Patents by Inventor Taro Imagawa

Taro Imagawa 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: 10733751
    Abstract: A displacement detecting apparatus includes: a detector which detects displacement, which is spatial displacement over time, of each of a plurality of measurement points which have been set on an object, using a plurality of images of the object captured at a plurality of time points; an extractor which extracts characteristic displacement specific to the object, based on the displacement detected by the detector; and a calculator which calculates overall displacement indicating displacement of the entirety of the object, from the characteristic displacement extracted by the extractor.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: August 4, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Taro Imagawa
  • Publication number: 20200209049
    Abstract: A double tire determination device includes an image input unit and a determination unit. The image input unit receives input of a captured image including a tire mounted on a vehicle. The determination unit determines whether the tire is a double tire, based on a ratio between a first area and a second area. The first area is an area of a first wheel region that is a part of a region of a wheel holding the tire and that is located on a side in a first direction with respect to a position of a rotation center of the tire. The second area is an area of a second wheel region that is a part of the region of the wheel holding the tire and that is located on a side in a second direction, which is opposite to the first direction, with respect to the position of the rotation center.
    Type: Application
    Filed: March 6, 2020
    Publication date: July 2, 2020
    Inventors: AKIHIRO NODA, TARO IMAGAWA, HIROYA KUSAKA
  • Patent number: 10697821
    Abstract: A calibration device is a calibration device configured to calibrate a load meter that measures an axle load of a vehicle. The calibration device includes a detector and a calibrator. The detector detects a displacement amount corresponding to displacement caused on a road by the axle load of the vehicle. The calibrator aggregates the displacement amounts detected by the detector to generate a histogram of the displacement amounts, and updates a displacement coefficient for calculating the axle load of the vehicle based on a shape of the histogram. The calibrator updates the displacement coefficient base only on the shape of the histogram corresponding to a first axle serving as a forefront axle of the vehicle.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: June 30, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Taro Imagawa, Akihiro Noda, Hiroya Kusaka
  • Publication number: 20200202555
    Abstract: A lift-up determining device includes a detector and a determination unit. The detector acquires a captured image including a tire on an axle of a vehicle and detects the tire from the captured image. The determination unit determines, based on a detection result by the detector, whether the axle is lifted up.
    Type: Application
    Filed: March 6, 2020
    Publication date: June 25, 2020
    Inventors: AKIHIRO NODA, TARO IMAGAWA, HIROYA KUSAKA
  • Patent number: 10667675
    Abstract: A lighting unit has a plurality of light sources that emits excitation light having relative spectral distributions different from each other. An imaging unit simultaneously captures an image of fluorescent light emitted from the subject by the excitation light and an image of reflected light obtained by reflecting the excitation light by the subject, to generate a captured image. The arithmetic unit calculates a relative spectral distribution of the fluorescent light emitted from the subject by using the information about the relative spectral distribution of the reflected light for each of the plurality of light sources stored in the memory and the captured image for each of the plurality of light sources generated by the imaging unit.
    Type: Grant
    Filed: July 23, 2017
    Date of Patent: June 2, 2020
    Assignee: Panasonic Corporation
    Inventors: Shunsuke Yasugi, Taro Imagawa, Shinsaku Hiura
  • Patent number: 10616458
    Abstract: A lighting unit includes a plurality of light sources that respectively emit plural rays of illumination light. An imaging unit that simultaneously images plural rays of reflected light obtained by the plural rays of illumination light being reflected by a subject so as to obtain information about a plurality of colors, and generates a captured image including the information about the plurality of colors. A memory stores sensitivity information items that correspond to the plurality of light sources respectively. An arithmetic unit performs an arithmetic operation to generate a plurality of separated images from the captured image by using the sensitivity information items. The plurality of separated images correspond to the plurality of light sources respectively, and each of the plurality of separated images only includes information about a corresponding one of the plural rays of reflected light.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: April 7, 2020
    Assignee: Panasonic Intellectual Property Management
    Inventors: Shunsuke Yasugi, Hiroya Kusaka, Taro Imagawa, Akihiro Noda
  • Patent number: 10609292
    Abstract: An imaging apparatus includes an imaging unit, a detector, a calculator, and a controller. The imaging unit captures an image of a road on which a vehicle runs, and generates the captured image of the road. The detector detects a contact position at which the vehicle is in contact with the road in the captured image. The calculator calculates a first brightness range based on brightness distribution in a first road surface area on the road and the first road surface area includes the contact position. The controller determines an imaging condition for the imaging unit based on the first brightness range, and controls the imaging unit using the determined imaging condition.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: March 31, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Taro Imagawa, Akihiro Noda, Hiroya Kusaka
  • Publication number: 20200041394
    Abstract: A rigidity measurement apparatus is a rigidity measurement apparatus that measures rigidity of an object to be measured and includes a load estimator, a displacement calculator, and a rigidity calculator. The load estimator estimates a load applied to a measurement point set on the object to be measured by using a captured image of the object to be measured. The displacement calculator calculates a displacement of the measurement point by using the captured image. The rigidity calculator calculates the rigidity of the object to be measured by using the load and the displacement.
    Type: Application
    Filed: October 9, 2019
    Publication date: February 6, 2020
    Inventors: Taro IMAGAWA, Akihiro NODA, Hiroya KUSAKA
  • Patent number: 10488311
    Abstract: A rigidity measurement apparatus is a rigidity measurement apparatus that measures rigidity of an object to be measured and includes a load estimator, a displacement calculator, and a rigidity calculator. The load estimator estimates a load applied to a measurement point set on the object to be measured by using a captured image of the object to be measured. The displacement calculator calculates a displacement of the measurement point by using the captured image. The rigidity calculator calculates the rigidity of the object to be measured by using the load and the displacement.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: November 26, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Taro Imagawa, Akihiro Noda, Hiroya Kusaka
  • Patent number: 10473515
    Abstract: A weight measuring device includes a displacement amount detector, a storage unit, and a weight calculator. The displacement amount detector detects, by using a captured image obtained by capturing a road and a vehicle present on the road, a displacement amount, in the captured image, corresponding to displacement caused on the road by application of a weight of the vehicle. The storage unit stores first information indicating a relation between the weight and the displacement amount. The weight calculator calculates the weight based on the displacement amount and the first information.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: November 12, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Taro Imagawa
  • Publication number: 20190265020
    Abstract: A displacement measuring apparatus measures a displacement of a measurement object by using a captured image where the measurement object and a load object are imaged. The displacement is caused by the load object in contact with the measurement object at a contact position. The displacement measuring apparatus includes a position detector, an area setting unit and a displacement calculator. The position detector detects a position, of the load object, in the captured image. The area setting unit sets a position and a size of a detection area in the captured image by using distance information and the position of the load object detected by the position detector, the distance information spatially indicating a distance between the measurement object when the load object is not on the measurement object and an imaging device that generates the captured image. The displacement calculator calculates the displacement by using only an image in the detection area in the captured image.
    Type: Application
    Filed: May 7, 2019
    Publication date: August 29, 2019
    Inventors: AKIHIRO NODA, HIROYA KUSAKA, TARO IMAGAWA
  • Patent number: 10379035
    Abstract: An appearance inspection apparatus includes a lighting unit, an imaging unit, a memory, an operating unit, a detecting unit, and a determination unit. The lighting unit has a plurality of light sources emitting single-wavelength light with relative spectral distributions different from one another, and substantially simultaneously irradiates a photographic subject with illumination light. The imaging unit captures light discharged by the photographic subject. The memory stores information about sensitivity characteristics of the imaging unit for each color. The operating unit separates an image into a first, a second, and a third image, for each component of the single-wavelength light, using the information. The detecting detects information about a specific area of the photographic subject using the first and the second image. The determination unit extracts an amount of image characteristics corresponding to a characteristic part present in the specific area using the first and the third image.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: August 13, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Akihiro Noda, Hiroya Kusaka, Taro Imagawa, Shunsuke Yasugi
  • Publication number: 20190242693
    Abstract: An axle-load measuring apparatus measures an axle load of a vehicle by using a captured image where a road and the vehicle on the road are imaged, and the axle-load measuring apparatus includes a displacement calculator, a correction information obtaining unit, and an axle-load calculator. The displacement calculator detects a displacement of the road by using the captured image. The displacement is caused by receiving the axle load. The correction information obtaining unit obtains correction information. An axle-load calculator calculates the axle load by using the displacement and the correction information.
    Type: Application
    Filed: April 16, 2019
    Publication date: August 8, 2019
    Inventors: AKIHIRO NODA, HIROYA KUSAKA, TARO IMAGAWA
  • Publication number: 20190244381
    Abstract: A displacement detecting apparatus includes: a detector which detects displacement, which is spatial displacement over time, of each of a plurality of measurement points which have been set on an object, using a plurality of images of the object captured at a plurality of time points; an extractor which extracts characteristic displacement specific to the object, based on the displacement detected by the detector; and a calculator which calculates overall displacement indicating displacement of the entirety of the object, from the characteristic displacement extracted by the extractor.
    Type: Application
    Filed: April 16, 2019
    Publication date: August 8, 2019
    Inventor: Taro IMAGAWA
  • Publication number: 20190226904
    Abstract: A load meter includes a detector, a storage unit, and a load calculator. The detector detects, by using a captured image obtained by capturing a road and a vehicle present on the road, a displacement amount in the captured image, the displacement amount corresponding to displacement caused on the road by application of a load of the vehicle. The storage unit stores information indicating a relation between the load and the displacement amount. The load calculator calculates the load based on the displacement amount and the information.
    Type: Application
    Filed: April 2, 2019
    Publication date: July 25, 2019
    Inventors: TARO IMAGAWA, AKIHIRO NODA, HIROYA KUSAKA
  • Publication number: 20190212223
    Abstract: A monitoring system includes an axle weight measurer and a state estimator. The axle weight measurer detects a surface displacement of a road from a first captured image obtained by imaging the road when a vehicle passes at a predetermined spot of a structure having the road that the vehicle passes, and calculates an axle weight of the vehicle from the surface displacement and a displacement coefficient of the road. The state estimator generates an axle weight distribution from the axle weight calculated by the axle weight measurer, and estimates a deterioration degree of the structure, using the axle weight distribution.
    Type: Application
    Filed: March 19, 2019
    Publication date: July 11, 2019
    Inventors: HIROYA KUSAKA, TARO IMAGAWA, AKIHIRO NODA
  • Patent number: 10311591
    Abstract: A displacement detecting apparatus includes: a detector which detects displacement, which is spatial displacement over time, of each of a plurality of measurement points which have been set on an object, using a plurality of images of the object captured at a plurality of time points; an extractor which extracts characteristic displacement specific to the object, based on the displacement detected by the detector; and a calculator which calculates overall displacement indicating displacement of the entirety of the object, from the characteristic displacement extracted by the extractor.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: June 4, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Taro Imagawa
  • Publication number: 20190037115
    Abstract: A lighting unit includes a plurality of light sources that respectively emit plural rays of illumination light. An imaging unit that simultaneously images plural rays of reflected light obtained by the plural rays of illumination light being reflected by a subject so as to obtain information about a plurality of colors, and generates a captured image including the information about the plurality of colors. A memory stores sensitivity information items that correspond to the plurality of light sources respectively. An arithmetic unit performs an arithmetic operation to generate a plurality of separated images from the captured image by using the sensitivity information items. The plurality of separated images correspond to the plurality of light sources respectively, and each of the plurality of separated images only includes information about a corresponding one of the plural rays of reflected light.
    Type: Application
    Filed: September 19, 2018
    Publication date: January 31, 2019
    Inventors: SHUNSUKE YASUGI, HIROYA KUSAKA, TARO IMAGAWA, AKIHIRO NODA
  • Publication number: 20180330517
    Abstract: A displacement detecting apparatus includes: a detector which detects displacement, which is spatial displacement over time, of each of a plurality of measurement points which have been set on an object, using a plurality of images of the object captured at a plurality of time points; an extractor which extracts characteristic displacement specific to the object, based on the displacement detected by the detector; and a calculator which calculates overall displacement indicating displacement of the entirety of the object, from the characteristic displacement extracted by the extractor.
    Type: Application
    Filed: July 25, 2018
    Publication date: November 15, 2018
    Inventor: Taro IMAGAWA
  • Patent number: 10091404
    Abstract: The illumination apparatus according to the present disclosure emits illumination light to an object which is to be captured by an imaging apparatus that captures an imaging area for every predetermined capturing unit. The illumination apparatus includes a controller that acquires imaging information including a scanning timing from the imaging apparatus to calculate an imaging range of the imaging apparatus at each the scanning timing, determines an illumination range at each the scanning timing using a distance to the imaging apparatus from the object present within the imaging range and a positional relation between the imaging apparatus and the illumination apparatus, and controls emission of the illumination light to the determined illumination range in synchronization with the scanning timing.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: October 2, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Taro Imagawa