Patents by Inventor Kota Irie

Kota Irie 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: 9591274
    Abstract: A three-dimensional object detection device has an image capturing unit, an object detection unit, first and second edge intensity calculation units, a day/night assessment unit and a controller. The day/night assessment unit assess whether it is currently daytime or nighttime when detecting a three-dimensional object based on the captured images. Upon assesses it is daytime, edges of a subject are extracted from a first edge extraction area, including a horizon reference area, and a threshold value for detecting the three-dimensional object is set based on the intensity of the edges in the first edge extraction area. Upon assesses it is nighttime, the edges of a subject are extracted from a second edge extraction area, including a road edge reference area, and a threshold value for detecting the three-dimensional object is set based on the intensity of the edges that are extracted from the second edge extraction area.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: March 7, 2017
    Assignees: Nissan Motor Co., Ltd., Clarion Co., Ltd.
    Inventors: Yasuhisa Hayakawa, Osamu Fukata, Masayuki Takemura, Akira Utagawa, Shoji Muramatsu, Kota Irie
  • Patent number: 9558546
    Abstract: A three-dimensional object detection device has an image capturing unit, an object detection unit, a nighttime assessment unit, a luminance detection unit, a luminance peak detection unit and a controller. The image capturing unit captures images rearward of a vehicle. The object detection unit detects a presence of an object from the captured images. The nighttime assessment unit assesses if nighttime has fallen. The luminance detection unit detects a luminance of image areas from the captured image. The luminance peak detection unit detects a peak in the luminance having a luminance gradient that is greater than or equal to a predetermined reference value from among the detected peaks in the luminance as a target luminance peak. The controller controls detection of the object in an image area in which the target luminance peak is detected when an assessment has been made that nighttime has fallen by the nighttime assessment unit.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: January 31, 2017
    Assignees: Nissan Motor Co., Ltd., Clarion Co., Ltd.
    Inventors: Yasuhisa Hayakawa, Osamu Fukata, Masayuki Takemura, Akira Utagawa, Shoji Muramatsu, Kota Irie
  • Patent number: 9542605
    Abstract: It is provided a state recognition system configured to recognize a state of a traveling road on which a vehicle travels, the state recognition system being configured to: select a substance adhered on a lens of a camera mounted on the vehicle in an image captured by the camera; and determine whether the traveling road is on-road or off-road by determining a type and an amount of the selected adhered substance.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: January 10, 2017
    Assignees: CLARION CO., LTD., NISSAN MOTOR CO., LTD.
    Inventors: Katsuyuki Nakamura, Kota Irie, Masahiro Kiyohara, Osamu Fukata, Yasuhisa Hayakawa
  • Publication number: 20160364620
    Abstract: An outside recognition system configured to include a camera installed on a vehicle, to analyze an image from the camera, and to recognize surroundings of the vehicle based on an analysis result of the image from the camera comprises a dirtiness detection unit which determines, as at least one reference line, at least one line on a part of at least one object that does not change in the image from the camera even if the vehicle travels, determines an observation line that corresponds to each of the at least one reference line with the image from the camera, calculates an amount by which the observation line is displaced from each of the at least one reference line, and detects whether dirt adheres to the camera based on the amount of displacement.
    Type: Application
    Filed: January 30, 2015
    Publication date: December 15, 2016
    Inventors: Yasuhiro AKIYAMA, Katsuyuki NAKAMURA, Kota IRIE
  • Publication number: 20160349502
    Abstract: A technique for improving the visibility of images from an imaging device even in conditions such that waterdrops adhering on a surface of a lens is very small is provided. An imaging device 13 includes a camera 20 having a lens 23, in which a lens side hydrophilic layer 23a is applied on a surface of the lens 23, and being configured to be provided to a vehicle, and a waterdrop guiding part 21 which guides waterdrops that adhere on the vehicle to the lens 23.
    Type: Application
    Filed: December 12, 2014
    Publication date: December 1, 2016
    Applicant: CLARION CO., LTD.
    Inventors: Kota IRIE, Hayato TSUCHIHASHI
  • Publication number: 20160307054
    Abstract: A surrounding environment recognition device includes: an image acquisition unit that obtains a photographic image from a camera for capturing, via a camera lens, an image of a surrounding environment around a mobile object; an image recognition unit that recognizes an object image of an object present in the surrounding environment based upon the photographic image obtained by the image acquisition unit; an accumulation detection unit that detects accumulation settled on the camera lens based upon the photographic image obtained by the image acquisition unit; a suspension decision-making unit that makes a decision, based upon detection results provided by the accumulation detection unit, whether or not to suspend operation of the image recognition unit; a tracking unit that detects a characteristic quantity in a tracking target image from a specific area in an image captured by the image acquisition unit for a reference frame, determines through calculation an estimated area where the characteristic quantity
    Type: Application
    Filed: October 15, 2014
    Publication date: October 20, 2016
    Applicant: Clarion Co., Ltd
    Inventors: Masayuki TAKEMURA, Masahiro KIYOHARA, Kota IRIE, Masao SAKATA, Yoshitaka UCHIDA
  • Patent number: 9473718
    Abstract: A vehicle surroundings monitoring device includes: a captured image acquisition unit that acquires an image of surroundings of a vehicle by an image capturing unit mounted on the vehicle; an attachment detection unit that decides a state in which foreign matter adheres to a lens of the image capturing unit; a state decision unit that decides that the lens is in a lens state in which performance of image recognition is reduced in case that the attachment detection unit decides that the foreign matter adheres to the lens; a lens state recording unit that records the lens state in a recording unit upon termination of a system; and a lens state read-out unit that reads out the lens state recorded in the recording unit upon start of the system.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: October 18, 2016
    Assignee: Clarion Co., Ltd.
    Inventors: Masahiro Kiyohara, Shoji Muramatsu, Masayuki Takemura, Kota Irie
  • Publication number: 20160207460
    Abstract: A lens provided on a surface of a vehicle-mounted camera has a problem that a field of view becomes undesirable because small water droplets caused by fog, light rain and others adhere and scatter incident light. In the vehicle-mounted camera provided on a periphery of a vehicle, a hydrophilic film made of silicon dioxide particles and binder is provided on the lens surface, a mean particle diameter of silicon dioxide particles dispersed on the lens side of the hydrophilic film is larger than a mean particle diameter of silicon dioxide particles on the side in contact with air space outside the vehicle-mounted camera. The mean particle diameter on the side affixed to the lens side out of the silicon dioxide particles is 40 to 100 nm, and the mean particle diameter on the side in contact with air space is 10 to 15 nm.
    Type: Application
    Filed: May 1, 2014
    Publication date: July 21, 2016
    Applicant: CLARION CO., LTD.
    Inventors: Hiroshi SASAKI, Kota IRIE, Hayato TSUCHIHASHI
  • Publication number: 20160203377
    Abstract: When a vehicle starts, a surrounding state is securely provided to a driver. When a vehicle operation detector detects that there is a possibility that a parked vehicle starts, a vehicle surrounding state recognizer recognizes a state of surrounding of the vehicle based on images imaged by a plurality of cameras imaging a plurality of different areas of the surrounding of the vehicle. A parking style determiner determines a parking style executed in parking at a position where the vehicle now parks based on a recognition result of the vehicle surrounding state recognizer. A monitoring area setter sets a monitoring area where a driver is required to pay attention when the vehicle is started based on a determination result of the parking style determiner. A vehicle surrounding state provider provides a driver with information provision in the monitoring area.
    Type: Application
    Filed: July 16, 2014
    Publication date: July 14, 2016
    Applicant: Clarion Co., Ltd.
    Inventors: Kota Irie, Daisuke Fukuda, Kenji Kato, Shinya Tagawa
  • Publication number: 20160162740
    Abstract: An in-vehicle device includes: an image acquisition unit that obtains a captured image from a camera that captures, via a camera lens, an image of a surrounding environment around a vehicle; an accumulation detection unit that individually detects a plurality of types of accumulation settled at the camera lens based upon the captured image; an image recognition unit that recognizes an object image, expressing a specific object present in the surrounding environment, in the captured image; a detection results integrating unit that calculates integrated detection results by integrating a plurality of sets of detection results based upon various sets of detection results pertaining to detection of the plurality of types of accumulation provided by the accumulation detection unit; and an operation control unit that controls operation executed by the image recognition unit based upon the integrated detection results.
    Type: Application
    Filed: June 13, 2014
    Publication date: June 9, 2016
    Applicant: CLARION CO., LTD.
    Inventors: Masayuki TAKEMURA, Masahiro KIYOHARA, Shoji MURAMATSU, Kota IRIE, Yasuhiro AKIYAMA
  • Publication number: 20160165101
    Abstract: It is possible to consider an image as a composite wave that is the result of layering waves having differing periods and amplitudes. An image captured via a lens having a water droplet attached thereto has a higher occurrence of changes such as image blur than an image that does not have a water droplet attached thereto, which means that this type of change in an image results in changes in the composite wave thereof as well. Provided is a lens dirtiness detection device that suitably determines whether a lens is dirty without being affected by a background image by: focusing on the occurrence of large changes in the composite wave of an image that accompany an increase in the dirtiness of a camera lens; extracting each of the image frequency components that constitute the composite wave; and analyzing changes in the magnitude relation between the frequency components.
    Type: Application
    Filed: June 5, 2014
    Publication date: June 9, 2016
    Applicant: Clarion Co., Ltd.
    Inventors: Yasuhiro AKIYAMA, Katsuyuki NAKAMURA, Kota IRIE
  • Publication number: 20160098606
    Abstract: An approaching-object detection system detects an approaching object based on images captured by an imaging device. The approaching-object detection system comprises an extraction unit, a distortion correction unit, an object detection unit, and an approaching-object classification unit. The extraction unit extracts a partial image of one far side and a partial image of the other far side from each of the images. The distortion correction unit corrects distortion of the partial images. The object detection unit detects an object from the corrected partial images through pattern matching with reference to preinstalled image information on the object. The approaching-object classification unit classifies the detection result of the object detection unit as an approaching object or not.
    Type: Application
    Filed: May 29, 2014
    Publication date: April 7, 2016
    Inventors: Katsuyuki NAKAMURA, Yasuhiro AKIYAMA, Kota IRIE
  • Patent number: 9286519
    Abstract: A white turbid state diagnostic apparatus has an imaging part installed on a vehicle and configured to convert a light signal from a periphery of the vehicle into an image signal, a region detection part configured to detect a region from the image signal, the region being constituted by pixels having brightness values over a predetermined brightness and being in a substantially circular shape having a predetermined area or more, a brightness gradient calculation part configured to calculate a brightness gradient on a line which is directed from a predetermined position in a predetermined direction based on brightness values of pixels on the line in the region, and a white turbid level calculation part configured to calculate a white turbid level of the lens based on the brightness gradient.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: March 15, 2016
    Assignee: Clarion Co. Ltd.
    Inventors: Kota Irie, Shoji Muramatsu, Shunsuke Kondou, Masahiro Kiyohara
  • Patent number: 9288381
    Abstract: An in-vehicle image recognizer effectively detects a moving object from an image even when a lens has grime. In a detection sensitivity adjustor (50) which adjusts detection sensitivity to be increased according to a white turbidity level (U), the detection sensitivity of a vehicle detector (70) (image recognition application execution unit), which detects the other vehicle (6) (moving object) existing in the surrounding area of a vehicle (5) with a predetermined detection sensitivity from the image obtained by an imaging unit (10) disposed in the vehicle (5) to observe the surrounding area of the vehicle (5) through a lens (12) and convert the light signal of the observed surrounding area of the vehicle (5) into an image signal, is corrected based on the attachment level M of the attached matter such as dirt or water drops to the lens (12), which is calculated by an attachment level calculator (26).
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: March 15, 2016
    Assignees: CLARION CO., LTD., NISSAN MOTOR CO., LTD.
    Inventors: Kota Irie, Masayuki Takemura, Shoji Muramatsu, Yasuhisa Hayakawa, Osamu Fukata, Masahiro Kiyohara, Akira Utagawa
  • Patent number: 9224051
    Abstract: A lens-attached matter detector includes an edge extractor configured to create an edge image based on an input image, divide the edge image into a plurality of areas including a plurality of pixels, and extract an area whose edge intensity is a threshold range as an attention area, a brightness distribution extractor configured to obtain a brightness value of the attention area and a brightness value of a circumference area, a brightness change extractor configured to obtain the brightness value of the attention area and the brightness value of the circumference area for a predetermined time interval, and obtain a time series variation in the brightness value of the attention area based on the brightness value of the attention area, and an attached matter determiner configured to determine the presence or absence of attached matter based on the time series variation in the brightness value of the attention area.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: December 29, 2015
    Assignee: Clarion Co., Ltd.
    Inventors: Kota Irie, Shoji Muramatsu, Kenji Kato, Masahiro Kiyohara
  • Publication number: 20150329083
    Abstract: An on-board device, that outputs a control signal to a cleaning control unit that controls accumulation removing units used to remove accumulations settled on a photographic lens in an on-board camera by adopting a plurality of methods, includes: an accumulation detection unit that detects an accumulation settled on the photographic lens from a photographic image output from the on-board camera when a vehicle speed input thereto is equal to or higher than a predetermined vehicle speed; a selection unit that selects an accumulation removing unit adopting a first method among the accumulation removing units adopting the plurality of methods; and a removal decision unit that makes a decision, based upon the photographic image, as to whether or not the accumulation has been removed from the photographic lens through a removal operation performed by the accumulation removing unit adopting the first method, which has been selected by the selection unit, wherein: if the removal decision unit decides that the accumul
    Type: Application
    Filed: July 3, 2013
    Publication date: November 19, 2015
    Inventors: Masahiro KIYOHARA, Kota IRIE, Katsuyuki NAKAMURA, Shoji MURAMATSU, Masayuki TAKEMURA, Osamu FUKATA, Yasuhisa HAYAKAWA
  • Publication number: 20150323785
    Abstract: A three-dimensional object detection has an image capturing device, an image conversion unit, a three-dimensional object detection unit, a three-dimensional object assessment unit, first and second foreign matter detection units and a controller. The image capturing device captures images rearward of a vehicle. The three-dimensional object detection unit detects three-dimensional objects based on image information. The three-dimensional object assessment unit assesses whether or not a detected three-dimensional object is another vehicle. The foreign matter detection units detect whether or not foreign matter has adhered to a lens based on the change over time in luminance values for each predetermined pixel of the image capturing element and the change over time in the difference between an evaluation value and a reference value. The controller outputs control commands to the other means to suppress the assessment of foreign matter as another vehicle when foreign matter has been detected.
    Type: Application
    Filed: July 12, 2013
    Publication date: November 12, 2015
    Inventors: Osamu FUKATA, Yasuhisa HAYAKAWA, Masayuki TAKEMURA, Akira UTAGAWA, Masahiro KIYOHARA, Shoji MURAMATSU, Kota IRIE
  • Publication number: 20150325005
    Abstract: A water droplet detection device has an image capturing unit and a water droplet detection unit. The image capturing unit has a photographic optical system that an area captures an image of a predetermined area. The water droplet detection unit sets an arbitrary attention point in the captured image, a plurality of first reference points inside an imaginary circle of a predetermined radius having the attention point as a center the imaginary circle, and a plurality of second reference points corresponding to the first reference points outside the imaginary circle. The water droplet detection unit detects edge information between the first reference points and second reference points, and assesses a circularity strength of the edge information to detect a water droplet attached to the photographic optical system. The water droplet detection device can be used with an image conversion unit to form a three-dimensional object detection device.
    Type: Application
    Filed: July 24, 2013
    Publication date: November 12, 2015
    Inventors: Yasuhisa HAYAKAWA, Osamu FUKATA, Masayuki TAKEMURA, Akira UTAGAWA, Shoji MURAMATSU, Kota IRIE
  • Publication number: 20150324972
    Abstract: A three-dimensional object detection device has an image capturing unit, an object detection unit, a nighttime assessment unit, a luminance detection unit, a luminance peak detection unit and a controller. The image capturing unit captures images rearward of a vehicle. The object detection unit detects a presence of an object from the captured images. The nighttime assessment unit assesses if nighttime has fallen. The luminance detection unit detects a luminance of image areas from the captured image. The luminance peak detection unit detects a peak in the luminance having a luminance gradient that is greater than or equal to a predetermined reference value from among the detected peaks in the luminance as a target luminance peak. The controller controls detection of the object in an image area in which the target luminance peak is detected when an assessment has been made that nighttime has fallen by the nighttime assessment unit.
    Type: Application
    Filed: July 26, 2013
    Publication date: November 12, 2015
    Inventors: Yasuhisa HAYAKAWA, Osamu FUKATA, Masayuki TAKEMURA, Akira UTAGAWA, Shoji MURAMATSU, Kota IRIE
  • Patent number: 9177196
    Abstract: With a simple configuration, a vehicle periphery monitoring system that easily detects pedestrian that has a possibility to collide with a vehicle to which the monitoring system is installed. Based on a change rate in the size of the image of the observation object captured at a preset time interval by an onboard camera 111 and the presence or absence of the deformation of the observation object image between the captured images, it is determined whether the observation object is a pedestrian relatively approaching the vehicle to which the monitoring system is installed.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: November 3, 2015
    Assignee: Clarion Co., Ltd.
    Inventors: Masahiro Kiyohara, Shoji Muramatsu, Kota Irie, Yoshitaka Uchida