Resolution loss mitigation for 3D displays

Patent metadata

Field	Value
Publication number	US-9418625-B2
Application number	US-201113977173-A
Country	US
Kind code	B2
Filing date	Dec 16, 2011
Priority date	Dec 16, 2011
Publication date	Aug 16, 2016
Grant date	Aug 16, 2016

Abstract

Systems, devices and methods are described including determining a display type and a display mode, preparing stereoscopic image content in response to the display mode, where preparing the stereoscopic image content includes storing a full resolution left image and a full resolution right image in memory, and determining a display refresh rate in response to at least a content frame rate of the stereoscopic image content. The stereoscopic image content may then be processed for display according to the display type, the display refresh rate, and a power policy.

First claim

What is claimed:

1. A computer-implemented method, comprising:
determining a display type and a display mode;
preparing stereoscopic image content in response to the display mode, wherein preparing the stereoscopic image content includes storing a full resolution left view image and a full resolution right view image in memory;
determining a display refresh rate in response to at least a content frame rate of the stereoscopic image content; and
processing the stereoscopic image content for display in response to the display type and the display refresh rate, wherein when the display type comprises a polarization based S3D display type, processing the stereoscopic image content for display comprises interleaving rows of the full resolution left view image with rows of the full resolution right view image to generate at least two image frames N and N+1 of interleaved rows; and wherein when the display type comprises an auto stereoscopic based S3D display type, processing the stereoscopic image content for display comprises interleaving columns of the full resolution left view image with columns of the full resolution right view image to generate at least two image frames N and N+1 of interleaved columns.

2. The method of claim 1 , wherein when the stereoscopic image content has a content frame rate of N hertz, the display refresh rate comprises 2*N hertz.

3. The method of claim 1 , further comprising:
providing the processed stereoscopic image content to a stereoscopic display; and
providing a synchronization signal to control display of the processed stereoscopic image content by synchronizing a stereoscopic control mechanism of the stereoscopic display with the processed stereoscopic image content,
wherein the synchronization signal controls the stereoscopic display to modulate each row or column of the stereoscopic display in opposite polarization directions in successive frames so that a given row or column has a first polarization direction for frame N and the same given row or column has a second different polarization direction for frame N+1.

4. The method of claim 3 , wherein when providing the processed stereoscopic image content comprises providing the processed stereoscopic image content as progressive frames having a frame rate of N hertz, the display refresh rate comprises 2*N hertz, and the synchronization signal comprises a rate of 2*N hertz.

5. The method of claim 3 , wherein when providing the processed stereoscopic image content comprises providing the processed stereoscopic image content as interlaced frames having a frame rate of N hertz, the display refresh rate comprises N hertz, and the synchronization signal comprises a rate of N hertz.

6. The method of claim 1 , wherein the display mode comprises an indication of three-dimensional (3D) display capability.

7. The method of claim 1 , wherein the display type comprises one of a polarization based stereoscopic three-dimensional (S3D) display type, or a parallax barrier based S3D display type.

8. The method of claim 1 , wherein determining the display refresh rate is further in response to at least whether the stereoscopic image content is progressive scanned or interlaced content, and whether a power saving mode has been activated according to a power policy.

9. At least one non-transitory machine readable medium comprising a plurality of instructions that in response to being executed on a computing device, cause the computing device to:
determining a display type and a display mode;
preparing stereoscopic image content in response to the display mode, wherein preparing the stereoscopic image content includes storing a full resolution left view image and a full resolution right view image in memory;
determining a display refresh rate in response to at least a content frame rate of the stereoscopic image content; and
processing the stereoscopic image content for display in response to the display type and the display refresh rate, wherein when the display type comprises a polarization based S3D display type, processing the stereoscopic image content for display comprises interleaving rows of the full resolution left view image with rows of the full resolution right view image to generate at least two image frames N and N+1 of interleaved rows; and wherein when the display type comprises an auto stereoscopic based S3D display type, processing the stereoscopic image content for display comprises interleaving columns of the full resolution left view image with columns of the full resolution right view image to generate at least two image frames N and N+1 of interleaved columns.

10. The non-transitory machine readable medium of claim 9 , wherein when the stereoscopic image content has a content frame rate of N hertz, the display refresh rate comprises 2*N hertz.

11. The non-transitory machine readable medium of claim 9 , the computer program product having stored therein further instructions that, if executed, result in:
providing the processed stereoscopic image content to a stereoscopic display; and
providing a synchronization signal to control display of the processed stereoscopic image content by synchronizing a stereoscopic control mechanism of the stereoscopic display with the processed stereoscopic image content,
wherein the synchronization signal controls the stereoscopic display to modulate each row or column of the stereoscopic display in opposite polarization directions in successive frames so that a given row or column has a first polarization direction for frame N and the same given row or column has a second different polarization direction for frame N+1.

12. The non-transitory machine readable medium of claim 9 , wherein determining the display refresh rate is further in response to at least whether the stereoscopic image content is progressive scanned or interlaced content, and whether a power saving mode has been activated according to a power policy.

13. A device, comprising:
means for determining a display type and a display mode;
means for preparing stereoscopic image content in response to the display mode, wherein preparing the stereoscopic image content includes storing a full resolution left view image and a full resolution right view image in memory;
means for determining a display refresh rate in response to at least a content frame rate of the stereoscopic image content; and
means for processing the stereoscopic image content for display in response to the display type and the display refresh rate, wherein when the display type comprises a polarization based S3D display type, the process of the stereoscopic image content for display comprises interleaving rows of the full resolution left view image with rows of the full resolution right view image to generate at least two image frames N and N+1 of interleaved rows; and wherein when the display type comprises an auto stereoscopic based S3D display type, the process of the stereoscopic image content for display comprises interleaving columns of the full resolution left view image with columns of the full resolution right view image to generate at least two image frames N and N+1 of interleaved columns.

14. The device of claim 13 , wherein when the stereoscopic image content has a content frame rate of N hertz, the display refresh rate comprises 2*N hertz.

15. The device of claim 13 , further comprising:
means for providing the processed stereoscopic image content to a stereoscopic display; and
means for providing a synchronization signal to control display of the processed stereoscopic image content by synchronizing a stereoscopic control mechanism of the stereoscop

Assignees

• Zhang Yanli
• Intel Corp

Inventors

• Zhang Yanli

Classifications

• H04N13/139 Primary

  Format conversion, e.g. of frame-rate or size · CPC title

• G09G5/14 Primary

  Display of multiple viewports · CPC title

• H04N13/398

  Synchronisation thereof; Control thereof · CPC title

• H04N13/302

  for viewing without the aid of special glasses, i.e. using autostereoscopic displays · CPC title

• H04N13/0497

  Electricity · mapped topic