光中子爆炸物成像的一种还原方法

A method of image restoration for a photo-neutron explosive detection system

针对光中子成像中的模糊图像还原问题,研究了模糊来源,建立了一种物理数学模型。在此基础上,分别使用非约束条件下以及约束条件下的迭代算法,对数学模型进行求解。模拟及实验数据反解结果表明,约束条件下的反解算法能有效地消除成像中的模糊重叠现象,有利于更加清晰准确地判断被探测物的性质。

To improve imaging performance of photo-neutron explosive detection system, reasons of spatial resolution deterioration is investigated, and physical and mathematical model are established. The function is solved using iterative algorithm under constraints and non-constraints condition, respectively. The simulation and experiment results show that the method with constraints can improve effectively accuracy of the explosives detection system by eliminating the pixel overlapping.