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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 21 — Oct. 13, 2008
  • pp: 16352–16363

Superimposed video disambiguation for increased field of view

Roummel F. Marcia, Changsoon Kim, Cihat Eldeniz, Jungsang Kim, David J. Brady, and Rebecca M. Willett  »View Author Affiliations


Optics Express, Vol. 16, Issue 21, pp. 16352-16363 (2008)
http://dx.doi.org/10.1364/OE.16.016352


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Abstract

Many infrared optical systems in wide-ranging applications such as surveillance and security frequently require large fields of view (FOVs). Often this necessitates a focal plane array (FPA) with a large number of pixels, which, in general, is very expensive. In a previous paper, we proposed a method for increasing the FOV without increasing the pixel resolution of the FPA by superimposing multiple sub-images within a static scene and disambiguating the observed data to reconstruct the original scene. This technique, in effect, allows each sub-image of the scene to share a single FPA, thereby increasing the FOV without compromising resolution. In this paper, we demonstrate the increase of FOVs in a realistic setting by physically generating a superimposed video from a single scene using an optical system employing a beamsplitter and a movable mirror. Without prior knowledge of the contents of the scene, we are able to disambiguate the two sub-images, successfully capturing both large-scale features and fine details in each sub-image. We improve upon our previous reconstruction approach by allowing each sub-image to have slowly changing components, carefully exploiting correlations between sequential video frames to achieve small mean errors and to reduce run times. We show the effectiveness of this improved approach by reconstructing the constituent images of a surveillance camera video.

© 2008 Optical Society of America

OCIS Codes
(100.2000) Image processing : Digital image processing
(100.7410) Image processing : Wavelets
(110.1758) Imaging systems : Computational imaging
(110.4155) Imaging systems : Multiframe image processing
(110.3010) Imaging systems : Image reconstruction techniques

ToC Category:
Image Processing

History
Original Manuscript: July 18, 2008
Revised Manuscript: September 11, 2008
Manuscript Accepted: September 22, 2008
Published: September 29, 2008

Citation
Roummel F. Marcia, Changsoon Kim, Cihat Eldeniz, Jungsang Kim, David J. Brady, and Rebecca M. Willett, "Superimposed video disambiguation for increased field of view," Opt. Express 16, 16352-16363 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-21-16352


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