基于CUDA的多角度平面波复合算法研究  

Multi-angle Plane-wave Beamforming Algorithm Based on CUDA

作　　者：伍吉兵 焦阳[1] 张德龙 徐杰[1] 杨晨 崔崤峣[1] WU Jibing;JIAO Yang;ZHANG Delong;XU Jie;YANG Chen;CUI Yaoyao(Suzhou Institute of Biomedical Engineering and Technology,Chinese Academy of Sciences,Suzhou,215163;University of Chinese Academy of Sciences,Beijing,100049)

机构地区：[1]中国科学院苏州生物医学工程技术研究所,苏州市215163 [2]中国科学院大学,北京市100049

出　　处：《中国医疗器械杂志》2018年第5期317-320,共4页Chinese Journal of Medical Instrumentation

基　　金：科技部重点研发计划项目(2017YFC0107202);江苏省省级重点研发专项资金项目(BE2017601);苏州市科技计划项目(SYG201505)

摘　　要：多角度平面波复合算法是超快速超声成像技术的基础,有利于提高传统聚焦超声的成像帧频及分辨率。但是现有的多角度平面波复合技术由于其计算量较大,导致CPU计算耗时不能满足实时成像要求。该文提出了基于CUDA架构的多角度平面波复合算法,并进行了仿真工作以及对比实验。实验结果表明,基于GPU的多角度平面波复合计算耗时远低于CPU计算方法,可以大幅度提高计算速度以满足超声设备实时成像要求。Multi-angle plane-wave beamforming algorithm is the basis of ultra-fast ultrasonic imaging. It can be used to improve the imaging frame rate and resolution of traditional focused ultrasound. However, the existing multi-angle plane-wave technology can not satisfy the real-time imaging requirements due to the huge amount of computation required by CPU. In this paper, We proposed a parallel processing method to reduce the computation time based on compute uni？ed device architecture（CUDA）. Simulation analysis and contrast experiment were conducted to verify its performance. Experimental results show that the execution time based on GPU is much less than that based on CPU, thus the computational speed is accelerated signi？cantly to satisfy the demand of ultrafast imaging.

关 键 词：超声成像 超声平面波 CUDA 并行计算 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] TB559[自动化与计算机技术—计算机科学与技术]