Patents by Inventor Xiwen Zhao

Xiwen Zhao 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).

  • Content watermarking
    Patent number: 9773290
    Abstract: In an embodiment, a method of decoding a watermarked video includes receiving a video including a watermark and three or more pilot signals. The method includes attempting to detect the watermark and retrieve a corresponding message in the video based on one or more decoding starting points of the video. The method includes outputting the message if the attempt is successful. If the attempt fails, the method includes detecting the pilot signals in the video; based on the detected pilot signals, estimating a geometric distortion of the video; inverting the geometric distortion for the video to generate a warped video; and attempting to detect the watermark and retrieve the corresponding message in the warped video based on one or more decoding starting points of the warped video.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: September 26, 2017
    Assignee: QUMU CORPORATION
    Inventors: Xiwen Zhao, Priyadarshee Deeptarag Mathur
  • CONTENT WATERMARKING
    Publication number: 20160155208
    Abstract: In an embodiment, a method of decoding a watermarked video includes receiving a video including a watermark and three or more pilot signals. The method includes attempting to detect the watermark and retrieve a corresponding message in the video based on one or more decoding starting points of the video. The method includes outputting the message if the attempt is successful. If the attempt fails, the method includes detecting the pilot signals in the video; based on the detected pilot signals, estimating a geometric distortion of the video; inverting the geometric distortion for the video to generate a warped video; and attempting to detect the watermark and retrieve the corresponding message in the warped video based on one or more decoding starting points of the warped video.
    Type: Application
    Filed: January 25, 2016
    Publication date: June 2, 2016
    Inventors: Xiwen Zhao, Priyadarshee Deeptarag Mathur
  • Content watermarking
    Patent number: 9245310
    Abstract: In an embodiment, a method of watermarking a video includes generating three or more pilot signals. The method also includes generating a watermark. The method also includes embedding the three or more of the pilot signals in first frames of the video. The method also includes embedding the watermark in second frames of the video according to a watermarking just-noticeable-difference (JND) model. The second frames may be non-overlapping with the first frames.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 26, 2016
    Assignee: QUMU CORPORATION
    Inventors: Xiwen Zhao, Priyadarshee Deeptarag Mathur
  • CONTENT WATERMARKING
    Publication number: 20140270331
    Abstract: In an embodiment, a method of watermarking a video includes generating three or more pilot signals. The method also includes generating a watermark. The method also includes embedding the three or more of the pilot signals in first frames of the video. The method also includes embedding the watermark in second frames of the video according to a watermarking just-noticeable-difference (JND) model. The second frames may be non-overlapping with the first frames.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: RIMAGE CORPORATION
    Inventors: Xiwen Zhao, Priyadarshee Deeptarag Mathur
  • Saucer-shaped light
    Patent number: D871645
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: December 31, 2019
    Assignee: Guangdong Five Development Industrial Co., Ltd.
    Inventor: Xiwen Zhao