public Descriptor(Exterma exterma, KeyPoint keyPoint, double[] vector)
{
if (vector.Length != 128)
{
throw new NotImplementedException();
}
this.exterma = exterma;
this.Orientation = keyPoint.Orientation;
this.Magnitude = keyPoint.Magnitude;
this.vector = vector;
this.m_Norm = 0;
this.m_Norm = Math.Sqrt(Descriptor.InnearMultiplication(this, this));
}
public static double CalculateAngle(Descriptor first, Descriptor second)
{
return(Math.Acos(Math.Round(Descriptor.InnearMultiplication(first, second) / (first.Norm * second.Norm), 15)));
}