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IDArb: Intrinsic Decomposition for Arbitrary Number of Input Views and Illuminations

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AI Generated ๐Ÿค— Daily Papers Computer Vision 3D Vision ๐Ÿข Chinese University of Hong Kong
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Table of Contents

2412.12083
Zhibing Li et el.
๐Ÿค— 2024-12-17

โ†— arXiv โ†— Hugging Face โ†— Papers with Code

TL;DR
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Traditional methods for separating an object’s true color and material from lighting effects in images (intrinsic decomposition) struggle with long processing times and inaccuracies. Optimization-based methods require hours and often mix lighting with material, while learning-based methods, though faster, are inconsistent across different viewpoints. Existing datasets for this task are also limited in scope and diversity, making it hard to train truly robust models. Accurate intrinsic decomposition is crucial for applications like relighting objects in images, editing materials, and even creating realistic 3D models.

IDArb tackles these challenges using a new AI model that can handle any number of images of an object under different lighting conditions. It employs clever attention mechanisms to ensure consistent results across all viewpoints and disentangles material from lighting. Itโ€™s also trained on a new, massive dataset, ARB-Objaverse, containing millions of images with diverse objects and lighting, resulting in more accurate and robust intrinsic decomposition. This enables significantly better results in various applications like relighting, material editing, and 3D reconstruction.

Key Takeaways
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Why does it matter?
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IDArb presents a significant advancement in intrinsic image decomposition, impacting researchers in computer vision and graphics. It offers a robust, efficient solution for multi-view decomposition under varied lighting, which is crucial for realistic 3D content creation. The introduction of ARB-Objaverse dataset enables future research on robust intrinsic decomposition models. Its application in relighting, material editing, and 3D reconstruction opens new possibilities for realistic content creation and editing.


Visual Insights
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๐Ÿ”ผ IDArb๋Š” ์ œ์•ฝ ์—†๋Š” ์กฐ๋ช… ์กฐ๊ฑด์—์„œ ๋‹ค์–‘ํ•œ ์ˆ˜์˜ ๋ทฐ๋ฅผ ์ž…๋ ฅ๋ฐ›์•„ ๋‚ด์žฌ ๋ถ„ํ•ด๋ฅผ ์ˆ˜ํ–‰ํ•ฉ๋‹ˆ๋‹ค. ํ•™์Šต ๊ธฐ๋ฐ˜ ๋ฐฉ๋ฒ•๊ณผ ๋น„๊ตํ•˜์—ฌ ๋‹ค์ค‘ ๋ทฐ ์ผ๊ด€์„ฑ์„ ๋‹ฌ์„ฑํ•˜๊ณ  ์ตœ์ ํ™” ๊ธฐ๋ฐ˜ ๋ฐฉ๋ฒ•๊ณผ ๋น„๊ตํ•˜์—ฌ ํ•™์Šต๋œ ์‚ฌ์ „ ์ง€์‹์„ ํ†ตํ•ด ์กฐ๋ช… ํšจ๊ณผ์—์„œ ๋‚ด์žฌ ์š”์†Œ๋ฅผ ๋” ์ž˜ ๋ถ„๋ฆฌํ•ฉ๋‹ˆ๋‹ค. ์ด๋ฏธ์ง€ ์žฌ์กฐ๋ช… ๋ฐ ์žฌ์งˆ ํŽธ์ง‘, ์‚ฌ์ง„ ์ธก๋Ÿ‰ ์Šคํ…Œ๋ ˆ์˜ค, 3D ์žฌ๊ตฌ์„ฑ๊ณผ ๊ฐ™์€ ๋‹ค์–‘ํ•œ ์‘์šฉ ๋ถ„์•ผ๋ฅผ ํ–ฅ์ƒ์‹œํ‚ฌ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

read the captionFigure 1: IDArb tackles intrinsic decomposition for an arbitrary number of views under unconstrained illumination. Our approach (a) achieves multi-view consistency compared to learning-based methods and (b) better disentangles intrinsic components from lighting effects via learnt priors compared to optimization-based methods. Our method could enhance a wide range of applications such as image relighting and material editing, photometric stereo, and 3D reconstruction.
AlbedoNormalMetallicRoughness
SSIMโ†‘PSNRโ†‘Cosine Similarity โ†‘MSE โ†“MSE โ†“
IID0.90127.35-0.1920.131
RGBโ†”X0.90228.090.8340.1620.347
IntrinsicAnything0.90128.17---
GeoWizard--0.871--
Ours(single)0.93532.790.9280.0370.058
Ours(multi)0.93733.620.9410.0160.033

๐Ÿ”ผ IDArb๊ฐ€ ๋‹ค๋ฅธ ๊ธฐ์ค€ ๋ชจ๋ธ๋“ค๊ณผ ๋น„๊ตํ•˜์—ฌ ๋ชจ๋“  ์ง€ํ‘œ(์•Œ๋ฒ ๋„, ๋…ธ๋ฉ€, ๋ฉ”ํƒˆ๋ฆญ, ๋Ÿฌํ”„๋‹ˆ์Šค)์—์„œ ์ตœ๊ณ ์˜ ์„ฑ๋Šฅ์„ ๋‹ฌ์„ฑํ•จ์„ ๋ณด์—ฌ์ฃผ๋Š” ์ •๋Ÿ‰์  ํ‰๊ฐ€ ๊ฒฐ๊ณผ๋ฅผ ๋‚˜ํƒ€๋‚ธ ํ‘œ์ž…๋‹ˆ๋‹ค. IDArb๋Š” ๋‹จ์ผ ๋ทฐ ๋ฐ ๋‹ค์ค‘ ๋ทฐ ์„ค์ • ๋ชจ๋‘์—์„œ ๋‹ค๋ฅธ ๋ฐฉ๋ฒ•๋“ค๋ณด๋‹ค ์šฐ์ˆ˜ํ•œ ์„ฑ๋Šฅ์„ ๋ณด์ž…๋‹ˆ๋‹ค.

read the captionTable 1: Quantitative evaluation of IDArb against baselines.ย IDArb consistently achieves the best results among all albedo, normal, metallic and roughness metrics.

In-depth insights
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Intrinsic Decomp
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**๋ณธ์งˆ์  ๋ถ„ํ•ด(Intrinsic Decomp)**๋Š” ์ปดํ“จํ„ฐ ๋น„์ „ ๋ฐ ๊ทธ๋ž˜ํ”ฝ์—์„œ ์ด๋ฏธ์ง€์˜ ๊ธฐ๋ณธ ๊ตฌ์„ฑ ์š”์†Œ๋ฅผ ์ถ”์ถœํ•˜๋Š” ํ•ต์‹ฌ ๊ณผ์ œ์ž…๋‹ˆ๋‹ค. ์ด๋Š” 3D ์žฅ๋ฉด ์ดํ•ด, ์žฌ์งˆ ํŽธ์ง‘, ์žฌ์กฐ๋ช… ๋“ฑ ๋‹ค์–‘ํ•œ ์‘์šฉ ๋ถ„์•ผ์˜ ๊ธฐ๋ฐ˜์ด ๋ฉ๋‹ˆ๋‹ค. ๋ณธ์งˆ์  ๋ถ„ํ•ด๋Š” ์ž…๋ ฅ ์ด๋ฏธ์ง€์—์„œ ์•Œ๋ฒ ๋„, ๋ฒ•์„ , ๊ธˆ์†์„ฑ, ๊ฑฐ์น ๊ธฐ์™€ ๊ฐ™์€ ๊ณ ์œ  ์†์„ฑ์„ ๋ถ„๋ฆฌํ•˜๋Š” ๊ฒƒ์„ ๋ชฉํ‘œ๋กœ ํ•ฉ๋‹ˆ๋‹ค. ์ด๋Ÿฌํ•œ ์†์„ฑ์€ ๊ฐ์ฒด์˜ ๋ชจ์–‘, ์žฌ์งˆ, ์กฐ๋ช…๊ณผ ๋ฌด๊ด€ํ•˜๋ฉฐ ์žฅ๋ฉด์˜ ์ง„์ •ํ•œ ๋ณธ์งˆ์„ ๋‚˜ํƒ€๋ƒ…๋‹ˆ๋‹ค. ์ „ํ†ต์ ์ธ ์ตœ์ ํ™” ๊ธฐ๋ฐ˜ ๋ฐฉ๋ฒ•์€ ๊ณ„์‚ฐ์ ์œผ๋กœ ๋น„์‹ธ๊ณ  ์กฐ๋ช…๊ณผ ์žฌ์งˆ์˜ ๋ชจํ˜ธ์„ฑ์„ ํ•ด๊ฒฐํ•˜๋Š” ๋ฐ ์–ด๋ ค์›€์„ ๊ฒช์Šต๋‹ˆ๋‹ค. ์ตœ๊ทผ ๋”ฅ๋Ÿฌ๋‹ ๊ธฐ๋ฐ˜์˜ ๋ฐฉ๋ฒ•์€ ๋ฐ์ดํ„ฐ ๊ธฐ๋ฐ˜ ์‚ฌ์ „ ์ •๋ณด ํ™œ์šฉ์„ ํ†ตํ•ด ๊ณ ํ’ˆ์งˆ ๋ถ„ํ•ด๋ฅผ ๋‹ฌ์„ฑํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ๋‹จ์ผ ์ด๋ฏธ์ง€ ๊ธฐ๋ฐ˜ ๋ฐฉ๋ฒ•์€ ์—ฌ๋Ÿฌ ๋ทฐ์—์„œ ์ผ๊ด€์„ฑ ์—†๋Š” ๊ฒฐ๊ณผ๋ฅผ ์ƒ์„ฑํ•˜๋Š” ๊ฒฝ์šฐ๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค. ๋‹ค์ค‘ ๋ทฐ ์ผ๊ด€์„ฑ์„ ์œ ์ง€ํ•˜๋ฉด์„œ ๋ณธ์งˆ์  ๋ถ„ํ•ด๋ฅผ ์ˆ˜ํ–‰ํ•˜๋Š” ๊ฒƒ์€ ์–ด๋ ค์šด ๊ณผ์ œ๋กœ ๋‚จ์•„ ์žˆ์œผ๋ฉฐ, ๋ทฐ ๊ฐ„์˜ ์ •๋ณด ์œตํ•ฉ ๋ฐ ๋ชจํ˜ธ์„ฑ ํ•ด๊ฒฐ์„ ์œ„ํ•œ ํšจ๊ณผ์ ์ธ ์ „๋žต์ด ํ•„์š”ํ•ฉ๋‹ˆ๋‹ค.

Diffusion Model
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ํ™•์‚ฐ ๋ชจ๋ธ์€ ๋…ธ์ด์ฆˆ ์ œ๊ฑฐ๋ฅผ ํ†ตํ•œ ์—ญ ํ™•์‚ฐ ํ”„๋กœ์„ธ์Šค๋กœ ๊ณ ํ’ˆ์งˆ ์ด๋ฏธ์ง€ ์ƒ์„ฑ์— ๋„๋ฆฌ ์‚ฌ์šฉ๋ฉ๋‹ˆ๋‹ค. Stable Diffusion๊ณผ ๊ฐ™์€ ์ตœ์‹  ๋ชจ๋ธ์€ ํ…์ŠคํŠธ-์ด๋ฏธ์ง€ ์ƒ์„ฑ์—์„œ ์ฃผ๋ชฉํ•  ๋งŒํ•œ ๊ฒฐ๊ณผ๋ฅผ ๋‹ฌ์„ฑํ–ˆ์œผ๋ฉฐ, ๋‹ค์–‘ํ•œ ์‘์šฉ ๋ถ„์•ผ์— ๊ฑธ์ณ ์œ ๋งํ•œ ๊ฒฐ๊ณผ๋ฅผ ๋ณด์—ฌ์ฃผ์—ˆ์Šต๋‹ˆ๋‹ค. ๋ณธ ๋…ผ๋ฌธ์—์„œ๋Š” ๋‚ด์žฌ์  ๋ถ„ํ•ด๋ฅผ ์œ„ํ•ด ๊ต์ฐจ ๋„๋ฉ”์ธ ์–ดํ…์…˜ ๋ชจ๋“ˆ์„ ํ™œ์šฉํ•˜์—ฌ ๋‹ค์–‘ํ•œ ์ž…๋ ฅ ๋ทฐ์™€ ์กฐ๋ช… ์กฐ๊ฑด์„ ์ฒ˜๋ฆฌํ•˜๋Š” ํ™•์‚ฐ ๊ธฐ๋ฐ˜ ๋ชจ๋ธ์„ ์ œ์•ˆํ•ฉ๋‹ˆ๋‹ค. ์ด ์ ‘๊ทผ ๋ฐฉ์‹์„ ํ†ตํ•ด ์‚ฌ์‹ค์ ์ธ 3D ์ฝ˜ํ…์ธ  ์ œ์ž‘์„ ์œ„ํ•œ ๋ฉ€ํ‹ฐ๋ทฐ ์ผ๊ด€์„ฑ ๋ฐ ๊ณ ์ฃผํŒŒ ๋””ํ…Œ์ผ์„ ๊ฐ–์ถ˜ ์ •ํ™•ํ•œ ๋‚ด์žฌ์  ๊ตฌ์„ฑ ์š”์†Œ ์ถ”์ •์„ ๊ฐ€๋Šฅํ•˜๊ฒŒ ํ•ฉ๋‹ˆ๋‹ค.

Multi-view Data
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๋ฉ€ํ‹ฐ ๋ทฐ ๋ฐ์ดํ„ฐ๋Š” ๋ฌผ์ฒด๋‚˜ ์žฅ๋ฉด์— ๋Œ€ํ•œ ํ’๋ถ€ํ•˜๊ณ  ๋‹ค์–‘ํ•œ ์ •๋ณด๋ฅผ ์ œ๊ณตํ•˜์—ฌ ๋‹ค์–‘ํ•œ ์ปดํ“จํ„ฐ ๋น„์ „ ๋ฐ ๊ทธ๋ž˜ํ”ฝ ์ž‘์—…์—์„œ ์ค‘์š”ํ•œ ์—ญํ• ์„ ํ•ฉ๋‹ˆ๋‹ค. ์—ฌ๋Ÿฌ ๊ฐ๋„์—์„œ ์บก์ฒ˜๋œ ์ด๋ฏธ์ง€๋Š” ๊ฐ์ฒด์˜ 3์ฐจ์› ํ˜•์ƒ, ์žฌ์งˆ ์†์„ฑ, ์ฃผ๋ณ€ ์กฐ๋ช…์„ ๋ณด๋‹ค ์™„๋ฒฝํ•˜๊ฒŒ ํ‘œํ˜„ํ•ฉ๋‹ˆ๋‹ค. ์ด๋Ÿฌํ•œ ๋ฐ์ดํ„ฐ๋Š” ๊นŠ์ด ์ถ”์ •, 3D ์žฌ๊ตฌ์„ฑ, ๋ฌผ์ฒด ์ธ์‹ ๋ฐ ์žฅ๋ฉด ์ดํ•ด์™€ ๊ฐ™์€ ์ž‘์—…์—์„œ ์œ ์šฉํ•˜๊ฒŒ ์‚ฌ์šฉ๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๋ฉ€ํ‹ฐ ๋ทฐ ๋ฐ์ดํ„ฐ๋Š” ๋ฐ์ดํ„ฐ์˜ ์–‘๊ณผ ๋‹ค์–‘์„ฑ ๋•๋ถ„์— ํ›ˆ๋ จ๋œ ๋ชจ๋ธ์˜ ์ผ๋ฐ˜ํ™” ์„ฑ๋Šฅ์„ ํ–ฅ์ƒ์‹œ์ผœ ๋ณด๋‹ค ์ •ํ™•ํ•˜๊ณ  ๊ฐ•๋ ฅํ•œ ์˜ˆ์ธก์„ ๊ฐ€๋Šฅํ•˜๊ฒŒ ํ•ฉ๋‹ˆ๋‹ค. ๋˜ํ•œ, ๋ฉ€ํ‹ฐ ๋ทฐ ์ผ๊ด€์„ฑ์„ ํ†ตํ•ด ์—ฌ๋Ÿฌ ์‹œ์ ์—์„œ ์˜ˆ์ธก์˜ ์ •ํ™•์„ฑ๊ณผ ์•ˆ์ •์„ฑ์„ ๋ณด์žฅํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๋ฉ€ํ‹ฐ ๋ทฐ ๋ฐ์ดํ„ฐ์˜ ์ฃผ์š” ๊ณผ์ œ ์ค‘ ํ•˜๋‚˜๋Š” ์—ฌ๋Ÿฌ ์‹œ์ ์—์„œ ์บก์ฒ˜๋œ ์ •๋ณด๋ฅผ ํšจ๊ณผ์ ์œผ๋กœ ํ†ตํ•ฉํ•˜๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค. ์ด ๋ฌธ์ œ๋ฅผ ํ•ด๊ฒฐํ•˜๊ธฐ ์œ„ํ•ด ๊ต์ฐจ ๋ทฐ ์–ดํ…์…˜ ๋ฉ”์ปค๋‹ˆ์ฆ˜๊ณผ ๊ฐ™์€ ๋‹ค์–‘ํ•œ ๊ธฐ์ˆ ์ด ๊ฐœ๋ฐœ๋˜์—ˆ์Šต๋‹ˆ๋‹ค. ์ด๋Ÿฌํ•œ ๋ฉ”์ปค๋‹ˆ์ฆ˜์€ ๋‹ค๋ฅธ ๋ทฐ ๊ฐ„์˜ ๊ด€๊ณ„๋ฅผ ๋ชจ๋ธ๋งํ•˜๊ณ  ์ „์—ญ ์ •๋ณด ๊ตํ™˜์„ ๊ฐ€๋Šฅํ•˜๊ฒŒ ํ•˜์—ฌ ์ผ๊ด€๋˜๊ณ  ์ •ํ™•ํ•œ ๋ฉ€ํ‹ฐ ๋ทฐ ์žฌ๊ตฌ์„ฑ์„ ๋ณด์žฅํ•ฉ๋‹ˆ๋‹ค. ์š”์•ฝํ•˜๋ฉด, ๋ฉ€ํ‹ฐ ๋ทฐ ๋ฐ์ดํ„ฐ๋Š” ์ปดํ“จํ„ฐ ๋น„์ „ ๋ฐ ๊ทธ๋ž˜ํ”ฝ ๋ถ„์•ผ์˜ ๋‹ค์–‘ํ•œ ์ž‘์—…์—์„œ ์ค‘์š”ํ•œ ์—ญํ• ์„ ํ•˜๋ฉฐ, ๋ฉ€ํ‹ฐ ๋ทฐ ๋ฐ์ดํ„ฐ๋ฅผ ํšจ๊ณผ์ ์œผ๋กœ ํ™œ์šฉํ•˜๋Š” ๊ธฐ์ˆ ์€ ๋”์šฑ ๊ฐ•๋ ฅํ•˜๊ณ  ์‚ฌ์‹ค์ ์ธ 3D ๋ชจ๋ธ ๋ฐ ์žฅ๋ฉด ํ‘œํ˜„์„ ํ–ฅ์ƒ์‹œํ‚ค๋Š” ๋ฐ ์ค‘์š”ํ•ฉ๋‹ˆ๋‹ค.

Relighting App
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์žฌ์กฐ๋ช… ์•ฑ์€ ์ด๋ฏธ์ง€์˜ ๊ณ ์œ ํ•œ ์†์„ฑ(์•Œ๋ฒ ๋„, ํ‘œ๋ฉด ๋ฒ•์„ , ๊ธˆ์†์„ฑ, ๊ฑฐ์น ๊ธฐ)์„ ๋ถ„ํ•ดํ•˜์—ฌ ๋‹ค์–‘ํ•œ ์กฐ๋ช… ์กฐ๊ฑด์—์„œ ์‚ฌ์‹ค์ ์ธ ์ด๋ฏธ์ง€๋ฅผ ์ƒ์„ฑํ•˜๋Š” ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜์ž…๋‹ˆ๋‹ค. ์ด๋Ÿฌํ•œ ์•ฑ์€ ์—ญ๋ Œ๋”๋ง ๊ธฐ์ˆ ์„ ์‚ฌ์šฉํ•˜์—ฌ ์ด๋ฏธ์ง€์—์„œ ๊ธฐํ•˜ํ•™์  ๋ฐ ์žฌ์งˆ ์ •๋ณด๋ฅผ ์ถ”์ถœํ•˜๊ณ , ์ด๋ฅผ ํ†ตํ•ด ์‚ฌ์šฉ์ž๋Š” ์กฐ๋ช…์„ ์ˆ˜์ •ํ•˜๊ฑฐ๋‚˜ ํŽธ์ง‘ํ•˜์—ฌ ์›๋ณธ ์ด๋ฏธ์ง€์˜ ๋ชจ์–‘์„ ๋ณ€๊ฒฝํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์˜ˆ๋ฅผ ๋“ค์–ด, ์–ด๋‘์šด ์ด๋ฏธ์ง€๋ฅผ ๋ฐ๊ฒŒ ํ•˜๊ฑฐ๋‚˜, ์กฐ๋ช…์˜ ์ƒ‰์ƒ์„ ๋ณ€๊ฒฝํ•˜๊ฑฐ๋‚˜, ๊ทธ๋ฆผ์ž๋ฅผ ์ถ”๊ฐ€ํ•˜๊ฑฐ๋‚˜ ์ œ๊ฑฐํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ด๋Ÿฌํ•œ ๊ธฐ๋Šฅ์€ ์‚ฌ์ง„ ํŽธ์ง‘, ๊ฒŒ์ž„ ๊ฐœ๋ฐœ, ์˜ํ™” ์ œ์ž‘, ๊ฑด์ถ• ๋””์ž์ธ๊ณผ ๊ฐ™์€ ๋‹ค์–‘ํ•œ ๋ถ„์•ผ์—์„œ ํ™œ์šฉ๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ํŠนํžˆ, ๊ฐ€์ƒ ํ™˜๊ฒฝ์—์„œ ์‚ฌ์‹ค์ ์ธ ์กฐ๋ช… ํšจ๊ณผ๋ฅผ ์‹œ๋ฎฌ๋ ˆ์ด์…˜ํ•˜๊ฑฐ๋‚˜, ์ œํ’ˆ์˜ ์™ธ๊ด€์„ ๋‹ค์–‘ํ•œ ์กฐ๋ช… ์กฐ๊ฑด์—์„œ ๋ฏธ๋ฆฌ ํ™•์ธํ•˜๋Š” ๋ฐ ์œ ์šฉํ•ฉ๋‹ˆ๋‹ค. ์žฌ์กฐ๋ช… ์•ฑ์€ ์‚ฌ์šฉ์ž์—๊ฒŒ ์ฐฝ์˜์ ์ธ ํ‘œํ˜„์„ ์œ„ํ•œ ๊ฐ•๋ ฅํ•œ ๋„๊ตฌ๋ฅผ ์ œ๊ณตํ•˜๋ฉฐ, ๋ชฐ์ž…ํ˜• ๊ฒฝํ—˜์„ ํ–ฅ์ƒ์‹œํ‚ค๋Š” ๋ฐ ๊ธฐ์—ฌํ•ฉ๋‹ˆ๋‹ค. ์ด๋Ÿฌํ•œ ์•ฑ์˜ ๋ฐœ์ „์€ ์ปดํ“จํ„ฐ ๋น„์ „ ๋ฐ ๊ทธ๋ž˜ํ”ฝ ๊ธฐ์ˆ ์˜ ๋ฐœ์ „๊ณผ ๋ฐ€์ ‘ํ•˜๊ฒŒ ์—ฐ๊ด€๋˜์–ด ์žˆ์œผ๋ฉฐ, ์•ž์œผ๋กœ ๋”์šฑ ์‚ฌ์‹ค์ ์ด๊ณ  ๋‹ค์–‘ํ•œ ๊ธฐ๋Šฅ์„ ์ œ๊ณตํ•  ๊ฒƒ์œผ๋กœ ๊ธฐ๋Œ€๋ฉ๋‹ˆ๋‹ค.

Dataset & Limits
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ARB-Objaverse ๋ฐ์ดํ„ฐ์…‹์€ ๋‹ค์–‘ํ•œ ์กฐ๋ช… ์กฐ๊ฑด์—์„œ ๋ Œ๋”๋ง๋œ ๋Œ€๊ทœ๋ชจ ๊ฐ์ฒด๋“ค์„ ์ œ๊ณตํ•˜์—ฌ ๊ธฐ์กด ๋ฐ์ดํ„ฐ์…‹์˜ ํ•œ๊ณ„๋ฅผ ๊ทน๋ณตํ•ฉ๋‹ˆ๋‹ค. 68k๊ฐœ์˜ 3D ๋ชจ๋ธ์„ Objaverse์—์„œ ์„ ํƒํ•˜๊ณ , ๊ฐ ๊ฐ์ฒด์— ๋Œ€ํ•ด ๋‹ค์–‘ํ•œ ์กฐ๋ช…์œผ๋กœ 7๊ฐœ์˜ ์ด๋ฏธ์ง€๋ฅผ 12๊ฐœ ์‹œ์ ์—์„œ ๋ Œ๋”๋งํ•˜์—ฌ 5.7M๊ฐœ์˜ RGB ์ด๋ฏธ์ง€์™€ ์กฐ๋ช… ์กฐ๊ฑด์— ๋”ฐ๋ฅธ ๋ณธ์งˆ์  ์š”์†Œ๋ฅผ ์ƒ์„ฑํ–ˆ์Šต๋‹ˆ๋‹ค. ์ด๋Š” ๋‹ค์–‘ํ•œ ์กฐ๋ช…, ์‹œ์ , ๊ฐ์ฒด์˜ ์กฐํ•ฉ์œผ๋กœ ํ›ˆ๋ จ ๋ฐ์ดํ„ฐ์˜ ๋‹ค์–‘์„ฑ์„ ํ™•๋ณดํ•˜๊ณ , ์กฐ๋ช…๊ณผ ์žฌ์งˆ์˜ ๋ชจํ˜ธ์„ฑ ๋ฌธ์ œ๋ฅผ ์™„ํ™”ํ•˜๋Š” ๋ฐ ๊ธฐ์—ฌํ•ฉ๋‹ˆ๋‹ค. ํ•˜์ง€๋งŒ ์‹ค์ œ ๋ฐ์ดํ„ฐ ๋ถ€์กฑ์€ ์—ฌ์ „ํžˆ ํ•œ๊ณ„๋กœ ๋‚จ์•„์žˆ์œผ๋ฉฐ, ํŠนํžˆ ๋ณต์žกํ•œ ์žฌ์งˆ ๋ณ€ํ™”๋ฅผ ๊ฐ€์ง„ ๊ฐ์ฒด์˜ ๊ฒฝ์šฐ ๊ณผ๋„ํ•˜๊ฒŒ ๋‹จ์ˆœํ™”๋œ ๊ฒฐ๊ณผ๋ฅผ ์ดˆ๋ž˜ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ์‹ค์ œ ๋ฐ์ดํ„ฐ๋ฅผ ํ†ตํ•ฉํ•˜๋Š” ๋น„์ง€๋„ ํ•™์Šต ๊ธฐ๋ฒ• ๋“ฑ ์ถ”๊ฐ€ ์—ฐ๊ตฌ๊ฐ€ ํ•„์š”ํ•ฉ๋‹ˆ๋‹ค. ๋˜ํ•œ, ํ˜„์žฌ ๊ต์ฐจ ์‹œ์  ์–ดํ…์…˜ ๋ฉ”์ปค๋‹ˆ์ฆ˜์˜ O(Nยฒ) ๋ณต์žก๋„๋Š” ๊ณ ํ•ด์ƒ๋„ ์ด๋ฏธ์ง€ ๋˜๋Š” ๋งŽ์€ ์‹œ์ ์—์„œ์˜ ์ฒ˜๋ฆฌ๋ฅผ ์–ด๋ ต๊ฒŒ ํ•ฉ๋‹ˆ๋‹ค. ํ–ฅํ›„ ์—ฐ๊ตฌ์—์„œ๋Š” ํšจ์œจ์ ์ธ ๊ต์ฐจ ์‹œ์  ์–ดํ…์…˜ ๋ฉ”์ปค๋‹ˆ์ฆ˜ ๊ฐœ๋ฐœ์ด ์ค‘์š”ํ•ฉ๋‹ˆ๋‹ค.

More visual insights
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More on figures

๐Ÿ”ผ IDArb๋Š” ๋‹ค์–‘ํ•œ ์กฐ๋ช… ์กฐ๊ฑด์—์„œ ์ดฌ์˜๋œ ์ž„์˜ ๊ฐœ์ˆ˜์˜ ์ด๋ฏธ์ง€๋ฅผ ์ž…๋ ฅ๋ฐ›์•„ intrinsic decomposition์„ ์ˆ˜ํ–‰ํ•˜๋Š” ํ™•์‚ฐ ๊ธฐ๋ฐ˜ ๋ชจ๋ธ์ž…๋‹ˆ๋‹ค. ๊ทธ๋ฆผ์€ IDArb์˜ ์ „์ฒด์ ์ธ ๊ตฌ์กฐ์™€ UNet ๋‚ด๋ถ€์˜ attention block์„ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. ์ž…๋ ฅ ์ด๋ฏธ์ง€๋“ค์€ N_v๊ฐœ์˜ ์‹œ์ ๊ณผ N_i๊ฐœ์˜ ์กฐ๋ช… ์กฐ๊ฑด์—์„œ ์ƒ˜ํ”Œ๋ง๋˜๋ฉฐ, ๊ฐ ์ด๋ฏธ์ง€์˜ latent vector๋Š” ๊ฐ€์šฐ์‹œ์•ˆ ๋…ธ์ด์ฆˆ์™€ ์—ฐ๊ฒฐ๋˜์–ด denoising์— ์‚ฌ์šฉ๋ฉ๋‹ˆ๋‹ค. Intrinsic component๋Š” Albedo, Normal, Metallic&Roughness์˜ ์„ธ ๊ฐ€์ง€ triplet์œผ๋กœ ๋‚˜๋‰˜๋ฉฐ, ๊ฐ๊ฐ ํŠน์ • ํ…์ŠคํŠธ ํ”„๋กฌํ”„ํŠธ๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ๋ชจ๋ธ์„ ์•ˆ๋‚ดํ•ฉ๋‹ˆ๋‹ค. UNet ๋‚ด๋ถ€์˜ attention block์€ cross-component attention๊ณผ cross-view attention ๋ชจ๋“ˆ์„ ํ†ตํ•ด component์™€ ์‹œ์  ๊ฐ„์˜ ์ •๋ณด ๊ตํ™˜์„ ์ด‰์ง„ํ•˜์—ฌ, ์ „์—ญ ์ •๋ณด ๊ตํ™˜์„ ๊ฐ€๋Šฅํ•˜๊ฒŒ ํ•ฉ๋‹ˆ๋‹ค.

read the captionFigure 2: Top: Overview of ย IDArb. Bottom: Illustration of the attention block within the UNet. Our training batch consists of N๐‘Nitalic_N input images, sampled from Nvsubscript๐‘๐‘ฃN_{v}italic_N start_POSTSUBSCRIPT italic_v end_POSTSUBSCRIPT viewpoints and Nisubscript๐‘๐‘–N_{i}italic_N start_POSTSUBSCRIPT italic_i end_POSTSUBSCRIPT illuminations. The latent vector for each image is concatenated with Gaussian noise for denoising. Intrinsic components are divided into three triplets (D๐ทDitalic_D=3): Albedo, Normal and Metallic&Roughness. Specific text prompts are used to guide the model toward different intrinsic components. For attention block inside UNet, we introduce cross-component and cross-view attention module into it, where attention is applied across components and views, facilitating global information exchange.

๐Ÿ”ผ ARB-Objaverse ๋ฐ์ดํ„ฐ์…‹์€ ๋‹ค์–‘ํ•œ ๋ฌผ์ฒด๋“ค์„ ์—ฌ๋Ÿฌ ์กฐ๋ช… ์กฐ๊ฑด์—์„œ ๋ Œ๋”๋งํ•˜์—ฌ ์กฐ๋ช… ๋ณ€ํ™”์— ๊ฐ•์ธํ•œ ํ•™์Šต ๋ฐ์ดํ„ฐ๋ฅผ ์ œ๊ณตํ•ฉ๋‹ˆ๋‹ค. ๊ฐ ๋ฌผ์ฒด๋Š” albedo, normal, metallic, roughness์™€ ๊ฐ™์€ intrinsic ์š”์†Œ๋“ค๊ณผ ํ•จ๊ป˜ ์ œ๊ณต๋ฉ๋‹ˆ๋‹ค. ๊ทธ๋ฆผ์—์„œ ABO, G-Objaverse, A12-Objaverse ๋ฐ์ดํ„ฐ์…‹๊ณผ ๋น„๊ตํ•˜์—ฌ ARB-Objaverse์˜ ๋‹ค์–‘ํ•œ ๋ฌผ์ฒด ๋ฐ ์กฐ๋ช… ์กฐ๊ฑด์„ ํ™•์ธํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

read the captionFigure 3: Overview of the Arb-Objaverse dataset. Our custom dataset features a diverse collection of objects rendered under various lighting conditions, accompanied by their intrinsic components.

๐Ÿ”ผ (a) ์•Œ๋ฒ ๋„ ์ถ”์ •. IDArb๋Š” ํ•™์Šต ๊ธฐ๋ฐ˜ ์ ‘๊ทผ ๋ฐฉ์‹๊ณผ ๋‹ฌ๋ฆฌ ํ•˜์ด๋ผ์ดํŠธ์™€ ๊ทธ๋ฆผ์ž๋ฅผ ํšจ๊ณผ์ ์œผ๋กœ ์ œ๊ฑฐํ•˜์—ฌ ๋” ์ •ํ™•ํ•œ ์•Œ๋ฒ ๋„ ๋งต์„ ์ƒ์„ฑํ•ฉ๋‹ˆ๋‹ค. ์ตœ์ ํ™” ๊ธฐ๋ฐ˜ ๋ฐฉ๋ฒ•๊ณผ ๋น„๊ตํ–ˆ์„ ๋•Œ, IDArb๋Š” ์กฐ๋ช… ํšจ๊ณผ๋ฅผ ์•Œ๋ฒ ๋„์— ์‚ฝ์ž…ํ•˜์ง€ ์•Š๊ณ  ๋” ๋‚˜์€ ๊ฒฐ๊ณผ๋ฅผ ๋ณด์ž…๋‹ˆ๋‹ค.

read the caption(a) Albedo estimation. Our method effectively removes highlights and shadows.

๐Ÿ”ผ IDArb๊ฐ€ ๋‹ค๋ฅธ ๋ฐฉ๋ฒ•๋“ค(RGBโ†’X, GeoWizard)๊ณผ ๋น„๊ตํ•˜์—ฌ, ํ‰๋ฉด์„ ์˜ฌ๋ฐ”๋ฅด๊ฒŒ ์˜ˆ์ธกํ•˜๋ฉด์„œ๋„ ๋ฌผ์ฒด์˜ ํ˜•ํƒœ๋ฅผ ์ž˜ ๋‚˜ํƒ€๋‚ด๋Š” ๋…ธ๋ฉ€ ๋งต์„ ์ƒ์„ฑํ•˜๋Š” ๊ฒƒ์„ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. RGBโ†’X๋Š” ๋ฌผ์ฒด์˜ ํ…์Šค์ฒ˜์— ์˜ํ•ด ๊ฐ„์„ญ์„ ๋ฐ›๋Š” ๋ชจ์Šต์„ ๋ณด์ด๋ฉฐ, GeoWizard๋Š” ํ๋ฆฟํ•œ ๊ฒฐ๊ณผ๋ฅผ ์ƒ์„ฑํ•ฉ๋‹ˆ๋‹ค.

read the caption(b) Normal estimation. Our method gives shape geometry while correctly predicting flat surface.

๐Ÿ”ผ IDArb๋Š” ํ…์Šค์ฒ˜ ํŒจํ„ด ๋ฐ ์กฐ๋ช…์˜ ๊ฐ„์„ญ ์—†์ด ์‹ค์ œ์™€ ๊ฐ™์€ ๊ฒฐ๊ณผ๋ฅผ ์ƒ์„ฑํ•˜์—ฌ ๊ธˆ์†์„ฑ ์ถ”์ •์—์„œ IID ๋ฐ RGBโ†”X๋ณด๋‹ค ์„ฑ๋Šฅ์ด ๋›ฐ์–ด๋‚ฉ๋‹ˆ๋‹ค.

read the caption(c) Metallic estimation. Our method outperforms IID and RGBโ†”โ†”\leftrightarrowโ†”X with plausible results free of interference from texture patterns and lighting.

๐Ÿ”ผ IDArb๊ฐ€ ํ…์Šค์ฒ˜ ํŒจํ„ด ๋ฐ ์กฐ๋ช…์˜ ๊ฐ„์„ญ ์—†์ด ๊ทธ๋Ÿด๋“ฏํ•œ ๊ฒฐ๊ณผ๋ฅผ ์ƒ์„ฑํ•˜์—ฌ IID์™€ RGBโ†”X๋ณด๋‹ค ์šฐ์ˆ˜ํ•œ ์„ฑ๋Šฅ์œผ๋กœ ๊ฑฐ์น ๊ธฐ๋ฅผ ์˜ˆ์ธกํ•˜๋Š” ๊ฒƒ์„ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค.

read the caption(d) Roughness estimation. Our method outperforms IID and RGBโ†”โ†”\leftrightarrowโ†”X with plausible results free of interference from texture patterns and lighting.

๐Ÿ”ผ IDArb ๋ชจ๋ธ์€ ํ•ฉ์„ฑ ๋ฐ์ดํ„ฐ์—์„œ ๋‹ค๋ฅธ ๋ฐฉ๋ฒ•๋“ค๊ณผ ๋น„๊ตํ•˜์—ฌ ์šฐ์ˆ˜ํ•œ ๋‚ด์žฌ์  ์ถ”์ • ๊ฒฐ๊ณผ๋ฅผ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. ๊ทธ๋ฆผ์€ albedo, normal, metallic, roughness ์ถ”์ • ๊ฒฐ๊ณผ๋ฅผ IID, RGBโ†’X, IntrinsicAnything, GeoWizard ์™€ ๊ฐ™์€ ๊ธฐ์กด ๋ฐฉ๋ฒ•๋“ค๊ณผ ๋น„๊ตํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. IDArb๋Š” albedo์—์„œ ํ•˜์ด๋ผ์ดํŠธ์™€ ๊ทธ๋ฆผ์ž๋ฅผ ํšจ๊ณผ์ ์œผ๋กœ ์ œ๊ฑฐํ•˜๊ณ , normal์—์„œ ์ •ํ™•ํ•œ ๊ธฐํ•˜ํ•™์  ํ˜•ํƒœ๋ฅผ ์ œ๊ณตํ•˜๋ฉฐ, metallic๊ณผ roughness์—์„œ ํ…์Šค์ฒ˜ ํŒจํ„ด ๋ฐ ์กฐ๋ช…์˜ ๊ฐ„์„ญ์„ ์ œ๊ฑฐํ•˜์—ฌ ์‚ฌ์‹ค์ ์ธ ๊ฒฐ๊ณผ๋ฅผ ์ œ๊ณตํ•ฉ๋‹ˆ๋‹ค.

read the captionFigure 4: Qualitative comparison on synthetic data. ย IDArb demonstrates superior intrinsic estimation compared to all other methods.

๐Ÿ”ผ ์ด ๊ทธ๋ฆผ์€ ์‹ค์ œ ๋ฐ์ดํ„ฐ์— ๋Œ€ํ•œ IDArb์˜ ์ •์„ฑ์  ๋น„๊ต ๊ฒฐ๊ณผ๋ฅผ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. IDArb์€ ์‹ค์ œ ๋ฐ์ดํ„ฐ์— ๋Œ€ํ•ด์„œ๋„ ์ž˜ ์ผ๋ฐ˜ํ™”๋˜์–ด ์ •ํ™•ํ•˜๊ณ  ์„ค๋“๋ ฅ ์žˆ๋Š” ๋ถ„ํ•ด๋Šฅ๊ณผ ๊ณ ์ฃผํŒŒ ๋””ํ…Œ์ผ์„ ์ œ๊ณตํ•ฉ๋‹ˆ๋‹ค. ์™ผ์ชฝ์—์„œ ์˜ค๋ฅธ์ชฝ์œผ๋กœ ์ž…๋ ฅ ์ด๋ฏธ์ง€, IntrinsicAnything๋กœ ์˜ˆ์ธกํ•œ ๊ฒฐ๊ณผ, IDArb์œผ๋กœ ์˜ˆ์ธกํ•œ ์•Œ๋ฒ ๋„, ๋…ธ๋ง, ๋ฉ”ํƒˆ๋ฆญ, ๋Ÿฌํ”„๋‹ˆ์Šค๋ฅผ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. IDArb์€ IntrinsicAnything๋ณด๋‹ค ๋” ๋‚˜์€ ๋””ํ…Œ์ผ๊ณผ ์‚ฌ์‹ค์ ์ธ ๊ฒฐ๊ณผ๋ฅผ ์ƒ์„ฑํ•ฉ๋‹ˆ๋‹ค.

read the captionFigure 5: Qualitative comparison on real-world data. ย IDArb generalizes well to real data, with accurate, convincing decompositions and high-frequency details.

๐Ÿ”ผ (a) ์—ฌ๋Ÿฌ ์ž…๋ ฅ ์ด๋ฏธ์ง€๋กœ ๊ตฌ์„ฑ๋œ ์ƒ˜ํ”Œ์˜ ๋‹ค์ค‘ ๋ทฐ ์ผ๊ด€์„ฑ ์‹œ๊ฐ์  ๋น„๊ต์ž…๋‹ˆ๋‹ค. IDArb๋Š” ํ•™์Šต ๊ธฐ๋ฐ˜ ๋ฐฉ๋ฒ•(IntrinsicAnything)๊ณผ ๋น„๊ตํ•˜์—ฌ ๋‹ค์ค‘ ๋ทฐ ์ผ๊ด€์„ฑ์„ ๋‹ฌ์„ฑํ•˜๊ณ  ์ตœ์ ํ™” ๊ธฐ๋ฐ˜ ๋ฐฉ๋ฒ•์„ ํ†ตํ•ด ํ•™์Šต๋œ ์‚ฌ์ „์„ ํ†ตํ•ด ์กฐ๋ช… ํšจ๊ณผ์—์„œ ๋‚ด์žฌ์  ๊ตฌ์„ฑ ์š”์†Œ๋ฅผ ๋” ์ž˜ ๋ถ„๋ฆฌํ•ฉ๋‹ˆ๋‹ค.

read the caption(a)

๐Ÿ”ผ (b) ์ตœ์ ํ™” ๊ธฐ๋ฐ˜ ๋ฐฉ๋ฒ•(NVDiffRecMC)๊ณผ ํ•™์Šต ๊ธฐ๋ฐ˜ ๋ฐฉ๋ฒ•(IntrinsicAnything)์˜ ๋‹จ์ ์„ ๋ณด์—ฌ์ฃผ๋Š” ๊ทธ๋ฆผ์ž…๋‹ˆ๋‹ค. NVDiffRecMC๋Š” ์กฐ๋ช… ํšจ๊ณผ๊ฐ€ ์žฌ์งˆ์— ์ž˜๋ชป ๋ฐ˜์˜๋˜์–ด(์˜ˆ: ๊ธˆ์†์„ฑ ์˜ค๋ธŒ์ ํŠธ์˜ ์–ด๋‘์šด ์ƒ‰์ƒ), IntrinsicAnything๋Š” ๋ฉ€ํ‹ฐ ๋ทฐ ์ž…๋ ฅ์— ๋Œ€ํ•ด ์ผ๊ด€์„ฑ ์—†๋Š” ๊ฒฐ๊ณผ๋ฅผ ์ƒ์„ฑํ•ฉ๋‹ˆ๋‹ค. ์ด์— ๋ฐ˜ํ•ด IDArb๋Š” ํ•™์Šต ๊ธฐ๋ฐ˜ ๋ฐฉ์‹์œผ๋กœ ๋ฉ€ํ‹ฐ ๋ทฐ ์ผ๊ด€์„ฑ์„ ์œ ์ง€ํ•˜๋ฉด์„œ ์กฐ๋ช… ํšจ๊ณผ์™€ ์žฌ์งˆ์„ ๋” ์ž˜ ๋ถ„๋ฆฌํ•ฉ๋‹ˆ๋‹ค.

read the caption(b)

๐Ÿ”ผ ์ด ๊ทธ๋ฆผ์€ ๊ต์ฐจ ๊ตฌ์„ฑ ์š”์†Œ ์ฃผ์˜ ๋ฐ ํ›ˆ๋ จ ์ „๋žต์— ๋Œ€ํ•œ ์ ˆ์ œ ์—ฐ๊ตฌ ๊ฒฐ๊ณผ๋ฅผ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. (a)๋Š” ๊ต์ฐจ ๊ตฌ์„ฑ ์š”์†Œ ์ฃผ์˜๊ฐ€ ์—†์„ ๋•Œ ๊ธˆ์† ๋ฐ ๊ฑฐ์น ๊ธฐ์™€ ๊ฐ™์€ ๋ณธ์งˆ์ ์ธ ๊ตฌ์„ฑ ์š”์†Œ์˜ ์˜ˆ์ธก์ด ์ €ํ•˜๋จ์„ ๋ณด์—ฌ์ฃผ๋ฉฐ, ์ด๋Š” ์ด๋Ÿฌํ•œ ๊ตฌ์„ฑ ์š”์†Œ ๊ฐ„์˜ ์ƒํ˜ธ ์ž‘์šฉ์„ ๋ชจ๋ธ๋งํ•˜๋Š” ๊ฒƒ์˜ ์ค‘์š”์„ฑ์„ ๊ฐ•์กฐํ•ฉ๋‹ˆ๋‹ค. (b)๋Š” ๋‹ค์ค‘ ๋ทฐ ์ž…๋ ฅ๊ณผ ๋‹จ์ผ ์ด๋ฏธ์ง€ ์ž…๋ ฅ์„ ๋ชจ๋‘ ์‚ฌ์šฉํ•œ ํ›ˆ๋ จ ์ „๋žต์˜ ํšจ๊ณผ๋ฅผ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. ๋‹ค์ค‘ ๋ทฐ ์ž…๋ ฅ๋งŒ ์‚ฌ์šฉํ•˜์—ฌ ํ›ˆ๋ จํ•˜๋ฉด ๋‹จ์ผ ์ด๋ฏธ์ง€ ์ž…๋ ฅ์— ๋Œ€ํ•œ ์„ฑ๋Šฅ์ด ์ €ํ•˜๋˜๋Š” ๋ฐ˜๋ฉด, ์ œ์•ˆ๋œ ํ›ˆ๋ จ ์ „๋žต์€ ๋‹ค์–‘ํ•œ ์ž…๋ ฅ ์œ ํ˜•์— ๋Œ€ํ•œ ๊ฐ•๋ ฅํ•œ ์ผ๋ฐ˜ํ™” ๊ธฐ๋Šฅ์„ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. ๋˜ํ•œ, ๋†’์€ ๋…ธ์ด์ฆˆ ๋ ˆ๋ฒจ๋กœ ๋…ธ์ด์ฆˆ ์Šค์ผ€์ค„๋Ÿฌ๋ฅผ ์ด๋™ํ•˜๋ฉด ๊ธˆ์† ๋ฐ ๊ฑฐ์น ๊ธฐ ๊ตฌ์„ฑ ์š”์†Œ์˜ ์˜ˆ์ธก์ด ํ–ฅ์ƒ๋ฉ๋‹ˆ๋‹ค.

read the captionFigure 6: Ablative studies on (a) cross-component attention and (b) training strategy.

๐Ÿ”ผ ์ด ๊ทธ๋ฆผ์€ ๋‹ค์–‘ํ•œ ์ˆ˜์˜ ๋ทฐํฌ์ธํŠธ์™€ ์กฐ๋ช… ์กฐ๊ฑด์—์„œ IDArb ๋ชจ๋ธ์˜ ์„ฑ๋Šฅ์„ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. ๋ทฐํฌ์ธํŠธ ์ˆ˜(#V)์™€ ์กฐ๋ช… ์กฐ๊ฑด ์ˆ˜(#L)๋ฅผ ๋‹ค์–‘ํ•˜๊ฒŒ ๋ณ€๊ฒฝํ•˜๋ฉฐ ์‹คํ—˜ํ•œ ๊ฒฐ๊ณผ, ๋ทฐํฌ์ธํŠธ์™€ ์กฐ๋ช… ์กฐ๊ฑด์˜ ์ˆ˜๊ฐ€ ์ฆ๊ฐ€ํ• ์ˆ˜๋ก ์ „๋ฐ˜์ ์ธ ๋ถ„ํ•ด ์„ฑ๋Šฅ์ด ํ–ฅ์ƒ๋จ์„ ์•Œ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ํŠนํžˆ ๊ธˆ์†์„ฑ ๋ฐ ๊ฑฐ์น ๊ธฐ ์˜ˆ์ธก์˜ ๊ฒฝ์šฐ, ๋‹ค์ค‘ ์กฐ๋ช… ์บก์ฒ˜๊ฐ€ ์กฐ๋ช… ํšจ๊ณผ๋กœ ์ธํ•œ ๋ชจํ˜ธ์„ฑ์„ ํ•ด๊ฒฐํ•˜๋Š” ๋ฐ ๋งค์šฐ ํšจ๊ณผ์ ์ž…๋‹ˆ๋‹ค. 8๊ฐœ ์ด์ƒ์˜ ๋ทฐํฌ์ธํŠธ๋ฅผ ์ถ”๊ฐ€ํ•˜๋ฉด ์„ฑ๋Šฅ ํ–ฅ์ƒ์ด ๊ฐ์†Œํ•˜๋Š” ๊ฒฝํ–ฅ์„ ๋ณด์ž…๋‹ˆ๋‹ค. x์ถ•์€ ๋ทฐํฌ์ธํŠธ ์ˆ˜๋ฅผ ๋‚˜ํƒ€๋‚ด๊ณ , y์ถ•์€ ์•Œ๋ฒ ๋„, ๋…ธ๋ฉ€, ๋ฉ”ํƒˆ๋ฆญ, ๋Ÿฌํ”„๋‹ˆ์Šค ๊ฐ๊ฐ์˜ ์„ฑ๋Šฅ ์ง€ํ‘œ ๊ฐ’์˜ ๋ณ€ํ™”๋ฅผ ๋‚˜ํƒ€๋ƒ…๋‹ˆ๋‹ค. ์ƒ‰์ƒ ๋ณ€ํ™”๋ฅผ ํ†ตํ•ด ๋ทฐํฌ์ธํŠธ ์ˆ˜์™€ ์กฐ๋ช… ์กฐ๊ฑด ์ˆ˜์— ๋”ฐ๋ฅธ ์„ฑ๋Šฅ ๋ณ€ํ™”๋ฅผ ์‹œ๊ฐ์ ์œผ๋กœ ํ™•์ธํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

read the captionFigure 7: Effects of number of viewpoints and lighting conditions. We find increasing the number of viewpoints and the lighting conditions generally improves decomposition performance.

๐Ÿ”ผ ์ด ๊ทธ๋ฆผ์€ ์‹ค์ œ ํ™˜๊ฒฝ์—์„œ ์ดฌ์˜๋œ ์ด๋ฏธ์ง€(a)๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ์ƒˆ๋กœ์šด ์กฐ๋ช… ์กฐ๊ฑด์—์„œ์˜ ๋ฆฌ๋ผ์ดํŒ… ๊ฒฐ๊ณผ(b)์™€ ์žฌ์งˆ ์†์„ฑ ๋ณ€๊ฒฝ ๊ฒฐ๊ณผ(c)๋ฅผ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. IDArb ๋ชจ๋ธ์„ ์‚ฌ์šฉํ•˜๋ฉด ์ž…๋ ฅ ์ด๋ฏธ์ง€์—์„œ ์•Œ๋ฒ ๋„, ๋…ธ๋ง, ๋ฉ”ํƒˆ๋ฆญ, ๋Ÿฌํ”„๋‹ˆ์Šค ๋“ฑ์˜ ๊ณ ์œ  ์š”์†Œ๋ฅผ ์ถ”์ถœํ•˜์—ฌ ์žฌ์งˆ ๋ฐ ์กฐ๋ช… ํŽธ์ง‘๊ณผ ๊ฐ™์€ ๋‹ค์–‘ํ•œ ๋‹ค์šด์ŠคํŠธ๋ฆผ ์ž‘์—…์— ํ™œ์šฉํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

read the captionFigure 8: Relighting and material editing results. From in-the-wild captures (a), our model allows for relighting under novel illumination (b) and material property modifications (c).

๐Ÿ”ผ ์ด ๊ทธ๋ฆผ์€ ์ตœ์ ํ™” ๊ธฐ๋ฐ˜ ์—ญ๋ Œ๋”๋ง ๊ธฐ๋ฒ•์ธ NVDiffRecMC์— ์ €์ž๋“ค์ด ์ œ์•ˆํ•œ ๋ฐฉ๋ฒ•์„ ์ ์šฉํ•˜์—ฌ ์žฌ์งˆ ์ถ”์ • ๊ฒฐ๊ณผ๋ฅผ ํ–ฅ์ƒ์‹œํ‚จ ๊ฒƒ์„ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. ์ €์ž๋“ค์˜ ๋ฐฉ๋ฒ•์€ ๊ฐ ํ•™์Šต ์ด๋ฏธ์ง€๋ฅผ ํ•ด๋‹นํ•˜๋Š” ์žฌ์งˆ ์š”์†Œ๋กœ ๋ถ„ํ•ดํ•˜๊ณ , ์ด๋ฅผ pseudo-material label๋กœ ์‚ฌ์šฉํ•ฉ๋‹ˆ๋‹ค. ๋งค ๋ฐ˜๋ณต๋งˆ๋‹ค NVDiffRecMC์—์„œ ์˜ˆ์ธกํ•œ ์žฌ์งˆ ์š”์†Œ์™€ ์ €์ž๋“ค์˜ ๋ฐฉ๋ฒ•์œผ๋กœ ์˜ˆ์ธกํ•œ ๊ฐ’ ์‚ฌ์ด์˜ L2 ์ •๊ทœํ™” ํ•ญ์„ ์ถ”๊ฐ€ํ•˜์—ฌ ๋ฌผ๋ฆฌ์  ํƒ€๋‹น์„ฑ์„ ๋ณด์žฅํ•ฉ๋‹ˆ๋‹ค. ๊ทธ๋ฆผ์—์„œ ๋ณผ ์ˆ˜ ์žˆ๋“ฏ์ด, ์ €์ž๋“ค์˜ ๋ฐฉ๋ฒ•์„ ์ ์šฉํ•˜๋ฉด NVDiffRecMC์—์„œ ์žฌ๊ตฌ์„ฑ๋œ albedo์˜ ์ƒ‰์ƒ ๋ณ€ํ™” ๋ฌธ์ œ๊ฐ€ ํฌ๊ฒŒ ์™„ํ™”๋˜์–ด, ๋” ๋‚˜์€ ํ’ˆ์งˆ์˜ ๋ Œ๋”๋ง ๊ฒฐ๊ณผ๋ฅผ ์–ป์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

read the captionFigure 9: Optimization-based inverse rendering results. Our method guides NVDiffecMC generate more plausible material results.

๐Ÿ”ผ ์ด ๊ทธ๋ฆผ์€ OpenIllumination ๋ฐ NeRFactor ๋ฐ์ดํ„ฐ์…‹์—์„œ 4๊ฐœ์˜ OLAT(One-Light-At-a-Time) ์ด๋ฏธ์ง€๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ์˜ˆ์ธกํ•œ ์‚ฌ์ง„ ์ธก๋Ÿ‰ ์Šคํ…Œ๋ ˆ์˜ค ๊ฒฐ๊ณผ๋ฅผ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. OLAT ์กฐ๊ฑด์—์„œ๋Š” ๊ฐ ์ด๋ฏธ์ง€๊ฐ€ ์ฃผ๋ณ€ ์กฐ๊ด‘ ์—†์ด ๋‹จ์ผ ์  ๊ด‘์›์œผ๋กœ ์กฐ๋ช…๋˜์–ด ๊ทธ๋ฆผ์ž๊ฐ€ ์ƒ๊น๋‹ˆ๋‹ค. ๊ทธ๋ฆผ์—๋Š” ์ž…๋ ฅ OLAT ์ด๋ฏธ์ง€, ์˜ˆ์ธก๋œ ์•Œ๋ฒ ๋„ ๋ฐ ๋ฒ•์„  ๋งต์ด ํ‘œ์‹œ๋˜์–ด ์žˆ์Šต๋‹ˆ๋‹ค. IDArb์€ OLAT์™€ ๊ฐ™์€ ๊นŒ๋‹ค๋กœ์šด ์กฐ๊ฑด์—์„œ๋„ ์‹ค์ œ ๋ฐ ํ•ฉ์„ฑ ๋ฐ์ดํ„ฐ ๋ชจ๋‘์—์„œ ์ข‹์€ ๊ฒฐ๊ณผ๋ฅผ ์ƒ์„ฑํ•ฉ๋‹ˆ๋‹ค.

read the captionFigure 10: Photometric stereo results using 4 OLAT images in OpenIllumination and NeRFactor.

๐Ÿ”ผ ์ด ๊ทธ๋ฆผ์€ ์‹ค์ œ ๋ฐ์ดํ„ฐ์— ๋Œ€ํ•œ ์ถ”๊ฐ€์ ์ธ ๊ฒฐ๊ณผ๋ฅผ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. ๊ฐ ํ–‰์€ ์ž…๋ ฅ ์ด๋ฏธ์ง€์™€ ํ•ด๋‹น ์ด๋ฏธ์ง€์—์„œ ์ถ”์ถœํ•œ ์•Œ๋ฒ ๋„, ๋…ธ๋ฉ€, ๋ฉ”ํƒˆ๋ฆญ, ๋Ÿฌํ”„๋‹ˆ์Šค ๋งต์„ ๋‚˜ํƒ€๋ƒ…๋‹ˆ๋‹ค. IDArb์€ ๋‹ค์–‘ํ•œ ์‹ค์ œ ๋ฌผ์ฒด์— ๋Œ€ํ•ด ์‚ฌ์‹ค์ ์ด๊ณ  ์„ธ๋ถ€์ ์ธ ๊ฒฐ๊ณผ๋ฅผ ์ƒ์„ฑํ•ฉ๋‹ˆ๋‹ค. ์ด๋Š” IDArb์ด ํ•ฉ์„ฑ ๋ฐ์ดํ„ฐ๋กœ ํ›ˆ๋ จ๋˜์—ˆ์Œ์—๋„ ๋ถˆ๊ตฌํ•˜๊ณ  ์‹ค์ œ ์ด๋ฏธ์ง€์— ์ž˜ ์ผ๋ฐ˜ํ™”๋จ์„ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค.

read the captionFigure 11: More results on real-world data.

๐Ÿ”ผ ์ด ๊ทธ๋ฆผ์€ ์‹ค์ œ ๋ฐ์ดํ„ฐ์— ๋Œ€ํ•œ ์ถ”๊ฐ€ ๊ฒฐ๊ณผ์™€ ์žฌ๊ตฌ์„ฑ ๋ฐ ์žฌ์กฐ๋ช… ์ด๋ฏธ์ง€๋ฅผ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. ์ž…๋ ฅ ์ด๋ฏธ์ง€์—์„œ ์˜ˆ์ธก๋œ albedo, normal, metallic, roughness๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ๋ Œ๋”๋ง๋œ ์ด๋ฏธ์ง€(Recon)์™€ ๋‹ค์–‘ํ•œ ์กฐ๋ช… ์กฐ๊ฑด์—์„œ ์žฌ์กฐ๋ช…๋œ ์ด๋ฏธ์ง€(Relit 1, 2, 3)๋ฅผ ํ†ตํ•ด ๋ชจ๋ธ์˜ ์„ฑ๋Šฅ์„ ์‹œ๊ฐ์ ์œผ๋กœ ํ™•์ธํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์˜คํ† ๋ฐ”์ด, ์ž๋™์ฐจ, ํŠธ๋ŸผํŽซ, ๋นต๊ณผ ์žผ ๋“ฑ ๋‹ค์–‘ํ•œ ์ข…๋ฅ˜์˜ ๋ฌผ์ฒด์— ๋Œ€ํ•œ ๊ฒฐ๊ณผ๋ฅผ ์ œ์‹œํ•˜์—ฌ ๋ชจ๋ธ์˜ ์ผ๋ฐ˜ํ™” ๋Šฅ๋ ฅ์„ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค.

read the captionFigure 12: More results on real-world data. We also provide the reconstructed and relighting images.

๐Ÿ”ผ ์ด ๊ทธ๋ฆผ์€ ์—ฌ๋Ÿฌ ์‹œ์ ์—์„œ ์ดฌ์˜๋œ ๋ฐ์ดํ„ฐ์— ๋Œ€ํ•œ ์ถ”๊ฐ€์ ์ธ ๊ฒฐ๊ณผ๋ฅผ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. ๊ฐ ํ–‰์€ ์„œ๋กœ ๋‹ค๋ฅธ ๋‹ค์ค‘ ์‹œ์  ๋ฐ์ดํ„ฐ์…‹์„ ๋‚˜ํƒ€๋‚ด๋ฉฐ, ์ž…๋ ฅ ์ด๋ฏธ์ง€์™€ ํ•จ๊ป˜ ์˜ˆ์ธก๋œ ์•Œ๋ฒ ๋„, ๋…ธ๋ฉ€, ๋ฉ”ํƒˆ๋ฆญ, ๋Ÿฌํ”„๋‹ˆ์Šค ๋งต์ด ํ‘œ์‹œ๋ฉ๋‹ˆ๋‹ค. ์ฒซ ๋ฒˆ์งธ ํ–‰์€ ๋“œ๋Ÿผ ์„ธํŠธ, ๋‘ ๋ฒˆ์งธ ํ–‰์€ ๋‹ค์–‘ํ•œ ์Œ์‹์ด ๋‹ด๊ธด ์ ‘์‹œ, ์„ธ ๋ฒˆ์งธ ํ–‰์€ ์ƒŒ๋“œ์œ„์น˜์™€ ํ•ซ๋„๊ทธ๊ฐ€ ๋‹ด๊ธด ์ ‘์‹œ์ž…๋‹ˆ๋‹ค. ์ด ๊ทธ๋ฆผ์„ ํ†ตํ•ด IDArb ๋ชจ๋ธ์ด ๋‹ค์–‘ํ•œ ๋‹ค์ค‘ ์‹œ์  ๋ฐ์ดํ„ฐ์—์„œ ์ผ๊ด€์„ฑ ์žˆ๋Š” ๋ณธ์งˆ์  ์š”์†Œ๋ฅผ ์ถ”์ถœํ•˜๋Š” ๋Šฅ๋ ฅ์„ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค.

read the captionFigure 13: More results on multi-view data.

๐Ÿ”ผ NeRD ๋ฐ์ดํ„ฐ์…‹(Boss ์™ธ, 2021a)์˜ ๊ฐ ์žฅ๋ฉด์— ๋Œ€ํ•ด 4๊ฐœ์˜ ๋ทฐ๋ฅผ ์ž…๋ ฅํ•˜์—ฌ ๊ทน๋‹จ์ ์ธ ์กฐ๋ช… ๋ณ€ํ™”๊ฐ€ ์žˆ๋Š” ๋‹ค์ค‘ ๋ทฐ ์ด๋ฏธ์ง€์—์„œ ๋ณธ ๋ชจ๋ธ์˜ ์„ฑ๋Šฅ์„ ํ‰๊ฐ€ํ•ฉ๋‹ˆ๋‹ค. ๊ฐ ๋ทฐ๋Š” ์„œ๋กœ ๋‹ค๋ฅธ ์กฐ๋ช… ์กฐ๊ฑด์—์„œ ๋ Œ๋”๋ง๋ฉ๋‹ˆ๋‹ค. ์ž…๋ ฅ ์ด๋ฏธ์ง€, ์•Œ๋ฒ ๋„, ๋…ธ๋ฉ€, ๋ฉ”ํƒˆ๋ฆญ, ๋Ÿฌํ”„๋‹ˆ์Šค๋ฅผ ์˜ˆ์ธกํ•œ ๊ฒฐ๊ณผ๊ฐ€ ํ‘œ์‹œ๋ฉ๋‹ˆ๋‹ค.

read the captionFigure 14: Multiview images with extreme lighting variation. For each scene in NeRD datasetย (Boss etย al., 2021a), we input 4 views.

๐Ÿ”ผ ์ด ๊ทธ๋ฆผ์€ IDArb ๋ชจ๋ธ์˜ ์‹คํŒจ ์‚ฌ๋ก€๋ฅผ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. ์ฒซ ๋ฒˆ์งธ ํ–‰์€ ์•ผ์™ธ ์žฅ๋ฉด์œผ๋กœ, ๋ชจ๋ธ์ด ๊ฐ์ฒด ์ค‘์‹ฌ ๋ฐ์ดํ„ฐ์— ๋Œ€ํ•ด ์ฃผ๋กœ ํ›ˆ๋ จ๋˜์—ˆ๊ธฐ ๋•Œ๋ฌธ์— ์–ด๋ ค์›€์„ ๊ฒช์Šต๋‹ˆ๋‹ค. ๋‘ ๋ฒˆ์งธ ํ–‰์€ ํ…์ŠคํŠธ๊ฐ€ ์žˆ๋Š” ์ด๋ฏธ์ง€๋กœ, ๋ชจ๋ธ์ด ์˜ฌ๋ฐ”๋ฅธ ํ…์ŠคํŠธ ๊ตฌ์กฐ๋ฅผ ๋ณต๊ตฌํ•˜์ง€ ๋ชปํ•ฉ๋‹ˆ๋‹ค. ์„ธ ๋ฒˆ์งธ ํ–‰์€ ์ „ํ™”๊ธฐ ์ด๋ฏธ์ง€๋กœ, ๋ชจ๋ธ์ด ๋ฏธ๋ฌ˜ํ•œ ์žฌ์งˆ ๋””ํ…Œ์ผ์„ ๋ณด์กดํ•˜์ง€ ๋ชปํ•˜๊ณ  ์ง€๋‚˜์น˜๊ฒŒ ๋‹จ์ˆœํ™”๋œ ์ถœ๋ ฅ์„ ์ƒ์„ฑํ•ฉ๋‹ˆ๋‹ค. ์ด๋Ÿฌํ•œ ๋ฌธ์ œ๋Š” ํ•ฉ์„ฑ ํ›ˆ๋ จ ๋ฐ์ดํ„ฐ๊ฐ€ ์ข…์ข… ๋” ๋‹จ์ˆœํ•œ ์žฌ์งˆ ๋ณ€ํ˜•์„ ํฌํ•จํ•˜๊ณ  ์žˆ์–ด ๋ชจ๋ธ์ด ์„ธ๋ฐ€ํ•œ ์žฌ์งˆ ์†์„ฑ์„ ๊ณผ๋„ํ•˜๊ฒŒ ๋‹จ์ˆœํ™”ํ•˜๊ฒŒ ๋งŒ๋“œ๋Š” ๊ฒƒ์—์„œ ๋น„๋กฏ๋ฉ๋‹ˆ๋‹ค.

read the captionFigure 15: Failure cases.

๐Ÿ”ผ Mip-NeRF 360 ๋ฐ์ดํ„ฐ์…‹์˜ ์•ผ์™ธ ์žฅ๋ฉด์— ๋Œ€ํ•œ IDArb์˜ ๊ฒฐ๊ณผ๋ฅผ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. ๊ฐ ์žฅ๋ฉด์— ๋Œ€ํ•ด 4๊ฐœ์˜ ๋ทฐ๋ฅผ ์ž…๋ ฅ์œผ๋กœ ์‚ฌ์šฉํ–ˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋ฆผ์—๋Š” ์ž…๋ ฅ ์ด๋ฏธ์ง€, ์˜ˆ์ธก๋œ ์•Œ๋ฒ ๋„, ๋ฒ•์„ , ๋ฉ”ํƒˆ๋ฆญ, ๋Ÿฌํ”„๋‹ˆ์Šค ๋งต์ด ํฌํ•จ๋˜์–ด ์žˆ์Šต๋‹ˆ๋‹ค. IDArb์€ ๋‹ค์–‘ํ•œ ์•ผ์™ธ ์žฅ๋ฉด์—์„œ ์ผ๊ด€๋˜๊ณ  ์ •ํ™•ํ•œ ๋‚ด์žฌ์  ์ด๋ฏธ์ง€ ๋ถ„ํ•ด๋ฅผ ์ˆ˜ํ–‰ํ•˜๋Š” ๊ฒƒ์„ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค.

read the captionFigure 16: Results on Mip-NeRF 360ย (Barron etย al., 2022) (Part 1, outdoor). We input 4 views for each scene.
More on tables
# OLAT Images224488
MethodsAlbedo\uparrowNormal\uparrowAlbedo\uparrowNormal\uparrowAlbedo\uparrowNormal\uparrow
IID22.23-22.40-22.86-
RGB <->X21.290.7122.080.7723.290.81
SDM-UniPS22.950.7423.200.7623.370.81
Ours23.500.8323.640.8425.150.85

๐Ÿ”ผ NeRFactor ๋ฐ์ดํ„ฐ์…‹์—์„œ Photometric Stereo์— ๋Œ€ํ•œ ์ •๋Ÿ‰์  ๊ฒฐ๊ณผ๋ฅผ ๋ณด์—ฌ์ฃผ๋Š” ํ‘œ์ž…๋‹ˆ๋‹ค. 2, 4, 8๊ฐœ์˜ OLAT(One-Light-At-a-Time) ์ด๋ฏธ์ง€๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ์„ฑ๋Šฅ์„ ํ‰๊ฐ€ํ–ˆ์œผ๋ฉฐ, ์ œ์•ˆ๋œ ๋ฐฉ๋ฒ•(Ours)์ด ๋น„๊ต๋œ ๋ชจ๋“  ๋ฐฉ๋ฒ• ์ค‘์—์„œ ์ตœ๊ณ ์˜ ์„ฑ๋Šฅ์„ ๋‹ฌ์„ฑํ–ˆ์Šต๋‹ˆ๋‹ค. OLAT์€ ๊ฐ ์ด๋ฏธ์ง€๊ฐ€ ์ฃผ๋ณ€๊ด‘ ์—†์ด ๋‹จ์ผ ์  ๊ด‘์›์œผ๋กœ๋งŒ ๋น„์ถฐ์ง€๋Š” ๊นŒ๋‹ค๋กœ์šด ์กฐ๊ฑด์œผ๋กœ, ๊ทธ๋ฆผ์ž๋„ ๊ฐ•ํ•˜๊ฒŒ ๋“œ๋ฆฌ์›Œ์ง‘๋‹ˆ๋‹ค. ์ด๋Ÿฌํ•œ ์กฐ๊ฑด์—์„œ๋„ ๋ณธ ์—ฐ๊ตฌ์˜ ๋ฐฉ๋ฒ•์€ ๋‹ค๋ฅธ ๋ฐฉ๋ฒ•๋“ค๊ณผ ๋น„๊ตํ•˜์—ฌ albedo ๋ฐ normal ์˜ˆ์ธก ์ •ํ™•๋„๊ฐ€ ๊ฐ€์žฅ ๋†’์•˜์Šต๋‹ˆ๋‹ค.

read the captionTable 2: Quantitative results for photometric stereo on NeRFactor. We evaluate performance using 2, 4, and 8 OLAT images, and achieve the best performance among all compared methods.
NerfactorSynthetic4Relight
Albedo (raw)Albedo (scaled)RelightingAlbedo (raw)Albedo (scaled)RelightingRoughness
NVDiffRecMC17.8925.8822.6517.0329.6424.050.046
NVDiffRecMC w/ Ours20.9026.6127.2026.4230.7331.010.014

๐Ÿ”ผ IDArb๋ฅผ pseudo label๋กœ ์‚ฌ์šฉํ•˜์—ฌ ์ตœ์ ํ™” ๊ธฐ๋ฐ˜ ์—ญ๋ Œ๋”๋ง ๊ธฐ๋ฒ•์˜ ์„ฑ๋Šฅ์„ ํ–ฅ์ƒ์‹œํ‚ค๋Š” ์‹คํ—˜ ๊ฒฐ๊ณผ๋ฅผ NeRFactor ๋ฐ Synthetic4Relight ๋ฐ์ดํ„ฐ์…‹์— ๋Œ€ํ•ด ๋‚˜ํƒ€๋‚ธ ํ‘œ์ž…๋‹ˆ๋‹ค. albedo, relighting, roughness์— ๋Œ€ํ•œ ์ •๋Ÿ‰์  ํ‰๊ฐ€ ๊ฒฐ๊ณผ๋ฅผ IDArb๋ฅผ ์‚ฌ์šฉํ•˜์ง€ ์•Š์€ ๊ฒฝ์šฐ์™€ ๋น„๊ตํ•˜์—ฌ ์ œ์‹œํ•ฉ๋‹ˆ๋‹ค.

read the captionTable 3: Ablation onย IDArb pseudo labels for optimization-based inverse rendering on NeRFactor and Synthetic4Relight datasets.
# L# V124812
129.1628.7230.1230.4930.77
229.9630.2630.9631.1331.26
330.2530.7331.1631.3331.40

๐Ÿ”ผ ์ด ํ‘œ๋Š” ๋‹ค์–‘ํ•œ ์ˆ˜์˜ ๋ทฐํฌ์ธํŠธ(# V) ๋ฐ ์กฐ๋ช… ์กฐ๊ฑด(# L)์— ๋”ฐ๋ฅธ ์•Œ๋ฒ ๋„ ์„ฑ๋Šฅ(PSNR, โ†‘โ†‘๋Š” ๊ฐ’์ด ํด์ˆ˜๋ก ์ข‹์Œ)์„ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. ๋ทฐํฌ์ธํŠธ ์ˆ˜์™€ ์กฐ๋ช… ์กฐ๊ฑด ์ˆ˜๊ฐ€ ์ฆ๊ฐ€ํ•จ์— ๋”ฐ๋ผ ์•Œ๋ฒ ๋„ ์ถ”์ • ์„ฑ๋Šฅ์ด ํ–ฅ์ƒ๋จ์„ ์•Œ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

read the captionTable 4: Albedo Performance โ†‘โ†‘\uparrowโ†‘ across different numbers of viewpoints (# V) and lightings (# L).
# L# V124812
10.9090.9100.9250.9300.932
20.9220.9270.9300.9330.934
30.9260.9310.9310.9340.935

๐Ÿ”ผ ๋‹ค์–‘ํ•œ ์ˆ˜์˜ ๋ทฐํฌ์ธํŠธ(# V)์™€ ์กฐ๋ช… ์กฐ๊ฑด(# L)์— ๋”ฐ๋ฅธ ๋ฒ•์„  ์˜ˆ์ธก ์„ฑ๋Šฅ(Cosine Similarity)์„ ๋ณด์—ฌ์ฃผ๋Š” ํ‘œ์ž…๋‹ˆ๋‹ค. ๋ทฐํฌ์ธํŠธ์™€ ์กฐ๋ช… ์กฐ๊ฑด ์ˆ˜๊ฐ€ ์ฆ๊ฐ€ํ•จ์— ๋”ฐ๋ผ ๋ฒ•์„  ์˜ˆ์ธก ์„ฑ๋Šฅ์ด ํ–ฅ์ƒ๋˜๋Š” ๊ฒƒ์„ ํ™•์ธํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

read the captionTable 5: Normal Performance โ†‘โ†‘\uparrowโ†‘ across different numbers of viewpoints (# V) and lightings (# L).
# L# V124812
10.1050.1160.0680.0590.050
20.0610.0680.0470.0440.042
30.0610.0560.0480.0450.040

๐Ÿ”ผ ์ด ํ‘œ๋Š” ๋‹ค์–‘ํ•œ ์ˆ˜์˜ ๋ทฐํฌ์ธํŠธ(# V)์™€ ์กฐ๋ช… ์กฐ๊ฑด(# L)์— ๋Œ€ํ•œ ๊ธˆ์†์„ฑ ์„ฑ๋Šฅ์„ ์ •๋Ÿ‰์ ์œผ๋กœ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. ๋ทฐํฌ์ธํŠธ ์ˆ˜์™€ ์กฐ๋ช… ์กฐ๊ฑด์ด ์ฆ๊ฐ€ํ•จ์— ๋”ฐ๋ผ ๊ธˆ์†์„ฑ ์ถ”์ • ์„ฑ๋Šฅ์ด ํ–ฅ์ƒ๋จ์„ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. ์ˆซ์ž๊ฐ€ ๋‚ฎ์„์ˆ˜๋ก ์„ฑ๋Šฅ์ด ๋” ์ข‹๋‹ค๋Š” ๊ฒƒ์„ ์˜๋ฏธํ•ฉ๋‹ˆ๋‹ค.

read the captionTable 6: Metallic Performance โ†“โ†“\downarrowโ†“ across different numbers of viewpoints (# V) and lightings (# L).
# L# V124812
10.0490.0500.0240.0190.021
20.0430.0260.0190.0160.015
30.0310.0220.0160.0140.013

๐Ÿ”ผ ์ด ํ‘œ๋Š” ๋‹ค์–‘ํ•œ ์ˆ˜์˜ ๋ทฐํฌ์ธํŠธ(# V)์™€ ์กฐ๋ช… ์กฐ๊ฑด(# L)์— ๋”ฐ๋ฅธ ๊ฑฐ์น ๊ธฐ ์„ฑ๋Šฅ์„ ์ •๋Ÿ‰์ ์œผ๋กœ ๋ณด์—ฌ์ค๋‹ˆ๋‹ค. ๋ทฐํฌ์ธํŠธ ์ˆ˜์™€ ์กฐ๋ช… ์กฐ๊ฑด์ด ์ฆ๊ฐ€ํ•จ์— ๋”ฐ๋ผ ๊ฑฐ์น ๊ธฐ ์˜ˆ์ธก ์„ฑ๋Šฅ์ด ํ–ฅ์ƒ๋˜๋Š” ๊ฒƒ์„ ์•Œ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

read the captionTable 7: Roughness Performance โ†“โ†“\downarrowโ†“ across different numbers of viewpoints (# V) and lightings (# L).
SSIMโ†‘PSNRโ†‘LPIPSโ†“
Ours0.87627.980.117
IntrinsicAnything0.89625.660.150

๐Ÿ”ผ MIT-Intrinsic ๋ฐ์ดํ„ฐ์…‹์—์„œ albedo ์˜ˆ์ธก ์ •ํ™•๋„๋ฅผ IntrinsicAnything์™€ ๋น„๊ตํ•œ ํ‘œ์ž…๋‹ˆ๋‹ค. SSIM, PSNR, LPIPS ์ฒ™๋„๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ํ‰๊ฐ€ํ–ˆ์Šต๋‹ˆ๋‹ค.

read the captionTable 8: Quantitative comparisons on MIT-Intrinsic.
Normal Cosine Distanceโ†“Albedo SSIMโ†‘Albedo PSNRโ†‘Albedo LPIPSโ†“Re-rendering PSNR-Hโ†‘Re-rendering PSNR-Lโ†‘Re-rendering SSIMโ†‘Re-rendering LPIPSโ†“
Ours(single)0.0410.97841.300.03924.1131.280.9690.024
Ours(multi)0.0290.97841.460.03824.3631.430.9700.024
StableNormal0.038
IntrinsicNeRF0.98139.310.048

๐Ÿ”ผ Stanford-ORB ๋ฐ์ดํ„ฐ์…‹์—์„œ์˜ ์ •๋Ÿ‰์  ๋น„๊ต ๊ฒฐ๊ณผ๋ฅผ ๋ณด์—ฌ์ฃผ๋Š” ํ‘œ์ž…๋‹ˆ๋‹ค. ๋‹จ์ผ ์ด๋ฏธ์ง€ ์ž…๋ ฅ๊ณผ ๋‹ค์ค‘ ์ด๋ฏธ์ง€ ์ž…๋ ฅ์— ๋Œ€ํ•œ ์ €ํฌ ๋ชจ๋ธ(Ours)์˜ ์„ฑ๋Šฅ์„ StableNormal ๋ฐ IntrinsicNeRF์™€ ๋น„๊ตํ•ฉ๋‹ˆ๋‹ค. ๋…ธ๋ฉ€ ์ถ”์ •, ์•Œ๋ฒ ๋„ ์ถ”์ •, ๊ทธ๋ฆฌ๊ณ  ๋ฆฌ๋ Œ๋”๋ง ๊ฒฐ๊ณผ์— ๋Œ€ํ•œ ํ‰๊ฐ€ ๊ฒฐ๊ณผ๋ฅผ ํฌํ•จํ•˜๋ฉฐ, ๊ฐ ๋ฉ”ํŠธ๋ฆญ์— ๋Œ€ํ•œ ์ตœ๊ณ  ์„ฑ๋Šฅ์€ ๋ณผ๋“œ์ฒด๋กœ ํ‘œ์‹œ๋ฉ๋‹ˆ๋‹ค.

read the captionTable 9: Quantitative comparisons on Stanford-ORB.

Full paper
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