Patents by Inventor Naohiro Kamijo
Naohiro Kamijo 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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Patent number: 11900423Abstract: An image retrieval apparatus acquires an image to be processed, the image to be processed including at least one article. The image retrieval apparatus specifies, as an association image, a product image of a product having an evaluation value that has a predetermined relationship with an evaluation value of the article included in the image to be processed, from among product images of a plurality of products each belonging to a particular category, the particular category being different from a category to which the article included in the image to be processed belongs. The image to be processed and the specified association image may be output in association with each other.Type: GrantFiled: May 21, 2019Date of Patent: February 13, 2024Assignee: RICOH COMPANY, LTD.Inventors: Akihiro Kakinuma, Tomoyasu Aizaki, Naohiro Kamijo
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Publication number: 20210150590Abstract: An image retrieval apparatus acquires an image to be processed, the image to be processed including at least one article. The image retrieval apparatus specifies, as an association image, a product image of a product having an evaluation value that has a predetermined relationship with an evaluation value of the article included in the image to be processed, from among product images of a plurality of products each belonging to a particular category, the particular category being different from a category to which the article included in the image to be processed belongs. The image to be processed and the specified association image may be output in association with each other.Type: ApplicationFiled: May 21, 2019Publication date: May 20, 2021Inventors: Akihiro KAKINUMA, Tomoyasu AIZAKI, Naohiro KAMIJO
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Patent number: 9958265Abstract: A specimen measuring device includes: a light source device that irradiates a specimen surface of a specimen with illumination light from multiple illumination units at a plurality of illumination angles; a spectral camera device that is arranged above the specimen surface, spectrally separates reflected light from the specimen surface, and acquires 2D spectral information through a single image capturing operation; and a calculating unit that calculates deflection angle spectral information of the specimen surface used to measure a measurement value of a certain evaluation item of the specimen using a change in an optical geometrical condition of an illumination direction and an image capturing direction between pixels in an X axis direction and a Y axis direction of the spectral information.Type: GrantFiled: August 3, 2015Date of Patent: May 1, 2018Assignee: RICOH COMPANY, LTD.Inventors: Sho Nagai, Kensuke Masuda, Go Maruyama, Yuji Yamanaka, Naohiro Kamijo, Kenji Kagitani
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Patent number: 9677938Abstract: A spectral characteristic acquisition device includes a member configured to have a plurality of openings arrayed in a predetermined direction, each of the plurality of openings inclined with respect to the predetermined direction, the plurality of openings being configured to pass light beams from a plurality of positions on an object therethrough, a spectrally dispersing part configured to spectrally disperse the light beams having passed through the plurality of openings in a direction orthogonal to the predetermined direction, and a plurality of one-dimensional image capturing parts provided at a predetermined interval in a plurality of lines and configured to be irradiated with the light beams having been spectrally dispersed by the spectrally dispersing part, a plurality of pixels of the plurality of one-dimensional image capturing parts being arrayed in a direction parallel to the predetermined direction.Type: GrantFiled: May 8, 2014Date of Patent: June 13, 2017Assignee: Ricoh Company, Ltd.Inventors: Kohei Shimbo, Naohiro Kamijo, Yoichi Kubota
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Patent number: 9355466Abstract: An image processing apparatus includes a skin information obtaining unit that extracts a skin area from an image and obtains skin information from the skin area; an independent component extracting unit that extracts independent components constituting the skin area from the skin information; and a bias calculation unit that calculates, based on the independent components, a bias representing color information of a light source used to illuminate the skin area when the image is captured.Type: GrantFiled: December 19, 2014Date of Patent: May 31, 2016Assignees: Ricoh Company, Ltd., Chiba UniversityInventors: Akihiro Kakinuma, Hiroshi Takahashi, Naohiro Kamijo, Norimichi Tsumura, Satomi Tanaka
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Publication number: 20160040985Abstract: A specimen measuring device includes: a light source device that irradiates a specimen surface of a specimen with illumination light from multiple illumination units at a plurality of illumination angles; a spectral camera device that is arranged above the specimen surface, spectrally separates reflected light from the specimen surface, and acquires 2D spectral information through a single image capturing operation; and a calculating unit that calculates deflection angle spectral information of the specimen surface used to measure a measurement value of a certain evaluation item of the specimen using a change in an optical geometrical condition of an illumination direction and an image capturing direction between pixels in an X axis direction and a Y axis direction of the spectral information.Type: ApplicationFiled: August 3, 2015Publication date: February 11, 2016Inventors: Sho NAGAI, Kensuke Masuda, Go Maruyama, Yuji Yamanaka, Naohiro Kamijo, Kenji Kagitani
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Patent number: 9222833Abstract: A spectral characteristic obtaining apparatus including a light irradiation unit configured to emit light onto a reading object; a spectroscopic unit configured to separate at least a part of diffused reflected light from the light emitted onto the reading object by the light irradiation unit into a spectrum; and a light receiving unit configured to receive the diffused reflected light separated into the spectrum by the spectroscopic unit and to obtain a spectral characteristic. The light receiving unit is configured to be a spectroscopic sensor array including plural spectroscopic sensors arranged in a direction, and the spectroscopic sensors include a predetermined number of pixels arranged in the direction to receive lights with different spectral characteristics from each other.Type: GrantFiled: May 21, 2015Date of Patent: December 29, 2015Assignee: Ricoh Company, Ltd.Inventors: Manabu Seo, Naohiro Kamijo, Kohei Shimbo
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Patent number: 9224080Abstract: A spectral characteristic acquisition device includes a light irradiation part configured to irradiate an object with light, a diffraction part configured to diffract light reflected from the object to provide diffracted light, a light-receiving part configured to receive the diffracted light and output a signal based on an amount of the diffracted light, a calibration color index configured to include a color with a known spectral characteristic, and an operation part configured to calculate a spectral characteristic of the object from a signal output from the light-receiving part by using a predetermined transformation matrix and calibrate the transformation matrix by using the calibration color index.Type: GrantFiled: February 5, 2015Date of Patent: December 29, 2015Assignee: RICOH COMPANY, LTD.Inventors: Yoichi Kubota, Kohei Shimbo, Naohiro Kamijo
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Patent number: 9197761Abstract: A spectral characteristic acquisition apparatus includes a light emitting part configured to emit light onto an object, a light dividing part configured to divide the light reflected from the object into multiple light beams by multiple aperture parts of the light dividing part, a dispersing part configured to form multiple diffraction images corresponding to the aperture parts by spectrally dispersing the light beams, a light receiving part including an array of spectral sensors that receive the diffraction images at substantially the same position on their respective light receiving surfaces and convert the received diffraction images into electrical signals, and an operation part configured to compute a spectral characteristic of the object based on the electrical signals.Type: GrantFiled: August 8, 2014Date of Patent: November 24, 2015Assignee: RICOH COMPANY, LTD.Inventors: Naohiro Kamijo, Kohei Shimbo, Yoichi Kubota
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Publication number: 20150253190Abstract: A spectral characteristic obtaining apparatus including a light irradiation unit configured to emit light onto a reading object; a spectroscopic unit configured to separate at least a part of diffused reflected light from the light emitted onto the reading object by the light irradiation unit into a spectrum; and a light receiving unit configured to receive the diffused reflected light separated into the spectrum by the spectroscopic unit and to obtain a spectral characteristic. The light receiving unit is configured to be a spectroscopic sensor array including plural spectroscopic sensors arranged in a direction, and the spectroscopic sensors include a predetermined number of pixels arranged in the direction to receive lights with different spectral characteristics from each other.Type: ApplicationFiled: May 21, 2015Publication date: September 10, 2015Applicant: Ricoh Company, Ltd.Inventors: Manabu Seo, Naohiro Kamijo, Kohei Shimbo
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Publication number: 20150235114Abstract: A spectral characteristic acquisition device includes a light irradiation part configured to irradiate an object with light, a diffraction part configured to diffract light reflected from the object to provide diffracted light, a light-receiving part configured to receive the diffracted light and output a signal based on an amount of the diffracted light, a calibration color index configured to include a color with a known spectral characteristic, and an operation part configured to calculate a spectral characteristic of the object from a signal output from the light-receiving part by using a predetermined transformation matrix and calibrate the transformation matrix by using the calibration color index.Type: ApplicationFiled: February 5, 2015Publication date: August 20, 2015Applicant: RICOH COMPANY, LTD.Inventors: Yoichi KUBOTA, Kohei SHIMBO, Naohiro KAMIJO
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Patent number: 9068893Abstract: A spectral characteristic obtaining apparatus including a light irradiation unit configured to emit light onto a reading object; a spectroscopic unit configured to separate at least a part of diffused reflected light from the light emitted onto the reading object by the light irradiation unit into a spectrum; and a light receiving unit configured to receive the diffused reflected light separated into the spectrum by the spectroscopic unit and to obtain a spectral characteristic. In at least one example embodiment, the light receiving unit is configured to be a spectroscopic sensor array including plural spectroscopic sensors arranged in a direction, and the spectroscopic sensors include a predetermined number of pixels arranged in the direction to receive lights with different spectral characteristics from each other.Type: GrantFiled: March 24, 2010Date of Patent: June 30, 2015Assignee: Ricoh Company, Ltd.Inventors: Manabu Seo, Naohiro Kamijo, Kohei Shimbo
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Publication number: 20150178950Abstract: An image processing apparatus includes a skin information obtaining unit that extracts a skin area from an image and obtains skin information from the skin area; an independent component extracting unit that extracts independent components constituting the skin area from the skin information; and a bias calculation unit that calculates, based on the independent components, a bias representing color information of a light source used to illuminate the skin area when the image is captured.Type: ApplicationFiled: December 19, 2014Publication date: June 25, 2015Applicants: Chiba University, RICOH COMPANY, LTD.Inventors: Akihiro KAKINUMA, Hiroshi TAKAHASHI, Naohiro KAMIJO, Norimichi TSUMURA, Satomi TANAKA
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Patent number: 8964176Abstract: A spectrometer includes a light source to project a light beam to a target object, an optical element including a plurality of apertures through which the light beam reflected by the target object transmits, a diffraction element to form diffracted images from a plurality of light beams having transmitted through the optical element, and a light receiving element to receive the diffracted images formed by the diffraction element and including an optical shield to block a diffracted image other than a certain-order diffracted image.Type: GrantFiled: March 5, 2013Date of Patent: February 24, 2015Assignee: Ricoh Company, Ltd.Inventors: Naohiro Kamijo, Kohei Shimbo, Yoichi Kubota, Manabu Seo
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Publication number: 20150049371Abstract: A spectral characteristic acquisition apparatus includes a light emitting part configured to emit light onto an object, a light dividing part configured to divide the light reflected from the object into multiple light beams by multiple aperture parts of the light dividing part, a dispersing part configured to form multiple diffraction images corresponding to the aperture parts by spectrally dispersing the light beams, a light receiving part including an array of spectral sensors that receive the diffraction images at substantially the same position on their respective light receiving surfaces and convert the received diffraction images into electrical signals, and an operation part configured to compute a spectral characteristic of the object based on the electrical signals.Type: ApplicationFiled: August 8, 2014Publication date: February 19, 2015Applicant: RICOH COMPANY, LTD.Inventors: Naohiro KAMIJO, Kohei SHIMBO, Yoichi KUBOTA
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Patent number: 8908176Abstract: A spectral characteristic obtaining apparatus includes a detection unit detecting light quantities in plural wavelength bands from a measurement target, a storage unit storing pre-obtained spectral characteristics of the measurement target, a calculation unit calculating a primary transformation matrix from the light quantities and the pre-obtained spectral characteristics of at least one reference sample and a secondary transformation matrix from one of the pre-obtained spectral characteristics corresponding to a primary wavelength band and another one of the pre-obtained spectral characteristics corresponding to a secondary wavelength band, an estimation unit estimating the spectral characteristics of the measurement target by performing a primary estimation on the light quantities in the plural wavelength bands by using the primary transformation matrix, performing a secondary estimation on a result of the primary estimation by using the secondary transformation matrix, and compositing a result of the secoType: GrantFiled: January 15, 2013Date of Patent: December 9, 2014Assignee: Ricoh Company, Ltd.Inventors: Yoichi Kubota, Naoko Shigemori, Naohiro Kamijo, Kohei Shimbo, Manabu Seo
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Publication number: 20140333927Abstract: A spectral characteristic acquisition device includes a member configured to have a plurality of openings arrayed in a predetermined direction, each of the plurality of openings inclined with respect to the predetermined direction, the plurality of openings being configured to pass light beams from a plurality of positions on an object therethrough, a spectrally dispersing part configured to spectrally disperse the light beams having passed through the plurality of openings in a direction orthogonal to the predetermined direction, and a plurality of one-dimensional image capturing parts provided at a predetermined interval in a plurality of lines and configured to be irradiated with the light beams having been spectrally dispersed by the spectrally dispersing part, a plurality of pixels of the plurality of one-dimensional image capturing parts being arrayed in a direction parallel to the predetermined direction.Type: ApplicationFiled: May 8, 2014Publication date: November 13, 2014Applicant: RICOH COMPANY, LTD.Inventors: Kohei SHIMBO, Naohiro Kamijo, Yoichi Kubota
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Patent number: 8879057Abstract: A spectral characteristic acquiring apparatus is provided which includes: an area dividing part; a spectrum separating part; a light receiving part; and a calculating part, wherein the calculating part includes a transformation matrix storing part that stores a transformation matrix used for calculating the spectral characteristic corresponding to electrical signals of a first diffraction pattern group including two or more adjacent diffraction patterns, and a spectral characteristic calculating part that calculates, based on the electrical signals of the first diffraction pattern group and the corresponding transformation matrix, the spectral characteristic at the locations of the image carrying medium corresponding to the apertures of the first diffraction pattern group.Type: GrantFiled: July 27, 2012Date of Patent: November 4, 2014Assignee: Ricoh Company, Ltd.Inventors: Kohei Shimbo, Naohiro Kamijo, Yoichi Kubota, Manabu Seo
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Patent number: 8755046Abstract: A spectrometer includes a light source to project a light beam to a target object, a spectral element to disperse the light beam reflected by the target object and including a diffraction element to diffract the light beam, and a light receiving element to receive, at pixels, light beams with different spectral characteristics from each other dispersed by the spectral element, wherein the diffraction element and the light receiving element are integrally formed.Type: GrantFiled: March 7, 2013Date of Patent: June 17, 2014Assignee: Ricoh Company, Ltd.Inventors: Kohei Shimbo, Naohiro Kamijo, Yoichi Kubota, Manabu Seo
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Patent number: 8593628Abstract: Spectral characteristics of an object is estimated using an extended sensor response, which includes a product of at least two light intensity signals whose wavelength ranges are partially overlapped with each other.Type: GrantFiled: June 21, 2011Date of Patent: November 26, 2013Assignee: Ricoh Company, LimitedInventors: Kohei Shimbo, Naohiro Kamijo, Manabu Seo, Yoichi Kubota