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第11回 全日本コンピュータビジョン勉強会 CVPR2022 "A Self-Supervis...

第11回 全日本コンピュータビジョン勉強会 CVPR2022 "A Self-Supervised Descriptor for Image Copy Detection"

第11回 全日本コンピュータビジョン勉強会
https://kantocv.connpass.com/event/253626/

紹介論文:A Self-Supervised Descriptor for Image Copy Detection
https://openaccess.thecvf.com/content/CVPR2022/html/Pizzi_A_Self-Supervised_Descriptor_for_Image_Copy_Detection_CVPR_2022_paper.html

Yamato.OKAMOTO

August 18, 2022
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  1. ಥવͰ͕͢ɺ͜Μͳܦݧ͋Γ·ͤΜ͔ʁʁ 4/4ʹ౤ߘͨࣸ͠ਅ͕ແஅͰ࢖ΘΕ͍ͯͨʂʂ Αͬ͠Όɺࣸਅࡱͬͯ΋Ζͨ͠ɺ 4/4ʹ౤ߘͨ͠Ζͬʂ Μʜʁ͋ͷը૾ɺΘ͠ͷͪΌ͏͔ʂʁ ແஅͰ޿ࠂૉࡐͱͯ͠࢖ΘΕͯΔ΍Μʂʂ ˞ϑΟΫγϣϯͰ͢ >∩( ^ ω

    ^)∩< 📲 Σ ƅЧƅ|||) ઌண໊ʹ ͚ͩڭ͑·͢ ͍·͙͢ສԁՔ͙ํ๏ ͙͢ΫϦοΫ ޙ೔ ͜͜·Ͱώυ͍ྫͰ͸ͳ͘ͱ΋ɺࢲ͸෦׆ಈͰࡱӨͨ͠ϥάϏʔͷࢼ߹ࣸਅΛɺ νϥγͷഎܠը૾ͱͯ͠ແஅར༻͞Εͨܦݧ͕͋Γ·͢😱
  2. ݁ՌɿͦΕ͚ͩͰ͸μϝͰͨ͠ʢɾТɾʆʣ • ͳͥίϐʔը૾ͱݩը૾͕࠷ۙ๪ʹͳΒͳ͔͔ͬͨʁ - ॻ͖ࠐΈจࣈɺ഑৭ɺղ૾౓ͳͲͷཁૉ͕ྨࣅ͢Δ ଞͷը૾͕࠷ۙ๣ʹͳͬͯ͠·ͬͨ • *NBHF$PQZ%FUFDUJPOͷ೉͠͞ - Ճ޻͞Εͯ΋ݩը૾͕ಉ͡ͳΒಛ௃ྔ͕ྨࣅ͢ΔΑ

    ͏ʹ͍ͨ͠ - ͍͔ʹɺͦͷΑ͏ͳಛ௃ྔදݱΛֶश͢Δ͔ʁ ࣮ࡍʹ4JN$-3Ͱಛ௃ྔදݱΛֶशͯ͠ɺίαΠϯྨࣅ౓Ͱۙ๣ը૾Λநग़ͨ݁͠Ռ͕ӈԼɻ ը૾Ճ޻Ͱಛ௃ྔ͕एׯԕ͔ͬͨ͟෼ɺଞͷը૾͕࠷ۙ๣ʹͳͬͯ͠·ͬͨͱਪ࡯͞ΕΔɻ ͜ΕΛݕग़͔ͨͬͨ͠ https://openaccess.thecvf.com/content/CVPR2022/html/Pizzi_A_Self-Supervised_Descriptor_for_Image_Copy_Detection_CVPR_2022_paper.html
  3. $//ޙͷ.-1Λઢܗม׵ʹஔ͖׵͑ͨ .-1Λઢܗม׵ʹஔ͖׵͑Δͱɺ ҟͳΔը૾ม׵Λͯ͠΋ݩը૾͕ಉ͡ͳΒ͹ɺ$//͕ಉ͡ಛ௃ྔΛநग़͠Α͏ͱͯ͘͠ΕΔɻ w .-1Ͱ͸USBOTGPSNBUJPODPWBSJBOUGFBUVSFͷ֫ಘ͕ظ଴͞ΕΔɻ w ͜ΕʹΑΓɺಉ͡ը૾ʹҟͳΔը૾ม׵Λͨ͠ͱ͖ɺԾʹ$//͕ҟͳΔಛ௃ྔΛந ग़ͯ͠΋ɺ.-1ͷ͓͔͛Ͱ࠷ऴతʹಉ͡Α͏ͳಛ௃ྔ͕நग़Ͱ͖Δɻ w ݴ͍׵͑Δͱɺ.-1͕Χόʔͯ͘͠ΕΔͷͰɺಉ͡ը૾ʹҟͳΔը૾ม׵Λͨ͠ͱ

    ͖ɺ$//͸ҟͳΔಛ௃ྔΛநग़͍ͯ͠ΔՄೳੑ͕͋Δɻ w ීஈͳΒͦΕͰ΋͍͍͕ɺࠓճͷλεΫͰ͸JOWBSJBOU͕๬·͍͠ɻ w ಉ͡ը૾ʹҟͳΔը૾ม׵Λͯ͠΋ಉ͡ಛ௃ྔΛநग़͍ͨ͠ɻ w ͦ͜ͰɺࠓճͷλεΫͰ͸.-1Λઢܗม׵ʹஔ͖׵͑Δɻ w ಉ͡ը૾ʹҟͳΔը૾ม׵Λͯ͠΋ɺಉ͡ಛ௃ྔΛநग़ͤ͞Δૂ͍ɻ w $//͸ը૾ม׵͕͞Εͯ΋ɺݩ͕ಉ͡ը૾ͳΒಉ͡ಛ௃ྔΛநग़͠ͳ͍ͱ͍͚ͳ͘ ͳΔɻʢ.-1͸$//Λ؁΍͔͔ͨ͠΋͠Εͳ͍͕ɺઢܗม׵͸༰ࣻͤΜŕʂʣ w ࠷ऴతʹར༻͢Δಛ௃ྔʹ͸ީิ͕͋ΓɺఏҊख๏44$%Ͱ͸ᶄΛར༻ͨ͠ɻ w ᶃ$//ग़ྗʢUSVOLGFBUVSFʣ w ᶄઢܗม׵ͨ͠΋ͷʢQSPKFDUJPOGFBUVSFʣ https://openaccess.thecvf.com/content/CVPR2022/html/Pizzi_A_Self-Supervised_Descriptor_for_Image_Copy_Detection_CVPR_2022_paper.html
  4. 4DPSF4JNJMBSJUZ/PSNBMJ[BUJPOΛಋೖͨ͠ ಛ௃ྔۭؒʹࣹӨͨ͠ͱ͖ɺͲΕ͘Β͍ͷڑ཭ͳΒ͹ʮ͍ۙʯͱݴ͑Δͷ͔ʁ ͜ͷई౓͕σʔλʹґଘͤͣɺҰ؏ੑΛ࣋ͭΑ͏ʹਖ਼نԽͯ͠΍Δɻ w Ͳ͏΍ͬͯਖ਼نԽ͢Δͷ͔ʁʁ 
 ɹˠैདྷͷίαΠϯྨࣅ౓ʹόΠΞεΛ଍͢ w όΠΞε͸ۙ๣αϯϓϧͱͷڑ཭ฏۉʹΑͬͯࢉग़͢Δ w

    ࠓճ͸όΠΞεࢉग़ઐ༻ͷCBDLHSPVOEEBUBTFUΛ༻ҙͨ͠ʢόΠΞεࢉग़ʹSFGFSFODFը૾͸࢖Θͳ͍ʣ w R͸ΫΤϦʢྫ͑͹৽ن౤ߘ͞Εͨը૾ʣ w S͸ϦϑΝϨϯεʢྫ͑͹౤ߘࡁΈͷը૾ʣ w T͸ίαΠϯྨࣅ౓ w ࠷ۙ๪ͷOdOFOE൪໨·ͰͷαϯϓϧΛར༻ w ЌͰOPNBMJ[BUJPOͷ͔͔Γ۩߹Λௐ੔ https://openaccess.thecvf.com/content/CVPR2022/html/Pizzi_A_Self-Supervised_Descriptor_for_Image_Copy_Detection_CVPR_2022_paper.html
  5. ࣮ݧͷ֓ཁ σʔληοτɿ%*4$ w ֶश༻ʹສຕɺධՁ༻ʹສຕʢRVFSZʣʴສຕʢSFGFSFODFʣ w RVFSZը૾ͷ͏ͪສຕ͸SFGFSFODFը૾Λฤूͯ͠࡞੒ͨ͠DPQZͰ͋Δɻ λεΫ w SFGFSFODFը૾Λࢀরͯ͠ɺRVFSZը૾͕DPQZ͔൱͔Λ൑ఆ͢ΔλεΫɻ ධՁࢦඪɿNJDSPBWFSBHFQSFDJTJPO

    Ÿ"1  w αϯϓϧ୯ҐͰ"WFSBHF1SFDJTJPOͷฏۉΛࢉग़ͨ͠΋ͷɻ RVFSZ SFGFSFODF https://openaccess.thecvf.com/content/CVPR2022/html/Pizzi_A_Self-Supervised_Descriptor_for_Image_Copy_Detection_CVPR_2022_paper.html
  6. ߟ࡯ɿ&OUSPQZ-PTTͱ4DPSF/PSNBMJ[BUJPO͕ಛʹޮ͍͍ͯΔ༷ࢠ w4JN$-3͕ϕʔεϥΠϯ wUSVOL͸$//ͷग़ྗΛར༻ wQSPK͸ઢܗม׵ͨ͠΋ͷΛར༻ wϕʔεϥΠϯͱఏҊख๏ͷதؒతଘࡏͱͯ͠ 4JN$-3$%΋ධՁ w͜Ε͸ɺ&OUSPQZ-PTTҎ֎ͷఏҊख๏Λ 
 ద༻ͨ͠΋ͷʢ˞.-1ஔ͖׵͑΍(F.1PPMʣ w4JN$-3$%ˠ44$%΁ͷมԽɺ

    
 ͭ·Γ&OUSPQZ-PTTಋೖ͚ͩͰ 
 Ж"1͕໿޲্ʢˠʣ wЖ"14/͸4DPSF/PNBSJ[BUJPOΛ 
 ಋೖͨ͠৔߹ https://openaccess.thecvf.com/content/CVPR2022/html/Pizzi_A_Self-Supervised_Descriptor_for_Image_Copy_Detection_CVPR_2022_paper.html