About ROIAlign about dfdnet HOT 3 CLOSED

First appreciate your great works. I have simply checked the code in this repository and found a question on the component feature extraction and insertion.

I find you mentioned that using the ROIAlign for getting patches from feature maps in paper, but the code seems to simply crop patches using specified coordinates from the landmarks.

Is that a unsupported feature in this version of code 😃 .

Hi, RoIAlign contains crop and resize operation. Directly Using RoIAlign is ok and faster than our code, I also test it in the later version. However, considering the reverse RoIAlign, which can not have packages to support it, I use simple crop and resize in our code.

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@csxmli2016
Thanks for your reply, I am also interested in the implementation of the reverse ROIAlign, could you simply introduce how to do it?

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@csxmli2016
Thanks for your reply, I am also interested in the implementation of the reverse ROIAlign, could you simply introduce how to do it?

For example, we crop the left eye and resize it from H*W to H'W'. After enhancement, we resize the left eye from H'W' to HW (this is reverse RoIAlign). Then take the HW feature to its original location.

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