Implementation of reverse deformation and PE in PPDM

[severous]

Thanks for your excellent work.
I have some questions about the implementation of PPDM

• I would like to know the implementation details of the $PE(\cdot)$ operation in Equation $\psi^{\prime}(x)=Up(h^{\prime}(P E(x)))$. Besides, I would like to know the difference between PE and CoordConv. Can you provide some code references？
• $L_{c y c}=\left|x-x \circ O_1 \cdots \circ O_K \circ O_K^T \cdots \circ O_1^T\right|_2$. Could you provide some implementation details of the grid-sampling function $\circ$?

Thanks for your reply:)

[FlappyPeggy]

• $PE(\cdot)$ is the AddCoords2d function in CoorConv2d, where CoorConv2d apply a Conv2d after $PE(\cdot)$. You can find the code in resnet.py -> class OffsetNet -> self.conv_offset1 and the definition is at the beginning of the code.
• The function $\circ$ is just a torch function: F.grid_sample.
• I apologize for removing the PPDM version "test.py" (including the references of $\circ$) at the moment, as I noticed that someone misunderstood our code. If you need to test PPDM, you can refer to the PDM version or provide an email address so that I can send you the uncleaned (but runnable) code.

[severous]

Thanks for your reply. My email address is [email protected]. please send me the code about PDM and PPDM.

[FlappyPeggy]

Thanks for your reply. My email address is [email protected]. please send me the code about PDM and PPDM.

I have re-uploaded this version :)

[FlappyPeggy]

re-uploaded the file