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).
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Publication number: 20240104759Abstract: An information processing device includes a controller configured to execute a posture estimation processing by extracting a pair group of line segments based on an optical flow of a feature point on a road surface from a processing target region set in a camera image captured by an in-vehicle camera and by estimating a posture of the in-vehicle camera based on an angle estimation value at which the in-vehicle camera is attached, the angle estimation value being estimated from each pair data included in the pair group. The controller is configured to determine that an attachment state of the in-vehicle camera is abnormal in response to at least one of a data accumulation number of the pair data, a standard deviation of the angle estimation value, or a deviation amount from a given calibration value relating to the posture in the posture estimation processing being out of a preset range.Type: ApplicationFiled: March 20, 2023Publication date: March 28, 2024Applicant: DENSO TEN LimitedInventors: Koji OHNISHI, Naoshi KAKITA, Takayuki OZASA
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Publication number: 20240062551Abstract: An information processing apparatus according to an embodiment includes a controller. The controller is configured to estimate an attitude of an onboard camera, sequentially perform a first calibration process and a second calibration process of the onboard camera, and change a detection accuracy of an image recognition process of a captured image captured by the onboard camera depending on completion statuses of the first calibration process and the second calibration process.Type: ApplicationFiled: March 17, 2023Publication date: February 22, 2024Applicant: DENSO TEN LimitedInventors: Koji OHNISHI, Naoshi KAKITA, Takayuki OZASA
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Publication number: 20240062420Abstract: An information processing device includes: a controller configured to execute a posture estimation processing by estimating a posture of an in-vehicle camera based on an optical flow of a feature point in a processing target region set in a camera image captured by the in-vehicle camera. The controller is configured to set a position of the processing target region in a vertical direction based on a horizontal line position which is a position of a horizontal line derived from a point where two parallel lines intersect with each other in a real space observed in the camera image, an attachment height of the in-vehicle camera, and a horizontal line deviation amount which is a deviation amount between the horizontal line position and an optical axis center of the in-vehicle camera.Type: ApplicationFiled: March 20, 2023Publication date: February 22, 2024Applicant: DENSO TEN LimitedInventors: Naoshi KAKITA, Koji OHNISHI, Takayuki OZASA
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Publication number: 20230351631Abstract: An information processing apparatus according to the embodiment includes a control unit (corresponding to an example of a “controller”). The control unit performs attitude estimation processing to estimate the attitude of an onboard camera based on optical flows of feature points in a region of interest set in an image captured by the onboard camera. When the onboard camera is mounted in a first state, the control unit performs first attitude estimation processing using a first region of interest set in a rectangular shape, and, when the onboard camera is mounted in a second state, the control unit performs second attitude estimation processing using a second region of interest set in accordance with the shape of a road surface.Type: ApplicationFiled: September 12, 2022Publication date: November 2, 2023Applicant: DENSO TEN LimitedInventors: Naoshi KAKITA, Koji OHNISHI, Takayuki OZASA
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Patent number: 10750166Abstract: 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: GrantFiled: August 30, 2019Date of Patent: August 18, 2020Assignee: DENSO TEN LimitedInventors: Naoshi Kakita, Kohji Ohnishi, Takayuki Ozasa, Teruhiko Kamibayashi
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Patent number: 10657654Abstract: 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: GrantFiled: September 20, 2018Date of Patent: May 19, 2020Assignee: DENSO TEN LimitedInventors: Takeo Matsumoto, Kohji Ohnishi, Naoshi Kakita, Takayuki Ozasa, Tomoyuki Fujimoto, Teruhiko Kamibayashi
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Patent number: 10647255Abstract: 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: GrantFiled: August 24, 2018Date of Patent: May 12, 2020Assignee: DENSO TEN LimitedInventors: Takayuki Ozasa, Teruhiko Kamibayashi, Kohji Ohnishi, Takeo Matsumoto, Tomoyuki Fujimoto, Daisuke Yamamoto
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Publication number: 20200120331Abstract: 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: ApplicationFiled: August 30, 2019Publication date: April 16, 2020Applicant: DENSO TEN LimitedInventors: Naoshi KAKITA, Kohji OHNISHI, Takayuki OZASA, Teruhiko KAMIBAYASHI
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Publication number: 20200090347Abstract: 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: ApplicationFiled: August 30, 2019Publication date: March 19, 2020Applicant: DENSO TEN LimitedInventors: Takayuki OZASA, Kohji OHNISHI, Naoshi KAKITA, Teruhiko KAMIBAYASHI
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Publication number: 20190325607Abstract: 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: ApplicationFiled: February 7, 2019Publication date: October 24, 2019Applicant: DENSO TEN LimitedInventors: Kohji OHNISHI, Naoshi KAKITA, Takayuki OZASA, Takeo MATSUMOTO, Teruhiko KAMIBAYASHI
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Publication number: 20190325585Abstract: 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: ApplicationFiled: February 13, 2019Publication date: October 24, 2019Applicant: DENSO TEN LimitedInventors: Naoshi KAKITA, Kohji OHNISHI, Takayuki OZASA, Takeo MATSUMOTO, Teruhiko KAMIBAYASHI
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Patent number: 10440317Abstract: 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: GrantFiled: November 30, 2017Date of Patent: October 8, 2019Assignee: DENSO TEN LimitedInventors: Takeo Matsumoto, Kohji Ohnishi, Takayuki Ozasa, Tomoyuki Fujimoto, Teruhiko Kamibayashi
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Publication number: 20190206060Abstract: 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: ApplicationFiled: September 20, 2018Publication date: July 4, 2019Applicant: DENSO TEN LimitedInventors: Takeo MATSUMOTO, Kohji OHNISHI, Naoshi KAKITA, Takayuki OZASA, Tomoyuki FUJIMOTO, Teruhiko KAMIBAYASHI
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Patent number: 10328856Abstract: 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: GrantFiled: April 5, 2016Date of Patent: June 25, 2019Assignee: DENSO TEN LimitedInventors: Takayuki Ozasa, Teruhiko Kamibayashi, Kohji Ohnishi, Takeo Matsumoto, Tomoyuki Fujimoto, Daisuke Yamamoto
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Publication number: 20180361934Abstract: 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: ApplicationFiled: August 24, 2018Publication date: December 20, 2018Applicant: DENSO TEN LimitedInventors: Takayuki OZASA, Teruhiko KAMIBAYASHI, Kohji OHNISHI, Takeo MATSUMOTO, Tomoyuki FUJIMOTO, Daisuke YAMAMOTO
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Patent number: 10086760Abstract: 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: GrantFiled: April 5, 2016Date of Patent: October 2, 2018Assignee: DENSO TEN LimitedInventors: Takayuki Ozasa, Teruhiko Kamibayashi, Kohji Ohnishi, Takeo Matsumoto, Tomoyuki Fujimoto, Daisuke Yamamoto
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Publication number: 20180176504Abstract: 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: ApplicationFiled: November 30, 2017Publication date: June 21, 2018Applicant: DENSO TEN LimitedInventors: Takeo MATSUMOTO, Kohji OHNISHI, Takayuki OZASA, Tomoyuki FUJIMOTO, Teruhiko KAMIBAYASHI
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Patent number: 9747664Abstract: 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: GrantFiled: August 4, 2015Date of Patent: August 29, 2017Assignee: FUJITSU TEN LIMITEDInventors: Naoshi Kakita, Atsushi Mino, Takayuki Ozasa
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Publication number: 20160311372Abstract: 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: ApplicationFiled: April 5, 2016Publication date: October 27, 2016Applicant: FUJITSU TEN LIMITEDInventors: Takayuki OZASA, Teruhiko KAMIBAYASHI, Kohji OHNISHI, Takeo MATSUMOTO, Tomoyuki FUJIMOTO, Daisuke YAMAMOTO
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Publication number: 20160063333Abstract: 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: ApplicationFiled: August 4, 2015Publication date: March 3, 2016Inventors: Naoshi KAKITA, Atsushi MINO, Takayuki OZASA