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Deeply-Recursive Convolutional Network for Image Super-Resolution
- 16. 改善したアプローチ3 ー 数式では
• 再帰回数dでの出⼒ 𝑦7%(Output d)
– 𝑦9% = 𝑓'"()* 𝑥, 𝑔 %
𝑓"#$"% 𝑥 , 𝑑 = 1,2,3, … 𝐷
• 最終出⼒(Final Output)
– 𝑦7 = Σ%@A
B
𝜔% D 𝑦7%
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- 17. 誤差関数の設計
Immidiate Outputの誤差
– 𝑙A 𝜃 = Σ%@A
B
ΣG@A
H A
IBH
||𝑦 K − 𝑦7%
(K)
||I
Final Output の誤差
– 𝑙I 𝜃 = ΣG@A
H
||𝑦 K − Σ%@A
B
𝜔% D 𝑦7%
(K)
||I
Total の誤差
– 𝐿 𝜃 = 𝛼𝑙A 𝜃 + 1 − 𝛼 𝑙I 𝜃 + 𝛽||𝜃||I
• 𝛼:中間出力の重み
• 𝛽:Weight Decayの係数
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