CascadePSP performed bad on small object

[CeciliaPYY]

It seems cascadePSP's performance is not good enough when dealing with small objects, the following is the before and after.

[hkchengrex]

That's correct. We assume that the target object occupies a significant portion of the input image. If you are dealing with small objects it is probably better to crop the image (with a dilated minimum bounding box) first. We did similar things in the scene parsing part of our paper.

[CeciliaPYY]

Thanks for reply, I'll give it a try~~