private static MedianFlowTracker LoadTracker()
{
MedianFlowTrackerBoundingBox bb = LoadBoundingBox();
LucasKanadeTracker lkTracker = LoadLucasKanade();
// fb error calculator
MedianFlowTracker.FBError_Calculator fbErrorCalc = Service.FBError;
// ncc calculator
MedianFlowTracker.NCC_Calculator nccCalc = Service.NCC;
// patch size
Size patchSize = new Size(8, 8);
// mad treshold
float madTreshold = 10;
return(new MedianFlowTracker
(
bb,
lkTracker,
fbErrorCalc,
nccCalc,
patchSize,
madTreshold
));
}
/// <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);
}
