1. Virtual Pointing Device Using Stereo Camera The 6th International Conference on Applications and Principles of Information Science Jan. 20-23, 2007, Kuala Lumpur, Malaysia Graduate school of Design & IT, Dongseo University Nam-Seok Choi, Seung-Jae Lee, Byung-Gook Lee Seung-Jae Lee, frog3147@dit.dongseo.ac.kr

2. AGENDA What is Pointing Device? Virtual Point System System Architecture Detection and Recognition Coordinate Mapping Mouse Interaction Future works

3. What is Pointing Device? Message

4. Virtual Point System Ubiquitous concept Using USB Camera Escape from the limit of location by Image Processing

5. System Architecture Hardware part 2 USB Camera Capture frame Beam Projector Software part Image Processing Module Coordinate mapping Module Mouse Interaction Module

6. Image Processing 30 frame per sec Fix camera at 45 degree angle Needed Frame that limit user motion

7. Image Processing Save the first frame image Get real time image data Set change gray scale image Compare first image and real time image Get Difference of image Get Hand’s position

8. Detection and Recognition User movement capture module

9. Detection and Recognition Motion detection

10. Coordinate Mapping

11. P ( x, y ) ! Q ( u ; v )

12. ( 1 ) ( 2 ) ( 3 ) ( 4 ) ( 5 ) ( 6 )

13. Detection and Recognition A method of point detection

14. Mouse Interaction Mouse move event Mouse Left button click event

15. Future works Improve the system to more approach the Ubiquitous system. Free camera angle Remove the Capture frame

16. Thank you!! Have a good time in Malaysia.