Patents by Inventor Xun-Jia Zhang

Xun-Jia Zhang 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).

  • Stereo vision based dice recognition system and stereo vision based dice recognition method for uncontrolled environments
    Patent number: 8724888
    Abstract: A dice recognition system and a dice recognition method for uncontrolled environments are provided. In the present invention, the number of dot on a dice is automatically recognized in an uncontrolled environment by using multiple cameras. The present dice recognition system is different in at least two aspects from any existing automatic dice recognition system which uses a single camera for recognizing dice in an enclosed environment. Firstly, an existing automatic dice recognition system uses a single camera to obtain planar images for dice recognition, while the present dice recognition system uses multiple cameras to obtain different viewpoints images for dice recognition. Secondly, the present dice recognition system is designed for uncontrolled environments, and which can be applied to an open-table game in a general gambling place for dice recognition without changing the original dice, dice cup, and other related objects.
    Type: Grant
    Filed: May 30, 2011
    Date of Patent: May 13, 2014
    Assignee: National Taiwan University of Science and Technology
    Inventors: Gee-Sern Hsu, Xun-Jia Zhang
  • STEREO VISION BASED DICE RECOGNITION SYSTEM AND STEREO VISION BASED DICE RECOGNITION METHOD FOR UNCONTROLLED ENVIRONMENTS
    Publication number: 20120106831
    Abstract: A dice recognition system and a dice recognition method for uncontrolled environments are provided. In the present invention, the number of dot on a dice is automatically recognized in an uncontrolled environment by using multiple cameras. The present dice recognition system is different in at least two aspects from any existing automatic dice recognition system which uses a single camera for recognizing dice in an enclosed environment. Firstly, an existing automatic dice recognition system uses a single camera to obtain planar images for dice recognition, while the present dice recognition system uses multiple cameras to obtain different viewpoints images for dice recognition. Secondly, the present dice recognition system is designed for uncontrolled environments, and which can be applied to an open-table game in a general gambling place for dice recognition without changing the original dice, dice cup, and other related objects.
    Type: Application
    Filed: May 30, 2011
    Publication date: May 3, 2012
    Applicant: National Taiwan University of Science and Technology
    Inventors: Gee-Sern Hsu, Xun-Jia Zhang