Write padding aware im2col? about caffe HOT 5 CLOSED

Just legacy reason, I guess... I was translating codes quickly from decaf to caffe and did not worry too much about memory consumption back then. Yeah, it would be good to have a padding aware im2col function to save a (rather unnecessary) copy of the data.

from caffe.

It would be even better to have a more memory efficient convolutional layer
that won't require im2col, but that it is going to be harder.

Sergio

2014-02-03 Yangqing Jia [email protected]:

Just legacy reason, I guess... I was translating codes quickly from decaf
to caffe and did not worry too much about memory consumption back then.
Yeah, it would be good to have a padding aware im2col function to save a
(rather unnecessary) copy of the data.

Reply to this email directly or view it on GitHubhttps://github.com//issues/36#issuecomment-34001933
.

from caffe.

I assume Forrest is working along that direction (not sure).

Yangqing

On Mon, Feb 3, 2014 at 1:40 PM, Sergio Guadarrama
[email protected]:

It would be even better to have a more memory efficient convolutional layer
that won't require im2col, but that it is going to be harder.

Sergio

2014-02-03 Yangqing Jia [email protected]:

Just legacy reason, I guess... I was translating codes quickly from decaf
to caffe and did not worry too much about memory consumption back then.
Yeah, it would be good to have a padding aware im2col function to save a
(rather unnecessary) copy of the data.

Reply to this email directly or view it on GitHub<
https://github.com/BVLC/caffe/issues/36#issuecomment-34001933>
.

Reply to this email directly or view it on GitHubhttps://github.com//issues/36#issuecomment-34003395
.

from caffe.

I was talking with Forrest, and he plans to work on that in a week or two.

I found this examples about convolutions
http://www.evl.uic.edu/sjames/cs525/final.html

from caffe.

@Yangqing how to convert the 2 dimension convolution to 3 dimension convolution in the im2col.cpp and conv_layer.cpp files? Thinks

from caffe.