Ayyukan Nisa Sa hannu
Ayyukan nesa da aka sanya hannu (SDF) yana bayyana sifar 3D ta gaya muku, ga kowane wuri a sararin samaniya, nisansa zuwa saman mafi kusa, tare da alamar da ke nuna ko kuna ciki ko waje.
Dubawa
This compact, continuous representation powers modern 3D reconstruction, rendering, and shape generation.
Zurfafa nutsewa
Maimakon adana saman a matsayin raga na triangles ko gajimare na maki, SDF yana adana aiki: ciyarwa a cikin kowane haɗin gwiwar 3D kuma yana mayar da nisa zuwa saman mafi kusa, mara kyau a cikin abu kuma tabbatacce a waje. Fuskar kanta ita ce saita matakin sifili, inda nisa yayi daidai da sifili. SDFs suna da santsi kuma suna ci gaba, don haka suna wakiltar sifofi a ingantacciyar ƙuduri mara iyaka kuma suna yin ayyukan geometric masu kyau: haɗa sifofi biyu, kashe saman ƙasa, ko lissafin al'ada duk sun zama lissafi mai sauƙi. A cikin AI, hanyoyin sadarwa na jijiyoyi kamar DeepSDF suna koyon SDF don nau'ikan abubuwa gabaɗaya, suna ɓoye kowane siffa azaman ƙaramin lambar sirri. Suna ƙarfafa tsarin ma'anar jijiyoyi da ingantaccen sake gina ƙasa kamar NeuS da VolSDF.
Fahimtar Fasaha
SDF na gaskiya yana gamsar da ma'aunin eikonal, ma'ana gradient ɗinsa yana da girma ɗaya ko'ina, kuma gradient ɗin yana nuna daidai daidai da yanayin al'ada. Rendering yana amfani da binciken sararin samaniya: daga asalin ray, zaku iya ci gaba cikin aminci ta hanyar ƙimar SDF (nisa zuwa saman mafi kusa) ba tare da wuce gona da iri ba, maimaitawa har sai kun ci karo da sifiri. SDFs na jijiyoyi suna maye gurbin grid bincike tare da ƙaramar hanyar sadarwa tare da latent code, koyan ci gaba da siffofi da cike giɓi daga bayanan ɓangarori.
Dabarun Tasiri
Gudu da sikelin
Kayayyakin AI na iya sarrafa aiki da bincike, ganowa, da ayyuka masu alama a sikelin.
Gina zaɓuɓɓuka
Ƙungiyoyin ƙirƙira za su iya samar da ra'ayoyi cikin sauri tare da ƙarancin bita da hannu.
Ƙungiya da aikin aiki
Ayyuka na iya amfani da siginar hoto da bidiyo waɗanda a baya suke da wahalar aiwatarwa.
Makomar Ayyukan Nisa Sa hannu
SDFs suna ƙara ƙashin bayan babban aminci na 3D sake ginawa daga hotuna da bidiyo, galibi ana haɗa su tare ko fafatawa da Gaussian splatting don saurin gudu. Hanyoyin neural-SDF masu haɗaka suna samun sauri don horarwa da bayarwa, suna ba da damar daidaitawa, kadarorin 3D masu haske don wasanni, fim, da AR. Yi tsammanin ingantacciyar sarrafa sigar sirara, buɗaɗɗen filaye, da fage masu ƙarfi, da ƙirar ƙira waɗanda ke samar da tsaftataccen lissafi mai tsaftar ruwa kai tsaye azaman SDFs don ƙira, kwaikwayo, da bugu na 3D.
Aiwatar da Gaskiyar Duniya
Nunin zane-zane na ainihi da wasanni suna amfani da SDFs tare da gano wuri don yin santsi, cikakkun cikakkun bayanai da inuwa masu laushi.
Hanyoyin sake gina jijiyoyi (NeuS, VolSDF) suna dawo da ragamar abubuwa da al'amuran 3D mara ruwa daga jerin hotuna.
Robotics da CAD suna amfani da SDFs don saurin duban karo da haɗuwa da sassauƙa yayin ƙirar siffa.
Samfuran ƙira kamar DeepSDF suna ɓoye nau'ikan nau'ikan abubuwa don haka sabbin, cikakkun sifofi za'a iya ɗauka ko kammala su daga sikanin ɓangarori.
Hatsari & Tsare-tsare
Haƙƙoƙin hoto da yarda na iya zama haxarin doka idan ba a fayyace ba.
Ayyukan samfuri na iya bambanta a ko'ina cikin haske, ƙididdiga, da mahalli.
Ƙarya tabbataccen ƙila ba za a iya lura da shi ba sai dai idan an kula da ƙofofin amincewa.
Taswirar Hanya
Ƙayyade ma'auni na karɓa don daidaito, tunowa, da farashi na kuskure.
Gwada tare da bayanan da suka dace da ainihin yanayin samarwa.
Ƙara bita na ɗan adam don ƙarancin amincewa ko tsinkaya mai tasiri.
Bi diddigin ƙirar ƙira kuma sake ingantawa bayan canje-canjen kamara ko saitin bayanai.
Ci gaba da Bincike
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Jagora na gaba
Nisa Farko na Fréchet
Tambayoyin da ake yawan yi
What is Signed Distance Functions?
Ayyukan nesa da aka sanya hannu (SDF) yana bayyana sifar 3D ta gaya muku, ga kowane wuri a sararin samaniya, nisansa zuwa saman mafi kusa, tare da alamar da ke nuna ko kuna ciki ko waje. Wannan ƙarami, ci gaba da wakilci yana ba da ikon sake gina 3D na zamani, ma'ana, da tsara surar su.
Menene aikin nisa da aka sa hannu ya dawo don abin da aka bayar na 3D?
SDF taswirar kowane batu zuwa nisa daga saman mafi kusa; alamar tana nuna ko batu yana ciki (mara kyau) ko a waje (tabbatacce).
Ina ainihin saman SDF yake?
Filaye shine saitin maki inda nisan da aka sanya hannu ya kasance daidai sifili, iyaka tsakanin ciki da waje.
Wace kadara ce ingantaccen gradient SDF ke gamsarwa?
Ingantacciyar SDF tana yin biyayya ga ma'aunin eikonal, don haka gradient ɗinsa yana da tsayin raka'a ko'ina kuma yana nuni tare da saman al'ada.
Ta yaya nemo yanki ke amfani da ƙimar SDF?
Saboda SDF yana ba da nisa zuwa saman mafi kusa, ray na iya ci gaba cikin aminci ta wannan adadin ba tare da wuce gona da iri ba, yana maimaitawa har sai ya kai sifili.
Menene DeepSDF ke amfani da shi don wakiltar takamaiman siffa?
DeepSDF yana ƙunshe da kowane siffa azaman ƙaramin sikelin sikeli wanda ke ba da damar hanyar sadarwa tana tsinkayar SDF, tana ba da ƙarfi, siffofi masu ci gaba.