Anisoplanatic imaging through turbulent media: image recovery by local information fusion from a set of short-exposure images.

Autor: Vorontsov MA; US Army Research Laboratory, Computational and Information Sciences Directorate, Adelphi, Maryland 20783, USA. mvorontsov@arl.army.mil, Carhart GW
Jazyk: angličtina
Zdroj: Journal of the Optical Society of America. A, Optics, image science, and vision [J Opt Soc Am A Opt Image Sci Vis] 2001 Jun; Vol. 18 (6), pp. 1312-24.
DOI: 10.1364/josaa.18.001312
Abstrakt: A wide-field-of-view white-light imaging experiment with artificially generated turbulence layers located between the extended object and the imaging system is described. Relocation of the turbulence sources along the imaging path allowed the creation of controllable anisoplanatic effects. We demonstrate that the recently proposed synthetic imaging technique [J. Opt. Soc. Am. A 16, 1623 (1999)] may result in substantial improvement in image quality for highly anisoplanatic conditions. It is shown that for multisource objects located at different distances the processing of turbulence-degraded short-exposure images may lead to a synthetic image that has an image quality superior to that of the undistorted image obtained in the absence of turbulence (turbulence-induced image quality enhancement).
Databáze: MEDLINE