Patents by Inventor Yuto KOMATSU
Yuto KOMATSU 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: 20230297611Abstract: Information that matches personal hobbies, tastes, and trends is provided. An information search device comprises: an information acquisition unit that acquires sensor information; an information verbalization unit that verbalizes the sensor information acquired by the information acquisition unit; a general knowledge database storing language information and various information in association with each other; and a search unit that searches the general knowledge database on the basis of language information verbalized by the information verbalization unit, and outputs various information associated with the language information and with language information similar to such language information.Type: ApplicationFiled: April 21, 2021Publication date: September 21, 2023Applicant: HITACHI, LTD.Inventors: Kentaroh SANO, Atsushi MAKI, Yuto KOMATSU, Azusa AMINO, Zhuonan YAO, Sachi TANAKA, Akiyoshi OOHIRA
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Patent number: 11744486Abstract: A biometric system includes: a camera that captures a subject; a pressure information collection unit that detects a pressure value of at least one sole of the subject; a skeleton direction vector calculation unit that calculates a skeleton direction vector of the subject captured by the camera; a floor reaction force vector calculation unit that calculates a floor reaction force vector on a basis of information on pressure from the pressure information collection unit; and an analysis result output unit that displays, in a superimposing manner, the skeleton direction vector calculated by the skeleton direction vector calculation unit and the floor reaction force vector calculated by the floor reaction force vector calculation unit.Type: GrantFiled: October 19, 2020Date of Patent: September 5, 2023Assignees: Hiroshima University, Hitachi, Ltd.Inventors: Ayako Nishimura, Hirokazu Atsumori, Tsukasa Funane, Akihiko Kandori, Yasuaki Nakamura, Akiko Obata, Yuto Komatsu, Seiji Hama, Toshio Tsuji
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Patent number: 11701011Abstract: Provided is a biological information detection device including: an image acquisition unit that acquires an image composed of image signals including a plurality of wavelength components obtained by capturing reflected light from an object; a region division unit that divides the image into a plurality of regions for each frame; a local pulse wave detection unit that detects a pulse wave based on wavelength fluctuation between frames for each of the regions; and a blood pressure estimation unit that calculates propagation velocity of the pulse wave based on an appearance time difference of patterns of the pulse waves in two or more regions extracted based on an appearance order of the patterns of the pulse waves in the plurality of regions, and estimates a blood pressure based on the propagation velocity of the pulse wave.Type: GrantFiled: August 27, 2020Date of Patent: July 18, 2023Assignee: HITACHI, LTD.Inventors: Nobuhiro Fukuda, Yuichi Nonaka, Yuto Komatsu, Charles Limasanches, Takashi Numata, Hironori Wakana, Masashi Kiguchi
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Publication number: 20220067428Abstract: A learning model to be used for a new task is selected from among trained learning models. A processor acquires information on a detail of a new task and extracts a new characteristic amount vector from a new training data set for the new task. The processor references stored related information on a plurality of existing learning models and acquires information on details of tasks of the plurality of existing learning models and characteristic amount vectors of training data for the plurality of existing learning models. The processor selects a candidate learning model for the new task from among the plurality of existing learning models based on a result of comparing information on the detail of the new task with the tasks of the plurality of existing learning models and a result of comparing the new characteristic amount vector with characteristic amount vectors of the plurality of existing learning models.Type: ApplicationFiled: August 19, 2021Publication date: March 3, 2022Inventors: Charles LIMASANCHES, Yuichi NONAKA, Takashi KANEMARU, Yuto KOMATSU
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Patent number: 11244552Abstract: A watching system, which calculates a fall probability of an imaged person to be fallen using a computer which includes a processor and a memory, includes a trunk extraction unit that receives time-series skeleton information of the imaged person, calculates an angle between a head and a waist of the imaged person based on the skeleton information, extracts the angle as a trunk of the imaged person, calculates the center of the trunk as a trunk center based on trunk information set in advance, extracts a trunk to be reference as a reference trunk from a time-series trunk calculated from the time-series skeleton information, and holds a center of the reference trunk, and a fall probability calculation unit that calculates a distance between a trunk center of the reference trunk and a trunk center of the trunk as a deviation amount, and calculates the fall probability from the deviation amount.Type: GrantFiled: August 7, 2020Date of Patent: February 8, 2022Assignee: HITACHI, LTDInventors: Yuto Komatsu, Hirokazu Atsumori, Tsukasa Funane, Akiko Obata, Akihiko Kandori
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Publication number: 20210121100Abstract: A biometric system includes: a camera that captures a subject; a pressure information collection unit that detects a pressure value of at least one sole of the subject; a skeleton direction vector calculation unit that calculates a skeleton direction vector of the subject captured by the camera; a floor reaction force vector calculation unit that calculates a floor reaction force vector on a basis of information on pressure from the pressure information collection unit; and an analysis result output unit that displays, in a superimposing manner, the skeleton direction vector calculated by the skeleton direction vector calculation unit and the floor reaction force vector calculated by the floor reaction force vector calculation unit.Type: ApplicationFiled: October 19, 2020Publication date: April 29, 2021Inventors: Ayako NISHIMURA, Hirokazu ATSUMORI, Tsukasa FUNANE, Akihiko KANDORI, Yasuaki NAKAMURA, Akiko OBATA, Yuto KOMATSU, Seiji HAMA, Toshio TSUJI
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Publication number: 20210085196Abstract: Provided is a biological information detection device including: an image acquisition unit that acquires an image composed of image signals including a plurality of wavelength components obtained by capturing reflected light from an object; a region division unit that divides the image into a plurality of regions for each frame; a local pulse wave detection unit that detects a pulse wave based on wavelength fluctuation between frames for each of the regions; and a blood pressure estimation unit that calculates propagation velocity of the pulse wave based on an appearance time difference of patterns of the pulse waves in two or more regions extracted based on an appearance order of the patterns of the pulse waves in the plurality of regions, and estimates a blood pressure based on the propagation velocity of the pulse wave.Type: ApplicationFiled: August 27, 2020Publication date: March 25, 2021Applicant: HITACHI, LTD.Inventors: Nobuhiro FUKUDA, Yuichi NONAKA, Yuto KOMATSU, Charles LIMASANCHES, Takashi NUMATA, Hironori WAKANA, Masashi KIGUCHI
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Publication number: 20210090460Abstract: An information processing system visualizes brain states to optimize rehabilitation programs for rapid feedback of their effects to a patient and healthcare staff, to thereby promote the efficiency of rehabilitation. An embodiment of the system includes: a storage section that stores test-result brain-state relationship information associating results of activities of multiple examinees subjected to predetermined tests with brain states of the examinees; an input section that accepts a first test result as the result of the activity of a first examinee subjected to the predetermined tests; a control section that estimates the brain state from the first test result on the basis of the test-result brain-state relationship information; and an output section that outputs the estimated brain state.Type: ApplicationFiled: July 22, 2020Publication date: March 25, 2021Inventors: Tsukasa FUNANE, Hirokazu ATSUMORI, Akihiko KANDORI, Akiko OBATA, Ayako NISHIMURA, Yuto KOMATSU, Takashi NUMATA, Seiji HAMA, Toshio TSUJI
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Publication number: 20210082270Abstract: A watching system, which calculates a fall probability of an imaged person to be fallen using a computer which includes a processor and a memory, includes a trunk extraction unit that receives time-series skeleton information of the imaged person, calculates an angle between a head and a waist of the imaged person based on the skeleton information, extracts the angle as a trunk of the imaged person, calculates the center of the trunk as a trunk center based on trunk information set in advance, extracts a trunk to be reference as a reference trunk from a time-series trunk calculated from the time-series skeleton information, and holds a center of the reference trunk, and a fall probability calculation unit that calculates a distance between a trunk center of the reference trunk and a trunk center of the trunk as a deviation amount, and calculates the fall probability from the deviation amount.Type: ApplicationFiled: August 7, 2020Publication date: March 18, 2021Applicant: HITACHI, LTD.Inventors: Yuto KOMATSU, Hirokazu ATSUMORI, Tsukasa FUNANE, Akiko OBATA, Akihiko KANDORI
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Patent number: 10621421Abstract: A computer system that performs in dialogue with a user and provides a prescribed service, comprising: an imaging device; a computer; and a generation device generating dialogue content on a basis of an algorithm for generating dialogue content. The computer couples to a database that stores an authentication image used for an authentication process that uses an image. The computer calculates a distance between the user and the imaging device; executes an attribute estimation process in a case where the distance is larger than a threshold, selects the algorithm on the basis of results of the attribute estimation process, and issues a notification of the selected algorithm to the generation device.Type: GrantFiled: June 7, 2018Date of Patent: April 14, 2020Assignee: Hitachi, Ltd.Inventors: Yuto Komatsu, Yoshitaka Hiramatsu
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Publication number: 20190005311Abstract: A computer system that performs in dialogue with a user and provides a prescribed service, comprising: an imaging device; a computer; and a generation device generating dialogue content on a basis of an algorithm for generating dialogue content. The computer couples to a database that stores an authentication image used for an authentication process that uses an image. The computer calculates a distance between the user and the imaging device; executes an attribute estimation process in a case where the distance is larger than a threshold, selects the algorithm on the basis of results of the attribute estimation process, and issues a notification of the selected algorithm to the generation device.Type: ApplicationFiled: June 7, 2018Publication date: January 3, 2019Inventors: Yuto KOMATSU, Yoshitaka HIRAMATSU
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Patent number: 9189680Abstract: It is provided an authentication system, comprising: a reader for obtaining identification information assigned to an identification device held by a subject; an authentication device for authenticating the identification information obtained by the reader; a camera for photographing a facial image of the subject; and a management device which is coupled to a terminal for issuing an alarm and which includes an image database in which the facial image photographed by the camera is accumulated, in which the management device is configured to: search the image database by using information obtained by at least one of the reader and the camera on an occasion of the authentication; determine a reliability of the authentication based on a result of analyzing the retrieved facial image; and transmit data for issuing the alarm to the terminal in a case where it is determined that the reliability is low.Type: GrantFiled: September 13, 2012Date of Patent: November 17, 2015Assignee: Hitachi Information & Telecommunication Engineering, Ltd.Inventors: Yuto Komatsu, Tomoaki Yoshinaga, Satoshi Someya, Hiroto Nagayoshi, Daisuke Matsubara
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Patent number: 8948257Abstract: A technique for improving a compression rate without needing new determination information (encoding flag information) is provided. For compression of each area to be encoded, based on a skip mode (a process which does not compress information of the area to be encoded, but copies previous information of the area to be encoded), it is determined whether an existing predicted image generated by an existing encoding standard is used, or an interpolation predicted image newly generated by executing move searching between decoded images is used.Type: GrantFiled: September 30, 2010Date of Patent: February 3, 2015Assignee: Hitachi Maxell, Ltd.Inventors: Yuto Komatsu, Toru Yokoyama, Tomokazu Murakami, Shohei Saito, Katsuyuki Nakamura
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Patent number: 8711936Abstract: A motion picture recording apparatus that includes a similar-motion-area setup unit which sets up blocks having a similar motion vector as a similar motion area, the similar motion vector being included in motion vectors calculated by a block-based motion search unit. The recording apparatus also includes a representative-motion-vector calculation unit which calculates a representative motion vector by use of a motion vector provided by each block included in the similar motion area. The recording apparatus further includes a selection unit which selects either the representative motion vector or the motion vector provided by each block, which is to be used for each block in the similar motion area. The recording apparatus also includes an encoder which performs coding processing using the selected motion vector and a prediction picture, for each block in the similar motion area.Type: GrantFiled: April 23, 2008Date of Patent: April 29, 2014Assignee: Hitachi Consumer Electronics Co., Ltd.Inventors: Hiroaki Ito, Tomokazu Murakami, Isao Karube, Masashi Takahashi, Yuto Komatsu
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Publication number: 20130063581Abstract: It is provided an authentication system, comprising: a reader for obtaining identification information assigned to an identification device held by a subject; an authentication device for authenticating the identification information obtained by the reader; a camera for photographing a facial image of the subject; and a management device which is coupled to a terminal for issuing an alarm and which includes an image database in which the facial image photographed by the camera is accumulated, in which the management device is configured to: search the image database by using information obtained by at least one of the reader and the camera on an occasion of the authentication; determine a reliability of the authentication based on a result of analyzing the retrieved facial image; and transmit data for issuing the alarm to the terminal in a case where it is determined that the reliability is low.Type: ApplicationFiled: September 13, 2012Publication date: March 14, 2013Inventors: YUTO KOMATSU, Tomoaki Yoshinaga, Satoshi Someya, Hiroto Nagayoshi, Daisuke Matsubara
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Publication number: 20110142127Abstract: Disclosed is an image processing technique which more suitably reduces flicker noise. An image display device is comprised of an input unit which inputs encoded image data containing images encoded by intraframe prediction and interframe prediction, an image decoder which decodes the encoded image data, a filter unit which filters the decoded images output from the image decoder, and a display unit which displays the image after filtering. The filter unit performs at least a process to correct the pixel values in a decoded image decoded by interframe prediction immediately preceding in time a decoded image decoded by intraframe prediction of the decoded images output from the image decoder.Type: ApplicationFiled: May 12, 2009Publication date: June 16, 2011Applicant: HITACHI CONSUMER ELECTRONICS CO., LTD.Inventors: Hiroaki Ito, Isao Karube, Masashi Takahashi, Yuto Komatsu
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Publication number: 20110080951Abstract: A technique for improving a compression rate without needing new determination information (encoding flag information) is provided. For compression of each area to be encoded, based on a skip mode (a process which does not compress information of the area to be encoded, but copies previous information of the area to be encoded), it is determined whether an existing predicted image generated by an existing encoding standard is used, or an interpolation predicted image newly generated by executing move searching between decoded images is used.Type: ApplicationFiled: September 30, 2010Publication date: April 7, 2011Applicant: Hitachi Consumer Electronics Co., Ltd.Inventors: Yuto KOMATSU, Toru YOKOYAMA, Tomokazu MURAKAMI, Shohei SAITO, Katsuyuki NAKAMURA