Discrepancy in SSIM and CPBD metrics

[Rosiekk]

Excellent work! We refer to https://github.com/Po-Hsun-Su/pytorch-ssim and calculate SSIM on generated G_Pose_Driven_/ and Pose_Source_ but find the results much smaller than those in the paper. We also refer to https://github.com/0x64746b/python-cpbd for CPBD metric but fail to reproduce the test results. We haven't found LMD metric yet but can we just use LSE-D proposed in Wav2lip as a replacement of it? Looking forward to your reply!