๐Ÿฅ— 3DGS ๋‹ค์ด์–ดํŠธ

1Sejong University2Chungang University3Sungkyunkwan University4Ewha Womans University5Seoul National University of Science & Technology
*deep daiv.Project Lead



Motivation

MLP ๊ธฐ๋ฐ˜์˜ NeRF๋ชจ๋ธ๊ณผ ๋‹ฌ๋ฆฌ point cloud ๊ธฐ๋ฐ˜์˜ 3DGS ๋ชจ๋ธ์€
์ €์žฅํ•ด์•ผ ํ•˜๋Š” ํŒŒ๋ผ๋ฏธํ„ฐ ์ˆ˜๊ฐ€ ๋งŽ๊ธฐ ๋•Œ๋ฌธ์— ๋ฉ”๋ชจ๋ฆฌ ์‚ฌ์šฉ๋Ÿ‰์ด ๋†’๋‹ค.
ํ€„๋ฆฌํ‹ฐ๋ฅผ ์œ ์ง€ํ•˜๋ฉด์„œ ๋ฉ”๋ชจ๋ฆฌ๋ฅผ ์ค„์—ฌ๋ณด์ž!



Pipeline


Method

๋น„์Šทํ•œ ์†์„ฑ์˜ ๊ฐ€์šฐ์‹œ์•ˆ๋“ค์„ ํด๋Ÿฌ์ŠคํŒ…ํ•˜์—ฌ ํ•˜๋‚˜์˜ ํฐ ๊ฐ€์šฐ์‹œ์•ˆ์œผ๋กœ ๋งŒ๋“ค์ž.
๋ณธ ๋ฉ”์†Œ๋“œ๋Š” ๊ฐ€์šฐ์‹œ์•ˆ ์ˆ˜๋ฅผ ์ค„์ž„์œผ๋กœ์จ ๋ฉ”๋ชจ๋ฆฌ ์‚ฌ์šฉ๋Ÿ‰์„ ์ค„์ผ ์ˆ˜ ์žˆ๋‹ค.

DBSCAN Clustering

ํด๋Ÿฌ์Šคํ„ฐ ์† ์—ฌ๋Ÿฌ ๊ฐ€์šฐ์‹œ์•ˆ๋“ค์„ ํ•˜๋‚˜์˜ ํฐ ๊ฐ€์šฐ์‹œ์•ˆ์œผ๋กœ ์ •์˜ํ•  ๋•Œ
๊ฐ€์šฐ์‹œ์•ˆ๋ผ๋ฆฌ ๋น„์Šทํ•œ ๊ฐ’์„ ๊ฐ–๋Š” Position๊ณผ Color๋Š” ํ‰๊ท ๊ฐ’์œผ๋กœ,
Opacity๋Š” pruning ๊ณผ์ •์—์„œ ์ œ๊ฑฐ๋˜์ง€ ์•Š๊ธฐ ์œ„ํ•ด ์ตœ๋Œ“๊ฐ’์œผ๋กœ ์„ค์ •ํ•œ๋‹ค.


Result

dbscan์„ 3๋ฒˆ ์ด์šฉํ•œ ๋ฐฉ์‹์€ DBSCAN_thrice์™€ 3DGS๋ฅผ ๋น„๊ตํ–ˆ์„ ๋•Œ
๊ฐ€์šฐ์‹œ์•ˆ ์ˆ˜๋Š” ์•ฝ 20๋งŒ๊ฐœ๊ฐ€ ์ค„์—ˆ๊ณ , ๋ฉ”๋ชจ๋ฆฌ ๋˜ํ•œ ์•ฝ 50MB๊ฐ€ ์ค„์—ˆ๋‹ค.

์ •๋Ÿ‰์  ํ‰๊ฐ€(3DGS vs DBSCAN_3)

์ •์„ฑ์  ํ‰๊ฐ€(3DGS vs DBSCAN_3)

Ours
3DGS
3DGS vs Ours
GT vs Ours
GT vs 3DGS

Iteration๋ณ„ Rendering ๋น„๊ต

Citations


      @Article{kerbl3Dgaussians,
        author       = {Kerbl, Bernhard and Kopanas, Georgios and Leimk{\"u}hler, Thomas and Drettakis, George},
        title        = {3D Gaussian Splatting for Real-Time Radiance Field Rendering},
        journal      = {ACM Transactions on Graphics},
        number       = {4},
        volume       = {42},
        month        = {July},
        year         = {2023},
        url          = {https://repo-sam.inria.fr/fungraph/3d-gaussian-splatting/}
       }