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Predicting head movement for rendering virtual objects in augmented or virtual reality systems

  • US 10,134,186 B2
  • Filed: 05/03/2015
  • Issued: 11/20/2018
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. A user display device, comprising:

  • a housing frame mountable on a head of a user;

    a lens mountable on the housing frame;

    a projection subsystem coupled to the housing frame to determine a location of appearance of a display object in a field of view of the user based at least in part on a prediction of a predicted head movement of the user, and to project the display object to the user based on the determined location of appearance of the display object, wherein the location of appearance of the display object is moved in response to the predicted head movement exceeding a nominal head movement value and the projection subsystem partially compensating for a perceived pixel spreading in response to the predicted head movement by decreasing both a size and an intensity of a first set of pixels in an image frame associated with the display object based at least on respective size and intensity of another set of pixels in the image, wherein the nominal head movement value corresponds to a nominal speed or a nominal acceleration; and

    a first pair of cameras mountable on the housing frame to capture a field of view image as seen by eyes of the user, wherein the field of view image contains at least one physical object, wherein the captured field of view image is used to gather information regarding movements of the head of the user, wherein the information regarding movements of the head of the user only consists of a center of attention of the user, an orientation of the head of the user, a direction of the head of the user, a speed of movement of the head of the user, an acceleration of the head of the user and a distance of the head of the user in relation to a local environment of the user.

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