Patents by Inventor Akihiro Kakinuma
Akihiro Kakinuma 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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Patent number: 11164234Abstract: An image searching apparatus includes processing circuitry configured to calculate an evaluation value that indicates a preference of a customer, by using an image feature amount based on an image; and identify an image to be recommended to the customer by using the calculated evaluation value, from among images of a plurality of articles.Type: GrantFiled: February 27, 2019Date of Patent: November 2, 2021Assignee: Ricoh Company, Ltd.Inventor: Akihiro Kakinuma
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Patent number: 11093974Abstract: An information processing system includes circuitry configured to store, in a memory, one or more feature value patterns associated with appearance attribute of one or more groups of persons calculated from a plurality of acquired image data using machine learning, in which each one of the groups assumed to have a unique group value being different for each one of the groups, receive image data of a target person input as analysis target data, analyze an appearance attribute of the target person in the image data using the one or more feature value patterns associated with the appearance attribute of the one or more groups stored in the memory, and output a response corresponding to an analysis result of the appearance attribute of the target person.Type: GrantFiled: January 3, 2019Date of Patent: August 17, 2021Assignee: RICOH COMPANY, LTD.Inventors: Tomoyuki Tazuke, Muneyuki Hamabe, Akihiro Kakinuma
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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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Publication number: 20190287154Abstract: An image searching apparatus includes processing circuitry configured to calculate an evaluation value that indicates a preference of a customer, by using an image feature amount based on an image; and identify an image to be recommended to the customer by using the calculated evaluation value, from among images of a plurality of articles.Type: ApplicationFiled: February 27, 2019Publication date: September 19, 2019Applicant: Ricoh Company, Ltd.Inventor: Akihiro KAKINUMA
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Publication number: 20190220900Abstract: An information processing system includes circuitry configured to store, in a memory, one or more feature value patterns associated with appearance attribute of one or more groups of persons calculated from a plurality of acquired image data using machine learning, in which each one of the groups assumed to have a unique group value being different for each one of the groups, receive image data of a target person input as analysis target data, analyze an appearance attribute of the target person in the image data using the one or more feature value patterns associated with the appearance attribute of the one or more groups stored in the memory, and output a response corresponding to an analysis result of the appearance attribute of the target person.Type: ApplicationFiled: January 3, 2019Publication date: July 18, 2019Applicant: Ricoh Company, Ltd.Inventors: Tomoyuki Tazuke, Muneyuki HAMABE, Akihiro KAKINUMA
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Patent number: 9967434Abstract: An image processing apparatus includes a skin area extraction unit that extracts a skin area from image data, a chromaticity computation unit that computes hue information and saturation information of the skin area, a hue conversion unit that converts the hue information so that the hue information is in agreement with target information, a reception unit that receives a change instruction to change the saturation information, a parameter determination unit that determines a conversion parameter based on the change instruction, and a saturation conversion unit that converts the saturation information based on the conversion parameter.Type: GrantFiled: December 12, 2014Date of Patent: May 8, 2018Assignee: Ricoh Company, Ltd.Inventor: Akihiro Kakinuma
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Patent number: 9621763Abstract: An image processing apparatus includes an image information acquisition unit acquiring average brightness of image data and cumulative frequency distribution of pixels related to gradation of the image data; a conversion range determination unit acquiring a conversion threshold value from the average brightness based on a previously set relationship and determining a gradation conversion range where the gradation of the image data is to be converted based on a gradation where a cumulative frequency corresponds to the conversion threshold value in the cumulative frequency distribution; and a gradation conversion unit converting the gradation of the image data in the gradation conversion range.Type: GrantFiled: August 5, 2014Date of Patent: April 11, 2017Assignee: Ricoh Company, Ltd.Inventor: Akihiro Kakinuma
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Publication number: 20160323481Abstract: An image processing apparatus includes a skin area extraction unit that extracts a skin area from image data, a chromaticity computation unit that computes hue information and saturation information of the skin area, a hue conversion unit that converts the hue information so that the hue information is in agreement with target information, a reception unit that receives a change instruction to change the saturation information, a parameter determination unit that determines a conversion parameter based on the change instruction, and a saturation conversion unit that converts the saturation information based on the conversion parameter.Type: ApplicationFiled: December 12, 2014Publication date: November 3, 2016Applicant: Ricoh Company, Ltd.Inventor: Akihiro KAKINUMA
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Publication number: 20160165095Abstract: An image processing apparatus includes an image information acquisition unit acquiring average brightness of image data and cumulative frequency distribution of pixels related to gradation of the image data; a conversion range determination unit acquiring a conversion threshold value from the average brightness based on a previously set relationship and determining a gradation conversion range where the gradation of the image data is to be converted based on a gradation where a cumulative frequency corresponds to the conversion threshold value in the cumulative frequency distribution; and a gradation conversion unit converting the gradation of the image data in the gradation conversion range.Type: ApplicationFiled: August 5, 2014Publication date: June 9, 2016Applicant: RICOH COMPANY, LTD.Inventor: Akihiro KAKINUMA
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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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Patent number: 9211748Abstract: A printing apparatus and a calibration method are provided which, by using a small-capacity memory, can perform a high-speed calibration processing on data used to eject ink of the same color from a plurality of nozzle arrays. By ejecting ink of the same color from the plurality of nozzle arrays, patch is printed and, based on the printed result of the patch, a content of a print data correction processing is changed.Type: GrantFiled: April 25, 2011Date of Patent: December 15, 2015Assignee: Canon Kabushiki KaishaInventors: Naoko Baba, Daigoro Kanematsu, Akihiro Kakinuma, Asako Watanabe, Mitsutoshi Nagamura, Akihiro Tomida
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Publication number: 20150332653Abstract: An image processing apparatus includes a region extraction unit that extracts a conversion region from input image data; a color information acquisition unit that acquires color information from the conversion region; a target color information acquisition unit that acquires target color information, which is a target of conversion for the color information; a conversion unit that generates conversion information based on the color information and the target color information, and converts the color information based on the conversion information, to generate converted image data; a display and input unit that displays the input image data and the converted image data, and receives an input of a final conversion target, which is a final target of conversion for the color in formation; and a final conversion unit that generates final conversion information based on the final conversion target, and converts the color information based on the final conversion information, to generate final image data.Type: ApplicationFiled: February 4, 2014Publication date: November 19, 2015Inventor: Akihiro KAKINUMA
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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: 8926078Abstract: An ink containing a plurality of coloring materials having different hues, wherein the bronze value B, which is calculated from tristimulus values of reflected light, of illumination in the direction of an angle of 45 degrees to a normal to the image, in the direction of specular reflection and tristimulus values of illumination light under the same condition of the illumination by using Formula 1, with respect to a predetermined recorded image recorded by the above-described ink is 2.0 or less.Type: GrantFiled: January 27, 2011Date of Patent: January 6, 2015Assignee: Canon Kabushiki KaishaInventors: Hiromitsu Kishi, Fumiaki Fujioka, Hirofumi Ichinose, Rie Takekoshi, Takumi Kaneko, Yumi Kamimura, Kazuki Narumi, Akihiro Kakinuma
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Patent number: 8651606Abstract: An inkjet printing apparatus and an inkjet printing method are provided which can correct, with high precision, print position deviations among a plurality of printing element arrays in each of a plurality of print modes that use different groups of printing elements in each printing element array. The adjustment values for the print position deviations between the first and second printing element arrays are differentiated between the high-speed mode and the high-quality mode. In the high-speed mode, all printing elements in the first and second printing element arrays are used. In the high-quality mode, a part of the printing elements in each of the first and second printing element arrays are used. Based on these adjustment values, the ink ejection timings of the first and second printing element arrays are adjusted.Type: GrantFiled: January 21, 2011Date of Patent: February 18, 2014Assignee: Canon Kabushiki KaishaInventors: Akihiro Kakinuma, Akihiro Tomida, Naoki Uchida, Keita Tamiya
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Patent number: 8646861Abstract: The optimal number of print passes and a head-to-platen distance are set according to a content of an image to be printed and the user's request (emphasis is put on quality or speed, etc.) to thereby appropriately meet the needs for higher image quality and higher productivity and to perform printing with high reliability. To this end, it is made possible to select whether to execute processing for issuing an instruction to set the number of print passes and the head-to-platen distance according to discrimination of the content of the image. When the execution of the processing is selected, the number of print passes and the head-to-platen distance are appropriately set according to the content of the image (duty, etc.). Meanwhile, when it is not selected, the image is printed by one-pass print with the head-to-platen distance set larger, regardless of the content of the image.Type: GrantFiled: July 10, 2008Date of Patent: February 11, 2014Assignee: Canon Kabushiki KaishaInventors: Mitsutoshi Nagamura, Akihiro Kakinuma, Daigoro Kanematsu, Naoko Baba, Asako Watanabe, Akihiro Tomida
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Patent number: 8608277Abstract: Multiple alignment patterns, each composed of first and second alignment pattern elements printed by forward and backward movements of a print head, respectively, are formed while the relative printing positions of the two elements are shifted. From optical characteristics data thereof, whether the data is influenced by a disturbance is determined. When the data is determined to be less influenced by the disturbance and therefore to be reliable, an adjusting value for aligning positions in printing in reciprocal movements is calculated by use of: data with the smallest relative printing position misalignment between the first and second alignment pattern elements; and data of optical characteristics close to the data. When the data is largely influence by the disturbance, a range of shifting of relative position is widened than that of the data less influenced by the disturbance so that more data pieces are used to obtain the adjusting value.Type: GrantFiled: September 23, 2011Date of Patent: December 17, 2013Assignee: Canon Kabushiki KaishaInventors: Akihiro Tomida, Akihiro Kakinuma, Daigoro Kanematsu, Naoko Baba, Mitsutoshi Nagamura, Asako Watanabe, Reiji Hashimoto, Yoshinori Nakajima
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Patent number: 8556362Abstract: When recording is performed by causing a recording head to scan a unit region of a recording medium multiple times, values related to the respective amounts of inks of multiple colors to be ejected to each of sub-regions obtained by dividing the unit region in the scanning direction are obtained. On the basis of values related to the respective amounts of the inks of multiple colors for a sub-region of interest and neighboring sub-regions adjacent to the sub-region of interest, the number of scans for the unit region including the sub-region of interest is determined.Type: GrantFiled: December 3, 2010Date of Patent: October 15, 2013Assignee: Canon Kabushiki KaishaInventors: Mitsutoshi Nagamura, Akihiro Kakinuma, Eiji Komamiya, Akihiro Tomida
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Publication number: 20130249980Abstract: The optimal number of print passes and a head-to-platen distance are set according to a content of an image to be printed and the user's request (emphasis is put on quality or speed, etc.) to thereby appropriately meet the needs for higher image quality and higher productivity and to perform printing with high reliability. To this end, it is made possible to select whether to execute processing for issuing an instruction to set the number of print passes and the head-to-platen distance according to discrimination of the content of the image. When the execution of the processing is selected, the number of print passes and the head-to-platen distance are appropriately set according to the content of the image (duty, etc.). Meanwhile, when it is not selected, the image is printed by one-pass print with the head-to-platen distance set larger, regardless of the content of the image.Type: ApplicationFiled: March 15, 2013Publication date: September 26, 2013Applicant: CANON KABUSHIKI KAISHAInventors: MITSUTOSHI NAGAMURA, AKIHIRO KAKINUMA, DAIGORO KANEMATSU, NAOKO BABA, ASAKO TOMIDA, AKIHIRO TOMIDA