public RecognizedEventArgs(RecognitionItem item)
{
Item = item;
}
/// <summary>
/// Asynchronously process a queue item
/// </summary>
public async Task <Person> ProcessRecognitionItem(RecognitionItem item)
{
Task <EmotionScores> emotionTask = RecognizeEmotions(item.ImageUrl, item.Face.FaceRectangle);
#region Process of person
Person person = item.Person;
// if the person isn't recognized
if (item.Person == null)
{
// Makes recognition to be sure the person isn't recognized
var recognitionResults = await RecognizePersonsAsync(new[] { item.Face }, item.ImageUrl);
if (recognitionResults.Any()) // be sure there is results
{
person = recognitionResults.First().Person;
// If after that person is still not recognized, we create it
// and add a new visit
if (person == null)
{
person = await CreatePerson(item.Face);
_unit.VisitsRepository.AddOrUpdateVisit(person, item.DateOfRecognition);
}
}
}
#endregion
if (person != null)
{
#region Process of profilePictures
ProfilePicture picture = item.ProfilePicture;
// Creates a profile picture for new person
if (item.ProfilePicture == null)
{
picture = _unit.ProfilePicturesRepository
.CreateProfilePicture(person.PersonApiId, item.ImageUrl, item.Face, item.Confidence);
person.Visits.Last().ProfilePictures.Add(picture);
}
// Adds picture to oxford, update information and clean temporary folder
// If an erorr occured during addind face for a new person, stops process and rollback
if (!await AddFaceToPersonInOxford(person, picture, item.Face, item.ImageUrl))
{
return(null);
}
picture.EmotionScores = await emotionTask;
// Clean temporary image file
if (item.ImageCounter == 0)
{
File.Delete(MapPath(item.ImageUrl));
}
#endregion
// trains the person group
await TrainPersonGroupAsync();
// Creates person is it's new
if (person.Id == 0)
{
_unit.PersonRepository.Insert(person);
}
await _unit.SaveAsync();
}
return(person);
}
private void OnNewRecognition(RecognitionItem newItem)
{
Model.RecognitionItems.Add(newItem);
}
