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Stability of Efficient Deterministic Compressed Sensing for Images with Chirps and Reed-Muller Sequences
Author(s) -
Somantika Datta,
Kang-Yu Ni,
P. Mahanti,
Svetlana Roudenko
Publication year - 2013
Publication title -
applied mathematics
Language(s) - English
Resource type - Journals
eISSN - 2152-7393
pISSN - 2152-7385
DOI - 10.4236/am.2013.41a029
Subject(s) - compressed sensing , robustness (evolution) , wavelet , computer science , noise (video) , stability (learning theory) , image (mathematics) , algorithm , artificial intelligence , basis (linear algebra) , sparse approximation , computer vision , pattern recognition (psychology) , mathematics , machine learning , biochemistry , chemistry , geometry , gene

We explore the stability of image reconstruction algorithms under deterministic compressed sensing. Recently, we have proposed [1-3] deterministic compressed sensing algorithms for 2D images. These algorithms are suitable when Daubechies wavelets are used as the sparsifying basis. In the initial work, we have shown that the algorithms perform well for images with sparse wavelets coefficients. In this work, we address the question of robustness and stability of the algorithms, specifically, if the image is not sparse and/or if noise is present. We show that our algorithms perform very well in the presence of a certain degree of noise. This is especially important for MRI and other real world applications where some level of noise is always present.

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