/// <summary>
/// Instatiates a ready-to-go median flow tracker.
/// All of its initial configuration is done here.
/// </summary>
private void InstantiateTracker()
{
// grid bounding box
_gridBb = new MedianFlowTrackerBoundingBox
(
new Size(10, 10),
new SizeF(5, 5)
);
// lucas kanade tracker
_lkTracker = new LucasKanadeTracker(
new Size(11, 11),
2,
new MCvTermCriteria(20, 0.03),
LKFLOW_TYPE.DEFAULT,
LKFLOW_TYPE.CV_LKFLOW_PYR_A_READY | LKFLOW_TYPE.CV_LKFLOW_PYR_B_READY
);
// fb error and ncc calculators
_fbErrorCalc = Service.FBError;
_nccCalc = Service.NCC;
// patch size for calculating NCC
_patchSize = new Size(11, 11);
// MAD treshold
_madTrashold = 10;
// ** instantiate the median flow tracker **
_tracker = new MedianFlowTracker(
_gridBb,
_lkTracker,
_fbErrorCalc,
_nccCalc,
_patchSize,
_madTrashold
);
// initial frame
_initialFrame = new Image <Gray, byte>(Path.Combine(_resourceDir, "violeta_5.jpg"));
// initial bounding box
_initialBB = new BoundingBox(
new PointF(90, 81),
new SizeF(70, 40)
);
// ** initialize the median flow tracker **
_tracker.Initialize(_initialFrame, _initialBB);
}
public MedianFlowTracker(
IMedianFlowTrackerBoundingBox bb,
ILucasKanadeTracker lucasKanade,
FBError_Calculator FBError,
NCC_Calculator NCC,
Size patchSize,
float madTreshold
)
{
_currentBb = bb;
_lucasKanade = lucasKanade;
_FBError = FBError;
_NCC = NCC;
_patchSize = patchSize;
_madTreshold = madTreshold;
_failureEnabled = true;
}
