public void Update(FastBitmap img, Point eyeLocation, float timeElapsed)
{
lock ( templateMutex )
{
if (IsReady)
{
Point searchAreaStartPoint = GetSearchAreaStartPoint(eyeLocation);
try
{
img.GetIntensityMap(searchAreaStartPoint.X, searchAreaStartPoint.Y,
initialSearchintensityMapWidth, initialSearchintensityMapHeight, initialSearchIntensityMap);
Point tempPoint;
float[] refinedSearchNccScores;
SetInitialNccSearchTemplates(eyeLocation);
refinedSearchNccScores = openEyeTemplate.GetTopNccScores(initialSearchTemplates, refinedSearchIndices);
inputOpenEyeNcc = float.NegativeInfinity;
for (int i = 0; i < refinedSearchIndices.Length; ++i)
{
FastBitmap.NccTemplate tempTemplate = initialSearchTemplates[refinedSearchIndices[i]];
float tempNcc = img.GetNccScore(openEyeTemplate, new Rectangle(tempTemplate.X - (stepAmount - 1),
tempTemplate.Y - (stepAmount - 1), (2 * stepAmount) - 1, (2 * stepAmount) - 1), out tempPoint);
if (tempNcc > inputOpenEyeNcc)
{
inputOpenEyeNcc = tempNcc;
eyeOpenLoc = tempPoint;
}
}
refinedSearchNccScores = closedEyeTemplate.GetTopNccScores(initialSearchTemplates, refinedSearchIndices);
inputClosedEyeNcc = float.NegativeInfinity;
for (int i = 0; i < refinedSearchIndices.Length; ++i)
{
FastBitmap.NccTemplate tempTemplate = initialSearchTemplates[refinedSearchIndices[i]];
float tempNcc = img.GetNccScore(closedEyeTemplate, new Rectangle(tempTemplate.X - (stepAmount - 1),
tempTemplate.Y - (stepAmount - 1), (2 * stepAmount) - 1, (2 * stepAmount) - 1), out tempPoint);
if (tempNcc > inputClosedEyeNcc)
{
inputClosedEyeNcc = tempNcc;
eyeClosedLoc = tempPoint;
}
}
}
catch (ArgumentOutOfRangeException)
{
// Set as eye open since this performs no action, set open eye location as estimated location
inputOpenEyeNcc = 1;
eyeOpenLoc = eyeLocation;
inputClosedEyeNcc = 0;
}
}
else
{
if (!xDistanceBetweenEyesSet)
{
throw new InvalidOperationException("Must call SetXDistanceBetweenEyes before calling Update");
}
try
{
initializationTemplates[nextInitializationImageIndex] = img.GetNccTemplate(GetTemplateRectange(eyeLocation));
}
catch (ArgumentOutOfRangeException)
{
return;
}
if (closeEyeMessageTimer > 0)
{
closeEyeMessageTimer -= timeElapsed;
inputOpenEyeNcc = img.GetNccScore(openEyeTemplate, GetFindingTemplateSearchArea(eyeLocation), 1, out eyeOpenLoc);
}
else
{
if (openEyeTemplate == null)
{
for (int i = 0; i < nextInitializationImageIndex; ++i)
{
initializationNccScores[i, nextInitializationImageIndex]
= initializationNccScores[nextInitializationImageIndex, i]
= initializationTemplates[i].GetNcc(initializationTemplates[nextInitializationImageIndex]);
}
}
else
{
inputOpenEyeNcc = img.GetNccScore(openEyeTemplate, GetFindingTemplateSearchArea(eyeLocation), 1, out eyeOpenLoc);
initializationNccScores[nextInitializationImageIndex, 0]
= openEyeTemplate.GetNcc(initializationTemplates[nextInitializationImageIndex]);
}
initializationNccScores[nextInitializationImageIndex, nextInitializationImageIndex] = 1;
nextInitializationImageIndex++;
if (InitializationImageCount == nextInitializationImageIndex)
{
if (openEyeTemplate == null)
{
int bestIndex = GetBestRepresentativeTemplateIndex();
openEyeTemplate = initializationTemplates[bestIndex];
cmsTrackingSuiteAdapter.SendMessage(CloseEyesMessage);
closeEyeMessageTimer = CloseEyeMessageStartTime;
if (CMSLogger.CanCreateLogEvent(false, true, false, "BlinkLinkLogTemplatesEvent"))
{
BlinkLinkLogTemplatesEvent logEvent = new BlinkLinkLogTemplatesEvent();
logEvent.IsOpenTemplates = true;
logEvent.SelectedTemplate = bestIndex;
logEvent.SetTemplates(initializationTemplates);
CMSLogger.SendLogEvent(logEvent);
}
}
else
{
float nccScore;
int bestIndex = GetFurtherestFromEyeOpen(out nccScore);
FastBitmap.NccTemplate representativeTemplate = initializationTemplates[bestIndex];
if (nccScore <= ClassDifferenceThreshold)
{
closedEyeTemplate = representativeTemplate;
if (CMSLogger.CanCreateLogEvent(false, true, false, "BlinkLinkLogTemplatesEvent"))
{
BlinkLinkLogTemplatesEvent logEvent = new BlinkLinkLogTemplatesEvent();
logEvent.IsOpenTemplates = false;
logEvent.SelectedTemplate = bestIndex;
logEvent.SetTemplates(initializationTemplates);
CMSLogger.SendLogEvent(logEvent);
}
}
}
nextInitializationImageIndex = 0;
}
}
}
}
}
