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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 13 — May. 1, 2014
  • pp: C32–C44

Enhancement of imagery of objects with highly dynamic brightness and large rotational motion

Andrey V. Kanaev, Christopher W. Miller, Collin J. Seanor, and Jeremy Murray-Krezan  »View Author Affiliations


Applied Optics, Vol. 53, Issue 13, pp. C32-C44 (2014)
http://dx.doi.org/10.1364/AO.53.000C32


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Abstract

We report on application of multi-frame super-resolution (SR) to sampling limited imagery that models space objects (SOs). The difficulties of multi-frame image processing of SOs include abrupt illumination changes and complex in scene SO motion. These conditions adversely affect the accuracy of motion estimation necessary for resolution enhancement. We analyze the motion estimation errors from the standpoint of an optical flow (OF) interpolation error metric and show dependence of the object tracking accuracy on brightness changes and on the pixel displacement values between subsequent images. Despite inaccuracies of motion estimation, we demonstrate spatial acuity enhancement of the pixel limited resolution of model SO motion imagery by applying a SR algorithm that accounts for OF errors. In addition to visual inspection, image resolution improvement attained in the experiments is assessed quantitatively; a 1.8× resolution enhancement is demonstrated.

© 2014 Optical Society of America

OCIS Codes
(100.0100) Image processing : Image processing
(100.2000) Image processing : Digital image processing
(100.2980) Image processing : Image enhancement
(100.3020) Image processing : Image reconstruction-restoration
(100.6640) Image processing : Superresolution
(150.4620) Machine vision : Optical flow

History
Original Manuscript: December 5, 2013
Revised Manuscript: March 14, 2014
Manuscript Accepted: March 19, 2014
Published: April 17, 2014

Citation
Andrey V. Kanaev, Christopher W. Miller, Collin J. Seanor, and Jeremy Murray-Krezan, "Enhancement of imagery of objects with highly dynamic brightness and large rotational motion," Appl. Opt. 53, C32-C44 (2014)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-53-13-C32

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