Grid discretization?Optimal path algorithm? the iterate of equation the algorithm comparison are Sumed up the integrated tomography process through System analysis and research carried on.

• 围绕方程的求解，对射线追踪、网格离散化、最佳路径算法、方程的迭代求法、算法比较进行了系统分析和研究，总结出完整的成像过程。