摘要
超声弹性成像技术的基本思想就是从超声信号中获取生物组织的硬度/弹性信息并进行成像。超声弹性成像中,生物组织的位移估计是估算应变的关键。介绍两种位移估计的算法:零相位算法与互相关算法。并从时间,准确度上来对比两种算法,哪种在获取位移值上效果更佳。
The basic idea of the ultrasound elastography technique is to obtain biological tissue hardness/elasiticity information from the ultrasound signal and image. In ultrasound elastography, the key of the estimates response is biological tissue displacement. Provide two algorithms, zero-phase algorithm and cross-correlation algorithm. Compare the zero-phase algorithm and cross-correlation algorithm both in time and accuracy, which will have better effect.
关键词
超声弹性成像
零相位算法
互相关算法
Ultrasound Elastography
Zero-Phase Algorithm
Cross-Correlation Algorithm
