【摘要】 文中算法第一级建立像素到其吸收系数的映射 ;第二级建立图像吸收系数矩阵到射线投影值的映射 ;最后由一级网络的输出构建吸收系数矩阵 该算法可以在较少投影数据量的条件下提高重建图像质量 ,为火箭发动机等大体积产品的无损检测或反求提供支撑技术更多还原

【Abstract】 The first grade neural network maps the pixels to their attenuation coefficient, then the second grade maps the attenuation coefficient matrix to projection data. Finally the image is reconstructed from attenuation coefficient matrix through the trained neural network in the first grade. Such an approach can support the nondestructive test or reverse engineering for rocket engine or other huge volume products.更多还原