Figure 10
From: Wave based damage detection in solid structures using spatially asymmetric encoder–decoder network
The relationship between crack size and evaluation metrics. The IoU values of 320 test cases are calculated by the model trained with \(\gamma = 0.1\) and \(\alpha = 0.9\). (A) 1. the 6 histograms of the IoU values that are calculated with 6 different binarization threshold (\(T_{bin}\) = 0.3, 0.4, 0.5, 0.6, 0.7, 0.8); 2. the accumulated histograms of the IoU values that are calculated with 6 different thresholds. (B) The adjusted accuracy for test data after excluding tiny crack cases. The line plot presents the accuracy that is re-calculated when excluding cases with crack size less than 0.001, 0.002, 0.003, and 0.004; the bar chat shows the number of samples after excluding the samples with tiny cracks against the total number of samples in test dataset. (C) IoU values distribution w.r.t crack size.
