論文紹介：ArcFace: Additive Angular Margin Loss for Deep Face Recognition

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Jiankang Deng, Jia Guo, Niannan Xue, Stefanos Zafeiriou , "ArcFace: Additive Angular Margin Loss for Deep Face Recognition" CVPR2019 https://openaccess.thecvf.com/content_CVPR_2019/html/Deng_ArcFace_Additive_Angular_Margin_Loss_for_Deep_Face_Recognition_CVPR_2019_paper.html

Technology

ArcFace: Additive Angular Margin
Loss for Deep Face Recognition
Jiankang Deng, Jia Guo, Niannan Xue, Stefanos Zafeiriou
(CVPR2019)
2024/5/16

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•
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• 3 1
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• Center Loss [Wen+, ECCV2016]
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• face verification
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• ArcFace
n
• ArcFace

nArcFace (Additive Angular Margin Loss)
•
n (2019 )

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論文紹介：ArcFace: Additive Angular Margin Loss for Deep Face Recognition

1. ArcFace: Additive Angular Margin Loss for Deep Face Recognition Jiankang Deng, Jia Guo, Niannan Xue, Stefanos Zafeiriou (CVPR2019) 2024/5/16

2. n • • n • ArcFace (Additive Angular Margin Loss) •

3. n • • Softmax loss • • Triplet loss [Wang+ arXiv2014] • 3 1 • Query Positive(Query ) Negative( ) • Query-Negative Query-Positive Triplet loss[Wang+ arXiv2014]

4. n • Softmax loss • 𝑊 ∈ 𝑅!×# 𝑛 • • Triplet loss • 3 • • semihard sample mining • •

5. nSoftmax loss • Center Loss [Wen+, ECCV2016] • • • • Sphereface [Liu+, CVPR2017], CosFace[Wang+, CVPR2018] • • • • Center loss [Wen+, ECCV2016]

6. n softmax Loss n • 𝑥$ ∈ 𝑅!: • 𝑦$: 𝑥$ • 𝑊 ∈ 𝑅!×#: • 𝑏%: , 𝑁: , 𝑛: nArcFace

7. n • 𝑊 % & 𝑥$ + 𝑏% 𝑏% 0 𝑊 % & 𝑥$ • 𝑊 % & 𝑥$ = 𝑊 % 𝑥$ 𝑐𝑜𝑠 𝜃% • 𝜃% 𝑊 % 𝑥$ • 𝑊 % = 1, 𝑥$ = 1 𝑥$ = 𝑠 n • 𝑊 % 𝑥$ • 𝑊 % • s Softmax Loss • 𝑥! ∈ 𝑅" : • 𝑦!: 𝑥! • 𝑊 # ∈ 𝑅"× : 𝑗 • 𝑏#: , 𝑁: • 𝑛:

8. nArcFace • 𝑊 % 𝑥$ 𝑚 • n 𝑚 •

9. SphereFace CosFace nSphereFace, CosFace • n • • ArcFace( ), SphereFace, CosFace • 𝑚 • 𝑚':SphereFace • 𝑚(: ArcFace • 𝑚): CosFace

10. SphereFace CosFace n • n • ArcFace • • SphereFace, CosFace •

11. n • n 1. • ResNet50 ResNet100 2. BN-Dropout-FC-BN • 512 n • 𝑠 64 • 𝑚 0.5

12. Ablation Study on Losses n 𝑚 • 0.5 n ( CM) • SphereFace CosFace • ArcFace

13. LFW, YTF nLFW, YTF [Wolf+, CVPR2011] • face verification n • ArcFace n • ArcFace

14. nArcFace (Additive Angular Margin Loss) • n (2019 )

論文紹介：ArcFace: Additive Angular Margin Loss for Deep Face Recognition

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