Megvii-BaseDetection / OTA

Official implementation of our CVPR2021 paper "OTA: Optimal Transport Assignment for Object Detection" in Pytorch.
Apache License 2.0
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A question about a piece of code #11

Open kuazhangxiaoai opened 2 years ago

kuazhangxiaoai commented 2 years ago

I am confused about a piece of code as follow? image

What's the mean of Shift2BoxTransform and its get_deltas?