Patents by Inventor Bradley Vincent Stuart

Bradley Vincent Stuart 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).

  • Publication number: 20200372678
    Abstract: An eye tracking system can include an eye-tracking camera configured to obtain images of the eye at different exposure times or different frame rates. For example, longer exposure images of the eye taken at a longer exposure time can show iris or pupil features, and shorter exposure, glint images can show peaks of glints reflected from the cornea. The shorter exposure glint images may be taken at a higher frame rate (than the longer exposure images) for accurate gaze prediction. The shorter exposure glint images can be analyzed to provide glint locations to subpixel accuracy. The longer exposure images can be analyzed for pupil center or center of rotation. The eye tracking system can predict future gaze direction, which can be used for foveated rendering by a wearable display system. In some instances, the eye-tracking system may estimate the location of a partially or totally occluded glint.
    Type: Application
    Filed: May 19, 2020
    Publication date: November 26, 2020
    Inventors: Daniel Farmer, David Cohen, Bradley Vincent Stuart
  • Publication number: 20200249755
    Abstract: Systems and methods for eye tracking calibration in a wearable system are described. The wearable system can present three-dimensional (3D) virtual content and allow a user to interact with the 3D virtual content using eye gaze. During an eye tracking calibration, the wearable system can validate that a user is indeed looking at a calibration target while the eye tracking data is acquired. The validation may be performed based on data associated with the user's head pose and vestibulo-ocular reflex.
    Type: Application
    Filed: April 22, 2020
    Publication date: August 6, 2020
    Inventors: Benjamin Joseph Uscinski, Yan Xu, Bradley Vincent Stuart
  • Patent number: 10671160
    Abstract: Systems and methods for eye tracking calibration in a wearable system are described. The wearable system can present three-dimensional (3D) virtual content and allow a user to interact with the 3D virtual content using eye gaze. During an eye tracking calibration, the wearable system can validate that a user is indeed looking at a calibration target while the eye tracking data is acquired. The validation may be performed based on data associated with the user's head pose and vestibulo-ocular reflex.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: June 2, 2020
    Assignee: Magic Leap, Inc.
    Inventors: Benjamin Joseph Uscinski, Yan Xu, Bradley Vincent Stuart
  • Publication number: 20200043236
    Abstract: A display system includes a head-mounted display configured to project light, having different amounts of wavefront divergence, to an eye of a user to display virtual image content appearing to be disposed at different depth planes. The wavefront divergence may be changed in discrete steps, with the change in steps being triggered based upon whether the user is fixating on a particular depth plane. The display system may be calibrated for switching depth planes for a main user. Upon determining that a guest user is utilizing the system, rather than undergoing a full calibration, the display system may be configured to switch depth planes based on a rough determination of the virtual content that the user is looking at. The virtual content has an associated depth plane and the display system may be configured to switch to the depth plane of that virtual content.
    Type: Application
    Filed: August 2, 2019
    Publication date: February 6, 2020
    Inventors: Samuel A. Miller, Lomesh Agarwal, Lionel Ernest Edwin, Ivan Li Chuen Yeoh, Daniel Farmer, Sergey Fyodorovich Prokushkin, Yonatan Munk, Edwin Joseph Selker, Erik Fonseka, Paul M. Greco, Jeffrey Scott Sommers, Bradley Vincent Stuart, Shiuli Das, Suraj Manjunath Shanbhag
  • Publication number: 20190243448
    Abstract: A display system can include a head-mounted display configured to project light to an eye of a user to display virtual image content at different amounts of divergence and collimation. The display system can include an inward-facing imaging system images the user's eye and processing electronics that are in communication with the inward-facing imaging system and that are configured to obtain an estimate of a center of rotation of the user's eye. The display system may render virtual image content with a render camera positioned at the determined position of the center of rotation of said eye.
    Type: Application
    Filed: January 17, 2019
    Publication date: August 8, 2019
    Inventors: Samuel A. Miller, Lomesh Agarwal, Lionel Ernest Edwin, Ivan Li Chuen Yeoh, Daniel Farmer, Sergey Fyodorovich Prokushkin, Yonatan Munk, Edward Joseph Selker, Bradley Vincent Stuart
  • Publication number: 20180348861
    Abstract: Systems and methods for eye tracking calibration in a wearable system are described. The wearable system can present three-dimensional (3D) virtual content and allow a user to interact with the 3D virtual content using eye gaze. During an eye tracking calibration, the wearable system can validate that a user is indeed looking at a calibration target while the eye tracking data is acquired. The validation may be performed based on data associated with the user's head pose and vestibulo-ocular reflex.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 6, 2018
    Inventors: Benjamin Joseph Uscinski, Yan Xu, Bradley Vincent Stuart