Algorithmic interaxial reduction

• US 8,736,672 B2
• Filed: 08/24/2006
• Issued: 05/27/2014
• Est. Priority Date: 08/24/2006
• Status: Active Grant

• Current Assignee: RealD Incorporated
• Original Assignee: RealD Incorporated
• Inventors: Lipton, Lenny, Akka, Robert
• Primary Examiner(s): Czekaj, Dave
• Assistant Examiner(s): Werner, David N
• Application Number:
  US11/509,960
• Publication Number:
  US 20080049100A1
• Time in Patent Office: 2,833 Days
• Field of Search: 348 42- 48, 382/154, 345/427
• US Class Current: 348/47
• CPC Class Codes: H04N 13/111 Transformation of image signals corresponding to virtual viewpoints, e.g. spatial image interpolation
• CPC Class Codes: H04N 13/144 for flicker reduction
• CPC Class Codes: H04N 13/239 using two 2D image sensors having a relative position equal to or related to the interocular distance H04N13/243 takes precedence
• CPC Class Codes: H04N 2213/002 Eyestrain reduction by processing stereoscopic signals or controlling stereoscopic devices

Abstract

A system and method for determining an intermediate stereoscopic representation, thus offering adjustable interaxial separation values, is presented. The design comprises obtaining a first image using a first image collecting device and substantially simultaneously obtaining a second image using a second image collecting device. The two recoding devices are physically separated by a distance, and the second image may be combined with the first image to form a stereoscopic image. The design further determines the intermediate stereoscopic representation based on aspects of the first image combined, typically algorithmically, with aspects of the second image.

Claims

1. A method for creating an intermediate stereoscopic perspective representation of a plurality of stereoscopic images, comprising:

obtaining a first image collected using a first image collecting device;

obtaining a second image collected using a second image collecting device, the second image collecting device spaced apart from the first image collecting device by an original interaxial separation distance, said second image configured to be combined with the first image to form a stereoscopic image;

determining whether a new stereo pair having a new interaxial separation distance less than a minimum physical interaxial separation distance between the first and second image collecting devices is desired;

computing the intermediate stereoscopic perspective representation based on data from the first and second images; and

generating the new stereo pair comprising

the intermediate stereoscopic perspective representation, and

one of the first image and second image;

wherein vertical axes of the first and second image collecting devices are offset by the original interaxial separation distance, and wherein vertical axes of the new stereo pair are offset by the new interaxial separation distance, the new interaxial separation distance being less than a minimum physical interaxial separation distance between the first and second image collecting devices.

2. The method of claim 1, wherein said determining comprises performing an algorithm to combine the first image with the second image.

3. The method of claim 2, wherein the algorithm comprises an interpolation algorithm.

4. The method of claim 1, wherein the first image collecting device and the second image collecting device have substantially parallel image recording axes.

5. The method of claim 2, wherein said algorithm comprises a nonlinear algorithm.

6. The method of claim 4, wherein the intermediate stereoscopic perspective representation represents a combination of images along an imaginary line joining a first device image recording axis and a second device image recording axis.

7. The method of claim 1, wherein the first image and second image are obtained substantially simultaneously.

8. An apparatus for creating an intermediate stereoscopic perspective representation of a plurality of stereoscopic images, comprising:

an image collecting device configured to obtain a first image and a second image, the second image comprising an image collected by a second image collecting device physically separated from a first image collecting device that collected the first image by an original interaxial separation distance such that vertical axes of the first and second image collecting devices are offset by the original interaxial separation distance, said second image configured to be combined with the first image to form a stereoscopic image; and

a processing device configured to determine whether a new stereo pair having a new interaxial separation distance less than a minimum physical interaxial separation distance between the first and second image collecting devices is desired, configured to compute the intermediate stereoscopic perspective representation based on data from the first and second images, and configured to generate the new stereo pair comprising

the intermediate stereoscopic perspective representation, and

one of the first image and second image, the new stereo pair having the new interaxial separation distance that is less than a minimum physical interaxial separation distance between the first and second image collecting devices.

9. The apparatus of claim 8, wherein the processing device is configured to perform an algorithm to combine the first image with the second image.

10. The apparatus of claim 9, wherein the algorithm comprises an interpolation algorithm.

11. The apparatus of claim 8, wherein the first image collecting device and the second image collecting device have substantially parallel image recording axes.

12. The apparatus of claim 9, wherein said algorithm comprises a nonlinear algorithm.

13. The apparatus of claim 11, wherein the intermediate stereoscopic perspective representation represents a combination of images along an imaginary line joining a first device image recording axis and a second device image recording axis.

14. The apparatus of claim 8, wherein the first image collecting device and the second image collecting device are in communication with the processing device and the output of the processing device is a plurality of intermediate images.

15. A method of processing stereoscopic images, comprising:

obtaining a plurality of first images and a plurality of second images originally collected by image collecting devices each separated from another image collecting device by an original interaxial separation distance such that vertical axes of the plurality of first images and the plurality of second images are offset by the original interaxial separation distance;

determining whether new stereo pairs having a new interaxial separation distance less than a minimum physical interaxial separation distance between the first and second image collecting devices are desired; and

computing an intermediate stereoscopic perspective representation based on data from the plurality of first images and the plurality of second images; and

generating a plurality of the new stereo pairs comprising;

the intermediate stereoscopic perspective representation, and

one image of the plurality of first and second images, the plurality of new stereo pairs having the new interaxial separation distances that are less than a minimum physical interaxial separation between the first and second image collecting devices.

16. The method of claim 15, wherein said computing comprises performing a pixel combining algorithm to combine selected pixels from a first image received from one image collecting device with selected pixels from a second image received from a second image collecting device.

17. The method of claim 16, wherein the pixel combining algorithm comprises an interpolation algorithm.

18. The method of claim 15, wherein all image collecting devices have substantially parallel image recording axes.

19. The method of claim 16, wherein said pixel combining algorithm comprises a nonlinear algorithm.

20. The method of claim 18, wherein the intermediate stereoscopic perspective representation represents a combination of images along an imaginary line joining at least a first device image recording axis and a second device image recording axis.

21. The method of claim 15, wherein images are received by the image collecting devices substantially simultaneously.