Tsarin daga Motsi
Tsari daga Motion (SfM) yana sake gina juzu'i na 3D da matsayi na kamara daga saitin hotuna na 2D masu jujjuyawa da aka ɗauka daga ra'ayoyi daban-daban.
Dubawa
It is the backbone of 3D mapping, photogrammetry, and modern reconstruction pipelines.
Zurfafa nutsewa
SfM yana warware abubuwan da ba a sani ba guda biyu a lokaci ɗaya: inda kowace kyamara ta kasance lokacin da ta ɗauki hoto, da kuma inda ake samun maki 3D a duniya. Yana farawa ta hanyar gano abubuwan da suka bambanta (ta amfani da na'urori kamar SIFT) a cikin kowane hoto, sannan daidaita ma'auni na zahiri guda ɗaya a cikin hotuna da yawa. Yin amfani da waɗannan wasiƙun da kuma lissafin yadda maki 3D ke aiwatarwa akan hotuna na 2D, tsarin yana ƙididdige matsayin kyamarar dangi ta hanyar geometry na epipolar. Ana karkatar da maki zuwa gajimare na 3D maras nauyi, kuma haɓakawa na duniya da ake kira gyare-gyaren bundle yana tace duk kyamarori da maki tare don rage girman kuskuren ƙira. Sakamakon haka shine gajimare mara iyaka da madaidaitan matsayi na kamara - mahimmin ginshiƙi wanda hanyoyin sake ginawa suka ginu a kai.
Fahimtar Fasaha
Zuciyar ilimin lissafin SfM shine daidaitawar ɗaure: babban haɓaka mafi ƙanƙantar murabba'ai wanda ba a kan layi ba wanda ke daidaita kowane matsayi da abubuwan da ke cikin kyamara a lokaci guda da kowane maki na 3D don haka hasashensu ya fi dacewa da yanayin fasalin 2D da aka lura. Yana rage girman 'kuskuren ƙididdigewa' - nisan pixel tsakanin inda aya ta sauka a cikin hoton da kuma inda kiyasin 3D na yanzu ya ce ya kamata ya sauka - yawanci ta hanyar Levenberg-Marquardt.
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 Tsarin Daga Motsi
SfM yana ƙara haɗawa tare da zurfin koyo: abubuwan gano abubuwan da aka koya da masu daidaitawa (kamar SuperPoint da SuperGlue) suna ɗaukar hotuna marasa rubutu ko maimaitawa waɗanda SIFT na yau da kullun ke gwagwarmaya dasu. Hakanan yana ciyar da wakilcin yanayin jijiyoyi kamar NeRF da Gaussian Splatting, waɗanda ke buƙatar kyamarar ta samar da SfM. Yi tsammanin sauri, ƙarin bututun ƙarshen-zuwa-ƙarshe, SfM na ainihi akan wayoyi don AR, da ƙarin haɗin gwiwa tare da SLAM don yin taswira kai tsaye a cikin injiniyoyin mutum-mutumi da kewayawa mai cin gashin kai.
Aiwatar da Gaskiyar Duniya
Drone photogrammetry wanda ke juya saitin hoto na iska zuwa filin 3D da ƙirar gini don bincike.
Maido da kamara yana tsayawa zuwa bootstrap NeRF da Gaussian Splatting yanayin sake ginawa
A dijital adana wuraren al'adun gargajiya da mutummutumai azaman ƙirar 3D daga tarin hotunan yawon bude ido
Sake gina laifuffuka ko wuraren haɗari a cikin 3D daga hotunan masu bincike don nazarin shari'a
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
Free newsletter
Get the daily AI briefing
Three verified AI stories every weekday morning, written in plain English. Free forever, no ads.
One email each weekday. Unsubscribe in one click. We never sell or share your address.
Test yourself
Take the Structure from Motion quiz
Instant feedback on every answer, and a shareable certificate with a verifiable ID once you pass a course.
Support free AI education. AI Understanding is a 501(c)(3) nonprofit — no ads, no paywall, ever. Make a donation
Jagora na gaba
AnimateDiff Motion Generation
Tambayoyin da ake yawan yi
What is Structure from Motion?
Tsari daga Motion (SfM) yana sake gina juzu'i na 3D da matsayi na kamara daga saitin hotuna na 2D masu jujjuyawa da aka ɗauka daga ra'ayoyi daban-daban. Ita ce kashin bayan taswirar 3D, daukar hoto, da bututun sake ginawa na zamani.
Wadanne abubuwa guda biyu ne Structure daga Motion yayi kiyasin lokaci guda?
SfM tare yana magance yanayin 3D geometry da kuma inda kowace kyamara ta kasance lokacin da ta ɗauki kowane hoto.
Menene aikin daidaita fasali a cikin SfM?
Daidaita abubuwan da aka gano (misali, maɓalli na SIFT) a cikin hotuna yana ba da wasiƙun da ake buƙata don tantance lissafi.
Menene daidaitawar damfara ke inganta?
Gyaran dam shine gyare-gyaren ƙananan murabba'ai marasa kan layi na duniya wanda ke rage tazarar pixel tsakanin abubuwan gani da abubuwan da aka tsara.
Wane irin fitarwa na 3D ne SfM yawanci ke samarwa kai tsaye?
SfM yana samar da ɗimbin saiti na maki triangular da matsayi na kamara; Ana buƙatar hanyoyin da yawa don cikakkun saman.
Wanne ra'ayi na geometric ya danganta madaidaicin maki tsakanin ra'ayoyin kamara biyu?
Epipolar geometry yana da ƙuntatawa inda wurin da aka gani a hoto ɗaya zai iya bayyana a wani, yana ba da damar ƙimantawa.