private Cylinder[] CreateCylinders(Minutia minutia)
{
Cylinder3D value = new Cylinder3D();
Cylinder3D mask = new Cylinder3D();
for (int i = 1; i <= BaseCuboid; i++)
{
for (int j = 1; j <= BaseCuboid; j++)
{
if (IsValidPoint(GetPoint(i, j, minutia), minutia))
{
for (int k = 1; k <= HeightCuboid; k++)
{
mask.SetValue(i, j, k, 1);
value.SetValue(i, j, k, StepFunction(Sum(
GetPoint(i, j, minutia),
AngleHeight(k),
GetNeighborhood(GetPoint(i, j, minutia), minutia),
minutia
)
));
}
}
}
}
return(new[]
{
new Cylinder(value.Cylinder, minutia.Angle, Math.Sqrt(CylinderHelper.GetOneBitsCount(value.Cylinder))),
new Cylinder(mask.Cylinder, minutia.Angle, Math.Sqrt(CylinderHelper.GetOneBitsCount(mask.Cylinder)))
});
}
public Template CreateTemplate()
{
List <Cylinder> listCylinders = new List <Cylinder>();
foreach (var middleMinutia in _minutiaeList)
{
int count = GetCountMinutia(middleMinutia);
if (count >= MinNumberMinutiae)
{
Cylinder[] cylinders = CreateCylinders(middleMinutia);
listCylinders.Add(cylinders[0]);
listCylinders.Add(cylinders[1]);
}
}
uint maxCount = GetMaxCount(listCylinders);
for (int i = 1; i < listCylinders.Count; i += 2)
{
if (CylinderHelper.GetOneBitsCount(listCylinders[i].Values) >= 0.75 * maxCount)
{
continue;
}
listCylinders.RemoveAt(i--);
listCylinders.RemoveAt(i--);
}
return(new Template(listCylinders.ToArray()));
}
private uint GetMaxCount(List <Cylinder> listCylinders)
{
uint maxCount = 0;
for (int i = 1; i < listCylinders.Count; i += 2)
{
uint count = CylinderHelper.GetOneBitsCount(listCylinders[i].Values);
maxCount = count > maxCount ? count : maxCount;
}
return(maxCount);
}
