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. 2022 Jun 3;10(6):1314. doi: 10.3390/biomedicines10061314

Figure 4.

Figure 4

Gradient-weighted class activation mapping (Grad-CAM) identifying features extracted for classification in the Taipei Veterans General Hospital (TVGH) model. The hot spots (red color) were localized at the optic nerve head, with some extending to the peripapillary nerve fiber bundles in both glaucoma (A,B) and healthy eyes (C,D).