Hand Gestures working unstable

[Fadi_H_]

Hello Guys,

I am creating a program in Java for my Bachelor Thesis, 

Scenario: Its an Image viewer controller by Gestures (Swipe right and left for next and prev.)

The images are saved in an array m.

Problem: When i use swipe gesture once, it repeates the action 2-4 times, so it skips some images or sometimes it doesnt work then i works suddently. 

Its the same situation when i add println("swiping left"), then i shows "swiping left" repeated in the console. 

What should i change to make the Program work more stable?? GestureStateType is still null the whole time!

here is my code 

public class GestureViewer extends JFrame{
	static ImageIcon m[];
	static int i;
	static JLabel l;
	static JToggleButton like;
	static JToggleButton dislike;
		
public GestureViewer(){
	    setLayout(new BorderLayout( ));
	    setSize(1000,700);
	    setVisible(true);
	    JPanel p=new JPanel(new FlowLayout());
	    add(p,BorderLayout.SOUTH);
	    like = new JToggleButton("like");
	    dislike = new JToggleButton("dislike");
	    p.add(like);
	    p.add(dislike);
	    add(p,BorderLayout.SOUTH);
	  
	    //images array
	    m = new ImageIcon[4];
	    //images source in gallery
	    m[0] = new ImageIcon("C:/Users/PC/Desktop/images/img1.png");
	    m[1] = new ImageIcon("C:/Users/PC/Desktop/images/img2.jpg");
	    m[2] = new ImageIcon("C:/Users/PC/Desktop/images/img3.jpg");
	    m[3] = new ImageIcon("C:/Users/PC/Desktop/images/img4.jpg");
	    l = new JLabel();
	    l.setBounds(400, 0, getWidth(), getHeight());
	    add(l,BorderLayout.CENTER);
	    l.setIcon(m[0]);
		}
	
		
	public static <myImage> void main(String s[]) {
	
	GestureViewer xx= new GestureViewer();
	System.out.println("Starting hand tracker.");
		
	// create the sense manager and enable the streams,
	// get the hand module, and initialize the pipeline
	PXCMSenseManager senseManager =PXCMSenseManager.CreateInstance();
	senseManager.EnableStream(PXCMCapture.StreamType.STREAM_TYPE_COLOR,640,480,60);
	senseManager.EnableHand(null);
	PXCMHandModule handModule = senseManager.QueryHand();
	senseManager.Init();
	
	// configure the hand module, we want all gestures
	// we also want a PXCHandData instance which we'll
	// later query for gesture data. We also enable
	// alerts if a hand is detected or lost
	PXCMHandData handData = handModule.CreateOutput();
	PXCMHandData.GestureData gestureData = new PXCMHandData.GestureData();
	PXCMHandConfiguration handConfig = handModule.CreateActiveConfiguration();
	PXCMSession session= PXCMSession.CreateInstance();
	PXCMPowerState ps=session.CreatePowerManager();
	ps.SetState(PXCMPowerState.State.PERFORMANCE);

	
	handConfig.DisableAllGestures();
	handConfig.EnableGesture("thumb_up");
	handConfig.EnableGesture("thumb_down");
	handConfig.EnableGesture("swipe_right");
	handConfig.EnableGesture("swipe_left");
	
	handConfig.EnableAllAlerts();
	handConfig.EnableAlert(PXCMHandData.AlertType.ALERT_HAND_DETECTED);
        handConfig.EnableAlert(PXCMHandData.AlertType.ALERT_HAND_NOT_DETECTED);
        handConfig.ApplyChanges();
	PXCMCaptureManager captureMgr = senseManager.QueryCaptureManager();
	captureMgr.FilterByDeviceInfo("RealSense",null, 0);
	pxcmStatus sts = senseManager.EnableHand(null);
	sts = senseManager.Init();			 
	handConfig.Update();
		if (sts.compareTo(pxcmStatus.PXCM_STATUS_NO_ERROR) >= 0) {
			senseManager.Init();  //initialize if no error
			//int numOfHands = handData.QueryNumberOfHands();
				
			//GestureStateType state = GestureStateType.GESTURE_STATE_START;
			
			for (int nframes = 0; nframes < 3000; nframes++) {
			sts = senseManager.AcquireFrame(true);
			if (sts.compareTo(pxcmStatus.PXCM_STATUS_NO_ERROR) < 0)
			break;
		
				while (senseManager.AcquireFrame(true).isSuccessful()) {
					
				// Retrieve current hand tracking results
			
				handData = handModule.CreateOutput();
				handData.Update();
				PXCMHandData.IHand hand = new PXCMHandData.IHand();
				sts = handData.QueryHandData(PXCMHandData.AccessOrderType.ACCESS_ORDER_BY_TIME,0,hand);
				
				
				//getting the 3 gestures
				if (handData.IsGestureFired("thumb_up", gestureData)) {
					System.out.printf("thumb up!!\n");
						like.setSelected(true);
						dislike.setSelected(false);
						
													
							        					
				}
				if (handData.IsGestureFired("swipe_left", gestureData)){
					System.out.println("swipe left!!");
					if(i==0)
				    {
				     JOptionPane.showMessageDialog(null,"This is first Image");
				    }
						else{
						i=i-1;
					    l.setIcon(m);
						} 
				}
				
				if (handData.IsGestureFired("swipe_right", gestureData)){
					System.out.println("swipe right!!");
					if(i==m.length-1)
				    {
				     JOptionPane.showMessageDialog(null,"This is Last Image");
				    
				    }
					    else {
				    	i=i+1;
				        l.setIcon(m);
					    }	
				}
				
								
				if (handData.IsGestureFired("thumb_down", gestureData)&&(gestureData.timeStamp > 200 * 365 *24 *60*60)){
						System.out.println("thumb down!!");	
						dislike.setSelected(true);
						like.setSelected(false);
						
				}
				senseManager.ReleaseFrame();
				}	
			}
			
			handData.close();
			senseManager.close();
			handConfig.close();
		
		}
	}


	
}

[samontab]

You could try using a thread for image acquisition, and another for processing.