1. Introduction - Wavelength 2. IR Interface Projects - Microsoft Research, Surface - Perceptive Pixels - Wii Remote Projects - Microsoft Research, SideSight 3. Rapid Prototyping - Multi-touch Table Prototyping - Infrared Camera - Infrared Pen Prototyping 4. Work-in-progress

1. 적외선 인터페이스 특강
The Special Lecture on Infrared Interface andRapid Prototyping
Dongchul Kim
Media System Lab., Yonsei University
http://msl.yonsei.ac.kr

2.  Introduction
- Wavelength
 IR Interface Projects
- Microsoft Research, Surface
- Perceptive Pixels
- Wii Remote Projects
- Microsoft Research, SideSight
 Rapid Prototyping
- Multi-touch Table Prototyping
- Infrared Camera
- Infrared Pen Prototyping
 Work-in-progress
Contents

3. Wavelength
3

4. IR Interface Projects
4
Microsoft Surface
Andrew Wilson
Perceptive Pixels
Jefferson Han
Wii Remote Projects
Johnny Chung Lee
SideSight
Microsoft Research

5. Introduction
 MS Surface
- Andrew Wilson, Microsoft Research
 Perceptive Pixels
- Jefferson Han, NYU
- CEO Perceptive Pixels
- FTIR Multitouch
 Wii Remote Projects
- Johnny Chung Lee, CMU
- Nintendo Wii controller
- YouTube, http://www.youtube.com/user/jcl5m
- Wii Mote Projects, http://wiimoteproject.com
 SideSight
- Microsoft Research
Infrared Interface Projects
5

6. Microsoft Surface
Andrew Wilson
6
적외선 빛이 멀어질수록 빛이 약해지는 특성을 이용
약 1,000만원 가량에 판매 중, 호텔, 카페, 개발회사 등에서 구입
장비구성 Computer x 1, Infrared Emitter x 1, Infrared Camera x 4, Projector x 1

7. Perceptive Pixels
Jefferson Han
7
FTIR
Frustrated Total Internal Reflection
빛을 쏘았을 때 매질이 다른 곳에서 전반사장애(FTIR)이 일어나는 현상을 이용
저렴한 가격으로 구현이 가능하여 대부분의 멀티터치 테이블에 쓰임
사용화 시 걸림돌, Perceptive Pixels 사가 특허 보유

8. Wii Remote Projects
Johnny Chung Lee
8
닌텐도 Wii 리모트 컨트롤러를 이용, 매우 저가이면서도 훌륭한
인터페이스들을 선보임. 복잡하지 않고 비용을 많이 들이지 않고서도
얼마나 훌륭한 인터페이스들을 만들 수 있는지 보여주고 싶었다는 조니
리의 말.
Low-cost Multi Point Head Tracking for VR
Finger Tracking Foldable Display

9. Microsoft SideSight
9
Microsoft Research
적외선을 쏘고 이를 받아들여 거리를 인식
모바일 폰 양쪽 사이드에 어레이 형태로
부착하여 멀티터치로 이용

10. Rapid
Prototyping
Multi-touch Table Prototyping
Infrared Camera
Infrared Pen Prototyping
@ Media System Lab.
http://msl.yonsei.ac.kr

11. Rapid Prototyping
Multi-touch Table
11
(a) FTIR Multi-touch (b) Basic FTIR Multitouch System Setup
(c) Equipment s (d) Tabletop Box (c) Attached IR Led
멀티터치인터페이스 제작, http://t9t9.com/360

12. Rapid Prototyping
Multi-touch Table
(a) Wavelength of Camera(CMOS, CCD) (b) Band pass Filter (c) Long pass Filter
(d) Disassemble (e) IR Cut Filter Removal (f) Re Assemble
12적외선 웹캠 제작, http://t9t9.com/361

13. Rapid Prototyping
13
Multi-touch Table
Multi-touch Table Prototyping
Visual C++, OpenCV
Blob Detection
- Thresholding
- Labeling
- Noise Filtering
- Calculate Center
Reference
http://www.OpenCV.co.kr
Video 1, Video 2
멀티터치인터페이스 제작, http://t9t9.com/360
영상처리 커뮤니티, http://www.opencv.co.kr

14. Rapid
Prototyping
Multi-touch Table Prototyping
Infrared Camera
Infrared Pen Prototyping

15. Rapid Prototyping
Infrared Camera
(a) Multi-layer optical glass lens (b) IR Camera Image
(c) V-Gear Talk Cam (d) Disassemble (e) IR Cut Filter Removal
15적외선 웹캠 제작, http://t9t9.com/361

16. Rapid Prototyping
16
Infrared Camera
(a) Negative Film (b) Negative Film Filter Shot (c) DIY IR pass Filter
(d) Original Image (e) IR Image : 10000 won (f) IR Image : Hostel
적외선 웹캠 제작, http://t9t9.com/361

17. Rapid
Prototyping
Multi-touch Table Prototyping
Infrared Camera
Infrared Pen Prototyping

18. Rapid Prototyping
Infrared Pen
(a) Pressure IR Pen (b) Pressure IR Pen Details
(c) Monami Ballpen (d) IR LED
18압력방식 적외선 펜 제작, http://t9t9.com/362

19. Work-in-progress

20. Hand Interface
 손을 이용한 인터페이스 연구
 Wearable Computer 환경에서의 인터랙션
 증강현실 환경에서의 인터랙션
20
TouchAir
Vision based Touch Air Interface
Only vision
Fast Hand Tracking
Wearable Computer
Augmented Reality
Natural User Interface
TouchAir
Multi-touch Air Interface
Using Infrared
미디어시스템연구실, http://msl.yonsei.ac.kr

21.  Markerless Tracking
- 마커를 사용자가 정의하여
사용할 수 있음
- User defined marker
Instability Problem Issue in AR
 Pictorial Code
- 기존 알고리즘으로는 Pictorial
Code 트랙킹이 매우 어려움.
 특정기초 연구과제로 연구 진행 중
21
Augmented Reality Marker
미디어시스템연구실, http://msl.yonsei.ac.kr

22. Reference
[1] 미디어시스템연구실, http://msl.yonsei.ac.kr
[2] 대한민국 컴퓨터비전 커뮤니티, http://www.OpenCV.co.kr
[3] 프로슈머 블로그, http://www.T9T9.com
[4] Jefferson Han의 Multi Touch, Feb, 2006, http://www.youtube.com/watch?v=QKh1Rv0PlOQ {{#ev:youtube|QKh1Rv0PlOQ}}
[5] Jefferson Han from Wikipedia.org, http://en.wikipedia.org/wiki/Jeff_Han
[6] 멀티터치 동영상들, http://r-public.tistory.com/tag/Jeff%20han
[7] MS Surface, http://www.youtube.com/watch?v=EYrJ1IkPNLc {{#ev:youtube|EYrJ1IkPNLc}}
[8] MS 윈도우즈 7, 멀티터치 기술 적용, http://www.kbench.com/digital/?no=55673
[9] 멀티터치 기술, http://blog.naver.com/acrofan?Redirect=Log&logNo=50033059327
[10] FTIR(Frustrated Total Internal Reflection), http://www.cs.nyu.edu/~jhan/ftirsense/
[11] FTIR from Wikipedia.org, http://en.wikipedia.org/wiki/Total_internal_reflection#Frustrated_total_internal_reflection
[12] 멀티터치 기본원리, http://itrustme.tistory.com/15
[13] 적외선 웹캠 제작, http://t9t9.com/361
[14] 적외선 펜 제작, http://t9t9.com/362
[15] 멀티터치 테이블 제작, http://t9t9.com/360
[16] 적외선 카메라에 대한 이해,
http://wiki.yonsei.ac.kr/index.php?title=%EC%A0%81%EC%99%B8%EC%84%A0_%EC%B9%B4%EB%A9%94%EB%9D%BC%EC%9D%98_%EC%9D%
B4%ED%95%B4
22

23. Thanks
Computer Vison Cafe, http://www.OpenCV.co.kr
Blog, http://www.T9T9.com