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subinium avatar subinium commented on June 26, 2024

기존 StyleGAN의 문제점

  1. blob-like artifacts
    • AdaIN에 의해 발생한다고 판단
    • 작은 spike-type distribution이 feature map으로 들어올 때, 정규화를 통해 증가하고 영향을 끼침
    • 새로운 구조 제안
  2. Progressive GAN에서 발생하는 artifact
  • 치열이나 눈동자가 얼굴 방향에 안따라오는 현상
  • 새로운 고화질 생성용 구조 제안

Weight Demodulation

  • noise를 더해주는 부분을 변경 (norm 이후로 변경)
  • AdaIN (Instance Norm + scaling(mean/std)) 대신 conditional scaling (just std!)
  • 이 부분이 핵심인데 아직 이해 부족 (근데 재미가 너무 없는데...담에 다시...)

Progressive GAN 대체

  • Residual 사용

from deep-papers.

subinium avatar subinium commented on June 26, 2024

Reference

from deep-papers.

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