第９回 全日本コンピュータビジョン勉強会 発表資料

ICCV 2021
DocFormer: End-to-End Transformer for Document Understanding

Transcript

1. %PD'PSNFS
   &OEUP&OE
   5SBOTGPSNFS
   GPS
   %PDVNFOU
   6OEFSTUBOEJOH 2021/12/12ɹICCV'21 ಡΈձ
 Yamato OKAMOTO
2. ຊ೔ɺ঺հ͢Δ࿦จ
   w %PDVNFOU
   6OEFSTUBOEJOHΛλʔήοτͱͨ͠5SBOTGPSNFSϞσϧͷఏҊ
   ͍ͭͰʹࢲͷ঺հ
   w Ԭຊେ࿨ʢ͓͔΋ͱ΍·ͱʣ
   w ژେඒೱݚˠΦϜϩϯˠ-*/&גࣜձࣾ
   ,ZPUP
   0GGJDF
   w Ӊ஦Ұָ͍͠$7
   -BCΛژ౎ʹ࡞Δ΂͘νʔϜϏϧυத
   w ࠷ۙͷڵຯ͸υΩϡϝϯτղੳٕज़ → LINE DevDay2021Ͱ΋ొஃͯ͠ɺυΩϡϝϯτղੳʹ͍ͭͯ࿩͠·ͨ͠ʙ̇ ɹɹhttps://www.youtube.com/watch?v=D45wIMN6R_I
3. -*/&
   BU
   *$$7
    https://linecorp.com/ja/pr/news/ja/2021/3843 https://iccv2021.thecvf.com/sponsors ฐࣾͷΤʔε͕ຊ௨͠·ͨ͠ εϙϯαʔͱͯ͠ϒʔεΛग़ͤͯ͞௖͖·ͨ͠ ɾ(FOFSBMJ[FE
   4IV ffl FE
   -JOFBS
   3FHSFTTJPOʢ0SBMͰ͢ʣ
   ɹ'FJSBO
   -J
   ,FOU
   'VKJXBSB
   'VNJP
   0LVSB
   BOE
   :BTVZVLJ
   .BUTVTIJUB
   ɾ"
   $MPTFS
   -PPL
   BU
   3PUBUJPOJOWBSJBOU
   %FFQ
   1PJOU
   $MPVE
   "OBMZTJT
   ɹ'FJSBO
   -J
   ,FOU
   'VKJXBSB
   'VNJP
   0LVSB
   BOE
   :BTVZVLJ
   .BUTVTIJUB
4. Document Understandingͬͯɺ ͍͍ͬͨԿΛ͢Δͷʁʁ
5. 4FRVFODF
   -BCFMJOH )FBEFS
   PSBOHF
   2VFTUJPO
   CMVF
   "OTXFS
   HSFFO ʹ෼ྨ ̍ͭ̍ͭͷςΩετΛʮ2VFTUJPOʯʮ"OTXFSʯͳͲͷΠϯςϯτΛϕʔεʹɺάϧʔϓ෼͚͢ΔλεΫɻ
   '6/4%
   GPSN
   VOEFSTUBOEJOH
   JO
   OPJTZ
   TDBOOFE
   EPDVNFOUT
   %BUBTFU
   ͕༗໊ɻ https://arxiv.org/abs/1905.13538 จࣈྻɺ࠲ඪΛڭࢣϥϕϧͱͯ͠෇༩ ςΩετϦϯΫͷڭࢣϥϕϧ΋͋ΔͷͰɺ
   ,FZ7BMVFΛநग़͢ΔΑ͏ͳλεΫ΋Մೳɻ
6. %PDVNFOU
   $MBTTJGJDBUJPO υΩϡϝϯτը૾ͷΫϥεΛ༧૝͢ΔλεΫɻ
   5IF
   37-$%*1
   %BUBTFU
   ͕༗໊ɺΫϥεΛؚΉສͷάϨʔεέʔϧը૾Ͱߏ੒͞ΕΔɻ https://www.cs.cmu.edu/~aharley/rvl-cdip/
7. &OUJUZ
   &YUSBDUJPO
   <> • $03%
   "
   $POTPMJEBUFE
   3FDFJQU
   %BUBTFU
   GPS
   1PTU0$3
   1BSTJOH
   • ςΩετɺ࠲ඪɺΫϥεʢNFOV
   UPUBM
   ͳͲछྨʣͷڭࢣϥϕϧ͕෇༩͞Ε͍ͯΔ υΩϡϝϯτ͔Βಛఆ৘ใʢ&Y
   NFOV
   QSJDFʣΛநग़͢ΔλεΫɻ
   Ϩγʔτը૾ͷ$03%
   %BUBTFU΍ɺܖ໿ॻը૾ͷ,MFJTUFS/%"͕͋Δɻ https://github.com/clovaai/cordɹɹhttps://arxiv.org/pdf/2003.02356.pdf
8. &OUJUZ
   &YUSBDUJPO
   <> • ,MFJTUFS/%"ɿ໿෦ɺ߹ܭ໿ϖʔδ͔ΒͳΔ/%"ܖ໿ॻͷσʔληοτɻ
   • ܖ໿ॻ͝ͱͷ୯ҐͰɺʮܖ໿ظؒʢFGGFDUJWF@EBUFʣʯͳͲछྨͷFOUJUZ͕ڭࢣϥϕϧͱͯ͠෇༩͞Ε͍ͯΔɻ υΩϡϝϯτ͔Βಛఆ৘ใʢNFOV
   QSJDFʣΛநग़͢ΔλεΫɻ
   Ϩγʔτը૾ͷ$03%
   %BUBTFU΍ɺܖ໿ॻը૾ͷ,MFJTUFS/%"͕͋Δɻ https://github.com/clovaai/cordɹɹhttps://arxiv.org/pdf/2003.02356.pdf
9. ͜͜·Ͱͷ·ͱΊ
   w %PDVNFOU
   6OEFSTUBOEJOHͱ͸ԿΛ͢Δͷ͔ʁʁ
   w ༷ʑͰ͋Δɻྫ͑͹ɺॻྨͷछྨࣝผ΍ɺࣄલఆٛͨ͠ಛఆ৘ใΛݟ ͚ͭग़͢Α͏ͳλεΫ͕͋Δɻ
   w ୅දతͳσʔληοτʹɺϨγʔτը૾΍ܖ໿ॻը૾ΛूΊͨ΋ͷ͕ ͋Γɺจࣈྻɾ࠲ඪɾJOUFOU΍FOUJUZͷڭࢣϥϕϧ͕෇༩͞Ε͍ͯΔɻ
10. λεΫ΍σʔληοτ͕ଟछଟ༷ͳͷ͸Θ͔ͬͨʂ ͡Ό͊ɺͲΜͳݚڀ͕ͳ͞Ε͍ͯΔͷʁ
11. ܏޲ɿೖྗΛ.VMUJNPEBMʹ͢Δ • $//Ͱநग़ͨ͠7JTJPOಛ௃ྔʹɺ-BOHVBHFͷಛ௃ྔΛԣ͔Βࠩ͠ࠐΜͰɺߏ଄ղੳʹνϟϨϯδͨ͠ݚڀɻ
    • -BOHVBHFͷಛ௃ྔநग़ʹ͸ɺςΩετͷྖҬݕग़ͱೝࣝΛ͢Δ0$3෦͕ඞཁͱͳΔɻ
    • ͜ͷ࿦จͰ͸ɺطଘͷ0$3Τϯδϯʢ5FTTFSBDUʣΛར༻͍ͯ͠Δɻ࢒೦ͳ͕Β͜ͷ෦෼͸&&Ͱֶश͞Εͳ͍ɻ υΩϡϝϯτʹ͸ը૾΋ݴޠ΋ؚ·Ε͍ͯͯɺͦΕͧΕ͕ώϯτʹͳΔ͸ͣʂ
    ͦ͜Ͱɺ྆ํͷಛ௃ྔΛநग़ͯ͠ར༻͢Δ.VMUJNPEBMͳݚڀ͕ਐలதɻ Learning to Extract Semantic Structure from Documents Using Multimodal Fully Convolutional Neural Network (CVPR'17) https://arxiv.org/pdf/1706.02337.pdf
12. ܏޲ɿڭࢣͳֶ͠शͰ5SBOTGPSNFSߏ଄ΛQSFUSBJO ෳ਺ͷڭࢣͳ͠λεΫͷఏҊʹΑΓ5SBOTGPSNFSߏ଄ͷֶशʹ੒ޭɻ
    1.UFYU
    UPLFOͷҰ෦ΛӅͯ͠ɺͦΕΛ෮ݩͤ͞Δɻ
    2.Ұఆׂ߹ͷςΩετΛࠇ͘ృΓͭͿ͢ɻͦͯ͠ɺృΓ௵͞Ε͍ͯΔ͔ $PWFSFE ɺృΓ௵͞Εͯͳ͍͔ /PU
    $PWFSFE Λ༧ଌͤ͞Δɻ
    3.ͱ͖͓Γɺը૾ͱςΩετͷϖΞΛ͢Γସ͑Δɻ͜ͷ৚݅ԼͰɺ 
 υΩϡϝϯτը૾ͱςΩετͷϖΞ͕ద੾͔ʢ.BUDIʣɺ 
 ͢Γସ͑ΒΕ͍ͯΔ͔ʢ/PU
    .BUDIʣΛ༧ଌͤ͞Δɻ ໠ҖΛฃ͍ͬͯΔ5SBOTGPSNFSʂʂ
    େྔσʔλͰֶशͰ͖ΔΑ͏ʹڭࢣͳ͠λεΫΛઃఆ͢Δɻ LayoutLMv2: Multi-modal Pre-training for Visually-Rich Document Understanding (ACL'21) https://arxiv.org/pdf/2012.14740.pdf
13. ܏޲ɿ5SBOTGPSNFSͷΞʔΩςΫνϟʔΛվળ B 7JTJPOͱ8PSEͷ5PLFOΛྻʹฒ΂ͯॱ൪ʹೖྗ͢Δɻ 
 ҟͳΔ.PEBMಉ࢜ͷσʔλͰద੾ʹ"UUFOUJPO͕͔͔Δ͔ٙ໰ɻ
    C 7JTJPOͱ8PSEΛҟͳΔ5SBOTGPSNFSͰॲཧ͔ͯ͠Β'VTJPO͢Δɻ 
 "UUFOUJPO͸͔͔Γͦ͏͕ͩɺ.VMUJNPEBMͷԸܙ͕ݮΓͦ͏ɻ
    D 5SBOTGPSNFSʹೖྗ͢Δલͷ5PLFOஈ֊Ͱ'VTJPOͤ͞Δɻ 
 DPODBUͳͲͰγϯϓϧͳख๏Ͱ'VTJPOͤͯ͞Α͍ͷ͔ո͍͠ɻ
    ओு͍ͯ͠Δར఺ͱܽ఺΋ਖ਼͍͠ͷ͔ٙΘ͍͠ɺɺɺɺ
    ΋͸΍ͩΜͩΜͲΕ͕࠷దͳͷ͔෼͔Βͳ͘ͳ͖ͬͯͨɻɻɻɻ 7JTJPO΍-BOHVBHFͳͲੑ࣭ͷҟͳΔಛ௃ྔΛ͍͔ʹ'VTJPOͤ͞Δ͔ʁ
    ΞʔΩςΫνϟઃܭͰ΋ݚڀ͕ന೤தʂʂ https://arxiv.org/abs/2106.11539
14. ͜͜·Ͱͷ·ͱΊ
    %PDVNFOU
    6OEFSTUBOEJOHʹ5SBOTGPSNFS౸དྷɻ
    ݚڀͷ܏޲͸େ͖̏ͭ͘ʂ
    
    ೖྗΛΠΠײ͡ʹ͢Δʂʢ͍͔ʹෳ਺ͷ.PEBMΛऔΓೖΕΔ͔ʣ
    
    ֶशΛΠΠײ͡ʹ͢Δʂʢ͍͔ʹڭࢣͳ͠λεΫΛઃܭ͢Δ͔ʣ
    
    ΞʔΩςΫνϟΛΠΠײ͡ʹ͢Δʂʢ͍͔ʹ'VTJPOͤ͞Δ͔ʣ
15. ຊ೔঺հ͢Δ࿦จ ʮ%PD'PSNFSʯʮ%PDVNFOU
    6OEFSTUBOEJOHʯʴʮ5SBOTGPSNFSʯ CZ
    "84
    "*
    ߩݙϙΠϯτɿ͜͜·Ͱ঺հ͖ͯͨ̏͠఺ΛΠΠײ͡ʹͨ͠ https://openaccess.thecvf.com/content/ICCV2021/papers/Appalaraju_DocFormer_End-to-End_Transformer_for_Document_Understanding_ICCV_2021_paper.pdf
16. 7JTJPO
    -BOHVBHF
    4QBUJBMͷछྨͷಛ௃ྔΛೖྗ 7JTJPO
    'FBUVSF
    • 3FT/FUͰ֫ಘͨ͠'FBUVSF.BQΛɺY@$POWͰ೚ҙͷDI਺ E ʹม׵ޙɺMJOFBS
    USBOTGPSNFS
    MBZFSͰ೚ҙͷαΠζ E / ʹม׵
    -BOHVBHF
    'FBUVSF
    • 0$3ΤϯδϯͰςΩετΛݕग़ʴೝࣝʴಛ௃ྔԽͨ͠5PLFOΛɺ&NCFEEJOH
    MBZFSʹ͔͚Δɻʢ˞0$3෦෼͸ֶशෆՄʣ
    • நग़ͨ͠ςΩετͷݸ਺͕ɺ/ݸʹຬͨͳ͍৔߹͸
    <1"%>
    Ͱ݀ຒΊ͢Δɻ/ݸΛ௒͑Δ৔߹͸5PLFOΛഁغ͢Δɻ
    4QBUJBM
    'FBUVSF
    • 0$3Τϯδϯ͕ݕग़֤ͨ͠ςΩετͷCCPY࠲ඪΛՃ޻ͯ͠4QBUJBM
    'FBUVSFͱ͢Δɻ
    • CCPYͷࠨ্࠲ඪɺӈԼ࠲ඪɺ෯ɺߴ͞ɺʢը૾্Ͱࠨ্͔ΒӈԼʹ͔͚ͯCCPYΛφϯόϦϯάͨ͠ͱԾఆͯ͠ʣྡͷ#PYͱͷڑ཭Λɺ&NCFEEJOH
    MBZFS
    USBJOBCMF
    ʹ͔͚Δɻ
    • 7JTJPOઐ༻ͷ&NCFEEJOH
    MBZFSͱɺ-BOHVBHFઐ༻ͷ&NCFEEJOH
    MBZFSΛઃ͚ͯɺͦΕͧΕผʑͷ4QBUJBM
    'FBUVSFΛੜ੒͢Δɻ
    • ͜ͷͱ͖ɺ͋Θͤͯ7JTJPO΍-BOHVBHFͷ%1PTJUJPOʢԿ൪໨ͷಛ௃ྔ͔ʁʣ΋ɺ͋Θͤͯ&NCFEEJOH
    MBZFSʹೖྗ͢Δɻ ը૾σʔλ͔ΒҟͳΔϞμϦςΟͷಛ௃ྔΛநग़ͯ͠ɺೖྗΛΠΠײ͡ʹͨ͠ ຊ࿦จͷΞʔΩςΫνϟͰ͸ɺ֤ϞμϦςΟͰ 
 ಉ͡ݸ਺ ͜ͷਤͰ͸/ ͷಛ௃ྔΛ४උ͍ͯ͠Δɻ CCPYͰUFYUಛ௃ྔͷҐஔ৘ใΛ࣋ͨͤΔͱͱ΋ʹɺ 
 %1PTJUJPOʹΑͬͯɺWJTJPOಛ௃ྔͷҐஔ৘ใ΋࣋ͨͤΒΕΔͱ༧૝ɻ
17. 3FDPOTUSVDUJPOΛؚΉͭͷڭࢣͳ͠λεΫΛఆٛ .BTLFE
    -BOHVBHF
    .PEFMJOH
    • ैདྷͷ#&35ͱಉ༷ʹɺ&ODPEF͞Εͨಛ௃ྔ͔Β.BTLFE5FYUΛ༧ଌ͢Δɻ
    • ͨͩ͠ɺ.VMUJNPEBMʹͨ͠ಛ௃ྔ͔Β෮ݩͤ͞Δ఺͕ಛ௃తͰ͋Δɻ
    3FDPOTUSVDU
    • &ODPEF͞Εͨશͯͷಛ௃ྔΛར༻ͯ͠ɺ"VUP
    &ODPEFSͱಉ༷ʹը૾Λ3FDPOTUSVDUJPO͢Δɺ-PTT͸TNPPUI-Λ࠾༻ɻ
    • ग़ྗ͸ը૾ͷΈ͕ͩɺจࣈը૾Λਖ਼֬ʹ3FDPOTUSVDUJPO͢΂͘ɺ7JTJPOʹՃ͑ͯ-BOHVBHFͷ׆༻๏΋ֶशͯ͘͠ΕΔͱظ଴ɻ
    5FYU
    %FTDSJCF
    *NBHF
    • Ұఆׂ߹Ͱը૾ͱ5FYUͷ૊Έ߹ΘͤΛγϟοϑϧͯ͠ɺϖΞ͕ద੾͔Ͳ͏͔ PS Λ༧ଌ͢Δɻ
    • ্ड़ͷͭͷλεΫ͕ओʹ-PBDM
    'FBUVSFʹண໨͢ΔҰํͰɺͪ͜Β͸(MPCBM
    'FBUVSFʹண໨͢΂͖λεΫͰ͋Δɻ
    • <$-4>Λ&ODͨ͠ಛ௃ྔ͔Β༧૝͍ͯ͠Δͷ͸ɺ"UUFOUJPOͰΠΠײ͡ʹશମ͔Βಛ௃ྔΛू໿͍ͯ͠Δͱظ଴Ͱ͖Δ͔Βɻ ֤छϞʔμϧɺ-PDBM
    'FBUVSFɺ(MPCBM
    'FBUVSFΛ׆༻͢ΔΑ͏
    ڭࢣͳ͠λεΫΛόϥϯεΑ͘ఏҊͯ͠ɺֶशΛΠΠײ͡ʹͨ͠
18. ैདྷͱҟͳΔ5SBOTGPSNFSͷΞʔΩςΫνϟΛఏҊ -BOHVBHF
    'FBUVSFΛ&ODPEF͢ΔաఔͰɺ7JTJPOͱ4QBUJBMΛTLJQ
    DPOOFDUJPOͰ܁Γฦ͠Ϛʔδɻ
    ֤-BZFS͕7JTJPOͱ4QBUJBMʹΞΫηεՄೳͳɺΠΠײ͡ͷΞʔΩςΫνϟΛ࣮ݱͨ͠ɻ %PD'PSNFSͷΞʔΩςΫνϟ ैདྷͷΞʔΩςΫνϟ
19. ఏҊΞʔΩςΫνϟͷৄࡉ w -BOHVBHFͱ7JTJPOͦΕͧΕʹઐ༻ͷMBZFSʢࢵͱ྘ʣΛઃ͚ͯɺಛ௃ྔΛม׵ͯ͠࠷ޙʹՃࢉ͢Δ
    w -BOHVBHF
    'FBUVSF͸ɺMBZFSΛॏͶΔ͝ͱʹɺҟͳΔϞʔμϧಛ௃Λࠞͥͳ͕Β܁Γฦ͠5SBOTGPSN͞ΕΔ
    w ҰํͰɺ7JTJPO
    'FBUVSFͱ4QBUJBM
    'FBUVSF͸ɺຖճॳظঢ়ଶͰ֤-BZFSʹԣ͔Βྲྀ͠ࠐ·ΕΔ
    w 4QBUJBM
    'FBUVSFΛ,FZ΍2VFSZʹ͢ΔMBZFS͸ڞ௨Խʢ੺ʣ͍ͯ͠Δ
    w ͨͩ͠ɺͦ΋ͦ΋4QBUJBM
    'FBUVSF͸-BOHVBHFઐ༻ͱ7JTJPOઐ༻Ͱผʑʹ४උͨ͠఺ʹ஫ҙ
    w 8SFM͸%
    SFMBUJWF
    QPTJUJPO
    FNCFEEJOHͱݺ͹ΕɺJ൪໨ͱK൪໨ͷؔ܎ੑΛ֫ಘ͢ΔͨΊͷֶशՄೳͳύϥϝλ
    w ࿦จͰ͸ɺྑ͍࣮ݧ݁Ռ͕ಘΒΕͨ͜ͱ͔Β΋ɺʮ֤Ϟʔμϧ΁ͷΞΫηεΛྑͨ͘͜͠ͱ͕ॏཁʂʯͱओு͍ͯ͠Δ https://openaccess.thecvf.com/content/ICCV2021/supplemental/Appalaraju_DocFormer_End-to-End_Transformer_ICCV_2021_supplemental.pdf ελϯμʔυͳܗ͸͜Εʂ
20. ࣮ݧ݁ՌɿैདྷݚڀΑΓ΋ߴੑೳ͔ʁ ๯಄ʹ঺հͨ͠%PDVNFOU
    6OEFSTUBOEJOHͷλεΫ΍σʔληοτͰ4P5"Λ͔ͬ͞Βͬͨ %PD'PSNFSCBTF
    ˠ
    
    USBOTGPSNFS
    MBZFST
    %PD'PSNFSMBSHF
    ˠ
    
    USBOTGPSNFS
    MBZFST
    * 5 4
    ˠ
    5FYU
    *NBHF
    4QBUJBM
    'FBUVSFΛར༻
    5 4
    ˠ
    5FYU
    4QBUJBM
    'FBUVSFͷΈΛར༻
21. ࣮ݧ݁ՌɿैདྷݚڀΑΓ΋ߴੑೳ͔ʁ ͏·͍ͬͯ͘Δྫ .FOV
    JUFN ੺
    5PBM ੨
    4VC5PUBM ྘ ʹ෼ྨ )FBEFS ੺
    2VFTUJPO ੨
    "OTXFS ྘ ʹ෼ྨ
    
22. ࣮ݧ݁Ռɿ7JTJPO
    'FBUVSF͸໾ʹཱ͍ͬͯΔ͔ʁ ֤λεΫͰɺʮ5 4ʯΑΓ΋7JTJPOΛՃ͑ͨʮ5 4 7ʯͷํ͕'4DPSF͕େ͖͘ͳͬͨɻ
    ͨͩ͠ɺ޲্෯͕QPJOUఔ౓ͷ৔߹΋͋Ε͹ɺQPJOUҎԼͷ৔߹΋͋ͬͨɻ %PD'PSNFSCBTF
    ˠ
    
    USBOTGPSNFS
    MBZFST
    %PD'PSNFSMBSHF
    ˠ
    
    USBOTGPSNFS
    MBZFST
    * 5 4
    ˠ
    5FYU
    *NBHF
    4QBUJBM
    'FBUVSFΛར༻
    5 4
    ˠ
    5FYU
    4QBUJBM
    'FBUVSFͷΈΛར༻
23. ࣮ݧ݁Ռɿ7JTJPO
    'FBUVSF͸໾ʹཱ͍ͬͯΔ͔ʁ 7JTJPO
    'FBUVSF͕໾ʹཱͬͨΘ͔Γ΍͍͢ྫ
    ߦ໨ͷʮ5"3(&5ʯ͸ɺ5 4Ͱ͸ޡࣝผ͕ͨ͠ɺ7JTJPOΛՃ͑Δͱ)FBEFSͩͱਖ਼ղͰ͖ͨ ੺ɿ)FBEFS
    ੨ɿ2VFTUJPO
    ྘ɿ"OTXFS ਖ਼ղ 5FYUʴ4QBUJBM 5FYUʴ4QBUJBM 7JTJPO
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