Patents by Inventor Yichuan Hu

Yichuan Hu 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).

  • Video shot change detection based on color features, object features, and reliable motion information
    Patent number: 8326042
    Abstract: The present invention provides a moving image analyzing apparatus, method and system. The moving image analyzing apparatus comprises a moving image reading means for reading a moving image, a region-of-interest extracting means for extracting a region-of-interest from each frame in the moving image, an object feature extracting means for extracting an object feature in the region-of-interest or a region adjacent to the region-of-interest, and a shot change detecting means for detecting a shot change on the basis of the color feature of image, the object feature of the region-of-interest, and the differences of the motion information among the images of each frame. By estimating the reliability of the motion information within an image, the present invention can eliminate the shot change which is incorrectly detected according to the color distribution feature and the dimensional feature of the region-of-interest, thereby improving the detection accuracy of shot change.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: December 4, 2012
    Assignee: Sony (China) Limited
    Inventors: Weiguo Wu, Takayuki Yoshigahara, Bo Han, Yichuan Hu
  • MOVING IMAGE ANALYZING APPARATUS, METHOD AND SYSTEM
    Publication number: 20080310727
    Abstract: The present invention provides a moving image analyzing apparatus, method and system. The moving image analyzing apparatus comprises a moving image reading means for reading a moving image, a region-of-interest extracting means for extracting a region-of-interest from each frame in the moving image, an object feature extracting means for extracting an object feature in the region-of-interest or a region adjacent to the region-of-interest, and a shot change detecting means for detecting a shot change on the basis of the color feature of image, the object feature of the region-of-interest, and the differences of the motion information among the images of each frame. By estimating the reliability of the motion information within an image, the present invention can eliminate the shot change which is incorrectly detected according to the color distribution feature and the dimensional feature of the region-of-interest, thereby improving the detection accuracy of shot change.
    Type: Application
    Filed: June 16, 2008
    Publication date: December 18, 2008
    Applicant: Sony (China) Limited
    Inventors: Weiguo Wu, Takayuki Yoshigahara, Bo Han, Yichuan Hu