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VGG版本和ResNet版本FPS #131

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CK11111 opened this issue May 15, 2021 · 2 comments
Open

VGG版本和ResNet版本FPS #131

CK11111 opened this issue May 15, 2021 · 2 comments

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@CK11111
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CK11111 commented May 15, 2021

作者您好，刚学习深度学习方面的知识有些不太理解。我想问一下，理论上ResNet参数和计算量都要比VGG小，为什么RCF-VGG的fps要比RCF-ResNet的fps高？？
@yun-liu
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yun-liu commented May 15, 2021 •
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@CK11111 您好。ResNet比VGG速度快的版本只有ResNet18吧。

VGG的参数和计算量大是因为后面的几层全连接层，但是在全卷积网络（FCN）里，这些全连接层都被去掉了。实际上，VGG卷积层的参数量是14M，ResNet50是25M，ResNet101更大。而且，计算量（FLOPs）和真实的速度并没有直接关系，速度还和显存读取和写入、计算的并发度等很多因素相关。

@CK11111
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CK11111 commented May 16, 2021

真的非常感谢

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@yun-liu @CK11111