Patents by Inventor Tsung-Chan Li

Tsung-Chan Li 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).

  • Moving object detection method and image processing system for moving object detection
    Patent number: 8922651
    Abstract: A moving object detection method and an image processing system thereof are provided. First, a pixel-wise distance of a received image to a reference image is computed to obtain a distance map. A histogram analysis is performed on the distance map to obtain a distance distribution. An entropy value of the distance distribution is computed and a peak distance value which is with a maximum occurrence probability in the distance distribution is searched out. Then, by using a mapping rule, the entropy value and the peak distance value are transformed into a decision threshold value. The decision threshold value is applied in classifying the pixels of the distance map into a group of foreground attributes and a group of background attributes and thereby moving objects in the current image are obtained.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: December 30, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Tai-Hui Huang, Tsung-Chan Li, Wen-Hao Wang
  • MOVING OBJECT DETECTION METHOD AND IMAGE PROCESSING SYSTEM FOR MOVING OBJECT DETECTION
    Publication number: 20120154580
    Abstract: A moving object detection method and an image processing system thereof are provided. First, a pixel-wise distance of a received image to a reference image is computed to obtain a distance map. A histogram analysis is performed on the distance map to obtain a distance distribution. An entropy value of the distance distribution is computed and a peak distance value which is with a maximum occurrence probability in the distance distribution is searched out. Then, by using a mapping rule, the entropy value and the peak distance value are transformed into a decision threshold value. The decision threshold value is applied in classifying the pixels of the distance map into a group of foreground attributes and a group of background attributes and thereby moving objects in the current image are obtained.
    Type: Application
    Filed: April 13, 2011
    Publication date: June 21, 2012
    Inventors: Tai-Hui Huang, Tsung-Chan Li, Wen-Hao Wang