It is the same as whole image reconstruction that the image of local tomography is sharpen and has high special resolution for crack of SRM. It was suggested that the FBP local tomography algorithm should be widely used.

• 与整体图像重建算法一样,FBP局部重建的图像清晰,缺陷分辨率高,重建速度快,具有很好的应用价值。