public virtual void Validate()
{
if (FaceRectangle == null)
{
throw new ValidationException(ValidationRules.CannotBeNull, "FaceRectangle");
}
if (FaceRectangle != null)
{
FaceRectangle.Validate();
}
if (FaceLandmarks != null)
{
FaceLandmarks.Validate();
}
}
