Plenoxels uye Voxel Radiance Minda
Plenoxels yakaratidza kuti unogona kuvaka patsva chiitiko che3D neNeRF-mhando yemhedzisiro pasina neural network zvachose - ingori gidhi remavoxels anochengeta ruvara uye density.
Pfupiso
The result trains roughly 100x faster than the original NeRF while matching its visual quality.
Kudzika Kwakadzika
NeRF inowana photorealism asi inononoka nekuti sampuli yega yega inoda kumberi kupfuura nepakati neural network, uye kudzidziswa kunogona kutora maawa kana mazuva. Plenoxels (Sara Fridovich-Keil, Alex Yu et al., 2022) akabvunza mubvunzo unotsamwisa: network yacho inotodiwa here? Mhinduro yavo yakanga iri kwete. Ivo vanomiririra chiitiko senge sparse 3D voxel grid. Imwe neimwe inogarwa voxel inochengeta imwechete opacity kukosha pamwe ne spherical harmonic coefficients iyo encode-inotsamira ruvara. Kupa pixel, sisitimu yacho inopindirana nekatatu hunhu uhwu pamwe nemwaranzi uye inoabatanidza neyakajairwa vhoriyamu render. Nekuti hapana network, chinhu chose chinogadziridzwa zvakananga ne gradient kudzika pane voxel kukosha, yakajairwa kutsvedzerera. Mhedzisiro yemusoro: inofananidzwa mhando neNeRF, yakadzidziswa mumaminitsi paGPU imwechete.
Technical Insight
Maonero-anotsamira ruvara ndiyo yakangwara chikamu. Panzvimbo penetiweki inoburitsa RGB pakona yekutarisa, voxel yega yega inochengeta diki seti yespherical harmonic (SH) coefficients pachiteshi chemavara. Kuongorora iyo SH hwaro munzira yeray inovakazve kuti ruvara rweiyo poindi inochinja sei nemaonero - kutora specular maratidziro uye maratidziro. Opacity inzira-yakazvimirira. Differentiable trilinear interpolation plus volume rendering inoita kuti yega yega voxel idzidziswe zvakananga, saka optimization yakatwasuka, isina network-isina-squares-style fit.
Strategic Impact
Kumhanya uye chiyero
Visual AI inogona kuita otomatiki yekuongorora, yekuona, uye yekumaka mabasa pachiyero.
Vaka sarudzo
Zvikwata zvekugadzira zvinogona prototype pfungwa nekukurumidza nekudzokororwa kwemaoko mashoma.
Team uye workflow
Mashandisirwo anogona kushandisa masaini emifananidzo nemavhidhiyo ayo aimbove akaoma kugadzirisa.
Ramangwana rePlenoxels uye Voxel Radiance Minda
Plenoxels yakaratidza kuti chinomiririra, kwete neural network, chinotyaira hunhu hweNeRF - kuwanikwa kwakagadzirisa munda. Yakafuridzira nzira dzakajeka uye dzakasanganiswa senge Instant-NGP's hashi grids uye, pakupedzisira, 3D Gaussian Splatting, iyo ikozvino inotonga chaiyo-nguva yekupenya kwekupa. Tarisira kuenderera mberi kwekufamba kwakananga kwakajeka, GPU-inoshamwaridzika primitives inodzidzisa mumasekonzi uye inopa munguva chaiyo, ine neural network inoshandiswa zvakasarudzwa kwete seyepakati nzvimbo chitoro.
Real-World Implementation
Kurumidza kuvakazve chinhu chakabatwa kuita 3D asset mumaminitsi e-commerce kana museum digitization, panzvimbo yemaawa ekumirira.
Kukurumidza prototyping yenovel-view synthesis pane imwechete mutengi GPU yekutsvaga uye dzidzo.
Kugadzira zvinogadzirika, zvakajeka voxel zvimiro izvo maartist anogona kunyatso ongorora uye kuchekerera, kusiyana neopaque network uremu.
Kushanda semuenzaniso wekudzidzisa kuti chiitiko chinomiririra, kwete kudzidza kwakadzama, ndiko kunoburitsa mhedzisiro yephotorealistic.
Njodzi & Guardrails
Kodzero dzemifananidzo uye kubvumirwa kunogona kuve njodzi dzepamutemo kana provenance isina kujeka.
Kuita kwemuenzaniso kunogona kusiyanisa kupenya, huwandu hwevanhu, uye nharaunda.
Manyepo enhema anogona kusacherechedzwa kunze kwekunge zvikumbaridzo zvekuvimba zvikatariswa.
Implementation Roadmap
Tsanangura maitiro ekugamuchirwa echokwadi, kurangarira, uye mutengo wekukanganisa.
Edzai nedata rinoenderana nemamiriro chaiwo ekugadzira.
Wedzera ongororo yemunhu kune yakaderera-kusavimbika kana yakakwirira-inokanganisa kufanotaura.
Tevera modhi kudonha uye simbisa mushure mekuchinja kwekamera kana dataset.
Ramba Uchiongorora
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Gaidhi rinotevera
Neural Radiance Fields
Mibvunzo inowanzo bvunzwa
What is Plenoxels and Voxel Radiance Fields?
Plenoxels yakaratidza kuti unogona kuvaka patsva chiitiko che3D neNeRF-mhando yemhedzisiro pasina neural network zvachose - ingori gidhi remavoxels anochengeta ruvara uye density. Mhedzisiro yacho inodzidzisa ingangoita 100x nekukurumidza kupfuura iyo yekutanga NeRF uku ichifananidza hunhu hwayo hwekuona.
Ndeipi inonyanya kushamisa dhizaini sarudzo muPlenoxels ichienzaniswa neNeRF?
Plenoxels inochengetedza chiitiko chakananga mugedhi yevoxel uye inokwidziridza izvo zvakakosha, pasina neural network mupombi.
Ko yega yega inogarwa voxel muPlenoxels chitoro kuti itore-inotsamira ruvara?
Imwe neimwe voxel inobata opacity pamwe ne spherical harmonic coefficients paruvara chiteshi, iyo inoisa kuti ruvara runochinja sei nekutarisa kutungamira.
Zvine kukurumidza kukurumidza kudzidziswa kwePlenoxels zvichienzaniswa neNeRF yekutanga?
Nekubvisa per-sample network inopfuura, Plenoxels inodzidziswa pahurongwa hwe100 times nekukurumidza, ichipedzisa mumaminetsi.
Kokoshero dzinotorwa sei kubva kune voxel grid pamwe nemwaranzi?
Plenoxels inoshandisa inosiyanisa trilinear kududzira kuverenga ruvara uye opacity zvakanaka pakati pevoxel nzvimbo.
Ndeipi mhedziso yakakura iyo Plenoxels yakaratidza kumunda?
Nekuenzanisa mhando yeNeRF isina network, Plenoxels yakaratidza kumiririra uye optimization, kwete iyo MLP, ndiyo yaikonzeresa mhedzisiro.