1. open qt project urct.pro in C:\Users\jhanbin\Desktop\pro\ur3\urct
2. remove table and move ur3 to proper pose. 
3. run urct
4. urct first capture 10 image of different pose, then calibrate camera pose. 
5. after complete calibrate camera pose, move ur3 to proper pose then put back table, put ar code paper on the table.
6. press any key to start calibrate table position.
7. calibrate result is shown in Application Output. e.g. See camera2Base=[0.317385, 0.0392748, 0.693377, 0.0759544, 3.11283, -0.0656081],  plane=[0.0038675, 0.0547638, 0.998492, -0.679514]
8. copy the calibration result to TX1, in URControlCamera constructor (line 413 and 417 in file /home/ubuntu/ur3/urct/urcontrolcamera.hpp)
9. change the drop pose if needed, line 376 in file /home/ubuntu/ur3/urct/urcontrolcamera.hpp