一种高速光声成像系统及其数据采集方法的改进

Design and Optimization of a Photoacoustic Imaging System and Its Data Acquisition

光声成像技术由于其独特的优势,正受到生物医学研究领域越来越多的关注。由于光声信号的高频特性,同时考虑实时成像的需求,在实际应用中要求系统能实现高频数据的高速采集并实时显示。这种大通量数据流为系统的高速采集及实时处理和显示带来了很大的挑战。通过结合生产者/消费者架构和多线程技术,大幅提升了系统的数据采集、处理和显示的速度。结果表明,优化改进后的系统能实现10kA-lines/s的高重频数据采集模式并实时图像显示,为光声技术走向实际应用奠定了重要的基础。

Photoacoustic imaging technology is receiving more and more attention in the field of biomedical research due to its unique advantages.With the high-frequency characteristics of optical acoustic signal and the need of real-time imaging, the system is required to realize the high-speed acquisition of data and display in real time in practical applications.The large-volume data flow poses great challenges to the high-speed acquisition and real-time processing and display of the system.By combining producer/consumer architecture and multithreaded technology, the speed of data acquisition, processing and display of the system were greatly improved. The results show that the optimized and improved system can realize the high-frequency data acquisition mode of 10 kA-lines/s and display real-time image.It has laid an important foundation for the practical application of photoacoustic technology.