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Proceedings Paper

Object brightness estimation from multiple coherent image plane irradiance measurements
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Paper Abstract

Sampled irradiance measurement in the image plane of a coherently illuminated object are used to estimate the 2D object brightness profile in a shear beam imaging configuration. A field correlation function is used in a minimum variance irradiance estimation algorithm to optimally estimate the objects 2D brightness from a collection of sampled irradiance measurements on a grid of points in the image plane. The efficacy of the reconstruction method is demonstrated by reconstructing simulated coherently illuminated images of a symmetric extended object, an asymmetric extended object and also a spatially distended point source object. A theoretical error metric is determined and shown to compare favorably with simulated results over a range of object sizes.

Paper Details

Date Published: 30 September 1999
PDF: 13 pages
Proc. SPIE 3815, Digital Image Recovery and Synthesis IV, (30 September 1999); doi: 10.1117/12.364121
Show Author Affiliations
William W. Arrasmith, U.S. Naval Academy (United States)

Published in SPIE Proceedings Vol. 3815:
Digital Image Recovery and Synthesis IV
Timothy J. Schulz; Paul S. Idell, Editor(s)

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