Overview of the Touch Test Setup.

 
 
 
 
 
 

If you would like to test Ubi before permanently mounting the camera, please select this option. This set up is to be used for projection displays on a wall that is upto 80″ in size.
 
This is not a recommended option for continued usage of Ubi. You may not get the best experience of interaction with this set up, since you will have significant occlusion.
 
The Ubi camera and emitter work together to turn your surface into a touch interface.
 
The Ubi camera is plugged into a PC and the emitter is plugged into a power supply.
 
Setup steps:
 

  • Create an 80” display
  • Mount the Ubi sensor
  • Mount the emitter on the wall






 
 
 

step1
 
 

 
 

1

 

Select your setup

 

When running Ubi in the “Step by Step Calibration” mode, choose “Touch Test Setup” and proceed.

step1

2a

 

Create an 80” display.

 

This setup supports an 80 inch (diagonal) display. The display should be a projection display onto a solid flat wall. There should be no other objects on the display.
 
Note: Ubi cannot be used with pull down projection screens.
 
If your projector is in a fixed position and you cannot move it or shrink your display, please follow these instructions.

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2b

Position the camera.

 


Affix the camera to the small mount provided.

 
Place the camera about 30″ from the display. Make sure that the camera does not move easily.

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2c

 

Connect the camera.

 

Connect the camera to the PC. Use the USB cable provided.
 
If Ubi is having trouble connecting to the camera, please follow these troubleshooting steps.

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2d

Camera preview.

 

The camera preview shows you how much of your display the camera can see. Adjust your display until all of your display can be seen by the camera. If you cannot shrink the display, move the position of the camera. For optimal performance, make sure the display fills up as much of the camera preview as possible.

Once you click the Calibrate button, a dot pattern will quickly flash and if the calibration is successful, you will proceed to mount the emitter.

If calibration fails, it is likely due to the following reasons:

1. There is not enough contrast and the camera cannot see all of the display. In this case, adjust the room lighting or brightness of the projector.

2. The entire display is not within view of the camera.

3. There is too much clutter on or around the display that causes Ubi to detect more than 36 calibration dots.

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2e

 

Paste the emitter

 

The emitter is placed 1-2 inches from the bottom of the display. Make sure the open slit on the emitter is facing up.
 
The emitter drops an infrared curtain in front of the display which, when intercepted with your finger, signals a touch event.
 
The infrared curtain must be parallel to the surface so please make sure your surface is flat and smooth. If you are using a whiteboard, the emitter should be placed directly on the whiteboard and not on the beveled edge.


 
 

2f

 

Affix the markers on the display.

 

Place the two markers provided on the top left and right corners of your display.
 
Note: The Ubi application will direct you to place the markers on the bottom of your display. Please do not follow these instructions if you are placing the emtiter at the bottom of your display.

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2g

Power up the emitter.

 

Connect the emitter to the power supply. The emitter is turned on by the Ubi sensor and will display a faint blue light. When the emitter is off, it will display a red light.
 
Please note that the emitter should be powered down when Ubi is not in use.

2h

Adjust the emitter.

 

Use the markers and cross hairs to determine when the IR curtain is parallel to the surface. Once the emitter is affixed to the wall, adjust the emitter so that some partof the circular cross hair appears on each marker. Once the emitter is in its final position, you should see a cross hair exactly at your fingertip as you touch around the screen.

2i

Remove the markers.

 

One the emitter is in its final position, you can remove the markers from your display surface.

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3

 

Successful Setup.

 

Once the emitter is in its final position, you have completed the setup process. You will be prompted to choose how you would like to calibrate the next time you use Ubi.
 

.

step1

Start Interacting

 

Please note that, you have to be very careful with your posture in this set up. Use one finger to interact.
 
Make sure you interact standing at one side of the display, so that your finger is always visible to the camera.