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Proceedings Paper

Examination of the optical transfer function from single-frame coherent speckle images
Author(s): Barbara Tehan Landesman; David F. Olson
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Paper Abstract

In classical imaging, the optical transfer function (OTF) conveys information about how well the optical system transmits individual spatial frequencies of the object. This OTF is based on the point spread function of the system; that is, the ability of the optics to form a point image given either coherent or incoherent illumination. In contrast, nonconventional imaging systems consist of an innovative combination of optics and software to form a final image. Such a system does not easily lend itself to the concept of a point spread function although individual spatial frequencies will be affected differently by the system as a whole. This paper investigates a phase differencing technique for deriving OTF information from a single frame of a coherent speckle image. A multiframe transfer function is obtained by averaging the OTFs of several single frames.

Paper Details

Date Published: 31 October 1997
PDF: 8 pages
Proc. SPIE 3170, Image Reconstruction and Restoration II, (31 October 1997); doi: 10.1117/12.292827
Show Author Affiliations
Barbara Tehan Landesman, Applied Technology Associates (United States)
David F. Olson, Applied Technology Associates (United States)


Published in SPIE Proceedings Vol. 3170:
Image Reconstruction and Restoration II
Timothy J. Schulz, Editor(s)

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