IPSJ SIG Technical Report Vol.2016-HCI-169 No /8/29 1,a) 1,b) 2,c) iphone 6s 3D Touch [1] 3D Touch BaroTouch BaroTouch 1 Department of C

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1 1,a) 1,b) 2,c) iphone 6s 3D Touch [1] 3D Touch BaroTouch BaroTouch 1 Department of Computer Science, Graduate School of Systems and Information Engineering, University of Tsukuba 2 College of Media Arts, Science and Technology, School of Informatics, University of Tsukuba 3 Faculty of Engineering, Information and Systems, University of Tsukuba a) rtakada@iplab.cs.tsukuba.ac.jp b) linwei@iplab.cs.tsukuba.ac.jp c) ando@iplab.cs.tsukuba.ac.jp BaroTouch Android OS 2. BaroTouch c 2016 Information Processing Society of Japan 1

2 Nakai [12]Acoustruments [10]Force Gestures [5]Ono [14] Touch+ [8]Expressy [17] ForceTap [6]TapSense [4]GripSense [3]PseudoButton [9]PreTouch [7] 2.2 Nakai [13]Expressive Touch [15]Dietz [2]PreSenseII [16]Pressing the Flesh [11] 3. : BaroTouch BaroTouch BaroTouch Android OS 3.1 Xperia Z3 Compact SO-02G Android OS c 2016 Information Processing Society of Japan 2

3 1 Fig. 1 Barometer graph and touching time of touches on different places BaroTouch 2 Fig. 2 Barometer graph and touching time of different pressure touches. 4 Fig. 4 Barometer graph when a water proof device is pressed on each floor and while the elevator is going up/down Fig. 3 Change of inner barometric pressure when a water proof device is pressed. 5 Fig. 5 Barometer Difference graph when a water proof device is pressed on each floor and while the elevator is going up/down. BaroTouch Android OS c 2016 Information Processing Society of Japan 3

4 情報処理学会研究報告 を検出することができない BaroTouch は端末を押下した 位置および気圧値の関係性を調査するために 端末のタッ 際に端末内部の気体が圧迫される現象を 気圧センサを用 チパネルを同圧力にて押下した際に 差分値が位置により いて計測しているためこの問題を解決することができる どう異なるか実験を行った 以下に実験を行う手法 環境 図 6 に異なる角度 指を立てた状態および寝かせた状 態 異なる圧力にて端末を押下した際の気圧値とタッチ面 積のグラフを示す 図 6 において まず指を立てた状態に 結果および考察を示す 実験手法 我々は異なる位置にて同じ圧力による押下を行うために て端末に押下し その後より強い力にて端末に押下した 先行研究である Expressive Touch [15] を参考に 端末に同 その後 指を寝かせた状態にて同様に押下した 図 6 から じ高さからサラミソーセージを投下した この時のサラミ 指を寝かせた状態において 気圧値およびタッチ面積は押 ソーセージは先行研究と直径および重量が同じもの 直径 下圧力に応じて変化していることが分かる しかし 指を 11 mm 長さ 200 mm 重さ 20 g を利用した また 同じ 立てた状態において 気圧値は押下圧力に応じて指を寝か 位置および同じ高さから複数回投下するために専用の治具 せた場合と同様に変化しているが タッチ面積の変化は寝 を 3D プリンタ FLASHFORGE 社製 Dreamer を用い かせた場合に比べて少ないことが分かる このことから て製作し使用した 実験に用いた治具を図 7 および図 8 に BaroTouch はタッチ面積を用いる手法に比べて 指の角度 示す 治具は図 7 に示す通り 蓋部 筒部および枠部から に関係なくタッチ圧力を取得することができることが分か なる 蓋部は穴を有しており この穴は端末のタッチパネ る また BaroTouch およびタッチ面積を組み合わせるこ ルを図 9 に示すように横 4 分割 (1.425 cm/分割) 縦 7 分 とにより指の角度および押下圧力を同時に計測するといっ 割 cm/分割 した際の任意の位置に対応する 蓋 たことが考えられる 部は上下逆さまにすることにより 分割された全ての領域 甧 䓲 甧 䓼 㻅 䓲 㻅 䓼 に対応できるように設計した また サラミソーセージお よび筒部の内側には摩擦の影響を減らすために食用油を均 一に塗布した 孡㖇 <I1B> ثحة 琎 䭷 㖇 瘲鿇 孡㖇 儗 覆鿇 単鿇 ثحة 琎 図 6 異なる角度 異なる圧力にて端末を押下した際の気圧値とタッ チ面積 図 7 実験に用いた治具 Fig. 6 Touch area size and barometer graph when a water proof Fig. 7 Jig parts. device is pressed in different finger angles and pressure. 4. 実験 BaroTouch の感圧特性を明らかにするため タッチ位置 瘲鿇 およびタッチ圧力と差分値の関係を調査する 2 つの実験 を行った 実験には防水端末として Xperia Z3 Compact SO-02G 防水性能 IPX5/8 防塵性能 IP6X を用いた 覆鿇 湡渿 単鿇 4.1 タッチ位置ごとの感圧特性調査実験 BaroTouch は端末を押下した際に端末表面に力が加え られることによってたわみ 内部の気体が圧迫される現象 を用いて押下圧を取得する手法である また押下した位置 図 8 組み立て後の治具 によって端末表面のたわみ具合は異なる 例えば同圧力で Fig. 8 Assembled jig. あっても 端末の端を押下した場合よりも中央を押下した 場合の方が端末表面は大きくたわむ この防水端末の押下 c 2016 Information Processing Society of Japan 我々はまず 端末を机の上に静置し 10 秒間差分値の記 4

5 Xperia Z3 Compact Fig. 9 Display separate line and Barometer sensor location of Xperia Z3 Compact cm Fig. 10 Barometer Difference, Absolute value and Law pass value graph when a salami is dropped hpa Fig. 11 Barometer integral value in each um value in each Fig. 12 Barometer maxim- separated area. separated area. Xperia Z3 Compact cm 1 cm 20 1 c 2016 Information Processing Society of Japan 5

6 hpa Fig. 15 Barometer integral value of each drop height on the upper left corner of the touch screen. 13 Fig. 13 Barometer integral value of each drop height on the center of the touch screen. 16 Fig. 16 Barometer maximum value of each drop height on the upper left corner of the touch screen Fig. 14 Barometer maximum value of each drop height on the center of the touch screen BaroTouch BaroTouch BaroTouch BaroTouch BaroTouch Smart Outdoor Watch WSD-F10 BaroTouch c 2016 Information Processing Society of Japan 6

7 [1] Apple: iphone 6s - 3D Touch. jp/iphone-6s/3d-touch/ ( ). [2] Dietz, P. H., Eidelson, B., Westhues, J. and Bathiche, S.: A Practical Pressure Sensitive Computer Keyboard, Proceedings of the 22nd Annual ACM Symposium on User Interface Software and Technology, UIST 09, New York, NY, USA, ACM, pp (online), DOI: / (2009). [3] Goel, M., Wobbrock, J. and Patel, S.: GripSense: Using Built-in Sensors to Detect Hand Posture and Pressure on Commodity Mobile Phones, Proceedings of the 25th Annual ACM Symposium on User Interface Software and Technology, UIST 12, New York, NY, USA, ACM, pp (online), DOI: / (2012). [4] Harrison, C., Schwarz, J. and Hudson, S. E.: TapSense: Enhancing Finger Interaction on Touch Surfaces, Proceedings of the 24th Annual ACM Symposium on User Interface Software and Technology, UIST 11, New York, NY, USA, ACM, pp (online), DOI: / (2011). [5] Heo, S. and Lee, G.: Force Gestures: Augmented Touch Screen Gestures using Normal and Tangential Force, CHI 11 Extended Abstracts on Human Factors in Computing Systems, CHI EA 11, New York, NY, USA, ACM, pp (online), DOI: / (2011). [6] Heo, S. and Lee, G.: ForceTap: Extending the Input Vocabulary of Mobile Touch Screens by Adding Tap Gestures, Proceedings of the 13th International Conference on Human Computer Interaction with Mobile Devices and Services, MobileHCI 11, New York, NY, USA, ACM, pp (online), DOI: / (2011). [7] Hinckley, K., Heo, S., Pahud, M., Holz, C., Benko, H., Sellen, A., Banks, R., O Hara, K., Smyth, G. and Buxton, W.: Pre-Touch Sensing for Mobile Interaction, Proceedings of the 2016 CHI Conference on Human Factors in Computing Systems, CHI 16, New York, NY, USA, ACM, pp (online), DOI: / (2016). [8] Hwang, S., Song, J. and Gim, J.: Touch+: Expanding Touch Input Vocabulary using a Smartphone and a Smartwatch, Proceedings of the 33rd Annual ACM Conference Extended Abstracts on Human Factors in Computing Systems, CHI EA 15, New York, NY, USA, ACM, pp (online), DOI: / (2015). [9] Hwang, S. and Wohn, K. Y.: PseudoButton: Enabling Pressure-sensitive Interaction by Repurposing Microphone on Mobile Device, CHI 12 Extended Abstracts on Human Factors in Computing Systems, CHI EA 12, New York, NY, USA, ACM, pp (online), DOI: / (2012). [10] Laput, G., Brockmeyer, E., Mahler, M., Hudson, S. E. and Harrison, C.: Acoustruments: Passive, Acousticallydriven, Interactive Controls for Handheld Devices, ACM SIGGRAPH 2015 Emerging Technologies, SIGGRAPH 15, New York, NY, USA, ACM, pp. 3:1 3:1 (online), DOI: / (2015). [11] Marshall, J., Pridmore, T., Pound, M., Benford, S. and Koleva, B.: Pressing the Flesh: Sensing Multiple Touch and Finger Pressure on Arbitrary Surfaces, pp (online), DOI: / , Springer, Berlin, Heidelberg (2008). [12] Nakai, Y., Kudo, S., Okazaki, R. and Kajimoto, H.: Tangential Force Input for Touch Panels using Bezel-aligned Elastic Pillars and a Transparent Sheet, Proceedings of the Adjunct Publication of the 27th Annual ACM Symposium on User Interface Software and Technology, UIST 14 Adjunct, New York, NY, USA, ACM, pp (online), DOI: / (2014). [13] Nakai, Y., Kudo, S., Okazaki, R., Kajimoto, H. and Kuribayashi, H.: Detection of Tangential Force for a Touch Panel using Shear Deformation of the Gel, CHI 14 Extended Abstracts on Human Factors in Computing Systems, CHI EA 14, New York, NY, USA, ACM, pp (online), DOI: / (2014). [14] Ono, M., Shizuki, B. and Tanaka, J.: Sensing Touch Force using Active Acoustic Sensing, Proceedings of the Ninth International Conference on Tangible, Embedded, and Embodied Interaction, TEI 15, New York, NY, USA, ACM, pp (online), DOI: / (2015). [15] Pedersen, E. W. and Hornbæk, K.: Expressive Touch: Studying Tapping Force on Tabletops, Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, CHI 14, New York, NY, USA, ACM, pp (online), DOI: / (2014). [16] Rekimoto, J. and Schwesig, C.: PreSenseII: Bidirectional Touch and Pressure Sensing Interactions with Tactile Feedback, CHI 06 Extended Abstracts on Human Factors in Computing Systems, CHI EA 06, New York, NY, USA, ACM, pp (online), DOI: / (2006). [17] Wilkinson, G., Kharrufa, A., Hook, J., Pursglove, B., Wood, G., Haeuser, H., Hammerla, N. Y., Hodges, S. and Olivier, P.: Expressy: Using a Wrist-worn Inertial Measurement Unit to Add Expressiveness to Touchbased Interactions, Proceedings of the 2016 CHI Conference on Human Factors in Computing Systems, CHI 16, New York, NY, USA, ACM, pp (online), DOI: / (2016). c 2016 Information Processing Society of Japan 7

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