Patents by Inventor Sanglu Lu

Sanglu Lu 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).

  • Systems, methods and techniques for inputting text into mobile devices using a camera-based keyboard
    Patent number: 9898809
    Abstract: Systems, methods and techniques are provided for interacting with mobile devices using a camera-based keyboard. The system comprises a processor system including at last one processor. The processor system is configured to at least capture a plurality of images in connection with the keyboard and at least one hand typing on the keyboard via the camera. Based on the plurality of captured images, the processor system is further configured to locate the keyboard, extract at least a portion of the keys on the keyboard, extract a hand, and detect a fingertip of the extracted hand. After that, a keystroke may be detected and localized through tracking the detected fingertip in at least one of the plurality of captured images, and a character corresponding to the localized keystroke may be determined.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: February 20, 2018
    Assignees: NANJING UNIVERSITY, COLLEGE OF WILLIAM AND MARY
    Inventors: Lei Xie, Yafeng Yin, Qun Li, Sanglu Lu
  • SYSTEMS, METHODS AND TECHNIQUES FOR INPUTTING TEXT INTO MOBILE DEVICES USING A CAMERA-BASED KEYBOARD
    Publication number: 20170131760
    Abstract: Systems, methods and techniques are provided for interacting with mobile devices using a camera-based keyboard. The system comprises a processor system including at last one processor. The processor system is configured to at least capture a plurality of images in connection with the keyboard and at least one hand typing on the keyboard via the camera. Based on the plurality of captured images, the processor system is further configured to locate the keyboard, extract at least a portion of the keys on the keyboard, extract a hand, and detect a fingertip of the extracted hand. After that, a keystroke may be detected and localized through tracking the detected fingertip in at least one of the plurality of captured images, and a character corresponding to the localized keystroke may be determined.
    Type: Application
    Filed: November 10, 2015
    Publication date: May 11, 2017
    Applicants: Nanjing University, College of William and Mary
    Inventors: Lei XIE, Yafeng Yin, Qun Li, Sanglu Lu