End to End Multitask Joint Learning Model for Osteoporosis Classification in CT Images

Figure 11

Grad-CAM visualization of 9 cases. It can be seen that different categories of networks have different emphases, which can be used as an explanation of neural networks. The first line of each two lines represents the L1 vertebrae, and the second line represents the corresponding L2 vertebrae. The first two lines represent osteoporosis cases, the middle two lines represent osteopenia cases, and the last two lines represent normal cases.