/// <summary>
/// Asynchronously put a recognition item into queue
/// </summary>
public async Task Enqueue(IList <RecognitionItem> recognitionItems)
{
// Write work items
foreach (var recognitionItem in recognitionItems)
{
// Gets recognized person
var person = recognitionItem.Person;
if (person != null)
{
// add or update visit for person
_unit.VisitsRepository.AddOrUpdateVisit(person, recognitionItem.DateOfRecognition);
// Create a new profile picture
ProfilePicture newPicture = _unit.ProfilePicturesRepository.CreateProfilePicture
(person.PersonApiId, recognitionItem.ImageUrl, recognitionItem.Face, recognitionItem.Confidence);
person.Visits.Last().ProfilePictures.Add(newPicture);
// Update person's statistics
person.UpdateAge(recognitionItem.Face.FaceAttributes.Age);
person.UpdateGender(GenderValuesHelper.Parse(recognitionItem.Face.FaceAttributes.Gender));
_unit.PersonRepository.Update(person);
// Updates recognition item
recognitionItem.ProfilePictureId = newPicture.Id;
}
_unit.RecognitionItemsRepository.Insert(recognitionItem);
await _unit.SaveAsync();
}
}
public Entities.Person CreatePerson(Guid personApiId, Face face)
{
// Creates a new person entity
var person = new Entities.Person {
PersonApiId = personApiId
};
person.UpdateAge(face.FaceAttributes.Age);
person.UpdateGender(GenderValuesHelper.Parse(face.FaceAttributes.Gender));
// Creates directory to store person's pictures
Directory.CreateDirectory(MapPath($"{Global.PersonsDatabaseDirectory}{personApiId}"));
return(person);
}
// Converts a recognition item entity to person data transfert object
public static PersonDto ToPersonDto(this RecognitionItem recognitionItem)
{
var lastVisit = recognitionItem.Person?.Visits.LastOrDefault();
var age = recognitionItem.Person != null
? DateHelpers.ConvertDateOfBirthToAge(recognitionItem.Person.DateOfBirth)
: recognitionItem.Face.FaceAttributes.Age;
var gender = recognitionItem.Person?.Gender ??
GenderValuesHelper.Parse(recognitionItem.Face.FaceAttributes.Gender);
return(new PersonDto
{
RecognitionId = recognitionItem.Id,
FirstName = recognitionItem.Person?.FirstName,
IsRecognized = recognitionItem.Person != null,
PersonId = recognitionItem.Person?.PersonApiId ?? default(Guid),
NbPasses = lastVisit?.NbPasses ?? 0,
ReasonOfVisit = lastVisit?.Reason,
Age = (int)age,
Gender = gender,
});
}
public ProfilePicture CreateProfilePicture(Guid personApiId, string imagePath, Face face, double confidence)
{
// generates a new path for picture and create a picture with a face box at this location
string newPath = $"{Global.PersonsDatabaseDirectory}{personApiId}/{Guid.NewGuid()}.jpg";
ImageHelpers.CreateImageWithRectangleFace(MapPath(imagePath), MapPath(newPath), face.FaceRectangle);
// Adds a new profile picture for this person
ProfilePicture newPicture = new ProfilePicture
{
Confidence = confidence,
Gender = GenderValuesHelper.Parse(face.FaceAttributes.Gender),
FaceRectangle = face.FaceRectangle,
Uri = newPath,
Glasses = face.FaceAttributes.Glasses,
Moustache = face.FaceAttributes.FacialHair.Moustache,
Beard = face.FaceAttributes.FacialHair.Beard,
Sideburns = face.FaceAttributes.FacialHair.Sideburns
};
newPicture.Age = face.FaceAttributes.Age;
return(newPicture);
}