Patents by Inventor Morihiko SAKANO

Morihiko SAKANO 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: 8548226
    Abstract: In stereo matching based on standard area matching, in order to suppress a decrease in matching accuracy, it is effective to adaptively change a matching area in accordance with the local properties of an image. However, this requires high calculation costs.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: October 1, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Morihiko Sakano, Mirai Higuchi, Takuya Naka, Takeshi Shima, Shoji Muramatsu
  • Publication number: 20130147948
    Abstract: It is possible to provide an image processing apparatus capable of carrying out calibration easily and precisely without requiring a special facility and provide an imaging apparatus making use of the image processing apparatus. The imaging apparatus comprises at least two cameras 4a and 4b. The image processing apparatus or the image processing apparatus comprises a corresponding-area computing section 23 for finding a relation between areas on images taken by the cameras 4a and 4b; a coincidence-degree computing section 24 for finding a degree of coincidence of information obtained from corresponding areas on the images taken by the cameras 4a and 4b; and a camera-parameter computing section 25 for finding camera parameters on the basis of the coincidence degree computed by the coincidence-degree computing section 24.
    Type: Application
    Filed: July 27, 2011
    Publication date: June 13, 2013
    Inventors: Mirai Higuchi, Morihiko Sakano, Takeshi Shima, Shoji Muramatsu, Tatsuhiko Monji
  • Publication number: 20120327189
    Abstract: A stereo camera apparatus which carries out distance measuring stably and with high accuracy by making measuring distance resolution variable according to a distance to an object is provided. A stereo camera apparatus 1 takes in two images, changes resolution of a partial area of each image that is taken in, and calculates a distance from a vehicle to an object that is imaged in the partial area, based on disparity of the partial area of each image in which resolution is changed. Thus, even when the object exists at a long distance and is small in size, distance measuring processing can be carried out stably.
    Type: Application
    Filed: August 13, 2010
    Publication date: December 27, 2012
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Shoji Muramatsu, Mirai Higuchi, Tatsuhiko Monji, Soichiro Yokota, Morihiko Sakano, Takeshi Shima
  • Publication number: 20120185167
    Abstract: A road shape recognition device capable of accurately recognizing the road shape of a road that lies ahead in the travel direction of a vehicle is provided. A road shape recognition device 1 detects a road region of the road based on an image capturing a scene ahead in the travel direction of the vehicle, and estimates the shape of the road based on that road region. Thus, it is possible to accurately recognize road shapes over distances ranging from short to long.
    Type: Application
    Filed: July 23, 2010
    Publication date: July 19, 2012
    Applicant: Hitachi Automotive Systems Ltd
    Inventors: Mirai Higuchi, Morihiko Sakano, Takeshi Shima, Shoji Muramatsu, Tatsuhiko Monji
  • Publication number: 20110267430
    Abstract: An object of the present invention is to provide a detection device of a planar area, which suppresses matching of luminance values in areas other than a planar area, and non-detection and erroneous detection of the planar area arising from an error in projection transform. The detection device of a planar area includes an image obtaining section for obtaining a left image 100 and a right image 110; a planar area aligning section 30 for setting given regions of interest to the obtained left image 100 and the right image 110, and through use of a geometric transform function that matches the region of interest of the right image with the region of interest of the left image, performing geometric transform to generate a geometric transform image 130; and a planar area detecting section 55 for detecting a planar area 140 based on the geometric transform image 130 and the region of interest of the right image 110.
    Type: Application
    Filed: April 26, 2011
    Publication date: November 3, 2011
    Applicant: HITACHI, LTD.
    Inventors: Morihiko SAKANO, Mirai Higuchi, Takeshi Shima, Shoji Muramatsu
  • Publication number: 20110222732
    Abstract: In order to perform vehicle control, a warning process, and the like which do not give a driver an uncomfortable feeling in speed adjustment, a warning process, and the like corresponding to a road shape such as a curve, it is necessary to recognize not only a near road shape but also a far road shape with high accuracy.
    Type: Application
    Filed: June 24, 2009
    Publication date: September 15, 2011
    Inventors: Mirai Higuchi, Rayo Ota, Takuya Naka, Morihiko Sakano, Shoji Muramatsu, Tasuhiko Monji
  • Publication number: 20100328427
    Abstract: In stereo matching based on standard area matching, in order to suppress a decrease in matching accuracy, it is effective to adaptively change a matching area in accordance with the local properties of an image. However, this requires high calculation costs.
    Type: Application
    Filed: February 24, 2010
    Publication date: December 30, 2010
    Inventors: Morihiko SAKANO, Mirai Higuchi, Takuya Naka, Takeshi Shima, Shoji Muramatsu