Uhlolojikelele
Ukukhula okuqhubekayo kuqeqesha i-GAN ngokuqala ezinqumweni ezincane futhi kancane kancane wengeze izendlalelo ukuze kufinyelelwe ezithombeni ezinokulungiswa okuphezulu. Ibalulekile ngoba yenza ukuhlanganiswa kwe-GAN okuzinzile, kwekhwalithi ye-megapixel kwasebenza okokuqala ngqa.
Ukukhula Okuqhubekayo Kwama-GAN okokugeleza komsebenzi okubona ngekhompyutha okuhumusha noma okukhiqiza imidiya ebonakalayo ukuze ihlaziywe, isebenze, nokudala.
I-Deep Dive
Yethulwe nguKarras et al. (i-NVIDIA) ngo-2017, ukukhula okuqhubekayo (i-ProGAN) ibhekana nokungazinzi nokunensa kwama-GAN okuqeqesha ngokuqondile ngokulungiswa okuphezulu. Kokubili ijeneretha kanye nokubandlulula kuqala kuncane, ngamaphikseli angu-4x4, ukufunda isakhiwo esikhulu kuphela. Izendlalelo ezintsha eziphinda kabili ukulungiswa (8x8, 16x16, kufika ku-1024x1024) bese zengezwa ngokulinganayo kuwo womabili amanethiwekhi ngesikhathi sokuqeqeshwa. Okubalulekile ukuthi, ungqimba ngalunye olusha lufiphala ngokushelela ekusebenziseni ukuhlanganisa kwe-alpha komugqa ukuze inethiwekhi ingashaqiswa ukuguqulwa kwezakhiwo okungazelelwe. Ngokufunda izici ezimahhadla ngaphambi kwemininingwane emihle, ukuqeqeshwa kuzinze kakhudlwana, kuhlangana ngokushesha, futhi kukhiqiza ubuso obuthembekile obenze imiphumela ye-CelebA-HQ yaduma. Leli phepha liphinde lethula ukuchezuka okujwayelekile kwe-minibatch kanye namazinga okufunda alinganayo ukuze kuqhutshekwe kuzinziswe ukuqeqeshwa.
I-Technical Insight
I-fade-in iyisu eliphakathi. Uma ibhulokhi enokulungiswa okuphezulu kwengezwa, okukhiphayo kuhlanganiswa nenguqulo yesampula yokulungiswa kwangaphambilini kusetshenziswa i-alpha yesisindo ephuma ku-0 iye ku-1. Lokhu kuvumela izisindo zezendlalelo ezintsha ukuthi zifudumale kancane kancane esikhundleni sokuphazamisa lokho inethiwekhi esekufundile. Inqubo ye-symmetric yenzeka kumbandlululi. Ukuchezuka okujwayelekile kwe-Minibatch kwenezela isici esifingqa ukuhluka kwenqwaba, kungakhuthazi ijeneretha ukuthi ingagoqeki kuya kokuphumayo okulinganiselwe.
Ukuphumelela Ukukhula Okuqhubekayo kwama-GAN
Ukukhula okuqhubekayo kuqeqesha i-GAN ngokuqala ezinqumweni ezincane futhi kancane kancane wengeze izendlalelo ukuze kufinyelelwe ezithombeni ezinokulungiswa okuphezulu. Ibalulekile ngoba yenza ukuhlanganiswa kwe-GAN okuzinzile, kwekhwalithi ye-megapixel kwasebenza okokuqala ngqa. Ukukhula Okuqhubekayo Kwama-GAN okokugeleza komsebenzi okubona ngekhompyutha okuhumusha noma okukhiqiza imidiya ebonakalayo ukuze ihlaziywe, isebenze, nokudala. Ukuze wakhe ukuqonda okujulile, phatha Ukukhula Okuqhubekayo kwama-GAN njengemodeli yokusebenza, hhayi isici esisodwa: chaza imiphumela efiselekayo, ucacise ukucabanga, futhi uhlukanise lokho isistimu engakwenza ngokwethembeka kulokho okusadinga ukwahlulela kochwepheshe.
Empeleni, amaqembu aqinile asebenzisa ukunemba kwebhalansi ye-Progressive Growing of GANs namaqiniso okusebenza njengekhwalithi yedatha, ukuhluka kokukhanya, nokuvumelana kwamalebula. Babhala imibandela yempumelelo ecacile, ukuhlola okuqhathaniswa nedatha engokoqobo nokugeleza komsebenzi, futhi baphindaphinde ngokusekelwe kumaphethini okuhluleka aqashiwe esikhundleni sokuwina kwebhentshimakhi yesikhathi esisodwa. Yilapho ukuqonda kwethiyori kuguquka kube amandla ahlala njalo kuwo wonke umkhiqizo, inqubomgomo, kanye nokusebenza.
I-Visual AI ingakwazi ukuhlola, ukutholwa, nokumaka imisebenzi esikalini. Ngesikhathi esifanayo, amalungelo ezithombe kanye nemvume kungaba ubungozi bomthetho uma ukutholakala kungacacile. Indlela eqine kakhulu iwukuhlanganisa isivinini sokuhlola nesiyalo sokuphatha: qhuba abashayeli bezindiza, bamba ubufakazi, ushicilele amalogi ezinqumo, futhi ubuyekeze izivikelo ngokuqhubekayo njengoba imodeli yokuziphatha, okulindelwe ngabasebenzisi, kanye nezimfuneko zokulawula zishintsha.
I-Strategic Impact
I-Visual AI ingakwazi ukuhlola, ukutholwa, nokumaka imisebenzi esikalini.
I-Visual AI ingakwazi ukuhlola, ukutholwa, nokumaka imisebenzi esikalini. Ekusetshenzisweni kwekhwalithi ephezulu, lokhu kuhunyushwa emithethweni yokusebenza elinganisekayo, imingcele yobunikazi, nemikhuba yokubuyekeza ephindelelayo ukuze amaqembu akwazi ukukala ukuzethemba esikhundleni sokukala ukungaqondakali.
Amathimba aqanjiwe angakwazi ukulinganisa imiqondo ngokushesha ngezibuyekezo ezimbalwa ezenziwa mathupha.
Amathimba aqanjiwe angakwazi ukulinganisa imiqondo ngokushesha ngezibuyekezo ezimbalwa ezenziwa mathupha. Ekusetshenzisweni kwekhwalithi ephezulu, lokhu kuhunyushwa emithethweni yokusebenza elinganisekayo, imingcele yobunikazi, nemikhuba yokubuyekeza ephindelelayo ukuze amaqembu akwazi ukukala ukuzethemba esikhundleni sokukala ukungaqondakali.
Imisebenzi ingasebenzisa amasiginali wesithombe nawevidiyo obekunzima ukuwenza ngaphambilini.
Imisebenzi ingasebenzisa amasiginali wesithombe nawevidiyo obekunzima ukuwenza ngaphambilini. Ekusetshenzisweni kwekhwalithi ephezulu, lokhu kuhunyushwa emithethweni yokusebenza elinganisekayo, imingcele yobunikazi, nemikhuba yokubuyekeza ephindelelayo ukuze amaqembu akwazi ukukala ukuzethemba esikhundleni sokukala ukungaqondakali.
Ukuqaliswa Komhlaba Wangempela
Ikhiqiza izithombe zobuso be-CelebA-HQ ezinokulungiswa okuphezulu ezibonisa ukuhlanganiswa kwe-GAN okungu-1024x1024.
Ikhiqiza amasampula ekhwalithi ephezulu kwezinye izizinda njengamagumbi okulala (LSUN) nezinto ngesilinganiso.
Isebenza njengendawo yokuqala yezakhiwo eyanwetshwa i-StyleGAN ukuze ikhiqize ubuso obulawulekayo.
Ukufundisa umgomo wokuqeqesha ukusuka kwe-coarse-to-fine ophinde wasetshenziswa kumapayipi akhiqizayo anezilinganiso eziningi.
Amaphethini Okusebenzisa
Ukukhula Okuqhubekayo kwama-GAN ekusebenzeni
Ikhiqiza izithombe zobuso be-CelebA-HQ ezinokulungiswa okuphezulu ezibonisa ukuhlanganiswa kwe-GAN okungu-1024x1024.
Ukukhiqiza izithombe zobuso be-CelebA-HQ ezinokulungiswa okuphezulu ezibonisa ukuthi Amaqembu okuhlanganiswa kwe-GAN angu-1024x1024 ngokuvamile athola imiphumela engcono uma echaza imikhawulo yekhwalithi ngaphambili, agcina indlela yokukhuphuka yomuntu yamakesi asemaphethelweni, futhi alandelele kokubili izinzuzo zokukhiqiza nezindleko zamaphutha ngokuhamba kwesikhathi.
Ukukhula Okuqhubekayo kwama-GAN ekusebenzeni
Ikhiqiza amasampula ekhwalithi ephezulu kwezinye izizinda njengamagumbi okulala (LSUN) nezinto ngesilinganiso.
Ukukhiqiza amasampula ekhwalithi ephezulu yezinye izizinda ezifana namagumbi okulala (i-LSUN) kanye nezinto ezilinganisweni Amaqembu ngokuvamile athola imiphumela engcono uma echaza izilinganiso zekhwalithi ngaphambili, agcina indlela yokukhuphuka yabantu yamakesi asemaphethelweni, futhi alandelele kokubili izinzuzo zokukhiqiza nezindleko zamaphutha ngokuhamba kwesikhathi.
Ukukhula Okuqhubekayo kwama-GAN ekusebenzeni
Isebenza njengendawo yokuqala yezakhiwo eyanwetshwa i-StyleGAN ukuze ikhiqize ubuso obulawulekayo.
Ukukhonza njengendawo yokuqala yokwakhiwa kwe-StyleGAN enwetshiwe kumaThimba akhiqiza ubuso obulawulekayo ngokuvamile athola imiphumela engcono uma echaza izinga eliphezulu ngaphambili, egcina indlela yokukhuphuka yabantu yamakesi asemaphethelweni, futhi alandelele kokubili izinzuzo zokukhiqiza nezindleko zamaphutha ngokuhamba kwesikhathi.
Ukukhula Okuqhubekayo kwama-GAN ekusebenzeni
Ukufundisa umgomo wokuqeqesha ukusuka kwe-coarse-to-fine ophinde wasetshenziswa kumapayipi akhiqizayo anezilinganiso eziningi.
Ukufundisa umgomo wokuqeqeshwa okumahhadla-kuya-okuhle ophinde usetshenziswe kumapayipi akhiqizayo anezilinganiso eziningi Amaqembu ngokuvamile athola imiphumela engcono uma echaza izilinganiso zekhwalithi ngaphambili, egcina indlela yokukhuphuka komuntu yamakesi asemaphethelweni, futhi elandelela kokubili izinzuzo zokukhiqiza nezindleko zamaphutha ngokuhamba kwesikhathi.
Izingozi & Guardrails
Amalungelo ezithombe kanye nemvume kungaba ubungozi bezomthetho uma ukuvela kungacacile.
Ukusebenza kwemodeli kungahluka kukho konke ukukhanya, izibalo zabantu, kanye nezindawo.
Okuhle okungelona iqiniso kungase kungabonakali ngaphandle uma izinga lokuzethemba liqashelwa.
Ukuqalisa Umhlahlandlela
Chaza indlela yokwamukela yokunemba, ukukhumbula, nezindleko zamaphutha.
Chaza indlela yokwamukela yokunemba, ukukhumbula, nezindleko zamaphutha. Phatha isinyathelo ngasinye njengesango lobufakazi: uma imibandela ingafinyelelwa, misa ukukhishwa, vala igebe, bese unweba ukusetshenziswa.
Hlola ngedatha efana nezimo zangempela zokukhiqiza.
Hlola ngedatha efana nezimo zangempela zokukhiqiza. Phatha isinyathelo ngasinye njengesango lobufakazi: uma imibandela ingafinyelelwa, misa ukukhishwa, vala igebe, bese unweba ukusetshenziswa.
Engeza isibuyekezo somuntu ukuze uthole ukuzethemba okuphansi noma izibikezelo zomthelela omkhulu.
Engeza isibuyekezo somuntu ukuze uthole ukuzethemba okuphansi noma izibikezelo zomthelela omkhulu. Phatha isinyathelo ngasinye njengesango lobufakazi: uma imibandela ingafinyelelwa, misa ukukhishwa, vala igebe, bese unweba ukusetshenziswa.
Landelela ukukhukhuleka kwemodeli bese uqinisekisa kabusha ngemva kwezinguquko zekhamera noma zesethi yedatha.
Landelela ukukhukhuleka kwemodeli bese uqinisekisa kabusha ngemva kwezinguquko zekhamera noma zesethi yedatha. Phatha isinyathelo ngasinye njengesango lobufakazi: uma imibandela ingafinyelelwa, misa ukukhishwa, vala igebe, bese unweba ukusetshenziswa.