/*M///////////////////////////////////////////////////////////////////////////////////////
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//????????????????????????Intel?License?Agreement
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//M*/
#include?“precomp.hpp“

typedef?struct
{
????float?xx;
????float?xy;
????float?yy;
????float?xt;
????float?yt;
}
icvDerProduct;


#define?CONV（?A?B?C）??（（float）（?A?+??（B<<1）??+?C?））
/*F///////////////////////////////////////////////////////////////////////////////////////
//????Name:?icvCalcOpticalFlowLK_8u32fR?（?Lucas?&?Kanade?method?）
//????Purpose:?calculate?Optical?flow?for?2?images?using?Lucas?&?Kanade?algorithm
//????Context:
//????Parameters:
//????????????imgA?????????//?pointer?to?first?frame?ROI
//????????????imgB?????????//?pointer?to?second?frame?ROI
//????????????imgStep??????//?width?of?single?row?of?source?images?in?bytes
//????????????imgSize??????//?size?of?the?source?image?ROI
//????????????winSize??????//?size?of?the?averaging?window?used?for?grouping
//????????????velocityX????//?pointer?to?horizontal?and
//????????????velocityY????//?vertical?components?of?optical?flow?RO