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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2482

Title: Maximum entropy image restoration in astronomy
Authors: Narayan, R.
Nityananda, R.
Issue Date: 1986
Publisher: Annual Reviews
Citation: Annual Review of Astronomy and Astrophysics, 1986, Vol.24, p127-170
Abstract: The theoretical basis and applications of the Maximum Entropy Method of inference for obtaining the most probable nonnegative image consistent with astronomical data are detailed. The generalized image restoration problem is reviewed, noting the effects of atmospheric blurring and the practice of representing images as a Fourier series. The problem is encountered in both single aperture and synthesis observations, and also exists for faint sources viewed from space-based platforms. A review of theoretical expressions for entropy, modified to fit communication theory, demonstrates that using prior knowledge of the object being imaged can greatly assist the clarification of observed images. Algorithms are defined for obtaining the enhanced images by statistical methods.
Description: Restricted Access.
URI: http://hdl.handle.net/2289/2482
Alternative Location: http://adsabs.harvard.edu/cgi-bin/bib_query?1986ARA&A..24..127N
http://dx.doi.org/10.1146/annurev.aa.24.090186.001015
Copyright: 1986 Annual Reviews
Appears in Collections:Research Papers (A&A)

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