Finds all the motion segments and marks them in seg_mask with individual values each (1,2,...). It also returns a sequence of CvConnectedComp structures, one per each motion components. After than the motion direction for every component can be calculated with cvCalcGlobalOrientation using extracted mask of the particular component (using cvCmp)

public static IntPtr cvSegmentMotion(
	IntPtr mhi,
	IntPtr segMask,
	IntPtr storage,
	double timestamp,
	double segThresh
)

Public Shared Function cvSegmentMotion ( _
	mhi As IntPtr, _
	segMask As IntPtr, _
	storage As IntPtr, _
	timestamp As Double, _
	segThresh As Double _
) As IntPtr

public:
static IntPtr cvSegmentMotion(
	IntPtr mhi, 
	IntPtr segMask, 
	IntPtr storage, 
	double timestamp, 
	double segThresh
)