Patents by Inventor Kun Ai

Kun Ai 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 for detecting horizontal and gravity directions of an image
    Patent number: 9886775
    Abstract: The disclosure relates to a method for detection of the horizontal and gravity directions of an image, the method comprising: selecting equidistant sampling points in an image at an interval of the radius of the sampling circle of an attention focus detector; placing the center of the sampling circle of the attention focus detector on each of the sampling points, and using the attention focus detector to acquire attention focus coordinates and the corresponding significant orientation angle, and all the attention focus coordinates and the corresponding significant orientation angles constitute a set ?p; using an orientation perceptron to determine a local orientation angle and a weight at the attention focus according to the gray image information, and generating a local orientation function; obtaining a sum of each of the local orientation functions as an image direction function; obtaining a function MCGCS(?), and further obtaining the horizontal and gravity identification angles.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: February 6, 2018
    Assignee: Institute of Automation Chinese Academy of Sciences
    Inventors: Zhiqiang Cao, Xilong Liu, Chao Zhou, Min Tan, Kun Ai
  • METHOD FOR DETECTING HORIZONTAL AND GRAVITY DIRECTIONS OF AN IMAGE
    Publication number: 20170046855
    Abstract: The disclosure relates to a method for detection of the horizontal and gravity directions of an image, the method comprising: selecting equidistant sampling points in an image at an interval of the radius of the sampling circle of an attention focus detector; placing the center of the sampling circle of the attention focus detector on each of the sampling points, and using the attention focus detector to acquire attention focus coordinates and the corresponding significant orientation angle, and all the attention focus coordinates and the corresponding significant orientation angles constitute a set ?p; using an orientation perceptron to determine a local orientation angle and a weight at the attention focus according to the gray image information, and generating a local orientation function; obtaining a sum of each of the local orientation functions as an image direction function; obtaining a function MCGCS(?), and further obtaining the horizontal and gravity identification angles.
    Type: Application
    Filed: April 28, 2014
    Publication date: February 16, 2017
    Inventors: Zhiqiang Cao, Xilong Liu, Chao Zhou, Min Tan, Kun Ai