An hybrid Wigner-Ville approach to estimate the ultrasound attenuation in soft biological tissue

被引：0

作者：

Chemla, JP ^{[1
]}

Girault, JM ^{[1
]}

Kouamé, D ^{[1
]}

Lethiecq, M ^{[1
]}

机构：

[1] LUSSI, EIVL, EA2102, F-41034 Blois, France

来源：

1998 IEEE ULTRASONICS SYMPOSIUM - PROCEEDINGS, VOLS 1 AND 2 | 1998年

关键词：

ultrasound; tissue characterization; attenuation estimation; time-frequency analysis; parametric; non-parametric;

D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In this paper, we compare several techniques to evaluate the frequency shift related to the attenuation phenomenon. More precisely, we compare the short time Fourier analysis and the short time autoregressive analysis to new techniques based upon the Wigner-Ville transform with parametric and Iron parametric approaches, In the parametric methods, we propose a new frequency estimator called the mean resonating frequency. All of these methods are evaluated ill terms of relative error and standard deviation Of the attenuation estimation.

引用

页码：1475 / 1478

页数：4

共 9 条

[1] APPLICATION OF AUTOREGRESSIVE SPECTRAL-ANALYSIS FOR ULTRASOUND ATTENUATION ESTIMATION - INTEREST IN HIGHLY ATTENUATING MEDIUM [J].