Abstract

Speckle images of spatially incoherent objects viewed under severe seeing conditions are formed in the optical laboratory (organized for simulations of stellar speckle interferometry). The brightest pixel in each speckle image is shifted to the center of image space, and the translated image is added to all other speckle images that have been similarly processed. A recognizable diffraction-limited version of the true image of the object results, even when the imaging instrument is defocused such that, under perfect seeing conditions, the Airy disk is spread over an area comparable with that covered by a typical speckle image.

© 1980 Optical Society of America

Effects of finite spectral bandwidth and focusing error on the transfer function in stellar speckle interferometry

Junji Ohtsubo
J. Opt. Soc. Am. A 2(5) 667-673 (1985)

Self-calibrating shift-and-add technique for speckle imaging

Julian C. Christou, E. Keith Hege, Jonathan D. Freeman, and Erez Ribak
J. Opt. Soc. Am. A 3(2) 204-209 (1986)

Application of bispectral speckle imaging to near-diffraction-limited imaging in the presence of unknown aberrations

Doo Jin Cho, Edward A. Watson, and G. Michael Morris
Appl. Opt. 34(5) 854-864 (1995)

Electronic speckle pattern interferometry using digital image processing techniques

Suezou Nakadate, Toyohiko Yatagai, and Hiroyoshi Saito
Appl. Opt. 19(11) 1879-1883 (1980)

Speckle interferometry with severely aberrated telescopes

Douglas P. Karo and Arthur M. Schneiderman
J. Opt. Soc. Am. 67(9) 1277-1278 (1977)