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公开(公告)号：US20190279400A1
公开(公告)日：2019-09-12
申请号：US15915815
申请日：2018-03-08
Applicant: Datacolor Inc.
Inventor： Zhiling Xu
Abstract: A method is provided for identifying colors across illuminants using a processor configured by code executing therein, the method comprising capturing a sample image with an image recording device, the image including pixels resenting a color sample under analysis and a color reference chart. The processor is also configured to execute comparing the color values of pixels representing the color reference chart of the sample image to the pixel values corresponding to a plurality of entries within a plurality of color reference datasets to determine the color reference having the closest match of sample captured in the image. The reference identifier of the color that is the closest match to the sample is then output for further use.
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公开(公告)号：US20190279023A1
公开(公告)日：2019-09-12
申请号：US16421060
申请日：2019-05-23
Applicant: DATACOLOR INC.
Inventor： Zhiling Xu
Abstract: Various embodiments of the systems and methods described herein are directed towards training an artificial neural network to identify color values of a sample by providing image data obtained through multiple image capture devices under a plurality of lighting conditions. The present invention also includes using a pre-trained neural network to identify the color values of a sample having an unknown color value by capturing an image of an unknown color sample and known color reference samples under any illumination or hardware configuration.
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公开(公告)号：US20140129179A1
公开(公告)日：2014-05-08
申请号：US14075722
申请日：2013-11-08
Applicant: Datacolor, Inc.
Inventor： Zhiling Xu , Michael H. Brill
IPC: G01N21/57
CPC classification number: G01N21/57
Abstract: The present invention is directed to an apparatus and method for determining a set of gloss measurement values of a sample to be measured. The invention includes a plurality of light sources having a light output, the plurality of sources configured to project light in the direction of a single sample having a gloss characteristic to be measured, wherein the planes of incidence of the light sources are arrayed at different azimuthal angles about the perpendicular direction of the sample. Furthermore, the invention includes a plurality gloss-sensitive sensors, each positioned at 180 degrees of azimuthal angle from the plurality of light sources so as to receive light reflected off a sample and output a plurality of measured gloss sample channel values and a processor configured to compare the outputs of the plurality of sample channel values and generate a plurality of angle-indexed gloss measurement values.
Abstract translation: 本发明涉及一种用于确定要测量的样品的一组光泽度测量值的装置和方法。 本发明包括具有光输出的多个光源，所述多个光源被配置为沿着具有待测量的光泽特性的单个样品的方向投射光，其中光源的入射面排列在不同的方位角 围绕样品的垂直方向的角度。 此外，本发明包括多个光泽敏感传感器，每个光敏感应传感器分别位于与多个光源成180度的方位角，从而接收从样本反射的光并输出多个测量的光泽采样通道值，以及处理器， 比较多个采样通道值的输出并产生多个角度指标的光泽度测量值。
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公开(公告)号：US11892351B2
公开(公告)日：2024-02-06
申请号：US17855133
申请日：2022-06-30
Applicant: DATACOLOR INC.
Inventor： Zhiling Xu , William Bishop
CPC classification number: G01J3/28 , G01J3/0297
Abstract: In the disclosure provided herein, the described apparatus, systems and methods are directed to compensation of errors caused by the difference between the specular port and the sphere in a sphere-based color-measurement instrument, and improvement of the performance of the instrument. In one or more implementations, described approaches eliminate the need for hardware replacement, and therefore reduce costs associated with the operation of color measurement instruments.
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公开(公告)号：US20240003742A1
公开(公告)日：2024-01-04
申请号：US17855133
申请日：2022-06-30
Applicant: DATACOLOR INC.
Inventor： Zhiling Xu , William Bishop
CPC classification number: G01J3/28 , G01J3/0297
Abstract: In the disclosure provided herein, the described apparatus, systems and methods are directed to compensation of errors caused by the difference between the specular port and the sphere in a sphere-based color-measurement instrument, and improvement of the performance of the instrument. In one or more implementations, described approaches eliminate the need for hardware replacement, and therefore reduce costs associated with the operation of color measurement instruments.
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Patent Agency Ranking
公开(公告)号：US20220099564A1
公开(公告)日：2022-03-31
申请号：US17034873
申请日：2020-09-28
Applicant: DATACOLOR INC.
Inventor： Zhiling Xu
Abstract: A method has been developed to improve the stability of a color measurement system that measures reflectances using matrix-transformation method. The transformation matrix can be obtained by training with a raw measurement matrix and a master reflectance matrix. The raw measurement matrix can be stacked with one or more of its variations, with each variation being some random noise added onto a part or the whole original raw signal matrix. The same number of master reflectance matrices are also stacked to match the size and sample ordering of the raw measurement matrix. The resulting transformation matrix will be more stable and less sensitive to the measurement noise.
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公开(公告)号：US11112312B2
公开(公告)日：2021-09-07
申请号：US16451958
申请日：2019-06-25
Applicant: Datacolor, Inc.
Inventor： Nilesh B. Dhote , Taeyoung Park
Abstract: A method includes determining a fielded color measurement instrument is not calibrated to measure light emitted by a fielded light emitting device, assembling a calibration matrix, such that a product of the calibration matrix multiplied by a response of the fielded color measurement instrument to the light emitted by the fielded light emitting device is a triplet that corresponds to a Commission Internationale de L'éclairage XYZ color space, wherein the calibration matrix contains measurements made by the fielded color measurement instrument of a first plurality of lights emitted by the fielded light emitting device and measurements made by a spectroradiometer of a second plurality of lights emitted by a reference light emitting device of a same make and model as the fielded light emitting device, wherein the spectroradiometer is located remotely from the fielded color measurement instrument, and storing the calibration matrix on the fielded color measurement instrument.
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公开(公告)号：US20210102842A1
公开(公告)日：2021-04-08
申请号：US16591088
申请日：2019-10-02
Applicant: Datacolor, Inc.
Inventor： Hong Wei , Sachin Deshpande , Taeyoung Park
Abstract: A processing system of a mobile device acquires an image of an object of a target color, wherein the image was captured by an integrated digital camera of the mobile device, calculates a first plurality of values that describes the target color, and wherein the calculating is based on an analysis of a pixel of the image, and identifies a first candidate color from among a plurality of candidate colors, wherein each candidate color in the plurality of candidate colors is associated with a second set of values that describes the each candidate color, and wherein the second set of values describing the first candidate color matches the first set of values more closely than any second set of values associated with another candidate color of the plurality of candidate colors.
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公开(公告)号：US10928251B2
公开(公告)日：2021-02-23
申请号：US16673405
申请日：2019-11-04
Applicant: DATACOLOR INC.
Inventor： Taeyoung Park , Hong Wei , Zhiling Xu , Venkata R. Thumu
Abstract: Embodiments of the present invention are directed towards systems, methods and computer program products for correcting inter-instrumentation variation among color measurement devices. In one particular implementation, a method for correcting inter-instrument variation among color measurement devices includes obtaining a set of color measurements of an item under analysis. The described approach also includes accessing a conversion model, wherein the conversion module has been generated using one or more ANN back propagated over a collection of data points, where the data points correspond to measurements of a color standard using devices from a control device batch and a test device batch. Using the conversion module, a processor is configured to transform the set of color measurements into a calibrated color measurement set. The calibrated color measurement set is then output to at least one display, memory or remote computing device.
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公开(公告)号：US10591354B1
公开(公告)日：2020-03-17
申请号：US16174746
申请日：2018-10-30
Applicant: DATACOLOR INC.
Inventor： Zhiling Xu
Abstract: A color measurement system is provided that includes an integrating sphere having at least one specular component included (SCI) sensor configured to output a signal in response to light incident thereupon and at least one specular component excluded (SCE) sensor configured to output a signal in response to light incident thereupon, a sample port, a SCE port, a light source configured to direct a beam of light into the sphere and provide illumination at the sample port and a specular component excluded port. The system also includes a processor having a memory and configured by code to activate the light source so as to cause a beam of light to be directed into the sphere and provide illumination to the sample port. The processor is also configured to receive a signal output by the SCI sensor and a signal output by the SCE sensor. Furthermore, the processor is configured to obtain at least one measurement coefficient value and generate a corrected SCE measurement value using at least the SCI sensor value, the SCE sensor value and the obtained measurement coefficient. The processor is configured to output at least the corrected SCE measurement value and the SCI measurement value.
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