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Applied Optics

Applied Optics


  • Vol. 38, Iss. 10 — Apr. 1, 1999
  • pp: 1942–1952

Two-dimensional restoration of motion-degraded intensified CCD imagery

Kenneth J. Barnard, Carl E. White, and Anthony E. Absi  »View Author Affiliations

Applied Optics, Vol. 38, Issue 10, pp. 1942-1952 (1999)

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A Wiener filter-based deconvolution algorithm is developed to restore vibration-degraded video imagery from an intensified CCD camera. The method is based on the use of azimuth and elevation angular optical line-of-sight data recorded from external sensors to estimate a two-dimensional vibration-blur impulse response on a per frame basis. Flight conditions are reproduced in the laboratory by use of prerecorded in-flight vibration data. The performance of the algorithm varies from frame to frame, following the time-varying characteristics of the vibration-blur impulse response. However, real-time display of the restored video minimizes these effects because of eye integration, and near-full restoration of the original uncorrupted imagery is observed for both high-light- and low-light-level conditions with minimal amplification of noise.

© 1999 Optical Society of America

OCIS Codes
(040.1520) Detectors : CCD, charge-coupled device
(040.3780) Detectors : Low light level
(100.1830) Image processing : Deconvolution
(100.2000) Image processing : Digital image processing
(100.3020) Image processing : Image reconstruction-restoration
(110.4100) Imaging systems : Modulation transfer function

Original Manuscript: August 18, 1998
Revised Manuscript: November 23, 1998
Published: April 1, 1999

Kenneth J. Barnard, Carl E. White, and Anthony E. Absi, "Two-dimensional restoration of motion-degraded intensified CCD imagery," Appl. Opt. 38, 1942-1952 (1999)

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