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GPU cascade classifier and cascade format


In the OpenCV documentation I have come across the following statement, about loading cascade with GPU classifier:

"Only the old haar classifier (trained by the haar training application) and NVIDIA’s nvbin are supported for HAAR and only new type of OpenCV XML cascade supported for LBP."

Is this true or the documentation is simply outdated? I would try myself, but I am still waiting for my NVIDIA card so the question I am facing now is whether to tackle this problem until my card arrives.

If the statement is true, is there any simple way to convert a "new" cascade based on Haar features (trained with traincascade) into the old format cascade (trained with Haar training application)

Any other suggestions are much appreciated. Thanks in advance!