Awọn aaye Radiance Neural
Awọn aaye Radiance Neural (NeRF) tun ṣe iwoye 3D ni kikun lati ọwọ diẹ ti awọn fọto lasan, jẹ ki o fo kamẹra si awọn aaye iwo-tuntun.
Akopọ
It reframed 3D capture as training a tiny neural network rather than building a mesh.
Jin Dive
Ti ṣe afihan ni ọdun 2020 nipasẹ Mildenhall ati awọn ẹlẹgbẹ, NeRF tọju gbogbo ibi iṣẹlẹ inu nẹtiwọọki nkankikan kekere kan (perceptron multilayer kan). Fi fun aaye 3D kan ati itọsọna wiwo, nẹtiwọọki n ṣe abajade awọ aaye yẹn ati bii o ti jẹ akomo. Lati ṣe piksẹli kan, NeRF ṣe iyaworan ray sinu ibi iṣẹlẹ, ṣe ayẹwo awọn aaye lẹgbẹẹ rẹ, awọn ibeere nẹtiwọọki, ati idapọ awọn abajade ni lilo ṣiṣe iwọn didun. Nitoripe gbogbo ilana yii jẹ iyatọ, nẹtiwọọki naa jẹ ikẹkọ nipa fifiwera awọn piksẹli ti a ṣe si awọn fọto igbewọle gidi ati ṣatunṣe titi wọn o fi baamu. Isanwo naa jẹ fọtoyiya idaṣẹ, pẹlu awọn ipa ti o gbẹkẹle wiwo bi awọn ifojusọna ati awọn ifojusi didan ti o yipada bi o ti nlọ. Awọn isalẹ ni pe ipele kọọkan nilo ṣiṣe ikẹkọ tirẹ, ati pe ọna atilẹba ti lọra si ọkọ oju-irin mejeeji ati fifunni.
Imọ-imọ-ẹrọ
NeRF ṣe aṣoju iṣẹlẹ kan bi iṣẹ 5D ti nlọsiwaju: titẹ sii ipo kan (x, y, z) pẹlu itọsọna wiwo (awọn igun meji), ati MLP da awọ RGB pada ati iwuwo iwọn didun. Alaye pataki kan jẹ fifi koodu ipo, eyiti awọn maapu ṣe ipoidojuko nipasẹ sine-igbohunsafẹfẹ giga ati awọn iṣẹ cosine ki nẹtiwọọki le gba alaye didasilẹ dipo iṣelọpọ iṣelọpọ blurry. Rendering ṣepọ awọ ati iwuwo lẹgbẹẹ ray kamẹra kọọkan, isunmọ isunmọ, awọn apẹẹrẹ akomo diẹ sii darale, deede iṣiro iṣiro iwọn didun kilasika ṣe ikẹkọ.
Ipa Ilana
Iyara ati iwọn
Visual AI le ṣe adaṣe adaṣe, wiwa, ati awọn iṣẹ ṣiṣe taagi ni iwọn.
Kọ awọn yiyan
Awọn ẹgbẹ ẹda le ṣe apẹrẹ awọn imọran yiyara pẹlu awọn atunyẹwo afọwọṣe diẹ.
Ẹgbẹ ati ṣiṣan iṣẹ
Awọn iṣẹ ṣiṣe le lo aworan ati awọn ifihan agbara fidio ti o nira tẹlẹ lati ṣiṣẹ.
Ojo iwaju ti Awọn aaye Radiance Neural
Iwadi NeRF gbamu lẹhin ọdun 2020, pẹlu awọn atẹle bii ikẹkọ gige Lẹsẹkẹsẹ-NGP lati awọn wakati si iṣẹju-aaya nipa lilo awọn koodu koodu hash-grid, ati Mip-NeRF imudara didara kọja awọn iwọn. Awọn aaye ti wa ni increasingly dapọ pẹlu tabi ni laya nipa Gaussian Splatting, eyi ti o mu yiyara. Reti awọn ilana ti NeRF ti ari ni aworan agbaye, awọn iwo ọja e-commerce, awọn ipa wiwo fiimu, ati AR/VR, pẹlu idagbasoke ni awọn NeRF ti o ni agbara ti o mu awọn iwoye gbigbe ati “ninu-egan” mu pẹlu ina iyipada. Awọn akori nla jẹ iyara, ṣiṣatunṣe, ati yiya awọn iwoye lati diẹ, awọn fọto messier.
Real-World imuse
Yipada fidio foonu ti ohun kan sinu wiwo 3D o le yipo fun rira lori ayelujara
Atunse awọn ipo gidi bi awọn ẹhin ojulowo fọtoyiya fun fiimu ati awọn ipa wiwo
Ṣiṣe awọn iwoye 3D immersive fun foju ati awọn iriri otito ti a pọ si
Digitally toju awọn aaye ohun-ini aṣa ati awọn ohun-ọṣọ lati awọn eto fọto
Awọn ewu & Awọn ọna iṣọ
Awọn ẹtọ aworan ati igbanilaaye le di awọn eewu labẹ ofin ti o ba jẹ afihan.
Iṣe awoṣe le yatọ kọja ina, awọn ẹda eniyan, ati awọn agbegbe.
Awọn idaniloju eke le ma ṣe akiyesi ayafi ti a ba ṣe abojuto awọn ala igbẹkẹle.
Ilana Ilana imuse
Ṣetumo awọn ibeere gbigba fun pipe, iranti, ati awọn idiyele aṣiṣe.
Ṣe idanwo pẹlu data ti o baamu awọn ipo iṣelọpọ gidi.
Ṣafikun atunyẹwo eniyan fun igbẹkẹle kekere tabi awọn asọtẹlẹ ipa-giga.
Tọpinpin awoṣe ki o ṣe tunṣe lẹhin kamẹra tabi awọn ayipada datasetto.
Tesiwaju Ṣiṣawari
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Itọsọna atẹle
Mip-NeRF ati Awọn aaye Radiance Anti-Aliased
Awọn ibeere ti a beere nigbagbogbo
What is Neural Radiance Fields?
Awọn aaye Radiance Neural (NeRF) tun ṣe iwoye 3D ni kikun lati ọwọ diẹ ti awọn fọto lasan, jẹ ki o fo kamẹra si awọn aaye iwo-tuntun. O ṣe atunṣe gbigba 3D bi ikẹkọ nẹtiwọọki nkankikan kekere ju kikọ apapo kan.
Kini ibi-afẹde akọkọ ti aaye Radiance Neural kan?
NeRF ṣe agbero aṣoju 3D kan lati inu awọn aworan ti o ṣeto, ti o mu ki o ṣe afihan aworan gidi lati awọn oju iwo kii ṣe ni awọn fọto atilẹba.
Kini iṣejade nẹtiwọọki nkankikan NeRF fun titẹ sii kan?
Fun ipo 3D ati itọsọna wiwo, MLP da awọ pada ati iwuwo (opacity) ni aaye yẹn.
Kini awọn igbewọle si iṣẹ 5D NeRF?
NeRF gba ipo 3D kan (x, y, z) ati itọsọna wiwo (awọn igun meji), apapọ awọn igbewọle marun.
Bawo ni NeRF ṣe tan awọn abajade nẹtiwọọki rẹ sinu awọ piksẹli ikẹhin kan?
Awọn ayẹwo NeRF n tọka lẹgbẹẹ ray kọọkan ati ṣepọ awọ wọn ni iwuwo nipasẹ iwuwo, idogba iwọn didun kilasika ṣe iyatọ.
Kini idi ti NeRF ṣe lo fifi koodu ipo lori awọn ipoidojuko igbewọle?
Awọn ipoidojuko aworan atọka nipasẹ awọn iṣẹ iṣan-igbohunsafẹfẹ giga / awọn iṣẹ cosine jẹ ki MLP ṣe aṣoju alaye to dara dipo awọn abajade blurry.