add script to create the optical-flow data about caffe

[yjxiong]

We have the tools for flow extraction. Please go through the README for the
link to it.

On Wednesday, January 13, 2016, jianminsun [email protected] wrote:

Since the dataset is very large, I am having a hard time to download it
Would you like to add the script for converting avi files to optical-flow
frames?

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#30.

Best regards,

Yuanjun

[jianminsun]

Thanks. I found the dense_flow.
Usage:
./denseFlow_gpu -f test.avi -x tmp/flow_x -y tmp/flow_x -i tmp/image -b 20 -t 1 -d 0 -s 1
Are these parameters exactly same as what you were using to create the dataset? I am trying to reproduce your paper's result.

[wanglimin]

@jianminsun ,

Yes, it is exactly the same as ours.

Limin

[jianminsun]

Thank you very much.