Patents by Inventor Philippe LAVOLE

Philippe LAVOLE 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 and method for detecting defect of image having periodic pattern
    Patent number: 10062155
    Abstract: Disclosed is a defect detection apparatus. The defect detection apparatus includes an angle extractor configured to extract a slope angle of a pattern from an original image in which a plurality of the patterns are formed at periodic intervals, a pattern period extractor configured to extract a pattern period at which the patterns are separated from each other, by using the slope angle, and an image shifter configured to shift the original image by the pattern period in a direction perpendicular to the slope angle to form the shifted image. The present invention shifts an image by using the slope angle and pattern period of the periodic pattern, thus easily extracting a defect of the original image.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: August 28, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Philippe Lavole
  • APPARATUS AND METHOD FOR DETECTING DEFECT OF IMAGE HAVING PERIODIC PATTERN
    Publication number: 20150139530
    Abstract: Disclosed is a defect detection apparatus. The defect detection apparatus includes an angle extractor configured to extract a slope angle of a pattern from an original image in which a plurality of the patterns are formed at periodic intervals, a pattern period extractor configured to extract a pattern period at which the patterns are separated from each other, by using the slope angle, and an image shifter configured to shift the original image by the pattern period in a direction perpendicular to the slope angle to form the shifted image. The present invention shifts an image by using the slope angle and pattern period of the periodic pattern, thus easily extracting a defect of the original image.
    Type: Application
    Filed: November 19, 2013
    Publication date: May 21, 2015
    Applicant: LG Display Co., Ltd.
    Inventor: Philippe LAVOLE