HOG
Jean K
jean.kossaifi at gmail.com
Mon Aug 19 14:03:50 EDT 2013
Hello,
I am new to the scikit-image, and interested in using HOG.
However, the one which is implemented doesn't seem to give as good results
as expected.
As a possible explanation I think mainly of 2 reasons:
1) the way of computing the gradients ( if I'm not mistaking, you use a
[-1, 1] filter when they use a centered one [-1, 0, 1].
2) They use tri-linear interpolation when here the you seem to use hard
binning.
Does this make sense or am I missing something?
Also, I tried to write another version, trying to stick as much as possible
to Dalal&Triggs version, although I don't really know how to assess the
results it produces. Would that be of interest?
Cheers,
Jean
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