๋ณธ๋ฌธ ๋ฐ”๋กœ๊ฐ€๊ธฐ

mesh4

[Notable] Explicit Representation VS Implicit Representation 1. Explicit Representation (๋ช…์‹œ์  ํ‘œํ˜„)๐Ÿ” ์ •์˜:Explicit Representation์€ ๋ฐ์ดํ„ฐ๋ฅผ ์ง์ ‘์ ์ด๊ณ  ๊ตฌ์ฒด์ ์œผ๋กœ ํ‘œํ˜„ํ•˜๋Š” ๋ฐฉ์‹์ž…๋‹ˆ๋‹ค.๋ชจ๋ธ์ด ๋‹ค๋ฃจ๋Š” ๊ตฌ์กฐ, ํŠน์„ฑ, ๋ฐ์ดํ„ฐ ํฌ์ธํŠธ ๋“ฑ์ด ๋ช…ํ™•ํ•œ ํ˜•ํƒœ๋กœ ์ •์˜๋ฉ๋‹ˆ๋‹ค.๐Ÿ“Š ์˜ˆ์‹œ:์ด๋ฏธ์ง€ ๋ฐ์ดํ„ฐ: ํ”ฝ์…€ ๊ฐ’์œผ๋กœ ์ด๋ฃจ์–ด์ง„ RGB ์ด๋ฏธ์ง€ ๊ฐ ํ”ฝ์…€์˜ ์ƒ‰์ƒ, ์œ„์น˜๊ฐ€ ์ •ํ™•ํ•˜๊ฒŒ ์ €์žฅ๋จ3D ๋ชจ๋ธ๋ง: ๋ฉ”์‰ฌ(Mesh) ๊ธฐ๋ฐ˜ ๋ชจ๋ธ: ์ (vertex)๊ณผ ๋ฉด(face)์˜ ์ขŒํ‘œ๊ฐ€ ๋ช…ํ™•ํ•˜๊ฒŒ ๊ธฐ๋ก๋จํ†ต๊ณ„ ๋ชจ๋ธ: ๊ฐ€์šฐ์‹œ์•ˆ ๋ถ„ํฌ: ํ‰๊ท (μ)๊ณผ ๋ถ„์‚ฐ(σ²)์ด ๋ช…ํ™•ํ•˜๊ฒŒ ์ •์˜๋จโœ… ์žฅ์ : ์ง๊ด€์ ์ด๊ณ  ํ•ด์„์ด ์‰ฌ์›€ ๋ฐ์ดํ„ฐ๋‚˜ ๊ตฌ์กฐ์˜ ๋ณ€๊ฒฝ์ด ์šฉ์ด ๋ช…ํ™•ํ•œ ์ˆ˜์‹ ๋˜๋Š” ๊ทœ์น™์— ๊ธฐ๋ฐ˜โŒ ๋‹จ์ : ๋ณต์žกํ•œ ๋ฐ์ดํ„ฐ๋ฅผ ํ‘œํ˜„ํ• ์ˆ˜๋ก ๋น„์šฉ์ด ํผ (๋ฉ”๋ชจ๋ฆฌ, ๊ณ„์‚ฐ๋Ÿ‰ ์ฆ๊ฐ€) ๊ณ ์ฐจ์› ๋ฐ์ดํ„ฐ์—์„œ๋Š” ๋น„ํšจ์œจ์ ์ผ ์ˆ˜ .. 2025. 1. 31.
[Notable] NeRF vs Voxel vs Mesh 1. NeRF (Neural Radiance Fields)์˜ ์žฅ์ :์„ธ๋ฐ€ํ•œ ๋””ํ…Œ์ผ: NeRF๋Š” ๋ณผ๋ฅจ ๋ Œ๋”๋ง์„ ์‚ฌ์šฉํ•˜์—ฌ ๋งค์šฐ ์„ธ๋ฐ€ํ•œ ์žฅ๋ฉด์„ ์ƒ์„ฑํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ด๋ฅผ ํ†ตํ•ด ๋ณต์žกํ•œ ์กฐ๋ช… ํšจ๊ณผ, ๋””ํ…Œ์ผํ•œ ์งˆ๊ฐ, ๋ชจ๋“  ๋ฐฉํ–ฅ์—์„œ์˜ ๋ Œ๋”๋ง์—์„œ ๋›ฐ์–ด๋‚œ ํ’ˆ์งˆ์„ ์–ป์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ํŠนํžˆ, ๋น›์˜ ๋ฐ˜์‚ฌ์™€ ๊ตด์ ˆ ๋“ฑ ๋ฌผ๋ฆฌ์  ์ƒํ˜ธ์ž‘์šฉ์„ ์„ธ๋ฐ€ํ•˜๊ฒŒ ๋ชจ๋ธ๋งํ•  ์ˆ˜ ์žˆ๋‹ค๋Š” ์ ์—์„œ ๊ณ ํ•ด์ƒ๋„์˜ ์‚ฌ์‹ค์ ์ธ ๊ฒฐ๊ณผ๋ฅผ ์–ป์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.์—ฐ์†์ ์ธ ํ‘œํ˜„: NeRF๋Š” 3D ๊ณต๊ฐ„์„ ์—ฐ์†์ ์ธ ๋ฐ€๋„์™€ ์ƒ‰์ƒ ๊ฐ’์œผ๋กœ ๋ชจ๋ธ๋งํ•ฉ๋‹ˆ๋‹ค. ์ด ๋ฐฉ์‹์€ 3D ์žฅ๋ฉด์„ ๋””์ง€ํ„ธํ™”ํ•  ๋•Œ ๋ถ€๋“œ๋Ÿฝ๊ณ  ์ž์—ฐ์Šค๋Ÿฌ์šด ์ „ํ™˜์„ ๊ฐ€๋Šฅํ•˜๊ฒŒ ํ•˜์—ฌ ๋” ๊ณ ๊ธ‰์Šค๋Ÿฌ์šด ์‹œ๊ฐ์  ํšจ๊ณผ๋ฅผ ์ œ๊ณตํ•ฉ๋‹ˆ๋‹ค.๊ณ ํ’ˆ์งˆ ๋ Œ๋”๋ง: NeRF๋Š” ์ด๋ฏธ์ง€ ๊ธฐ๋ฐ˜์˜ 3D ํ•ฉ์„ฑ์—์„œ ๋งค์šฐ ์‚ฌ์‹ค์ ์ธ ๊ฒฐ๊ณผ๋ฅผ ์ œ๊ณตํ•ฉ๋‹ˆ๋‹ค. ํŠนํžˆ ์‚ฌ์ง„์ฒ˜๋Ÿผ ์ž์—ฐ์Šค๋Ÿฌ์šด ์กฐ๋ช…๊ณผ.. 2025. 1. 21.
[Code Build][Ubuntu] SuGaR: Surface-Aligned Gaussian Splatting for Efficient 3D Mesh Reconstruction and High-Quality Mesh Rendering https://github.com/Anttwo/SuGaR?tab=readme-ov-file GitHub - Anttwo/SuGaR: [CVPR 2024] Official PyTorch implementation of SuGaR: Surface-Aligned Gaussian Splatting for Efficient 3D[CVPR 2024] Official PyTorch implementation of SuGaR: Surface-Aligned Gaussian Splatting for Efficient 3D Mesh Reconstruction and High-Quality Mesh Rendering - Anttwo/SuGaRgithub.com  [ required ubuntu environment]ubunt.. 2025. 1. 10.
[Paper Review] Pixel2Mesh: Generating 3D Mesh Models from Single RGB Images Pixel2Mesh: Generating 3D Mesh Models from Single RGB ImagesNanyang Wang1 โ‹†, Yinda Zhang2 โ‹†, Zhuwen Li3 โ‹†, Yanwei Fu4, Wei Liu5, Yu-Gang Jiang1 †1 Shanghai Key Lab of Intelligent Information Processing, School of Computer Science, Fudan University2 Princeton University 3 Intel Labs 4 School of Data Science, Fudan University 5 Tencent AI Lab Abstract.์ด ๋…ผ๋ฌธ์€ ๋‹จ์ผ ์ปฌ๋Ÿฌ ์ด๋ฏธ์ง€๋กœ๋ถ€ํ„ฐ 3D ํ˜•์ƒ์„ ์‚ผ๊ฐํ˜• ๋ฉ”์‰ฌ(triangular me.. 2024. 11. 6.