DocumentCode :
3235398
Title :
Capon beamforming applied to second-harmonic ultrasound experimental data
Author :
Näsholm, Sven Peter ; Austeng, Andreas ; Jensen, Are Charles ; Nilsen, Carl-Inge Colombo ; Holm, Sverre
Author_Institution :
Dept. of Inf., Univ. of Oslo, Oslo, Norway
fYear :
2011
fDate :
18-21 Oct. 2011
Firstpage :
2217
Lastpage :
2220
Abstract :
This paper presents the novelty of adaptive Capon beamforming on received experimental second-harmonic pulse-echo ultrasound imaging channel-data. IQ channel datasets were collected when imaging a tissue-mimicking phantom: two with the transmit frequency 1.7 MHz and the receive band-pass filters centered around 1.7 and 3.4 MHz respectively, as well as one with both the transmit and receive center frequencies being 3.4 MHz. Images are displayed and analyzed for all datasets both using Capon and conventional delay-and-sum beamforming. This work proves the feasibility of Capon beamforming applied to tissue-harmonic imaging.
Keywords :
acoustic filters; acoustic signal processing; array signal processing; band-pass filters; biological tissues; biomedical ultrasonics; biomimetics; cellular biophysics; echo; phantoms; ultrasonic devices; ultrasonic imaging; ultrasonic transmission; IQ channel datasets; adaptive Capon beamforming; band-pass filters; center frequencies; conventional delay-and-sum beamforming; frequency 1.7 MHz; frequency 3.4 MHz; frequency transmission; second-harmonic pulse-echo ultrasound imaging channel-data; tissue-harmonic imaging; tissue-mimicking phantom; Acoustics; Array signal processing; Arrays; Biomedical imaging; Frequency conversion; Ultrasonic imaging;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Ultrasonics Symposium (IUS), 2011 IEEE International
Conference_Location :
Orlando, FL
ISSN :
1948-5719
Print_ISBN :
978-1-4577-1253-1
Type :
conf
DOI :
10.1109/ULTSYM.2011.0550
Filename :
6293686
Link To Document :
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