static bool MatchingShapes(EdgeShape probe, EdgeShape candidate)
{
int lengthDelta = probe.Length - candidate.Length;
if (lengthDelta >= -Parameters.MaxDistanceError && lengthDelta <= Parameters.MaxDistanceError)
{
double complementaryAngleError = DoubleAngle.Complementary(Parameters.MaxAngleError);
double referenceDelta = DoubleAngle.Difference(probe.ReferenceAngle, candidate.ReferenceAngle);
if (referenceDelta <= Parameters.MaxAngleError || referenceDelta >= complementaryAngleError)
{
double neighborDelta = DoubleAngle.Difference(probe.NeighborAngle, candidate.NeighborAngle);
if (neighborDelta <= Parameters.MaxAngleError || neighborDelta >= complementaryAngleError)
{
return(true);
}
}
}
return(false);
}
List <MinutiaPair> MatchPairs(NeighborEdge[] probeStar, NeighborEdge[] candidateStar)
{
double complementaryAngleError = DoubleAngle.Complementary(Parameters.MaxAngleError);
var results = new List <MinutiaPair>();
int start = 0;
int end = 0;
for (int candidateIndex = 0; candidateIndex < candidateStar.Length; ++candidateIndex)
{
var candidateEdge = candidateStar[candidateIndex];
while (start < probeStar.Length && probeStar[start].Length < candidateEdge.Length - Parameters.MaxDistanceError)
{
++start;
}
if (end < start)
{
end = start;
}
while (end < probeStar.Length && probeStar[end].Length <= candidateEdge.Length + Parameters.MaxDistanceError)
{
++end;
}
for (int probeIndex = start; probeIndex < end; ++probeIndex)
{
var probeEdge = probeStar[probeIndex];
double referenceDiff = DoubleAngle.Difference(probeEdge.ReferenceAngle, candidateEdge.ReferenceAngle);
if (referenceDiff <= Parameters.MaxAngleError || referenceDiff >= complementaryAngleError)
{
double neighborDiff = DoubleAngle.Difference(probeEdge.NeighborAngle, candidateEdge.NeighborAngle);
if (neighborDiff <= Parameters.MaxAngleError || neighborDiff >= complementaryAngleError)
{
var pair = Allocate();
pair.Probe = probeEdge.Neighbor;
pair.Candidate = candidateEdge.Neighbor;
pair.Distance = candidateEdge.Length;
results.Add(pair);
}
}
}
}
return(results);
}