Patents by Inventor Kazufumi Matsushita

Kazufumi Matsushita 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: 10645284
    Abstract: An image processing apparatus, an image processing method, and a recording medium storing a program for causing a computer to execute the image processing method. The image processing apparatus and the image processing method includes obtaining a captured image captured using a wide-angle lens, detecting movement of an image processing apparatus, converting the captured image into a wide-angle image that at least partially involves a curved plane, calculating an amount of correction according to the movement detected by the detecting, and correcting the captured image by the amount of correction.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: May 5, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Kazufumi Matsushita
  • Patent number: 10521891
    Abstract: An apparatus, system, and method of image processing, each of which: acquires a plurality of images respectively captured with a plurality of imaging elements, the plurality of images respectively corresponding to a plurality of frames of a video; calculates, for a current frame, an evaluation value to be used for evaluating each of the plurality of images using a pixel value of at least one pixel in an overlapping area of the plurality of images; determines whether an evaluation value of each of the plurality of images in a frame preceding the current frame is stored in a memory; determines at least one correction target image from the plurality of images based on the evaluation value calculated for the current frame and a determination result indicating whether the evaluation value in the preceding frame is stored; calculates a plurality of correction amounts to be used for correcting a plurality of evaluation values in the overlapping area of the correction target image, based on the evaluation value of th
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: December 31, 2019
    Assignee: Ricoh Company, Ltd.
    Inventor: Kazufumi Matsushita
  • Publication number: 20180343388
    Abstract: An image processing apparatus, an image processing method, and a recording medium storing a program for causing a computer to execute the image processing method. The image processing apparatus and the image processing method includes obtaining a captured image captured using a wide-angle lens, detecting movement of an image processing apparatus, converting the captured image into a wide-angle image that at least partially involves a curved plane, calculating an amount of correction according to the movement detected by the detecting, and correcting the captured image by the amount of correction.
    Type: Application
    Filed: May 1, 2018
    Publication date: November 29, 2018
    Inventor: Kazufumi MATSUSHITA
  • Publication number: 20180268528
    Abstract: An apparatus, system, and method of image processing, each of which: acquires a plurality of images respectively captured with a plurality of imaging elements, the plurality of images respectively corresponding to a plurality of frames of a video; calculates, for a current frame, an evaluation value to be used for evaluating each of the plurality of images using a pixel value of at least one pixel in an overlapping area of the plurality of images; determines whether an evaluation value of each of the plurality of images in a frame preceding the current frame is stored in a memory; determines at least one correction target image from the plurality of images based on the evaluation value calculated for the current frame and a determination result indicating whether the evaluation value in the preceding frame is stored; calculates a plurality of correction amounts to be used for correcting a plurality of evaluation values in the overlapping area of the correction target image, based on the evaluation value of th
    Type: Application
    Filed: March 1, 2018
    Publication date: September 20, 2018
    Applicant: Ricoh Company, Ltd.
    Inventor: Kazufumi MATSUSHITA
  • Patent number: 9912427
    Abstract: A reception apparatus for receiving data from a transmission apparatus includes a data receiver configured to receive a synchronization packet including clock information generated by the transmission apparatus and data from the transmission apparatus, a storage memory, storing the received data, a clock adjuster configured to correct a clock of the reception apparatus based on a deviation between a clock of the transmission apparatus and the clock of the reception apparatus by using the clock information generated by the transmission apparatus, a controller configured to control a clock correction amount of the clock adjuster based on a storage amount of data in the storage memory, and a data output circuit configured to retrieve the data from the storage memory to output the retrieved data in synchronization with the corrected clock.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: March 6, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Tamon Sadasue, Yasuhiro Kajiwara, Kazuhiro Takazawa, Kazufumi Matsushita, Yasuko Shirataka, Yasuko Hashimoto, Satoshi Aoki
  • Patent number: 9846043
    Abstract: A map creation apparatus includes an image receiver configured to receive images in time series while moving; a first calculator configured to extract an image area indicating an object from the images and calculate a coordinate of the object in a world coordinate system; a second calculator configured to track the object in the extracted image area with the images and calculate an optical flow of the object; an eliminator configured to calculate a difference in coordinate between vanishing points generated by the movement of the image receiver and the object based on the optical flow, and eliminate the image area of the object from the images when determining the object as a moving object based on the calculated difference; and a storage controller configured to store map information including the coordinate of the object, not eliminated by the moving object eliminator, in the world coordinate system.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: December 19, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Satoshi Aoki, Tamon Sadasue, Yasuhiro Kajiwara, Kazuhiro Takazawa, Kazufumi Matsushita, Yasuko Hashimoto, Yasuko Shirataka
  • Publication number: 20170019245
    Abstract: A reception apparatus for receiving data from a transmission apparatus includes a data receiver configured to receive a synchronization packet including clock information generated by the transmission apparatus and data from the transmission apparatus, a storage memory, storing the received data, a clock adjuster configured to correct a clock of the reception apparatus based on a deviation between a clock of the transmission apparatus and the clock of the reception apparatus by using the clock information generated by the transmission apparatus, a controller configured to control a clock correction amount of the clock adjuster based on a storage amount of data in the storage memory, and a data output circuit configured to retrieve the data from the storage memory to output the retrieved data in synchronization with the corrected clock.
    Type: Application
    Filed: June 29, 2016
    Publication date: January 19, 2017
    Applicant: Ricoh Company, Ltd.
    Inventors: Tamon SADASUE, Yasuhiro KAJIWARA, Kazuhiro TAKAZAWA, Kazufumi MATSUSHITA, Yasuko SHIRATAKA, Yasuko HASHIMOTO, Satoshi AOKI
  • Patent number: 9456220
    Abstract: An image coding device encodes image data in units of encoding line number that is number of lines necessary for implementing encoding. The image coding device includes: an image-data transforming unit that transforms image data of lines, number of which is smaller than the encoding-line number, into to-be-encoded image data of the encoding-line number of lines; and an encoding unit that encodes the to-be-encoded image data.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: September 27, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kazuhiro Takazawa, Satoshi Aoki, Yasuhiro Kajiwara, Tamon Sadasue, Kenji Suzuki, Kazufumi Matsushita
  • Publication number: 20160196654
    Abstract: A map creation apparatus includes an image receiver configured to receive images in time series while moving; a first calculator configured to extract an image area indicating an object from the images and calculate a coordinate of the object in a world coordinate system; a second calculator configured to track the object in the extracted image area with the images and calculate an optical flow of the object; an eliminator configured to calculate a difference in coordinate between vanishing points generated by the movement of the image receiver and the object based on the optical flow, and eliminate the image area of the object from the images when determining the object as a moving object based on the calculated difference; and a storage controller configured to store map information including the coordinate of the object, not eliminated by the moving object eliminator, in the world coordinate system.
    Type: Application
    Filed: December 14, 2015
    Publication date: July 7, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventors: Satoshi Aoki, Tamon SADASUE, Yasuhiro KAJIWARA, Kazuhiro TAKAZAWA, Kazufumi MATSUSHITA, Yasuko HASHIMOTO, Yasuko SHIRATAKA
  • Publication number: 20160014429
    Abstract: An image coding device encodes image data in units of encoding line number that is number of lines necessary for implementing encoding. The image coding device includes: an image-data transforming unit that transforms image data of lines, number of which is smaller than the encoding-line number, into to-be-encoded image data of the encoding-line number of lines; and an encoding unit that encodes the to-be-encoded image data.
    Type: Application
    Filed: July 2, 2015
    Publication date: January 14, 2016
    Inventors: Kazuhiro TAKAZAWA, Satoshi AOKI, Yasuhiro KAJIWARA, Tamon SADASUE, Kenji SUZUKI, Kazufumi MATSUSHITA
  • Patent number: 8894996
    Abstract: Disclosed is a composition comprising, as an active ingredient, at least one selected from the group consisting of a Zc3h12a gene inhibitor and a Zc3h12a protein inhibitor. This composition can be used as an immunoadjuvant.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: November 25, 2014
    Assignee: Osaka University
    Inventors: Shizuo Akira, Osamu Takeuchi, Kazufumi Matsushita, Ken Ishii
  • Publication number: 20120070452
    Abstract: Disclosed is a composition comprising, as an active ingredient, at least one selected from the group consisting of a Zc3h12a gene inhibitor and a Zc3h12a protein inhibitor. This composition can be used as an immunoadjuvant.
    Type: Application
    Filed: February 26, 2010
    Publication date: March 22, 2012
    Inventors: Shizuo Akira, Osamu Takeuchi, Kazufumi Matsushita, Ken Ishii