METHOD FOR PROVIDING CONTENT AND APPARATUS THEREFOR

• US 20180329482A1
• Filed: 04/30/2018
• Published: 11/15/2018
• Est. Priority Date: 04/28/2017
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Woo, Ji-Hwan, Choi, Byeong-Doo
• Granted Patent: US 10,545,570 B2
• Time in Patent Office: Days
• CPC Class Codes: G02B 13/06 Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
• CPC Class Codes: G02B 2027/014 comprising information/image processing systems
• CPC Class Codes: G02B 27/0093 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
• CPC Class Codes: G02B 27/017 Head mounted
• CPC Class Codes: G06F 3/011 Arrangements for interaction with the human body, e.g. for user immersion in virtual reality blind teaching G09B21/00
• CPC Class Codes: G06F 3/012 Head tracking input arrangements
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883
• CPC Class Codes: G06F 3/0346 with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors
• CPC Class Codes: G06T 15/005 General purpose rendering architectures

Abstract

A method for processing virtual reality (VR) content by a content providing device includes identifying cartesian coordinates of a first position on the VR content, estimating a movement of a user of the content providing device, identifying cartesian coordinates of a second position by applying a matrix representing the estimated movement of the user to the cartesian coordinates of the first position, converting the cartesian coordinates of the second position into spherical coordinates of the second position, and providing an area corresponding to the spherical coordinates of the second position to the user.

Claims

1. A method for processing virtual reality (VR) content by a content providing device, the method comprising:

identifying cartesian coordinates of a first position on the VR content;

estimating a movement of a user of the content providing device;

identifying cartesian coordinates of a second position by applying a matrix representing the estimated movement of the user to the cartesian coordinates of the first position;

converting the cartesian coordinates of the second position into spherical coordinates of the second position; and

providing an area corresponding to the spherical coordinates of the second position to the user.

2. The method of claim 1, further comprising converting spherical coordinates of the first position into the cartesian coordinates of the first position.

3. The method of claim 1, wherein the first position and the second position are viewpoints of the content providing device.

4. The method of claim 1, wherein estimating the user'"'"'s movement further includes estimating a yaw angle component, a pitch angle component, and a roll angle component of the movement of the user.

5. The method of claim 4, wherein the matrix further includes at least one of a yaw angle matrix, a pitch angle matrix, and a roll angle matrix, wherein when the user is positioned on an x-z plane, the yaw angle matrix is defined by:

6. The method of claim 4, wherein when the user is positioned on an x-z plane, the matrix is defined by:

7. The method of claim 4, wherein the matrix further includes a yaw angle matrix, a pitch angle matrix, and a roll angle matrix, and wherein identifying the cartesian coordinates of the second position by applying the matrix representing the estimated movement of the user to the cartesian coordinates of the first position further includes multiplying the cartesian coordinates of the first position by the yaw angle matrix, the pitch angle matrix, and the roll angle matrix in the same order as estimating the yaw angle component, the pitch angle component, and the roll angle component.

8. The method of claim 1, wherein estimating the user'"'"'s movement further includes estimating a relative movement of the user for the first position.

9. The method of claim 1, wherein the content providing device further includes a display providing the VR content to the user, and wherein the area is provided through the display to the user.

10. The method of claim 1, further comprising:

transmitting information about the spherical coordinates of the second position to a server; and

receiving, from the server, information about an area corresponding to the spherical coordinates of the second position in the VR content.

11. A content providing device for processing VR content, comprising:

a location sensor configured to estimate a movement of a user of the content providing device; and

a processor configured to control the content providing device to identify cartesian coordinates of a first position on the VR content, identify cartesian coordinates of a second position by applying a matrix representing the estimated movement of the user to the cartesian coordinates of the first position, convert the cartesian coordinates of the second position into spherical coordinates of the second position, and provide an area corresponding to the spherical coordinates of the second position to the user.

12. The content providing device of claim 11, wherein the processor is further configured to control the content providing device to convert spherical coordinates of the first position into the Cartesian coordinates of the first position.

13. The content providing device of claim 11, wherein the first position and the second position are viewpoints of the content providing device.

14. The content providing device of claim 11, wherein the location sensor or the processor is further configured to estimate the user'"'"'s movement as a yaw angle component, a pitch angle component, and a roll angle component.

15. The content providing device of claim 14, wherein the matrix further includes at least one of a yaw angle matrix, a pitch angle matrix, and a roll angle matrix, wherein when the user is positioned on an x-z plane, the yaw angle matrix is defined by:

16. The content providing device of claim 14, wherein when the user is positioned on an x-z plane, the matrix is defined by:

17. The content providing device of claim 14, wherein the matrix further includes a yaw angle matrix, a pitch angle matrix, and a roll angle matrix, and wherein the processor controls the content providing device to multiply the cartesian coordinates of the first position by the yaw angle matrix, the pitch angle matrix, and the roll angle matrix in the same order as estimating the yaw angle component, the pitch angle component, and the roll angle component to identify the cartesian coordinates of the second position.

18. The content providing device of claim 11, wherein the location sensor is further configured to estimate a relative movement of the user for the first position.

19. The content providing device of claim 11, further comprising a display configured to provide the area to the user.

20. The content providing device of claim 11, further comprising a transceiver configured to transmit information about the spherical coordinates of the second position to a server and receive, from the server, information about an area corresponding to the spherical coordinates of the second position in the VR content.