基于多传感器探测的X射线安检技术研究

针对X射线双能透射和康普顿背散射两种成像方式的各自特点,提出了一种基于互补信息特征的图像融合系统设计方案,可获得综合双能量透射与康普顿背散射双重信息,且高原子序数与低原子序数的两种物质均清晰的彩色融合图像。该融合方法依据冗余性和互补性区域的判断,根据透射和背散射图像中影像的特点,采取不同的融合规则,不仅能够提供一定的被检物品的材料信息和空间位置信息,还可进行相应的色彩警示,从而提高安检设备对违禁物品的探测效能。

Study on X-ray Security Inspection Technology Based on Multi-sensor Detection

Considering the imaging characteristics of dual-energy transmission and Compton back-scattering,a new image fusion design scheme is presented based on complementary mutual information characteristic. A color fused image with dual information from both dual-energy transmission and Compton back-scattering is obtained,in which subjects with either high or low atomic number are reasonably clear.According to the judgment on the regional redundancy and mutual complementarity,different fusion strategies are selected.The material and spatial information on the inspected object are provided,and the pseudo-color caution is given at same time,this can improve the efficiency of instruments for contraband inspecting.