Patents by Inventor Qianlu Lin

Qianlu Lin 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).

  • Patent number: 8837823
    Abstract: Disclosed herein are a system and method for performing foreground/background separation on an input image. The method pre-classifies (1010, 1020) an input visual element in the input image as one of a first element type and a second element type, dependent upon a predetermined characteristic. The method performs a first foreground/background separation (1030) on the input visual element that has been pre-classified as the first element type, wherein the first foreground/background separation step is based on color data and brightness data of the input visual element. The method performs a second foreground/background separation (1040) on the input visual element that has been pre-classified as the second element type, wherein the second foreground/background separation step is based on color data, brightness data, and texture of the input visual element.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: September 16, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ashley Partis, Amit Kumar Gupta, Peter Jan Pakulski, Qianlu Lin
  • Publication number: 20120257053
    Abstract: A method and system for updating a visual element model of a scene model associated with a scene captured in an image sequence. The visual element model includes a set of mode models for a visual t corresponding to a location of the scene. The method identifies a first mode model from the set of mode models for the visual element model as a candidate deletion mode model. The method then removes the identified candidate deletion mode model from the set of mode models for the visual element model, to update the visual element model for the video sequence, when a first temporal attribute associated with the candidate deletion mode model satisfies a first threshold and a second temporal attribute associated with a second mode model in the set of mode models satisfies a second threshold (Tk).
    Type: Application
    Filed: April 4, 2012
    Publication date: October 11, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Amit Kumar Gupta, Qianlu Lin
  • Publication number: 20120106837
    Abstract: Disclosed herein are a system and method for performing foreground/background separation on an input image. The method pre-classifies (1010, 1020) an input visual element in the input image as one of a first element type and a second element type, dependent upon a predetermined characteristic. The method performs a first foreground/background separation (1030) on the input visual element that has been pre-classified as the first element type, wherein the first foreground/background separation step is based on colour data and brightness data of the input visual element. The method performs a second foreground/background separation (1040) on the input visual element that has been pre-classified as the second element type, wherein the second foreground/background separation step is based on colour data, brightness data, and texture of the input visual element.
    Type: Application
    Filed: October 25, 2011
    Publication date: May 3, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Ashley Partis, Amit Kumar Gupta, Peter Jan Pakulski, Qianlu Lin