Patents by Inventor Shihua Ming

Shihua Ming 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).

  • Method for recognizing markers using dynamic threshold and learning system based on augmented reality using marker recognition
    Patent number: 8682095
    Abstract: A method for recognizing markers printed on a learning material, includes sampling an image of the learning material; grouping the sampled image of pixels into a first image group and a second image group based on a threshold; and calculating medians of the first image group and the second image group to update the threshold with a first average value of the calculated medians. Further, the method for recognizing markers printed on the learning material includes repeating the above until a difference between a previous threshold and an updated threshold is equal to or smaller than a reference value; binarizing an image captured by a camera based on the updated threshold; and detecting the markers based on the binary image.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: March 25, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Su Woong Lee, Junsuk Lee, Yong Hun Kim, Seokjae Lee, Sangwon Um, Shihua Ming
  • METHOD FOR RECOGNIZING MARKERS USING DYNAMIC THRESHOLD AND LEARNING SYSTEM BASED ON AUGMENTED REALITY USING MARKER RECOGNITION
    Publication number: 20100111405
    Abstract: A method for recognizing markers printed on a learning material, includes sampling an image of the learning material; grouping the sampled image of pixels into a first image group and a second image group based on a threshold; and calculating medians of the first image group and the second image group to update the threshold with a first average value of the calculated medians. Further, the method for recognizing markers printed on the learning material includes repeating the above until a difference between a previous threshold and an updated threshold is equal to or smaller than a reference value; binarizing an image captured by a camera based on the updated threshold; and detecting the markers based on the binary image.
    Type: Application
    Filed: July 1, 2009
    Publication date: May 6, 2010
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Su Woong LEE, Junsuk Lee, Yong Hun Kim, Seokjae Lee, Sangwon Um, Shihua Ming