Patents by Inventor TADAAKI YANAGI

TADAAKI YANAGI 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: 11006061
    Abstract: In an image correction method and an image capture device, a one-frame addition average calculation unit calculates a one-frame addition average value. If the one-frame addition average value falls within an appropriate range, a determination circuit inputs image data for one frame to an adder and the adder adds the image data to a cumulative correction value to update the correction value. The updated correction value is stored in a frame memory. If the one-frame addition average value is outside the appropriate range, the image data for one frame is discarded. After updating the cumulative correction value until the number of updates reaches a prescribed number, an FPN correction value is calculated by dividing the cumulative correction value stored in the frame memory by the prescribed number, and an image is corrected by subtracting the FPN correction value from the image data inputted at the time of imaging.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: May 11, 2021
    Assignee: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Tadaaki Yanagi, Kazuhiko Nakamura, Kentaro Suguro, Kazuyoshi Sato
  • Publication number: 20190191115
    Abstract: In an image correction method and an image capture device, a one-frame addition average calculation unit calculates a one-frame addition average value. If the one-frame addition average value falls within an appropriate range, a determination circuit inputs image data for one frame to an adder and the adder adds the image data to a cumulative correction value to update the correction value. The updated correction value is stored in a frame memory. If the one-frame addition average value is outside the appropriate range, the image data for one frame is discarded. After updating the cumulative correction value until the number of updates reaches a prescribed number, an FPN correction value is calculated by dividing the cumulative correction value stored in the frame memory by the prescribed number, and an image is corrected by subtracting the FPN correction value from the image data inputted at the time of imaging.
    Type: Application
    Filed: June 12, 2017
    Publication date: June 20, 2019
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: TADAAKI YANAGI, KAZUHIKO NAKAMURA, KENTARO SUGURO, KAZUYOSHI SATO