3D XCT Mesostructure Characterization and Image-Based Discrete Element (DE) Modelling of Failure Patterns in Coal Gangue Particles (CGPs)

Table 1

Comparison for segmentation and validation results of CGPs.

Sample size (mm)	Resolution (μm)	Scale parameter	Segmentation algorithm	Composition analysis (%)		Error (%)
				Coal	Gangue
1∼2	35.35	28	Thresholding	62.79	37.21	28.08
	35.35	28	Feature-based	73.24	26.76
3∼5	35.35	84	Thresholding	56.68	43.32	6.34
	35.35	84	Feature-based	59.43	40.57