Statistical Characteristics of Polymer Grouting Material Microstructure

Table 1

Comparison of 2D and 3D image analysis methods.

Image analysis method	Image acquisition method	Computer image analysis method (software packages and algorithms)	Characteristic
2D	OM; SEM	Adobe Photoshop; Matlab; ImageJ; Image-Pro plus; Image graying; Threshold segmentation	Flexibility; Simple operation; Wide amplification range; High resolution; Simple and fast target information processing and extraction; 2D to 3D conversion required
3D	X-CT; MRI; OT; LCM	Mavi; Avizo; Aphelion 3D; Watershed segmentation; Minimum intensity pixelization-based method	Rich information of 3D structure; More information can be extracted; No damage to the interior of the target test piece; High cost of image acquisition; Complex processing