摘要
在高帧率超声成像算法中 ,对回波信号进行有限衍射波束加权处理占用了成像中大部分计算时间 .论文通过讨论高帧率超声成像系统中有限衍射波加权处理接收信号的物理意义 ,提出了一种提高加权处理算法效率的方法 .计算机仿真结果表明它可以在保持成像质量前提下 。
In the a high frame rate (HFR) ultrasonic imaging system, the weighting process by limited diffraction beams on echo signal takes the most of the calculation time for constructing an image. This paper discusses the physical meaning of using limited diffraction to weight received signals, and presents a method to increase the algorithm's effectiveness of the weighting process. Computer simulation shows method it can reduce the amount of calculation while retaining the same imaging quality as that of the original process.
基金
中国科学技术大学归国留学基金 (KB2 5 1 0 )
