Stereoscopic format converter

• US 8,463,022 B2
• Filed: 09/23/2010
• Issued: 06/11/2013
• Est. Priority Date: 07/02/2002
• Status: Expired due to Term

• Current Assignee: RealD Incorporated
• Original Assignee: RealD Incorporated
• Inventors: Feldman, Mark H., Lipton, Lenny G.
• Primary Examiner(s): DRENNAN, BARRY T
• Application Number:
  US12/888,843
• Publication Number:
  US 20110013828A1
• Time in Patent Office: 992 Days
• Field of Search: 382/154
• US Class Current: 382/154
• CPC Class Codes: G06T 19/20 Editing of 3D images, e.g. changing shapes or colours, aligning objects or positioning parts
• CPC Class Codes: G06T 3/00 Geometric image transformations in the plane of the image
• CPC Class Codes: G06T 5/00 Image enhancement or restoration
• CPC Class Codes: G09G 5/005 Adapting incoming signals to the display format of the display terminal
• CPC Class Codes: H04N 13/139 Format conversion, e.g. of frame-rate or size
• CPC Class Codes: H04N 13/161 Encoding, multiplexing or demultiplexing different image signal components for multi-view video sequence encoding H04N19/597
• CPC Class Codes: H04N 13/261 with monoscopic-to-stereoscopic image conversion
• CPC Class Codes: H04N 2213/007 Aspects relating to detection of stereoscopic image format, e.g. for adaptation to the display format
• CPC Class Codes: H04N 5/202 Gamma control circuits for controlling camera response irrespective of the scene brightness H04N23/82

Abstract

A device and method for converting one stereoscopic format into another. A software-enabled matrix is used to set forth predefined relationships between one type of format as an input image and another type of format as an output image. The matrix can then be used as a look-up table that defines a correspondence between input pixels and output pixels for the desired format conversion.

Claims

1. A method of format conversion comprising:

receiving input image data having an input image format;

providing output image data for displaying an output image on a display, the output image data having a stereoscopic output format;

determining whether the input image format can be converted to the stereoscopic output format; and

converting the input image format to the stereoscopic output format only if it is determined that the input image format can be converted to the stereoscopic output format;

wherein the converting is performed according to a predefined relationship between the input image format and the stereoscopic output format, and wherein the input image format and the stereoscopic output format are different.

2. The method of claim 1, wherein the processing comprises accessing a support matrix table that sets forth the predefined relationship between the input format and the stereoscopic output format.

3. The method of claim 2, wherein the support matrix table comprises software instructions executable by a processor.

4. The method of claim 1, wherein the processing comprises converting each pixel component of the input image format to at least one pixel component of the stereoscopic output format.

5. The method of claim 1, wherein the processing comprises using a map to convert each pixel component of the input image format to one pixel component of the stereoscopic output format.

6. The method of claim 1, further comprising creating the output image based on the output image data.

7. The method of claim 6, further comprising displaying the output image on the display.

8. The method of claim 6, wherein the processing further comprises an action selected from the group consisting of:

converting the color space of the input image format;

scaling the input image format;

creating additional views;

swapping views;

preparing a presentation of the output image;

centering the presentation; and

formatting the presentation.

9. The method of claim 8, wherein all of the converting of the color space, the scaling of the input image format, the creating of additional views, the swapping of views, the preparing of a presentation, the centering of the presentation, and the formatting of the presentation are performed, and wherein all of those action are performed in sequential order.

10. The method of claim 9, further comprising inverting the input image format after the scaling action and before the creating of additional views.

11. The method of claim 9, further comprising aligning the views after the creating of additional views and before the swapping action.

12. The method of claim 8, further comprising:

arranging a predefined view wherein a single frame contains a plurality of views; and

interzigging the views.

13. The method of claim 1, wherein the input image format is associated with a planar image, the method further comprising creating a stereo image pair from the planar image.

14. The method of claim 13, wherein the creating of the stereo image pair comprises:

scaling the planar image by a fixed percentage to create a scaled image;

copying the scaled image to create a complimentary image;

shifting the complimentary image by a smaller percentage of the fixed percentage;

extracting a centered image from the scaled image; and

extracting a centered image from the shifted complimentary image.

15. The method of claim 14, wherein the smaller percentage is 50%.

16. The method of claim 13, wherein the creating of the stereo image pair comprises:

scaling the planar image by a fixed percentage to create a scaled image;

copying the scaled image to create a complimentary image;

skewing the complimentary image;

extracting a centered image from the scaled image; and

extracting a centered image from the skewed complimentary image.

17. The method of claim 16, wherein the complimentary image is skewed by 50%.

18. The method of claim 1, wherein the input image data has a plurality of input image formats, and the determining comprises determining whether conversions of the input image formats to the stereoscopic output format are supported.

19. The method of claim 18, wherein the plurality of input image formats comprise stereoscopic input image formats.

20. The method of claim 1, wherein the determining comprises determining whether the conversion of the input image format to one of a plurality of the stereoscopic output formats is supported.

21. A method of format conversion comprising:

receiving, at a processor, input image data having an input image format;

providing, from the processor, output image data for displaying an output image on a display, the output image data having a stereoscopic output format;

determining whether the input image format can be converted to the stereoscopic output format; and

converting, with the processor, the input image format to the stereoscopic output format only if it is determined that the input image format can be converted to the stereoscopic output format;

wherein the converting is performed according to a predefined relationship between the input image format and the stereoscopic output format, and wherein the input image format and the stereoscopic output format are different.

22. A method of format conversion comprising:

receiving input image data having an input image format;

providing, from a processor, output image data for displaying an output image on a display, the output image data having a stereoscopic output format;

determining whether the input image format can be converted to the stereoscopic output format; and

converting, with the processor, the input image format to the stereoscopic output format only if it is determined that the input image format can be converted to the stereoscopic output format;

wherein the converting is performed according to a predefined relationship between the input image format and the stereoscopic output format and is executed in a processing pipeline, the pipeline comprising a plurality of processing stages; and

wherein the input image format and the stereoscopic output format are different.

23. The method of format conversion of claim 22, wherein the converting in the processing pipeline is executed in sequence.

24. A method of format conversion comprising:

receiving input image data having an input image format;

providing output image data for displaying an output image on a display, the output image data having a stereoscopic output format;

determining whether the input image format can be converted to the stereoscopic output format; and

converting the input image format to the stereoscopic output format if it is determined that the input image format can be converted to the stereoscopic output format;

wherein the converting is performed according to a predefined relationship between the input image format and the stereoscopic output format, and wherein the input image format and the stereoscopic output format are different.