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1 Information Transfer Techniques for Mobile Devices by Recognizing Users Locations, Orientations and Gestures Koji Yatani 1, Koiti Tamura 1, Masanori Sugimto 1 and Hiromichi Hashizume 2 Abstract Toss-It Toss-It Keywords : 1. PDA(Personal Digital Assistant) PDA ( ) *1 *2 *1 Graduate School of Frontier Sciences, University of Tokyo *2 National Institute of Informatics Toss-It [14], [18] Toss-It Toss-It PDA PDA 1(a) PDA PDA ( 1(b)) PDA 1(c) PDA [18] Toss-It LED [14], [18]

(a) (b) (c) 1 Toss-It : (a)pda PDA (b)pda (c)pda PDA Fig.

(a) from a PDA to another PDA (b) from a PDA to a printer (c) from a

2. 1 Hinckley [4] PDA [2], [10] Peephole Display [15] PDA PDA PDA 2.

2 (a) (b) (c) 1 Toss-It : (a)pda PDA (b)pda (c)pda PDA Fig. 1 Intuitive information transfer techniques with Toss-It. (a) from a PDA to another PDA (b) from a PDA to a printer (c) from a PDA to multiple PDAs Hinckley [4] PDA [2], [10] Peephole Display [15] PDA PDA PDA 2. 2 Rekimoto (pick up) (drop) [9] [12] face-to-face 1(a) [12] 2. 3 XWand [16] DVD XWand on/off XWand / [6] GestureWrist [8] GesturePendant [11]

2 Fig. 2 A circuit board with inertial sensors 3. Toss-It PDA [1], [5] ( ) 2 200[deg/sec] 10[mV/(deg/sec)] Analog Devices ADXL210 300[deg/sec] 0.

3 2 Fig. 2 A circuit board with inertial sensors 3. Toss-It PDA [1], [5] ( ) 2 200[deg/sec] 10[mV/(deg/sec)] Analog Devices ADXL [deg/sec] 0.67[mV/(deg/sec)] ENC- 03J [kHz] H8 H8 AD PDA 4. Toss-It 1(a) 1(a) 3 Toss-It Fig. 3 A typical example of the output data of an accelerometer when a user conducted a toss action with Toss-It ( 0) ( 3 P ) ( 3 N ) 3

4 0 ( starting point 3 ) ( inversion point 3 ) inversion point starting point inversion point 0 ( end point 3 ) end point starting point end point 3 PDA PDA starting point [17] 4. 2 Toss-It (1) PDA (2) 4.1 PDA 3 PDA (c) 1(c) PDA 2 PDA PDA PDA 5. [3] LED LED

LED 3 2 3 [13] ( ) LED 5 900[nm] LED 5. 2 6 LED 0 255 8[bit] LED 3 LED 128 6 ( : : ) Fig.

5 B A C 5 Fig. 5 A stereo camera 4 Fig. 4 LED A marker with infrared LEDs 4 A B C BA CA A LED LED PIC(Peripheral Interface Controller) LED [13] ( ) LED 5 900[nm] LED LED [bit] LED 3 LED ( : : ) Fig. 6 Images where one marker is captured (left: An image from the camera on the left side, right: An image from the camera on the right side) LED LED 2 LED LED 2

6 PDA PDA PDA 2 5 PDA ( ) Tilt Me! An Exploration of Manipulative User Interfaces, In Proceedings of CHI 98, pp , [3] Hightower, J., Location Systems for Ubiquitous Computing, IEEE Computer, Vol. 34, No. 8, [4] Hinckley, K., Pierce, J., Sinclair, M. and Horvitz, E., Sensing Techniques for Mobile Interaction, In Proceedings of UIST2000, pp , [5] Kourogi, M. and Kurata, T., Personal Positioning based on Walking Locomotion Analysis with Self-Contained Sensors and a Wearable Camera, In Proceedings of ISMAR2003, pp , [6] Marrin, T., Possibilities for the Digital Baton as a General-Purpose Gestural Interface, In Proceedings of CHI 97, pp , [7] Nickel, K., and Stiefelhagen, R., Pointing Gesture Recognition Based on 3D-tracking of Face, Hands and Head Orientation, In Proceedings of Multimedia2003, pp , [8] Rekimoto, J., GestureWrist and GesturePad: Unobtrusive Wearable Interaction Devices, In Proceedings of ISWC2001, pp , [9] Rekimoto, J., Pick-and-Drop: A Direct Manipulation Technique for Multiple Computer Environments, In Proceedings of UIST 97, pp , [10] Rekimoto, J., Tilting Operations for Small Screen Interfaces, In Proceedings of UIST 97, pp , [11] Starner, T., Auxier, J., Ashbrook, D. and Gandy M., The Gesture Pendant; A Self-illuminating, Wearable, Infrared Computer Vision System for Home Automation Control and Medical Monitoring, In Proceedings of ISWC2000, pp , [12] Swindells, C., Inkpen, K. M., Dill, J, C. and Tory, M., That one there! Pointing to establish device identity, In Proceedings of UIST2002, pp , [13] Trucco, E. and Verri, A., Introductory Techiniques for 3D Computer Vision, Prentice Hall, [14] Yatani, K., Tamura, K., Sugimoto, M. and Hashizume, H., Information Transfer Techniques for Mobile Devices by Toss and Swing Actions, In Proceedings of WMCSA2004 (to appear). [15] Yee, K., Peephole Displays: Pen Interaction on Spatially Aware Handheld Computers, In Proceedings of CHI2003, pp. 1-8, [16] Wilson, A. and Shafer, S., XWand: UI for Intelligent Spaces, In Proceedings of CHI2003, pp , [17],,,, 3, Vol. 38, No. 1, pp. 1-8, [18],,,,, Toss-It: vol. 104, No. 169, pp , [1] Bang, W., Chang, W., Kang, K., Choi, E., Potanin, A., and Kim, D., Self-contained Spatial Input Device for Wearable Computers, In Proceedings of ISWC2003, pp , [2] Harrison, B., L., Fishkin, K., P., Gujar, A., Mochon, C. and Want, R., Squeeze Me, Hold Me,

ipod touch 1 2 Apple ipod touch ipod touch 3 ( ) ipod touch ( 1 ) Apple ( 2 ) Web 1),2) 3. ipod touch 1 2 ipod touch x y z i

ipod touch 1 2 Apple ipod touch ipod touch 3 ( ) ipod touch ( 1 ) Apple ( 2 ) Web 1),2) 3. ipod touch 1 2 ipod touch x y z i ipod touch 1 1 ipod touch. 1) 6 2) 3) A library for detecting movements of an ipod touch by 3D acceleration Akira Kotaki 1 and Mariko Sasakura 1 The aim of this study is to develop a library for detecting