MAPPING SUB-PORTIONS OF THREE-DIMENSIONAL (3D) VIDEO DATA TO BE RENDERED ON A DISPLAY UNIT WITHIN A COMFORTABLE RANGE OF PERCEPTION OF A USER THEREOF

• US 20150009306A1
• Filed: 07/08/2013
• Published: 01/08/2015
• Est. Priority Date: 07/08/2013
• Status: Active Grant

• Current Assignee: NVIDIA Corporation
• Original Assignee: NVIDIA Corporation
• Inventors: More, Nilesh
• Granted Patent: US 9,232,210 B2
• Time in Patent Office: Days
• US Class Current: 348/54
• CPC Class Codes: H04N 13/128 Adjusting depth or disparity
• CPC Class Codes: H04N 13/144 for flicker reduction

Abstract

A method includes receiving, through a processor of a data processing device communicatively coupled to a memory, data related to a dimensional parameter of a display unit and/or a distance between a user and the display unit, and determining, through the processor, a comfortable range of perception of a sub-portion of three-dimensional (3D) video data on the display unit based on the dimensional parameter of the display unit and/or the distance between the user and the display unit. The method also includes adjusting, through the processor, a disparity between one or more sub-portion(s) of the 3D video data corresponding to perception of the sub-portion by a left eye of the user and one or more sub-portion(s) of the 3D video data corresponding to perception of the sub-portion by a right eye of the user such that the sub-portion is mapped within the determined comfortable range of perception.

Claims

1. A method to reduce eye strain of a user during viewing of three-dimensional (3D) video data on a display unit associated with a data processing device, comprising:

receiving, through a processor of the data processing device communicatively coupled to a memory, data related to at least one of a dimensional parameter of the display unit and a distance between the user and the display unit;

determining, through the processor, a comfortable range of perception of a sub-portion of the 3D video data on the display unit based on the at least one of the dimensional parameter of the display unit and the distance between the user and the display unit, the comfortable range of perception being related to a perception range within which the user is expected to experience reduced eye strain; and

adjusting, through the processor, a disparity between at least one sub-portion of the 3D video data corresponding to perception of the sub-portion by a left eye of the user and at least one sub-portion of the 3D video data corresponding to perception of the sub-portion by a right eye of the user such that the sub-portion is mapped within the determined comfortable range of perception, the disparity adjustment being performed across at least one spatial dimension.

2. The method of claim 1, wherein adjusting the disparity further comprises at least one of:

at least one of;

linearly and non-linearly remapping the sub-portion of the 3D video data within the comfortable range of perception;

forcing data points related to the sub-portion to lie one of;

behind and on a screen surface of the display unit corresponding to the viewing of the user; and

adjusting at least one of;

the at least one sub-portion of the 3D video data corresponding to the perception of the sub-portion by the left eye and the at least one sub-portion of the 3D video data corresponding to the perception of the sub-portion by the right eye.

3. The method of claim 1, further comprising adjusting, through the processor, at least one video parameter of the 3D video data based on the at least one of the dimensional parameter of the display unit and the distance between the user and the display unit to further reduce the eye strain of the user.

4. The method of claim 1, further comprising at least one of:

obtaining the at least one of the dimensional parameter of the display unit and the distance between the user and the display unit through a user interface of at least one of;

an application executing on the data processing device and an operating system executing on the data processing device;

sensing the data related to the distance between the user and the display unit through a sensor associated with the data processing device to enable the processor determine the distance between the user and the display unit; and

receiving the data related to the at least one of the dimensional parameter of the display unit and the distance between the user and the display unit from a device external to the data processing device.

5. The method of claim 1, further comprising triggering at least one of the determination of the comfortable range of perception and the adjustment of the disparity through a driver component associated with at least one of:

the processor, the display unit and a sensor configured to sense the data related to the distance between the user and the display unit.

6. The method of claim 5, comprising providing the driver component as at least one of:

packaged with an operating system executing on the data processing device and packaged with an application executing on the data processing device.

7. The method of claim 4, further comprising providing a capability to the user to bypass the determination of the comfortable range of perception and the adjustment of the disparity through the user interface of the at least one of the application and the operating system.

8. A data processing device comprising:

a memory comprising 3D video data; and

a processor communicatively coupled to the memory, the processor being configured to receive data related to at least one of a dimensional parameter of a display unit and a distance between a user and the display unit, based on which the processor is further configured to execute instructions to;

determine a comfortable range of perception of a sub-portion of the 3D video data on the display unit based on the at least one of the dimensional parameter of the display unit and the distance between the user and the display unit, the comfortable range of perception being related to a perception range within which the user is expected to experience reduced eye strain during viewing of the 3D video data on the display unit, and

adjust a disparity between at least one sub-portion of the 3D video data corresponding to perception of the sub-portion by a left eye of the user and at least one sub-portion of the 3D video data corresponding to perception of the sub-portion by a right eye of the user such that the sub-portion is mapped within the determined comfortable range of perception, the disparity adjustment being performed across at least one spatial dimension.

9. The data processing device of claim 8, wherein the processor is configured to execute instructions to adjust the disparity through at least one of:

at least one of;

linearly and non-linearly remapping the sub-portion of the 3D video data within the comfortable range of perception,

forcing data points related to the sub-portion to lie one of;

behind and on a screen surface of the display unit corresponding to the viewing of the user, and

adjusting at least one of;

the at least one sub-portion of the 3D video data corresponding to the perception of the sub-portion by the left eye and the at least one sub-portion of the 3D video data corresponding to the perception of the sub-portion by the right eye.

10. The data processing device of claim 8, wherein the processor is further configured to execute instructions to adjust at least one video parameter of the 3D video data based on the at least one of the dimensional parameter of the display unit and the distance between the user and the display unit to further reduce the eye strain of the user.

11. The data processing device of claim 8, further comprising a driver component to trigger at least one of the determination of the comfortable range of perception and the adjustment of the disparity.

12. The data processing device of claim 11, wherein the driver component is provided as at least one of:

packaged with an operating system executing on the data processing device and packaged with an application executing on the data processing device.

13. A system comprising:

a data source of 3D video data; and

a client device communicatively coupled to the data source, the client device being configured to receive the 3D video data and data related to at least one of a dimensional parameter of a display unit and a distance between a user and the display unit, based on which the client device is further configured to;

determine a comfortable range of perception of a sub-portion of the 3D video data on the display unit based on the at least one of the dimensional parameter of the display unit and the distance between the user and the display unit, the comfortable range of perception being related to a perception range within which the user is expected to experience reduced eye strain during viewing of the 3D video data on the display unit, and

adjust a disparity between at least one sub-portion of the 3D video data corresponding to perception of the sub-portion by a left eye of the user and at least one sub-portion of the 3D video data corresponding to perception of the sub-portion by a right eye of the user such that the sub-portion is mapped within the determined comfortable range of perception, the disparity adjustment being performed across at least one spatial dimension.

14. The system of claim 13, wherein the client device is configured to adjust the disparity through at least one of:

at least one of;

linearly and non-linearly remapping the sub-portion of the 3D video data within the comfortable range of perception,

forcing data points related to the sub-portion to lie one of;

behind and on a screen surface of the display unit corresponding to the viewing of the user, and

adjusting at least one of;

the at least one sub-portion of the 3D video data corresponding to the perception of the sub-portion by the left eye and the at least one sub-portion of the 3D video data corresponding to the perception of the sub-portion by the right eye.

15. The system of claim 13, wherein the client device is further configured to adjust at least one video parameter of the 3D video data based on the at least one of the dimensional parameter of the display unit and the distance between the user and the display unit to further reduce the eye strain of the user.

16. The system of claim 13, further comprising a driver component associated with at least one of:

a processor of the client device, the display unit and a sensor configured to sense the data related to the distance between the user and the display unit to trigger at least one of the determination of the comfortable range of perception and the adjustment of the disparity through the client device.

17. The system of claim 16, wherein the driver component is provided as at least one of:

packaged with an operating system executing on the client device and packaged with an application executing on the client device.

18. The system of claim 13, wherein one of:

the client device is also the data source, and

the data source is communicatively coupled to the client device through a computer network.

19. The system of claim 13, wherein at least one of:

the client device comprises a processor communicatively coupled to a memory to obtain the at least one of the dimensional parameter of the display unit and the distance between the user and the display unit through a user interface of at least one of;

an application executing thereon and an operating system executing thereon,

the system further comprises a sensor associated with the client device to sense the data related to the distance between the user and the display unit to enable the processor determine the distance between the user and the display unit, and

the processor of the client device is configured to receive the data related to the at least one of the dimensional parameter of the display unit and the distance between the user and the display unit from a device external to the client device.

20. The system of claim 19, wherein the user is provided a capability to bypass the determination of the comfortable range of perception and the adjustment of the disparity by the client device through the user interface of the at least one of the application executing on the client device and the operating system executing on the client device.