VIRTUAL REALITY DISPLAY BASED ON ORIENTATION OFFSET

1 . A method to display virtual reality content on a head-mounted display, the method comprising:

determining a body orientation;

identifying a first portion of the virtual reality content based on the body orientation;

determining a head-body orientation offset;

selecting a second portion of the virtual reality content based on the head-body orientation offset, wherein an offset of the second portion from the first portion corresponds to the head-body orientation offset; and

displaying the selected second portion of the virtual reality content on the head-mounted display.

2 . The method of claim 1 , further comprising receiving an orientation signal from a body sensor, and wherein determining the body orientation comprises determining the body orientation based on the orientation signal.

3 . The method of claim 2 , wherein:

the body sensor includes one or more of a first foot sensor and a second foot sensor,

the orientation signal includes one or more of a first signal from the first foot sensor and a second signal from the second foot sensor.

4 . The method of claim 3 , further comprising:

determining a first orientation of the first foot sensor based on the first signal; and

determining a second orientation of the second foot sensor based on the second signal;

and wherein determining the body orientation comprises:

determining an orientation pattern based on the first orientation and the second orientation; and

estimating a body direction based on the orientation pattern.

8 . The method of claim 4 , further comprising determining an initial toeing pattern, and wherein determining the orientation pattern comprises determining the orientation pattern based on the first orientation, the second orientation, and the toeing pattern.

6 . The method of claim 2 , further comprising estimating a distribution pattern associated with a plurality of body sensors, and wherein determining the body orientation further comprises determining the body orientation based on a plurality of orientation signals from the plurality of body sensors and the distribution pattern.

7 . The method of claim 1 , further comprising determining a head orientation, and wherein determining the head-body orientation offset comprises determining the head-body orientation offset based on the body orientation and the head orientation.

8 . The method of claim 1 , wherein the first portion and the second portion of the virtual reality content include two distinct user interfaces.

9 . The method of claim 8 , wherein the at least one of the two distinct user interfaces includes an application user interface.

10 . The method of claim 8 , wherein the at least one of the two distinct user interfaces includes a desktop user interface.

11 . A virtual reality content display system comprising:

a display device configured to display virtual reality content;

a head sensor configured to determine a head orientation;

at least one body sensor configured to provide at least one body orientation signal; and

a processor block coupled to the display device, the head sensor, and the at least one body sensor, and configured to:

receive the at least one body orientation signal from the at least one body sensor;

determine a first portion of the virtual reality content based on the at least one body orientation signal;

receive a head orientation signal from the head sensor;

determine a head-body orientation offset based on the head orientation signal and the at least one body orientation signal;

select a second portion of the virtual reality content based on the head-body orientation offset; and

send the selected second portion to the display device for display.

12 . The virtual reality content display system of claim 11 , wherein:

the at least one body sensor includes a first shoe sensor and a second shoe sensor,

the at least one body orientation signal includes a first signal from the first shoe sensor and a second signal from the second shoe sensor.

13 . The virtual reality content display system of claim 12 , wherein the processor block is further configured to:

determine a first orientation of the first shoe sensor based on the first signal;

determine a second orientation of the second shoe sensor based on the second signal;

determine an orientation pattern based on the first orientation and the second orientation; and

estimate a body direction based on the orientation pattern to determine the first portion of the virtual reality content and determine the head-body orientation offset.

14 . The virtual reality content display system of claim 13 , wherein the processor block is further configured to:

determine an initial toeing pattern, and

determine the orientation pattern based on the first orientation, the second orientation, and the toeing pattern.

15 . The virtual reality content display system of claim 1 , wherein the processor block is further configured to:

estimate a distribution pattern associated with the at least one body sensor, and

use the distribution pattern to determine the first portion of the virtual reality content and the head-body orientation offset.

16 . The virtual reality content display system of claim 11 , wherein the processor block is further configured to:

select a portion of the virtual reality content among a plurality of portions of the virtual reality content based on the head-body orientation offset.

17 . The virtual reality content display system of claim 16 , wherein the plurality of portions of the virtual reality content include distinct application user interfaces.

18 . The virtual reality content display system of claim 17 , wherein the application user interfaces include productivity application user interfaces.

19 . A virtual reality content system comprising:

a memory configured to store virtual reality content; and

a processor block coupled to the memory and configured to:

determine a body orientation;

determine a first portion of the virtual reality content based on the body orientation;

determine a head orientation;

determine a head-body orientation offset based on the head orientation and the body orientation;

re-orient the virtual reality content based on the first portion and the head-body orientation offset; and

send the re-oriented virtual reality content to a display device.

20 . The virtual reality content system of claim 19 , wherein the processor block is further configured to:

receive at least one orientation signal from a body sensor, and

use the orientation signal to determine the body orientation.

21 . The virtual reality content system of claim 20 , wherein the orientation signal includes one or more of a first foot orientation signal and a second foot orientation signal.

22 . The virtual reality content system of claim 19 , wherein the processor block is further configured to:

determine an orientation pattern based on one or more of the first orientation and the second orientation; and

estimate a body direction based on the orientation pattern to determine the body orientation.

23 . The virtual reality content system of claim 19 , wherein the processor block is further configured to:

determine an initial toeing pattern, and

determine the orientation pattern based on one or more of the first orientation, the second orientation, and the toeing pattern.

24 . The virtual reality content system of claim 23 , wherein the processor block is further configured to:

estimate a distribution pattern associated with the body orientation, and

determine the body orientation based on the orientation signal and the distribution pattern.