wkentaro / pytorch-fcn

PyTorch Implementation of Fully Convolutional Networks. (Training code to reproduce the original result is available.)

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Hi,I have a problem?

BCWang93 opened this issue · comments

commented

When I test the trained model use the test data or the train data ,the output is only zero.Anyone can help me to solve this?Thanks!
the output like this:
[[0 0 0 ..., 0 0 0]
[0 0 0 ..., 0 0 0]
[0 0 0 ..., 0 0 0]
...,
[0 0 0 ..., 0 0 0]
[0 0 0 ..., 0 0 0]
[0 0 0 ..., 0 0 0]]

commented

Is this the result with VOC dataset?
On Thu, May 2, 2019 at 12:18 Bcw93 @.***> wrote: When I test the trained model use the test data or the train data ,the output is only zero.Anyone can help me to solve this?Thanks! the output like this: [[0 0 0 ..., 0 0 0] [0 0 0 ..., 0 0 0] [0 0 0 ..., 0 0 0] ..., [0 0 0 ..., 0 0 0] [0 0 0 ..., 0 0 0] [0 0 0 ..., 0 0 0]] — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#117>, or mute the thread https://github.com/notifications/unsubscribe-auth/ABA4LE2MJS2ZVDHQCOW5TXTPTLEY5ANCNFSM4HJ5NTXQ .
-- Kentaro Wada / 和田 健太郎 https://wkentaro.com http://wkentaro.com

yes,I use the voc2012 dataset,and I don't know why I has this problem?

commented

Is this the result with VOC dataset?
On Thu, May 2, 2019 at 12:18 Bcw93 @.***> wrote: When I test the trained model use the test data or the train data ,the output is only zero.Anyone can help me to solve this?Thanks! the output like this: [[0 0 0 ..., 0 0 0] [0 0 0 ..., 0 0 0] [0 0 0 ..., 0 0 0] ..., [0 0 0 ..., 0 0 0] [0 0 0 ..., 0 0 0] [0 0 0 ..., 0 0 0]] — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#117>, or mute the thread https://github.com/notifications/unsubscribe-auth/ABA4LE2MJS2ZVDHQCOW5TXTPTLEY5ANCNFSM4HJ5NTXQ .
-- Kentaro Wada / 和田 健太郎 https://wkentaro.com http://wkentaro.com

Btw,I trained the FCN32 network.

Hmm, maybe because of the version of pytorch. The code in this repo is written with pytorch 0.2.0: https://github.com/wkentaro/pytorch-fcn#requirements
Maybe 1.0.0 doesn't work without changes.

commented

Hmm, maybe because of the version of pytorch. The code in this repo is written with pytorch 0.2.0: https://github.com/wkentaro/pytorch-fcn#requirements
Maybe 1.0.0 doesn't work without changes.

Hi,I have another question!why the loss is so big?

It is big if you don't average with the number of pixels.

loss = cross_entropy2d(score, target,
size_average=self.size_average)