PERCEPTION BASED PREDICTIVE TRACKING FOR HEAD MOUNTED DISPLAYS

摘要

There is disclosed a method of and apparatus for predictive tracking for a head mounted display. The method comprises obtaining one or more three-dimensional angular velocity measurements from a sensor monitoring the head mounted display and setting a prediction interval based upon the one or more three-dimensional angular velocity measurements such that the prediction interval is substantially zero when the head mounted display is substantially stationary and the prediction interval increases up to a predetermined latency interval when the head mounted display is moving at an angular velocity of or above a predetermined threshold. The method further includes predicting a three-dimensional orientation for the head mounted display to create a predicted orientation at a time corresponding to the prediction interval, and generating a rendered image corresponding to the predicted orientation for presentation on the head mounted display.

主权项

1. A method of predictive tracking for a head mounted display comprising:
obtaining one or more three-dimensional angular velocity measurements from a sensor monitoring the head mounted display; setting a prediction interval based upon the one or more three-dimensional angular velocity measurements such that the prediction interval is substantially zero when the one or more angular velocity measurements indicate that the head mounted display is substantially stationary and the prediction interval increases up to a predetermined latency interval when the one or more angular velocity measurements indicate that the head mounted display is moving at an angular velocity of or above a predetermined threshold; predicting a three-dimensional orientation for the head mounted display using the one or more three-dimensional angular velocity measurements extrapolated over the prediction interval to create a predicted orientation at a time corresponding to the prediction interval; and generating a rendered image corresponding to the predicted orientation for presentation on the head mounted display.