private double Eval(Tico2003Features query, Tico2003Features template, List <MinutiaPair> matchingPair)
{
if (matchingPair == null)
{
return(0);
}
var qCenterMtia = matchingPair[matchingPair.Count - 1].QueryMtia;
var tCenterMtia = matchingPair[matchingPair.Count - 1].TemplateMtia;
// Computing query bounding region
var qPolygon = GetBounds(query);
qPolygon =
(new PolygonMapper(qCenterMtia, tCenterMtia)).Map(qPolygon);
var qBoundingRegion = new FingerprintRegion(qPolygon);
// Computing template bounding region
var tPolygon = GetBounds(template);
var tBoundingRegion = new FingerprintRegion(tPolygon);
// Mapping query minutiae
var mtiaMapper = new MtiaMapper(qCenterMtia, tCenterMtia);
var qMtiae = new List <Minutia>(query.Minutiae.Count);
for (int i = 0; i < query.Minutiae.Count; i++)
{
var mtia = query.Minutiae[i];
qMtiae.Add(mtiaMapper.Map(mtia));
}
int qCount = 0;
for (int i = 0; i < qMtiae.Count; i++)
{
var mtia = qMtiae[i];
if (tBoundingRegion.Contains(mtia))
{
qCount++;
}
}
int tCount = 0;
foreach (var mtia in template.Minutiae)
{
if (qBoundingRegion.Contains(mtia))
{
tCount++;
}
}
double sum = 0;
foreach (var mtiaPair in matchingPair)
{
sum += mtiaPair.MatchingValue;
}
return(qCount >= MtiaCountThr && tCount >= MtiaCountThr ? 1.0 * sum * sum / (qCount * tCount) : 0);
}
private double Eval(Qi2005Features query, Qi2005Features template, List <MinutiaPair> matchingPair, double[,] simArr)
{
var qIndex = new Dictionary <Minutia, int>(query.Minutiae.Count);
for (int i = 0; i < query.Minutiae.Count; i++)
{
qIndex.Add(query.Minutiae[i], i);
}
var tIndex = new Dictionary <Minutia, int>(template.Minutiae.Count);
for (int i = 0; i < template.Minutiae.Count; i++)
{
tIndex.Add(template.Minutiae[i], i);
}
var qCenterMtia = matchingPair[matchingPair.Count - 1].QueryMtia;
var tCenterMtia = matchingPair[matchingPair.Count - 1].TemplateMtia;
// Computing query bounding region
var qPolygon = GetBounds(query);
qPolygon =
(new PolygonMapper(qCenterMtia, tCenterMtia)).Map(qPolygon);
var qBoundingRegion = new FingerprintRegion(qPolygon);
// Computing template bounding region
var tPolygon = GetBounds(template);
var tBoundingRegion = new FingerprintRegion(tPolygon);
// Mapping query minutiae
var mtiaMapper = new MtiaMapper(qCenterMtia, tCenterMtia);
var qMtiae = new List <Minutia>(query.Minutiae.Count);
for (int i = 0; i < query.Minutiae.Count; i++)
{
var mtia = query.Minutiae[i];
qMtiae.Add(mtiaMapper.Map(mtia));
}
int qCount = 0;
for (int i = 0; i < qMtiae.Count; i++)
{
var mtia = qMtiae[i];
if (tBoundingRegion.Contains(mtia))
{
qCount++;
}
}
int tCount = 0;
foreach (var mtia in template.Minutiae)
{
if (qBoundingRegion.Contains(mtia))
{
tCount++;
}
}
double sum = 0;
foreach (var mtiaPair in matchingPair)
{
int i = qIndex[mtiaPair.QueryMtia];
int j = tIndex[mtiaPair.TemplateMtia];
sum += simArr[i, j];
}
return(qCount >= 6 && tCount >= 6 ? 1.0 * sum / Math.Max(qCount, tCount) : 0);
}
