In Situ Investigation of the 3D Mechanical Microstructure at Nanoscale: Nano-CT Imaging Method of Local Small Region in Large Scale Sample

Table 1

Criteria values for the local reconstruction of the stacked particles phantom.

Algorithm	𝑑	Relative change of 𝑑	𝑟	Relative change of 𝑟	𝑐	Relative change of 𝑐
FBP	0.6446	—	0.7782	—	0.7896	—
Method in [13]	0.4347	↑32.56%	0.5295	↑31.96%	0.9047	↑14.58%
Method in this paper	0.3918	↑39.22%	0.4749	↑38.97%	0.9222	↑16.79%