Pre-print / Post-print version
78ਪન࿦จ˔ 24th Workshop on Interactive Systems and Software (WISS 2016)ਫӭମ‫ݧ‬Λ޲্ͤ͞Δਫத຅ೖ‫ܕ‬όʔνϟϧϦΞϦςΟ
‫ڥ؀‬: AquaCAVE ͷઃ‫૷࣮ͱܭ‬ࢁԼ ੟‫ޛ‬ɹຯീ໦ ਸɹਡ๚ ढ़Ұɹྐྵຊ ७Ұຊ‫Ͱڀݚ‬͸ਫӭ༻ϓʔϧͷఈ΍ଆ໘ʹө૾Λ౤Ө͢Δ͜ͱͰɼόʔνϟϧϦΞϦςΟ(VR) ‫ڥ؀‬Λߏங͠ਫӭମ‫ݧ‬Λ޲্͢Δ͜ͱΛ໨ࢦͨ͠ɽ͜ͷਫத຅ೖ‫ ܕ‬VR ‫ʹڥ؀‬͸ɼਫӭτϨʔχϯάͷࢧԉޮՌ΍ɼු༡‫ײ‬Λఏ‫͢ڙ‬Δ৽͠
͍ VR ‫ޮͯ͠ͱڥ؀‬Ռ͕‫ظ‬଴͞ΕΔɽຊ‫Ͱڀݚ‬͸ɼਫதʹ VR ‫ڥ؀‬Λ࣮‫͢ݱ‬Δࡍͷٕज़త՝୊Λ໌֬Խ͠ɼͦͷղܾࡦΛఏҊͨ͠ɽ຅ೖ‫ ܕ‬VR ‫ڥ؀‬Λߏ੒͢ΔͨΊʹ͸ɼϢʔβʔͷ໨ͷ 3 ࣍‫ݩ‬Ґஔͷ‫ܭ‬ଌͱɼͦͷҐஔ৘ใʹ‫ͮج‬͍ͨద੾ͳө૾ͷఏ‫͕ڙ‬ඞཁͰ͋Δɽ͔͠͠ɼҰൠతʹ VR ‫ڥ؀‬ͷߏஙʹ࢖༻͞ΕΔ੺֎ઢΛ༻͍ͨҐஔ‫ܭ‬ଌ૷ஔ͸ɼ੺֎ઢ͕େ෯ʹ‫ٵ‬ऩ͞ΕΔਫதͰ͸࢖༻Ͱ͖ͳ͍ɽ·ͨɼՄࢹޫΛ࢖༻ͨ͠৔߹΋ɼө૾͕पғʹදࣔ͞Εͨ‫؀‬‫Ͱڥ‬͸҆ఆͨ͠‫ܭ‬ଌ͕೉͍͜͠ͱ͕֬ೝ͞Εͨɽຊ‫Ͱڀݚ‬͸ɼԁภޫʹΑΔःޫΛར༻ͯ͠ɼ౤Ө͞Εͨө૾ΛΧϝϥ͔ΒͷΈෆՄࢹʹ͢Δ͜ͱͰҐஔ‫ܭ‬ଌΛ࣮‫ͨ͠ݱ‬ɽ·ͨɼਫதΛࡱӨͨ͠ࡍʹൃੜ͢Δө૾ͷ࿪Έ΍ɼଞεΫϦʔϯ͔Βͷө૾ͷөΓࠐΈ͕‫͢͜ى‬຅ೖ‫ײ‬ͷ௿ԼΛղܾ͢Δํ๏ʹ͍ͭͯ΋‫ͨ͠ূݕ‬ɽ

We propose an immersive virtual reality environment configured in a swimming pool. This environment realizes various forms of underwater entertainments and enhanced swimming training environment. However,
we have to overcome some technical challenges caused by water and surround-screen. In this research, we
focused on investigations on issues related to infrared (IR) radiation absorption and reflection on the wallsof the swimming pool and proposed the solutions. The diﬃculty on position tracking is that existing motion
capture systems using IR or blue lights are not feasible for an underwater immersive projection environment. The reason is IR is absorbed, and visible lights are unstable in complex backgrounds. Therefore, we
propose a circular-polarization-based technique for position tracking using visible-light LED markers. In
addition, we also took investigations on an optical distortion in the water, and reflections causing a decline
of immersion.

ͯɼϓʔϧͷதͰͷਫӭ͸෩‫ܠ‬ͷมԽΛָ͠Ή͜ͱ͕

1 ͸͡Ίʹ

Ͱ͖ͣ୯ௐͳಈ࡞Λ‫܁‬Γฦ͢ඞཁ͕͋ΔͨΊɼӡಈΛਫӭ͸෯޿͍೥ྸ૚ʹ਌͠·ΕΔਓ‫ؾ‬ͷ͋Δεϙʔଓ͚ΔϞνϕʔγϣϯΛอͭ͜ͱ͕Ͱ͖ͳ͍ਓ΋ଟ͍πͷҰͭͰ͋Γɼ৺਎Λ݈߁ʹอͭͨΊʹ༗ޮͰ͋Δ

͜ͱ͕͋͛ΒΕΔɽ͜ΕʹՃ͑ͯɼਫӭʹ͸஍্ͷε͜ͱ͕஌ΒΕ͍ͯΔɽਫӭ͸Ұൠతʹਫӭ༻ͷϓʔϧϙʔπʹൺ΂ͯτϨʔχϯάޮ཰Λ޲্͢Δ͜ͱ͕

͕࢖༻͞ΕΔɽਫӭτϨʔχϯάͷࡍͷ໰୊఺ͱ͠

೉͍͠ͱ͍͏໰୊΋͋Δɽྫ͑͹ɼࣗ਎ͷϑΥʔϜΛਖ਼֬ʹೝࣝͰ͖Δਓ͸ଞͷਓΑΓ΋ૣ͘੒௕͢Δࣄ

An Underwater Immersive Virtual Reality Environment for Enhancing the Swimming Experience: The
Design and Implimentation of AquaCAVE
Shogo Yamashita, Takashi Miyaki, Sunichi Suwa, Jun
Rekimoto, ౦‫ژ‬େֶֶࡍ৘ใֶ෎, Graduate school ofinterdisciplinary information studies, the Universityof Tokyo.
Sunichi Suwa, Jun Rekimoto, ιχʔίϯϐϡʔλαΠΤϯε‫ॴڀݚ‬, Sony Computer Science Laboratories.
ίϯϐϡʔλιϑτ΢ΣΞ, Vol.29, No.1 (2012), pp.78–84.
[‫ڀݚ‬࿦จ] 2017 ೥ 1 ݄ 10 ೔ड෇.

͕ग़དྷΔ͜ͱ͸‫໌ʹط‬Β͔ʹͳ͍ͬͯΔ [8]ɽ ͔͠͠ͳ͕Βɼਫӭͷ৔߹͸ɼਫӭͷίʔν͔ΒͷϑΥʔϜͷमਖ਼ʹؔ͢ΔࢦࣔΛϦΞϧλΠϜʹड͚Δ͜ͱ͕
Ͱ͖ͳ͍ͨΊɼࣗ਎ͷӡಈϑΥʔϜΛਖ਼֬ʹೝࣝ͢Δ
͜ͱ͕೉͍͠৔߹͕ଟ͍ɽ
ͦ͜Ͱຊ‫Ͱڀݚ‬͸ɼϓʔϧͷఈ΍ଆ໘ʹཱମө૾Λදࣔ͢Δ͜ͱͰ຅ೖ‫ܕ‬όʔνϟϧϦΞϦςΟ‫ڥ؀‬(CAVE) Λߏங͠ਫӭମ‫ݧ‬Λ޲্͢Δ͜ͱΛ໨ࢦ͠

Vol. 29 No. 1 Feb. 201279

2 ؔ࿈‫ڀݚ‬2. 1 ৽͍͠όʔνϟϧϦΞϦςΟମ‫ݧ‬AquaCAVE ͸ਫதͰͷ VR ‫ڥ؀‬Λఏ‫͢ڙ‬Δɽैདྷ
ͷ VR ‫ڥ؀‬͸஍্ʹͯϢʔβʔʹྟ৔తͳ 3D ө૾Λఏ‫͢ڙ‬Δ΋ͷͰ͋ͬͨ [3] [16]ɽͦͷͨΊɼϢʔβʔͷҠಈͰ͖Δͷ͸஍໘ʹฏߦͨ͠ํ޲ͷΈʹ੍‫͞ݶ‬Ε͍ͯͨɽ͔͠͠ɼAquaCAVE ͷ৔߹ɼϢʔβʔ͕ਫਤ1

AquaCAVE: ਫӭମ‫ݧ‬Λ޲্ͤ͞Δਫத຅ೖ‫ܕ‬όʔνϟϧϦΞϦςΟ‫ڥ؀‬தʹු͔Μͩঢ়ଶͰ VR ‫ڥ؀‬Λମ‫͖Ͱݧ‬ΔͨΊɼ্෦ํ޲ͷಈ͖ͷ੍‫͘ͳ͕ݶ‬ɼුྗΛ‫͡ײ‬Δ͜ͱ͕Ͱ͖
ΔɽͦͷͨΊɼӭ͍Ͱ͍Δ‫֮ײ‬΍Ӊ஦༡ӭΛ͍ͯ͠Δ

ͨʢਤ 1ʣ [5]ɽ ϓʔϧ‫ ܕ‬VR ‫ڥ؀‬͸ɺԾ૝తͳ‫ܠ‬৭࣌ͷΑ͏ͳॏྗΛΑΓྟ৔తʹఏ‫͖Ͱڙ‬Δ͜ͱ͕‫ظ‬ͷதͰຊ౰ʹӭ͍Ͱ͍Δ͔ͷΑ͏ͳ຅ೖతͳମ‫ݧ‬Λί଴͞ΕΔ [20]ɽJain Β͸ϔουϚ΢ϯτσΟεϓϨ

ϯϐϡʔλάϥϑΟοΫʹΑΓ࠶‫͖Ͱݱ‬Δɽྫ͑͹ɼΠΛ૷ணͨ͠Ϣʔβʔͷ࿹ͱ଍ΛαεϖϯγϣϯͰ্αϯΰ঴ʹғ·ΕͨւͰͷਫӭମ‫ݧ‬ΛϢʔβʹఏ‫͢ڙ‬෦͔Β௻ΓԼ͛ɼө૾ʹ߹Θ੍ͤͯ‫͢ޚ‬Δ͜ͱͰਫத

Δࣄ͕Ͱ͖Δɽ·ͨɼຊγεςϜ͸ਫӭϑΥʔϜͳͲͷ‫֮ײ‬Λ࠶‫͠ݱ‬ɼԾ૝తͳεΩϡʔόμΠϏϯά‫ݧܦ‬

3D ΩϟϥΫλʔͱͯ͠ϓʔϧதʹॏ৞දࣔͰ͖ΔɽΛఏ‫͢ڙ‬Δ VR ‫ڥ؀‬Λߏ੒ͨ͠ [7]ɽ͔͠͠ɼਫ͕ഽ

ͦͷͨΊɼਫӭτϨʔχϯάͷޮ཰Λ޲্͢ΔޮՌ΋ʹ౰ͨΔ‫֮ײ‬΍ਫѹͳͲɼਫதಛ༗ͷ‫֮ײ‬Λ࠶‫͢ݱ‬Δ‫ظ‬଴͞ΕΔɽྫ͑͹ɼΩϟϥΫλʔʹମΛॏͶͯӭ͙͜ͱ͸Ͱ͖ͳ͔ͬͨɽ

͜ͱʹΑΔਫӭͷϑΥʔϜͷमਖ਼΍ɼա‫ڈ‬ͷࣗ਎ͷ‫ه‬࿥ͱͷ‫ڝ‬ӭͳͲ͕࣮‫͞ݱ‬ΕΔɽຊ࿦จதͰ͸ɼ͜ͷਫ

2. 2 ਫӭτϨʔχϯάࢧԉத຅ೖ‫ ܕ‬VR ‫ڥ؀‬Λ AquaCAVE ͱ‫͢ʹͱ͜Ϳݺ‬Δɽ

ਓ͕ؒීஈੜ‫͍ͳ͍ͯ͠׆‬ਫதʹ͓͍ͯɼࣗ਎ͷӡ

͔͠͠ɼAquaCAVE ʹ͸ɼա‫ڈ‬ͷ VR ‫ؔ͢ʹڥ؀‬ಈϑΥʔϜΛೝࣝ͢Δ͜ͱ͸ΑΓ೉͍͜͠ͱ͕ߟ͑

Δ‫ͯʹڀݚ‬ٞ࿦͞Ε͍ͯͳ͍৽͍ٕ͠ज़త՝୊͕͋ΔɽΒΕΔɽՃ͑ͯɼਫதʹͯߦΘΕΔεϙʔπͷτϨʔྫ͑͹ɼ຅ೖ‫ ܕ‬VR ‫ڥ؀‬ͷ࣮‫ʹݱ‬͸ɼϢʔβʔͷ໨ͷχϯάͷࡍʹ͸ɼίʔν͕ӡಈϑΥʔϜͷमਖ਼౳ʹؔ

3 ࣍‫ݩ‬ҐஔΛ‫ܭ‬ଌ͢ΔͨΊͷϔουτϥοΩϯά͕ඞ

͢ΔࢦࣔΛτϨʔχʔʹϦΞϧλΠϜʹ఻͑Δ͜ͱ

ཁͰ͋Δɽ͔͠͠ɼ‫ط‬ଘͷҐஔ‫ܭ‬ଌख๏͸ɼϢʔβʔ͕Ͱ͖ͳ͍৔߹͕ଟ͍ɽͦͷͨΊɼίʔνʹ͸ϑΥʔ͕ਫதʹଘࡏ͠पғʹө૾͕දࣔ͞ΕΔ AquaCAVEϜमਖ਼ʹؔ͢ΔΑΓ۩ମతͳઆ໌ೳྗ͕๬·Εɼਫதʹ͓͍ͯ࢖༻͢Δ͜ͱ͕Ͱ͖ͳ͍ɽྫ͑͹ɼҰൠతதͷεϙʔπʹ͓͚ΔτϨʔχϯάࢦಋͷ೉қ౓͸ʹ VR ͷ࣮‫͍༻ʹݱ‬ΒΕΔ੺֎ઢΛ༻͍ͨҐஔ‫ܭ‬ଌଞͷεϙʔπʹൺ΂ͯߴ͍ [25] [26]ɽ͜ΕΒͷ໰୊Λख๏͸ɼਫʹΑΔ੺֎ઢͷ‫ٵ‬ऩʹΑΓे෼ͳ‫ܭ‬ଌൣղܾ͢ΔͨΊͷҰͭͷํ๏ͱͯ͠ɼϔουϚ΢ϯτ

ғ͕ಘΒΕͳ͔ͬͨɽ·ͨɼՄࢹޫઢΛ༻͍ͨ‫ܭ‬ଌखσΟεϓϨΠʢHMDʣΛ૷ண͢Δ͜ͱ͕͋Δ [1] [6]ɽ๏ʹ͸ɼपғʹ౤Ө͞ΕΔө૾ʹΑͬͯ‫͜͞ى‬ΕΔਫ਼

·ͨɼMorales Β͕ఏҊͨ͠μΠόʔࢧԉͷͨΊͷ౓ͷ௿Լͷ໰୊͕͋Δɽຊ‫Ͱڀݚ‬͸ɼ‫ط‬ଘͷҐஔ‫ܭ‬ଌ֦ு‫ײ࣮ݱ‬ʢARʣσΟεϓϨΠ΋͋Δ [12]ɽ͔͠͠ɼ

ख๏ʹ͓͚Δٕज़త՝୊Λ໌֬ʹͨ͠ɽ·ͨɼԁภޫ

HMD ͸ٕज़తʹޫֶ‫ܥ‬ͷαΠζΛখ͘͢͞Δ͜ͱ͕ʹΑΔө૾ͷःޫͱՄࢹޫ LED ϚʔΧʔͷ௥੻ʹΑ೉͘͠ɼ૷ணͯ͠ӭ͍ͩ৔߹ʹ͸ɼਫӭಈ࡞΍ਫͷ఍Δɼਫத຅ೖ‫ ܕ‬VR ‫ڥ؀‬தʹ͓͚ΔҐஔ‫ܭ‬ଌख๏Λ߅ʹӨ‫ڹ‬Λ༩͑Δ͜ͱ͕‫ݒ‬೦͞ΕΔɽAquaCAVE ʹఏҊ͠ɼͦͷ༗ޮੑʹ͍ͭͯ‫ͨ͠ূݕ‬ɽՃ͑ͯɼϓʔ͓͍ͯɼϢʔβʔ͸ཱମө૾Λ‫ݟ‬ΔͨΊʹΞΫςΟ

ϧଆ໘΍ਫ໘΁ͷө૾ͷөΓࠐΈͳͲ͕‫͢͜ى‬ɼө૾ϒγϟολʔํࣜͷ 3D ϝΨω͕૊Έࠐ·Εͨΰʔάఏ‫ؔ͢ʹڙ‬Δ໰୊ͷղܾख๏ʹ͍ͭͯ΋‫ͨ͠ূݕ‬ɽϧΛ૷ண͢Δɽ͜ͷํࣜͰ VR ‫ڥ؀‬Λߏ੒͢Δ৔߹ɼ

ίϯϐϡʔλιϑτ΢ΣΞ

80

Ϣʔβʔ͕૷ண͢ΔΰʔάϧΛɼਫӭΰʔάϧఔ౓ͷΩϟϓνϟʔσόΠε͸ɼϢʔβʔʹ੺֎ઢΛ൓ࣹ͢αΠζʹখ‫ܕ‬Խ͢Δ͜ͱ͕ٕज़తʹՄೳͰ͋ΔɽਫӭΔ‫ٿ‬ঢ়ͷ࠶‫ؼ‬ੑ൓ࣹࡐ੡ϚʔΧʔΛ૷ண͠ɼ੺֎ઢΛ͸ຊདྷɼਫӭΰʔάϧΛ૷ணͯ͠ߦ͏εϙʔπͰ͋

ൃ͢Δෳ਺ͷΧϝϥʹΑΓϚʔΧʔΛ‫؍‬ଌ͢Δɽ·ΔͨΊɼಉఔ౓ͷαΠζͷΰʔάϧ͕ਫӭ‫ʹڥ؀‬༩ͨɼͦΕͧΕͷΧϝϥͷө૾Λ༻͍ͯࡾ֯ଌྔʹΑΓ͑ΔӨ‫ڹ‬͸ HMD ʹൺ΂ͯগͳ͍ͱߟ͑ΒΕΔɽ·ϚʔΧʔͷ 3 ࣍‫ݩ‬ҐஔΛ‫ܭ‬ଌ͢Δɽ੺֎ઢΛର৅ʹͨɼCAVE ͷ৔߹ɼਫӭऀ͕ࣗ਎ͷ࿹΍ϓʔϧͷนɼরࣹ͠ɼ൓ࣹ͕ฦͬͯ͘Δ·Ͱͷ͔࣌ؒΒਂ౓Λ‫ܭ‬ଌϨʔϯΛ෼͚Δෑ‫Ͳͳډ‬Λීஈͷਫӭ࣌ͱಉ͡Α͏

͢ΔΑ͏ͳσόΠε΋ଘࡏ͢Δɽ͔͠͠ɽਫ͸੺֎ઢʹ௚઀‫ݟ‬Δ͜ͱ͕Ͱ͖Δͱ͍͏ར఺΋͋Δɽ

Λେ͖͘‫ݮ‬ਰ͢ΔͨΊɼਫதʹͯ੺֎ઢΛ༻͍ΔҐஔଞͷΞϓϩʔνͱͯ͠ɼϢʔβʔͱҰॹʹӭ͙ε‫ܭ‬ଌ૷ஔΛ࢖༻͢Δ͜ͱ͸೉͍͠ [4]ɽΠϛϯάϩϘοτʹ৘ใΛࣸͩ͢͠΋ͷ΋͋Δ [18]ɽ

3. 1. 2 ՄࢹޫΛ༻͍ͨҐஔ‫ܭ‬ଌʹ͓͚Δ໰୊

͜ͷγεςϜ͸ϢʔβʔͷਫӭϑΥʔϜΛΧϝϥͰࡱ೾௕ͷ୹͍Մࢹޫͷ৔߹ɽਫதʹ͓͍ͯ΋ޫͷ‫ݮ‬ਰӨ͠ϩϘοτ্ͷσΟεϓϨΠʹදࣔ͢Δ͜ͱ͕Ͱ͖

͕গͳ͍ɽOqus Underwater [15] ͸ɼ੺֎ઢͷ୅Θ

Δɽ͔͠͠ɼσΟεϓϨΠͷαΠζʹ͸‫͕͋౓ݶ‬Δͨ

Γʹɼ੨৭ͷՄࢹޫΛஅଓతʹরࣹ͢Δ͜ͱͰਫதʹΊɼຊ౰ͷւͰӭ͍Ͱ͍Δ͔ͷΑ͏ͳମ‫ݧ‬Λ࡞Γग़ͯ̏࣍͢‫ݩ‬Ґஔ‫ܭ‬ଌΛ࣮‫ͨ͠ݱ‬σόΠεͰ͋Δɽ͔͜͠ͱ͸Ͱ͖ͳ͔ͬͨɽ

͠ɼ͜ͷΑ͏ͳσόΠεΛ CAVE தʹͯ࢖༻ͨ͠৔

Dungeons ˍ swimmers [11] ͸Ի੠ʹΑΔϑΟʔ߹ʹ͸ɼ౤Өͨ͠ө૾Λ્֐ͯ͠͠·͏͜ͱ͕ߟ͑ΒυόοΫΛ༻͍ͨΠϯλϥΫςΟϒͳਫத༻ͷήʔϜΕΔɽ·ͨɼՄࢹޫ LED ͷΑ͏ͳࣗൃޫϚʔΧʔΛͷ࣮૷ྫͰ͋Δɽ͜ͷγεςϜ͸ਫӭʹϩʔϧϓϨΠ

࢖༻͢Δํ๏΋ߟ͑ΒΕΔɽ͔͠͠ɼCAVE ͷΑ͏ϯάήʔϜʹ͓͍ͯఢͱઓ͏ࡍͷΑ͏ͳήʔϜੑΛʹपғΛෳࡶͳө૾Ͱғ·Εͨ‫ڥ؀‬ͷ৔߹ɼը૾ॲ

࣋ͨͤΔ͜ͱʹΑΓɼӭ͙͜ͱʹର͢ΔϞνϕʔγϣཧʹΑΓϚʔΧʔͷྖҬͷΈΛഎ‫ܠ‬ө૾த͔Βநग़ϯͷ޲্ΛՄೳʹͨ͠ɽ͔͠͠ɼAquaCAVE ͷ 3D

͢Δ͜ͱ͕೉͘͠ɼө૾ͷҰ෦ΛϚʔΧʔͱͯ͠‫ޡ‬ೝΩϟϥΫλʔʹΑΔࢹ֮తͳϑΟʔυόοΫ͸ɼԻ੠ࣝͯ͠͠·͏ͳͲͷ໰୊͕࣮‫ʹݧ‬ΑΓ֬ೝ͞Ε͍ͯͰͷࢦ͕ࣔ೉͍͠ਫӭϑΥʔϜͷࢦಋͳͲͷࡍʹΑΓ

Δ [19].

ޮՌ͕͋Δͱߟ͑ΒΕΔɽ

3. 1. 3 ࢹ֮ϚʔΧΛ༻͍ͨҐஔ‫ܭ‬ଌʹ͓͚Δ໰୊‫ܭ‬ଌର৅ʹҰఆͷύλʔϯ͕ҹ࡮͞ΕͨϚʔΧʔ

3 ਫத຅ೖ‫ ܕ‬VR ‫͚͓ʹڥ؀‬Δϔουτϥο
Ωϯάʹؔ͢Δ՝୊

Λઃஔ͠ɼͦͷϚʔΧʔΛΧϝϥʹΑͬͯࣝผ͢Δ͜ͱͰ‫ܭ‬ଌର৅ͷҐஔ࢟੎Λ‫ٻ‬ΊΔҐஔ‫ܭ‬ଌख๏΋ଘਫத຅ೖ‫ ܕ‬VR ‫ڥ؀‬Λߏங͢ΔͨΊʹ͸ɼਫதͷ

ࡏ͢ΔɽҐஔ࢟੎ͷ‫ʹࢉܭ‬͸ɼϚʔΧʔͷେ͖͞΍܏Ϣʔβʔͷ໨ͷ̏࣍‫ݩ‬ҐஔΛ‫ܭ‬ଌ͢Δඞཁ͕͋Δɽ͖ͷ৘ใ͕༻͍ΒΕΔɽ͜ͷํࣜΛ༻͍ͯҐஔ‫ܭ‬ଌΛϔουτϥοΩϯάʹΑΓ಄෦ͷҐஔ࢟੎Λ‫ܭ‬ଌ͢Δߦ͏৔߹ɼϚʔΧʔΛೝࣝ͢ΔͨΊʹ‫ܭ‬ଌ‫े͕ڥ؀‬͜ͱͰɼ໨ͷҐஔΛࢉग़͢Δ͜ͱ͕Ͱ͖Δɽ͔͠͠ɼ

෼ʹ໌Δ͍ඞཁ͕͋Δ [14]ɽ͔͠͠ɼ຅ೖ‫ ܕ‬VR ‫ڥ؀‬ਫத຅ೖ‫ ܕ‬VR ‫Ͱ಺ڥ؀‬ͷҐஔ‫ܭ‬ଌʹ͸༷ʑͳٕज़

ʹ͓͍ͯϢʔβʔ΁઱໌ͳө૾Λఏ‫͢ڙ‬ΔͨΊʹ͸ɼత՝୊͕ଘࡏ͢ΔɽຊষͰ͸ɼ‫ط‬ଘͷҐஔ࢟੎‫ܭ‬ଌखपғ͕҉͍ํ͕޷·͍͠ɽ·ͨɼө૾ͷҰ෦ΛΧϝϥ๏ͱɼͦͷख๏Λਫத຅ೖ‫ ܕ‬VR ‫ڥ؀‬ͷ࣮‫༻࢖ʹݱ‬͕ϚʔΧʔͱͯ͠‫ޡ‬ೝࣝͯ͠͠·͏Մೳੑ͸ɼ͜ͷํ͢Δ৔߹ͷ໰୊ʹ͍ͭͯड़΂ΔɽࣜΛ࢖༻ͨ͠৔߹ʹ΋ߟ͑ΒΕΔɽ

3. 1 ޫֶࣜҐஔ‫ܭ‬ଌ

3. 2 ‫׳‬ੑηϯαࣜҐஔ‫ܭ‬ଌ

3. 1. 1 ੺֎ઢΛ༻͍ͨҐஔ‫ܭ‬ଌʹ͓͚Δ໰୊ޫֶࣜҎ֎ͷҐஔ࢟੎‫ܭ‬ଌख๏ͱͯ͠ɼδϟΠϩη

̏࣍‫ݩ‬Ґஔ‫ܭ‬ଌʹ͸੺֎ઢ͕࢖༻͞ΕΔ৔߹͕ଟϯα (֯଎౓‫ )ܭ‬Λ‫ܭ‬ଌର৅ʹෳ਺‫ݸ‬ઃஔ͠ɼಈ͖ͷ͍ɽྫ͑͹ɼOptiTrack [13] ʹ୅ද͞ΕΔϞʔγϣϯ৘ใ͔ΒҐஔΛ‫ٻͯ͠ࢉٯ‬ΊΔ‫׳‬ੑηϯαࣜҐஔ‫ܭ‬

Vol. 29 No. 1 Feb. 201281ଌख๏͕͋͛ΒΕΔ [29]ɽ͔͠͠ɼ͜ͷํ๏Λ࢖༻ͧ͠ΕεϐʔΧʔ͔Βͷ௒Ի೾ͷ‫౓ڧ‬Λ༻͍ͯɼࡾ֯ଌ

ͨ৔߹ɼϓʔϧͷ಺ʹ͓͚Δ‫ܭ‬ଌର৅ͷઈରҐஔΛྔʹΑΓ‫ܭ‬ଌର৅ͷҐஔΛ‫ٻ‬ΊΔɽ͔͠͠ɼ௒Ի೾Λ‫ܭ‬ଌ͢Δ͜ͱ͕೉͍͠ɽ·ͨɼ࣌ؒ‫ܦ‬աͰ‫͕ࠩޡ‬஝ར༻ͯ͠ਫதͰҠಈ͢Δ‫ܭ‬ଌର৅ͷҐஔΛऔಘ͢Δ

ੵͯ͠͠·͏ͱ͍͏໰୊΋͋ΔɽCAVE Λ࣮‫͢ݱ‬Δ

৔߹ɼυοϓϥʔޮՌʹΑΔ‫ܭ‬ଌҐஔͷͣΕΛߟྀͨ͢Ίʹ͸Ϣʔβʔͷ໨ͷઈରҐஔ͕ඞཁͱͳΔͨΊɼΔඞཁ͕͋Δɽ·ͨɼ௒Ի೾͸ਫͷྲྀΕʹΑͬͯ΋Ө‫׳‬ੑηϯαࣜҐஔ‫ܭ‬ଌ͸ਫத຅ೖ‫ ܕ‬VR ‫͚͓ʹڥ؀‬‫ڹ‬Λड͚Δ͜ͱ͕஌ΒΕ͍ͯΔ [28]ɽ௒Ի೾ࣜҐஔ‫ܭ‬ΔϔουτϥοΩϯάͨΊͷҐஔ‫ܭ‬ଌख๏ͱͯ͠ద੾

ଌΛɼϥϯμϜͳϢʔβʔͷಈ͖ͱਫྲྀͷൃੜ͕૝ఆͰ͸ͳ͍ɽ͞ΕΔਫத຅ೖ‫ ܕ‬VR ‫ڥ؀‬தʹͯ࢖༻͢Δ৔߹ʹ͸ɼ্‫ͨ͠ه‬Α͏ͳղܾࠔ೉ͳٕज़త՝୊͕ଘࡏ͢Δɽ

3. 3 ࣓‫ࣜؾ‬Ґஔ‫ܭ‬ଌ࣓‫ࣜؾ‬Ґஔ‫ܭ‬ଌ͸‫ܭ‬ଌର৅ʹϨγʔόʔ (࣓‫ؾ‬ηϯα) Λઃஔ͠ɼͦΕʹରͯ͠τϥϯεϛολʔ (࣓‫ؾ‬

4 ਫத຅ೖ‫ ܕ‬VR ‫͚͓ʹڥ؀‬Δ΁ουτϥο
Ωϯάͷ࣮‫ݱ‬ൃੜ‫ʹ )ث‬ΑΓ࣓‫ؾ‬ΛૹΔ͜ͱͰҐஔ‫ܭ‬ଌΛ࣮‫͢ݱ‬Δ

4. 1 ‫ڥ؀ূݕ‬΋ͷͰ͋Δɽड৴‫ʹ಺ػ‬͸ 3 ࣠ํ޲ʹ௚ߦͨ͠ίΠϧຊ‫Ͱڀݚ‬͸ɼਫத຅ೖ‫ ܕ‬VR ‫( ڥ؀‬AquaCAVE) ͷ͕ઃஔ͞Ε͓ͯΓɼͦΕͧΕͷίΠϧʹͯൃੜ͢Δి࣮‫ݱ‬ՄೳੑΛ‫͢ূݕ‬ΔͨΊʹө૾Λଆ໘΍ఈ໘ʹදྲྀྔͷҧ͍͔Βτϥϯεϛολʔ͔ΒͷҐஔɾ࢟੎ΛࣔՄೳͳখ‫ܕ‬ͷϓʔϧΛ࢖༻ͨ͠ʢਤ 1ʣ. ϓʔϧͷ‫ٻ‬ΊΔ͜ͱ͕Ͱ͖Δɽ͔͠͠ɼ࣓‫ࣜؾ‬Ґஔ‫ܭ‬ଌํࣜͷੇ๏͸ [௕͞]3mɼ[෯]2mɼ[ਂ͞]1.5m(ਫਂ 1m) Ͱ͋ܽ఺ͱͯ͠ɼ‫ܭ‬ଌ‫ۚʹڥ؀‬ଐ΍࣓ੑࡐྉ͕͋Δ৔߹ɼΓɼ3cm ͷްΈΛ࣋ͭΞΫϦϧͰߏ੒͞Ε͍ͯΔɽө‫ܭ‬ଌͷཚΕ͕ੜͯ͡͠·͏͜ͱ͕͋Δ [22]ɽຊ‫Ͱڀݚ‬૾ͷදࣔ͸ɼϓʔϧͷఈ໘ͱଆ໘ʹషΓ෇͚ͨϦΞϓ࢖༻ͨ͠ϓʔϧ͸ิ‫ڧ‬ͷͨΊͷۚଐͰ෴ΘΕ͓ͯΓɼϩδΣΫγϣϯγʔτʹϓϩδΣΫλʔʹΑͬͯө૾͜ͷΑ͏ͳ‫ࣜؾ࣓͍͓ͯʹڥ؀‬ͷҐஔ‫ܭ‬ଌख๏Λ༻͍Λ౤Ө͢Δ͜ͱͰ࣮‫ͨ͠ݱ‬ɽϢʔβʔ͸ΰʔάϧʹ૊

Δ৔߹ʹ͸ɼ࣓‫ؾ‬ͷཚΕΛߟྀͯ͠Ґஔ৘ใΛิਖ਼͢Έࠐ·ΕͨΞΫςΟϒγϟολʔํࣜͷ 3D ϝΨωΛΔٕज़͕ඞཁͱͳΔ [27]ɽ·ͨɼ࣓ք͸‫཭ڑ‬ͷ 3 ৐ʹ૷ண͢Δ͜ͱͰཱମө૾Λ‫ݟ‬Δ͜ͱ͕Ͱ͖Δɽ

൓ൺྫͯ͠‫ݮʹܹٸ‬ਰ͢ΔͨΊɼ‫ܭ‬ଌൣғͷ֦େ͕೉Ґஔ‫ܭ‬ଌ͸ਫӭ༻Ωϟοϓʹઃஔͨ͠Մࢹޫ LED͍͠ͱ͍͏໰୊΋͋ΔɽՃ͑ͯɼ͜ͷํࣜͷ৔߹ɼडϚʔΧʔΛ௥੻͢Δ͜ͱʹΑͬͯߦ͏ɽෳ਺ͷΧϝϥ৴‫಺ػ‬ͷ‫ܭ‬ଌσʔλΛύιίϯͳͲͷ‫ૹʹثػࢉܭ‬৴ʹΑͬͯಉҰͷϚʔΧʔΛ௥੻͢Δ͜ͱ͕Ͱ͖Ε͹ɼ

͢Δඞཁ͕͋ΔɽਫதͰσʔλΛૹ৴͢ΔͨΊʹ͸ɼࡾ֯ଌྔΛ༻͍ͯͦͷ 3 ࣍‫ݩ‬ҐஔΛ‫ٻ‬ΊΔ͜ͱ͕Ͱ௒Ի೾௨৴΍Մࢹޫ௨৴Λ࣮‫͢ݱ‬ΔͨΊͷ௨৴૷ஔ͖Δɽ·ͨɼҐஔؔ܎͕‫ݻ‬ఆ͞Εͨ 3 ͭͷϚʔΧʔ͕ඞཁͱͳΔɽ௨৴‫ثػ‬ͷϢʔβʔ΁ͷઃஔ΍ɼՄࢹͷͦΕͧΕͷ 3 ࣍‫ݩ‬ҐஔΛऔಘͰ͖Ε͹ɼਫӭΩϟοޫ௨৴ʹΑΔޫͷরࣹ͸ਫத຅ೖ‫ ܕ‬VR ‫͚͓ʹڥ؀‬

ϓͷ 3 ࣍‫ݩ‬Ґஔͱ࢟੎Λࢉग़Ͱ͖ΔɽਫӭΩϟοϓͷ

ΔϢʔβମ‫ݧ‬Λ௿Լͤ͞ΔՄೳੑ͕͋Δɽ্‫ه‬ͷཧ༝Ґஔͱ࢟੎͔Β͸ CAVE ͷ࣮‫ʹݱ‬ඞཁͱ͞ΕΔϢʔ͔Βɼ࣓‫ࣜؾ‬Ґஔ‫ܭ‬ଌ͸ਫத຅ೖ‫ ܕ‬VR ‫ڥ؀‬தͰͷβʔͷ໨ͷ 3 ࣍‫ݩ‬ҐஔΛࢉग़Ͱ͖ΔɽҐஔ‫ܭ‬ଌख๏ͱͯ͠ద੾Ͱ͸ͳ͍͜ͱ͕ਪଌ͞ΕΔɽ

4. 2 ԁภޫʹΑΔө૾ͷःޫΛ༻͍ͨՄࢹޫ LED
3. 4 ௒Ի೾ࣜҐஔ‫ܭ‬ଌϚʔΧʔͷҐஔ‫ܭ‬ଌਫதͰͷҐஔ‫ܭ‬ଌʹ͸ɼ௒Ի೾Λ༻͍Δ͜ͱ͕Ͱ͖

ຊ‫Ͱڀݚ‬͸ɼ੺֎ઢ͕‫ٵ‬ऩ͞Εɼ͔ͭɼपғ͕ෳࡶΔ [24]ɽ௒Ի೾͸ɼप೾਺͕௿͍ͨΊਫதͰͷ‫ݮ‬ਰ͕ͳө૾ʹғ·Εͨ‫ֶࣜޫ͍͓ͯʹڥ؀‬Ґஔ‫ܭ‬ଌख๏গͳ͍͜ͱ͕஌ΒΕ͍ͯΔɽ௒Ի೾ࣜҐஔ‫ܭ‬ଌͰ͸ɼΛ༻͍ͨϔουτϥοΩϯάΛ࣮‫͢ݱ‬Δํ๏ΛఏҊ͢‫ܭ‬ଌର৅ʹ௒Ի೾ηϯαʔΛઃஔ͠ɼ3 ఺ͷ௒Ի೾εΔɽຊ‫Ͱڀݚ‬͸ɼपғΛө૾ʹғ·Εͨ‫͍͓ͯʹڥ؀‬ϐʔΧʔ͔Βൃੜͨ͠௒Ի೾Λ‫ܭ‬ଌ͢Δɽ·ͨɼͦΕՄࢹޫ LED ͷ҆ఆͨ͠௥੻ΛՄೳͱ͢ΔͨΊʹɼ2ίϯϐϡʔλιϑτ΢ΣΞ

82

映像の拡大

映像の歪み

(A) 円偏光板による映像の遮光なし (B) 円偏光板による映像の遮光あり(誤認識が発生)(誤認識が減少)(A)半球型レンズなし

ਤ2(B)半球型レンズありഎ‫ܠ‬ө૾ͷःޫʹΑΔϚʔΧʔ‫ޡ‬ೝࣝͷ௿‫ݮ‬ਤ3൒‫ܕٿ‬ͷϨϯζʹΑͬͯิਖ਼͞Εͨө૾ͷ࿪Έͱ֦େछྨͷճసํ޲ͷҟͳΔԁภޫ൘ʹΑΔө૾ͷःޫΛ༻͍ͨɽҎԼʹඞཁߏ੒ͱɼ‫ݪ‬ཧʹ͍ͭͯड़΂ΔɽϔουτϥοΩϯά༻ͷΧϝϥ͸ϓʔϧ಺෦ͷਫதʹ۶ં཰ͷҧ͍͕͋ΔͨΊͰ͋Δ [17]ɽ࿪‫ۂ‬ऩࠩ͸ɼϢʔβͷ໨ͷ 3 ࣍‫ݩ‬ҐஔͷऔಘʹӨ‫ڹ‬Λ༩͑Δɽ

ʹઃஔ͠ɼΧϝϥͷϨϯζʹ͸ࠨԁภޫ൘Λઃஔ͢ਫʹΑΔ࿪‫ۂ‬ऩࠩ͸ɼ൒‫ܗٿ‬ͷϨϯζΛ༻͍ͯิਖ਼

Δɽ·ͨɼϓʔϧͷ಺ଆશମʹ͸ӈԁภޫ൘ΛషΓ෇ՄೳͰ͋Δ͜ͱ͕‫ط‬ଘ‫ʹڀݚ‬Αͬͯ໌Β͔ʹͳ͍ͬͯ

͚Δɽ͜ͷߏ੒ʹΑΓɼΧϝϥʹ͸ϓʔϧͷ֤໘ʹ౤

Δɽ൒‫ܗٿ‬ͷϨϯζ͸ɼਫͱۭ‫ؾ‬ͷ૚Ͱ‫͜ى‬Δ۶ંΛӨ͞Εͨө૾͕өΒͳ͘ͳΓɼՄࢹޫ LED ϚʔΧʔޫֶతʹͳ͘͢͜ͱͰɼਫதʹ͓͍ͯ΋ۭ‫ؾ‬தͱಉ͡ͷ҆ఆͨ͠௥੻͕ՄೳͱͳΔɽ͜ͷө૾ͷःஅ͸ 2 ͭΑ͏ʹ࿪Έ΍֦େͷͳ͍ө૾ͷࡱӨΛՄೳʹ͢Δ [2]ɽͷճసํ޲ͷҟͳΔԁภޫ൘ʹΑͬͯ‫͜͞ى‬ΕΔःޫਤ 3 (A) ͸ΧϝϥΛද໘͕ฏΒͳ๷ਫϋ΢δϯάʹ

ʹΑΔ΋ͷͰ͋ΔɽϢʔβʔ͕૷ண͢ΔਫӭΩϟοϓೖΕͯɼਫத͔ΒάϦουΛදࣔͨ͠ϓʔϧଆ໘Λʹ͍ͭͨՄࢹޫ LED ϚʔΧʔ͔Βͷޫ͸ภޫ͞ΕͯࡱӨͨ͠ࡍͷࣸਅͰ͋Δɽਤ 3 (B) ͸ޫֶతʹਫͱ͍ͳ͍ɽͦͷͨΊɼΧϝϥʹ͸҉͍എ‫ܠ‬தʹ໌Δ͘ൃۭ‫ؒؾ‬ͷ۶ં཰ͷҧ͍Λ‫ٵ‬ऩ͢ΔΑ͏ʹઃ‫͞ܭ‬Εͨޫ͢ΔϚʔΧʔ͕ଘࡏ͍ͯ͠ΔΑ͏ʹ‫͑ݟ‬Δɽ݁Ռͱ൒‫ܕٿ‬๷ਫϋ΢δϯάʢTELESIN T03 Dome Portʣͯ͠ɼ͜ͷߏ੒͸ɼҐஔ‫ܭ‬ଌ༻ͷιϑτ΢ΣΞ͕എ‫ܠ‬ʹΧϝϥ (GoPro Hero 4) ΛೖΕͯɼਫத͔Βಉ͡ଆө૾ΛϚʔΧʔͱͯ͠‫ޡ‬ೝࣝͯ͠͠·͏໰୊Λղܾ໘ΛࡱӨͨ͠ࡍͷࣸਅͰ͋Δɽਤ 3 (A) ্Ͱ͸ɼਫ

͢Δ͜ͱ͕Ͱ͖Δ (ਤ 2)ɽ

ʹΑΔ֦େͷӨ‫ʹڹ‬ΑΓࢹ໺͕‫͍ͯͬͳ͘ڱ‬Δ͜ͱɽ

ਤ 2ʢAʣ͸ɼԁภޫʹΑΔө૾ͷःޫΛ༻͍ͣʹ

ਤ 3 (A) ԼͰ͸࿪‫ۂ‬ऩ͕ࠩൃੜ͍ͯ͠Δ͜ͱ͕֬ೝ

Մࢹޫ LED ϚʔΧʔͷ‫ݕ‬ग़ΛࢼΈͨࡍͷ݁Ռɼਤ 2

Ͱ͖Δɽ͔͠͠ɼਤ 3 (B) Ͱ͸͜ΕΒͷӨ‫·͕͋ڹ‬ʢBʣ͸ө૾͕ःޫ͠ɼ
ʢAʣͱಉҰͷ‫͍͓ͯʹڥ؀‬ϚʔΓ‫ݟ‬ΒΕͳ͍ɽΧʔͷ‫ݕ‬ग़Λߦͳͬͨࡍͷ݁ՌͰ͋Δɽ

ը૾ॲཧʹΑͬͯ࿪‫ۂ‬ऩࠩΛิਖ਼͢Δख๏΋ଘࡏ
͢Δ [10]ɽ͔͠͠ɼ͜ͷิਖ਼ख๏ΛదԠͨ͠৔߹ɼਫ

4. 3 ਫதࡱӨ࣌ʹൃੜ͢Δ࿪‫ۂ‬ऩࠩͷิਖ਼ʹΑΔө૾ͷ֦େʢਤ 3 (A) ্ʣʹΑͬͯɼΧϝϥਫதʹͯޫֶࣜҐஔ‫ܭ‬ଌख๏Λ࢖༻͢Δ৔߹ɼਫத

ͷࢹ໺͕‫͏·ͯͬ͠·ڱ‬໰୊͸ղܾ͞Εͳ͍ɽෳ਺ͷͰө૾ΛࡱӨͨ͠ࡍʹൃੜ͢Δࢳ‫ܕ͖ר‬࿪‫ۂ‬ऩࠩͷΧϝϥΛ༻͍ͯϚʔΧʔͷҐஔ‫ܭ‬ଌΛߦ͏͜ͱͰϔοิਖ਼͕ඞཁʹͳΔɽࢳ‫ܕ͖ר‬࿪‫ۂ‬ऩࠩͱ͸ɼ๬ԕϨϯυτϥοΩϯά࣮‫͢ݱ‬Δ৔߹ɼΧϝϥ͕ࡱӨՄೳͳൣζʹ‫ݟ‬ΒΕΔΑ͏ͳத৺ʹ޲͔ͬͯ‫ؙ‬ΈΛଳͼͨө૾ғ͸޿͍ํ͕޷·͍͠ɽͦͷͨΊຊ‫Ͱڀݚ‬͸ɼΧϝϥͷΏ͕ΈͷࣄͰ͋ΔɽΧϝϥ΍໨Λ௨ͯ͠ਫதͷөͷࢹ໺͕‫͏·ͯͬ͠ͳ͘ڱ‬໰୊΋ಉ࣌ʹղܾ͢Δ൒‫ٿ‬૾Λ‫ͨݟ‬৔߹ʹ͸ɼۭ‫ͱؾ‬ਫͷ۶ં཰ͷҧ͍͔Β͜‫ܕ‬ͷϨϯζΛ࢖༻͢Δ͜ͱͱͨ͠ɽ

ͷ࿪‫ۂ‬ऩ͕ࠩ‫ݱ‬ΕΔɽਫதࡱӨ࣌ʹ࿪‫ۂ‬ऩ͕ࠩൃੜ

ਖ਼֬ʹϚʔΧʔͷҐஔΛ‫ܭ‬ଌ͢ΔͨΊʹ͸ɼΧϝϥ͢Δͷ͸ɼΧϝϥ಺ͷۭ‫ͱؾ‬Ϩϯζ֎෦ͷਫͱͷؒͷϨϯζʹΑΔ࿪‫ۂ‬ऩࠩͷิਖ਼΋ඞཁͱͳΔɽϨϯζVol. 29 No. 1 Feb. 201283ͷ࿪‫ۂ‬ऩࠩͷิਖ਼ํ๏ͱͯ͠ɼZhang ͷํ๏͕޿͘

܏͚ͨࡍʹɼө૾͕҉͘ͳͬͨΓ໌Δ͘ͳͬͨΓͯ͠༻͍ΒΕΔ [21]ɽຊ࿦จதͷ‫Ͱূݕ‬͸ɼGoPro ͷ޿֯͠·͏ͱ͍͏໰୊͕ൃੜ͢Δɽෆཁͳ໌҉มԽ͸ө૾ϨϯζʹΑΔө૾ͷ࿪ΈΛɼਖ਼֬ͳΧϝϥύϥϝʔͷΤϯλʔςΠϝϯτੑΛ௿Լ͢Δ‫ڪ‬Ε͕͋Δɽ

λʔΛ༻͍ͯิਖ਼͕Մೳͳެࣜιϑτ΢ΣΞͰ͋Δ
GoProStudio†1 ʹΑͬͯิਖ਼ͨ͠ɽ

6 ө૾ఏ‫ؔ͢ʹڙ‬Δ໰୊ͷղܾํ๏
6. 1 өΓࠐΈͷܰ‫ݮ‬

5 ө૾ఏ‫ؔ͢ʹڙ‬Δ໰୊ө૾ͷөΓࠐΈ͸ɼϢʔβʔ͕૷ண͢ΔΞΫςΟ

5. 1 ϓʔϧଆ໘΍ਫ໘ʹ‫͜ى‬Δө૾ͷࣸΓࠐΈϒγϟολʔํࣜͷ 3D ‫΁ڸ؟‬ͷ 1/4 ೾௕൘ͷઃஔʹശ‫ʹܕ‬εΫϦʔϯ͕ઃஔ͞Εͨ CAVE ‫ڥ؀‬ͷ৔߹ɼΑͬͯ๷ࢭͰ͖Δɽ1/4 ೾௕൘ͱ͸ɼ௚ઢภޫ൘ͷ֤εΫϦʔϯ΍ਫ໘ʹผͷεΫϦʔϯʹදࣔ͞ΕͨޫֶಛੑΛԁภޫ൘΁ͱม͑ΔޫֶϑΟϧλͰ͋Δɽө૾͕ࣸΓࠐΜͰ͠·͏ɽCAVE ͸ɼϢʔβʔͷ໨

1/4 ೾௕൘ͷ஗Ԇ͕࣠ภޫ൘ͷภޫ࣠ʹରͯ͠ −45◦ͷҐஔͱ֤໘ͷҐஔؔ܎Λߟྀͯ͠ө૾Λద੾ʹ࿪ʹͳΔΑ͏ʹషΓ෇͚Δͱɼͦͷภޫ൘͸ӈԁภޫ൘ΊΔ͜ͱͰɼCG ʹΑΔԾ૝తͳੈքʹຊ౰ʹೖΓࠐͱಉ͡ޫֶಛੑΛ࣋ͭΑ͏ʹͳΔɽ·ͨɼ45◦ ͰషΓΜͩΑ͏ͳମ‫ݧ‬ΛϢʔβʔʹఏ‫͢ڙ‬Δɽ͔͠͠ɼ൓ࣹ

෇͚Δͱɼࠨԁภޫ൘ͱಉ͡ޫֶಛੑΛ࣋ͭΑ͏ʹʹΑΓࣸΓࠐΜͩө૾͸ద੾ͳҐஔؔ܎Λ‫ʹݩ‬ϨϯͳΔɽຊ‫Ͱڀݚ‬͸ɼϢʔβʔ͕૷ண͢Δ 3D ‫ڸ؟‬ΛɼμϦϯά͞Εͨ΋ͷͰ͸ͳ͍ͨΊɼ͜ΕΒͷө૾Λϓʔϧ಺෦ʹுΒΕͨԁภޫ൘ͱಉ͡ճసํ޲ͷԁϢʔβʔ͕ࢹೝͰ͖Δ৔߹ʹ͸຅ೖ‫͕ײ‬௿Լͯ͠͠

ภޫ൘ͱಉ͡ޫֶಛੑΛ࣋ͭΑ͏ʹมߋ͢Δ͜ͱͰ

·͏͜ͱ͕ߟ͑ΒΕΔɽөΓࠐΈΛܰ‫ͨ͠ݮ‬ɽҎԼʹ‫ݪ‬ཧΛઆ໌͢Δɽϓʔϧ಺෦ʹઃஔ͞Εͨԁภޫ൘͕ӈԁภޫ൘Ͱ

5. 2 ಄෦Λ܏͚ͨࡍʹൃੜ͢Δө૾ͷ໌౓มԽ

͋Δ৔߹ɼϓϩδΣΫλʔͰ౤Ө͞Εͨө૾͸ӈԁภϢʔβʔ΁ཱମө૾Λఏ‫͢ڙ‬ΔͨΊʹ͸ɼӈ໨ͱࠨޫ͞Εͨޫͱͯ͠Ϣʔβʔʹಧ͘ɽϢʔβʔ͸ӈԁภ໨ʹͦΕͧΕʹҟͳΔө૾Λಧ͚Δඞཁ͕͋Δɽө૾ޫ൘ͱಉ༷ͷޫֶಛੑΛ࣋ͭ 3D ϝΨωΛ૷ண͍ͯ͠

ΛͦΕͧΕͷ໨ʹಧ͚Δ࢓૊Έͱͯ͠ɼӷথʹΑΔө

ΔͨΊɼःޫ͸ൃੜͤͣɼ౤Ө͞Εͨө૾Λ઱໌ʹ‫ݟ‬૾ͷःஅ (ΞΫςΟϒγϟολʔࣜ) ͔ԁภޫʹΑΔ

Δ͜ͱ͕Ͱ͖Δɽԁภޫ͕൓ࣹͨ͠৔߹ɼͦͷճసํө૾ͷःஅ (ภޫࣜ) ͕Ұൠతʹ༻͍ΒΕΔɽຊ‫ڀݚ‬޲͕൓స͢Δ͜ͱ͕஌ΒΕ͍ͯΔ [23]ɽͦͷͨΊɼଞͰ͸ɼϓʔϧதͷϢʔβʔ΁ཱମө૾Λఏ‫͢ڙ‬ΔͨΊͷ໘ʹ൓ࣹͨ͠ө૾͸ɼӈԁภޫ͞ΕͨޫͰ͸ͳ͘ʹɼΞΫςΟϒγϟολʔํࣜͷ 3D ‫ڸ؟‬Λਫӭΰʔࠨԁภޫ͞Εͨޫͱͯ͠Ϣʔβʔ΁ಧ͘ɽ͜ͷߏ੒ʹάϧʹ૊ΈࠐΜͩ΋ͷΛ࢖༻͢Δ͜ͱͱͨ͠ɽ

͸ɼଞͷ໘΍ਫ໘ʹͯൃੜ͢Δө૾ͷࣸΓࠐΈͷܰ‫ݮ‬ຊ‫Ͱڀݚ‬ఏҊ͢ΔҐஔ‫ܭ‬ଌख๏ͱཱମө૾ͷఏ‫ڙ‬Λ͕‫ظ‬଴͞ΕΔ (ਤ 4)ɽ

ཱ྆͢ΔͨΊʹ͸ɼԁภޫ൘ͱΞΫςΟϒγϟολʔํࣜͷ 3D ‫ڸ؟‬ͷ૊Έ߹ΘͤʹΑͬͯ‫͜ى‬Δ໰୊Λղ

6. 2 ө૾ͷ໌҉มԽͷܰ‫ݮ‬ܾ͢Δඞཁ͕͋ΔɽΞΫςΟϒγϟολʔํࣜͷ 3D

Ϣʔβʔ͕಄Λ܏͚ͨࡍͷө૾ͷ໌౓ͷมԽʹΑ‫ʹڸ؟‬͸ɼӷথγϟολʔ͕࢖ΘΕ͍ͯΔɽӷথγϟοΔ໰୊΋ɼ1/4 ೾௕൘ͷ 3D ‫΁ڸ؟‬ͷઃஔʹΑͬͯಉλʔ͸ 2 ຕͷ௚ઢภޫ൘ͷؒʹɼӷথ૚Λ‫ڬ‬Ή͜ͱ࣌ʹղܾ͞ΕΔɽਤ 5(A) ͸ΞΫςΟϒγϟολʔํʹΑͬͯߏ੒͞Ε͍ͯΔɽͭ·Γɼ͜ͷ 3D ϝΨω͸

ࣜͷ 3D ϝΨωΛ௨ͯ͠‫ͨݟ‬ө૾ɼਤ 5(B) ͸ޫֶతޫֶతʹ௚ઢภޫ൘ͱಉ͡ಛੑΛ࣋ͭɽ௚ઢภޫ൘Λʹӈԁภޫ൘ͱͳͬͨಉ͡ 3D ϝΨωΛ௨ͯ͠‫ͨݟ‬ө௨ͯ͠ԁภޫΛ‫؍‬ଌ͢Δ৔߹ɼ͓‫͍ޓ‬ͷ֯౓ʹΑͬͯ૾ͷྫͰ͋Δɽ3D ϝΨω (G15-DLP) ͸ɼภޫ͕࣠

ःޫ౓͕มԽ͢ΔɽͦͷͨΊɼϢʔβʔ͕಄ͷ֯౓Λॎํ޲ (ֺ͔Β಄෦ͷํ޲) Ͱ͋ͬͨͨΊɼ1/4 ೾௕†1 GoProStudio:ɹ
https://gopro.com/help/GoPro-Studio)൘ͷ஗Ԇ͕࣠ −45◦ ͰॏͳΔΑ͏ʹషΓ෇͚ͨɽϢʔβʔ͕૷ண͢Δ 3D ‫ڸ؟‬͸ɼϓʔϧ಺໘ʹઃஔ͞Εͨ

84ίϯϐϡʔλιϑτ΢ΣΞ

ԁภޫ൘ͱಉ͡ճసํ޲ͷԁภޫ൘ͱͯ͠‫ػ‬ೳ͢Δɽ
ಉ͡ճసํ޲ͷԁภޫ൘ͷ૊Έ߹Θͤͷ৔߹ɼ͓‫͍ޓ‬

隣の面への映像の映り込み

遮光された
映り込み

右円偏光板

ͷ֯౓ʹΑΒͣৗʹޫΛಁա͢ΔͨΊɼϢʔβͷ಄෦ͷ܏͖ʹԠͨ͡ө૾ͷ໌౓มԽͷ໰୊͸ղܾ͞ΕΔɽ

7 γεςϜߏ੒
7. 1 શपғεΫϦʔϯͷͨΊͷߏ੒

ਤ4ԁภޫ൘ʹΑΔө૾ͷөΓࠐΈͷ௿‫ݮ‬

ਤ 6 ʹ AquaCAVE ͷγεςϜߏ੒ʹ͍ͭͯ·ͱΊΔɽຊ‫Ͱڀݚ‬͸ɼCAVE Λ 3D ө૾ͷ౤Ө‫ػ‬ೳΛ࣋ͭ

6 ୆ͷ୹য఺ϓϩδΣΫλʔ (RICOH PJ WX4141)
ͱϓʔϧͷఈ໘ͱଆ໘ʹషΓ෇͚ͨϦΞϓϩδΣΫ(A) アクティブシャッター方式の3Dメガネを通して見た映像γϣϯγʔτʹΑ࣮ͬͯ‫ͨ͠ݱ‬ɽϢʔβʔ͸ΰʔάϧʹ૊Έࠐ·ΕͨΞΫςΟϒγϟολʔํࣜͷ 3D ϝΨωΛ૷ண͢Δ͜ͱͰཱମө૾Λ‫ݟ‬Δ͜ͱ͕Ͱ͖ΔΑ͏ʹͳΔɽө૾͸ MacPro Λ༻͍ͯϨϯμϦϯάͨ͠ɽ(B) 1/4波長板を貼り付けた上図と同じ3Dメガネを通して見た映像ਤ5Ϣʔβʔʹ໌ྎͳࢹքΛఏ‫͢ڙ‬ΔͨΊͷߏ੒

7. 2 ϔουτϥοΩϯάͷͨΊͷߏ੒ϓʔϧ಺ʹ͸ 2 ୆Ҏ্ͷ๷ਫՃ޻͞ΕͨΧϝϥΛઃ
ஔ͢Δɽෳ਺ͷΧϝϥͰϢʔβʔͷਫӭΩϟοϓʹͭ

ཁͱͳΔɽຊ‫ͨ͠༻࢖ʹূݕ͍͓ͯʹڀݚ‬൒‫ܕٿ‬๷ਫ͍ͨՄࢹޫ LED ϚʔΧʔ‫ݕ‬ग़͢Δ͜ͱͰɼࡾ֯ଌྔ

ϋ΢δϯά͸ɼGoPro ͷઃ‫ܭ‬৘ใʹ߹Θͤͨઃ‫͞ܭ‬Εͨ൒‫ܕٿ‬ͷϨϯζΛ࣋ͭ †2 ɽʹΑΓϚʔΧʔͷ 3 ࣍‫ݩ‬ҐஔΛࢉग़͢Δ͜ͱ͕Ͱ͖
Δɽ·ͨɼ3 ͭҎ্ͷ͓‫͍ޓ‬ͷҐஔؔ܎͕‫ط‬஌ͷϚʔΧʔΛೝࣝ͢Δ͜ͱͰɼϢʔβʔ಄ͷҐஔͱ࢟੎͕‫ܭ‬

8 ධՁଌՄೳͱͳΔɽϢʔβʔͷ໨ͷ 3 ࣍‫ݩ‬Ґஔ͸಄෦Ґຊ‫Ͱڀݚ‬͸पғʹө૾͕දࣔ͞Εͨਫதʹ͓͍ͯɼஔ࢟੎͔ΒਪଌͰ͖ΔɽՄࢹޫ LED ͷ҆ఆͨ͠௥੻Λ࣮‫͢ݱ‬ΔͨΊʹɼຊΧϝϥʹΑΔՄࢹޫ LED ϚʔΧʔͷ҆ఆͨ͠௥੻Λ
Մೳͱ͢Δख๏ΛఏҊͨ͠ɽ‫Ͱڀݚ‬͸ϓʔϧ಺෦ͱϓʔϧ಺෦ʹઃஔ͞ΕͨΧϝϥ‫ط‬ଘͷ‫ʹڀݚ‬ΑΓɼෳ਺ͷΧϝϥʹΑΓ‫ܧ‬ଓతʹͷϨϯζʹԁภޫ൘Λઃஔͨ͠ɽຊ‫ͨ͠૷࣮Ͱڀݚ‬ϓϚʔΧʔΛೝࣝ͢Δ͜ͱ͕Ͱ͖Ε͹ɼͦͷ 3 ࣍‫ݩ‬ҐϩτλΠϓʹ͓͍ͯ͸ɼϓʔϧ಺໘ʹ͸ӈԁภޫ൘ɼஔ͕‫ܭ‬ଌՄೳͰ͋Δ͜ͱ͕໌Β͔ʹ͞Ε͍ͯΔɽՃ͑Χϝϥʹ͸ࠨԁภޫ൘Λ༻͍ͨɽͯɼਫதࡱӨ࣌ʹൃੜ͢Δ࿪‫ۂ‬ऩࠩ͸ɼ൒‫ܕٿ‬ͷϨϯϢʔβʔ͕૷ண͢ΔΞΫςΟϒγϟολʔํࣜͷζʹΑͬͯਖ਼֬ʹิਖ਼ՄೳͰΔ͜ͱ͕Θ͔͍ͬͯΔɽ

3D ϝΨωͷ֎ଆʹ͸ 1/4 ೾௕൘ΛషΓ෇͚ͨɽ͜ͷఏҊख๏Λ‫ط‬ଘͷҐஔ‫ܭ‬ଌख๏ͱ૊Έ߹ΘͤΔ͜ͱߏ੒͸ɼΞΫςΟϒγϟολʔํࣜͷ 3D ‫ڸ؟‬Λߏ੒Ͱɼਫத຅ೖ‫ ܕ‬VR ‫͚͓ʹڥ؀‬ΔϔουτϥοΩϯ

͢Δ௚ઢภޫ൘͕Ҿ͖‫͢͜ى‬ɼ಄෦࢟੎ʹԠͨ͡ө૾ά͕࣮‫ݱ‬ՄೳੑͱͳΔͱਪଌ͞ΕΔɽ

ͷ໌౓มԽΛ๷͙͜ͱ͕Ͱ͖Δɽ

ϔουτϥοΩϯάͷ࣮‫ݱ‬ՄೳੑΛࣔͨ͢Ίʹ͸ɼϔουτϥοΩϯά༻ͷΧϝϥ͸ɼਫதࡱӨ࣌ͷ࿪ఏҊख๏ʹΑͬͯΧϝϥ͕‫ܧ‬ଓతʹϚʔΧʔΛೝࣝ͢‫ۂ‬ऩࠩΛิਖ਼͢ΔͨΊʹ൒‫ܕٿ‬Ϩϯζͷ͍ͭͨ๷ਫ

Δ͜ͱ͕Ͱ͖Δ͜ͱΛ֬ೝ͢Δඞཁ͕͋ΔɽຊষͰέʔεʹೖΕΔɽ࿪‫ۂ‬ऩࠩΛ‫׬‬શʹิਖ਼͢ΔͨΊʹ͸ɼԁภޫʹΑΔःޫ͕ɼՄࢹޫ LED ϚʔΧʔͷ௥͸ɼͦΕͧΕͷΧϝϥͷϨϯζͷয఺‫཭ڑ‬΍ CMOSΠϝʔδηϯαʔͷҐஔʹ߹ΘͤͨϨϯζઃ‫͕ܭ‬ඞ

†2 Ұൠతʹ DomePort ͱ͍͏໊લͰࢢൢ͞Ε͍ͯΔ

Vol. 29 No. 1 Feb. 2012
可視光LEDマーカーが付いた水泳キャップ85
防水加工された
可視光LEDマーカー

半球型レンズ付きの防水ケースに入ったカメラ

円偏光板(プール内面)

3Dメガネ付きゴーグル(アクティブシャッター方式)

Eye
Position

水泳キャップ
3Dメガネ( 表面に1/4波長板)

リアプロジェク
ションシート(プール外面)

3Dプロジェクター

x 6 display cables

ਤ6

MacPro
水泳ゴーグルγεςϜߏ੒

੻ͷ҆ఆੑʹͲͷఔ౓ߩ‫͢ݙ‬Δ͔Λ‫ͨ͠ূݕ‬ɽ·ͨɼਤ 7 ʢAʣ͸ͦΕͧΕͷഎ‫Ͱ্ܠ‬ɼՄࢹޫ LED Ϛʔ൒‫ܕٿ‬๷ਫϋ΢δϯάͷ༗ޮੑΛ֬ೝͨ͠ɽ

Χʔ 1 ఺ͷ‫ݕ‬ग़Λ 20 ඵͷؒࢼΈͨࡍͷ݁ՌͰ͋Δɽදதͷ̋͸ɼϚʔΧʔͷΈΛೝࣝͰ͖ͨϑϨʔϜɼʷ

8. 1 ϚʔΧʔͷ‫ܧ‬ଓతͳೝࣝʹؔ͢Δ‫ূݕ‬͸എ‫ܠ‬ө૾ͷҰ෦΋ϚʔΧʔͱ‫ޡ‬ೝࣝͯ͠͠·ͬͨϑຊ‫Ͱڀݚ‬͸ɼఏҊख๏͕Ͳͷఔ౓Մࢹޫ LED ϚʔϨʔϜΛ͍ࣔͯ͠ΔɽఏҊख๏Λ༻͍ͳ͍৔߹ɼͲͷΧʔΛ௥੻͢Δࡍͷ‫ޡ‬ೝࣝͷ௿‫ʹݮ‬༗ޮͰ͋Δ͔Λഎ‫͍͓ͯʹܠ‬΋‫ܧ‬ଓతʹ҆ఆͨ͠ϚʔΧʔͷ‫ݕ‬ग़Λߦ‫ͨ͠ূݕ‬ɽ͏͜ͱ͸Ͱ͖ͳ͔ͬͨɽ͔͠͠ɼఏҊख๏ʹΑΔഎ‫ܠ‬‫ূݕ‬͸ɼఏҊख๏ʹΑΔө૾ͷःޫΛ༻͍ͳ͍৔

ө૾ͷःޫΛར༻ͨ͠৔߹ʹ͸ɼ͢΂ͯͷ‫͍͓ʹؒظ‬߹ɼͲͷఔ౓ͷՄࢹޫ LED ϚʔΧʔͷ‫ޡ‬ೝ͕ࣝൃੜ

ͯɼϚʔΧʔͷΈΛೝࣝ͠ଓ͚Δ͜ͱ͕Ͱ͖ͨɽਤ 7

͢Δ͔ௐࠪ͠ɼఏҊख๏Λ༻͍ͨ৔߹ͱൺֱ͢Δ͜ͱ͸ɼਤ 7 ʢAʣதʹࣔ͢ʢBʣɼ
ʢCʣͷ‫Ͳʹؒظ‬ͷΑʹΑͬͯߦͬͨɽҎԼʹ‫ํূݕ‬๏ͱ݁Ռʹ͍ͭͯड़΂͏ͳө૾͕දࣔ͞Ε͍͔ͯͨࣔͨ͠΋ͷͰ͋Δɽ‫ؒظ‬Δɽ·ͣɼAquaCAVE ͷΞϓϦέʔγϣϯͱͯ͠࢖(C) Ͱ͸ɼϚʔΧʔʹՃ͑ͯΠιΪϯνϟΫͷ৮खͷ༻͞ΕΔ͜ͱ͕૝ఆ͞ΕΔɼਫதͰࡱӨ͞Εͨ 3 छྨͷө૾Λ४උͨ͠ɽ†3 ·ͨɼ͜ΕΒͷө૾Λϓʔઌ୺ΛϚʔΧʔͱͯ͠‫ޡ‬ೝ͓ࣝͯ͠Γɼ‫( ؒظ‬C) Ͱϧʹ౤Өͨ͠ঢ়ଶͰɼϓʔϧ಺෦ʹઃஔ͞ΕͨՄࢹͱΕΔɽຊ‫Ͱূݕ‬͸ɼҐஔؔ܎͕‫ݻ‬ఆ͞Εͨ 3 ఺ͷՄޫ LED ϚʔΧʔͷΈΛ‫ܭ‬ଌ༻ͷιϑτ΢ΣΞ͕ೝࣝࢹޫϚʔΧʔΛɼΧϝϥʹΑͬͯಉ࣌ʹ‫ܧ‬ଓతʹೝࣝͰ͖ͨϑϨʔϜΛ 1 ඵ͝ͱʹ‫ه‬࿥ͨ͠ɽՄࢹޫϚʔ

͢Δ͜ͱ͕ՄೳͰ͋Δ͜ͱ΋֬ೝͨ͠ (ਤ 2)ɽ3 ఺ҎΧʔͷ‫ݕ‬ग़ʹ͸ɼBlobDetection ͱ‫ݺ‬͹ΕΔө૾த্ͷϚʔΧʔΛೝࣝͰ͖Δ৔߹ɼ‫ܭ‬ଌର৅ͷ 3 ࣍‫ݩ‬͔Β໌౓ͷߴ͍ϐΫηϧͷմΛ‫ݕ‬ग़͢Δ‫ػ‬ೳΛ΋ͭ
Processing ༻ͷιϑτ΢ΣΞϥΠϒϥϦΛ༻͍ͨ †4 ɽҐஔ͚ͩͰ͸ͳ࢟͘੎Λ‫ܭ‬ଌ͢Δ͜ͱ͕Ͱ͖Δɽ஫ҙ͸ւதͷαϯΰͷҰ෦Λ‫ޡ‬ೝ͍ࣝͯ͠Δ͜ͱ͕Έͯ఺ͱͯ͠ɼΧϝϥʹઃஔ͞Εͨԁภޫ൘ͱɼϓʔϧʹઃஔ͞Εͨԁภޫ൘ͷ֯౓͕ฏߦͰ͸ͳ͘ͳΔ΄Ͳɼ

†3 എ‫ ܠ‬1: ΠιΪϯνϟΫͱΫϚϊϛͷө૾ (ಈը 1
0:20-0:40) എ‫ ܠ‬2: ւதʹͯΧϥϑϧͳ‫͕ڕ‬ӭ͍Ͱ͍Δө૾ (ಈը 1 8:50-9:10) ɹഎ‫ ܠ‬3:΢ϛΨϝ͕Ώͬ͘Γӭ͍Ͱ͍Δө૾ (ಈը 2 5:00-5:10)ɽө૾͸ҎԼʹ͋͛Δಈը͔Βऔಘͨ͠ɽ ಈը 1 Tittle: Beautiful Undersea World - Coral Reefs, Clownfish And
Colorful Underwater Animals, Creater: Serey V,
License: CC. ಈը 2 Tittle: Underwater - Journey to the Red Sea Coral Reef, Creater:Roberto”Lope” Carrozza, License: CC.
†4 BlobDetection library:ө૾ͷःޫ౓͕Լ͕ͬͯ͠·͏͜ͱ͕Θ͔ͬͨɽͦͷͨΊɼෳ਺ͷΧϝϥΛ༻͍ͯՄࢹޫ LED ϚʔΧʔͷ‫ܭ‬ଌΛߦ͏ࡍʹ͸ͦΕͧΕͷԁภޫ൘Λɼϓʔϧʹઃஔ͞Εͨԁภޫ൘ͱฏߦʹ͢Δ͜ͱ͕޷·͍͠ɽ

http://www.v3ga.net/processing/BlobDetection/ίϯϐϡʔλιϑτ΢ΣΞ

86
背景の遮光なし
時間[秒]

背景の遮光あり

背景1 背景2 背景3時間[秒]背景1 背景2 背景3

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9 ٞ࿦ɾࠓ‫ޙ‬ͷ՝୊
9. 1 3 ࣍‫ݩ‬Ґஔɾ࢟੎‫ܭ‬ଌͷਫ਼౓ʹؔ͢Δ‫ূݕ‬ຊ‫Ͱڀݚ‬͸ɼՄࢹޫ LED ϚʔΧʔΛΧϝϥΛ༻(B) 背景1 期間(0:07‒0:09)ϚʔΧʔͷ‫ܧ‬ଓతͳೝ͕ࣝՄೳͰ͋Ε͹ɼ‫ط‬ଘख๏ͱͷ૊Έ߹ΘͤʹΑΓϚʔΧʔ͕షΓ෇͚ΒΕͨର৅ͷ

3 ࣍‫ݩ‬Ґஔɾ࢟੎͕‫ܭ‬ଌՄೳͰ͋Δͱਪଌ͞ΕΔɽ্(A) 遮光がある場合とない場合の誤認識の違いを時系列で示した表ਤ7͍ͯ‫ܧ‬ଓతʹೝࣝͰ͖Δ͜ͱΛ‫ʹূݕ‬ΑΓ֬ೝͨ͠ɽ(C) 背景1 期間(0:13‒0:20)‫طͨ͠ه‬ଘख๏ͷྫͱͯ͠͸ɼෳ਺ͷΧϝϥʹΑͬͯಉ̍ͭ͡ͷϚʔΧΛೝࣝ͢Δ͜ͱͰͦͷ 3 ࣍‫ݩ‬ҐஔϚʔΧʔͷ‫ޡ‬ೝࣝʹؔ͢Δൺֱ‫ূݕ‬Λ‫ܭ‬ଌ͢Δࡾ֯ଌྔ΍ɼ1 ͭͷΧϝϥʹΑͬͯ 3 ఺Ҏ্ͷϚʔΧʔΛҰ౓ʹೝࣝ͢Δ͜ͱͰϚʔΧʔ͕ઃஔ͞Εͨର৅ͷ 3 ࣍‫ݩ‬Ґஔͱ࢟੎Λ‫ܭ‬ଌՄೳͱ͢Δख
๏ͳͲ͕͋͛ΒΕΔɽਫதͰͷ࿪‫ۂ‬ऩࠩͷิਖ਼ʹ͸ɼ൒‫ܕٿ‬Ϩϯζ΍νΣοΫϘʔυΛ༻͍ͨਫதͰͷΧϝϥΩϟϦϒϨʔγϣϯͳͲΛ༻͍Δ͜ͱ͕Ͱ͖Δ [9]ɽຊ‫Ͱڀݚ‬͸ɼ̏ͭͷ LED ϚʔΧʔΛೝࣝͰ͖Ε͹

(A)



ਤ8



 

(B)

 



൒‫ܕٿ‬๷ਫϋ΢δϯάͷ༗ޮੑͷ֬ೝͦͷ 3 ࣍‫ݩ‬ҐஔΛ‫ܭ‬ଌͰ͖Δ͜ͱΛ֬ೝ͢ΔͨΊʹɼOpenTrack ͱ‫ݺ‬͹ΕΔιϑτ΢ΣΞΛ࢖༻ͨ͠ †6 . ɹ

OpenTrack ʹ͸ɼ3 ఺Ҏ্ͷϚʔΧʔ (पғʹൺ΂ͯ໌౓͕ߴ͍ըૉͷմ) ΛΧϝϥը૾͔Βࣝผ͠ɼͦͷ

8. 2 ൒‫ܕٿ‬๷ਫϋ΢δϯάͷ༗ޮੑͷ֬ೝ

3 ࣍‫ݩ‬ҐஔΛ‫ܭ‬ଌ͢Διϑτ΢ΣΞͰ͋Δ Freetrackਤ 8 ͸ਫͷೖͬͨਫ૧ʹઃஔ͞ΕͨΧϝϥ͔Βɼͱɼ‫ܭ‬ଌ͞Εͨ 3 ࣍‫ݩ‬ҐஔσʔλΛଞͷσόΠε͋νΣεϘʔυΛࡱӨͨ͠΋ͷͰ͋Δɽਤ 8ʢA) ͸൒‫ٿ‬Δ͍͸ΞϓϦέʔγϣϯʹ UDP Λ࢖ͬͯૹ৴͢Δι
ϑτ΢ΣΞ͕૊Έࠐ·Ε͍ͯΔ †7 ɽ຅ೖ‫ ܕ‬VR ‫ڥ؀‬‫ܕ‬๷ਫϋ΢δϯάΛ༻͍ͣʹࡱӨͨ͠΋ͷɼʢBʣ͸൒‫ܕٿ‬๷ਫϋ΢δϯάΛ༻͍ͯࡱӨͨ͠΋ͷͰ͋ΔɽࡱӨʹ͸ GoPro Hero 6 Λ༻͍ͨ †5 ɼ·ͨ൒‫ܕٿ‬๷ਫ(CAVE) Λߏ੒͢ΔͨΊͷιϑτ΢ΣΞʹ͸ɼ಄෦ͷϋ΢δϯάͱͯ͠ TELESIN GP-DMP-T03-YL Λ΢ΣΞ͔Βड৴͢Δ͜ͱ͕Ͱ͖Δ‫ػ‬ೳΛ࣮૷ͨ͠ɽ

༻͍ͨɽਫ૧ʹ͸Χϝϥ͔ΒνΣεϘʔυ·Ͱͷ‫཭ڑ‬ཱମө૾ΛϢʔβʔͷ಄෦Ґஔʹ߹Θͤͯఏ‫͢ڙ‬͕ 25cm ʹͳΔ΋ͷΛ࢖༻ͨ͠ɽνΣεϘʔυ͸ A4

Δ͜ͱͰ VR ‫ڥ؀‬Λ࣮‫͢ݱ‬Δ CAVE ͕ద੾ʹ࣮૷͞αΠζʹେ͖͞ʹҹ࡮ͨ͠ɽͦΕͧΕͷࣸਅ͸ಉ͡৔Ε͍ͯΔ͜ͱͷ֬ೝ͸ɼϓʔϧ಺ͷ͋Δ೚ҙͷ 3 ࣍ॴ͔ΒࡱӨͨ͠ɽਤ 8 ʢBʣ͔Β͸൒‫ܕٿ‬๷ਫϋ΢δ‫ݩ‬Ґஔʹ಄෦͕͋Δࡍͷཱମө૾Λදࣔ͠ɼͦͷҐϯά͕࿪‫ۂ‬ऩࠩΛେ෯ʹิਖ਼͍ͯ͠Δ͜ͱ͕‫ͯݟ‬औஔ͔Βཱମө૾Λ‫͢࡯؍‬Δ͜ͱʹΑͬͯߦͬͨɽ൑அ

ΕΔɽࢢൢ͞Ε͍ͯΔ൒‫ܕٿ‬๷ਫϋ΢δϯάΛ༻͍ͨ‫ج‬४ͱͯ͠ɼCAVE ͕ਖ਼֬ʹ࣮૷͞Ε͍ͯΕ͹ɼVRิਖ਼͕ɼͲͷఔ౓ਫதͰͷ 3 ࣍‫ݩ‬Ґஔ‫ܭ‬ଌʹ༗ޮͰۭؒதͷ๮ͷΑ͏ͳ௕ࡉ͍࢛֯பঢ়ͷάϥϑΟοΫε

͋Δ͔ࠓ‫͞ޙ‬ΒͳΔ‫͕ূݕ‬ඞཁͱ͞ΕΔɽΛϓʔϧ಺ͷద੾ͳ 3 ࣍‫ݩ‬Ґஔ͔Βө૾Λ‫؍‬ଌ͢Δ†5 GoPro hero 5 Ҏ߱ͷόʔδϣϯʹ͸ɼϨϯζ࿪ΈΛࡱӨ࣌ʹΧϝϥ಺Ͱิਖ਼͢Δ Linear FOV ͱ‫ݺ‬͹Ε
Δ‫ػ‬ೳ͕౥ࡌ͞Ε͓ͯΓɼຊ‫Ͱূݕ‬͸͜ͷ‫ػ‬ೳΛ༻͍ͨɽ

3 ࣍‫ݩ‬ҐஔͷσʔλΛϔουτϥοΩϯά༻ͷιϑτ†6 opentrack:
https://github.com/opentrack/opentrack†7 FreeTrack:
http://www.free-track.net/

Vol. 29 No. 1 Feb. 2012ͱ͖ɼεΫϦʔϯ֤໘Λ·͍ͨͰදࣔ͞ΕΔର৅ͷά

87

背面

前面

ϥϑΟοΫε͕ંΕ‫͑ݟʹ͙ͬ͢·ͣ͑ݟ͕ͯͬۂ‬Δ
͜ͱ࢖༻ͨ͠ɽϥϯμϜʹબ୒ͨ͠ෳ਺ͷ 3 ࣍‫ݩ‬Ґஔ͔Βө૾ͷ‫؍‬ଌΛߦ͍ɼCAVE ͕ਖ਼֬ʹ࣮૷͞Ε

実験参加者の頭の位置

(A)





͍ͯΔ͜ͱΛ͔֬Ίͨɽࠓ‫ޙ‬ͷ՝୊ͱͯ͠ɼ‫ܭ‬ଌର৅ͷ 3 ࣍‫ݩ‬Ґஔ࢟੎ͷਤ9(B) CAVE







ਫʹΑΔ࿪‫ۂ‬ऩཱ͕ࠩମө૾ʹ༩͑ΔӨ‫ڹ‬ͷ‫ূݕ‬‫ܭ‬ଌਫ਼౓΍஗ԆͳͲΛௐ΂ɼͦΕΒ͕Ϣʔβʔʹ຅ೖతͳ VR ‫ڥ؀‬Λఏ‫͢ڙ‬ΔͨΊʹे෼Ͱ͋Δ͔Ͳ͏͔ΞϥΠϒϥϦͰ͋Δ Libgls Λ༻͍ͨ †8 ɽ྆໨ؒͷ‫ڑ‬Λ‫͢ূݕ‬Δ͜ͱ͕͋Δɽ‫ܭ‬ଌൣғ΍ਫ਼౓ʹӨ‫ڹ‬༩͑Δ཭͸ 10cm ʹઃఆͨ͠ɽௐࠪͷ݁Ռɼ͢΂ͯͷ࣮‫ࢀݧ‬Մೳੑ͕͋Δ߲໨ͱͯ͠ɼਫʹΑΔՄࢹޫͷ೾௕͝ͱՃऀ͔ΒɼͦΕͧΕͷάϥϑΟοΫεཱ͕ମతʹ‫͑ݟ‬ͷ‫ٵ‬ऩ཰ͷҧ͍΍ɼεΫϦʔϯͱΧϝϥ্ͷภޫ൘ͷ͍ͯΔ (Ԟߦ͖͕͋ΔΑ͏ʹ‫͡ײ‬Δ) ͱͷίϝϯτ͕֯౓ͷ͕ࠩେ͖͘ͳͬͨࡍʹ‫ݟ‬ΒΕΔःޫੑೳͷ௿ԼಘΒΕͨɽʹΑΔΧϝϥͷઃஔ֯౓ͷ੍‫͕͛͋Ͳͳݶ‬ΒΕΔɽ࣍ʹɼͦΕΒͷάϥϑΟοΫεΛҰఆͷεϐʔυͰԞ͔Βखલͱࢹ໺֎ࠨଆ͔Βӈଆͷ 2 छྨͷํ޲ʹ

9. 2 ࿪‫ۂ‬ऩཱ͕ࠩମө૾ʹ༩͑ΔӨ‫ڹ‬Ұ௚ઢʹҠಈͤͯ͞ɼάϥϑΟοΫε͕ͲͷΑ͏ʹҠਫͱۭ‫ؾ‬ͷ۶ં཰ͷҧ͍ʹΑͬͯൃੜ͢Δө૾ͷಈ͍ͯ͠Δ͔൑அͯ͠΋Β͏࣮‫ݧ‬Λߦͬͨɽ݁Ռͱ͠

࿪Έ͕ɼϢʔβʔ΁ͷਖ਼֬ͳཱମө૾ͷఏ‫ʹڙ‬Ө‫ڹ‬ͯɼԞ͔ΒखલʹάϥϑΟοΫε͕Ҡಈ͢Δࡍʹ͸͢Λ༩͑ΔՄೳੑ͕ߟ͑ΒΕΔɽຊ‫Ͱڀݚ‬͸ɼӨ‫ڹ‬ͷ༗΂ͯͷ࣮‫ࢀݧ‬Ճऀ͕Ҡಈํ޲Λਖ਼֬ʹ‫͍ݴ‬౰ͯΔ͜ແΛௐ΂ΔͨΊʹ 4 ਓͷ࣮‫ࢀݧ‬ՃऀʹҰਓͣͭɼਫ

ͱ͕Ͱ͖ͨɽ͔͠͠ɼࢹ໺֎ࠨ͔Βӈଆ΁άϥϑΟο

ͷೖͬͨϓʔϧഎ‫͔ޙ‬Βϓʔϧதʹදࣔ͞ΕΔཱମ

ΫεΛҠಈͤͨ͞ࡍʹ͸ɼࠨ͔Βӈଆ΁࣮‫ࢀݧ‬Ճऀө૾Λ‫ͯ͠࡯؍‬΋Β͍ίϝϯτΛಘͨɽ‫ূݕ‬͸ɼϔοΛத৺ʹԁΛඳ͘Α͏ʹճ͍ͬͯΔΑ͏ʹ‫͑ݟ‬ΔɼευτϥοΩϯάʹΑͬͯ‫ܭ‬ଌ͞ΕͨϢʔβʔͷ಄෦Ґϐʔυ͕ҰఆͰ͸ͳ͍Α͏ʹ‫͑ݟ‬ΔͳͲͷίϝϯτ

ஔ͕ɼϓʔϧͷഎ‫ޙ‬ͷΞΫϦϧ൘ͷද໘ͷத৺Ͱ͋Δ΋ಘΒΕͨɽ͓ͦΒ͘ɼ͜ͷ‫ޡ‬ೝࣝͷ‫ݪ‬Ҽ͸ɼࢹ໺ͷࡍʹදࣔ͞ΕΔཱମө૾Λ CAVE ಺ʹදࣔ͠ɼ࣮ࡍ

୺ʹͳΔ΄Ͳܹ͘͠ͳΔ࿪‫ۂ‬ऩࠩͷӨ‫ʹڹ‬ΑΔ΋ͷʹ࣮‫ࢀݧ‬ՃऀʹͦͷҐஔʹ಄Λஔ͍ͯө૾Λ‫͠࡯؍‬

Ͱ͋Δͱਪଌ͞ΕΔɽ

ͯ΋Β͏͜ͱʹΑͬͯߦͬͨɽਤ 9(A) ͸࣮‫ࢀݧ‬Ճऀ͜ΕΒͷ࣮‫ݧ‬ͷ݁Ռ͔Βɼ࿪‫ۂ‬ऩࠩ͸ CAVE ͷ࣮ͷ಄ͷҐஔͱϓʔϧͷҐஔؔ܎ɼ
ʢBʣ͸࣮‫ࢀݧ‬Ճऀ͕‫ʹݱ‬ඞཁͳ຅ೖతͳཱମө૾ͷఏ‫ʹڙ‬Ө‫ڹ‬Λ༩͑Δ‫؍‬ଌ͢Δཱମө૾ͷྫΛ͍ࣔͯ͠Δɽ

Մೳੑ͕͋Δ͜ͱ͕Θ͔Δɽ͔͠͠ɼ࿪‫ۂ‬ऩࠩ͸ε࿪‫ۂ‬ऩࠩͷӨ‫ڹ‬͸ࢹ໺ͷத৺෇ۙʹ͓͍ͯ࠷΋গΩϡʔόμΠϏϯάͳͲ࣮ࡍʹਫதͰͷΞΫςΟϏ

ͳ͘ɼ֎ଆʹߦ͘΄Ͳʹ‫ͳ͘ڧ‬Δ͜ͱ͕༧ଌ͞ΕΔɽ

ςΟΛߦ͏ࡍʹ΋ൃੜ͢Δ‫ݱ‬৅Ͱ͋Δ͜ͱ͔ΒɼϢʔຊ‫Ͱূݕ‬͸·ͣɼࢹ໺ͷத৺෇ۙʹཱମө૾͕දࣔ͞

βʔ͕‫ݟ‬Δө૾ʹൃੜ͢Δ࿪‫ۂ‬ऩࠩͷิਖ਼͸ඞཁ͸Εͨࡍʹɼ࣮‫ࢀݧ‬Ճऀཱ͕ମө૾ͷԞߦ͖ΛೝࣝͰແ͘ɼิਖ਼ΛߦΘͳ͍ํ͕Ή͠Ζ࣮ࡍͷ‫ڥ؀‬Λద੾ʹ͖Δ͔ௐ΂ͨɽ͜ͷ‫Ͱূݕ‬͸ϓʔϧલ໘ʹෳ਺‫ݸ‬ͷ࠶‫͖Ͱݱ‬ΔՄೳੑ΋ଘࡏ͢ΔɽͦͷͨΊɼࠓ‫ޙ‬ɼਫʹ௚ํମͷ 3D άϥϑΟοΫεΛදࣔ͠ɼਖ਼໘Λ޲͍ͨ

ΑΔ࿪‫ۂ‬ऩ͕ࠩ۩ମతʹͲͷΑ͏ͳӨ‫ڹ‬Λ CAVE ʹ(ϓʔϧ‫ޙ‬෦͔Βલ໘Λ‫ࢀݧ࣮ )͖޲ͨݟ‬Ճऀͷࢹ໺༩͑Δͷ͔ௐࠪ͠ɼඞཁʹԠͯ͜͡ͷӨ‫ڹ‬Λิਖ਼͢Δ

ͷத৺पลʹάϥϑΟοΫε͕ࣸΔΑ͏ʹͨ͠ɽཱମ

ख๏ΛߟҊ͢Δඞཁ͕͋Δɽө૾ͷදࣔʹ͸ɼOpenGL ͰϨϯμϦϯάͨ͠άϥϑΟοΫεΛΞΫςΟϒγϟολʔํࣜͷ 3D ϝΨωʹରԠཱͨ͠ମө૾ͱͯ͠ఏ‫ڙ‬Մೳʹ͢Διϑτ΢Σ

†8 Libgls:
http://libgls.sourceforge.net/
OpenGL:http://libgls.sourceforge.net/

88ίϯϐϡʔλιϑτ΢ΣΞ

9. 3 ਫத຅ೖ‫ ܕ‬VR ‫ڥ؀‬ͷ֦ுੑࢀ ߟ จ ‫ݙ‬ຊ‫Ͱڀݚ‬͸ɼAquaCAVE ͷ࣮‫ݱ‬Մೳੑͷௐࠪͷͨ

[ 1 ] Blum, L., Broll, W., and Müller, S.: Augmented
reality under water, SIGGRAPH’09: Posters,
ACM, 2009, pp. 97.
[ 2 ] Bruno, F., Bianco, G., Muzzupappa, M.,
Barone, S., and Razionale, A.: Experimentation of
structured light and stereo vision for underwater 3D
reconstruction, ISPRS Journal of Photogrammetry
and Remote Sensing, Vol. 66, No. 4(2011), pp. 508–
518.
[ 3 ] Cheng, L.-P., Lühne, P., Lopes, P., Sterz, C.,
and Baudisch, P.: Haptic turk: a motion platform
based on people, Proceedings of the 32nd annual
ACM conference on Human factors in computing
systems, ACM, 2014, pp. 3463–3472.
[ 4 ] Coker, D., Reimers, J., and Watts, R.: The
infrared absorption spectrum of water, Australian
Journal of Physics, Vol. 35, No. 5(1982), pp. 623–
638.
[ 5 ] Cruz-Neira, C., Sandin, D. J., and DeFanti,
T. A.: Surround-screen projection-based virtual reality: the design and implementation of the CAVE,
Proceedings of the 20th annual conference on Computer graphics and interactive techniques, ACM,
1993, pp. 135–142.
[ 6 ] Gallagher, D. G.: Development of miniature, head-mounted, virtual image displays fornavy divers, OCEANS’99 MTS/IEEE. Riding theCrest into the 21st Century, Vol. 3, IEEE, 1999,
pp. 1098–1104.
[ 7 ] Jain, D., Sra, M., Guo, J., Marques, R., Wu, R.,
Chiu, J., and Schmandt, C.: Immersive Scuba Diving Simulator Using Virtual Reality, Proceedings ofthe 29th Annual Symposium on User Interface Software and Technology, ACM, 2016, pp. 729–739.
[ 8 ] Kirschenbaum, D. S., Ordman, A. M., Tomarken,
A. J., and Holtzbauer, R.: Eﬀects of diﬀerential
self-monitoring and level of mastery on sports performance: Brain power bowling, Cognitive therapy
and Research, Vol. 6, No. 3(1982), pp. 335–341.
[ 9 ] Lavest, J.-M., Rives, G., and Lapresté, J.-T.:
Underwater camera calibration, European Conference on Computer Vision, Springer, 2000, pp. 654–
668.
[10] Lavest, J.-M., Rives, G., and Lapresté, J.-T.:
Dry camera calibration for underwater applications, Machine Vision and Applications, Vol. 13,
No. 5(2003), pp. 245–253.
[11] Lee, H., Moon, M., Park, T., Hwang, I., Lee, U.,
and Song, J.: Dungeons & swimmers: designing aninteractive exergame for swimming, Proceedings ofthe 2013 ACM conference on Pervasive and Ubiquitous Computing adjunct publication, ACM, 2013,
pp. 287–290.
[12] Morales, R., Keitler, P., Maier, P., and Klinker,
G.: An underwater augmented reality systemfor commercial diving operations, OCEANS 2009,
MTS/IEEE Biloxi-Marine Technology for Our Fu-Ίখ‫ܕ‬ͷϓʔϧΛ࢖༻ͨ͠ɽਫத VR ‫ڥ؀‬ΛਫӭτϨʔχϯάʹԠ༻͢ΔͨΊʹ͸εϖʔεͷ֦ு͕ඞཁ
ͱ͞ΕΔɽҠಈͷ੍‫ݶ‬ͷղܾํ๏ͱͯ͠ɼϓʔϧதʹਫྲྀΛൃੜͤ͞ϢʔβʔͷҐஔΛཹΊΔ͜ͱ͕ߟ͑
ΒΕΔɽ͔͠͠ɼਫྲྀ͕ө૾ͷࢹೝੑʹ༩͑ΔӨ‫ʹڹ‬͍ͭͯͷ‫ূݕ‬΍ٕज़త՝୊ͷ໌֬Խ͕ඞཁͱ͞ΕΔɽ

10 ·ͱΊ
ຊ‫Ͱڀݚ‬͸ɽਫӭମ‫ݧ‬ͷ޲্Λ໨తͱͨ͠ਫத຅ೖ‫ ܕ‬VR ‫( ڥ؀‬AquaCAVE) ΛఏҊ͠ɼ࣮‫ํݱ‬๏Λٕज़తʹࣔͨ͠ɽਫதʹ VR ‫ڥ؀‬Λ࣮‫͢ݱ‬ΔͨΊͷٕज़త՝୊ͱͯ͠͸ɼਫ͕࣋ͭ੺֎ઢ‫ٵ‬ऩɼࢳ‫ܕ͖ר‬࿪‫ۂ‬ऩࠩɽ൓ࣹͳͲ͕͋͛ΒΕΔɽAquaCAVE Λ࣮‫ݱ‬͢ΔͨΊʹ͸ɼਫதͷϢʔβʔͷϔουτϥοΩϯά
͕ඞཁͰ͋Δɽ͔͠͠ɼਫதʹϢʔβʔ͕ଘࡏ͢Δ৔߹ɼਫʹΑΔ੺֎ઢͷ‫ٵ‬ऩͷͨΊɽҰൠతʹ VR ‫؀‬‫ڥ‬ͷ࣮‫͞༻࢖ʹݱ‬ΕΔ੺֎ઢΛ༻͍ͨҐஔ‫ܭ‬ଌٕज़͕࢖༻Ͱ͖ͳ͍ɽ·ͨɼՄࢹޫΛ༻͍ͨҐஔ‫ܭ‬ଌٕज़Λ༻͍ͨ৔߹΋ɼ౤Ө͞ΕΔө૾ʹΑΔ્֐ͷͨΊ҆ఆͨ͠ϔουτϥοΩϯάΛ࣮‫͢ݱ‬Δ͜ͱ͕೉͍͜͠
ͱ͕Θ͔ͬͨɽຊ‫Ͱڀݚ‬͸ɼԁภޫʹΑΔःޫͱಁա
Λ༻͍ͯɽपғΛෳࡶͳ‫ܠ‬৭ʹғ·ΕͨਫதͰͷՄࢹޫ LED ϚʔΧʔͷ௥੻ͱϢʔβʔ΁ͷ໌ྎͳө૾ͷఏ‫ڙ‬ͷཱ྆Λ࣮‫ͨ͠ݱ‬ɽ຅ೖ‫ ܕ‬VR ‫ʹڥ؀‬͸֤εΫϦʔϯ΍ਫ໘ʹɼผͷεΫϦʔϯʹදࣔ͞Εͨө૾͕ࣸΓࠐΜͰ͠·͏໰୊͕͋ΔɽࣸΓࠐΜͩө૾ΛϢʔβʔ͕ࢹೝͰ͖Δ৔
߹ɼVR ‫ڥ؀‬ͷ຅ೖ‫͕ײ‬௿Լͯ͠͠·͏ɽຊ‫Ͱڀݚ‬ఏҊͨ͠ߏ੒͸ө૾ͷࣸΓࠐΈͷ௿‫ʹݮ‬΋༗ޮͰ͋Δ
͜ͱ͕Θ͔ͬͨɽ
ࠓ‫ޙ‬ͷ՝୊ͱͯ͠ɽϚʔΧʔͷ 3 ࣍‫ݩ‬Ґஔ‫ܭ‬ଌͷ࣮‫ͱݱ‬ਫ਼౓ͷ‫ূݕ‬ɼϓʔϧαΠζͷ֦ுʹؔ͢Δ‫ূݕ‬ͳͲ͕͋Δɽँࣙ ຊ‫ڀݚ‬͸ɼJSTɼACT-I ͷࢧԉΛड͚ͨ΋ͷ
Ͱ͋Δɽ

Vol. 29 No. 1 Feb. 2012
ture: Global and Local Challenges, IEEE, 2009,
pp. 1–8.
[13] OptiTrack: OptiTrack Motion Capture, http://optitrack.com/.
[14] Pibyl, B., Chalmers, A., and Zemk, P.: Featurepoint detection under extreme lighting conditions,
Proceedings of the 28th Spring Conference on Computer Graphics, ACM, 2012, pp. 143–150.
[15] Qualisys: Qualisys underwater motion capture,
http://www.qualisys.com/.
[16] Rheiner, M.: Birdly an attempt to fly, ACM
SIGGRAPH 2014 Emerging Technologies, ACM,
2014, pp. 3.
[17] Treibitz, T., Schechner, Y., Kunz, C., and Singh,
H.: Flat refractive geometry, IEEE transactions on
pattern analysis and machine intelligence, Vol. 34,
No. 1(2012), pp. 51–65.
[18] Ukai, Y. and Rekimoto, J.: Swimoid: a swim
support system using an underwater buddy robot,
Proceedings of the 4th Augmented Human International Conference, ACM, 2013, pp. 170–177.
[19] Yamashita, S., Zhang, X., Miyaki, T., and Rekimoto, J.: AquaCAVE: an underwater immersive
projection system for enhancing the swimming experience, ICAT-EGVE, (2016).
[20] Yamashita, S., Zhang, X., and Rekimoto, J.:
AquaCAVE: Augmented Swimming Environment
with Immersive Surround-Screen Virtual Reality,
Proceedings of the 29th Annual Symposium on User
Interface Software and Technology, ACM, 2016,
pp. 183–184.
[21] Zhang, Z.: A flexible new technique for camera
calibration, IEEE Transactions on pattern analysis and machine intelligence, Vol. 22, No. 11(2000),
pp. 1330–1334.
[22] ӬԬོ, ࢢ઒େี, ಺ࢁ໌඙: Ӭ‫࣓ٱ‬ੴΛ༻͍ͨࡾ࣍
‫ݩ‬Ґஔηϯαͷ։ൃͱͦͷԠ༻, ੜମҩ޻ֶ, Vol. 42,
No. 4(2004), pp. 300–306.
[23] ‫࡚ٶ‬େี, ஑಺ࠀ࢙, ΄͔: ภޫͷ‫ૅج‬ཧ࿦ͱͦͷԠ༻, ৘ใॲཧֶձ࿦จࢽίϯϐϡʔλϏδϣϯͱΠϝʔδϝσΟΞ (CVIM), Vol. 1, No. 1(2008), pp. 64–72.
[24] ࣡‫ށ‬ਖ਼ত: ਫத௒Ի೾Λ༻͍ͨւ༸‫ܭ‬ଌٕज़, ‫ܭ‬ଌͱ੍‫ޚ‬, Vol. 19, No. 3(1980), pp. 348–356.
[25] ࣲాٛ੖: ਫӭͷӡಈಛੑͱͦͷࢦಋʹؔ͢Δํ๏ֶత‫ڀݚ‬: ओͱͯ͠Ϋϩʔϧӭͷӡಈಛੑͷ‫ݟ‬஍͔Β,(2015).
[26] ࣳࢁलଠ࿠: εϙʔπ‫׆‬ಈʹର͢Δ ME ‫ثػ‬ͷԠ༻,
BME, Vol. 2, No. 4(1988), pp. 252–256.
[27] தຊক඙, ࠤ౻Յ৳, ‫ۄ‬໦߁ത, Ӭ໺ߒত, ധࠀণ, ࡫ؒढ़඙, ໳ాकਓ, ాଜਐҰ: खज़φϏήʔγϣϯʹ͓͚Δޫ࣓‫ؾ‬ϋΠϒϦου 3 ࣍‫ݩ‬ηϯαͷߏங, ిࢠ৘ใ௨
৴ֶձ࿦จࢽ D, Vol. 83, No. 1(2000), pp. 396–403.
[28] ೋළହ༤, ৭઒༗, Ҫग़‫ګ‬ฏ, ߴଜஐ೭: ௒Ի೾υοϓϥʔྲྀ଎෼෍‫ܭ‬Λ༻͍ͨՏ઒ྲྀྔ‫ܭ‬ଌ๏ʹؔ͢Δ‫ݕ‬౼,౔໦ֶձ࿦จू B, Vol. 64, No. 2(2008), pp. 99–114.
[29] ඼઒Ղຬ, ୩઒ஐ޺, ଠాໜ: ¡ ‫ݪ‬ஶ¿ Ճ଎౓ηϯαΛ༻͍ͨਓؒͷาߦɾస౗ͷ‫ݕ‬ग़, ઒࡚ҩྍ෱ࢱֶձࢽ,Vol. 9, No. 2(1999), pp. 243–250.

89ࢁԼ ੟‫ޛ‬౦‫ژ‬େֶ େֶӃֶࡍ৘ใֶ෎ɹത࢜
՝ఔֶੜɽ2016 ೥౦‫ژ‬େֶେֶӃֶࡍ৘ใֶ෎ֶࡍ৘ใֶઐ߈ म࢜՝ఔमྃɽ2014 ೥߳઒ߴ౳ઐ໳ֶߍ ઐ߈Պ ిࢠ৘ใ௨৴޻ֶઐ߈ଔ‫ۀ‬ɽฏ੒ 28 ೥౓౦‫ژ‬େֶ૯௕৆ɽฏ੒ 28 ೥౓౦‫ژ‬େֶେֶӃֶࡍ৘ใֶ෎ ֶ
෎௕৆ (࠷༏लम࢜࿦จ)ɽຯീ໦ ਸ౦‫ژ‬େֶ େֶӃ৘ใֶ‫ ؀‬ಛ೚।‫ڭ‬
तɽ2008 ೥౦‫ژ‬େֶେֶӃ৽ྖҬ૑੒Պֶ‫ڀݚ‬Պത࢜‫ظޙ‬՝ఔमྃɽಉ
େֶӃ৘ใֶ‫؀‬ɾυΠπΧʔϧεϧʔΤ޻Պେֶɾϑϥϯεࠃཱ৘ใֶࣗಈ੍‫ॴڀݚޚ‬Λ‫ ͯܦ‬2017 ೥ΑΓ৘ใֶ‫؀‬ώϡʔϚϯΦʔάϝϯςʔγϣϯֶʢιχʔ‫࠲ߨ෇د‬ʣઐ೚‫ڭ‬һɽώϡʔϚϯίϯϐϡʔλΠϯλϥΫγϣϯͱ࣮ੈքηϯγϯάʹؔ
͢Δ‫ࣄैʹڀݚ‬ɽത࢜ʢՊֶʣɽਡ๚ ढ़Ұ‫ࣜג‬ձࣾιχʔίϯϐϡʔλαΠΤϯε‫ॴڀݚ‬ɽ2002 ೥౦‫ۀ޻ژ‬େֶେֶӃཧ޻ֶ‫ڀݚ‬Պ༗‫ߴػ‬෼ࢠ෺࣭ઐ
߈म࢜՝ఔमྃɽѴ঳ࢠ‫ࣜג‬ձࣾɽχʔ‫ࣜג‬ձࣾΛ‫ ͯܦ‬2016 ೥ΑΓ‫ࣜג‬ձࣾιχʔίϯϐϡʔλαΠΤϯε‫ۈʹॴڀݚ‬຿ɽ2017 ೥ΑΓ౦‫ژ‬େֶ৘ใֶ‫؀‬٬һ‫ڀݚ‬һɽྐྵຊ ७Ұ౦‫ژ‬େֶେֶӃ৘ใֶ‫؀‬ɹ‫ڭ‬तɽ1986೥ ౦‫ۀ޻ژ‬େֶཧֶ෦৘ใՊֶՊम
࢜աఔमྃɽ೔ຊి‫ؾ‬ɼΞϧόʔλେֶΛ‫ͯܦ‬ɼ1994 ೥ΑΓ‫ࣜג‬ձࣾιχʔίϯϐϡʔλαΠΤϯε‫ۈʹॴڀݚ‬຿. 1999 ೥ΑΓιχʔίϯϐϡʔλαΠΤϯε‫ ॴڀݚ‬ΠϯλϥΫγϣϯϥϘϥτϦʔࣨ௕ɽ2007 ೥ΑΓ౦‫ژ‬େֶେֶӃ৘ใֶ‫ڭ؀‬त (݉ ιχʔίϯϐϡʔλαΠΤϯ
ε‫ॴڀݚ‬෭ॴ௕)ɽJST ͖͕͚͞૯‫( ׅ‬2017-)

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