Patents by Inventor Yuuichi NONAKA

Yuuichi NONAKA 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).

  • Patent number: 11182635
    Abstract: A personal information separation unit separates a document image containing personal information into a personal information image containing the personal information and a general information image that does not contain the personal information on the basis of the document image, and transmits the general information image to a cloud server. A recognition result integration unit receives a general recognition result that is the recognition result of the character recognition processing for the general information image from the cloud server, and acquires a target recognition result that is the recognition result of the character recognition processing for the document image in accordance with the general recognition result and the information based on the personal information image.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: November 23, 2021
    Assignee: HITACHI, LTD.
    Inventors: Ryosuke Odate, Hiroshi Shinjo, Yuuichi Nonaka
  • Publication number: 20210295182
    Abstract: A machine learning system determines whether an influence which exclusion and addition of evaluation target data from and to learning data has on the performance of a machine learning model includes: an acquisition unit that acquires an initial data group used to learn a learning model, evaluation target data added to, or excluded from, the initial data group, and a verification data group including at least one element which is not included in the evaluation target data; and a contribution degree calculation unit that calculates a contribution degree for evaluating an influence which the evaluation target data has on performance of the learning model, on the basis of an output value by the learning model for which the verification data group is input, and an output value by a relearning model which is learned by adding or excluding the evaluation target data to or from the initial data group.
    Type: Application
    Filed: September 11, 2020
    Publication date: September 23, 2021
    Applicant: HITACHI, LTD.
    Inventors: Naoyuki TERASHITA, Kenta TAKANOHASHI, Yuuichi NONAKA
  • Patent number: 10928518
    Abstract: It is possible to generate a range image with higher accuracy. A range image generation apparatus includes: a light emitting unit that emits light toward an object at different light emission intensities; a light receiving unit that captures an image of the object by receiving light including reflected light from the object and calculates a light exposure amount for each pixel; and a range calculating unit that calculates a range to the object by replacing a light exposure amount at a first light emission intensity by a light exposure amount at a second light emission intensity in a predetermined case and generates a range image.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: February 23, 2021
    Assignee: HITACHI-LG DATA STORAGE, INC.
    Inventors: Daisuke Yoshida, Yuuichi Nonaka
  • Publication number: 20200387733
    Abstract: A personal information separation unit separates a document image containing personal information into a personal information image containing the personal information and a general information image that does not contain the personal information on the basis of the document image, and transmits the general information image to a cloud server. A recognition result integration unit receives a general recognition result that is the recognition result of the character recognition processing for the general information image from the cloud server, and acquires a target recognition result that is the recognition result of the character recognition processing for the document image in accordance with the general recognition result and the information based on the personal information image.
    Type: Application
    Filed: March 9, 2020
    Publication date: December 10, 2020
    Inventors: Ryosuke ODATE, Hiroshi SHINJO, Yuuichi NONAKA
  • Patent number: 10489921
    Abstract: Provided is a technology for preventing a frame-out of a person from an image acquired through a camera in a behavior analysis technology using the acquired image. A behavior analysis apparatus includes: an image acquisition unit; a person image extraction unit; a person skeleton detection unit; a person behavior analysis unit; a frame-out determination unit configured to determine a frame-out of the person toward an outside of the predetermined field angle as to one of whether or not the frame-out has occurred and whether or not the frame-out is predictable through use of any one of the person image area and the person skeleton; and a frame-out notification unit configured to notify the person of the determination in one of a case where the frame-out has occurred and a case where the frame-out is predictable.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: November 26, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Toshio Kamimura, Yuuichi Nonaka, Akinobu Watanabe, Yasuyuki Mimatsu
  • Patent number: 10419692
    Abstract: In an image pickup apparatus having an image pickup unit, a color difference signal, which is generated from signals obtained from the visible light pixels and including the near-infrared light region, and a color difference signal, which is generated by removing the signals of the near-infrared light region, are combined, at a combination ratio that is in accordance with a saturation degree of the signal components of the visible light region, and then outputted. In this way, the hue can be reproduced with colors close to colors viewed by a person. A similar processing may be performed for the brightness signals. If the color difference signal generated by removing the signals of the near-infrared light region exhibits, for example, a negative value, then the signals of the near-infrared light region may be added again.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: September 17, 2019
    Assignee: Maxell, Ltd.
    Inventors: Junji Shiokawa, Yuuichi Nonaka, Mina Ootsubo, Satoshi Nozawa
  • Publication number: 20190129034
    Abstract: It is possible to generate a range image with higher accuracy. A range image generation apparatus includes: a light emitting unit that emits light toward an object at different light emission intensities; a light receiving unit that captures an image of the object by receiving light including reflected light from the object and calculates a light exposure amount for each pixel; and a range calculating unit that calculates a range to the object by replacing a light exposure amount at a first light emission intensity by a light exposure amount at a second light emission intensity in a predetermined case and generates a range image.
    Type: Application
    Filed: April 19, 2016
    Publication date: May 2, 2019
    Applicant: HITACHI-LG DATA STORAGE, INC.
    Inventors: Daisuke YOSHIDA, Yuuichi NONAKA
  • Patent number: 10165242
    Abstract: Provided is an image-capturing device including: a visible light signal generating unit that extracts a visible light signal from a pixel signal from an image-capturing element; a light source color estimating unit that estimates a color temperature of a light source from the visible light signal; a white-balance adjusting unit that performs white balance correction on the visible light signal according to an estimation result; a non-visible light signal generating unit that extracts a non-visible light signal from the signals from the image-capturing element; and an image composing unit that combines and outputs the visible light signal on which the white balance correction was performed and the non-visible light signal.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: December 25, 2018
    Assignee: Hitachi Industry & Control Solutions, Ltd.
    Inventors: Yuuichi Nonaka, Shinichiro Hirooka
  • Patent number: 10154208
    Abstract: The imaging device is characterized by comprising an image sensor comprising pixels with sensitivity to the visible range and near infrared range and pixels with sensitivity to the near infrared range, a color reproduction processing unit that performs color reproduction processing using signals from the pixels with sensitivity to the visible range and near infrared range and signals from the pixels with sensitivity to the near infrared range among the output signals of the image sensor, a visible light amount calculating unit that calculates the signal quantity in the visible range using the output signal of the image sensor, and a control unit that controls the color reproduction processing unit so that the color reproduction processing is performed on the basis of the signal quantity in the visible range calculated by the visible light amount calculating unit.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: December 11, 2018
    Assignee: Maxell, Ltd.
    Inventors: Tomokazu Ishihara, Yuuichi Nonaka, Akihito Nishizawa, Junji Shiokawa
  • Publication number: 20180174307
    Abstract: To simultaneously figure out information on a motion of the whole body of a subject and information on a small motion of a certain part of the subject by using range images obtained by imaging the subject, an image processing apparatus is configured to obtain first part information from a first range image obtained by imaging a first area of the subject. Second part information is obtained from a second range image of a second smaller area of the subject. A transformation function that performs coordinate transformation between a first coordinate system in the first part information and a second coordinate system in the second part information, and generates combined part information based on the transformation function, such that the combined part information is information representing the first part information and the second part information in the common coordinate system.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 21, 2018
    Applicant: HITACHI-LG DATA STORAGE, INC.
    Inventors: Yuuichi NONAKA, Akinobu WATANABE, Toshio KAMIMURA, Yasuyuki MIMATSU
  • Publication number: 20180144482
    Abstract: Provided is a technology for preventing a frame-out of a person from an image acquired through a camera in a behavior analysis technology using the acquired image. A behavior analysis apparatus includes: an image acquisition unit; a person image extraction unit; a person skeleton detection unit; a person behavior analysis unit; a frame-out determination unit configured to determine a frame-out of the person toward an outside of the predetermined field angle as to one of whether or not the frame-out has occurred and whether or not the frame-out is predictable through use of any one of the person image area and the person skeleton; and a frame-out notification unit configured to notify the person of the determination in one of a case where the frame-out has occurred and a case where the frame-out is predictable.
    Type: Application
    Filed: March 30, 2017
    Publication date: May 24, 2018
    Inventors: Toshio KAMIMURA, Yuuichi NONAKA, Akinobu WATANABE, Yasuyuki MIMATSU
  • Publication number: 20160182837
    Abstract: In an image pickup apparatus having an image pickup unit, a color difference signal, which is generated from signals obtained from the visible light pixels and including the near-infrared light region, and a color difference signal, which is generated by removing the signals of the near-infrared light region, are combined, at a combination ratio that is in accordance with a saturation degree of the signal components of the visible light region, and then outputted. In this way, the hue can be reproduced with colors close to colors viewed by a person. A similar processing may be performed for the brightness signals. If the color difference signal generated by removing the signals of the near-infrared light region exhibits, for example, a negative value, then the signals of the near-infrared light region may be added again.
    Type: Application
    Filed: July 25, 2013
    Publication date: June 23, 2016
    Inventors: Junji SHIOKAWA, Yuuichi NONAKA, Mina OOTSUBO, Satoshi NOZAWA
  • Publication number: 20160173790
    Abstract: The imaging device is characterized by comprising an image sensor comprising pixels with sensitivity to the visible range and near infrared range and pixels with sensitivity to the near infrared range, a color reproduction processing unit that performs color reproduction processing using signals from the pixels with sensitivity to the visible range and near infrared range and signals from the pixels with sensitivity to the near infrared range among the output signals of the image sensor, a visible light amount calculating unit that calculates the signal quantity in the visible range using the output signal of the image sensor, and a control unit that controls the color reproduction processing unit so that the color reproduction processing is performed on the basis of the signal quantity in the visible range calculated by the visible light amount calculating unit.
    Type: Application
    Filed: July 31, 2013
    Publication date: June 16, 2016
    Inventors: Tomokazu ISHIHARA, Yuuichi NONAKA, Akihito NISHIZAWA, Junji SHIOKAWA
  • Publication number: 20160065926
    Abstract: Provided is an image-capturing device including: a visible light signal generating unit that extracts a visible light signal from a pixel signal from an image-capturing element; a light source color estimating unit that estimates a color temperature of a light source from the visible light signal; a white-balance adjusting unit that performs white balance correction on the visible light signal according to an estimation result; a non-visible light signal generating unit that extracts a non-visible light signal from the signals from the image-capturing element; and an image composing unit that combines and outputs the visible light signal on which the white balance correction was performed and the non-visible light signal.
    Type: Application
    Filed: July 22, 2015
    Publication date: March 3, 2016
    Inventors: Yuuichi NONAKA, Shinichiro HIROOKA
  • Publication number: 20160065865
    Abstract: The imaging device includes an imaging unit that acquires a visible light signal and an invisible light signal by imaging a subject, a first luminance generation unit that generates a visible light luminance signal by using the visible light signal output from the imaging unit, a second luminance generation unit that generates an invisible light luminance signal by using the invisible light signal output from the imaging unit, an image correction processing unit that performs a correction process by using the visible light luminance signal generated by the first luminance generation unit and the invisible light luminance signal generated by the second luminance generation unit, and a control unit that controls at least the image correction processing unit; and the image correction processing unit performs the correction process by adding a correction signal, which is generated using the invisible light luminance signal, to the visible light signal.
    Type: Application
    Filed: April 4, 2014
    Publication date: March 3, 2016
    Inventors: Junji SHIOKAWA, Yuuichi NONAKA, Takeru KISANUKI, Akihito NISHIZAWA