Patents by Inventor Yu-Nan Pan

Yu-Nan Pan 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).

  • Patent number: 8670464
    Abstract: A multi-view video coding method includes the following steps: an un-coded group of pictures (GOP) is obtained from an un-coded multi-view video. Wherein, the un-coded GOP includes picture sets of several un-coded views. Several present coding views are selected from the un-coded views according to view levels of the un-coded views. Wherein, picture sets of the present coding views includes several present coding pictures. A target coding picture is selected from the present coding pictures according to view levels of and temporal levels of the present coding pictures. At least a coded reference picture, which is referenced by the target coding picture for prediction, is obtained. The target coding picture is coded according to the coded reference picture. In addition, a multi-view video decoding method is also disclosed.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: March 11, 2014
    Assignee: National Central University
    Inventors: Tsung-Han Tsai, Te-Yuang Shen, Yu-Nan Pan
  • Patent number: 8090021
    Abstract: A method for motion search between video frames with multiple blocks is disclosed. The present invention provides an effective edge detection-prediction hexagon search algorithm (EDPHS algorithm). The method uses edge values and the distribution characteristics of motion vector and further overcomes the drawback of the conventional hexagon-based search algorithm (HEXBS algorithm). In this way, the present invention has less search points during searching. Through experiments, the present invention, without affecting the compressed video quality, reduces the number of search points by about 80%˜98% in comparison with the diamond search algorithm (DS algorithm) and reduces the number of search points by about 75%˜97% in comparison with the HEXBS algorithm. The advantages make the present invention suitable for the realizing real-time image compression.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: January 3, 2012
    Assignee: National Central University
    Inventors: Tsung-Han Tsai, Yu-Nan Pan
  • Publication number: 20100316121
    Abstract: A multi-view video coding method includes the following steps: an un-coded group of pictures (GOP) is obtained from an un-coded multi-view video. Wherein, the un-coded GOP includes picture sets of several un-coded views. Several present coding views are selected from the un-coded views according to view levels of the un-coded views. Wherein, picture sets of the present coding views includes several present coding pictures. A target coding picture is selected from the present coding pictures according to view levels of and temporal levels of the present coding pictures. At least a coded reference picture, which is referenced by the target coding picture for prediction, is obtained. The target coding picture is coded according to the coded reference picture. In addition, a multi-view video decoding method is also disclosed.
    Type: Application
    Filed: September 16, 2009
    Publication date: December 16, 2010
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventors: Tsung-Han TSAI, Te-Yuang SHEN, Yu-Nan PAN
  • Publication number: 20070258521
    Abstract: A method for motion search between video frames with multiple blocks is disclosed. The present invention provides an effective edge detection-prediction hexagon search algorithm (EDPHS algorithm). The method uses edge values and the distribution characteristics of motion vector and further overcomes the drawback of the conventional hexagon-based search algorithm (HEXBS algorithm). In this way, the present invention has less search points during searching. Through experiments, the present invention, without affecting the compressed video quality, reduces the number of search points by about 80%˜98% in comparison with the diamond search algorithm (DS algorithm) and reduces the number of search points by about 75%˜97% in comparison with the HEXBS algorithm. The advantages make the present invention suitable for the realizing real-time image compression.
    Type: Application
    Filed: December 4, 2006
    Publication date: November 8, 2007
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventors: Tsung-Han Tsai, Yu-Nan Pan