public async void Init(CoreDispatcher coreDispatcher, CaptureElement element, Canvas faceCanvas)
{
_dispatcher = coreDispatcher;
_captureElement = element;
_faceCanvas = faceCanvas;
_faceHelper = new FaceHelper(
SettingsHelper.ReadSettings(SettingsHelper.FaceApiSubscriptionKey),
SettingsHelper.ReadSettings(SettingsHelper.FaceApiRoot));
await _faceHelper.InitFaceGroup(SettingsHelper.ReadSettings(SettingsHelper.FaceApiPersonGroup));
}