eprintid: 2194
rev_number: 9
eprint_status: archive
userid: 17
dir: disk0/00/00/21/94
datestamp: 2016-12-08 16:57:47
lastmod: 2016-12-08 16:59:05
status_changed: 2016-12-08 16:57:47
type: article
metadata_visibility: show
creators_name: Tran, Quang Huy
creators_name: Tran, Duc Tan
creators_name: Huynh, Huu Tue
creators_name: Ton, That Long
creators_name: Nguyen, Linh Trung
creators_id: huytq@gmail.com
creators_id: tantd@vnu.edu.vn
creators_id: hhtue@hcmiu.edu.vn
creators_id: ttlong@hcmiu.edu.vn
creators_id: linhtrung@vnu.edu.vn
title: Influence of dual-frequency combination on the quality improvement of ultrasound tomography
ispublished: pub
subjects: ECE
subjects: isi
divisions: fac_fet
abstract: The most useful feature of ultrasound tomography founded on the inverse scattering theory is that it can detect small structures below the wavelength of the pressure wave. A popular method introduced in ultrasound tomography is the Distorted Born Iterative Method (DBIM). Recently, the dual-frequency combination technique has been utilized to improve the reconstruction quality and increase the convergence rate of the DBIM. This method uses two frequencies, f_1 (low) and f_2 (high), to estimate the sound contrast in N_f1 and N_f2 iterations, respectively. However, the influence of these iteration parameters on the overall performance of the system is not yet known. In this paper, it is shown by using the simulation technique that if we do not pay attention to the choice of these parameters, the reconstruction quality might be worse than that using a single frequency. Furthermore, we focus on the best way to select the parameters in order to improve the reconstruction quality of ultrasound tomography. Given a fixed sum N iter of N_f1 and N_f2 , simulation results show that the best value of N_f1 is N_iter/2; this choice of parameters offers a normalized error that reduces by 67.6%, compared to the conventional DBIM using a single frequency.
date: 2016-03
date_type: published
publisher: SAGE Publications
official_url: http://dx.doi.org/10.1177/0037549716630605
full_text_status: restricted
publication: Simulation: Transactions of The Society for Modeling and Simulation International
volume: 92
number: 3
pagerange: 267-276
refereed: TRUE
issn: 1741-3133
citation:   Tran, Quang Huy and Tran, Duc Tan and Huynh, Huu Tue and Ton, That Long and Nguyen, Linh Trung  (2016) Influence of dual-frequency combination on the quality improvement of ultrasound tomography.  Simulation: Transactions of The Society for Modeling and Simulation International, 92  (3).   pp. 267-276.  ISSN 1741-3133     
document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/2194/1/SIMULATION-2016-Tran-267-76.pdf