Image restoration techniques for partially coherent 2-D ladar imaging systems

Adam MacDonald; Stephen C. Cain; Ernest E. Armstrong

doi:10.1117/12.560278

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22 October 2004 Image restoration techniques for partially coherent 2-D ladar imaging systems

Adam MacDonald, Stephen C. Cain, Ernest E. Armstrong

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Proceedings Volume 5562, Image Reconstruction from Incomplete Data III; (2004) https://doi.org/10.1117/12.560278
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

A new image reconstruction algorithm is used to remove the effect of atmospheric turbulence on motion-compensated frame averaged data collected by a laser illuminated 2-D imaging system. The algorithm simultaneously computes a high resolution image and Fried's seeing parameter via a MAP estimation technique. This blind deconvolution algorithm differs from other techniques in that it parameterizes the unknown component of the impulse response as an average short-exposure point spread function. The utility of the approach lies in its application to laser illuminated imaging where laser speckle and turbulence effects dominate other sources of error and the field of view of the sensor greatly exceeds the isoplanatic angle.

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Adam MacDonald, Stephen C. Cain, and Ernest E. Armstrong "Image restoration techniques for partially coherent 2-D ladar imaging systems", Proc. SPIE 5562, Image Reconstruction from Incomplete Data III, (22 October 2004); https://doi.org/10.1117/12.560278

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