Patents by Inventor Peter Ehbets
Peter Ehbets has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240053259Abstract: An optical system (230) comprises an image sensor (231), a reference sensor (232), and an optical multiplexer (300). The optical multiplexer defines a first area for receiving a first portion of incoming light and a second area (320) for receiving a second portion of the incoming light. The second area radially surrounds the first area. The optical multiplexer is arranged to direct the first portion of the incoming light to the image sensor (231) and the second portion of the incoming light to the reference sensor (232). The optical multiplexer may take the form of a pinhole minor (300).Type: ApplicationFiled: January 7, 2022Publication date: February 15, 2024Inventor: Peter EHBETS
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Publication number: 20230349765Abstract: 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 coloType: ApplicationFiled: June 22, 2023Publication date: November 2, 2023Inventors: Wilhelm H. KETTLER, Milos SORMAZ, Peter EHBETS
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Patent number: 11719578Abstract: 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 coloType: GrantFiled: August 25, 2017Date of Patent: August 8, 2023Assignee: X-RITE EUROPE GMBHInventors: Wilhelm H. Kettler, Milos Sormaz, Peter Ehbets
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Publication number: 20210372920Abstract: A non-contact multispectral measurement device for measuring reflectance properties of a surface of interest may include a multispectral measurement system, a position measurement system for measuring position values of the multispectral measurement system relative to the surface of interest, and means to correct multispectral values from the multispectral measurement system based on detected position values from the position measurement system. In some embodiments the multispectral measurement system is configured with a retro-reflection measurement geometry, where the illumination light path and observation light path are inclined with respect to a surface normal of the surface of interest to reduce detection of gloss or surface reflections while obtaining multispectral values. The position measurement system may be selected from the group consisting of: a pattern projector and a camera, a camera autofocus system, a stereo vision system, a laser range finder, and a time of flight distance sensor.Type: ApplicationFiled: May 6, 2019Publication date: December 2, 2021Inventors: Peter EHBETS, Vitaly DMITRIEV, Heiko GROSS, Johannes RILK, Thomas HOEPPLER, David GAMPERL
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Publication number: 20210310870Abstract: 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 coloType: ApplicationFiled: August 25, 2017Publication date: October 7, 2021Inventors: Wilhelm H. Kettler, Milos Sormaz, Peter Ehbets
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Patent number: 10724901Abstract: A colour measurement device includes a measurement array (MA) which includes: a plurality of illumination arrays (20, 30, 40) for exposing a measurement spot (MS) on a measurement object (MO) to illumination light in an actual illumination direction (2, 3, 4) in each case, and a pick-up array (50) for detecting the measurement light reflected by the measurement spot (MS) in an actual observation direction (5) and for converting it into preferably spectral reflection factors; and a controller for the illumination arrays and the pick-up array and for processing the electrical signals produced by the pick-up array. The controller is embodied to process the measured reflection factors on the basis of a correction model, such that distortions in the measurement values as compared to nominal illumination and/or observation directions, caused by angular errors in the illumination arrays and/or the pick-up array, are corrected.Type: GrantFiled: March 4, 2019Date of Patent: July 28, 2020Assignee: X-Rite Europe GmbHInventors: Peter Ehbets, Matthias Scheller Lichtenauer
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Publication number: 20200064194Abstract: 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.Type: ApplicationFiled: May 3, 2018Publication date: February 27, 2020Inventors: Christophe DAUGA, Thomas NETTER, James William VOGH, Peter EHBETS
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Publication number: 20190265102Abstract: A colour measurement device includes a measurement array (MA) which includes: a plurality of illumination arrays (20, 30, 40) for exposing a measurement spot (MS) on a measurement object (MO) to illumination light in an actual illumination direction (2, 3, 4) in each case, and a pick-up array (50) for detecting the measurement light reflected by the measurement spot (MS) in an actual observation direction (5) and for converting it into preferably spectral reflection factors; and a controller for the illumination arrays and the pick-up array and for processing the electrical signals produced by the pick-up array. The controller is embodied to process the measured reflection factors on the basis of a correction model, such that distortions in the measurement values as compared to nominal illumination and/or observation directions, caused by angular errors in the illumination arrays and/or the pick-up array, are corrected.Type: ApplicationFiled: March 4, 2019Publication date: August 29, 2019Inventors: Peter Ehbets, Matthias Scheller Lichtenauer
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Patent number: 10386235Abstract: A device for radiometrically gauging the surface of a measurement object (O) includes: at least one measurement array featuring an illumination array and a pick-up array; and a processor (P) for controlling the illumination array and the pick-up array and for processing measurement signals produced by the pick-up array and for providing processed image data. The illumination array exposes a region of the measurement object (O) to illumination light at an illumination angle (?i) and an illumination aperture angle (?i), and the pick-up array captures measurement light, reflected by the measurement object (O), at a pick-up angle (?v) and a pick-up aperture angle (?v) and guides it onto an image sensor exhibiting a pixel structure. The measurement object (O) is gauged multispectrally in multiple wavelength ranges, wherein the image sensor produces multispectral image data. Angular and spatial conditions are indicated which optimize the measurement device (MD) with regard to characterizing sparkles.Type: GrantFiled: May 22, 2018Date of Patent: August 20, 2019Assignee: X-Rite Switzerland GmbHInventors: Peter Ehbets, Guido Niederer
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Patent number: 10260950Abstract: A hand-held measurement device for appearance analyses includes a measurement array which comprises a number of illumination means for applying illumination light to a measurement field in at least three illumination directions and a number of pick-up means for capturing the measurement light in at least one observation direction. The illumination directions and the observation directions lie in a common system plane. At least one pick-up means is embodied to spectrally gauge the measurement light in a locally integral way, and at least one imaging pick-up means is embodied to gauge the measurement light in terms of color in a locally resolved way. The spectral pick-up means and the locally resolving pick-up means are arranged such that they receive the measurement light reflected by the measurement field under the same observation conditions and in particular from the same observation direction.Type: GrantFiled: October 1, 2018Date of Patent: April 16, 2019Assignee: X-RITE SWITZERLAND GMBHInventors: Peter Ehbets, Beat Frick, Mark Wegmuller, Jorg Hunkemeier, Guido Niederer
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Patent number: 10260943Abstract: A color measurement device includes a measurement array (MA) which includes: a plurality of illumination arrays (20, 30, 40) for exposing a measurement spot (MS) on a measurement object (MO) to illumination light in an actual illumination direction (2, 3, 4) in each case, and a pick-up array (50) for detecting the measurement light reflected by the measurement spot (MS) in an actual observation direction (5) and for converting it into preferably spectral reflection factors; and a controller for the illumination arrays and the pick-up array and for processing the electrical signals produced by the pick-up array. The controller is embodied to process the measured reflection factors on the basis of a correction model, such that distortions in the measurement values as compared to nominal illumination and/or observation directions, caused by angular errors in the illumination arrays and/or the pick-up array, are corrected.Type: GrantFiled: April 8, 2016Date of Patent: April 16, 2019Assignee: X-Rite Switzerland GmbHInventors: Peter Ehbets, Matthias Scheller Lichtenauer
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Publication number: 20190049304Abstract: A hand-held measurement device for appearance analyses includes a measurement array which comprises a number of illumination means for applying illumination light to a measurement field in at least three illumination directions and a number of pick-up means for capturing the measurement light in at least one observation direction. The illumination directions and the observation directions lie in a common system plane. At least one pick-up means is embodied to spectrally gauge the measurement light in a locally integral way, and at least one imaging pick-up means is embodied to gauge the measurement light in terms of colour in a locally resolved way. The spectral pick-up means and the locally resolving pick-up means are arranged such that they receive the measurement light reflected by the measurement field under the same observation conditions and in particular from the same observation direction.Type: ApplicationFiled: October 1, 2018Publication date: February 14, 2019Inventors: Peter EHBETS, Beat FRICK, Mark WEGMULLER, Jorg HUNKEMEIER, Guido NIEDERER
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Patent number: 10126171Abstract: A hand-held measurement device for appearance analyzes includes a measurement array which comprises a number of illumination means for applying illumination light to a measurement field in at least three illumination directions and a number of pick-up means for capturing the measurement light in at least one observation direction. The illumination directions and the observation directions lie in a common system plane. At least one pick-up means is embodied to spectrally gauge the measurement light in a locally integral way, and at least one imaging pick-up means is embodied to gauge the measurement light in terms of color in a locally resolved way. The spectral pick-up means and the locally resolving pick-up means are arranged such that they receive the measurement light reflected by the measurement field under the same observation conditions and in particular from the same observation direction.Type: GrantFiled: September 19, 2017Date of Patent: November 13, 2018Assignee: X-RITE SWITZERLAND GMBHInventors: Peter Ehbets, Beat Frick, Mark Wegmüller, Jörg Hünkemeier, Guido Niederer
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Publication number: 20180283945Abstract: A device for radiometrically gauging the surface of a measurement object (O) includes: at least one measurement array featuring an illumination array and a pick-up array; and a processor (P) for controlling the illumination array and the pick-up array and for processing measurement signals produced by the pick-up array and for providing processed image data. The illumination array exposes a region of the measurement object (O) to illumination light at an illumination angle (?i) and an illumination aperture angle (?i), and the pick-up array captures measurement light, reflected by the measurement object (O), at a pick-up angle (?v) and a pick-up aperture angle (?v) and guides it onto an image sensor exhibiting a pixel structure. The measurement object (O) is gauged multispectrally in multiple wavelength ranges, wherein the image sensor produces multispectral image data. Angular and spatial conditions are indicated which optimise the measurement device (MD) with regard to characterising sparkles.Type: ApplicationFiled: May 22, 2018Publication date: October 4, 2018Inventors: Peter Ehbets, Guido Niederer
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Patent number: 10001411Abstract: A device for radiometrically gauging the surface of a measurement object (O) includes: at least one measurement array featuring an illumination array and a pick-up array; and a processor (P) for controlling the illumination array and the pick-up array and for processing measurement signals produced by the pick-up array and for providing processed image data. The illumination array exposes a region of the measurement object (O) to illumination light at an illumination angle (?i) and an illumination aperture angle (?i), and the pick-up array captures measurement light, reflected by the measurement object (O), at a pick-up angle (?v) and a pick-up aperture angle (?v) and guides it onto an image sensor exhibiting a pixel structure. The measurement object (O) is gauged multispectrally in multiple wavelength ranges, wherein the image sensor produces multispectral image data. Angular and spatial conditions are indicated which optimise the measurement device (MD) with regard to characterising sparkles.Type: GrantFiled: April 18, 2016Date of Patent: June 19, 2018Assignee: X-Rite Switzerland GMBHInventors: Peter Ehbets, Guido Niederer
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Publication number: 20180024005Abstract: A hand-held measurement device for appearance analyses includes a measurement array which comprises a number of illumination means for applying illumination light to a measurement field in at least three illumination directions and a number of pick-up means for capturing the measurement light in at least one observation direction. The illumination directions and the observation directions lie in a common system plane. At least one pick-up means is embodied to spectrally gauge the measurement light in a locally integral way, and at least one imaging pick-up means is embodied to gauge the measurement light in terms of colour in a locally resolved way. The spectral pick-up means and the locally resolving pick-up means are arranged such that they receive the measurement light reflected by the measurement field under the same observation conditions and in particular from the same observation direction.Type: ApplicationFiled: September 19, 2017Publication date: January 25, 2018Inventors: Peter EHBETS, Beat Frick, Mark Wegmüller, Jörg Hünkemeier, Guido Niederer
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Patent number: 9772230Abstract: A hand-held measurement device for appearance analyses includes a measurement array which comprises a number of illumination means for applying illumination light to a measurement field in at least three illumination directions and a number of pick-up means for capturing the measurement light in at least one observation direction. The illumination directions and the observation directions lie in a common system plane. At least one pick-up means is embodied to spectrally gauge the measurement light in a locally integral way, and at least one imaging pick-up means is embodied to gauge the measurement light in terms of color in a locally resolved way. The spectral pick-up means and the locally resolving pick-up means are arranged such that they receive the measurement light reflected by the measurement field under the same observation conditions and in particular from the same observation direction.Type: GrantFiled: October 30, 2013Date of Patent: September 26, 2017Assignee: X-Rite Switzerland GmbHInventors: Peter Ehbets, Beat Frick, Mark Wegmuller, Jorg Hunkemeier, Guido Niederer
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Publication number: 20170176254Abstract: A device for radiometrically gauging the surface of a measurement object (O) includes: at least one measurement array featuring an illumination array and a pick-up array; and a processor (P) for controlling the illumination array and the pick-up array and for processing measurement signals produced by the pick-up array and for providing processed image data. The illumination array exposes a region of the measurement object (O) to illumination light at an illumination angle (?i) and an illumination aperture angle (?i), and the pick-up array captures measurement light, reflected by the measurement object (O), at a pick-up angle (?v) and a pick-up aperture angle (?v) and guides it onto an image sensor exhibiting a pixel structure. The measurement object (O) is gauged multispectrally in multiple wavelength ranges, wherein the image sensor produces multispectral image data. Angular and spatial conditions are indicated which optimise the measurement device (MD) with regard to characterising sparkles.Type: ApplicationFiled: April 18, 2016Publication date: June 22, 2017Applicant: X-Rite Switzerland GmbHInventors: Peter Ehbets, Guido Niederer
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Publication number: 20160327431Abstract: A colour measurement device includes a measurement array (MA) which includes: a plurality of illumination arrays (20, 30, 40) for exposing a measurement spot (MS) on a measurement object (MO) to illumination light in an actual illumination direction (2, 3, 4) in each case, and a pick-up array (50) for detecting the measurement light reflected by the measurement spot (MS) in an actual observation direction (5) and for converting it into preferably spectral reflection factors; and a controller for the illumination arrays and the pick-up array and for processing the electrical signals produced by the pick-up array. The controller is embodied to process the measured reflection factors on the basis of a correction model, such that distortions in the measurement values as compared to nominal illumination and/or observation directions, caused by angular errors in the illumination arrays and/or the pick-up array, are corrected.Type: ApplicationFiled: April 8, 2016Publication date: November 10, 2016Applicant: X-Rite Switzerland GmbHInventors: Peter Ehbets, Matthias Scheller Lichtenauer
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Publication number: 20140152990Abstract: A hand-held measurement device for appearance analyses includes a measurement array which comprises a number of illumination means for applying illumination light to a measurement field in at least three illumination directions and a number of pick-up means for capturing the measurement light in at least one observation direction. The illumination directions and the observation directions lie in a common system plane. At least one pick-up means is embodied to spectrally gauge the measurement light in a locally integral way, and at least one imaging pick-up means is embodied to gauge the measurement light in terms of colour in a locally resolved way. The spectral pick-up means and the locally resolving pick-up means are arranged such that they receive the measurement light reflected by the measurement field under the same observation conditions and in particular from the same observation direction.Type: ApplicationFiled: October 30, 2013Publication date: June 5, 2014Applicant: X-RITE EUROPE GMBHInventors: Peter Ehbets, Beat Frick, Mark Wegmuller, Jorg Hunkemeier, Guido Niederer