画像生成で遊ぶ / osc2021niigata

Open Source Conference 2021 Online/Niigata で発表した資料

Transcript

1. ը૾ੜ੒Ͱ༡Ϳ
   Open Source Conference 2021 Online/Niigata
   2021-10-02 @kasacchiful
   

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2. Classmethod, Inc.
   
   
   Solutions Architect / Software Develper
   
   
   Favorite:
   
   
   Community:
   
   
   • JAWS-UG Niigata
   
   
   • Python ML in Niigata
   
   
   • JaSST Niigata
   
   
   • ASTER
   
   
   • SWANII
   
   
   • etc.
   
   
   Hiroshi Kasahara
   @kasacchiful
   @kasacchiful
   2
   

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3. Pythonػցֶशษڧձ in Niigata
   IUUQTQZNMOJJHBUBDPOOQBTTDPN
   

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4. աڈͷOSC NiigataͰͷൃද
   IUUQTTQFBLFSEFDLDPNLBTBDDIJGVMPTDOJJHBUB IUUQTTQFBLFSEFDLDPNLBTBDDIJGVMPTDOJJHBUB
   

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5. ը૾ੜ੒ͷϞσϧ
   σʔλΛֶश
   ֶशͨ͠σʔλʹࣅͨ
   
   
   σʔλΛ৽ͨʹੜ੒
   

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6. ը૾ੜ੒ͷϞσϧ
   • ΦʔτΤϯίʔμ
   
   
   • σʔλͷಛ௃Λѹॖ͠ɺॏཁͳಛ௃͚ͩ࢒ͨ͠ޙɺ෮ݩ
   
   
   • ఢରతੜ੒ωοτϫʔΫ (GAN)
   
   
   • ِ෺Λੜ੒͢Δ Generator ͱɺِ෺Λݟൈ͘ Discriminator ͕ڝ
   ͍߹͏Α͏ʹֶश͢Δ͜ͱͰਫ਼౓Λ্͛Δ
   

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7. ΦʔτΤϯίʔμ
   • σʔλͷಛ௃Λѹॖ͠ɺॏཁͳಛ௃͚ͩ࢒ͨ͠ޙɺ෮ݩ
   
   
   • ग़ྗ͕ೖྗΛ࠶ݱ͢ΔΑ͏ʹֶश
   
   
   • தؒ૚͸ೖग़ྗ૚ΑΓখ͘͞
   

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8. ఢରతੜ੒ωοτϫʔΫ (GAN)
   • 2ͭͷϞσϧΛޓ͍ʹڝΘͤΔΑ͏ʹֶश͢Δ͜ͱͰ
   σʔλΛੜ੒
   
   
   • Generator
   
   
   • ϥϯμϜͳϊΠζΛೖྗͱͯ͠ɺDiscriminator͕
   ຊ෺ͱؒҧ͏Α͏ͳσʔλΛੜ੒͢Δ
   
   
   • Discriminator
   
   
   • ຊ෺ͷσʔλͱGeneratorͷੜ੒σʔλΛਖ਼͘͠
   ൑ผ͢ΔΑ͏ʹֶश͢Δ
   

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9. ओͳ༻్
   • ΦʔτΤϯίʔμ
   
   
   • ҟৗݕ஌
   
   
   • ϊΠζআڈ
   
   
   • GAN
   
   
   • ը૾ੜ੒
   
   
   • ը૾ΞϨϯδ (ը෩ͷมߋͳͲ)ɺը૾ԋࢉ ("Smailing Woman” - “Neutral Woman”
   + “Neutral Man” = “Smailing Man”)
   
   
   • ଞʹ΋Ԡ༻ଟ਺…
   

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10. StyleGAN2 Ͱ ਓ෺ը૾ੜ੒αΠτ
    https://thispersondoesnotexist.com/
    

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11. ࠓճͷσϞ
    

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12. σϞͷ಺༰
    • Google ColaboratoryͰ࣮ߦࡁͷ಺༰Λ͓ݟͤ͠·͢ɻ
    
    
    • https://github.com/kasacchiful/osc2021niigata
    
    
    • VAE (Variational Auto Encoder)
    
    
    • MNISTͷ਺ࣈը૾σʔλΛ࢖ͬͯɺજࡏม਺ΛมԽͤ͞Δ͜ͱͰը૾Λ࡞Γग़͢
    
    
    • CycleGAN
    
    
    • അ͔ΒγϚ΢Ϛ΁ม׵
    
    
    • Ґஔ΍ܗঢ়͕όϥόϥͰ΋ɺྔ͑͋͞Ε͹͍͍ײ͡ʹม׵Ͱ͖ͯ͠·͏
    

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13. Kerasͷαϯϓϧίʔυ
    • VAE:
    
    
    • https://keras.io/examples/generative/vae/
    
    
    • CycleGAN:
    
    
    • https://keras.io/examples/generative/cyclegan/
    

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14. ·ͱΊ
    • ը૾ੜ੒Ͱ༡ΜͰΈͨ
    
    
    • αϯϓϧ΋ͨ͘͞Μެ։͞Ε͍ͯΔͷͰɺ༡ͼ΍͍͢
    

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15. ͓͠·͍
    

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