Compressive sampling for time critical microwave imaging applications

Healthcare Technology Letters

article

Darren Craven¹  Martin O'Halloran¹  Brian McGinley¹  Raquel C. Conceicao²  Liam Kilmartin¹  Edward Jones¹  Martin Glavin¹ 

[1] College of Engineering and Informatics, National University of Ireland Galway, University Road;Universidade de Lisboa, Instituto de Biofisica e Engenharia Biomedica

关键词: compressed sensing;    microwave imaging;    biomedical imaging;    data acquisition;    reconstruction quality;    subsampling acquisition;    compressed sensing;    imaging time;    data acquisition time;    biomedical imaging;    time critical microwave imaging;    compressive sampling;   

DOI  :  10.1049/htl.2013.0043

学科分类：肠胃与肝脏病学

来源: Wiley

【 摘 要 】

Across all biomedical imaging applications, there is a growing emphasis placed on reducing data acquisition and imaging times. This research explores the use of a technique, known as compressive sampling or compressed sensing (CS), as an efficient technique to minimise the data acquisition time for time critical microwave imaging (MWI) applications. Where a signal exhibits sparsity in the time domain, the proposed CS implementation allows for sub-sampling acquisition in the frequency domain and consequently shorter imaging times, albeit at the expense of a slight degradation in reconstruction quality of the signals as the compression increases. This Letter focuses on ultra wideband (UWB) radar MWI applications where reducing acquisition is of critical importance therefore a slight degradation in reconstruction quality may be acceptable. The analysis demonstrates the effectiveness and suitability of CS with UWB applications.

【 授权许可】

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