Patents by Inventor Yoshikuni Ichikawa

Yoshikuni Ichikawa 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).

  • Apparatus correcting shading without taking optical characteristics into consideration and method thereof
    Patent number: 10198797
    Abstract: An image processor has a gap amount detector which detects an amount of gap between a reference image and a comparative image, a first shading change rate detector which detects a shading change rate on a circumference which is away from a center of the reference image or comparative image by the gap amount, a second shading change rate detector which detects shading change rates within each area increased by the gap amount from the center of the reference image or comparative image until shading change rates within an area up to an edge of the reference image or comparative image are detected, and a shading corrector which generates a pixel value corrected in shading with respect to each pixel in the reference image based on the shading change rates detected by the first shading change rate detector and second shading change rate detector.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: February 5, 2019
    Assignee: ICHIKAWA SOFT LABORATORY CO., LTD.
    Inventors: Yoshikuni Ichikawa, Ryo Tamon
  • IMAGE PROCESSOR AND IMAGE PROCESSING METHOD
    Publication number: 20170069066
    Abstract: An image processor has a gap amount detector which detects an amount of gap between a reference image and a comparative image, a first shading change rate detector which detects a shading change rate on a circumference which is away from a center of the reference image or comparative image by the gap amount, a second shading change rate detector which detects shading change rates within each area increased by the gap amount from the center of the reference image or comparative image until shading change rates within an area up to an edge of the reference image or comparative image are detected, and a shading corrector which generates a pixel value corrected in shading with respect to each pixel in the reference image based on the shading change rates detected by the first shading change rate detector and second shading change rate detector.
    Type: Application
    Filed: September 9, 2016
    Publication date: March 9, 2017
    Inventors: Yoshikuni ICHIKAWA, Ryo TAMON
  • Image match-point detection apparatus, image match-point detection method and storage medium
    Patent number: 8077982
    Abstract: An image match-point detection apparatus has a pattern detection part, a pattern storage part, a characteristic-point extraction part and a match-point detection part. The match-point detection part determines whether the pattern numbers of the pattern information extracted as the characteristic-point pattern information for the bitmap images are identical to one another and detects a plurality of the pattern information comprising the identical pattern number, as match-point information.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: December 13, 2011
    Assignee: Ichikawa Soft Laboratory Co., Ltd.
    Inventor: Yoshikuni Ichikawa
  • IMAGE MATCH-POINT DETECTION APPARATUS, IMAGE MATCH-POINT DETECTION METHOD AND STORAGE MEDIUM
    Publication number: 20110262045
    Abstract: An image match-point detection apparatus has a pattern detection part, a pattern storage part, a characteristic-point extraction part and a match-point detection part. The match-point detection part determines whether the pattern numbers of the pattern information extracted as the characteristic-point pattern information for the bitmap images are identical to one another and detects a plurality of the pattern information comprising the identical pattern number, as match-point information.
    Type: Application
    Filed: April 21, 2011
    Publication date: October 27, 2011
    Inventor: Yoshikuni ICHIKAWA