Patents by Inventor Nobuhisa Ikeda

Nobuhisa Ikeda 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: 10789502
    Abstract: An extraneous-matter detecting apparatus according to an embodiment includes a first extraction unit, a second extraction unit, and a detection unit. The first extraction extracts a first pixel group of first pixels included in a captured image captured by an image capturing device. Each of the first pixels has a luminance gradient directed outward from a predetermined center region. The second extraction unit extracts a second pixel group of second pixels included in the captured image. Each of the second pixels has a luminance gradient directed inward toward the predetermined center region. The detection unit combines the first pixel group, extracted by the first extraction unit, and the second pixel group, extracted by the second extraction unit, with each other so as to detect an extraneous matter adhered to the image capturing device.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: September 29, 2020
    Assignee: DENSO TEN Limited
    Inventors: Nobunori Asayama, Daisuke Yamamoto, Nobuhisa Ikeda, Takashi Kono
  • Patent number: 10748028
    Abstract: An extraneous-matter detecting apparatus including a dividing unit that divides a captured image into a plurality of regions. The captured image is output from an image capturing device; a computing unit detecting luminance values of pixels included in each of the regions divided by the dividing unit, and computes, for each of target regions, an average value or a standard deviation of luminance values of the detected luminance values. The corresponding target region corresponds to the one or more regions; and a detection unit that extracts the target regions having the average values or the standard deviations of the luminance values computed by the computing unit, which are within a predetermined range, and detects, when the extracted target regions are adjacent to each other, the adjacent target regions as an extraneous-matter region. The extraneous-matter region is a region of the image capturing device to which an extraneous matter is adhered.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: August 18, 2020
    Assignee: DENSO TEN LIMITED
    Inventors: Nobuhisa Ikeda, Nobunori Asayama, Daisuke Yamamoto, Takashi Kono
  • Patent number: 10735667
    Abstract: When each of a right IR projector and a left IR projector has been set to an IR OFF state and a final radiation ON condition becomes satisfied, a PVM-ECU sets each of the right IR projector and the left IR projector to an IR ON state. When each of the right IR projector and the left IR projector has been set to the IR ON state and a final radiation ON condition becomes satisfied, the PVM-ECU sets each of the right IR projector and the left IR projector to the IR ON state.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: August 4, 2020
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO TEN LIMITED
    Inventors: Yusuke Kida, Nobuhisa Ikeda
  • Publication number: 20200244864
    Abstract: When each of a right IR projector and a left IR projector has been set to an IR OFF state and a final radiation ON condition becomes satisfied, a PVM-ECU sets each of the right IR projector and the left IR projector to an IR ON state. When each of the right IR projector and the left IR projector has been set to the IR ON state and a final radiation ON condition becomes satisfied, the PVM-ECU sets each of the right IR projector and the left IR projector to the IR ON state.
    Type: Application
    Filed: December 13, 2019
    Publication date: July 30, 2020
    Inventors: Yusuke KIDA, Nobuhisa IKEDA
  • Publication number: 20200219222
    Abstract: An attached substance detection device according to an embodiment includes a calculation unit and a determination unit. The calculation unit calculates a score of a divided region that is provided by dividing a predetermined target region, based on an edge intensity in each pixel region of a captured image that is captured by an image-capturing device. The determination unit determines whether or not the target region is an attached substance region where an attached substance is attached to a lens of the image-capturing device, based on the score that is calculated by the calculation unit.
    Type: Application
    Filed: September 9, 2019
    Publication date: July 9, 2020
    Applicant: DENSO TEN Limited
    Inventors: Nobuhisa IKEDA, Nobunori ASAYAMA, Takashi KONO, Yasushi TANI, Daisuke YAMAMOTO, Tomokazu OKI, Teruhiko KAMIBAYASHI
  • Publication number: 20200219280
    Abstract: A decision part decides a representative edge direction using a predetermined angle range as a unit for each pixel area of a plurality of pixel areas of a photographic image photographed by a camera based on an edge angle of each pixel contained in the pixel area. An extractor extracts two of the pixel areas that are adjacent to each other as a pair area among the pixel areas of the photographic image, when the two pixel areas that are adjacent to each other have opposite representative edge directions. A determination part determines whether or not there is an attachable matter on a lens of the camera based on at least one of (1) a number of the pair areas extracted by the extractor and (2) a total sum of edge intensities of the pixel areas contained in the pair areas.
    Type: Application
    Filed: December 5, 2019
    Publication date: July 9, 2020
    Applicant: DENSO TEN Limited
    Inventors: Nobuhisa IKEDA, Nobunori ASAYAMA, Takashi KONO, Yasushi TANI, Daisuke YAMAMOTO, Tomokazu OKI, Teruhiko KAMIBAYASHI
  • Publication number: 20200211194
    Abstract: An attached object detection apparatus includes: an extractor that extracts, based on edges detected from pixels of a captured image captured by an image capturing apparatus, a candidate region for an attached object region corresponding to an attached object on the image capturing apparatus; and a determiner that determines, based on a fluctuation of luminance distribution of pixels within the candidate region extracted by the extractor, whether or not the candidate region is the attached object region.
    Type: Application
    Filed: September 25, 2019
    Publication date: July 2, 2020
    Applicant: DENSO TEN Limited
    Inventors: Nobuhisa IKEDA, Nobunori ASAYAMA, Takashi KONO, Yasushi TANI, Daisuke YAMAMOTO, Tomokazu OKI, Teruhiko KAMIBAYASHI
  • Publication number: 20200210749
    Abstract: An extraneous-matter detecting apparatus according to an embodiment includes a region setting unit, a computing unit, and a state setting unit. The region setting unit sets, for a captured image captured by an image capturing device provided in a vehicle, a plurality of divided regions. The computing unit computes a representative value of luminance in a target region for detecting an adhesion of an extraneous matter. The target region includes the plurality of divided regions. The state setting unit sets, based on a vehicle speed and the representative value of luminance in the target region, a transition state of information that indicates an adhesion state of an extraneous matter in the divided region.
    Type: Application
    Filed: September 11, 2019
    Publication date: July 2, 2020
    Applicant: DENSO TEN Limited
    Inventors: Nobuhisa IKEDA, Nobunori ASAYAMA, Takashi KONO, Yasushi TANI, Daisuke YAMAMOTO, Tomokazu OKI, Teruhiko KAMIBAYASHI
  • Publication number: 20200210723
    Abstract: An attached object detection apparatus includes a setting part, a calculator, and a detector. A setting part sets a plurality of divided regions within a captured image captured by an image capturing apparatus. A calculator calculates, for each of the plurality of divided regions and based on luminance of pixels in the divided region, a representative luminance value and an amount of luminance dispersion. A detector detects, as an attached region that has an attached object, a divided region among the plurality of divided regions that satisfies the following conditions: i) a first difference is equal to or smaller than a first predetermined difference, ii) a second difference is equal to or smaller than a second predetermined difference, and iii) the representative luminance value of the current divided region is equal to or smaller than a first predetermined value.
    Type: Application
    Filed: August 30, 2019
    Publication date: July 2, 2020
    Applicant: DENSO TEN Limited
    Inventors: Nobuhisa IKEDA, Nobunori ASAYAMA, Takashi KONO, Yasushi TANI, Daisuke YAMAMOTO, Tomokazu OKI, Teruhiko KAMIBAYASHI
  • Publication number: 20200211195
    Abstract: An attached object detection apparatus includes a memory and a controller coupled to the memory. The controller is configured to: extract one or more candidate regions from a captured image captured by an image capturing apparatus, each of the one or more candidate regions being a candidate for being an attached object region corresponding to a portion of the image in which an attached object is attached to the image capturing apparatus, the one or more candidate regions being extracted based on edges detected from pixels of the image; select, as one or more selection regions, one or more of the candidate regions satisfying predetermined selection conditions, from amongst the extracted one or more candidate regions; and determine, based on fluctuation of luminance distribution of pixels in the selected one or more selection regions, whether or not each of the one or more selection regions is the attached object region.
    Type: Application
    Filed: November 21, 2019
    Publication date: July 2, 2020
    Applicant: DENSO TEN Limited
    Inventors: Nobuhisa IKEDA, Nobunori ASAYAMA, Takashi KONO, Yasushi TANI, Daisuke YAMAMOTO, Tomokazu OKI, Teruhiko KAMIBAYASHI
  • Publication number: 20200210747
    Abstract: An adhering substance detection apparatus according to an embodiment includes a calculating unit and a determining unit. The calculating unit calculates, for each cell composed of a predetermined number of pixels in a captured image, an edge feature value that is based on edge vectors in the pixels, and that classifies an edge orientation that is included in the edge feature value, into two types of angle classes. The determining unit determines a condition of adhering substance adhering to an image capturing apparatus that captured the captured image, based on a transition count representing number of transitions the angle class goes through within a unit region that is a predetermined region composed of a predetermined number of the cells.
    Type: Application
    Filed: September 5, 2019
    Publication date: July 2, 2020
    Applicant: DENSO TEN Limited
    Inventors: Nobuhisa IKEDA, Nobunori ASAYAMA, Takashi KONO, Yasushi TANI, Daisuke YAMAMOTO, Tomokazu OKI, Teruhiko KAMIBAYASHI
  • Publication number: 20200210740
    Abstract: An attachable matter detection apparatus includes a controller configured to function as an extractor and a detector. The extractor extracts edge information of each pixel contained in a photographic image photographed by an imaging device. The detector detects a candidate area estimated to have a water droplet out of the photographic image based on a matching result between (i) each of the pixels converted into a predetermined data format based on the edge information extracted by the extractor and (ii) a template representing a water droplet and having the data format. The detector calculates a matching frequency with the template for a predetermined area along a contour of the candidate area, and excludes the candidate area when the candidate area satisfies a predetermined exclusion condition based on the matching frequency.
    Type: Application
    Filed: November 14, 2019
    Publication date: July 2, 2020
    Applicant: DENSO TEN Limited
    Inventors: Nobuhisa IKEDA, Nobunori ASAYAMA, Takashi KONO, Yasushi TANI, Daisuke YAMAMOTO, Tomokazu OKI, Teruhiko KAMIBAYASHI
  • Publication number: 20200211171
    Abstract: An adhered substance detection apparatus includes a controller configured to function as a determination part, an extractor, and a detector. The determination part determines a representative edge direction using a predetermined angle range as a unit for each pixel area of a plurality of pixel areas of a photographic image photographed by a photographing device, the representative edge direction being determined for each of the pixel areas based on an edge angle of each pixel included in the pixel area. The extractor extracts an array pattern in which a plurality of the pixel areas having a same representative edge direction are continuously arranged along a predetermined scanning direction based on the representative edge directions of the pixel areas determined by the determination part. The detector detects whether an adhered substance area exists on a lens of the photographing device based on the array pattern extracted by the extractor.
    Type: Application
    Filed: October 31, 2019
    Publication date: July 2, 2020
    Applicant: DENSO TEN Limited
    Inventors: Nobuhisa IKEDA, Nobunori ASAYAMA, Takashi KONO, Yasushi TANI, Daisuke YAMAMOTO, Tomokazu OKI, Teruhiko KAMIBAYASHI
  • Publication number: 20200210751
    Abstract: An extraneous-matter detecting apparatus includes a region setting unit, a computing unit, a change-value setting unit, an updating unit, and a detection unit. The region setting unit sets divided regions for a captured image captured by an image capturing device. The computing unit computes, for a corresponding divided region, a first difference between a past representative value of luminance and a present representative value of luminance and a second difference between a past dispersion amount of luminance and a present dispersion amount of luminance. The change-value setting unit sets, based on the first and the second differences, a change value of a counter value that indicates an adhesion state of an extraneous matter in the divided region. The updating unit updates the counter value based on the change value. The detection unit detects, based on the counter value, an adhesion state of an extraneous matter in the divided region.
    Type: Application
    Filed: September 10, 2019
    Publication date: July 2, 2020
    Applicant: DENSO TEN Limited
    Inventors: Nobuhisa IKEDA, Nobunori ASAYAMA, Takashi KONO, Yasushi TANI, Daisuke YAMAMOTO, Tomokazu OKI, Teruhiko KAMIBAYASHI
  • Publication number: 20200210750
    Abstract: An adhering substance detection apparatus includes calculating, first and second detecting, and generating units. The calculating unit calculates a variation in a feature value related to luminance in past and current captured images captured by an image capturing device, based on the luminance of pixels included in the captured images. The first detecting unit detects a first region in which the variation calculated by the calculating unit falls within a threshold range, and the feature value in the current captured image falls within a threshold range. The second detecting unit detects a second region in which an irregularity in a distribution of the luminance of the pixels included in the captured image satisfies a predetermined irregularity condition. The generating unit generates a sum region being a sum of the first and second regions, as an adhering substance region corresponding to an adhering substance adhering to the image capturing device.
    Type: Application
    Filed: September 6, 2019
    Publication date: July 2, 2020
    Applicant: DENSO TEN Limited
    Inventors: Nobuhisa IKEDA, Nobunori ASAYAMA, Takashi KONO, Yasushi TANI, Daisuke YAMAMOTO, Tomokazu OKI, Teruhiko KAMIBAYASHI
  • Patent number: 10552706
    Abstract: An attachable matter detection apparatus according to an embodiment includes an acquirement unit, a creation unit, and a determination unit. The acquirement unit acquires a determination target area of an attachable matter from a photographic image. The creation unit creates histograms of at least an edge intensity, luminance, and saturation for the determination target area acquired by the acquirement unit. The determination unit determines whether or not the attachable matter exists in the determination target area on the basis of a ratio of frequency of each grade in each of the histograms created by the creation unit.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: February 4, 2020
    Assignee: FUJITSU TEN LIMITED
    Inventors: Nobuhisa Ikeda, Takashi Kono, Nobunori Asayama, Daisuke Yamamoto, Yasushi Tani, Junji Hashimoto
  • Publication number: 20190228254
    Abstract: An extraneous-matter detecting apparatus according to an embodiment includes a first extraction unit, a second extraction unit, and a detection unit. The first extraction extracts a first pixel group of first pixels included in a captured image captured by an image capturing device. Each of the first pixels has a luminance gradient directed outward from a predetermined center region. The second extraction unit extracts a second pixel group of second pixels included in the captured image. Each of the second pixels has a luminance gradient directed inward toward the predetermined center region. The detection unit combines the first pixel group, extracted by the first extraction unit, and the second pixel group, extracted by the second extraction unit, with each other so as to detect an extraneous matter adhered to the image capturing device.
    Type: Application
    Filed: December 12, 2018
    Publication date: July 25, 2019
    Applicant: DENSO TEN Limited
    Inventors: Nobunori ASAYAMA, Daisuke YAMAMOTO, Nobuhisa IKEDA, Takashi KONO
  • Publication number: 20180314907
    Abstract: An extraneous-matter detecting apparatus including a dividing unit that divides a captured image into a plurality of regions. The captured image is output from an image capturing device; a computing unit detecting luminance values of pixels included in each of the regions divided by the dividing unit, and computes, for each of target regions, an average value or a standard deviation of luminance values of the detected luminance values. The corresponding target region corresponds to the one or more regions; and a detection unit that extracts the target regions having the average values or the standard deviations of the luminance values computed by the computing unit, which are within a predetermined range, and detects, when the extracted target regions are adjacent to each other, the adjacent target regions as an extraneous-matter region. The extraneous-matter region is a region of the image capturing device to which an extraneous matter is adhered.
    Type: Application
    Filed: March 14, 2018
    Publication date: November 1, 2018
    Applicant: DENSO TEN Limited
    Inventors: Nobuhisa Ikeda, Nobunori Asayama, Daisuke Yamamoto, Takashi Kono
  • Publication number: 20180248208
    Abstract: A control device of fuel cell system includes an anode gas circulation flow rate control unit configured to control the anode gas circulation flow rate on the basis of the wet/dry state of the electrolyte membrane detected by the wet/dry state detecting unit, a priority setting unit configured to set priority levels of a normal manipulation to a plurality of physical quantities manipulated by the wet/dry state control unit, and the anode gas circulation flow rate control unit includes an anode gas circulation flow rate limiting unit configured to limit a change rate per unit time of the anode gas circulation flow rate during a transient operation for changing the wet/dry state of the electrolyte membrane, and a control quantity compensating unit configured to, if the change rate is limited, compensate an insufficiency in a control quantity of the wet/dry state due to the limitation of the anode gas circulation flow rate, the compensation being carried out by manipulating a physical quantity with a lower prior
    Type: Application
    Filed: September 11, 2015
    Publication date: August 30, 2018
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Tetsuya AOKI, Nobuhisa IKEDA, Toshikazu KOTAKA, Daigo IWASAKI
  • Publication number: 20180201231
    Abstract: There is provided a foreign substance removal control device including: an image recognizer having a processor and that detects foreign substance stuck on a lens of a camera based on an image captured by the camera; an injector that injects air or liquid to the lens of the camera; an output portion that outputs information to a user; and a controller that controls a foreign substance removal process for removing the foreign substance from the lens of the camera by causing the injector to inject the air or the liquid if the image recognizer detects the foreign substance stuck on the lens of the camera, in which the controller causes the output portion to output information which indicates that the foreign substance is stuck on the lens of the camera if the image recognizer detects the foreign substance stuck on the lens of the camera after the foreign substance removal process has been performed.
    Type: Application
    Filed: January 17, 2018
    Publication date: July 19, 2018
    Applicant: DENSO TEN Limited
    Inventors: Yasushi TANI, Junji HASHIMOTO, Tomohide KASAME, Teruhiko KAMIBAYASHI, Nobunori ASAYAMA, Nobuhisa IKEDA, Takashi KONO