Patents by Inventor Yuji Otsuka

Yuji Otsuka 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: 10360436
    Abstract: Provided is an object detection device capable of reliably recognizing a vehicle. This object detection device detects multiple three-dimensional objects from a left image and a right image captured with a left imaging unit and a right imaging unit (S103), extracts, as combination candidates from among the multiple three-dimensional objects, two three-dimensional objects which exist with an interval to the left/right, and determines whether a sparse parallax region, which is a region having a smaller parallax density than left/right regions, exists in an intermediate region between the two three-dimensional objects extracted as combination candidates.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: July 23, 2019
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Takuma Osato, Masayuki Takemura, Yuji Otsuka, Takeshi Nagasaki
  • Patent number: 10297155
    Abstract: Provided is an object detector capable of suppressing any decrease in accuracy of object detection under a low illuminance environment such as nighttime or in tunnels, whereby suppressing a failure of Adaptive Cruise Control, pre-crash safety systems, and the like. The object detector includes: a distance information calculation unit 105 configured to calculate distance information to an object around a vehicle from an image captured by a plurality of imaging units 102, 103; an extraction unit 106 configured to extract at least an object existing in a long distance region away from the vehicle and having a specific color from among objects in the image based on the distance information; and an output unit 108 configured to output the distance information to the object having been extracted by the extraction unit 106.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: May 21, 2019
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventor: Yuji Otsuka
  • Patent number: 10140717
    Abstract: In order to provide an imaging apparatus which minimizes erroneous recognition of a moving body and prevent a braking operation from being erroneously performed, even if the moving body is likely to cross a road, the imaging apparatus includes a correlation value calculation unit that calculates a correlation value from two images captured by two imaging units, a three-dimensional object detection unit that detects a three-dimensional object from the two images, a region dividing unit that divides an image region including the three-dimensional object into multiple regions, a relative speed calculation unit that calculates relative speed for every region of the multiple regions, and a reliability calculation unit that calculates reliability of the three-dimensional object, based on the relative speed calculated for every region.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: November 27, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Haruki Matono, Mirai Higuchi, Yuji Otsuka
  • Patent number: 10140526
    Abstract: The purpose of the present invention is to provide an object detecting device which is capable of accurately detecting an object even far away, and of shortening processing time. Provided is an object detecting device (100), comprising: a disparity acquisition unit (116) which compares each image of two cameras (112, 113) and computes a disparity for each pixel; a near-far boundary setting unit (118) which, in a single image of one of the two cameras, sets a boundary (Rb) between a near region (R1) which is close to a vehicle (110) and a far region (R2) which is distant from the vehicle (110); a near object detecting unit (119) which detects objects (102, 104) of the near region (R1) on the basis of the disparity; and a far object detecting unit (120) which detects objects (103, 104) of the far region (R2) on the basis of the single image.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: November 27, 2018
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Shinji Kakegawa, Takeshi Shima, Yuji Otsuka
  • Patent number: 10109463
    Abstract: A microwave automatic matcher includes a movable body, a driving unit, a matching control unit, a reflection coefficient measuring unit, and a setting unit. The matching control unit consecutively moves the movable body from a start position in one direction by a distance of a difference between the start position and the target position in a matching operation carried out for the plasma process and then variably controls the position of the movable body until the measurement of the reflection coefficient obtained by the reflection coefficient measuring unit falls within the first neighboring range by monitoring the measurement of the reflection coefficient.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: October 23, 2018
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Kazushi Kaneko, Hideo Kato, Kazunori Funazaki, Yuji Otsuka, Shinji Kawada
  • Patent number: 10078880
    Abstract: The present invention provides CPU load reduction and a method of efficient image data transfer. An image processing device, which comprises an image generating unit (203) which further comprises a plurality of processing units which process a plurality of instances of image information and in where the image generating unit (203) transfers accumulated data for each interrupt factor, comprises: data transfer units for each factor (208-212) which accept the interrupts from the image generating unit (203) for each interrupt factor and transfer the data for each interrupt factor, and notifies a CPU (207) of the interrupt when the transfer of the data to be transferred for each interrupt factor is completed; and a communication line (1) which is connected to the image generating unit (203) and the data transfer units for each factor (208-212).
    Type: Grant
    Filed: May 26, 2014
    Date of Patent: September 18, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Haruki Matono, Yuji Otsuka, Atsushi Ichige, Yoshiyuki Muto, Takeshi Shima
  • Publication number: 20180238899
    Abstract: Provided is a glucose derivative, which is taken into cells via a membrane sugar transport system and is represented by formula (1). Also provided are an imaging agent and an imaging method for a cell or intracellular molecule using said glucose derivative. Further provided is a method for detecting cancer cells with good accuracy using said glucose derivative and an imaging agent to be used in said method. More specifically provided are D-glucose derivatives and L-glucose derivatives in which glucose is bound to the 7-position of a fluorescent molecular group with a coumarin backbone or a quinolone backbone. Also provided are a cell imaging agent and imaging method using the derivative. A cancer cell imaging agent and imaging method using the L-glucose derivative is also provided. G is a group selected from formulas (G1)-(G4) below.
    Type: Application
    Filed: April 19, 2018
    Publication date: August 23, 2018
    Applicant: HIROSAKI UNIVERSITY
    Inventors: Katsuya YAMADA, Ayako SASAKI, Tadashi TESHIMA, Toshihiro YAMAMOTO, Yuji OTSUKA
  • Patent number: 10001487
    Abstract: Provided is a glucose derivative, which is taken into cells via a membrane sugar transport system and is represented by formula (1). Also provided are an imaging agent and an imaging method for a cell or intracellular molecule using said glucose derivative. Further provided are a method for detecting cancer cells with good accuracy using said glucose derivative and an imaging agent to be used in said method. More specifically provided are D-glucose derivatives and L-glucose derivatives in which glucose is bound to the 7-position of a fluorescent molecular group with a coumarin backbone or a quinolone backbone. Also provided are a cell imaging agent and imaging method using the derivative. A cancer cell imaging agent and imaging method using the L-glucose derivative is also provided. G is a group selected from formulas (G1)-(G4) below.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: June 19, 2018
    Assignee: HIROSAKI UNIVERSITY
    Inventors: Katsuya Yamada, Ayako Sasaki, Tadashi Teshima, Toshihiro Yamamoto, Yuji Otsuka
  • Publication number: 20180137339
    Abstract: Provided is an object detection device capable of reliably recognizing a vehicle. This object detection device detects multiple three-dimensional objects from a left image and a right image captured with a left imaging unit and a right imaging unit (S103), extracts, as combination candidates from among the multiple three-dimensional objects, two three-dimensional objects which exist with an interval to the left/right, and determines whether a sparse parallax region, which is a region having a smaller parallax density than left/right regions, exists in an intermediate region between the two three-dimensional objects extracted as combination candidates.
    Type: Application
    Filed: June 15, 2016
    Publication date: May 17, 2018
    Inventors: Takuma OSATO, Masayuki TAKEMURA, Yuji OTSUKA, Takeshi NAGASAKI
  • Publication number: 20180038689
    Abstract: The purpose of the present invention is to provide an object detection device conducive to carrying out control in an appropriate manner according to the surrounding environment, with consideration to the accuracy of locations of detected objects. The device is characterized by being provided with: a parallax information generation unit for generating parallax information from a plurality of parallax images acquired from a plurality of imaging units; an object detection unit for detecting objects contained in the parallax images; a location information generation unit for generating location information about the objects, on the basis of the parallax information; and a location accuracy information generation unit for generating location accuracy information pertaining to the accuracy of the location information, on the basis of the condition of generation of the parallax information.
    Type: Application
    Filed: January 29, 2016
    Publication date: February 8, 2018
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Masayuki TAKEMURA, Takuma OSATO, Takeshi SHIMA, Yuji OTSUKA
  • Patent number: 9886649
    Abstract: Provided is an object detection device that makes it possible to more accurately detect a road surface even when an area that is not the road surface occupies the majority of an image and the gradient of the road surface is large, and to detect an obstacle on a road surface with greater accuracy than in the prior art.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: February 6, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Shinji Kakegawa, Haruki Matono, Yuji Otsuka
  • Patent number: 9835458
    Abstract: A ship assignment device acquires voyage schedule information including an operation time schedule and a sailing route of a voyage. The ship assignment device acquires, from a database, weather information related to the operation time schedule and the sailing route included in the schedule information. The ship assignment device acquires information regarding variations in fuel consumption rate from a database that stores the information for each of plural ships. On the basis of the acquired weather information and acquired information regarding each ship, the ship assignment device calculates the fuel consumption for when each ship sails on the sailing route included in the acquired voyage schedule information in accordance with the operation time schedule included in the voyage schedule information. On the basis of the calculation result, the ship assignment device outputs information identifying plural ships.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: December 5, 2017
    Assignee: NIPPON YUSEN KABUSHIKI KAISHA
    Inventors: Yuji Otsuka, Atsushi Yamaguchi, Masaharu Urabe, Ryo Kakuta
  • Publication number: 20170220877
    Abstract: The purpose of the present invention is to provide an object detecting device which is capable of accurately detecting an object even far away, and of shortening processing time. Provided is an object detecting device (100), comprising: a disparity acquisition unit (116) which compares each image of two cameras (112, 113) and computes a disparity for each pixel; a near-far boundary setting unit (118) which, in a single image of one of the two cameras, sets a boundary (Rb) between a near region (R1) which is close to a vehicle (110) and a far region (R2) which is distant from the vehicle (110); a near object detecting unit (119) which detects objects (102, 104) of the near region (R1) on the basis of the disparity; and a far object detecting unit (120) which detects objects (103, 104) of the far region (R2) on the basis of the single image.
    Type: Application
    Filed: August 3, 2015
    Publication date: August 3, 2017
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: SHINJI KAKEGAWA, Takeshi SHIMA, Yuji OTSUKA
  • Patent number: 9697421
    Abstract: In order to provide a stereoscopic camera apparatus capable of rapidly and accurately detecting a three-dimensional object even when the three-dimensional object abruptly appears in an angle of view, a stereoscopic camera apparatus 100 includes: three-dimensional object detecting means 105, 106, 107; to-be-covered object detecting means 108 for detecting a to-be-covered object having a known shape; and to-be-covered object covering-detecting means 109 and 110 for detecting whether or not the three-dimensional object detected by the three-dimensional object detecting means covers the to-be-covered object when the to-be-covered object is detected by the to-be-covered object detecting means 108.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: July 4, 2017
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Hiroto Mitoma, Ryo Ota, Yuji Otsuka
  • Patent number: 9679196
    Abstract: In order to provide an object sensing device whereby, among limited computation resources, performance is improved in sensing an object when sense processing a plurality of objects to be sensed, an object sensing device includes image capture units which capture images external to a host vehicle, and a processing device which sense processes objects to be sensed from the images which are captured by the image capture units, said processing device further including: a scene analysis unit which analyzes a travel scene of the host vehicle; a process priority change unit which changes a sensing process priority of the object to be sensed on the basis of the travel scene which is analyzed by the scene analysis unit; and an object to be sensed sensing unit which carries out a sensing of the object to be sensed on the basis of the sensing process priority which is changed by the process priority change unit.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: June 13, 2017
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Takeshi Shima, Haruki Matono, Shinji Kakegawa, Yuji Otsuka
  • Patent number: 9652853
    Abstract: For reduced processing time involved in an image recognition process, correctors 26a and 26b corrects two source images, acquired by two cameras during the imaging of an object, so that when the two source images are arranged side by side in a lateral direction, the imaged object has the same height in both images. A parallax calculation section 28 calculates, by block matching process, a parallax on the basis of the two corrected source images. A parallax image generation section 30 generates a parallax image on the basis of the parallax calculated by the parallax calculation section 28.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: May 16, 2017
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Haruki Matono, Yuji Otsuka
  • Publication number: 20170122955
    Abstract: Provided is a glucose derivative, which is taken into cells via a membrane sugar transport system and is represented by formula (1). Also provided are an imaging agent and an imaging method for a cell or intracellular molecule using said glucose derivative. Further provided are a method for detecting cancer cells with good accuracy using said glucose derivative and an imaging agent to be used in said method. More specifically provided are D-glucose derivatives and L-glucose derivatives in which glucose is bound to the 7-position of a fluorescent molecular group with a coumarin backbone or a quinolone backbone. Also provided are a cell imaging agent and imaging method using the derivative. A cancer cell imaging agent and imaging method using the L-glucose derivative is also provided. G is a group selected from formulas (G1)-(G4) below.
    Type: Application
    Filed: April 6, 2015
    Publication date: May 4, 2017
    Applicant: HIROSAKI UNIVERSITY
    Inventors: Katsuya YAMADA, Ayako SASAKI, Tadashi TESHIMA, Toshihiro YAMAMOTO, Yuji OTSUKA
  • Publication number: 20170041591
    Abstract: This vehicle-mounted image recognition device achieves improved performance in flashing light source recognition at low cost and without loss of performance in image recognition applications such as preceding vehicle recognition and white line recognition. At staggered exposure timing, imaging is performed alternately with a first imaging unit and a second imaging unit, which form a pair in a vehicle-mounted camera. A flashing light source is detected from one or both of the first image obtained from the first imaging unit and a second image obtained from the second imaging unit, and the following times, exposure of the first imaging unit and the second imaging unit is matched to when the flashing light source is on. Thereby, flashing light sources are recognized with high accuracy without loss of performance of the image recognition function.
    Type: Application
    Filed: November 12, 2014
    Publication date: February 9, 2017
    Inventors: Naoki KOROGI, Yuji OTSUKA
  • Publication number: 20160282125
    Abstract: A ship assignment device acquires voyage schedule information including an operation time schedule and a sailing route of a voyage. The ship assignment device acquires, from a database, weather information related to the operation time schedule and the sailing route included in the schedule information. The ship assignment device acquires information regarding variations in fuel consumption rate from a database that stores the information for each of plural ships. On the basis of the acquired weather information and acquired information regarding each ship, the ship assignment device calculates the fuel consumption for when each ship sails on the sailing route included in the acquired voyage schedule information in accordance with the operation time schedule included in the voyage schedule information. On the basis of the calculation result, the ship assignment device outputs information identifying plural ships.
    Type: Application
    Filed: May 28, 2013
    Publication date: September 29, 2016
    Applicant: NIPPON YUSEN KABUSHIKI KAISHA
    Inventors: Yuji OTSUKA, Atsushi YAMAGUCHI, Masaharu URABE, Ryo KAKUTA
  • Publication number: 20160268101
    Abstract: A microwave automatic matcher includes a movable body, a driving unit, a matching control unit, a reflection coefficient measuring unit, and a setting unit. The matching control unit consecutively moves the movable body from a start position in one direction by a distance of a difference between the start position and the target position in a matching operation carried out for the plasma process and then variably controls the position of the movable body until the measurement of the reflection coefficient obtained by the reflection coefficient measuring unit falls within the first neighboring range by monitoring the measurement of the reflection coefficient.
    Type: Application
    Filed: March 9, 2016
    Publication date: September 15, 2016
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kazushi KANEKO, Hideo KATO, Kazunori FUNAZAKI, Yuji OTSUKA, Shinji KAWADA