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[ECCV2020 論文読み会] MotionSqueeze: Neural Motion F...
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tomoyukun
December 12, 2020
Science
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[ECCV2020 論文読み会] MotionSqueeze: Neural Motion Feature Learning for Video Understanding
tomoyukun
December 12, 2020
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Transcript
ECCVจಡΈձˏશຊCVษڧձ Motion Squeeze: Neural Motion Feature Learning for Video
Understanding ླ ஐ೭ @tomoyukun
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1SFWJPVTXPSLT 5 ը૾ೝࣝʹ͓͚Δ %$//ͷޭ
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UFNQPSBMDPOW
5XP4USFBN%$// $BSSFJSB $713` <> 3(#ೖྗͷ%$//ͱ0QUJDBMqPXTೖྗͷ%$//ͷΞϯαϯϒϧ 10 5XPTUSFBN%$// ˙ %$//Λ༻ͯ͠σʔληοτʹΑͬͯ'MPX3(# ˙
3(# 'MPXͷΞϯαϯϒϧͰେ෯ʹਫ਼্͕͕Δ BDDVSBDZPOBDUJPOSFDPHOJUJPO 0QUJDBMqPX͕༗ޮͳΒ ྡ͢Δ3(#ϑϨʔϜը૾͔ΒܭࢉՄೳͳ ͷͰ FFʹ%$//Λֶश͢ΔதͰͦ͏͍ͬͨಛΛ௫ΜͰཉ͍͠ %DPOWͷදݱೳྗNPUJPOΛଊ͑ΔͷʹෆेͳͷͰʁ % %
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8"$7` <> $SBTUP $713` <>
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1SPQPTJUJPO 13 .PUJPOநग़ͷͨΊͷl.PUJPO4RVFF[F .4 NPEVMFzͷఏҊ ˙ ྡϑϨʔϜͷಛϚοϓͷDPSSFMBUJPO͔ΒରԠΛநग़͠NPUJPOΛܭࢉ ˙ ඍՄೳͳॲཧͰߏ͞ΕɺFOEUPFOEʹֶशՄೳ ˙
ਫ਼ͱܭࢉίετͷτϨʔυΦϑΛେ෯ʹվળ
.PUJPO4RVFF[F ྡϑϨʔϜؒͷରԠ͢Δ࠲ඪΛ֬ͱͯ͠ٻΊͯɺมҟͷظΛͱΔ 14
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ͷۙύονͷൣғʹ੍ݶ ˙ ԋࢉ '-01T x p x P × P H × W × C × P2 15 P × P ʜ ࠲ඪ ࠲ඪ͔Βͷมҟ ࣌ࠁ
.PUJPO4RVFF[Fc%JTQMBDFNFOUDBMDVMBUJPO ˙ ֤࠲ඪͷ૬ؔΛTPGUNBYؔʹೖྗ͠ ࠲ඪͷରԠΛ֬ͱͯ͠ಘΔ ˙ ૬ؔʹ(BVTTJBOLFSOFMΛద༻ͯ͠PVUMJFSΛ੍ 16
(BVTTJBOLFSOFM Թύϥϝʔλ
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ͷϚοϓͱͳΔ ˙ ԹύϥϝʔλͰNFBONBYΛௐ 17 d Թύϥϝʔλ (BVTTJBOLFSOFM
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7JTVBMJ[BUJPO 27 NPUJPO DPOpEFODF NPUJPO DPOpEFODF NPUJPODPMPS DPEJOH తͳڭࢣͳ͠ͰNPUJPOΒ͖͠ͷΛநग़Ͱ͖͍ͯΔ
·ͱΊ FOEUPFOEʹֶशՄೳͳNPUJPOநग़ϞδϡʔϧͷఏҊ ˙ ߦಈೝࣝʹ͓͚Δਫ਼ͱܭࢉίετͷτϨʔυΦϑΛେ͖͘վળ ˙ நग़͞ΕΔಛϐΫηϧͷҠಈʹରԠ͓ͯ͠ΓɺతͳڭࢣΛඞཁͱͤͣʹ NPUJPOΛநग़Ͱ͖͍ͯΔ͜ͱΛ֬ೝ ݸਓతײɿ ˙ ࣗવಈըͷಛੑաڈͷݚڀͷྲྀΕ͔Βग़ͯ͘Δ՝ײʹج͍ͮͨఏҊख๏Ͱ
ೲಘײ͕͋ͬͨ ˙ ͍͔ʹNPUJPOΛநग़͍͢͠ܭࢉߏʹͰ͖Δ͔ͱ͍͏ҙຯͰɺPQUJDBM qPXਪఆʹ͓͍ͯ༗ޮͳΞʔΩςΫνϟͱ྆ྠͰࠓޙͷվળ͕ظͰ͖ͦ͏ ˙ 7JEFPVOEFSTUBOEJOH͕͍ͩͿl"DUJPOSFDPHOJUJPOzʹಛԽ͖ͯͯ͠Δײ͡ ͕͋ΔɻଞͷυϝΠϯλεΫͰ༗ޮͳϞσϧมΘΒͳ͍ͩΖ͏͔ʁ 28
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FUBM l$SFBUJOHTVNNBSJFTGSPNVTFSWJEFPT zJO&$$7 <>3,SJTIOB FUBM l%FOTF$BQUJPOJOH&WFOUTJO7JEFPT JO*$$7 <>%5SBO FUBM l-FBSOJOHTQBUJPUFNQPSBMGFBUVSFTXJUIEDPOWPMVUJPOBMOFUXPSLT zJO*$$7 <>,4JNPOZBO FUBM l5XPTUSFBNDPOWPMVUJPOBMOFUXPSLTGPSBDUJPOSFDPHOJUJPOJOWJEFPT zJO/*14 <>%5SBO FUBM l"DMPTFSMPPLBUTQBUJPUFNQPSBMDPOWPMVUJPOTGPSBDUJPOSFDPHOJUJPO zJO*$$7 <>$'FJDIUFOIPGFS FUBM l4MPX'BTU/FUXPSLTGPS7JEFP3FDPHOJUJPO zJO*$$7 <>+-JO FUBM l54.5FNQPSBM4IJGU.PEVMFGPS&⒏DJFOU7JEFP6OEFSTUBOEJOH zJO*$$7 <>+$BSSFJSB FUBM l2VPWBEJT BDUJPOSFDPHOJUJPO BOFXNPEFMBOEUIFLJOFUJDTEBUBTFU zJO*$$7 <>+:VF)FJ/H FUBM l"DUJPOqPXOFU-FBSOJOHNPUJPOSFQSFTFOUBUJPOGPSBDUJPOSFDPHOJUJPO zJO8"$7 <>/$SBTUP FUBM l."34.PUJPO"VHNFOUFE3(#4USFBNGPS"DUJPO3FDPHOJUJPO zJO$713 <>"1JFSHJPWBOOJ FUBM l3FQSFTFOUBUJPOqPXGPSBDUJPOSFDPHOJUJPO zJO$713 <>8,BZ FUBM l5IFLJOFUJDTIVNBOBDUJPOWJEFPEBUBTFU zJOBS9JWQSFQSJOU <>3(PZBM FUBM l5IFTPNFUIJOHTPNFUIJOHWJEFPEBUBCBTFGPSMFBSOJOHBOEFWBMVBUJOHWJTVBMDPNNPOTFOTF zJO*$$7 29