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sanghoon / pva-faster-rcnn

Demo code for PVANet
https://arxiv.org/abs/1611.08588
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Why using PowerLayer for identity mapping? #33

Closed yijunCai closed 7 years ago

yijunCai commented 7 years ago

Hi @sanghoon I notice that for short-cut connections, A PowerLayer is used for identity mapping（since both power and scale are set to 1） as follows:

layer { name: "conv2_3/input" type: "Power" bottom: "conv2_2" top: "conv2_3/input" power_param { power: 1 scale: 1 shift: 0 } } layer { name: "conv2_3" type: "Eltwise" bottom: "conv2_3/3" bottom: "conv2_3/input" top: "conv2_3" eltwise_param { operation: SUM coeff: 1 coeff: 1 } }

I'm wondering if "conv2_3/input" is neccessary. Why not take "conv2_2" directly as bottom input for "conv2_3"?

xiaoxiongli commented 7 years ago

i think you can.

sanghoon commented 7 years ago

You can exclude the redundant Power layers. I've added them so that I can easily generate the prototxt with my own script, but they do nothing.

zimenglan-sysu-512 commented 7 years ago

@sanghoon can you share your script which to generate the prototxt? thanks.