Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Mip-NeRF 360: Unbounded Anti-Aliased Neural Radiance Fields
Search
peisuke
April 30, 2023
Technology
0
7.4k
Mip-NeRF 360: Unbounded Anti-Aliased Neural Radiance Fields
第58回 コンピュータビジョン勉強会@関東
深層学習+3D論文読み会
Mip-NeRF 360: Unbounded Anti-Aliased Neural Radiance Fields
peisuke
April 30, 2023
Tweet
Share
More Decks by peisuke
See All by peisuke
LangGraphで始めるマルチエージェントシステム
peisuke
12
3.5k
AutoGenで作るLLM Agen
peisuke
1
1.1k
Self-RAG: Learning to Retrieve, Generate and Critique through Self-Reflections
peisuke
9
1.3k
LangChain Toolsの運用と改善
peisuke
4
2.4k
GNeRF: GAN-based Neural Radiance Field without Posed Camera
peisuke
1
670
TTS Skins: Speaker Conversion via ASR
peisuke
0
340
A Quantum Computational Approach to Correspondence Problems on Point Sets
peisuke
0
650
F0-Consistent Many-to-many Non-parallel Voice Conversion via Conditional Autoencoder
peisuke
0
160
YOLACT real-time instance segmentation
peisuke
1
220
Other Decks in Technology
See All in Technology
テスト・設計研修【MIXI 24新卒技術研修】
mixi_engineers
PRO
0
170
Git 研修 Advanced【MIXI 24新卒技術研修】
mixi_engineers
PRO
0
200
初中級者用如何使用backlog -VALE TUDOEDITION-
in0u
0
140
Docker互換のセキュアなコンテナ実行環境「Podman」超入門
devops_vtj
6
3.2k
簡単に始めるSnowflakeの機械学習
nayuts
1
190
CTOから見た事業開発とプロダクト開発 / My Perspective on Business and Product Development as CTO
keisuke69
4
960
DDDにおける認可の扱いとKotlinにおける実装パターン / authorization-for-ddd-and-kotlin-implement-pattern
urmot
4
390
How to Think Like a Performance Engineer
csswizardry
4
590
Git 研修 Basic【MIXI 24新卒技術研修】
mixi_engineers
PRO
0
310
データベース研修 分析向けSQL入門【MIXI 24新卒技術研修】
mixi_engineers
PRO
0
110
コミュニティサービスに「あなたへ」フィードを リリースするまでの試行錯誤
takapy
1
150
開発生産性をむしろ向上させる セキュリティパートナーの作り方 / Dev Productivity Con 2024
flatt_security
0
370
Featured
See All Featured
Building a Modern Day E-commerce SEO Strategy
aleyda
25
6.7k
Building Effective Engineering Teams - LeadDev
addyosmani
47
2.2k
Side Projects
sachag
451
42k
Understanding Cognitive Biases in Performance Measurement
bluesmoon
18
1.2k
The Cost Of JavaScript in 2023
addyosmani
31
4.7k
Unsuck your backbone
ammeep
666
57k
Web Components: a chance to create the future
zenorocha
307
41k
Building Better People: How to give real-time feedback that sticks.
wjessup
357
18k
Designing for Performance
lara
604
67k
Bootstrapping a Software Product
garrettdimon
PRO
304
110k
5 minutes of I Can Smell Your CMS
philhawksworth
200
19k
A better future with KSS
kneath
231
17k
Transcript
Mip-NeRF 360: Unbounded Anti- Aliased Neural Radiance Fields Authors: Jonathan
T. Barron, Ben Mildenhall, Dor Verbin Presenter: @peisuke
ࣗݾհ ໊લɿ౻ຊ ܟհ ॴଐɿ"#&+"ʢ-BCTϥϘʣ ෭ۀɿ.-Λத৺ʹ૬ஊ͔Β։ൃ·Ͱͬͯ·͢ ੋඇ͓͕͚Լ͍͞ ׆ಈɿ5XJUUFS!QFJTVLF (JUIVC IUUQTHJUIVCDPNQFJTVLF 2JJUB
IUUQTRJJUBDPNQFJTVLF 4MJEF4IBSF IUUQTXXXTMJEFTIBSFOFU'VKJNPUP,FJTVLF 4QFBLFS%FDL IUUQTTQFBLFSEFDLDPNQFJTVLF গ͚ͩ͠ॻ͍ͯ·͢
֓ཁ • ͲΜͳจʁ • /F3'ͰϘϦϡʔϜϨϯμϦϯάʹ͓͍֤ͯͷ৭ɾີΛ//Ͱ ग़ྗ͢Δ͜ͱͰը૾Λੜ • /F3'ʹ͓͍ͯɺத৺͔Βԕ͍େͳۭؒΛ//Ͱ࠶ݱ͢Δ͜ͱ͕͠ ͘ɺத৺Ҏ֎ͷ෮ݩ͕͔ͬͨ͠Λղܾ •
ʁ • ۭؒΛมͯ͠ԕ͍ྖҬΛখ͍͞ྖҬʹຒΊࠐΉ͜ͱͰԕ͞ͷΛ ղܾ • ͦͷଞʹɺৠཹʹΑΔߴԽɾਖ਼نԽʹΑΔϊΠζݮͳͲΛ͍ͯ͠ Δ
ख๏ͷσϞ
/F3'ͷ֓ཁʢʣ • ۭؒͷʢҐஔ͖ͷ࣍ݩʣʹؔ͢Δ৭ɾີΛ༧ଌ͢Δ ωοτϫʔΫ • ΧϝϥͷҐஔΛܾΊΔͱɺωοτϫʔΫͷग़ྗ͢ΔΛݩʹϘ ϦϡʔϜϨϯμϦϯά͢Δ͜ͱͰը૾Λੜ 1PTJUJPOBM&ODPEJOH͞Εͨͷ ใ ࣍ϖʔδͰઆ໌
ີ͔Β XΛܭࢉ
/F3'ͷ֓ཁʢʣ • ۭؒͷΛߴ࣍ݩͷಛྔʹมʢQPTJUJPOBMFODPEJOHɺ 1&ʣ͢Δ͜ͱͰߴਫ਼Խ 𝛾 𝒙 = sin 2!𝒙𝜋 ,
cos 2!𝒙𝜋 , … , sin 2"𝒙𝜋 , cos 2"𝒙𝜋
NJQ/F3'ͷ֓ཁʢʣ • 𝛾 𝒙 Λͱͯ͠ѻ͍ɺͦͷҐஔͷ৭ΛϨϯμϦϯά͢Δͱɺ पғͷใΛಘΒΕͣδϟΪʔ͕ൃੜ͢Δ • ࢹઢΛίʔϯͰଊ͑ɺίʔϯͷੵΛ༻͍ΔࣄͰߴਫ਼Խ • ίʔϯΛΨεͰۙࣅɺ1&ͷظΛ͏͜ͱͰɺੵΛ
؆қతʹܭࢉ Ͱͳ͘ɺ֤ྖҬͷ 1&ͷظΛ͏
NJQ/F3'ͷ֓ཁʢʣ • 1&ͨ͠ಛྔͷظΛऔΔͱɺࢹ͔Βԕ͍ྖҬͰߴपྖ Ҭ͕খ͘͞ͳΔ • ڑʹԠͨ͡ૈ͞ΛՃຯͯ͠ωοτϫʔΫ͕৭Λग़ྗͯ͘͠ΕΔ ࢹۙ͘Ͱɺ͕ ڱ͍ͨΊߴपྖҬͷ ใ͕Δ ࢹ͔ΒΕΔͱɺ
͕͘ͳΔͨΊप ͷΈʹͳΔ
NJQ/F3'ͷ՝ • Χϝϥ͔Βԕ͍ྖҬίʔϯ ͕େ͖͘ͳΔ • த৺ʹ͋ΔମҎ֎ͷपғ ڥͷ෮ݩ͕ࠔ த৺ྖҬ΄Ͳࡉ͔ ͍ใ͕ඞཁ पғͷใૈͯ͘ྑ͍
֎ଆͷྖҬͷσʔλ͕ૄʹͳΔͨΊɺ ্ख͘෮ݩͰ͖ͳ͍
4DFOFBOE3BZ1BSBNFUFSJ[BUJPO • த৺͔ΒܘͷྖҬ·ͰมΘΒͣ • ܘҎ্ͷྖҬɺԕ͘ͳΔ΄ͲڑΛॖΊɺܘͷྖҬʹ ແݶԕํ͕ऩ·ΔΑ͏ʹม • ࣍ۙࣅͯ͠ϠίϏߦྻΛ͍ΨεΛม ਤͷପԁҎԼͰม
ৠཹΛ༻͍ͨߴԽʢʣ • NJQ/F3'Ͱɺ·ͣશҬΛૈཻ͍ͰϨΠτϨʔγϯά͠ɺମ͕Կ ॲʹ͋Δͷ͔Λେ·͔ʹѲ • ࣍ʹɺମ͕ଘࡏ͢ΔҐஔʹ੍ݶ͠ɺ࠶ϨΠτϨʔγϯά • ͜ΕΛ܁Γฦ͢͜ͱͰৄࡉͳܗঢ়Λ෮ݩՄೳɺܭࢉ͕͍ͱ͍͏՝͕͋ Δ
ৠཹΛ༻͍ͨߴԽʢ̎ʣ • ૈ͍ྖҬ୳ࡧϑΣʔζͰɺ৭ͷใΛ࣋ͨͳ͍ɺΑΓখ͞ͳϞσϧ ʢ1SPQ.-1ʣͰମͷҐஔΛ୳ࡧ • ࠷ޙͷϨϯμϦϯάͷΈɺ৭ͷใΛ࣋ͭϞσϧʢ/F3'.-1ʣͰ୳ࡧ • ֤ϞσϧʹҰ؏ੑΛ࣋ͨͤΔͨΊɺωοτϫʔΫͷৠཹΛ༻͍Δ
ωοτϫʔΫͷৠཹʹ͍ͭͯ • /F3'.-1͔ΒಘΒΕΔମͷҐஔͷใΛ༻͍ͯɺ1SPQ.-1Λֶश ͢Δ͜ͱͰҰ؏ੑΛอͭ • ྆ํͷωοτϫʔΫؒͰඞཁͱͳΔCJOͷີҟͳΔͷͰ Λൺֱͨ͠ৠཹ͕ग़དྷͳ͍ • /F3'.-1͔ΒಘΒΕΔॏΈͷώετάϥϜΑΓɺ1SPQ.-1ͷώε τάϥϜ͕େ͖͘ͱ͍͏੍Λ͏
• ͜ΕͪΐͬͱෳࡶͳͷͰ࣍ͷϖʔδͰઆ໌ ࠷ऴతʹɺମྖҬʹ͓ ͍ͯX͕େ͖͘ͳΔɻ· ͨɺૈ͍CJOͷ1SPQ.-1 ͕ಘΒΕΔ
• ϨΠ্ʹ͋ΔମͷॏΈXͷώετάϥϜΛߟ͑Δ ώετάϥϜͷൺֱ ϨΠ্ͷମͷॏΈ w ମͷॏΈͷώετάϥϜ
ώετάϥϜͷൺֱ /F3'.-1ͷ ώετάϥϜ 1SPQ.-1ͷ ώετάϥϜ /F3'.-1ͷͱ͋ΔྖҬ5JͷॏΈXJ ΑΓɺ5JΛؚΉྖҬ5Kͷώετά ϥϜXKͷ໘ੵͷํ͕େ͖͘ͳΔ
ਖ਼ଇԽ • /F3'Λֶश͢Δͱɺಛʹԕ͍ΤϦΞʹ͓͍ͯܗঢ়෮ݩͷͨ Ίͷใ͕Γͣෆྑઃఆ͕ൃੜ͠ɺϊΠζ͕ൃੜ • ਖ਼ଇԽʹΑͬͯϊΠζͷݮΛߦ͏
ਖ਼ଇԽ • ॏΈ͆ͷ͕ͳΔ͘σϧλؔʹۙ͘ͳΔΑ͏ͳ੍Λͭ ͚Δ σϧλؔʹͳΔͱɺ X V ɺX W ͕ڞʹͷ࣌
ʹɺVW͕ʹ͖ۙͮɺͦ ΕҎ֎ɺΑ্ͬͯࣜ θϩʹۙͮ͘ 𝑢 ≠ 𝑣ͷ࣌ʹɺw 𝑢 , 𝑤 𝑣 > 0 Ͱ͋ΔͱϖφϧςΟͱͳΔ
ਖ਼ଇԽ • ઌఔͷੵܭࢉͰ͖ͳ͍͕ɺX֤ΠϯλʔόϧͰҰఆ ʹͳΔͷͰɺҎԼͷΑ͏ʹॻ͖දͤΔ • ޯΛܭࢉ͢ΔͱɺਤͷΑ͏ͳํʹॏΈ͕มԽ͢Δྗ͕ಇ͘
࠷దԽ • ը૾ͷ෮ݩϩεɺਖ਼ଇԽʹΑͬͯ/F3'.-1Λɺ࠷ޙͷ߲Ͱ 1SPQ.-1Λֶश • Ϟσϧ • 1SPQ.-1ύϥϝʔλͷӅΕΛ࣋ͭɺϨΠϠʔͷ.-1 • /F3'.-1ύϥϝʔλͷӅΕΛ࣋ͭɺϨΠϠʔͷ.-1
ը૾ͷ෮ݩϩε ਖ਼ଇԽ߲ 1SPQ.-1ͷֶश
࣮ݧ݁Ռ • σʔλ • ৽͍͠σʔληοτɺͭͷ֎ɺͭͷ • ݅ • /F3' NJQ/F3'
/F3' ͱൺֱ • $0-."1ͰࣗݾҐஔਪఆ • ܭࢉڥ • 516WXJUIDPSFT • ࢦඪ • 14/3 44*. -1*14
ఆྔධՁ
ఆੑධՁ
·ͱΊ • NJQ/F3'ͷ՝Ͱ͋ͬͨԕํͷྖҬΛਫ਼ྑ͘෮ݩ͢Δख๏ ΛఏҊ • 4DFOFBOE3BZ1BSBNFUFSJ[BUJPOʹΑΔԕํ෮ݩߴਫ਼Խɺ ৠཹʹΑΔߴԽɺਖ਼ଇԽʹΑΔϊΠζআڈΛఏҊ