阵列背散射成像中图像数据校正的仿真研究

阵列背散射成像是一种有发展潜力的辐射成像技术。与透射成像相比，阵列背散射图像数据校正较为复杂，涉及数据不一致性校正和系统响应曲线调整两个方面。基于阵列背散射成像系统的特点分析，应用蒙特卡罗仿真实验方法，归纳总结出1种增益归一化与斜率调整相结合的阵列背散射图像校正方法。利用该方法对仿真实验得到的数据进行校正，获得了较好的校正效果。

Simulation Study on Data Correction in Array Backscatter Imaging

Backscatter imaging with a detector array (i.e. array backscatter imaging) is a radiation imaging technology which has great development potential. Being quite different from the transmission imaging, data correction in array backscatter imaging is a very complicated problem, including data variance correction and system response curve adjustment. Based on the characteristic analysis of the array backscatter imaging system and the Monte-Carlo simulation experiments, a new way combining gain normalization and slope adjustment was introduced to correct the image data in the array backscatter imaging. By using this method, a good result was obtained for the simulation data correction.