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Dictionary Approaches to Image Compression and Reconstruction: by Nigel A. Ziyad

By Ziyad, Nigel A.

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Book Id: WPLBN0000680982
Format Type: PDF eBook
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Title: Dictionary Approaches to Image Compression and Reconstruction: by Nigel A. Ziyad  
Author: Ziyad, Nigel A.
Volume:
Language: English
Subject: Government publications, National Aeronautics and Space Administration (U.S.), NASA reference publication
Collections: NASA Publication Collection
Historic
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Publisher: National Aeronautics and Space Administration

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A, Z. N. (n.d.). Dictionary Approaches to Image Compression and Reconstruction. Retrieved from http://members.worldebooklibrary.org/


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Abstract: This paper proposes using a collection of parameterized waveforms, known as a dictionary, for the purpose of medical image compression. These waveforms, denoted as fg, are discrete time signals, where g represents the dictionary index. A dictionary with a collection of these waveforms is typically complete or over complete. Given such a dictionary, the goal is to obtain a representation image based on the dictionary. We examine the effectiveness of applying Basis Pursuit (BP), Best Orthogonal Basis (BOB), Matching Pursuits (MP), and the Method of Frames (MOF) methods for the compression of digitized radiological images with a wavelet-packet dictionary. The performance of these algorithms is studied for medical images with and without additive noise...

 

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