Patents by Inventor Yung-ki Lee

Yung-ki Lee 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 AND APPARATUS FOR LOSSLESS ENCODING AND DECODING
    Publication number: 20150139328
    Abstract: A lossless moving picture encoding and decoding method and apparatus are provided by which when intra prediction of a block with a predetermined size is performed, the compression ratio is increased by using a pixel in a block to be predicted. The lossless moving picture encoding method includes: predicting each of pixel values in an M×N block to be predicted by using a pixel in the M×N block closest to the object pixel value in a prediction direction determined by an encoding mode; and entropy coding a difference between the predicted pixel value and the pixel value to be predicted. According to this method, the compression ratio becomes much higher than that of a conventional lossless encoding method.
    Type: Application
    Filed: January 27, 2015
    Publication date: May 21, 2015
    Applicants: SEJONG INDUSTRY-ACADEMY COOPERATION FOUNDATION, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yung-lyul LEE, Ki-hoon HAN, Yung-ki LEE
  • Method and apparatus for lossless encoding and decoding
    Publication number: 20050271142
    Abstract: A lossless moving picture encoding and decoding method and apparatus are provided by which when intra prediction of a block with a predetermined size is performed, the compression ratio is increased by using a pixel in a block to be predicted. The lossless moving picture encoding method includes: predicting each of pixel values in an M×N block to be predicted by using a pixel in the M×N block closest to the object pixel value in a prediction direction determined by an encoding mode; and entropy coding a difference between the predicted pixel value and the pixel value to be predicted. According to this method, the compression ratio becomes much higher than that of a conventional lossless encoding method.
    Type: Application
    Filed: June 7, 2005
    Publication date: December 8, 2005
    Inventors: Yung-Iyul Lee, Ki-hoon Han, Yung-ki Lee