Patents by Inventor Yun-Chian Chang

Yun-Chian Chang 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).

  • Image detection methods and apparatus
    Patent number: 11263500
    Abstract: A method for designating a given image as similar/dissimilar with respect to a reference image is provided. The method includes normalizing the image. Normalizing includes performing pre-processing and a lossy compression on the given image to obtain a lossy representation. The pre-processing includes at least one of cropping, fundamental extracting, gray scale converting and lower color bit converting. The method also includes comparing the lossy representation of the given image with a reference representation, which is a version of a reference spam image after the reference spam image has undergone a similar normalizing process as normalizing. The method further includes, if the lossy representation of the given image matches the reference representation, designating the given image similar to the reference image. The method yet also includes, if the lossy representation of the given image does not match the reference representation, designating the given image dissimilar to the reference image.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: March 1, 2022
    Assignee: Trend Micro Incorporated
    Inventors: Jonathan James Oliver, Yun-Chian Chang
  • IMAGE DETECTION METHODS AND APPARATUS
    Publication number: 20200026969
    Abstract: A method for designating a given image as similar/dissimilar with respect to a reference image is provided. The method includes normalizing the image. Normalizing includes performing pre-processing and a lossy compression on the given image to obtain a lossy representation. The pre-processing includes at least one of cropping, fundamental extracting, gray scale converting and lower color bit converting. The method also includes comparing the lossy representation of the given image with a reference representation, which is a version of a reference spam image after the reference spam image has undergone a similar normalizing process as normalizing. The method further includes, if the lossy representation of the given image matches the reference representation, designating the given image similar to the reference image. The method yet also includes, if the lossy representation of the given image does not match the reference representation, designating the given image dissimilar to the reference image.
    Type: Application
    Filed: August 8, 2019
    Publication date: January 23, 2020
    Applicant: Trend Micro Incorporated
    Inventors: Jonathan James OLIVER, Yun-Chian CHANG
  • IMAGE DETECTION METHODS AND APPARATUS
    Publication number: 20080159632
    Abstract: A method for designating a given image as similar/dissimilar with respect to a reference image is provided. The method includes normalizing the image. Normalizing includes performing pre-processing and a lossy compression on the given image to obtain a lossy representation. The pre-processing includes at least one of cropping, fundamental extracting, gray scale converting and lower color bit converting. The method also includes comparing the lossy representation of the given image with a reference representation, which is a version of a reference spam image after the reference spam image has undergone a similar normalizing process as normalizing. The method further includes, if the lossy representation of the given image matches the reference representation, designating the given image similar to the reference image. The method yet also includes, if the lossy representation of the given image does not match the reference representation, designating the given image dissimilar to the reference image.
    Type: Application
    Filed: December 28, 2006
    Publication date: July 3, 2008
    Inventors: Jonathan James Oliver, Yun-Chian Chang