Feedback wearable

1. A method comprising:

receiving, at data processing hardware, an inertial measurement from an inertial measurement sensor disposed on a user, the inertial measurement sensor comprising a tri-axial accelerometer and a tri-axial gyroscope, the user defining a vertical gravitational axis and a forward travel direction, the user having a pose defined by a sway angle of the user relative to the vertical gravitational axis and a sway direction of the user relative to the forward travel direction, the inertial measurement indicative of a movement of the user from a first pose to a second pose away from the first pose;

determining, by the data processing hardware, a movement vector defining the movement of the user from the first pose to the second pose based on the inertial measurement, the movement vector relative to the first pose;

determining, by the data processing hardware, whether the movement vector satisfies a threshold movement vector; and

when the movement vector satisfies a threshold movement vector, instructing, by the data processing hardware, at least one actuator to apply a feedback response on the user, the at least one actuator disposed on a band circumscribing a portion of the user, the feedback response comprising at least one force that is substantially opposite and proportional to the movement vector.

2. The method of claim 1 , wherein determining whether the movement vector satisfies a threshold movement vector comprises determining whether the movement vector extends beyond a movement envelope defined by a collection of envelope movement vectors relative to the vertical gravitational axis and the forward travel direction of the user at the first pose.

3. The method of claim 1 , wherein the movement vector comprises an angular displacement of the user from the first pose to the second pose.

4. The method of claim 1 , wherein the movement vector comprises a horizontal translation relative to the vertical gravitational axis of the user from the first pose to the second pose.

5. The method of claim 1 , wherein the user has a center of gravity and the vertical gravitational axis intersects the center of gravity of the user along a direction of gravity at the first pose.

6. The method of claim 1 , wherein the at least one inertial measurement sensor comprises at least one of a tri-axial accelerometer, a tri-axial magnetometer, or a tri-axial gyroscope.

7. The method of claim 1 , wherein the at least one actuator and the inertial measurement sensor are disposed on the band.

8. The method of claim 1 , wherein the at least one actuator comprises at least one of an electro-mechanical polymer, a piezo-electric actuator, a solenoid actuator, a pneumatic actuator, a hydraulic actuator, or a linear actuator.

9. The method of claim 1 , wherein instructing the at least one actuator to apply the feedback response on the user further comprises:

receiving a video feed of an environment about the user;

augmenting the video feed by adding a stationary virtual object to the video feed, the stationary virtual object indicating the vertical gravitational axis; and

instructing a display of the augmenting video feed on an electronic display in communication with the data processing hardware.

10. The method of claim 1 , wherein the feedback response comprises at least one of a force at least partially opposite to and proportional to the movement vector, an audible signal, an emitted light, or a vibration.

11. A wearable comprising:

a band;

actuators disposed on the band, the actuators circumferentially spaced along the band, each actuator configured to apply a force to a user donning the band;

an inertial measurement sensor comprising a tri-axial accelerometer and a tri-axial gyroscope; and

controller in communication with the actuators and the inertial measurement sensor, the controller configured to perform operations comprising:

receiving an inertial measurement from the inertial measurement sensor, the user defining a vertical gravitational axis and a forward travel direction, the user having a pose defined by a sway angle of the user relative to the vertical gravitational axis and a sway direction of the user relative to the forward travel direction, the inertial measurement indicative of a movement of the user from a first pose to a second pose away from the first pose;

determining a movement vector defining the movement of the user from the first pose to the second pose based on the inertial measurement, the movement vector relative to the first pose;

determining whether the movement vector satisfies a threshold movement vector; and

when the movement vector satisfies a threshold movement vector, instructing at least one actuator to apply a force on the user, the force opposite to and proportional to the movement vector.

12. The wearable of claim 11 , wherein determining whether the movement vector satisfies a threshold movement vector comprises determining whether the movement vector extends beyond a movement envelope defined by a collection of envelope movement vectors relative to the vertical gravitational axis and the forward travel direction of the user at the first pose.

13. The wearable of claim 11 , wherein the movement vector comprises an angular displacement of the user from the first pose to the second pose.

14. The wearable of claim 11 , wherein the movement vector comprises a horizontal translation relative to the vertical gravitational axis of the user from the first pose to the second pose.

15. The wearable of claim 11 , wherein the user has a center of gravity and the vertical gravitational axis intersects the center of gravity of the user along a direction of gravity at the first pose.

16. The wearable of claim 11 , wherein the at least one actuator comprises at least one of a tri-axial accelerometer, a tri-axial magnetometer, or a tri-axial gyroscope.

17. The wearable of claim 11 , wherein the inertial measurement sensor is disposed on the band.

18. The wearable of claim 11 , wherein the at least one actuator comprises at least one of an electro-mechanical polymer, a piezo-electric actuator, a solenoid actuator, a pneumatic actuator, a hydraulic actuator, or a linear actuator.

19. The wearable of claim 11 , wherein the operations further comprise, when the movement vector satisfies a threshold movement vector:

receiving a video feed of an environment about the user;

augmenting the video feed by adding a stationary virtual object to the video feed, the stationary virtual object indicating the vertical gravitational axis; and

causing a display of the augmenting video feed on an electronic display in communication with the controller.

20. The wearable of claim 11 , wherein the operations further comprise, when the movement vector satisfies a threshold movement vector, triggering an ancillary feedback response comprising an audible response, a visual response, or a vibratory response.

21. A method comprising:

receiving, at data processing hardware, an inertial measurement from an inertial measurement sensor disposed on a user, the inertial measurement sensor comprising a tri-axial accelerometer and a tri-axial gyroscope, the user defining a vertical gravitational axis and a forward travel direction, the user having a pose defined by a sway angle of the user relative to the vertical gravitational axis and a sway direction of the user relative to the forward travel direction, the inertial measurement indicative of a movement of the user from a first pose to a second pose away from the first pose;

determining, by the data processing hardware, a movement vector defining the movement of the user from the first pose to the second pose based on the inertial measurement, the movement vector relative to the first pose;

determining, by the data processing hardware, whether the movement vector satisfies a threshold movement vector; and

when the movement vector satisfies a threshold movement vector;

receiving a video feed of an environment about the user;

augmenting the video feed by adding a stationary virtual object to the video feed, the stationary virtual object indicating the vertical gravitational axis; and

instructing, by the data processing hardware, display of the augmenting video feed on an electronic display.

22. The method of claim 21 , wherein determining whether the movement vector satisfies a threshold movement vector comprises determining whether the movement vector extends beyond a movement envelope defined by a collection of envelope movement vectors relative to the vertical gravitational axis and the forward travel direction of the user at the first pose.

23. The method of claim 21 , wherein the movement vector comprises an angular displacement of the user from the first pose to the second pose.

24. The method of claim 21 , wherein the movement vector comprises a horizontal translation relative to the vertical gravitational axis of the user from the first pose to the second pose.

25. The method of claim 21 , wherein the user has a center of gravity and the vertical gravitational axis intersects the center of gravity of the user along a direction of gravity.

26. The method of claim 21 , wherein the at least one inertial measurement sensor comprises at least one of a tri-axial accelerometer, a tri-axial magnetometer, or a tri-axial gyroscope.

27. The method of claim 21 , wherein the inertial measurement sensor is disposed on a band wearable by the user.

28. The method of claim 21 , wherein electronic display comprises a head mounted display.

29. The method of claim 21 , further comprising when the movement vector satisfies a threshold movement vector, triggering an ancillary feedback response comprising an audible response, a visual response, or a vibratory response.