公开(公告)号：WO2018204639A1

公开(公告)日：2018-11-08

申请号：PCT/US2018/030884

申请日：2018-05-03

Applicant: X-RITE SWITZERLAND GMBH

Inventor： DAUGA, Christophe ,  NETTER, Thomas ,  VOGH, James, William ,  EHBETS, Peter

IPC: G01J3/02 ,  G01J3/50 ,  G01J3/46 ,  G01J3/52 ,  G01J3/10

Abstract: A mobile device for measuring reflectance properties of a surface includes a first imaging device comprising an image sensor and a lens characterized by an optical axis; a first illumination source having an optical axis disposed at an angle of 45° with respect to the first imaging device lens' optical axis; a second imaging device comprising an image sensor and a lens characterized by an optical axis; and a second illumination source having an optical axis intersecting the first imaging device lens' optical axis where the first illumination source intersects the first imaging device lens' optical axis, the optical axes of the first imaging device and the second illumination source defining a second measurement plane. The mobile device further comprises a computer processor and a non-volatile memory comprising computer- readable instructions to acquire data from the first and second imaging devices and derive reflectance information of the surface of interest.

公开(公告)号：WO2018041727A1

公开(公告)日：2018-03-08

申请号：PCT/EP2017/071395

申请日：2017-08-25

Applicant: X-RITE SWITZERLAND GMBH

Inventor： KETTLER, Wilhelm H. ,  ŠORMAZ, Miloš ,  EHBETS, Peter

IPC: G01J3/50 ,  G01J3/46

CPC classification number: G01J3/463 ,  G01J3/504

Abstract: A computer-implemented method for identifying an effect pigment, the method comprising executing, on at least one processor of at least one computer, steps of: a) acquiring sample image data describing a digital image of a layer comprising a sample effect pigment b) determining, based on the sample image data, sparkle point data describing a sample distribution of sparkle points defined by the digital image, wherein the sample distribution is defined in an N-dimensional color space, wherein N is an integer value equal to or larger than 3; c) determining, based on the sparkle point data, sparkle point transformation data describing a transformation of the sample distribution into an (N-1)-dimensional color space; d) determining, based on the sparkle point transformation data, sparkle point distribution geometry data describing a geometry of the sample distribution; e) acquiring reference distribution geometry data describing a geometry of a reference distribution of sparkle points in the (N-1)-dimensional color space; f) acquiring reference distribution association data describing an association between the reference distribution and an identifier of the reference distribution; g) determining, based on the sparkle point distribution geometry data and the reference distribution geometry data and the reference distribution association data, sample pigment identity data describing an identity of the sample effect pigment.

Abstract translation: 一种用于识别效果颜料的计算机实现的方法，所述方法包括在至少一个计算机的至少一个处理器上执行以下步骤：a）获取描述图像的数字图像的采样图像数据， b）基于所述样本图像数据确定描述由所述数字图像定义的闪烁点的样本分布的闪光点数据，其中所述样本分布在N维色彩空间中定义，其中N是 等于或大于3的整数值; c）基于闪点数据确定描述样本分布向（N-1）维颜色空间的变换的闪烁点变换数据; d）基于闪点变换数据确定描述样本分布的几何形状的闪光点分布几何数据; e）获取描述（N-1）维颜色空间中闪烁点的参考分布的几何结构的参考分布几何数据; f）获取描述参考分布与参考分布的标识符之间的关联的参考分布关联数据; g）基于闪点分布几何数据和参考分布几何数据以及参考分布关联数据，确定描述样品效应颜料的身份的样品颜料身份数据。