Opencv3.1 don't have "PatchGenerator" with OpenTLD(arthurv)

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I want to use OpenTLD arthurv with OpenCV3.1.
But it run in OpenCV2.X. I don't know which version is it.

When I build the code, have error.
TLD.h: error: 'PatchGenerator' in namespace 'cv' does not name a type. cv::PatchGenerator generator; But OpenCV 3.1 don't have the function.

Then I download OpenCV2.4.10, and copy all files in "legacy" to project. Ana add "#include "legacy.hpp"" in TLD.h

But have more error of "EM", I don't know how to continue.
Which head file is about "EM"?

Thanks a lot