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公开(公告)号：US10444074B1
公开(公告)日：2019-10-15
申请号：US15939044
申请日：2018-03-28
Applicant: Datacolor Inc.
Inventor： Zhiling Xu , Hong Wei , Taeyoung Park
Abstract: A method and a system are provided to measure transmittance or reflectance of a color specimen by using a transformation matrix obtained from the measurement values of a series of known transmittance or reflectance calibration color standards and multiple flashes from different illumination sources. A color spectrum can be determined with reduced error by calculating the reflectance spectra of an object using measurement matrices obtained under at least two illuminants and the transformation matrix.
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22.发明授权System and method for color correction of a microscope image with a built-in calibration slide 有权使用内置校准滑块对显微镜图像进行色彩校正的系统和方法公开(公告)号：US09429744B2
公开(公告)日：2016-08-30
申请号：US13856727
申请日：2013-04-04
Applicant: Datacolor, Inc.
Inventor： Hong Wei , Michael H. Brill
CPC classification number: G02B21/06 , G02B5/201 , G02B21/34 , G02B21/365
Abstract: A system and method are disclosed for correcting the color of microscope images for different illuminants. The system includes a microscope having at least one image setting value selector with a plurality of pre-set positions, and an optical train having a distal end and a proximal end and being configured to convey illumination. The optical train is further configured to allow introduction of a calibration slide into the optical train of the microscope at a plurality of possible positions, each position being a conjugate plane of the sample plane, when the sample is in focus. The calibration slide incorporates an integral transmission filter array of known transmission values.
Abstract translation: 公开了用于校正不同光源的显微镜图像的颜色的系统和方法。 该系统包括具有至少一个具有多个预设位置的图像设定值选择器的显微镜，以及具有远端和近端并被配置为传送照明的光学列车。 光学系统进一步构造成允许在多个可能的位置将校准载玻片引入到显微镜的光学系列中，每个位置都是样品平面的共轭平面。 校准滑块包含已知传输值的整体传输滤波器阵列。
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公开(公告)号：US20150124072A1
公开(公告)日：2015-05-07
申请号：US14069835
申请日：2013-11-01
Applicant: DATACOLOR, INC.
Inventor： Hong Wei , Mark S. McNulty , Michael H. Brill
CPC classification number: H04N17/002 , G02B21/365 , H04N5/23229 , H04N9/73 , H04N9/735
Abstract: A system and method for correcting the color of microscope images is described wherein a microscope, equipped with a variable light source and at least one microscope setting selector operates in conjunction with an image recording device having at least one image setting selector with a plurality of settings, and is configured to record at least one white balanced sample image of a sample. The system and method also includes the use of at least one white balanced calibration image of an integral transmissive color filter array of known transmission values in combination with an image processor executing code in order to color calibrate the sample images based on the calibration image.
Abstract translation: 描述了用于校正显微镜图像的颜色的系统和方法，其中配备有可变光源的显微镜和至少一个显微镜设置选择器与具有至少一个具有多个设置的图像设置选择器的图像记录装置一起操作 并且被配置为记录样品的至少一个白平衡样本图像。 该系统和方法还包括使用已知传输值的整体透射滤色器阵列的至少一个白平衡校准图像与图像处理器执行代码的组合，以便基于校准图像对样本图像进行颜色校准。
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公开(公告)号：US20250003875A1
公开(公告)日：2025-01-02
申请号：US18344085
申请日：2023-06-29
Applicant: DATACOLOR INC.
Inventor： Zhiling Xu
IPC: G01N21/57
Abstract: When a light beam hits an opaque sample, the sample will reflect light towards various directions with various intensities back into the 2π hemisphere above the sample plane. Bidirectional Reflectance Distribution Function (BRDF) can be used to describe such a property of the sample. A hemi-spherical screen is used to collect the light in the 2π hemisphere, and a pin-hole imaging system can be used to map the intensity of light distributed in the 2π hemisphere into a 2-dimensional image. From this 2-dimensional image, the BRDF of the sample material can be obtained.
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公开(公告)号：US12007282B2
公开(公告)日：2024-06-11
申请号：US17687005
申请日：2022-03-04
Applicant: DATACOLOR INC.
Inventor： Michael H. Brill , Zhiling Xu , Kathleen A. Edwards
Abstract: A method has been developed to monitor the aging of an illuminator (such as a lamp) and the interior sphere wall in a sphere-based color measurement instrument. This monitoring process or method is configurable to independently monitor the aging of the illuminator as well as the aging of the interior surface of a color measurement device using standard calibration measurements already present in the color measurement device.
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Patent Agency Ranking
公开(公告)号：US11740132B2
公开(公告)日：2023-08-29
申请号：US16591088
申请日：2019-10-02
Applicant: Datacolor, Inc.
Inventor： Hong Wei , Sachin Deshpande , Taeyoung Park
CPC classification number: G01J3/501 , G01J3/52 , G06T11/001
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：US11582398B2
公开(公告)日：2023-02-14
申请号：US17146179
申请日：2021-01-11
Applicant: DATACOLOR INC.
Inventor： Hong Wei , Heath Barber
Abstract: In one or more implementations, the apparatus, systems and methods disclosed herein are directed to calibrating a smart phone with an arbitrary phone case for color lookup applications, wherein the calibration process includes obtaining, with the smartphone without the case equipped, a first measurement data set that includes at least one measurement of each of a black, white and grey calibration target; obtaining, with the smartphone with the case equipped, at least three exposure measurements of a white calibration target at least three different exposure times; calculating an optimized exposure time using at least the at least three exposure measurements; obtaining, with the smartphone with the case equipped, a second measurement data set that includes at least one measurement of each of a black, white and grey calibration target at the optimized exposure time; generating fitting parameters from the first and second measurement datasets; and storing the generated fitting parameters and optimized exposure time in at least one of a local or remote data storage device.
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公开(公告)号：US11340156B2
公开(公告)日：2022-05-24
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：US20210131874A1
公开(公告)日：2021-05-06
申请号：US16668879
申请日：2019-10-30
Applicant: DATACOLOR INC.
Inventor： Zhiling Xu
Abstract: A system including a processor and a memory configured to store code executed by the processor is provided. In one or more implementations, the processor is configured by the code to calibrate measurements made by color measurement devices. In one particular implementation, the processor receives a measurement dataset of one or more color values, for a sample obtained by a color measurement device. The processor is configured to convert the measurement dataset to a standard space measurement dataset using a standard space measurement model and calculate a color dataset based on the standard space measurement dataset using a color conversion model. The processor is further configured to output the calculated color dataset to at least one of a display, database or local memory store.
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公开(公告)号：US10748304B2
公开(公告)日：2020-08-18
申请号：US15915815
申请日：2018-03-08
Applicant: Datacolor Inc.
Inventor： Zhiling Xu
IPC: G06T7/90 , G06K9/46 , G06K9/20 , G06F16/583
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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