Patents by Inventor Hisanori Takamaru

Hisanori Takamaru 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).

  • Ellipsoid detecting method, figure center detecting method, image recognizing device, and controller based on image
    Patent number: 7668337
    Abstract: A method for detecting an ellipsoid includes: extracting an ellipsoid candidate; extracting an ellipsoid contour; calculating an ellipsoid parameter; calculating an adaptability ratio; and eliminating the ellipsoid candidate. Extracting the ellipsoid candidate includes: inputting an image with figures; selecting the ellipsoid candidate from the figures; and extracting a contour candidate point and a center point. Extracting the ellipsoid contour includes: drawing straight lines; determining contour candidate points; calculating first and second distances; and defining ellipsoid contour points. Calculating the ellipsoid parameter is based on the ellipsoid contour points and the center point. Calculating the adaptability ratio includes: drawing a complete ellipsoid; and calculating the adaptability ratio between the complete ellipsoid and the ellipsoid candidate. Eliminating the ellipsoid candidate is performed when the adaptability ratio is equal to or smaller than a threshold.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: February 23, 2010
    Assignee: Denso Corporation
    Inventors: Naoki Fukaya, Hironobu Fujiyoshi, Yuusuke Sakashita, Hisanori Takamaru
  • Ellipsoid detecting method, figure center detecting method, image recognizing device, and controller based on image
    Publication number: 20070133879
    Abstract: A method for detecting an ellipsoid includes: extracting an ellipsoid candidate; extracting an ellipsoid contour; calculating an ellipsoid parameter; calculating an adaptability ratio; and eliminating the ellipsoid candidate. Extracting the ellipsoid candidate includes: inputting an image with figures; selecting the ellipsoid candidate from the figures; and extracting a contour candidate point and a center point. Extracting the ellipsoid contour includes: drawing straight lines; determining contour candidate points; calculating first and second distances; and defining ellipsoid contour points. Calculating the ellipsoid parameter is based on the ellipsoid contour points and the center point. Calculating the adaptability ratio includes: drawing a complete ellipsoid; and calculating the adaptability ratio between the complete ellipsoid and the ellipsoid candidate. Eliminating the ellipsoid candidate is performed when the adaptability ratio is equal to or smaller than a threshold.
    Type: Application
    Filed: August 30, 2006
    Publication date: June 14, 2007
    Applicant: DENSO Corporation
    Inventors: Naoki Fukaya, Hironobu Fujiyoshi, Yuusuke Sakashita, Hisanori Takamaru