public static MatchError ComputeMouthDentError(
DatabaseFin unknownFin,
DatabaseFin databaseFin,
MatchOptions options)
{
if (unknownFin == null)
{
throw new ArgumentNullException(nameof(unknownFin));
}
if (databaseFin == null)
{
throw new ArgumentNullException(nameof(databaseFin));
}
var maxError = new MatchError {
Error = 1
};
if (databaseFin.FinOutline?.FeatureSet?.Features.ContainsKey(Features.FeatureType.HasMouthDent) != true ||
unknownFin.FinOutline?.FeatureSet?.Features.ContainsKey(Features.FeatureType.BrowCurvature) != true)
{
return(maxError);
}
var unknownHasMouthDent = unknownFin.FinOutline?.FeatureSet?.Features[Features.FeatureType.HasMouthDent].Value;
var databaseHasMouthDent = databaseFin.FinOutline?.FeatureSet?.Features[Features.FeatureType.HasMouthDent].Value;
if (unknownHasMouthDent == null || databaseHasMouthDent == null)
{
return(maxError);
}
return(new MatchError
{
Error = Math.Abs(unknownHasMouthDent.Value - databaseHasMouthDent.Value)
});
}
//*******************************************************************
//
// float Match::matchSingleFin(int registrationMethod, int regSegmentsUsed,
// bool categoryToMatch[], bool useFullFinError,
// bool useAbsoluteOffsets)
//
// Attempts to match unknown fin to a single database fin. The
// current fin is mDatabase->getItem(mCurrentFin). The match_method
// parameter determines which of several outline mapping and
// error between match techniques is used.
//
// now modified to match ONLY those database fins with category designation
// indicated in categoryToMatch array
//
// ***055ER
// the new useFullFinError parameter indicates whether or not to use the
// entire outlines in the final calculation of the error measure. When false,
// only the portion of the outlines between the adjusted leadingeEdgeBegin and
// trailingEdgeEnd points is used. When true, the fin mapping is done using
// various subsets of the outlines (and errors derived from same), but the
// final error (measure of mismatch) uses all outline points from each fin.
// This parameter does not affect the original and the trim by 1/10th percent
// matching techniques, which always use the entire outline in error calculations
//
// ***1.3
// New parameter useAbsoluteOffsets, wen true, causes function to step through
// the database absolute offset list so that fins are matched in the actual
// order that they are stored in the database. This is used ONLY when MATCH
// QUEUES are being processed, and it keeps the fin numbers correct even if the
// database is later modified.
//
public float MatchSingleIndividual(List <Category> categoriesToMatch)
{
if (MatchFactors == null || MatchFactors.Count < 1)
{
throw new Exception("Match factors haven't been set yet!");
}
var stopWatch = System.Diagnostics.Stopwatch.StartNew();
int matchIndex = 0;
lock (locker)
{
// If we have any factors missing updateOutlines, but we know what
// the delegate should be, fill them in
if (CurrentFinIndex == 0 && _updateOutlines != null && MatchFactors.Any(mf => mf.MatchFactorType == MatchFactorType.Outline && mf.UpdateOutlines == null))
{
foreach (var matchFactor in MatchFactors.Where(mf => mf.MatchFactorType == MatchFactorType.Outline && mf.UpdateOutlines == null))
{
matchFactor.UpdateOutlines = _updateOutlines;
}
}
// TODO?
//if (CurrentFinIndex >= Database.AllFins.Count)
// return 100.0f;
matchIndex = CurrentFinIndex;
CurrentFinIndex += 1;
}
DatabaseFin thisDBFin = Database.AllFins[matchIndex];
bool tryMatch = categoriesToMatch.Exists(c => c.Name.ToLower() == thisDBFin.DamageCategory.ToLower());
if (tryMatch)
{
// TODO: This isn't done quite right yet
MatchError matchErrorResult = new MatchError();
double errorBetweenFins = 0.0;
List <MatchFactorError> rawError = new List <MatchFactorError>();
int factorIndex = 0;
try
{
foreach (var factor in MatchFactors)
{
var factorResult = factor.FindErrorBetweenIndividuals(UnknownFin, thisDBFin);
if (factor.MatchFactorType == MatchFactorType.Outline)
{
Vector <double> saveRawRatios = null;
if (matchErrorResult.RawRatios != null)
{
saveRawRatios = matchErrorResult.RawRatios;
}
Vector <double> saveRHat = null;
if (matchErrorResult.RHat != null)
{
saveRHat = matchErrorResult.RHat;
}
Vector <double> saveDBRHat = null;
if (matchErrorResult.DBRHat != null)
{
saveDBRHat = matchErrorResult.DBRHat;
}
Vector <double> saveDBRawRatios = null;
if (matchErrorResult.DBRawRatios != null)
{
saveDBRawRatios = matchErrorResult.DBRawRatios;
}
matchErrorResult = factorResult;
if (factorResult.Contour1 != null)
{
UnknownFin.FinOutline.RemappedChainPoints = factorResult.Contour1;
}
if (saveRawRatios != null)
{
matchErrorResult.RawRatios = saveRawRatios;
}
if (saveRHat != null)
{
matchErrorResult.RHat = saveRHat;
}
if (saveDBRawRatios != null)
{
matchErrorResult.DBRawRatios = saveDBRawRatios;
}
if (saveDBRHat != null)
{
matchErrorResult.DBRHat = saveDBRHat;
}
}
else
{
matchErrorResult.RawRatios = factorResult.RawRatios;
matchErrorResult.RHat = factorResult.RHat;
matchErrorResult.DBRawRatios = factorResult.DBRawRatios;
matchErrorResult.DBRHat = factorResult.DBRHat;
}
// We're going to rescale this later -- should probably remove this
// errorBetweenFins += factor.Weight * result.Error;
var matchFactorError = new MatchFactorError
{
FactorIndex = factorIndex,
Error = factorResult.Error,
Weight = factor.Weight
};
rawError.Add(matchFactorError);
lock (locker)
{
RawErrorTracking.Add(matchFactorError);
}
factorIndex += 1;
}
}
catch (Exception ex)
{
Trace.WriteLine(ex);
}
// Now, store the result
Result r = new Result(
matchErrorResult.Contour1, //***005CM
matchErrorResult.Contour2, //***005CM
thisDBFin.ID,
// TODO - This image filename stuff is a little ugly.
(string.IsNullOrEmpty(thisDBFin.OriginalImageFilename)) ? thisDBFin.ImageFilename : thisDBFin.OriginalImageFilename,
thisDBFin.ThumbnailFilenameUri,
matchIndex,
rawError,
errorBetweenFins,
thisDBFin.IDCode,
thisDBFin.Name,
thisDBFin.DamageCategory,
thisDBFin.DateOfSighting,
thisDBFin.LocationCode);
if (matchErrorResult.RHat != null)
{
r.RHat = matchErrorResult.RHat;
}
if (matchErrorResult.RawRatios != null)
{
r.RawRatios = matchErrorResult.RawRatios;
}
if (matchErrorResult.DBRHat != null)
{
r.DBRHat = matchErrorResult.DBRHat;
}
if (matchErrorResult.DBRawRatios != null)
{
r.DBRawRatios = matchErrorResult.DBRawRatios;
}
//***1.1 - set indices of beginning, tip and end points used in mapping
r.SetMappingControlPoints(
matchErrorResult.Contour1ControlPoint1, matchErrorResult.Contour1ControlPoint2, matchErrorResult.Contour1ControlPoint3, // beginning, tip & end of unknown fin
matchErrorResult.Contour2ControlPoint1, matchErrorResult.Contour2ControlPoint2, matchErrorResult.Contour2ControlPoint3); // beginning, tip & end of database fin
stopWatch.Stop();
lock (locker)
{
MatchResults.AddResult(r);
MatchResults.TimeTaken += stopWatch.ElapsedMilliseconds;
}
}
lock (locker)
{
int numberDone = MatchResults.Count;
if (numberDone >= Database.AllFins.Count)
{
if (RawErrorTracking != null && RawErrorTracking.Count > 0)
{
// Now that we're through matching, let's rescale the errors
Dictionary <int, float> scaleFactors = new Dictionary <int, float>();
foreach (var idx in RawErrorTracking.Select(r => r.FactorIndex).Distinct())
{
double minError = RawErrorTracking.Where(r => r.FactorIndex == idx).Min(r => r.Error);
double maxError = RawErrorTracking.Where(r => r.FactorIndex == idx).Max(r => r.Error);
// Force minError to 0 if it's not <= already
if (minError > 0)
{
minError = 0;
}
scaleFactors[idx] = (float)(1 / (maxError - minError));
}
foreach (var result in MatchResults.Results)
{
if (result.RawError != null && result.RawError.Count > 0)
{
double scaledError = 0.0;
foreach (var raw in result.RawError)
{
scaledError += scaleFactors[raw.FactorIndex] * raw.Error * raw.Weight;
}
result.Error = scaledError;
result.Confidence = 1.0f - scaledError;
// For rounding issues so we prevent seeing "-0" in the UI
if (result.Confidence < 0)
{
result.Confidence = 0;
}
}
}
}
return(1.0f);
}
return((float)numberDone / Database.AllFins.Count);
}
}