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conv3d和conv2d的区别 #28

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kiddnesta opened this issue Jun 20, 2018 · 1 comment

kiddnesta commented Jun 20, 2018

我一开始以为两者区别是灰度图只有一个通道只需要conv2d 如果是彩色RGB需要conv3d
但是仔细看了下conv2d里面也是包含了in_channels的也就是conv2d是可以对彩色RGB进行卷积的。
不知道我这样理解是否正确。
那么conv3d又是什么场合使用？

Owner

MorvanZhou commented Jun 20, 2018

我想是单个filter的卷积维度,
conv1d 在:
[1,2,3,4]
有左右维度上卷积,

conv2d 在:
[[1,2,3],
[2,3,4],
[3,4,5]]
有上下左右的维度上卷积.

以此类推, conv3 在有上下前后左右的维度上卷积.

MorvanZhou closed this as completed

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