Tsegulani kachidindo ka kaphatikizidwe ka makanema pogwiritsa ntchito neural network

Gulu la ofufuza ochokera ku Shanghai Technical University losindikizidwa zida Zotsatira, zomwe zimalola, pogwiritsa ntchito njira zophunzirira makina, kutengera kayendetsedwe ka anthu pogwiritsa ntchito zithunzi zosasunthika, komanso kusintha zovala, kuzipititsa kumalo ena ndikusintha mbali yomwe chinthu chikuwonekera. Khodiyo idalembedwa mu Python
pogwiritsa ntchito chimango PyTorch. Assembly imafunanso torchvision ndi CUDA Toolkit.

Chida chothandizira chimalandira chithunzi cha mbali ziwiri monga cholowetsa ndikugwirizanitsa zotsatira zosinthidwa kutengera chitsanzo chomwe mwasankha. Zosintha zitatu zimathandizidwa:
Kupanga chinthu chosuntha chomwe chimatsatira mayendedwe omwe chitsanzocho chinaphunzitsidwa. Kusamutsa zinthu za maonekedwe kuchokera ku chitsanzo kupita ku chinthu (mwachitsanzo, kusintha kwa zovala). Kubadwa kwa ngodya yatsopano (mwachitsanzo, kaphatikizidwe ka chithunzi chambiri potengera chithunzi cha nkhope yonse). Njira zonse zitatuzi zitha kuphatikizidwa, mwachitsanzo, mutha kupanga kanema kuchokera pa chithunzi chomwe chimafanizira machitidwe achinyengo chovuta cha acrobatic muzovala zosiyanasiyana.

Panthawi ya kaphatikizidwe, ntchito zosankha chinthu mu chithunzi ndikupanga zinthu zomwe zikusowa posuntha zimachitikira nthawi imodzi. Mtundu wa neural network ukhoza kuphunzitsidwa kamodzi ndikugwiritsidwa ntchito pakusintha kosiyanasiyana. Za kutsitsa zilipo zokonzeka zopangidwa zomwe zimakulolani kugwiritsa ntchito zidazo nthawi yomweyo popanda maphunziro oyambira. Ma GPU okhala ndi kukumbukira osachepera 8GB amafunikira kuti agwire ntchito.

Mosiyana ndi njira zosinthira kutengera kusinthika ndi mfundo zazikuluzikulu zofotokozera malo a thupi mu danga la mbali ziwiri, Impersonator amayesa kupanga mauna amitundu itatu ndi kufotokoza kwa thupi pogwiritsa ntchito njira zophunzirira makina.
Njira yomwe ikufunsidwayo imalola kuti anthu azisintha potengera mawonekedwe amunthu payekha komanso momwe amakhalira pano, kutengera mayendedwe achilengedwe a miyendo.

Kusunga zidziwitso zoyambirira monga mawonekedwe, mawonekedwe, mitundu ndi kuzindikira nkhope panthawi yakusintha, generative adversarial neural network (Liquid Warping GAN). Zambiri zokhudzana ndi gwero lachinthu ndi magawo ake odziwika bwino amachotsedwa pogwiritsa ntchito convolutional neural network.

Source: opennet.ru