NDLI: Continuous-domain ARMA modeling for ultrasound tissue characterization

Content Provider	IEEE Xplore Digital Library
Author	Maggio, S. Alessandrini, M. Speciale, N. Bernard, O. Vray, D. Basset, O. Unser, M.
Copyright Year	2011
Description	Author affiliation: CREATIS, CNRS UMR5220, INSERM U630, Université de Lyon, Insa-Lyon, Villeurbanne, France (Bernard, O.; Vray, D.; Basset, O.) \|\| Biomedical Imaging Group, École polytechnique fédérale de Lausanne, Switzerland (Unser, M.) \|\| ARCES, Università di Bologna, Italy (Alessandrini, M.) \|\| Department of Electronics, Computer Sciences and Systems, Università di Bologna, Italy (Maggio, S.; Speciale, N.)
Abstract	In this study, we investigate the possibility of applying a continuous-time ARMA (CARMA) model to radio-frequency ultrasound signals. We consider the effect of the discretization process on the parameters of the continuous system, and we take into account the exponential nature of the autocorrelation function of the model to derive continuous-domain information from the parameters of the discrete ARMA process. We validate the effectiveness of the CARMA model parameters for the characterization of ultrasound tissues on a sequence of phantom images that represent various concentrations of scatterers. We also compare the proposed CARMA coefficients and the traditional ARMA parameters on the basis of their performance in discriminating between phantom tissues. We show that working in the continuous domain brings additional useful information to characterize the imaged materials.
Starting Page	895
Ending Page	898
File Size	312648
Page Count	4
File Format	PDF
ISBN	9781424441273
ISSN	19457928
DOI	10.1109/ISBI.2011.5872548
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-03-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ultrasonic imaging Computational modeling Spline Estimation Poles and zeros Numerical models Radio frequency exponential spline ARMA CARMA ultrasound tissue characterization
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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