Table 1

Performance comparison using FID (Frechet Inception Distance) and KID (Kernel Inception Distance) between original CycleGAN and C2ycleGAN in the test dataset

FIDP valueKIDP value
CFPCycleGAN102.96±5.18<0.0010.0630±0.0036<0.001
C2ycleGAN80.78±2.200.0281±0.0021
UWFCycleGAN90.18±2.69<0.0010.0414±0.0057<0.001
C2ycleGAN70.64±1.950.0085±0.0016
  • FID and KID of original CycleGAN and C2ycleGAN for generation of postoperative CFP and UWF images were calculated and compared using t-test for two paired means.

  • CFP, colour fundus photography; UWF, ultra-wide field.