Patents by Inventor Takumi Hashizume

Takumi Hashizume 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: 8625851
    Abstract: It is an object to measure a position of a feature around a road. An image memory unit stores images in which neighborhood of the road is captured. Further, a three-dimensional point cloud model memory unit 709 stores a point cloud showing three-dimensional coordinates obtained by laser measurement which is carried out simultaneously to the image-capturing of the images as a road surface shape model. Using an image point inputting unit 342, a pixel on a feature of a measurement target is specified by a user as a measurement image point. A neighborhood extracting unit 171 extracts a point which is located adjacent to the measurement image point and superimposed on the feature for the measurement target from the point cloud. A feature position calculating unit 174 outputs three-dimensional coordinates shown by the extracted point as three-dimensional coordinates of the feature for the measurement target.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: January 7, 2014
    Assignees: Mitsubishi Electric Corporation, Waseda University
    Inventors: Junichi Takiguchi, Naoyuki Kajiwara, Yoshihiro Shima, Ryujiro Kurosaki, Takumi Hashizume
  • Patent number: 8571265
    Abstract: It is an object to measure a position of a feature around a road. An image memory unit stores images in which neighborhood of the road is captured. Further, a three-dimensional point cloud model memory unit 709 stores a point cloud showing three-dimensional coordinates obtained by laser measurement which is carried out simultaneously to the image-capturing of the images as a road surface shape model. Using an image point inputting unit 342, a pixel on a feature of a measurement target is specified by a user as a measurement image point. A neighborhood extracting unit 171 extracts a point which is located adjacent to the measurement image point and superimposed on the feature for the measurement target from the point cloud. A feature position calculating unit 174 outputs three-dimensional coordinates shown by the extracted point as three-dimensional coordinates of the feature for the measurement target.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: October 29, 2013
    Assignees: Mitsubishi Electric Corporation, Waseda University
    Inventors: Junichi Takiguchi, Naoyuki Kajiwara, Yoshihiro Shima, Ryujiro Kurosaki, Takumi Hashizume
  • Patent number: 8483442
    Abstract: It is an object to measure a position of a feature around a road. An image memory unit stores images in which neighborhood of the road is captured. Further, a three-dimensional point cloud model memory unit 709 stores a point cloud showing three-dimensional coordinates obtained by laser measurement which is carried out simultaneously to the image-capturing of the images as a road surface shape model. A model projecting unit 172 projects a point cloud on the image, and an image displaying unit 341 displays the point cloud superimposed with the image on the displaying device. Using an image point inputting unit 342, a pixel on a feature of a measurement target is specified by a user as a measurement image point. A neighborhood extracting unit 171 extracts a point which is located adjacent to the measurement image point and superimposed on the feature for the measurement target from the point cloud.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: July 9, 2013
    Assignees: Mitsubishi Electric Corporation, Waseda University
    Inventors: Junichi Takiguchi, Naoyuki Kajiwara, Yoshihiro Shima, Ryujiro Kurosaki, Takumi Hashizume
  • Publication number: 20130010074
    Abstract: It is an object to measure a position of a feature around a road. An image memory unit stores images in which neighborhood of the road is captured. Further, a three-dimensional point cloud model memory unit 709 stores a point cloud showing three-dimensional coordinates obtained by laser measurement which is carried out simultaneously to the image-capturing of the images as a road surface shape model. Using an image point inputting unit 342, a pixel on a feature of a measurement target is specified by a user as a measurement image point. A neighborhood extracting unit 171 extracts a point which is located adjacent to the measurement image point and superimposed on the feature for the measurement target from the point cloud. A feature position calculating unit 174 outputs three-dimensional coordinates shown by the extracted point as three-dimensional coordinates of the feature for the measurement target.
    Type: Application
    Filed: July 12, 2012
    Publication date: January 10, 2013
    Applicants: Waseda University, MITSUBISHI ELECTRIC CORPORATION
    Inventors: Junichi TAKIGUCHI, Naoyuki KAJIWARA, Yoshihiro SHIMA, Ryujiro KUROSAKI, Takumi HASHIZUME
  • Publication number: 20130011013
    Abstract: It is an object to measure a position of a feature around a road. An image memory unit stores images in which neighborhood of the road is captured. Further, a three-dimensional point cloud model memory unit 709 stores a point cloud showing three-dimensional coordinates obtained by laser measurement which is carried out simultaneously to the image-capturing of the images as a road surface shape model. Using an image point inputting unit 342, a pixel on a feature of a measurement target is specified by a user as a measurement image point. A neighborhood extracting unit 171 extracts a point which is located adjacent to the measurement image point and superimposed on the feature for the measurement target from the point cloud. A feature position calculating unit 174 outputs three-dimensional coordinates shown by the extracted point as three-dimensional coordinates of the feature for the measurement target.
    Type: Application
    Filed: July 12, 2012
    Publication date: January 10, 2013
    Applicants: Waseda University, MITSUBISHI ELECTRIC CORPORATION
    Inventors: Junichi TAKIGUCHI, Naoyuki Kajiwara, Yoshihiro Shima, Ryujiro Kurosaki, Takumi Hashizume
  • Publication number: 20100034426
    Abstract: It is an object to measure a position of a feature around a road. An image memory unit stores images in which neighborhood of the road is captured. Further, a three-dimensional point cloud model memory unit 709 stores a point cloud showing three-dimensional coordinates obtained by laser measurement which is carried out simultaneously to the image-capturing of the images as a road surface shape model. A model projecting unit 172 projects a point cloud on the image, and an image displaying unit 341 displays the point cloud superimposed with the image on the displaying device. Using an image point inputting unit 342, a pixel on a feature of a measurement target is specified by a user as a measurement image point. A neighborhood extracting unit 171 extracts a point which is located adjacent to the measurement image point and superimposed on the feature for the measurement target from the point cloud.
    Type: Application
    Filed: February 15, 2008
    Publication date: February 11, 2010
    Applicants: MITSUBISHI ELECTRIC CORPORATION, WASEDA UNIVERSITY
    Inventors: Junichi Takiguchi, Naoyuki Kajiwara, Yoshihiro Shima, Ryujiro Kurosaki, Takumi Hashizume
  • Patent number: 7650245
    Abstract: An impulse line-clogging detecting apparatus. The apparatus is provide with: a differential pressure detecting unit that detects a differential pressure of a fluid, and outputs time-series data of the differential pressure. Fluctuations are determined by a differential pressure fluctuation calculating unit that calculates a differential pressure fluctuation, and a fluctuation variance calculating unit that calculates a variance of the differential pressure fluctuation. Based upon the calculated variance, a variance ratio calculating unit calculates a variance ratio of the differential pressure fluctuation variance to a differential pressure fluctuation variance obtained in advance in a normal state of the high and low pressure side impulse lines. A variance ratio correcting unit calculates a correction value for suppressing a change of the variance ratio.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: January 19, 2010
    Assignee: Yokogawa Electric Corporation
    Inventors: Takumi Hashizume, Tetsuya Wakui, Jyun-ichi Eino, Nobuo Miyaji, Yoshitaka Yuki
  • Publication number: 20080208504
    Abstract: This impulse line-clogging detecting apparatus is provide with: a differential pressure detecting unit that detects a differential pressure of a fluid, and outputs time series data of the differential pressure; a differential pressure fluctuation calculating unit that calculates a differential pressure fluctuation; a fluctuation variance calculating unit that calculates a variance of the differential pressure fluctuation; a variance ratio calculating unit that calculates a variance ratio of the differential pressure fluctuation variance calculated by the fluctuation variance calculating unit to a differential pressure fluctuation variance obtained in advance in a normal state of the high and low pressure side impulse lines; a variance ratio correcting unit that calculates a correction value for suppressing change of the variance ratio; and a clogging determining unit that determines whether the high and low pressure side impulse lines are clogged, based on the variance ratio corrected by the variance ratio co
    Type: Application
    Filed: September 25, 2007
    Publication date: August 28, 2008
    Applicants: Yokogawa Electric Corporation
    Inventors: Takumi HASHIZUME, Tetsuya Wakui, Jyun-ichi Eino, Nobuo Miyaji, Yoshitaka Yuki
  • Patent number: 7406387
    Abstract: A detecting apparatus includes the following units. A pressure detecting unit detects in time series higher and lower static pressures and a differential pressure. Fluctuation calculating units calculate time series data sets of a differential pressure fluctuation, a higher static pressure fluctuation, and a lower static pressure fluctuation. Square sum calculating units calculate the square sum of the time series data sets of the differential pressure fluctuation, the square sum of the time series data sets of the higher static pressure fluctuation, and the square sum of the time series data sets of the lower static pressure fluctuation. A correlation coefficient calculating unit calculates first and second correlation coefficients. An intermediate variable calculating unit calculates an intermediate variable. A blockage rate calculating unit calculates a blockage rate. A determination unit determines a blockage of higher and lower pressure impulse lines with reference to the blockage rate.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: July 29, 2008
    Assignees: Yokogawa Electric Corporation
    Inventors: Takumi Hashizume, Tetsuya Wakui, Jyun-ichi Eino, Nobuo Miyaji
  • Publication number: 20070225924
    Abstract: A detecting apparatus includes the following units. A pressure detecting unit detects in time series higher and lower static pressures and a differential pressure. Fluctuation calculating units calculate time series data sets of a differential pressure fluctuation, a higher static pressure fluctuation, and a lower static pressure fluctuation. Square sum calculating units calculate the square sum of the time series data sets of the differential pressure fluctuation, the square sum of the time series data sets of the higher static pressure fluctuation, and the square sum of the time series data sets of the lower static pressure fluctuation. A correlation coefficient calculating unit calculates first and second correlation coefficients. An intermediate variable calculating unit calculates an intermediate variable. A blockage rate calculating unit calculates a blockage rate. A determination unit determines a blockage of higher and lower pressure impulse lines with reference to the blockage rate.
    Type: Application
    Filed: March 22, 2007
    Publication date: September 27, 2007
    Inventors: Takumi Hashizume, Tetsuya Wakui, Jyun-ichi Eino, Nobuo Miyaji
  • Patent number: 7260496
    Abstract: A pressure detector for detecting a high side pressure from a high pressure side impulse line and a low side pressure from a low pressure side impulse line includes a high side pressure variance calculating section for calculating a high side pressure variance from a high side pressure fluctuation calculated from a high side pressure signal, a low side pressure variance calculating section for calculating a low side pressure variance from a low side pressure fluctuation calculated from a low side pressure signal, a rate calculating section for calculating a variable according to a ratio of the high side pressure variance to the low side pressure variance, and a determining section for determining blockage of the high pressure side impulse line or blockage of the low pressure side impulse line based on a value of the variable.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: August 21, 2007
    Assignee: Yokogawa Electric Corporation
    Inventors: Takumi Hashizume, Tetsuya Wakui, Nobuo Miyaji
  • Publication number: 20060278006
    Abstract: A pressure detector for detecting a high side pressure from a high pressure side impulse line and a low side pressure from a low pressure side impulse line includes a high side pressure variance calculating section for calculating a high side pressure variance from a high side pressure fluctuation calculated from a high side pressure signal, a low side pressure variance calculating section for calculating a low side pressure variance from a low side pressure fluctuation calculated from a low side pressure signal, a rate calculating section for calculating a variable according to a ratio of the high side pressure variance to the low side pressure variance, and a determining section for determining blockage of the high pressure side impulse line or blockage of the low pressure side impulse line based on a value of the variable.
    Type: Application
    Filed: May 25, 2006
    Publication date: December 14, 2006
    Applicants: Yokogawa Electric Corporation, Takumi Hashizume, Tetsuya Wakui
    Inventors: Takumi Hashizume, Tetsuya Wakui, Nobuo Miyaji