PSI - Issue 62

Azadeh Yeganehfallah et al. / Procedia Structural Integrity 62 (2024) 201–208 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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(PAED). The brief concept of this metric is based on the distance of the predicted pixel as a crack to the original position of the corresponding crack pixel. The smaller the PAED metrics, the more precise the model. For this goal, we considered the shape of the crack in the original mask as S 1 , and in the predicted mask as S 2 . We considered the ( , 1 ) function as the minimum distance of the point “ P ” to the shape S 2 , then we extend this function to all the points on the S 1 to calculate the distance of shape S 1 to the S 2 . ( , 1 ) = ∈ | − | (2) ( 1 − 2 ) = ∑ ( , 2 ) ∈ 1 (3) = ( ( 1 , 2 ) + ( 2 , 1 )) ( 1 ) + ( 2 ) (4)

Fig. 4. Development result for the image and its corresponding IoU and PAED metric.