High-speed 3D imaging system using coded wavefront generated by Walsh function modulated signals
High-speed 3D imaging system using coded wavefront generated by Walsh function modulated signals
复制标题
使用沃尔什函数调制信号生成的编码波前的高速 3D 成像系统
DOI：
10.1109/ultsym.2002.1192626
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
H. Yanagida
中科院分区：
文献类型：
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作者：
Y. Tamura;C. Ishihara;N. Okada;N. Ishii;M. Sato;T. Aoki;T. Hisamoto;H. Yanagida
研制了一种用于高速数据采集的实验性超声三维成像系统。每次通过沃尔什函数调制的脉冲传输都可以重建三维图像。开发了40/spl次/40 2mhz元件的矩阵换能器和数据采集系统来评估系统的性能。本文介绍了二维阵列的原理、制作过程和数据采集系统。利用该系统成功地获得了32次传输的标准超声影的动态范围为20 dB的三维图像。
An experimental ultrasonic three dimensional (3D) imaging system for high-speed data acquisition has been developed. A 3D image can be reconstructed for each transmission of pulses modulated by Walsh functions. Matrix transducers of 40/spl times/40 2 MHz elements and a data acquisition system have been developed to evaluate the system performance. In this paper, we describe the principle, the fabrication process of the 2D array, and the data acquisition system. Three dimensional images of 20 dB dynamic ranges were successfully obtained for standard ultrasonic phantoms with 32 transmissions using the developed system.