https://scholars.lib.ntu.edu.tw/handle/123456789/632133
標題: | Acoustic-Field Beamforming-Based Generalized Coherence Factor for Handheld Ultrasound | 作者: | Hu C.-L Li C.-J Cheng I.-C Sun P.-Z HBORCHING SU Cheng H.-H Lin Z.-S CHII-WANN LIN Li M.-L. |
關鍵字: | Acoustic-field beamforming; Coherence factor; Generalized coherence factor; Handheld ultrasound; Portable ultrasound; Weighting | 公開日期: | 2022 | 卷: | 12 | 期: | 2 | 來源出版物: | Applied Sciences (Switzerland) | 摘要: | Handheld ultrasound devices have been widely used for diagnostic applications. The use of the acoustic-field beamforming (AFB) method has been proposed for handheld ultrasound to reduce electricity consumption and avoid battery and unwanted heat issues. However, the image quality, such as the contrast ratio and contrast-to-noise-ratio, are poorer with this technique than with the conventional delay-and-sum method. To address the problems associated with the worse image quality in AFB imaging, in this paper we propose the use of an AFB-based generalized coherence factor (GCF) technique, in which the GCF weighting developed for adaptive beamforming is extended to AFB. Simulation data, experimental results, and in vivo testing verified the efficacy of our proposed AFB-based GCF technique. © 2022 by the authors. Licensee MDPI, Basel, Switzerland. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85122343358&doi=10.3390%2fapp12020560&partnerID=40&md5=a97f695b5cc2685eff0e7b833a92d9df https://scholars.lib.ntu.edu.tw/handle/123456789/632133 |
ISSN: | 20763417 | DOI: | 10.3390/app12020560 |
顯示於: | 電機工程學系 |
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