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Sichinthu chatsopano kukhala ndi zithunzi ndi makanema abodza. Kuyambira kugwiritsidwa ntchito kwa intaneti kwafala, anthu akhala akupanga zabodza zomwe zimafuna kupusitsa kapena kuseketsa kuyambira pomwe pakhala zithunzi ndi makanema.
Komabe, pali mtundu watsopano wa zabodza zopangidwa ndi makina zomwe tsiku lina zingapangitse kuti zikhale zovuta kwa ife kusiyanitsa zenizeni ndi zopeka.
Mabodzawa amasiyana ndi zithunzi zosavuta zomwe zimapangidwa ndi mapulogalamu osintha monga Photoshop kapena makanema opangidwa mwanzeru akale.
Deepfakes ndi chitsanzo chodziwika bwino cha "synthetic media" - zithunzi, mawu, ndi makanema omwe amawoneka kuti adapangidwa pogwiritsa ntchito njira wamba koma adapangidwadi pogwiritsa ntchito mapulogalamu apamwamba kwambiri.
Deepfakes akhalapo kwa kanthawi, ndipo pamene ntchito yawo yotchuka kwambiri komabe yakhala kuika mitu ya anthu otchuka pa matupi a zisudzo mu mafilimu olaula, ali ndi mphamvu yotulutsa zithunzi zokhutiritsa za aliyense akuchita chirichonse, kulikonse.
Mu positi iyi, tikhala tikuwona Deepfakes, momwe imagwirira ntchito, momwe mungapangire nokha, ndi zina zambiri.
Ndiye, DeepFake ndi chiyani?
A deepfake - kuphatikiza kwa mawu ozama kuphunzira ndi zabodza - ndi chidutswa cha zopangira media momwe kufanana kwa munthu wina kumagwiritsidwa ntchito m'malo mwa munthu pa chithunzi kapena kanema yomwe ilipo kale.
Deepfakes amagwiritsa ntchito makina apamwamba kwambiri ophunzirira komanso nzeru zopanga kupanga kuti asinthe ndikupanga zidziwitso zowoneka ndi zomvera zomwe zimatha chinyengo.
Njira zophunzirira mozama monga ma autoencoder ndi ma generative adversarial network ndi njira yayikulu yopangira deepfake production (GAN).
Zitsanzozi zimagwiritsidwa ntchito pofufuza momwe nkhope ya munthu ikumvera komanso mayendedwe ake komanso kupanga zithunzi za nkhope za anthu ena omwe akuwonetsa mawonekedwe ndi mayendedwe ofanana.
Kugwiritsa ntchito mabodza ozama m'mavidiyo olaula otchuka, nkhani zabodza, zabodza, komanso chinyengo chazachuma kwachititsa chidwi kwambiri. Makampani onse ndi boma ayankha poyesa kuwapeza ndikuchepetsa kugwiritsidwa ntchito kwawo.
Choyamba Order Motion Model
Poyesa kupanga zabodza zakuya m'mbuyomu, vuto linali loti timafunikira chidziwitso chowonjezera, kapena zoyambira, kuti njirazi zigwire ntchito.
Monga fanizo, zolembera kumaso ndizofunikira ngati tikufuna kutsatira mutu. Kuyerekeza kwapama kunali kofunikira ngati tikufuna kupanga mapu akuyenda kwa thupi lonse.
Izi zinasintha pamsonkhano wa NeurIPS chaka chatha pamene gulu lofufuza kuchokera ku yunivesite ya Toronto limapereka ntchito yawo, "Choyamba Order Motion Model ya Zithunzi Makanema. "
Palibe chidziwitso china cha makanema ojambula panjira iyi. Kuonjezera apo, chitsanzochi chikaphunzitsidwa, chikhoza kugwiritsidwa ntchito kusamutsa maphunziro ndikugwiritsidwa ntchito ku chinthu chilichonse chomwe chikugwera pansi pa gulu lomwelo.
Tiyeni tione ntchito njira imeneyi patsogolo pang'ono. Motion Extraction ndi Generation zimapanga theka loyamba la ndondomeko yonseyi. Mavidiyo oyendetsa galimoto ndi zithunzi zoyambira zimagwiritsidwa ntchito ngati zolowetsa.
Kuti muchotse mawonekedwe oyambira, omwe amakhala ndi mfundo zazikuluzikulu zochepa komanso masinthidwe amtundu wamba, chowongolera chowongolera chimagwiritsa ntchito autoencoder kuzindikira mfundo zazikulu.
Kuti apange mawonekedwe owoneka bwino komanso mapu otsekeka okhala ndi netiweki yosunthika, amagwiritsidwa ntchito limodzi ndi kanema woyendetsa. Jeneretayo imapanga chithunzi chandamale pogwiritsa ntchito zotuluka kuchokera pa netiweki yowundana komanso chithunzi choyambira.
Kumbali zonse, ntchitoyi imagwira ntchito bwino kuposa momwe zimakhalira. Lilinso ndi zinthu zomwe zitsanzo zina zilibe. Zimagwira ntchito pamitundu ingapo ya zithunzi, kotero mutha kuziyika pazithunzi za nkhope, thupi, zojambula, ndi zina zambiri, zomwe ndizabwino kwambiri.
Mipata yambiri yatsopano imapangidwa ndi izi. Chinthu chinanso chovuta kwambiri pamalingaliro athu ndikuti tsopano chimakupatsani mwayi wopanga ma Deepfakes apamwamba kwambiri pogwiritsa ntchito chithunzi chimodzi chokha cha zomwe mukufuna, zofanana ndi momwe timachitira. YOLO kwa chinthu kuzindikira.
Njira Yopangira Deepfake Model
Njira zitatu ndizofunikira pakupanga kozama: kuchotsa, kuphunzitsa, ndi kulenga. Mfundo zazikuluzikulu za gawo lililonse la magawowa ndi momwe zikugwirizanirana ndi ndondomeko yonse zidzafotokozedwa m'gawoli.
Kuchotsa
Deepfakes amagwiritsa ntchito maukonde azama neural kuti asinthe nkhope ndipo amafunikira zambiri (zithunzi) kuti azigwira ntchito moyenera komanso motsimikizika. Njira yochotsera ndi gawo lomwe mafelemu onse kuchokera pamavidiyo amachotsedwa, nkhope zimazindikiridwa, ndipo nkhopezo zimagwirizanitsidwa kuti ziwonjezeke.
Training
Mu gawo la maphunziro, a neural network akhoza kusintha nkhope imodzi kukhala ina. Kutengera ndi kukula kwa zoyeserera komanso zida zophunzitsira, maphunzirowo amatha kutenga maola angapo kapena masiku.
Maphunzirowa amayenera kumalizidwa kamodzi, monganso maphunziro ena ambiri a neural network. Pambuyo pa maphunziro, chitsanzocho chitha kusintha nkhope kuchoka pa munthu A kupita ku munthu B.
Chilengedwe
Chitsanzocho chikaphunzitsidwa, deepfake ikhoza kupangidwa. Mafelemu amatengedwa mu kanema kenako amalumikizidwa ku nkhope zonse. Neural network yophunzitsidwa imagwiritsidwa ntchito kusintha chimango chilichonse.
Nkhope yosinthidwa iyenera kuphatikizidwa ndi chimango choyambirira ngati sitepe yomaliza.
Kupanga Deepfake Detection Model
Kuyika ndi Kujambula GitHub Repo
Kutha kugwiritsa ntchito ma GPU a Google kwaulere mukamagwira ntchito ku Colab ndikopindulitsa kuphunzira kwakukulu. Ubwino wowonjezera ndikutha kuyika Google Drive pamakina amtambo (VM).
Ndi mwayi wosavuta kuzinthu zake zonse, wogwiritsa ntchito amathandizidwa. Pulogalamu yofunikira kuti muyike Google Drive kumakina omwe ali mumtambo ipezeka mu gawoli.
Kulowetsa Ma module
Tsopano, tidzalowetsa ma modules onse ofunikira.
Kukonzekera chitsanzo
Tigwiritsa ntchito chitsanzo chomwe chimaphatikiza chithunzi cha Putin (chithunzi cha gwero) ndi kanema wa Obama. Zotsatira zake ndi kanema wa a Putin akuyankhula ndikugwedeza ndi mawonekedwe ankhope omwe Obama adagwiritsa ntchito poyendetsa.
Asanayambe kuwonetsa zotsatira za chitsanzocho, zofalitsa zidzatulutsidwa ndipo ntchito zidzalengezedwa. Kenako ma checkpoint adzaikidwa ndipo chitsanzocho chidzapangidwa. Mukapanga zabodza zakuya, masitayelo awiri osiyanasiyana amakanema adzawonetsedwa.
Putin amasangalatsidwa ndi mayendedwe a Obama pogwiritsa ntchito kusuntha kofunikira. Momwe maonekedwe a nkhope ya Obama ndi thupi lake zimasonyezedwera mokongola komanso momveka bwino kwa Putin m'mavidiyo ake ndizodabwitsa.
Pali zolakwika zochepa zazing'ono, makamaka Obama akakweza nsidze ndikuphethira. Mawu awa sanafotokozedwe ndendende mu mafelemu a Putin.
Popanda mbiri yakuya, filimu ya Putin ingawoneke ngati yodalirika komanso yowona ngati ingawonedwe pa TV kapena chikhalidwe TV.
Kupanga zitsanzo
Tsopano, tikhala tikugwiritsa ntchito malo oyang'anira ophunzitsidwa kale kuti tipange mtundu wathunthu.
Kuzindikira kozama
Kusamutsidwa kwa mfundo zazikuluzikulu kumagwiritsidwa ntchito kuwongolera zinthu zomwe zili mu cell yomwe ili pansipa. Selo lotsatira limagwiritsa ntchito kugwirizanitsa kwathunthu m'malo mwake, koma magawo onse azinthu adzatengedwa pavidiyo yoyendetsa motere.
Kupititsa patsogolo zotuluka pogwiritsa ntchito ma coordinates athunthu
Mudzatha kupanga chidziwitso chozama motere.
Kodi Zowopsa za Deepfake Technology Ndi Chiyani?
Makanema a Deepfake tsopano ndi osangalatsa komanso osangalatsa kuwonera chifukwa chazatsopano zawo. Komabe, pali chiwopsezo chomwe chingakhale chosalamulirika chagona pansi paukadaulo wowoneka ngati woseketsa.
Zidzakhaladi zovuta kusiyanitsa mavidiyo abodza ndi enieni monga ukadaulo wakuya akupitiriza kupita patsogolo. Kwa anthu otchuka komanso otchuka, makamaka izi zitha kukhala ndi zotsatira zoyipa. Deepfakes omwe ali oipa mwadala amatha kuwonongeratu ntchito ndi miyoyo.
Izi zitha kugwiritsidwa ntchito ndi wina yemwe ali ndi cholinga choyipa chopatsira ena ndikudyera masuku pamutu anzawo, achibale, ndi anzawo akuntchito. Amathanso kuyambitsa mikangano padziko lonse lapansi ngakhalenso nkhondo pogwiritsa ntchito mafilimu achinyengo a atsogoleri akunja.
Kutsiliza
Mwachidule, tili mu nthawi yodabwitsa komanso malo osazolowereka. Kuposa kale lonse, ndikosavuta kupanga nkhani zabodza ndi mafilimu ndikufalitsa. Kumvetsetsa zomwe zili zoona ndi zomwe sizili zovuta kwambiri.
Masiku ano, zikuoneka kuti sitingathenso kudalira nzeru zathu.
Ngakhale kuti zida zodziwira mavidiyo abodza zapangidwa, pangopita nthawi pang'ono kuti kusiyana kwa chidziwitso kukhale kocheperako kotero kuti ngakhale zowunikira zabwino kwambiri zabodza sizidzatha kudziwa ngati vidiyoyo ndi yeniyeni kapena ayi.
Siyani Mumakonda