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1. 发明公开

US20240333910A1 COLOR REFERENCE PATTERN FOR CHROMINANCE EVALUATION IN IMAGES 审中-公开
公开(公告)号：US20240333910A1
公开(公告)日：2024-10-03
申请号：US18193599
申请日：2023-03-30
申请人： Datacolor, Inc.
发明人： Casey Krugman
IPC分类号： H04N17/02 , G06T7/90
CPC分类号： H04N17/02 , G06T7/90 , G06T2207/10016 , G06T2207/10024
摘要： In one example, a color reference chart for evaluating a chrominance signal of a video image includes a plurality of color samples arranged in an array, wherein the plurality of color samples comprises: a first color sample of a first known, non-neutral hue and saturation and a second color sample of a second known, non-neutral hue and saturation positioned so that at least a portion of the second color sample is directly adjacent to at least a portion of the first color sample, and a barrier of a known neutral color positioned directly adjacent to the plurality of color samples without separating the at least a portion of the second color sample from the at least a portion of the first color sample.

2. 发明申请

US20220224818A1 Calibrating color measurement devices 有权
公开(公告)号：US20220224818A1
公开(公告)日：2022-07-14
申请号：US17146179
申请日：2021-01-11
申请人： DATACOLOR INC.
发明人： Hong Wei , Heath Barber
IPC分类号： H04N5/235 , G01J3/52 , G01J3/50 , G06N3/08
摘要： 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.

3. 发明申请

US20220065781A1 Method to Estimate Surface Gloss 有权
公开(公告)号：US20220065781A1
公开(公告)日：2022-03-03
申请号：US17008356
申请日：2020-08-31
申请人： DATACOLOR INC.
发明人： Zhiling Xu , Bill Binder , Venkata R. Thumu
IPC分类号： G01N21/57
摘要： As described herein, a method has been developed to estimate the gloss of a black or dark sample using a color measurement system. In such a system, when measuring a higher gloss sample, more illumination light reflected from the sample surface will be directed away from the receiving sensor, and thus less signal will be detected. Using a derived sensor-signal to surface-gloss relationship, the surface gloss of a sample can be calculated by applying the measurements of the sample to the signal to gloss relationship to obtain a more accurate gloss measurement of a sample under analysis.

4. 发明授权

US10768098B2 Spectrum recovery in a sample 有权
公开(公告)号：US10768098B2
公开(公告)日：2020-09-08
申请号：US16428490
申请日：2019-05-31
申请人： DATACOLOR INC.
发明人： Zhiling Xu
IPC分类号： G01J3/46 , G01N21/27 , G01N21/25
摘要： A method and a system are provided for obtaining improved spectra recovery results of a measurement of a sample through the use of a calibration matrix obtained from calibration measurement values using at least one illumination source. By calculating the reflectance spectrum of a collection of calibration samples across several rounds of measurements and cascading the results, an improved calibration matrix can be used to convert the sample measurement values to more accurate results.

5. 发明授权

US10564036B2 Color separation in images 有权
公开(公告)号：US10564036B2
公开(公告)日：2020-02-18
申请号：US15895519
申请日：2018-02-13
申请人： DATACOLOR INC.
发明人： Taeyoung Park , Hong Wei , Venkata R. Thumu , Kathleen A. Edwards
IPC分类号： G01J3/28 , G06T7/90 , G06T7/00 , G01J3/50 , G01J3/02 , G06T7/11
摘要： Systems, methods and computer program products for segmenting colors in a sample image comprised of pixels using a processor configured by code executing for selecting at least one color value present within the sample image and for each color selected from the sample image comparing the color values of each pixel of the sample image to the selected color value and averaging the color values of each pixels of the sample image having a color value difference below a pre-determined threshold. The method also includes outputting the average color value as a color value data object; and associating each averaged color value with sample image.

6. 发明申请

US20190301940A1 SPECTRUM RECOVERY IN A SAMPLE 审中-公开
公开(公告)号：US20190301940A1
公开(公告)日：2019-10-03
申请号：US15939044
申请日：2018-03-28
申请人： Datacolor Inc.
发明人： Zhiling Xu , Hong Wei , Taeyoung Park
IPC分类号： G01J3/46 , G06F17/16 , G01N21/25
摘要： 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.

7. 发明公开

US20230280212A1 INSTRUMENT MONITORING 审中-公开
公开(公告)号：US20230280212A1
公开(公告)日：2023-09-07
申请号：US17687005
申请日：2022-03-04
申请人： DATACOLOR INC.
发明人： Michael H. Brill , Zhiling Xu , Kathleen A. Edwards
IPC分类号： G01J3/52 , G01J3/50
CPC分类号： G01J3/524 , G01J3/501
摘要： 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.

8. 发明授权

US11287376B2 System and method to standardize whiteness calibration and measurement 有权
公开(公告)号：US11287376B2
公开(公告)日：2022-03-29
申请号：US16513236
申请日：2019-07-16
申请人： DATACOLOR INC.
发明人： Zhiling Xu , Michael H. Brill
IPC分类号： G01N21/47 , G01N21/27 , G01N21/64
摘要： By way of overview and introduction, various embodiments of the apparatus, systems and methods described herein are directed improved approaches to aligning and standardizing different total spectral radiance factor shapes measured with different instruments. Furthermore, in one or more configurations and approaches, the disclosure presented herein is directed to obtaining a whiteness calibration value for use in sample measurements without the need of UV filter adjustments.

9. 发明授权

US10643099B2 Multi-agent training of a color identification neural network 有权
公开(公告)号：US10643099B2
公开(公告)日：2020-05-05
申请号：US16421060
申请日：2019-05-23
申请人： DATACOLOR INC.
发明人： Zhiling Xu
IPC分类号： G06K9/46 , G06K9/62 , G06N3/02
CPC分类号： G06K9/4652 , G06K9/6271 , G06N3/02
摘要： 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.

10. 发明申请

US20200080893A1 RE-CALIBRATING COLOR MEASUREMENT INSTRUMENTS BASED ON USER-MADE COLOR SELECTIONS 审中-公开
公开(公告)号：US20200080893A1
公开(公告)日：2020-03-12
申请号：US16129283
申请日：2018-09-12
申请人： Datacolor, Inc.
发明人： Zhiling Xu , Taeyoung Park
IPC分类号： G01J3/52 , G06N7/00 , G06N3/08 , G06F8/65
摘要： In one example, an initial transform is stored for converting wavelength channel responses of a color measurement instrument to color readings. The initial transform is set in-factory by a manufacturer of the color measurement device. A color selection of a sample is subsequently retrieved from a database, where the color selection was made by an end user in response to a color reading by the color measurement instrument using the initial transform. An adjustment to the initial transform is calculated using the color selection. The adjustment is then sent to the color measurement instrument for use in making future color measurements.

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