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Signal Processing Magazine, IEEE

Issue 2 • Date March 2001

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Displaying Results 1 - 9 of 9
  • From images and signals to information in astronomy [Guest Editorial]

    Publication Year: 2001 , Page(s): 10
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    Freely Available from IEEE
  • Astronomical image and signal processing: looking at noise, information and scale

    Publication Year: 2001 , Page(s): 30 - 40
    Cited by:  Papers (12)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (248 KB) |  | HTML iconHTML  

    We present methods used to measure the information in an astronomical image, in both a statistical and a deterministic way. We discuss the wavelet transform and noise modeling, and describe how to measure the information and the implications for object detection, filtering, and deconvolution. The perspectives opened up by the range of noise models, catering for a wide range of eventualities in physical science imagery and signals, and the new two-pronged but tightly coupled understanding of the concept of information have given rise to better quality results in applications such as noise filtering, deconvolution, compression, and object (feature) detection. We have illustrated some of these new results in this article. The theoretical foundations of our perspectives have been sketched out. The practical implications, too, are evident from the range of important signal processing problems which we can better address with this armoury of methods. The results described in this work are targeted at information and at relevance. While we have focused on experimental results in astronomical image and signal processing, the possibilities are apparent in many other application domains. View full abstract»

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  • Digital image processing algorithms and applications. I[Book Review]

    Publication Year: 2001 , Page(s): 58
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  • Fundamentals of global positioning system receivers.[Book Review]

    Publication Year: 2001 , Page(s): 58
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    Freely Available from IEEE
  • The transform and data compression handbook. [Book Review]

    Publication Year: 2001 , Page(s): 58
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    Freely Available from IEEE
  • High-speed digital system design, a handbook of interconnect theory and design practices.[Book Review]

    Publication Year: 2001 , Page(s): 58
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  • Interconnect analysis and synthesis. [Book Review]

    Publication Year: 2001 , Page(s): 58
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  • Image restoration in astronomy: a Bayesian perspective

    Publication Year: 2001 , Page(s): 11 - 29
    Cited by:  Papers (37)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (656 KB) |  | HTML iconHTML  

    When preparing an article on image restoration in astronomy, it is obvious that some topics have to be dropped to keep the work at reasonable length. We have decided to concentrate on image and noise models and on the algorithms to find the restoration. Topics like parameter estimation and stopping rules are also commented on. We start by describing the Bayesian paradigm and then proceed to study the noise and blur models used by the astronomical community. Then the prior models used to restore astronomical images are examined. We describe the algorithms used to find the restoration for the most common combinations of degradation and image models. Then we comment on important issues such as acceleration of algorithms, stopping rules, and parameter estimation. We also comment on the huge amount of information available to, and made available by, the astronomical community View full abstract»

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  • Steps towards a virtual solar observatory

    Publication Year: 2001 , Page(s): 41 - 48
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (632 KB) |  | HTML iconHTML  

    We present three categories of sites from which solar data can be retrieved. We describe the retrieval software systems associated with these sites and then present software systems used for analyzing solar data. We show that both retrieval and analysis systems provide only limited global organization and/or standard access of data. We thus also discuss extensions to these systems, including data combination (or mapping) software, reusable software components, and visualization software. We argue that such extensions could eventually provide die level of software support expected by users View full abstract»

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Aims & Scope

IEEE Signal Processing Magazine publishes tutorial-style articles on signal processing research and applications, as well as columns and forums on issues of interest.

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Meet Our Editors

Editor-in-Chief
Min Wu
University of Maryland, College Park
United States 

http://www/ece.umd.edu/~minwu/