LipNet-PyTorch
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Confusion about the standard face to be aligned
https://github.com/VIPL-Audio-Visual-Speech-Understanding/LipNet-PyTorch/blob/40209e09c49553c00c25c7d41faa3706aea3c625/scripts/extract_lip.py#L91
Why set the standard face by this way (including the parameters of affine transformation)? Could you give more specific insights?