Fig. 4From: A cascading learning method with SegFormer for radiographic measurement of periodontal bone lossScatter plot of the PCA principal axis method versus the measurements taken by clinicians. (a) and (b) scatter plots for all teeth, whereas (c)-(j) scatter plots for four distinct types of teeth. The x-axis denotes the PCA principal axis ratio, specifically A/B from Fig. 2, and the y-axis represents the measurement values. PCA, principal component analysisBack to article page