Distilling-Object-Detectors when distillation with FPN，which feature map shuold we select to calculate imitation loss, feature map of FPN(P3、P4...) or feature of backbone(C3、C4...) or others?

when distillation with FPN，which feature map shuold we select to calculate imitation loss, feature map of FPN(P3、P4...) or feature of backbone(C3、C4...) or others?

Open UcanSee opened this issue 5 years ago • 4 comments

Jan 14 '20 04:01 UcanSee

Hi, fpn features (p3, p4...) are used.

Jan 16 '20 10:01 twangnh

when distilling Faster RCNN with FPN, do we need to firstly assign gt box to different FPN level and then generate imitation region? Or for every FPN level, we generate imitation region according to all gt boxes?

Feb 26 '20 03:02 UcanSee

on each level of fpn, only the assigned gt box will be used calculate the imitation region

Mar 07 '20 12:03 twangnh

the question is how to assign gt box to different level? could you please explain in detail?

Sep 02 '20 07:09 UcanSee

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when distillation with FPN，which feature map shuold we select to calculate imitation loss, feature map of FPN(P3、P4...) or feature of backbone(C3、C4...) or others?

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