Comments (3)
Based on my understanding, the current literature often emphasizes the importance of maintaining topology when introducing this module, but lacks guidance on the selection process. In practice, when a sufficiently reasonable deformation field is required (with minimal folding), introducing a velocity field representation can be beneficial. However, as demonstrated in the code snippet, introducing such a velocity field representation incurs additional computational overhead and, empirically, may compromise model accuracy. This presents a trade-off scenario where the choice must be made based on specific contexts, whether prioritizing real-time computation or requiring a more resonable representation.
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Thank you for comments.I've found few articles online about velocity fields, none of them explain it clearly to me. As you mentioned, velocity fields are introduced to preserve topological structures. So, would you recommend understanding the inputs and outputs of this class and using it directly, without focusing on the mathematical details?
from smilecode.
The input to the network layer is the same size as the output, meaning that the shape of the deformation field determines the shape of the input velocity field.
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