A NEW ADAPTIVE MEAN FREQUENCY ESTIMATOR - APPLICATION TO CONSTANT VARIANCE COLOR-FLOW MAPPING

被引：7

作者：

HERMENT, A ^{[1
]}

DEMOMENT, G ^{[1
]}

DUMEE, P ^{[1
]}

GUGLIELMI, JP ^{[1
]}

DELOUCHE, A ^{[1
]}

机构：

[1] UPS,ESE,CNRS,L2S,F-91192 GIF SUR YVETTE,FRANCE

来源：

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 1993年 / 40卷 / 06期

关键词：

COLOR FLOW MAPPING; MEAN FREQUENCY; CORRELATION FUNCTION; ADAPTIVE ESTIMATION;

D O I：

10.1109/58.248225

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A class of adapted mean frequency estimators is proposed for color flow mapping. These estimators can be fitted to the specific characteristics of a given Doppler signal to optimize the compromise between the range of analysable frequencies and the variance of mean frequency estimation. A sub-optimal estimator is derived for real-time applications, and an adaptive criterion based on the Doppler signal variance is developed for color flow mapping applications. Its performance is compared to that of the usual correlation phase estimator on simulated Doppler signals and on synthetic Doppler images. An improvement in image quality is achieved, mainly for low signal-to-noise ratio Doppler signals.

引用

页码：796 / 804

页数：9

共 7 条

[1] DISCRETE-TIME ESTIMATION OF THE MEAN DOPPLER FREQUENCY IN ULTRASONIC BLOOD VELOCITY-MEASUREMENTS [J].

ANGELSEN, BAJ ;

KRISTOFFERSEN, K .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1983, 30 (04) :207-214

[2] A NEW ALIASING EXTENSION METHOD FOR ULTRASONIC TWO-DIMENSIONAL PULSED DOPPLER SYSTEMS [J].

BAEK, KR ;

BAE, MH ;

PARK, SB .

ULTRASONIC IMAGING, 1989, 11 (04) :233-244

[3] ADAPTIVE ESTIMATION OF THE MEAN FREQUENCY OF A DOPPLER SIGNAL FROM SHORT DATA WINDOWS [J].

HERMENT, A ;

DEMOMENT, G ;

GUGLIELMI, JP ;

DUMEE, P ;

PELLOT, C .

ULTRASOUND IN MEDICINE AND BIOLOGY, 1991, 17 (09) :901-919

[4] REAL-TIME TWO-DIMENSIONAL BLOOD-FLOW IMAGING USING AN AUTO-CORRELATION TECHNIQUE [J].

KASAI, C ;

NAMEKAWA, K ;

KOYANO, A ;

OMOTO, R .

IEEE TRANSACTIONS ON SONICS AND ULTRASONICS, 1985, 32 (03) :458-464

[5] TIME-DOMAIN ESTIMATION OF THE CENTER FREQUENCY AND SPREAD OF DOPPLER SPECTRA IN DIAGNOSTIC ULTRASOUND [J].

KRISTOFFERSEN, K .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 1988, 35 (06) :685-700

[6] COVARIANCE APPROACH TO SPECTRAL MOMENT ESTIMATION [J].

MILLER, KS ;

ROCHWARGER, MM .

IEEE TRANSACTIONS ON INFORMATION THEORY, 1972, 18 (05) :588-+

[7] SPECKLE IN CONTINUOUS WAVE DOPPLER ULTRASOUND SPECTRA - A SIMULATION STUDY [J].

MO, LYL ;

COBBOLD, RSC .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 1986, 33 (06) :747-753

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