IRR-Net: A Joint Learning Framework for Image Reconstruction and Recognition of Photoacoustic Tomography

Table 5

Training time in hours.

	5 DGD + GoogLeNet	DGD + U-Net + ResNet	1 DGD + GoogLeNet	IRR-Net
Total training time	27.6	11	6.8	5.3
Training time of reconstruction network	26	6.5	5.2	—
Training time of optimization network	—	2.4	—	—
Training time of classifier	1.6	2.1	1.6	—