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International Journal of Concrete Structures and Materials

Table 6 CNN results excluding edges of pores.

From: Automated Detection of Surface Cracks and Numerical Correlation with Thermal-Structural Behaviors of Fire Damaged Concrete Beams

Specimens

The number of pixels excluding pore edges from the proposed CNN model

Ratio to total crack length obtained from the optical observation

Ratio to heated surfaces (%)

P1-60

11,683,021

1.53 × 102

4.73

P1-120

17,638,559

2.10 × 102

7.14

P2-60

13,619,863

1.79 × 102

5.52

P2-120

18,303,122

2.11 × 102

7.41

P3-60

14,972,710

1.92 × 102

6.06

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