WISS 2019ยखૢ࡞࣌ͷ୺຤എ໘ʹ͓͚Δਓࠩ͠ࢦΛ༻͍ͨλονೖྗ֦ுख๏ͷఏҊਗ਼ ༎ี ∗ɹɹᢠӽ ೆే †ɹɹࢤங จଠ࿠ ‡֓ཁ. εϚʔτϑΥϯͷยखૢ࡞࣌ʹ͸ɼೖྗ‫ޠ‬ኮ͕‫ݶ‬ΒΕΔͱ͍͏໰୊͕͋Δɽզʑ͸εϚʔτϑΥϯͷഎ໘ʹ͓͚Δਓࠩ͠ࢦΛ༻͍ͨλονೖྗ֦ுख๏ΛఏҊ͢Δɽ͜ͷख๏Ͱ͸ɼ਌ࢦΛ༻͍ͨλονೖྗ࣌ʹɼਓࠩ͠ࢦͷ 3 ࣍‫ݩ‬తͳ޲͖͓Αͼಈ࡞Λ‫ݕ‬ग़͠ɼͦͷ݁ՌΛ༻͍ͯೖྗΛ֦ு͢Δɽ·ͨɼਓࠩ͠ࢦͱ୺຤ͷ޲͖Λ‫ʹج‬ยखૢ࡞ঢ়ଶΛ‫ݕ‬ग़͢Δ͜ͱʹΑΓɼఏҊख๏͸ยखૢ࡞࣌ʹͷΈλονೖྗΛ֦ு͢Δɽ

1a͸͡ΊʹεϚʔτϑΥϯʢҎ߱ɼ୺຤ʣͷยखૢ࡞࣌ʹ͸ɼෳ਺ຊͷࢦΛ༻͍ͨλονδΣενϟͷ࣮ߦ͕ࠔ೉Ͱ͋Δ͜ͱ͔Βɼೖྗ‫ޠ‬ኮ͕‫ݶ‬ΒΕΔͱ͍͏໰୊͕
͋Δ [1]ɽͦ͜Ͱɼզʑ͸୺຤എ໘ʹ͓͚Δਓࠩ͠ࢦΛ༻͍ͨλονೖྗ֦ுख๏ΛఏҊ͢Δɽ͜ͷख๏Ͱ͸ɼ਌ࢦΛ༻͍ͨλονೖྗ࣌ʹɼਓࠩ͠ࢦͷ 3࣍‫ݩ‬తͳ޲͖͓Αͼಈ࡞Λ‫ݕ‬ग़͠ɼͦͷ݁ՌΛ༻͍ͯೖྗΛ֦ு͢Δʢਤ 1ʣɽ͜ͷ࣮‫ݱ‬ͷͨΊʹɼզʑ͸ɼIMU ηϯαϘʔυΛ౥ࡌͨ͠ࢦྠ‫ܕ‬σόΠεΛ࡞੡͠ɼਓࠩ͠ࢦͷ޲͖͓Αͼಈ࡞ͷ‫ݕ‬ग़ʹ༻͍ͨʢਤ 2ʣɽ·ͨɼยखૢ࡞Ͱͳ͍৔߹ͷ‫࡞ޡ‬ಈΛ๷͙ͨΊɼਓࠩ͠ࢦͱ୺຤ͷ޲͖Λ‫ʹج‬ยखૢ࡞ঢ়ଶΛ‫ݕ‬ग़͢ΔΑ͏ʹͨ͠ɽ͜ΕʹΑΓఏҊख๏͸ยखૢ࡞࣌ʹͷΈλονೖྗΛ֦ு͢Δɽ

2ؔ࿈‫ڀݚ‬ࢦͷಈ࡞Λ༻͍ͨλονೖྗ֦ுख๏͕‫͞ڀݚ‬Ε
͍ͯΔɽTouch+Finger [4] ͸ɼλονೖྗ࣌ʹར༻͠ͳ͍ࢦʹΑΔδΣενϟΛ༻͍ͨख๏Ͱ͋Γɼࣝผͨ͠δΣενϟΛ‫ʹج‬ೖྗΛ֦ு͢Δɽ͜ͷख๏Ͱ͸ɼδΣενϟͷࣝผʹɼਓࠩ͠ࢦͷλον࣌ʹ͓͚Δ਌ࢦͱதࢦͷτϥοΩϯάΛ༻͍Δɽզʑ͸ɼఏҊख๏ʹ͓͍ͯɼ୺຤Λ೺࣋͠ͳ͕Β࣮ߦͰ͖ΔೖྗΛ࣮‫͢ݱ‬ΔͨΊɼ਌ࢦͷλον࣌ʹ͓͚Δਓࠩ͠ࢦͷτϥοΩϯάΛ༻͍Δɽยखૢ࡞࣌ʹ࣮ߦՄೳͳೖྗͱͯ͠୺຤എ໘ʹ͓
͚Δೖྗ͕‫͞ڀݚ‬Ε͍ͯΔɽCamTrackPoint [5] ͸ɼ୺຤എ໘ͷΧϝϥ্ʹ෺ཧϞδϡʔϧΛઃஔͨ͠ΠϯλϑΣʔεͰ͋ΓɼΧϝϥΛ༻͍ͯϞδϡʔϧૢ࡞ΛτϥοΩϯά͢ΔɽHakoda Β [3] ͸ɼϑΥτϦϑϨΫλͱ͕݀഑ஔ͞Εͨϋʔυ΢ΣΞΛ୺຤എ໘ʹ૷ண͠ɼਓࠩ͠ࢦΛ༻͍ͨ݀΁ͷૢ࡞Λ‫ݕ‬ग़͢ΔγεςϜΛ͍ࣔͯ͠Δɽ͜ΕΒͷ‫͚͓ʹڀݚ‬Δ୺
Copyright is held by the author(s).
ஜ೾େֶ৘ใϝσΟΞ૑੒ֶྨ†ஜ೾େֶίϯϐϡʔλαΠΤϯεઐ߈‡ஜ೾େֶγεςϜ৘ใ‫ܥ‬∗bਤ 1. ୺຤എ໘ʹ͓͚Δਓࠩ͠ࢦΛ༻͍ͨεϫΠϓδΣενϟͷ֦ுྫɿ௨ৗͷεϫΠϓμ΢ϯʢaʣͱϐϯνΞ΢τͱͳΔεϫΠϓμ΢ϯʢbʣɽabਤ 2. ਓࠩ͠ࢦʹ૷ண͞ΕΔࢦྠ‫ܕ‬σόΠεɿ3D ϓϦϯτͨ͠ࢦྠʢaʣͱσόΠεͷશମ૾ʢbʣɽ຤΁ͷೖྗ͸୺຤എ໘্ͷ 2 ࣍‫ݩ‬తͳྖҬʹͯߦΘΕΔҰํͰɼզʑͷఏҊख๏͸ਓࠩ͠ࢦͷ޲͖͓Αͼಈ࡞Λ༻͍ͨ 3 ࣍‫ݩ‬తͳೖྗྖҬΛ࣋ͭɽ୺຤ʹର͢Δ೺࣋࢟੎Λࣝผ͢Δํ๏΋‫͞ڀݚ‬Ε͍ͯΔɽiRotateGrasp [2] ͸ɼഎ໘͓Αͼଆ໘ʹ 44‫ݸ‬ͷ੩ి༰ྔࣜηϯαΛઃஔͨ͠୺຤Λ༻͍ΔγεςϜͰ͋Δɽ੩ి༰ྔࣜηϯαʹΑΓ୺຤ʹ৮Ε͍ͯΔखͷҐஔΛ‫ݕ‬ग़͢Δ͜ͱʹΑͬͯɼ೺࣋࢟੎Λ
ࣝผ͢ΔɽҰํɼզʑͷఏҊख๏ʹ͓͍ͯ͸ɼλονೖྗ࣌ͷਓࠩ͠ࢦͱ୺຤ͷ޲͖Λ‫ʹج‬೺࣋࢟੎Λ
ਪఆ͢Δɽ

3࣮૷ఏҊख๏Λ‫͢ূݕ‬ΔͨΊʹϓϩτλΠϓγεςϜΛ࣮૷ͨ͠ɽຊ࣮૷Ͱ͸ɼεϚʔτϑΥϯͱͯ͠
Galaxy S7 edgeʢSamsungɼAndroid 8.0.0ʣΛར༻ͨ͠ɽ͜ͷεϚʔτϑΥϯ͸ Bluetooth ‫ܦ‬༝Ͱ PCʹ઀ଓ͞ΕɼλονΠϕϯτͷൃՐ࣌ʹɼεϚʔτϑΥϯ಺ͷηϯα͔Βऔಘͨ͠ 3 ࣠Ճ଎౓͓Αͼ 3࣓࣠ଋີ౓ͷ྆ऀΛ༻͍ͯ 3 ࣠ճస֯Λࢉग़ɼૹ৴
͢Δɽ·ͨɼਓࠩ͠ࢦͷτϥοΩϯάͷͨΊʹɼ3DϓϦϯτͨ͠ࢦྠʢਤ 2aʣͱ IMU ηϯαϘʔυ

WISS 2019ab
V1V2ਤ 3. ୺຤ͷ޲͖ͱਓࠩ͠ࢦͷ޲͖Λද͢ϕΫτϧɿਓࠩ͠ࢦͷߕʹਨ௚ͳํ޲Λࣔ͢ϕΫτϧ V1ʢaʣͱεϚʔτϑΥϯͷը໘ʹਨ௚ͳํ޲Λࣔ͢ϕΫτϧ V2 ʢbʣɽ

ʢ9 Degrees of Freedom - Razor IMUɼSparkFunɼ
SEN-10736ʣ͔Βߏ੒͞ΕΔࢦྠ‫ܕ‬σόΠεΛ࡞੡ͨ͠ʢਤ 2bʣɽਓࠩ͠ࢦʹ૷ண͞Εͨࢦྠ‫ܕ‬σόΠε͸ PC ʹ USB ‫ܦ‬༝Ͱ઀ଓ͞ΕɼIMU ηϯαϘʔυ্ͷηϯα͔Βऔಘͨ͠ 3 ࣠Ճ଎౓͓Αͼ 3 ࣓࣠ଋີ౓ͷ྆ऀΛ༻͍ͯ 3 ࣠ճస֯Λࢉग़͠ɼ50 Hzʹͯૹ৴͢Δɽยखૢ࡞ঢ়ଶʹ͓͍ͯɼεϚʔτϑΥϯͷૢ࡞Λߦ͏खͷਓࠩ͠ࢦ͸୺຤എ໘ʹҐஔ͢Δɽ͜ͷͱ͖ɼਓࠩ͠ࢦͷߕʹਨ௚ͳํ޲Λࣔ͢ϕΫτϧ V1 ʢਤ3aʣͱεϚʔτϑΥϯͷը໘ʹਨ௚ͳํ޲Λࣔ͢ϕΫτϧ V2ʢਤ 3bʣͷͳ֯͢͸ 90 ◦ Ҏ্ʹͳΔɽͦ͜Ͱɼࢦྠ‫ܕ‬σόΠε͓ΑͼεϚʔτϑΥϯͷͦΕͧΕͷճస֯Λ‫ ʹج‬V1 ͓Αͼ V2 Λࢉग़͠ɼͦΕΒͷͳ֯͢ʹΑΓยखૢ࡞ঢ়ଶΛࣝผ͢Διϑτ΢ΣΞΛ࡞੒ͨ͠ʢਤ 4ʣɽຊιϑτ΢ΣΞ͸ɼV1 ͱ V2ͷͳ͕֯͢ 90 ◦ Ҏ্ͳΒ͹ยखૢ࡞ঢ়ଶͱ൑ఆ͢ΔɽຊγεςϜͷಈ࡞खॱΛࣔ͢ɽεϚʔτϑΥϯʹͯλονೖྗ͕ߦΘΕͨ࣌ɼPC ্ͷιϑτ΢ΣΞ͸ยखૢ࡞ঢ়ଶͷࣝผΛߦ͏ɽ͜͜Ͱɼยखૢ࡞ঢ়ଶ͕‫ݕ‬ग़͞Εͨ৔߹ɼࢦྠ‫ܕ‬σόΠε͓ΑͼεϚʔτϑΥϯͷͦΕͧΕͷճస͓֯Αͼηϯα஋Λ‫ʹج‬ਓࠩ͠ࢦͷδΣενϟΛࣝผ͠ɼδΣενϟʹԠͨ͡ೖྗΛ࣮ߦ͢Δɽยखૢ࡞ঢ়ଶ͕‫ݕ‬ग़͞Εͳ͔ͬͨ৔߹͸ɼ௨ৗͷλονδΣενϟΛ࣮ߦ͢Δɽ

4Ԡ༻ྫ

ఏҊख๏ͷԠ༻ྫͱͯ͠ɼεϫΠϓδΣενϟͷ֦ுΛࣔ͢ɽยखૢ࡞࣌ʹ͓͍ͯɼϐϯνδΣενϟ
Λߦ͏͜ͱ͸ࠔ೉Ͱ͋ΔɽͦͷͨΊɼยखૢ࡞ʹͯ஍ਤ΍จॻΛӾཡ͢Δʹ͸ɼ೺࣋࢟੎ͷมߋ͕‫͍ڧ‬ΒΕΔɽͦ͜Ͱɼਓࠩ͠ࢦ͕୺຤͔Βे෼ʹ཭Εͨঢ়ଶʹ͓͚ΔεϫΠϓμ΢ϯΛϐϯνΞ΢τɼεϫΠϓΞοϓΛϐϯνΠϯͱͨ͠ʢਤ 1ʣɽͳ͓ɼਓࠩ͠ࢦ͕୺຤ʹ͍ۙঢ়ଶʹ͓͍ͯ͜ΕΒ͕ೖྗ͞Εͨ৔߹ʹ͸ɼ௨ৗͷεϫΠϓδΣενϟͱͳΔɽਓࠩ͠ࢦ͕୺຤͔Βे෼ʹ཭Εͨঢ়ଶ͸ɼV1 ͱ V2 ͷͳ֯͢ʹΑΓਪఆͰ͖Δɽ͜Ε͸ɼยख೺࣋࣌ͷ V1ͱ V2 ͷͳ֯͢͸ɼਓࠩ͠ࢦͱ୺຤͕཭ΕΔͱখ͘͞ͳΓɼۙͮ͘ͱେ͖͘ͳΔͨΊͰ͋Δɽ͜ͷೖྗ֦ுʹΑΓɼϢʔβ͸ยखૢ࡞࣌ʹ͓͍ͯ΋ϐϯνδΣενϟʹ૬౰͢ΔೖྗΛߦ͏͜ͱ͕Ͱ͖Δɽਤ 4. ยखૢ࡞ঢ়ଶΛࣝผ͢Δ༷ࢠɽ5ٞ࿦ఏҊख๏Ͱ͸ɼਓࠩ͠ࢦͷτϥοΩϯάʹ IMUηϯαϘʔυͰऔಘͨ͠ 3 ࣓࣠ଋີ౓Λར༻͍ͯ͠
Δɽ͔͠͠ɼεϚʔτϑΥϯ͕࣓‫ؾ‬Λൃ͢ΔͨΊɼਓࠩ͠ࢦ͕୺຤ʹ͍ۙͮͨࡍɼਖ਼֬ʹτϥοΩϯάͰ͖ͳ͍͜ͱ͕͋ͬͨɽ·ͨɼεϚʔτϑΥϯͷճస֯͸Ճ଎౓ʹେ͖͘ґଘ͢ΔɽͦͷͨΊɼ୺຤Λܹ͘͠ಈ͔͠ͳ͕Βͷೖྗ΋͘͠͸‫͍ڧ‬λοϓ࣌ʹ͓͍ͯ͸ɼճస͕֯ਖ਼͘͠औಘͰ͖ͳ͍৔߹͕͋Δɽ͜ΕΒͷ՝୊Λղܾ͢ΔͨΊʹɼճస֯Λิਖ਼͢Δඞཁ͕͋Δɽ

6͓ΘΓʹยखૢ࡞࣌ͷ୺຤എ໘ʹ͓͚Δਓࠩ͠ࢦΛ༻͍ͨλονೖྗ֦ுख๏ͱͯ͠ɼIMU ηϯαϘʔυΛऔΓ෇͚ͨࢦྠ‫ܕ‬σόΠεͱεϚʔτϑΥϯͷͦΕͧΕͷηϯαΛར༻ͨ͠γεςϜΛࣔͨ͠ɽࠓ‫ޙ‬͸ࢦྠ‫ܕ‬σόΠε͓ΑͼεϚʔτϑΥϯͷճస֯Λิਖ਼͢ΔͨΊʹɼ֯଎౓·ͨ͸௥ՃͷηϯαΛ༻͍Δɽ·ͨɼར༻Մೳͳਓࠩ͠ࢦδΣενϟͷछྨΛ௥Ճ͠ɼͦͷར༻ྫΛ‫ݕ‬౼͢Δɽ͜ΕΒͷ࣮૷Λߦͬͨͷͪɼยखૢ࡞ঢ়ଶ‫ݕ‬ग़ख๏ͷௐ͓ࠪΑͼਓࠩ͠ࢦδΣενϟࣝผͷਫ਼౓ɼϢʔβͷҟͳΔମ੎ʹ͓͚ΔఏҊख๏ͷੑೳΛௐࠪ͢Δɽࢀߟจ‫ݙ‬[1] S. Boring, D. Ledo, X. A. Chen, N. Marquardt,A. Tang, and S. Greenberg. The Fat Thumb: Using the Thumb’s Contact Size for Single-handed
Mobile Interaction. MobileHCI ’12, pp. 39–48.
[2] L.-P. Cheng, M. H. Lee, C.-Y. Wu, F.-I. Hsiao,Y.-T. Liu, H.-S. Liang, Y.-C. Chiu, M.-S. Lee,and M. Y. Chen. iRotateGrasp: Automatic
Screen Rotation Based on Grasp of Mobile Devices. CHI ’13, pp. 3051–3054.
[3] H. Hakoda, Y. Fukatsu, B. Shizuki, andJ. Tanaka. Back-of-Device Interaction Based onthe Range of Motion of the Index Finger. OzCHI’15, pp. 202–206.
[4] H. Lim, J. Chung, C. Oh, S. Park, J. Lee,and B. Suh. Touch+Finger: Extending Touchbased User Interface Capabilities with“Idle” Finger Gestures in the Air. UIST ’18, pp. 335–346.
[5] W. Yamada, H. Manabe, and D. Ikeda. CamTrackPoint: Camera-Based Pointing Stick Using
Transmitted Light Through Finger. UIST ’18,pp. 313–320.