1. Group 4 Alix Krahn Denis Lachance Adam Thomson
Multi-touch Table
Group 4
Alix Krahn
Denis Lachance
Adam Thomson
Introduce group members and any parts of project each person has led
Adam – physical set-up done and a bit of hardware
Alix – vhdl and physical set-up
Denis – software drivers and image processing (camera)

2. What does it do?
Multi-touch interface to control software and applications
Intuitive, natural gestures and natural interface to use computer
Useful for collaboration and learning, particularly with children and people who are disabled

3. How does it do it?

4. Infrared Touch Event

5. How does it do it?

6. Picture Captured by USB Camera
NEED PIC HERE

7. How does it do it?

8. How does it do it?

9. Post Digital Signal Processing
Pic of DSP

10. How does it do it?

11. Data sent to computer by ethernet
Ten touch points
X location
Y location
Size
Why?

12. What’s on the computer?
Receives data
Calibrates
Control software

13. Hardware Diagram

14. What’s special? Challenges Unique peripherals Using USB
Digital signal processing
Physical table
Delay/interfaces
Challenges

15. Results and Demo Functional multi-touch table On computer
Drawing application