๐Ÿ‘๏ธ Computer Vision/GAN

๐Ÿ‘๏ธ Computer Vision/GAN

[GAN] ์ƒ์„ฑ์  ์ ๋Œ€ ์‹ ๊ฒฝ๋ง(Generative Adversarial Networks)์ด๋ž€?

Generative Adversarial Networks Generative Adversarial Networks์€ ๋‘ ๊ฐœ ์ด์ƒ์˜ ์‹ ๊ฒฝ๋ง์ด ์„œ๋กœ๋ฅผ ํ–ฅํ•˜๊ฒŒ ํ•˜๊ณ , ์„œ๋กœ ๋Œ€ํ•ญํ•˜๋“ฏ์ด ํ›ˆ๋ จํ•˜๊ฒŒ ํ•จ์œผ๋กœ์จ, ๊ฒฐ๊ณผ์ ์œผ๋กœ ์ƒ์„ฑ ๋ชจ๋ธ(generative model)์„ ์‚ฐ์ถœํ•ด๋‚ธ๋‹ค. GAN์˜ ์ด์  ๋ฐ์ดํ„ฐ๊ฐ€ ํ•œ์ •๋œ ์ƒํ™ฉ์—์„œ๋„ ์ผ๋ฐ˜ํ™”(Generalization)๋ฅผ ํ•  ์ˆ˜ ์žˆ๋‹ค. ์ž‘์€ ๋ฐ์ดํ„ฐ์…‹์„ ๊ฐ€์ง€๊ณ ๋„ ์ƒˆ๋กœ์šด ์žฅ๋ฉด์„ ์ƒ๊ฐํ•  ์ˆ˜ ์žˆ๋‹ค. ๋ชจ์กฐ ๋ฐ์ดํ„ฐ(simulated data)๋ฅผ ๋”์šฑ ์ง„์งœ์ฒ˜๋Ÿผ ๋ณด์ด๊ฒŒ ํ•  ์ˆ˜ ์žˆ๋‹ค. Generative Modeling & Discriminative Modeling ํŒ๋ณ„ ๋ชจ๋ธ๋ง(Discriminative Modeling) ๊ทธ๋ฆผ์„ ์‚ดํŽด๋ณธ ๋‹ค์Œ์— ํ•ด๋‹น ๊ทธ๋ฆผ์˜ style์„ ์ •ํ•˜๋Š” ์ผ์€ ๋ฌด์—‡์ธ๊ฐ€๋ฅผ ํŒ๋‹จํ•˜๋Š” ..

๐Ÿ‘๏ธ Computer Vision/GAN

[GAN] GAN(Generative Adversarial Network) ๊ธฐ์ดˆ ๊ฐœ๋…

Supervised Learning vs Unsupervised Learning ์ง€๋„ ํ•™์Šต Supervised Learning์—๋Š” ๋Œ€ํ‘œ์ ์œผ๋กœ Discriminative Model์ด ์žˆ๋‹ค. ์ด์—๋Š” ๋กœ์ง€์Šคํ‹ฑ ํšŒ๊ท€๋ถ„์„, ๋‰ด๋Ÿด ๋„คํŠธ์›Œํฌ ๋“ฑ์ด ํ•ด๋‹น๋œ๋‹ค. Discriminative Model์€ Input์ด ์ฃผ์–ด์ง€๋ฉด Input์ด ํ•ด๋‹นํ•˜๋Š” ํด๋ž˜์Šค๋ฅผ ๋งž์ถ”๊ธฐ ์œ„ํ•ด ํ•™์Šตํ•˜๊ฒŒ ๋œ๋‹ค. ๋น„์ง€๋„ ํ•™์Šต Unsupervised Learning์—๋Š” ๋Œ€ํ‘œ์ ์œผ๋กœ Generative Model์ด ์žˆ๋‹ค. Generative ๋ชจ๋ธ์€ Label์ด ์—†์ด ํ•™์Šตํ•˜๊ฒŒ ๋˜๋ฉฐ, ํ•™์Šต ๋ฐ์ดํ„ฐ์˜ ๋ถ„ํฌ๋ฅผ ํ•™์Šตํ•˜๋Š” ๊ฒƒ์ด ๋ชฉ์ ์ด๋‹ค. GAN(Generative Adversarial Network)์ด๋ž€? GAN(Generative Adversarial Network)์ด..

Junyeong Son
'๐Ÿ‘๏ธ Computer Vision/GAN' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๊ธ€ ๋ชฉ๋ก