Claims:WE CLAIM:

1. A method of detecting virtual reality sickness causing content in virtual reality motion simulators, the method comprising:
determining, by a virtual reality system, a visual perception measurement of a virtual reality content being displayed to a user on a head mounted virtual reality device of a virtual reality motion simulator;
determining, by the virtual reality system, a vestibular perception measurement of the virtual reality content being sensed by the user mounted on a platform of the virtual reality motion simulator and wearing the head mounted virtual reality device;
comparing, by the virtual reality system, the visual perception measurement and the vestibular perception measurement of the virtual reality content experienced by the user; and
identifying, by the virtual reality system, user experience of the user in the virtual reality motion simulator.

2. The method as claimed in claim 1, wherein determining the visual perception measurement of the virtual reality content comprises:
determining a visual orientation angle of the virtual reality content based on a relative angle of a virtual floor with respect to a virtual camera.

3. The method as claimed in claim 1, wherein determining the vestibular perception measurement of the virtual reality content comprises:
measuring first sensor data from a platform inertial measurement unit (IMU) sensor attached to the platform, the first sensor data comprising data associated with physical orientation of the platform;
measuring second sensor data from at least one head mounted IMU sensor attached to the head mounted virtual reality device, the second sensor data comprising data associated with physical orientation of head of the user;
combining the first sensor data and the second sensor data to derive orientation values; and
determining a vestibular perception angle based on the orientation values.

4. The method as claimed in claim 1, wherein comparing the visual perception measurement and the vestibular perception measurement comprises:
certifying the virtual reality content as the virtual reality sickness causing content based on a mismatch between the visual perception measurement and the vestibular perception measurement of the virtual reality content.

5. The method as claimed in claim 4 and further comprising:
providing at least one correction method to correct the mismatch between the visual perception measurement and the vestibular perception measurement of the virtual reality content.

6. The method as claimed in claim 1, wherein comparing the visual perception measurement and the vestibular perception measurement comprises:
certifying the virtual reality content as safe content based on a match between the visual perception measurement and the vestibular perception measurement of the virtual reality content.

7. The method as claimed in claim 1, wherein the visual perception measurement and the vestibular perception measurement of the virtual reality content is compared by a comparison logic module.

8. A virtual reality system for detecting virtual reality sickness causing content in virtual reality motion simulators, the virtual reality system comprising:
a virtual reality motion simulator comprising:
a head mounted virtual reality device configured to be accommodated on a head of a user and display a virtual reality content to the user, the head mounted virtual reality device further comprising at least one head mounted inertial measurement unit (IMU) sensor; and
a platform configured to accommodate the user and physically orient in accordance with the virtual reality content, the platform further comprising a platform IMU sensor;
a processor; and
a memory communicatively coupled to the processor, wherein the memory stores processor-executable instructions, which, on execution, cause the processor to:
determine a visual perception measurement of a virtual reality content being displayed to the user on the head mounted virtual reality device of the virtual reality motion simulator;
determine a vestibular perception measurement of the virtual reality content being sensed by the user mounted on the platform of the virtual reality motion simulator and wearing the head mounted virtual reality device;
compare the visual perception measurement and the vestibular perception measurement of the virtual reality content experienced by the user; and
identify user experience of the user in the virtual reality motion simulator.

9. The virtual reality system as claimed in claim 8, wherein the processor is further configured to determine the visual perception measurement of the virtual reality content by:
determining a visual orientation angle of the virtual reality content based on a relative angle of a virtual floor with respect to a virtual camera.

10. The virtual reality system as claimed in claim 8, wherein the processor is further configured to determine the vestibular perception measurement of the virtual reality content by:
measuring first sensor data from the platform IMU sensor attached to the platform, the first sensor data comprising data associated with physical orientation of the platform;
measuring second sensor data from the at least one head mounted IMU sensor attached to the head mounted virtual reality device, the second sensor data comprising data associated with physical orientation of head of the user;
combining the first sensor data and the second sensor data to derive orientation values; and
determining a vestibular perception angle based on the orientation values.

11. The virtual reality system as claimed in claim 8, wherein the processor is further configured to compare the visual perception measurement and the vestibular perception measurement by:
certifying the virtual reality content as the virtual reality sickness causing content based on a mismatch between the visual perception measurement and the vestibular perception measurement of the virtual reality content.

12. The virtual reality system as claimed in claim 11 and wherein the processor is further configured to:
provide at least one correction method to correct the mismatch between the visual perception measurement and the vestibular perception measurement of the virtual reality content.

13. The virtual reality system as claimed in claim 8, wherein the processor is further configured to compare the visual perception measurement and the vestibular perception measurement by:
certifying the virtual reality content as safe content based on a match between the visual perception measurement and the vestibular perception measurement of the virtual reality content.

14. The virtual reality system as claimed in claim 8 and further comprising:
a comparison logic module configured to compare the visual perception measurement and the vestibular perception measurement of the virtual reality content.

Dated this 2nd day of August, 2017

Swetha SN
Of K&S Partners
Agent for the Applicant
, Description:FIELD OF THE DISCLOSURE

The present subject matter generally relates to field of virtual reality. More particularly, the present disclosure discloses a method and system for detecting virtual reality sickness causing content in virtual reality motion simulators.