[๋…ผ๋ฌธ ๋ฆฌ๋ทฐ] Differential Angular Imaging for Material Recognition
ยท
๐Ÿ› Research/Material & Texture Recognition
CVPR2017์— ๊ฒŒ์žฌ๋œ material recognition ๊ด€๋ จ ๋…ผ๋ฌธ์ž…๋‹ˆ๋‹ค. ๋ณธ ๋…ผ๋ฌธ์—์„œ๋Š” ์ด๋ฏธ์ง€ ์บก์ฒ˜์˜ small anugular variation๋ฅผ ์ด์šฉํ•˜์—ฌ ์žฌ์งˆ ๋ถ„๋ฅ˜ ์„ฑ๋Šฅ์„ ๋†’์ด๋Š” DAIN(Differential Angular Imaging Network)๋ฅผ ์ œ์•ˆํ•ฉ๋‹ˆ๋‹ค. Introduction Real world scene์€ ๋‚˜๋ฌด, ๋Œ€๋ฆฌ์„, ํ™, ๊ธˆ์†, ์„ธ๋ผ๋ฏน ๋“ฑ๊ณผ ๊ฐ™์€ ๋‹ค์–‘ํ•œ ์žฌ์งˆ๋กœ ๋งŒ๋“ค์–ด์ง„ ํ‘œ๋ฉด์œผ๋กœ ๊ตฌ์„ฑ๋˜์–ด ์žˆ๊ณ , ์ด๋Š” ์ด๋ฏธ์ง€์—์„œ ํ’๋ถ€ํ•œ visual variation์„ ๋ฐœ์ƒ์‹œํ‚ต๋‹ˆ๋‹ค. Material recognition์€ autonomous agent, human-machine ์‹œ์Šคํ…œ๊ณผ ๊ฐ™์€ ์‘์šฉ ๋ถ„์•ผ์— ๋Œ€ํ•œ ์ž์„ธํ•œ ์žฌ์งˆ ์ •๋ณด๋ฅผ ์ œ๊ณตํ•˜๋Š” ๊ฒƒ์„ ๋ชฉํ‘œ๋กœ ์ตœ๊ทผ ๋ช‡ ๋…„ ๋™์•ˆ ํ™œ๋ฐœํ•œ ์—ฐ๊ตฌ๊ฐ€ ์ง„ํ–‰๋˜์—ˆ์Šต..
[๋…ผ๋ฌธ ๋ฆฌ๋ทฐ] A 4D Light-Field Dataset and CNN Architectures for Material Recognition
ยท
๐Ÿ› Research/Material & Texture Recognition
๋ณธ ๋…ผ๋ฌธ์€ ECCV2016์— ๊ฒŒ์žฌ๋œ ๋…ผ๋ฌธ์œผ๋กœ 4D light-field dataset์„ ์ฒ˜์Œ์œผ๋กœ ์žฌ์งˆ ์ธ์‹์— ์‚ฌ์šฉํ•œ ์—ฐ๊ตฌ ์ž…๋‹ˆ๋‹ค. Light field? light field ๋Š” ๋น›์„ ์‹œ๊ณต๊ฐ„ field์—์„œ ํ‘œํ˜„ํ•˜๊ธฐ ์œ„ํ•œ plenoptic function์œผ๋กœ ์ •์˜ํ•  ์ˆ˜ ์žˆ๋Š”๋ฐ, ์ด์ค‘์—์„œ ๋น›์˜ ๋ฐฉํ–ฅ(๊ฐ€๋กœ ๊ฐ๋„, ์„ธ๋กœ๊ฐ๋„), ๋น›์˜ 2์ฐจ์› ์œ„์น˜(x,y) 4๊ฐœ์˜ ํŒŒ๋ผ๋ฏธํ„ฐ๋งŒ์„ ์‚ฌ์šฉํ•˜์—ฌ 4D light-field๋ผ๊ณ  ํ•ฉ๋‹ˆ๋‹ค. Lytro Illum ๋“ฑ์˜ 4D light-field ์นด๋ฉ”๋ผ๋Š” micro lens array๋ฅผ main lens์™€ photo sensor ์‚ฌ์ด์— ์œ„์น˜์‹œ์ผœ ์˜ค๋ธŒ์ ํŠธ ํ•œ ์ง€์ ์—์„œ ์—ฌ๋Ÿฌ ๋ฐฉํ–ฅ์œผ๋กœ ๋ฐฉ์‚ฌ๋˜์–ด main lenz๋ฅผ ํ†ต๊ณผํ•˜๋Š” ๋น›์„ micro lens๋กœ ๋ถ„๋ฆฌ์‹œ์ผœ ๋”ฐ๋กœ ์ €์žฅ์‹œํ‚ฌ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ด๋Š”..
[๋…ผ๋ฌธ ๋ฆฌ๋ทฐ] Deep Texture Recognition via Exploiting Cross-Layer Statistical Self-Similarity∗†‡
ยท
๐Ÿ› Research/Material & Texture Recognition
๋ณธ ๋…ผ๋ฌธ์€ CVPR2021์— ๊ฒŒ์žฌ๋œ ๋…ผ๋ฌธ์ด๋ฉฐ texture recogntion(texture, material datatset) SOTA๋ฅผ ๋‹ฌ์„ฑํ•œ ์—ฐ๊ตฌ์ž…๋‹ˆ๋‹ค. Texture Recognition ? Texture Recognition์€ Image classification ๋ถ„์•ผ์˜ ์ผ๋ถ€๋กœ object(e.g. ๊ฐ•์•„์ง€,๊ณ ์–‘์ด,์‚ฌ์Šด,ํŠธ๋Ÿญ,...etc.)๊ฐ€ ์•„๋‹Œ texture(์ฒดํฌ๋ฌด๋Šฌ, ์ค„๋ฌด๋Šฌ, ํŽ˜์ด์ฆ, ๋ฐง์ค„, etc.)๋ฅผ ๋ถ„๋ฅ˜ํ•˜๋Š” ์ž‘์—…์ž…๋‹ˆ๋‹ค. object๋Š” ํ•˜๋‚˜์˜ class๊ฐ€ ์–ด๋Š์ •๋„์˜ deformation(object์˜ ์„ธ๋ถ€ class, object๋ฅผ ๋ณด๋Š” ๊ฐ๋„, object์˜ ์ž์„ธ ์ฐจ์ด)์„ ๊ฐ€์ง€์ง€๋งŒ ์œ ์‚ฌํ•œ shape์„ ๊ฐ€์ง€๋ฏ€๋กœ globalํ•œ shape์ •๋ณด๊ฐ€ ์ฃผ์š”ํ•œ feature๋กœ ์‚ฌ์šฉ๋ฉ๋‹ˆ๋‹ค. ํ•˜์ง€๋งŒ, te..