Flow optik
Flow optik dafay xayma ni pixel bu nekk di toxalee ci diggante kadre wideo yu toppalante, muy defar kàrt bu dëgër bu vecteur yiy toxu.
Résumé
It is how machines perceive movement, speed, and direction in video.
Plongeur bu xóot
Flow optik dafay jox pixel bu nekk benn fett bu ndaw buy yëngu, di fësal fimu wara joge ci benn kadre dem ci beneen bi. Pexe yu yàgg yaa ngi aju ci xalaatu 'leer gu sax' - benn poñ dafay wéy di am leeraay bi muy toxal - boole ci ay tënk yu nooy, ni ci algorithm yu Lucas-Kanade (bu néew) ak Horn-Schunck (dense). Yii dañuy dox bu baax ci yëngu yu ndaw, yu woyof waaye dañuy xeex ak yëngu yu gaaw, occlusions, ak gox yu yaatu yu amul texture. Jàngat bu xóot bi dafa soppi barab bi: reso yu melni FlowNet, PWC-Net, rawatina RAFT jàng méngale màndarga yi ci kaadar yi ak setal barabu flow bi. Sorti bi dafay dawal xam-xam wideo fépp fu laaj bi nekkul rek 'lan moo nekk ci kaadar bi?' waaye 'nan lay doxee?'
Gis-gis xarala
RAFT, ap jego bu am solo, tabax na 4D 'volume coût' buy wane ni pixel bu nekk ci kaadar benn méngoo ak pixel bu nekk ci kaadar ñaareel, ba noppi jëfandikoo operatëru yeesal buy baax (GRU) ngir setal xayma ci jéego yu ndaw yu bari - lu melni nudging fett yu bari ci match yu gëna baax. Bii setal buy baamtu, du benn xalaat bu rëy, dafay joxe flow bu ñaw, bu jaar yoon ba ci toxal yu yaatu ak ay detay yu rafet, te dafay yamale bu baax ci seen yu bari.
njeextalu pexe
Gaawaay ak yaatuwaay
Visual IA mën na otomatise saytu, gis ak etiketu liggéey ci eskaal.
Tabax tànneef
Ekipu kreatif yi mën nañu defar konsept yu gëna gaaw te duñu def lu bari ci loxo.
Ekip ak def liggéey
Liggéeyukaay yi mën nañu jëfandikoo siñaal nataal wala wideo yu jafewoon lool ci liggéey.
Ëlëgu Flow Optik
Flow optik mingi jubal ci jamono dëgg, xayma resolusioŋ bu kawe ci aparey yu yam yi, boole bu gëna dëgër ak xóotaayu ak flow seen 3D, ak tàggat boppam buy jàngee ci wideo bu ñor te amul etiketu dëgg bu seer. Ginaaw sistem yiy demal seen bopp ak robot yi dañuy laaj xam-xam bu gëna riis ci yëngu, xaar flow bi boole ak topp mbir ak wax luy waaja am suko defee masin yi duñu gis yëngu yi am waaye ñu xam fu mbir yi di dem ëlëg, ba ci occlusions ak yëngu kamera yu gaaw.
Doxal ci àdduna dëgg
Dakkal wideo ci telefon yi ak kamera yiy fomm tànki loxo yuy yëngu
Interpolation kadre biy defar diggante kadre yi ngir defar wideo bi mu gëna nooy wala mu daw ci mouvement bu yeex
Ndimbalu dawalkat ak oto yuy demal seen bopp di xayma gaawaay ak yoon wi oto yi ci wetam ak doxkat yi di jaar
Kodeku kompresioŋ wideo di wax luy waaja xew ci diggante kaadar yi ngir denc wideo bi ci anam wu gëna xéewale
Risk yi ak balustrade yi
Yelleefi nataal ak nangu mën na nekk risku yoon sudee fi ñu bawoo leerul.
Performance model bi mën na wuute ci leeraay bi, demographie bi ak environmaa bi.
Njuumteg positive yi mën nañu dem te kenn duko seetlu fileek xool wuñu buntu wóolu sa bopp.
Roadmap ngir samp gi
Mandargal kritërium nangug njub, woowaat ak njëgu njuumte.
Saytu ak done yu méngoo ak anam yi ñuy liggéeyee dëgg.
Yokk jàngat nit ngir xam fu wóorul dara wala am njeexital yu rëy.
Toppal model drift bi nga baaxal ko ginaaw bi kamera bi wala done yi soppeekoo.
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Gis bi ci topp
méngoo
Laaj yi ñuy faral di laaj
What is Optical Flow?
Flow optik dafay xayma ni pixel bu nekk di toxalee ci diggante kadre wideo yu toppalante, muy defar kàrt bu dëgër bu vecteur yiy toxu. Mooy anam wi masin yi di gisee yëngu, gaawaay ak yoon wi ci biir wideo.
Lan mooy flow optik bi?
Flow optik dafay defar ay vecteur mouvement yuy wane ni pixel bu nekk di joge ci benn kadre dem ci beneen bi.
Lan mooy 'constancy lumière' bi ñuy jëfandikoo ci flow optik bu yàgg bi?
Pexe yu yàgg yaa ngi xalaat ni leeralu poñ physique bi du soppeeku lumuy toxu, loolu mooy tax ñu mëna ko méngale ci diggante kaadar yi.
Ban xeetu jàngat bu xóot bu bees lañu xamee ci setal flow iteratif ci jëfandikoo volume coût ak yeesali dellu ginaaw?
RAFT dafa tabax benn volume coût 4D ba noppi jëfandikoo operatër buy baaxoo ngir setal flow ci jéego yu ndaw yu bari, ba noppi am njubte bu mujj.
Lan moo waral pexe optik yu yàgg yi di am jafe-jafe ak yëngu yu yaatu te gaaw?
Pexe yiñ tabax ci kaw xalaat yu ndaw yi dañuy ñàkk yoon su pixel bi tëb fu sori ci diggante kaadar yi, di jur njuumte.
Ban aplikaasioŋ moo sukkandiko ci xayma yëngu bi ci diggante kaadar yi?
Interpolaasioŋ kadre dafay boole kadre yu digg yi ci jëfandikoo mouvement pixel buñ xayma, defar wideo bu gëna nooy wala bu yeex.