Patents by Inventor Xinju Li

Xinju 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).

  • Hough transform method for linear ribbon and circular ring detection in the gradient domain
    Patent number: 8526731
    Abstract: A method for converting a portion of an image from a first domain to a second domain. The method may apply a Hough transform on the converted portion of the image, including calculating a range of angles for each tested pixel q relative to a center pixel p, quantizing the range of angles into a plurality of bins, voting each tested pixel q using a range of bins using a weighted voting schema; and detecting one or more features in the portion of the image. The methods may be implemented by program instructions executing in parallel on CPU(s) or GPUs.
    Type: Grant
    Filed: September 15, 2012
    Date of Patent: September 3, 2013
    Assignee: Adobe Systems Incorporated
    Inventors: Xinju Li, Simon Chen, Jen-Chen Chien
  • Hough Transform Method for Linear Ribbon and Circular Ring Detection in the Gradient Domain
    Publication number: 20130011057
    Abstract: A method for converting a portion of an image from a first domain to a second domain. The method may apply a Hough transform on the converted portion of the image, including calculating a range of angles for each tested pixel q relative to a center pixel p, quantizing the range of angles into a plurality of bins, voting each tested pixel q using a range of bins using a weighted voting schema; and detecting one or more features in the portion of the image. The methods may be implemented by program instructions executing in parallel on CPU(s) or GPUs.
    Type: Application
    Filed: September 15, 2012
    Publication date: January 10, 2013
    Inventors: Xinju Li, Simon Chen, Jen-Chan Chien
  • Hough transform method for linear ribbon and circular ring detection in the gradient domain
    Patent number: 8320670
    Abstract: A method for converting a portion of an image from a first domain to a second domain. The method may apply a Hough transform on the converted portion of the image, including calculating a range of angles for each tested pixel q relative to a center pixel p, quantizing the range of angles into a plurality of bins, voting each tested pixel q using a range of bins using a weighted voting schema; and detecting one or more features in the portion of the image. The methods may be implemented by program instructions executing in parallel on CPU(s) or GPUs.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: November 27, 2012
    Assignee: Adobe Systems Incorporated
    Inventors: Xinju Li, Simon Chen, Jen-Chan Chien