摘要
本文通过考察目前反射式超声层析成象中的进展和问题,导出了一种圆周观测模式下的图象逆变换解近似公式,并相应地构造出了一种反射式超声层析成象实现算法。这一算法兼顾了成象速度和成象分辨力两个方面,且适用于工程。文中还对反射式超声层析成象算法进行了计算机模拟。模拟结果表明该算法是可行的。
By examaining the recent developments in reflection-mode ultrasonic tomographicimaging, we derive an approximate image inverse transform solution equation undercircum-ference observing model, and construct an algorithm to be used to realize the re-flection-mode ultrasonic tomographic imaging. The imaging speed and resolution are bothgiven due consideration in the algorithm. We have also simulated the imaging algorithm bycomputer. The simulated results indicate that our algorithm is feasible.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
1990年第3期17-26,共10页
Journal of Xidian University
关键词
反射式
超声CT
层析成像
算法
ultrasonic CT
tomographic imaging
imaging algorithm
imaging from projections
