Patents by Inventor Hideaki Maehara

Hideaki Maehara 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: 10943141
    Abstract: An image feature map generating unit (3) generates, on the basis of feature amounts extracted from a plurality of images successively captured by a camera (109), an image feature map which is an estimated distribution of the object likelihood on each of the images. An object detecting unit (4) detects an object on the basis of the image feature map generated by the image feature map generating unit (3).
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: March 9, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tomoya Sawada, Hidetoshi Mishima, Hideaki Maehara, Yoshimi Moriya, Kazuyuki Miyazawa, Akira Minezawa, Momoyo Hino, Mengxiong Wang, Naohiro Shibuya
  • Publication number: 20210041543
    Abstract: A processor outputs laser irradiation location identifying pattern information for displaying a laser irradiation location identifying pattern from a laser measuring device to a display screen of a display. The processor receives reflection intensity value information including reflection intensity values of laser light, and determines a laser irradiation location on the display screen of the display on the basis of the reflection intensity values included in the reflection intensity value information, the reflection intensity value information being outputted from the laser measuring device having received the laser light emitted from the laser measuring device and reflected from the laser irradiation location identifying pattern displayed on the display screen of the display. The processor outputs camera calibration pattern information for displaying a camera calibration pattern on the display screen of the display.
    Type: Application
    Filed: October 22, 2020
    Publication date: February 11, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Ryoga SUZUKI, Hideaki MAEHARA, Momoyo HINO, Kenji TAIRA, Sumio KATO
  • Publication number: 20200202556
    Abstract: An object of the present invention is to provide a water level measurement device and a shoreline extraction method each of which is capable of stably measuring the water level. A pixel selection unit (11) selects a pixel of interest (302) from a designated area (301) designated from a captured image (300), and an identification image extraction unit (12) extracts identification images (303), (304) each coming in contact with the pixel of interest (302). The identification unit (13) calculates an identification strength indicating a degree to which an area corresponding to each of the identification images (303), (304) is a water area, on a basis of the result of machine learning related to identification between the water area and a non-water area.
    Type: Application
    Filed: May 8, 2018
    Publication date: June 25, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hideaki MAEHARA, Mengxiong WANG, Momoyo HINO, Hidetoshi MISHIMA, Eiji UEDA, Tetsuro WADA, Kenji TAIRA
  • Patent number: 10643338
    Abstract: An object detection device includes: an optical flow calculator to calculate an optical flow between images captured by the image capturer at different times; an evaluation value calculator to divide the image captured by the image capturer into areas, and calculate, for each divided area, an evaluation value by using the optical flows of pixels belonging to the divided area, the evaluation value indicating a measure of a possibility that the divided area is an object area representing part or whole of the object to be detected; and an area determinator to determine an area in an image, in which the object to be detected exists, by comparing the evaluation value of each divided area calculated by the evaluation value calculator with a threshold value.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: May 5, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuyuki Miyazawa, Shunichi Sekiguchi, Hideaki Maehara, Yoshimi Moriya, Akira Minezawa, Ryoji Hattori, Momoyo Nagase, Tomoya Sawada
  • Publication number: 20200116482
    Abstract: The present invention is provided with: a coordinates calculation unit (161) that, on the basis of data related to distance measurement points (P) indicating the distance to and the angle of a respective plurality of distance measurement points (P) and the coordinates of a laser beam irradiation reference point, and on the basis of the attitude angle of an aircraft (2), calculates coordinates of each of the distance measurement points (P) on a corresponding image among a plurality of images; a feature point extraction unit (162) that extracts feature points for each of the images; a distance calculation unit (163) that calculates, for each of the distance measurement points (P), the distance to a nearby feature point among the feature points extracted by the feature point extraction unit (162) on the basis of the coordinates calculated in the corresponding image by the coordinates calculation unit (161); and a necessity determination unit (166) that deletes unnecessary data from the data related to the distan
    Type: Application
    Filed: March 28, 2018
    Publication date: April 16, 2020
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Momoyo HINO, Hideaki MAEHARA, Kenji TAIRA, Sumio KATO
  • Publication number: 20190293450
    Abstract: An attitude estimation apparatus (30) includes: a data acquiring unit (32) for acquiring observation data; a range-measurement point coordinate calculator (33A) for calculating geodetic coordinates of a range-measurement point in a geodetic coordinate system using positioning data, ranging data, actual attitude data, and an estimated value of an unknown parameter representing an attitude of a flying object; an image coordinate calculator (33B) for calculating coordinates of a projected point by performing projection transformation from the geodetic coordinate system to an image coordinate system on the geodetic coordinates; an image matching processor (34) for detecting image coordinates of the range-measurement point appearing in a first captured image by executing image matching between the first captured image and a second captured image selected from captured images; and an attitude estimator (35) for correcting the estimated value such that a magnitude of a difference between the coordinates of the proje
    Type: Application
    Filed: June 2, 2016
    Publication date: September 26, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Momoyo HINO, Hideaki MAEHARA, Kenji TAIRA, Sumio KATO
  • Publication number: 20190197345
    Abstract: An image feature map generating unit (3) generates, on the basis of feature amounts extracted from a plurality of images successively captured by a camera (109), an image feature map which is an estimated distribution of the object likelihood on each of the images. An object detecting unit (4) detects an object on the basis of the image feature map generated by the image feature map generating unit (3).
    Type: Application
    Filed: September 15, 2016
    Publication date: June 27, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tomoya SAWADA, Hidetoshi MISHIMA, Hideaki MAEHARA, Yoshimi MORIYA, Kazuyuki MIYAZAWA, Akira MINEZAWA, Momoyo HINO, Mengxiong WANG, Naohiro SHIBUYA
  • Publication number: 20190197699
    Abstract: A return point acquiring unit refers to both a first optical flow from an image to an image, and a second optical flow from the image to the image, to acquire the coordinates of a return point which is an end point of the second optical flow. An accuracy calculating unit calculates the accuracy of the optical flows on the basis of the difference between the coordinates of a start point of the first optical flow and the coordinates of the return point acquired by the return point acquiring unit.
    Type: Application
    Filed: September 16, 2016
    Publication date: June 27, 2019
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hideaki MAEHARA, Momoyo HINO
  • Publication number: 20190193659
    Abstract: An information processing unit (32) collects accident information from a vehicle-mounted device (2) existing in a periphery of a site of an accident indicated by accident information stored in a storage unit (31), by controlling a communication unit (30).
    Type: Application
    Filed: July 7, 2016
    Publication date: June 27, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kazuyuki MIYAZAWA, Shunichi SEKIGUCHI, Hideaki MAEHARA, Yoshimi MORIYA, Akira MINEZAWA, Ryoji HATTORI, Momoyo HINO, Tomoya SAWADA, Naohiro SHIBUYA
  • Patent number: 10222210
    Abstract: Image matching on a pair of image data about images which are shot at different shooting positions is performed, and a point corresponding to the coordinates of a distance measurement point on the image shown by one image data of the pair is searched through the image shown by the other image data of the pair. The value of a parameter showing the attitude of an airplane (2) is corrected in such a way that the difference between the coordinates of the distance measurement point on the image shown by the other image data of the pair and the coordinates of the corresponding point which is searched for via the image matching becomes small, to estimate the attitude of the airplane (2).
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: March 5, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hideaki Maehara, Momoyo Nagase, Kenji Taira, Sumio Kato
  • Publication number: 20180204333
    Abstract: An object detection device includes: an optical flow calculator to calculate an optical flow between images captured by the image capturer at different times; an evaluation value calculator to divide the image captured by the image capturer into areas, and calculate, for each divided area, an evaluation value by using the optical flows of pixels belonging to the divided area, the evaluation value indicating a measure of a possibility that the divided area is an object area representing part or whole of the object to be detected; and an area determinator to determine an area in an image, in which the object to be detected exists, by comparing the evaluation value of each divided area calculated by the evaluation value calculator with a threshold value.
    Type: Application
    Filed: December 2, 2015
    Publication date: July 19, 2018
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuyuki MIYAZAWA, Shunichi SEKIGUCHI, Hideaki MAEHARA, Yoshimi MORIYA, Akira MINEZAWA, Ryoji HATTORI, Momoyo NAGASE, Tomoya SAWADA
  • Publication number: 20180120107
    Abstract: Image matching on a pair of image data about images which are shot at different shooting positions is performed, and a point corresponding to the coordinates of a distance measurement point on the image shown by one image data of the pair is searched through the image shown by the other image data of the pair. The value of a parameter showing the attitude of an airplane (2) is corrected in such a way that the difference between the coordinates of the distance measurement point on the image shown by the other image data of the pair and the coordinates of the corresponding point which is searched for via the image matching becomes small, to estimate the attitude of the airplane (2).
    Type: Application
    Filed: September 9, 2015
    Publication date: May 3, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hideaki MAEHARA, Momoyo NAGASE, Kenji TAIRA, Sumio KATO
  • Patent number: 9563937
    Abstract: It is an object to obtain a high-resolution image generation apparatus that can generate a high-quality image by sorting out good portions from faulty portions in optical flow. The present invention includes: a hard disk that stores multi-viewpoint image information and parameter information of a base image and a plurality of reference images; an optical flow computation unit that extracts a plurality of pairs of the base image and a reference image, the plurality of pairs each including a different reference image, and computes optical flow for each pair; a depth information computation unit that computes depth information which indicates depth of each pixel of the base image for each pair, based on optical flow and the parameter information; and an optical flow sorting unit that determines whether or not each piece of pixel-based correspondence information included in the optical flow of each pair is to be used for improving a resolution of the base image, based on two pieces of the depth information.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: February 7, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hideaki Maehara, Yosuke Ishiwatari, Hironobu Abe, Koichi Takeuchi
  • Publication number: 20160086311
    Abstract: It is an object to obtain a high-resolution image generation apparatus that can generate a high-quality image by sorting out good portions from faulty portions in optical flow. The present invention includes: a hard disk that stores multi-viewpoint image information and parameter information of a base image and a plurality of reference images; an optical flow computation unit that extracts a plurality of pairs of the base image and a reference image, the plurality of pairs each including a different reference image, and computes optical flow for each pair; a depth information computation unit that computes depth information which indicates depth of each pixel of the base image for each pair, based on optical flow and the parameter information; and an optical flow sorting unit that determines whether or not each piece of pixel-based correspondence information included in the optical flow of each pair is to be used for improving a resolution of the base image, based on two pieces of the depth information.
    Type: Application
    Filed: June 30, 2014
    Publication date: March 24, 2016
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hideaki MAEHARA, Yosuke ISHIWATARI, Hironobu ABE, Koichi TAKEUCHI
  • Patent number: 6556201
    Abstract: An image generation system which comprises an image generation apparatus having viewpoint definition means for defining a virtual viewpoint placed in virtual three dimensions, virtual panel definition means for defining a virtual object displayed in the virtual three dimensions and defining a virtual panel being placed in the virtual three dimensions, the virtual panel onto which a moving image is projected, based on the virtual viewpoint and the virtual object, moving image selection means for selecting a moving image to be projected onto the virtual panel from among a plurality of moving images based on the virtual viewpoint defined in the viewpoint definition means, and virtual three-dimensional image generation means for placing the virtual panel defined in the virtual panel definition means in the virtual three dimensions, projecting the moving image selected by the moving image selection means onto the virtual panel, and generating an image from the virtual viewpoint defined in the viewpoint definition
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: April 29, 2003
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hideaki Maehara, Satoshi Tanaka
  • Patent number: 5467411
    Abstract: A drawing recognition system is disclosed which recognizes even a complex low-quality drawing containing overlapping charts, or many blurs or discontinuations with less operations. The system includes both a program for approximating a graphical object to be recognized and a program for approximating positions on the approximated graphical object. The system further includes a means for creating a chart model according to the designation, and a chart recognition means for matching the chart model and the chart to be recognized in the drawing.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: November 14, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Satoshi Tanaka, Hideaki Maehara