Patents by Inventor Teruhiko Kamibayashi

Teruhiko Kamibayashi 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: 10750166
    Abstract: An abnormality detection apparatus for detecting an abnormality of a camera to be mounted on a mobile body includes a processor and associated memory configured to perform a determination process of determining a presence or absence of the abnormality of the camera based on a temporal change of a position of a feature point that is extracted from a frame image photographed by the camera and suppress a gain change in an Automatic Gain Control (“AGC”) circuit of the camera when the determination process is performed.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: August 18, 2020
    Assignee: DENSO TEN Limited
    Inventors: Naoshi Kakita, Kohji Ohnishi, Takayuki Ozasa, 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: 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: 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: 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: 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: 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
  • 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: 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: 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: 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: 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
  • Patent number: 10657654
    Abstract: An abnormality detection device includes: an estimator which estimates the amount of movement of a mobile body based on an image taken by a camera mounted on the mobile body; and a determiner which determines an abnormality in the camera by obtaining estimated information on the amount of movement of the mobile body as obtained in the estimator and actually observed information on the movement of the mobile body as detected by an external sensor, other than the camera, mounted on the mobile body.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: May 19, 2020
    Assignee: DENSO TEN Limited
    Inventors: Takeo Matsumoto, Kohji Ohnishi, Naoshi Kakita, Takayuki Ozasa, Tomoyuki Fujimoto, Teruhiko Kamibayashi
  • Patent number: 10647255
    Abstract: An image processing device according to an aspect of the embodiment includes an image generating unit that generates an image at a virtual viewpoint based on a captured image of an image capturing unit, and an image processing unit that generates an image in which an image for synthesis is displayed on the image at the virtual viewpoint. The image processing unit performs a process for decreasing visibility of the image for synthesis when the image at the virtual viewpoint is an image at a viewpoint location of the virtual viewpoint while the viewpoint location is moving.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: May 12, 2020
    Assignee: DENSO TEN Limited
    Inventors: Takayuki Ozasa, Teruhiko Kamibayashi, Kohji Ohnishi, Takeo Matsumoto, Tomoyuki Fujimoto, Daisuke Yamamoto
  • Patent number: 10635923
    Abstract: An image processing apparatus includes a detector, an estimator and a determiner. The detector detects a candidate region of a captured image captured by a camera, the candidate region serving as a candidate for a water drop region affected by a water drop on the lens of the camera, based on an edge strength of each pixel in the captured image. The estimator estimates, based on the candidate region, a circle that includes the candidate region. The determiner determines whether or not the candidate region is part of the water drop region based on the edge strength of some of the pixels in the circle.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: April 28, 2020
    Assignee: FUJITSU TEN LIMITED
    Inventors: Yasushi Tani, Takashi Kono, Junji Hashimoto, Tomohide Kasame, Teruhiko Kamibayashi, Hiroki Murasumi
  • Publication number: 20200120331
    Abstract: An abnormality detection apparatus for detecting an abnormality of a camera to be mounted on a mobile body includes a processor and associated memory configured to perform a determination process of determining a presence or absence of the abnormality of the camera based on a temporal change of a position of a feature point that is extracted from a frame image photographed by the camera and suppress a gain change in an Automatic Gain Control (“AGC”) circuit of the camera when the determination process is performed.
    Type: Application
    Filed: August 30, 2019
    Publication date: April 16, 2020
    Applicant: DENSO TEN Limited
    Inventors: Naoshi KAKITA, Kohji OHNISHI, Takayuki OZASA, Teruhiko KAMIBAYASHI
  • Publication number: 20200090347
    Abstract: An apparatus for calculating an estimation value of movement information of a mobile body based on information from a camera mounted on the mobile body. The apparatus includes an extractor that extracts feature points from frame images input from the camera, a calculator that calculates an optical flow indicating movements of the feature points between a current frame image and a previous frame image, and an estimator that calculates the estimation value based on the optical flow. The estimator switches a calculation method of the estimation value based on at least one of (i) a speed of the mobile body, (ii) a number of the feature points extracted by the extractor, and (iii) feature amounts indicating uniqueness of the feature points.
    Type: Application
    Filed: August 30, 2019
    Publication date: March 19, 2020
    Applicant: DENSO TEN Limited
    Inventors: Takayuki OZASA, Kohji OHNISHI, Naoshi KAKITA, Teruhiko KAMIBAYASHI
  • Publication number: 20190325607
    Abstract: A movement information estimation device estimates movement information on a mobile body based on information from a camera mounted on the mobile body. The movement information estimation device includes a feature point extractor configured to extract a feature point from a predetermined region in an image taken by the camera, and a movement information estimator configured to estimate movement information on the mobile body based on the feature point.
    Type: Application
    Filed: February 7, 2019
    Publication date: October 24, 2019
    Applicant: DENSO TEN Limited
    Inventors: Kohji OHNISHI, Naoshi KAKITA, Takayuki OZASA, Takeo MATSUMOTO, Teruhiko KAMIBAYASHI
  • Publication number: 20190325585
    Abstract: A movement information estimation device which estimates movement information on a mobile body based on information from a camera mounted on the mobile body includes a flow deriver configured to derive an optical flow for each feature point based on an image taken by the camera and a movement information estimator configured to estimate movement information on the mobile body based on optical flows derived by the flow deriver. The movement information estimator is configured to estimate movement information on the mobile body after exclusion processing for excluding an optical flow arising from a shadow of the mobile body.
    Type: Application
    Filed: February 13, 2019
    Publication date: October 24, 2019
    Applicant: DENSO TEN Limited
    Inventors: Naoshi KAKITA, Kohji OHNISHI, Takayuki OZASA, Takeo MATSUMOTO, Teruhiko KAMIBAYASHI
  • Patent number: 10440317
    Abstract: A video processing device generates a display video signal to be supplied to a liquid crystal display unit that is driven by a frame inversion scheme. The video processing device includes a controller and a video signal processor. The controller controls a vertical synchronizing signal included in an interlace video signal input from outside the video processing device so that a display invalid section having a predetermined number of fields is set for the interlace video signal at a predetermined period. The video signal processor i) generates the display video signal based on the interlace video signal in which the display invalid section has been set by control of the vertical synchronizing signal and ii) outputs the display video signal to the liquid crystal display unit.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: October 8, 2019
    Assignee: DENSO TEN Limited
    Inventors: Takeo Matsumoto, Kohji Ohnishi, Takayuki Ozasa, Tomoyuki Fujimoto, Teruhiko Kamibayashi