Patents by Inventor Naoshi Kakita

Naoshi Kakita 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
  • 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: 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
  • 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: 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: 10325161
    Abstract: There is provided a vehicle state determining device. An extracting unit is configured to extract feature points from images acquired by an imaging device mounted on a vehicle. An estimating unit is configured to estimate the movement amount of the vehicle at each time set at intervals of a predetermined time, on the basis of the feature points extracted by the extracting unit. A determining unit is configured to perform determination on movement of the vehicle on the basis of the movement amount estimated by the estimating unit, and the change amount of the movement amount.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: June 18, 2019
    Assignee: FUJITSU TEN Limited
    Inventors: Yuuki Matsumoto, Atsushi Mino, Naoshi Kakita
  • Patent number: 10127702
    Abstract: There is provided an image processing device. An object detecting unit is configured to detect objects from each frame image sequentially input from an imaging device. A selecting unit is configured to select objects positioned at the lowest portions, from the objects included in a plurality of individual segment areas constituting the frame image and existing side by side in a left-right direction. A highlighting-image generating unit is configured to generate highlighting images for highlighting the objects selected by the selecting unit.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: November 13, 2018
    Assignee: FUJITSU TEN LIMITED
    Inventors: Yuuki Matsumoto, Atsushi Mino, Naoshi Kakita
  • Patent number: 10025999
    Abstract: An obstacle detection apparatus according to an embodiment includes an on-vehicle camera (image capturing unit), an estimation unit, and a determination unit. The on-vehicle camera is provided on a vehicle and captures an image of surroundings of the vehicle. The estimation unit estimates an existence region with an obstacle existing therein in an image captured by the image capturing unit. The determination unit determines presence or absence of the obstacle based on brightness of the existence region.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: July 17, 2018
    Assignee: FUJITSU TEN LIMITED
    Inventors: Yasushi Tani, Jyunji Hashimoto, Tomohide Kasame, Naoshi Kakita
  • Patent number: 9990534
    Abstract: There is provided an image processing device. A feature point acquiring unit acquires a plurality of feature points of objects of each frame image. A grouping unit performs a grouping process of dividing the feature points into groups corresponding to the individual objects. A masking unit performs a masking process of excluding feature points included in some areas of the frame image. A highlighting-image generating unit generates highlighting images for highlighting objects of the frame image corresponding to the feature point groups. A superimposed-image generating unit superimposes the highlighting images on the frame image, thereby generating a superimposed image.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: June 5, 2018
    Assignee: FUJITSU TEN LIMITED
    Inventors: Naoshi Kakita, Atsushi Mino, Yuuki Matsumoto
  • Patent number: 9827906
    Abstract: An image processing apparatus that processes an image includes: an image acquisition portion that acquires a captured image from an imaging apparatus which captures an image of a vicinity of a vehicle; and an image generator that generates a display image in which a support image for supporting driving is superimposed on the acquired captured image captured by the imaging apparatus, the image generator being configured to (i) make a determination as to whether the vehicle is in a stopped state or a moving state, and (ii) select a type of the support image to be superimposed on the acquired captured image in the display image based on the determination as to whether the vehicle is in the stopped state or the moving state.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: November 28, 2017
    Assignee: FUJITSU TEN LIMITED
    Inventors: Yuuki Matsumoto, Atsushi Mino, Naoshi Kakita
  • Publication number: 20170259830
    Abstract: A moving amount derivation apparatus derives a moving amount of a host apparatus that includes the moving amount derivation apparatus. The moving amount derivation apparatus includes: an image acquisition part that acquires a series of photographic images from a photographing apparatus that the host apparatus includes and that moves with the host apparatus; and an image processor coupled to the image acquisition part. The image processor is configured to: (i) derive a moving vector of a photographed object within the series of the photographic images, using a plurality of the photographic images out of the series of the photographic images, the plurality of the photographic images having been photographed at different time points; and (ii) derive the moving amount of the host apparatus based on the moving vector.
    Type: Application
    Filed: May 31, 2017
    Publication date: September 14, 2017
    Applicant: FUJITSU TEN LIMITED
    Inventors: Atsushi MINO, Yuuki MATSUMOTO, Naoshi KAKITA
  • 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: 20170116743
    Abstract: There is provided an image processing device. An object detecting unit is configured to detect objects from each frame image sequentially input from an imaging device. A selecting unit is configured to select objects positioned at the lowest portions, from the objects included in a plurality of individual segment areas constituting the frame image and existing side by side in a left-right direction. A highlighting-image generating unit is configured to generate highlighting images for highlighting the objects selected by the selecting unit.
    Type: Application
    Filed: September 9, 2016
    Publication date: April 27, 2017
    Applicant: FUJITSU TEN LIMITED
    Inventors: Yuuki MATSUMOTO, Atsushi MINO, Naoshi KAKITA
  • Publication number: 20170116461
    Abstract: There is provided an image processing device. A feature point acquiring unit acquires a plurality of feature points of objects of each frame image. A grouping unit performs a grouping process of dividing the feature points into groups corresponding to the individual objects. A masking unit performs a masking process of excluding feature points included in some areas of the frame image. A highlighting-image generating unit generates highlighting images for highlighting objects of the frame image corresponding to the feature point groups. A superimposed-image generating unit superimposes the highlighting images on the frame image, thereby generating a superimposed image.
    Type: Application
    Filed: September 7, 2016
    Publication date: April 27, 2017
    Applicant: FUJITSU TEN LIMITED
    Inventors: Naoshi KAKITA, Atsushi MINO, Yuuki MATSUMOTO
  • Publication number: 20170116486
    Abstract: There is provided a vehicle state determining device. An extracting unit is configured to extract feature points from images acquired by an imaging device mounted on a vehicle. An estimating unit is configured to estimate the movement amount of the vehicle at each time set at intervals of a predetermined time, on the basis of the feature points extracted by the extracting unit. A determining unit is configured to perform determination on movement of the vehicle on the basis of the movement amount estimated by the estimating unit, and the change amount of the movement amount.
    Type: Application
    Filed: September 7, 2016
    Publication date: April 27, 2017
    Applicant: FUJITSU TEN LIMITED
    Inventors: Yuuki MATSUMOTO, Atsushi MINO, Naoshi KAKITA
  • Publication number: 20160259983
    Abstract: An obstacle detection apparatus according to an embodiment includes an on-vehicle camera (image capturing unit), an estimation unit, and a determination unit. The on-vehicle camera is provided on a vehicle and captures an image of surroundings of the vehicle. The estimation unit estimates an existence region with an obstacle existing therein in an image captured by the image capturing unit. The determination unit determines presence or absence of the obstacle based on brightness of the existence region.
    Type: Application
    Filed: January 29, 2016
    Publication date: September 8, 2016
    Applicant: FUJITSU TEN LIMITED
    Inventors: Yasushi TANI, Jyunji HASHIMOTO, Tomohide KASAME, Naoshi KAKITA
  • 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
  • Publication number: 20160021313
    Abstract: An image processing apparatus that processes an image includes: an image acquisition portion that acquires a captured image from an imaging apparatus which captures an image of a vicinity of a vehicle; and an image generator that generates a display image in which a support image for supporting driving is superimposed on the acquired captured image captured by the imaging apparatus, the image generator being configured to (i) make a determination as to whether the vehicle is in a stopped state or a moving state, and (ii) select a type of the support image to be superimposed on the acquired captured image in the display image based on the determination as to whether the vehicle is in the stopped state or the moving state.
    Type: Application
    Filed: July 7, 2015
    Publication date: January 21, 2016
    Applicant: FUJITSU TEN LIMITED
    Inventors: Yuuki MATSUMOTO, Atsushi MINO, Naoshi KAKITA