Patents by Inventor Takayuki OZASA

Takayuki OZASA 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
  • 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
  • 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
  • Publication number: 20190206060
    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: Application
    Filed: September 20, 2018
    Publication date: July 4, 2019
    Applicant: DENSO TEN Limited
    Inventors: Takeo MATSUMOTO, Kohji OHNISHI, Naoshi KAKITA, Takayuki OZASA, Tomoyuki FUJIMOTO, Teruhiko KAMIBAYASHI
  • Patent number: 10328856
    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: April 5, 2016
    Date of Patent: June 25, 2019
    Assignee: DENSO TEN Limited
    Inventors: Takayuki Ozasa, Teruhiko Kamibayashi, Kohji Ohnishi, Takeo Matsumoto, Tomoyuki Fujimoto, Daisuke Yamamoto
  • Publication number: 20180361934
    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: Application
    Filed: August 24, 2018
    Publication date: December 20, 2018
    Applicant: DENSO TEN Limited
    Inventors: Takayuki OZASA, Teruhiko KAMIBAYASHI, Kohji OHNISHI, Takeo MATSUMOTO, Tomoyuki FUJIMOTO, Daisuke YAMAMOTO
  • Patent number: 10086760
    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: April 5, 2016
    Date of Patent: October 2, 2018
    Assignee: DENSO TEN Limited
    Inventors: Takayuki Ozasa, Teruhiko Kamibayashi, Kohji Ohnishi, Takeo Matsumoto, Tomoyuki Fujimoto, Daisuke Yamamoto
  • Publication number: 20180176504
    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: Application
    Filed: November 30, 2017
    Publication date: June 21, 2018
    Applicant: DENSO TEN Limited
    Inventors: Takeo MATSUMOTO, Kohji OHNISHI, Takayuki OZASA, Tomoyuki FUJIMOTO, Teruhiko KAMIBAYASHI
  • Patent number: 9747664
    Abstract: An image processing apparatus includes: an image processor which: receives a captured-image from an image acquisition part acquiring the captured-image from a camera that captures an image of a vicinity of a vehicle; project data of the captured-image onto a virtual projection plane provided in the vicinity of the vehicle; and correct deformation of the captured-image caused by projection of the captured-image onto the virtual projection plane. In a case of presence of a command indicative of enlarging a portion of the captured-image, the image processor corrects the deformation of the captured-image by using a greater correction amount than that used in a case of absence of the input of the command indicative of enlarging the portion of the captured-image. Accordingly, in a case where a portion of an image of a vicinity of a vehicle is enlarged, deterioration of image quality can be suppressed as much as possible.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: August 29, 2017
    Assignee: FUJITSU TEN LIMITED
    Inventors: Naoshi Kakita, Atsushi Mino, Takayuki Ozasa
  • Publication number: 20160311372
    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: Application
    Filed: April 5, 2016
    Publication date: October 27, 2016
    Applicant: FUJITSU TEN LIMITED
    Inventors: Takayuki OZASA, Teruhiko KAMIBAYASHI, Kohji OHNISHI, Takeo MATSUMOTO, Tomoyuki FUJIMOTO, Daisuke YAMAMOTO
  • Publication number: 20160063333
    Abstract: An image processing apparatus includes: an image processor which: receives a captured-image from an image acquisition part acquiring the captured-image from a camera that captures an image of a vicinity of a vehicle; project data of the captured-image onto a virtual projection plane provided in the vicinity of the vehicle; and correct deformation of the captured-image caused by projection of the captured-image onto the virtual projection plane. In a case of presence of a command indicative of enlarging a portion of the captured-image, the image processor corrects the deformation of the captured-image by using a greater correction amount than that used in a case of absence of the input of the command indicative of enlarging the portion of the captured-image. Accordingly, in a case where a portion of an image of a vicinity of a vehicle is enlarged, deterioration of image quality can be suppressed as much as possible.
    Type: Application
    Filed: August 4, 2015
    Publication date: March 3, 2016
    Inventors: Naoshi KAKITA, Atsushi MINO, Takayuki OZASA