Why pad the input?: The 100 pixel input padding guarantees that the network output can be aligned to the input for any input size in the given datasets, for instance PASCAL VOC. The alignment is handled automatically by net specification and the crop layer. It is possible, though less convenient, to calculate the exact offsets necessary and do away with this amount of padding.
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From new fcn.berkeleyvision.org FAQ:Why pad the input?: The 100 pixel input padding guarantees that the network output can be aligned to the input for any input size in the given datasets, for instance PASCAL VOC. The alignment is handled automatically by net specification and the crop layer. It is possible, though less convenient, to calculate the exact offsets necessary and do away with this amount of padding.
Evan Shelhamer
On Sat, Jul 2, 2016 at 2:26 PM, Li Sun <lisu...@gmail.com> wrote:
I am also confuse about this. On the final layer, they crop the result back to the size of data. Why not choose a smaller padding size? Anyone can answer?
On Sunday, June 19, 2016 at 3:02:31 PM UTC+1, Tiferet Gazit wrote:I am confused about the large padding (pad=100) used at the bottom of fully convolutional networks such as these. Why is this padding needed, rather than simply making sure each layer has a padding that is the correct size relative to its kernel? Also, how do I determine the size to give this large padding?Thank you!Tiferet
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