Method for providing content and apparatus therefor

• US 10,545,570 B2
• Filed: 04/30/2018
• Issued: 01/28/2020
• 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
• Primary Examiner(s): Faulk, Devona E
• Assistant Examiner(s): Wu, Ming
• Application Number:
  US15/966,941
• Publication Number:
  US 20180329482A1
• Time in Patent Office: 638 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 an electronic device, the method comprising:

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

identifying rotation information including a yaw rotation component indicating a rotation around a z axis, a pitch rotation component indicating a rotation around a y axis, and a roll rotation component indicating around an x axis;

identifying second cartesian coordinates of a second position based on the first cartesian coordinates and the rotation information;

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

rendering an area of the VR content based on the second spherical coordinates of the second position,

wherein the second cartesian coordinates of the second position are identified by multiplying the first cartesian coordinates with a matrix defined by;

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

3. The method of claim 1, wherein the first position and the second position are viewpoints related to the VR content.

4. The method of claim 1, wherein the rotation information is identified by estimating a relative movement of a user of the electronic device to the first position.

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

6. The method of claim 1, further comprising:

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

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

7. An electronic device for processing VR content, comprising:

a display; and

a processor coupled to the display, and configured to;

identify first cartesian coordinates of a first position with first spherical coordinates on the VR content;

identify rotation information including a yaw rotation component indicating a rotation around a z axis, a pitch rotation component indicating a rotation around a y axis, and a roll rotation component indicating around an x axis;

identify second cartesian coordinates of a second position based on the first cartesian coordinates and the rotation information;

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

rendering an area of the VR content based on the second spherical coordinates of the second position;

wherein the second cartesian coordinates of the second position are identified by multiplying the first cartesian coordinates with a matrix defined by;

8. The electronic device of claim 7, wherein the processor is further configured to convert the first spherical coordinates of the first position into the first cartesian coordinates of the first position.

9. The electronic device of claim 7, wherein the first position and the second position are viewpoints related to the VR content.

10. The electronic device of claim 7, wherein the rotation information is identified by estimating a relative movement of a user of the electronic device to the first position.

11. The electronic device of claim 7, wherein the display is configured to provide the area to the user.

12. The electronic device of claim 7, further comprising a transceiver configured to transmit information about the second spherical coordinates of the second position to a server and receive, from the server, information about an area corresponding to the second spherical coordinates of the second position in the VR content.