基于变窗口函数的仿人体组织材料超声散射信号处理研究

Processing of the Tissue-mimicking Material Ultrasonic Scattering Signal Based on Variable Window Function

基于仿人体组织材料超声散射成像，提出了一种变窗口函数算法。该算法首先对散射信号进行阈值变换处理，再进行窗口漏检调和，最后对信号进行量化成像。实验表明该技术能够使图像有效区域与噪声明显区别开来，满足后期边缘提取及三维重建要求。

Based on the ultrasonic backscattering imaging of tissue - mimicking phantom, an variable window function algorithm was suggested. At first, the threshold translation process was carried out in backscattering signal. At second, the window- undetection was corrected. At last, the signal achieved by scanning mechanism was quantized to imaging. The experimental result shows that this algorithm could strengthen the difference between noise and interested zone in a target image. The improvement makes it possible for us to do the follow - up research, like edge extraction and three - dimensional reconstruction.