public async void GetTestFace()
        {
            TestFace tf = new TestFace();

            string personImageDir = @"C:\Users\v-altsai\Pictures\Original";

            string[] ImagePathArray = Directory.GetFiles(personImageDir, "*.jpg");

            this.IdentifyState = "Analysis your face...";

            loading_animation.Visibility = Visibility.Visible;

            Console.WriteLine("Call Face API");

            string s = await tf.Testpicture(ImagePathArray[0]);

            JSONHelper helper = new JSONHelper();

            SendMessageToCloud sc = new SendMessageToCloud();

            People p = new People();

            p = helper.ConvertJSonToObject <People>(s.ToString());

            identify_name             = p.Name;
            identify_Gender           = p.Gender;
            identify_Age              = p.Age;
            identify_Emotion          = p.Emotion;
            identify_EmotionScoreList = p.Emotionlistscore;

            foreach (KeyValuePair <string, float> row in identify_EmotionScoreList)
            {
                Console.WriteLine("Key: " + row.Key + " Value: " + row.Value);
            }

            if (p.Name == "none")
            {
                this.IdentifyState = "You aren't permitted to access!";
            }
            else
            {
                sc.sendWindTurbineMessageToCloudAsync(identify_name, identify_Age, identify_Gender, identify_Emotion, identify_EmotionScoreList, deviceConnectionString);
                this.IdentifyState = "Hi " + p.Name + ",\nYou are permitted to access!";
            }
            this.PersonName = "Name: " + p.Name + "\nGender: " + p.Gender + "\nAge: " + p.Age + "\nEmotion: " + p.Emotion;

            viewmode = true;

            if (viewmode)
            {
                BackGround_Screen.Source = bg_pool;

                badge_Screen.Source = badge[0];

                Load_FigureImage();

                loading_animation.Visibility = Visibility.Collapsed;

                Figure_Screen.Visibility = Visibility.Visible;

                BackGround_Screen.Visibility = Visibility.Visible;

                badge_Screen.Visibility = Visibility.Visible;

                viewmode = false;

                Delete dd = new Delete();

                dd.DeletleImage(personImageDir);
            }
        }
        private async void Reader_FrameArrived(object sender, BodyFrameArrivedEventArgs e)
        {
            bool dataReceived = false;

            using (BodyFrame bodyFrame = e.FrameReference.AcquireFrame())
            {
                if (bodyFrame != null)
                {
                    bodyFrame.GetAndRefreshBodyData(this.bodies);
                    dataReceived = true;
                }
            }

            // if detect body then capture the face
            if (dataReceived)
            {
                foreach (Body body in bodies)
                {
                    if (!body.IsTracked)
                    {
                        continue;
                    }

                    //Console.Write("Check Body ");
                    Joint userJoint_Head = body.Joints[JointType.Head];

                    cameraSpacePoints[0] = userJoint_Head.Position;

                    List.Add(cameraSpacePoints[0].Z);

                    if (_detectedBackButton == true && idDictionary.ContainsKey(body.TrackingId) == false)
                    {
                        try
                        {
                            Console.WriteLine("Detect more people add to idlist");
                            idDictionary.Add(body.TrackingId, false);

                            badge_Screen.Visibility      = Visibility.Collapsed;
                            BackGround_Screen.Visibility = Visibility.Collapsed;
                            Figure_Screen.Visibility     = Visibility.Collapsed;
                            _detectedBackButton          = false;
                            identify_name = null;

                            System.IO.File.Delete(@"C:\Users\v-altsai\Pictures\allfix.jpg");
                        }
                        catch (Exception) {
                        }
                    }


                    SendMessageToCloud sc = new SendMessageToCloud();


                    if (List.Count >= 30 && _detectedBackButton == false && identify_name != null && idDictionary.ContainsKey(body.TrackingId) != false && idDictionary[body.TrackingId] == true)
                    {
                        try
                        {
                            sc.sendWindTurbineMessageToCloudAsync(identify_name, identify_Age, identify_Gender, identify_Emotion, identify_EmotionScoreList, deviceConnectionString);

                            identify_name    = null;
                            identify_Age     = null;
                            identify_Gender  = null;
                            identify_Emotion = null;

                            List.Clear();
                        }
                        catch (Exception)
                        {
                        }
                    }


                    while (List.Count >= 30 && _detectedBackButton == false && idDictionary.ContainsKey(body.TrackingId) != false && idDictionary[body.TrackingId] == false && identify_name == null)
                    {
                        try
                        {
                            Console.WriteLine("Check Body Z : {0}", cameraSpacePoints[0].Z);


                            if (List[29] < 0.9 && idDictionary[body.TrackingId] == false)
                            {
                                this.IdentifyState = "Image Capturing...";

                                System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch(); //引用stopwatch物件

                                sw.Reset();                                                           //碼表歸零

                                sw.Start();                                                           //碼表開始計時

                                count_timer = new DispatcherTimer();

                                count_timer.Interval = new TimeSpan(0, 0, 0, 1, 0);

                                count_timer.Tick += CountTimer_Tick;

                                count_timer.Start();

                                idDictionary[body.TrackingId] = true;
                            }
                            else if (List[29] > 0.9 && idDictionary[body.TrackingId] == false)
                            {
                                this.IdentifyState = "Get closer... " + Convert.ToString(cameraSpacePoints[0].Z);
                            }


                            List.Clear();
                            //BackGround_Screen.Visibility = Visibility.Collapsed;
                        }
                        catch (Exception)
                        {
                        }
                    }
                }
            }
        }