why regression target need divide per level stride？

xingyizhou / CenterNet2

Two-stage CenterNet

Apache License 2.0

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Open 2anchao opened 2 years ago

2anchao commented 2 years ago

Links to the relevant documentation/comment: reg_targets[l] = reg_targets[l] / float(self.strides[l])

xingyizhou commented 2 years ago

This follows FCOS. I haven't checked if this is necessary.