的人口特征等。这样的生物特征函数可以进一步用于确定和影响对受保护资产的访问。