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PhysHanDI: Physics-Based Reconstruction of Hand-Deformable Object Interactions

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์นดํ…Œ๊ณ ๋ฆฌ
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Jihyun Lee, Changmin Lee, Donghwan Kim, Tae-Kyun Kim

๐Ÿ’ก ๊ฐœ์š”

๋ณธ ๋…ผ๋ฌธ์€ ๊ธฐ์กด ์—ฐ๊ตฌ๊ฐ€ ๋‹ค๋ฃจ๊ธฐ ์–ด๋ ค์› ๋˜, ์ฒœ์ด๋‚˜ ๋ด‰์ œ์ธํ˜•๊ณผ ๊ฐ™์ด ๋น„๊ฐ•์ฒด ๋ณ€ํ˜•์ด ์‹ฌํ•œ ๋ฌผ์ฒด์™€ ์†์˜ ์ƒํ˜ธ์ž‘์šฉ์„ 3D๋กœ ์žฌ๊ตฌ์„ฑํ•˜๋Š” ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๊ธฐ ์œ„ํ•œ PhysHanDI ํ”„๋ ˆ์ž„์›Œํฌ๋ฅผ ์ œ์•ˆํ•ฉ๋‹ˆ๋‹ค. PhysHanDI๋Š” 3D๋กœ ๋ณต์›๋œ ์†์˜ ์›€์ง์ž„์œผ๋กœ ์ธํ•œ ๋ฌผ๋ฆฌ์  ํž˜์„ ๊ธฐ๋ฐ˜์œผ๋กœ ๋ฌผ์ฒด์˜ ๋น„๊ฐ•์ฒด ๋ณ€ํ˜•์„ ์‹œ๋ฎฌ๋ ˆ์ด์…˜ํ•˜์—ฌ, ๋ฌผ๋ฆฌ์ ์œผ๋กœ ํƒ€๋‹นํ•˜๊ณ  ์†์˜ ์›€์ง์ž„๊ณผ ์ผ๊ด€์„ฑ ์žˆ๋Š” ์žฌ๊ตฌ์„ฑ์„ ๊ฐ€๋Šฅํ•˜๊ฒŒ ํ•ฉ๋‹ˆ๋‹ค. ๋˜ํ•œ, ๋ฌผ์ฒด ๋ณ€ํ˜• ์‹œ๋ฎฌ๋ ˆ์ด์…˜์ด ๋ฐ˜๋Œ€๋กœ ์† ์žฌ๊ตฌ์„ฑ์„ ๊ฐœ์„ ํ•˜๋Š” ์—ญ๋ฌผ๋ฆฌ(inverse physics) ํšจ๊ณผ๋„ ํ™œ์šฉํ•ฉ๋‹ˆ๋‹ค.

๐Ÿ”‘ ์‹œ์‚ฌ์  ๋ฐ ํ•œ๊ณ„

โ€ข
์‹ค์ œ ์„ธ๊ณ„์—์„œ ํ”ํžˆ ๋ณผ ์ˆ˜ ์žˆ๋Š” ๋น„๊ฐ•์ฒด ๋ณ€ํ˜• ๋ฌผ์ฒด์™€ ์†์˜ ์ƒํ˜ธ์ž‘์šฉ์„ ๋ฌผ๋ฆฌ์ ์œผ๋กœ ํƒ€๋‹นํ•˜๊ฒŒ 3D๋กœ ์žฌ๊ตฌ์„ฑํ•  ์ˆ˜ ์žˆ๋Š” ์ƒˆ๋กœ์šด ํ”„๋ ˆ์ž„์›Œํฌ๋ฅผ ์ œ์‹œํ–ˆ์Šต๋‹ˆ๋‹ค.
โ€ข
๋ฌผ์ฒด ๋ณ€ํ˜• ์‹œ๋ฎฌ๋ ˆ์ด์…˜์ด ์† ์žฌ๊ตฌ์„ฑ์„ ๊ฐœ์„ ํ•˜๋Š” ์—ญ๋ฌผ๋ฆฌ์  ์ ‘๊ทผ์„ ํ†ตํ•ด ์ƒํ˜ธ์ž‘์šฉ ์žฌ๊ตฌ์„ฑ์˜ ์ •ํ™•๋„๋ฅผ ๋†’์˜€์Šต๋‹ˆ๋‹ค.
โ€ข
์‹คํ—˜ ๊ฒฐ๊ณผ, ๋ณธ ํ”„๋ ˆ์ž„์›Œํฌ๊ฐ€ ๊ธฐ์กด ์ตœ์‹  ๊ธฐ์ˆ (state-of-the-art baseline) ๋Œ€๋น„ ์žฌ๊ตฌ์„ฑ ๋ฐ ๋ฏธ๋ž˜ ์˜ˆ์ธก ์„ฑ๋Šฅ์—์„œ ์šฐ์ˆ˜ํ•จ์„ ์ž…์ฆํ–ˆ์Šต๋‹ˆ๋‹ค.
โ€ข
์ œ์•ˆ๋œ ๋ฐฉ๋ฒ•๋ก ์˜ ์—ฐ์‚ฐ๋Ÿ‰ ๋ฐ ์‹ค์‹œ๊ฐ„ ์ฒ˜๋ฆฌ ๊ฐ€๋Šฅ์„ฑ์— ๋Œ€ํ•œ ์ถ”๊ฐ€์ ์ธ ๊ฒ€์ฆ์ด ํ•„์š”ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
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