ʻO nā aniani māmā e hana nei i ke ʻano kiʻi ʻoi aku ka maikaʻi, kahi hoʻohiki a nā kānaka noiʻi

Hana nā kānaka noiʻi i ka algorithm e hoʻomaikaʻi i ke ʻano o ke kiʻi

Ua hele mai kahi hui o nā mea noiʻi ma ke Kulanui o British Columbia a me ke Kulanui o Siegen me kahi ʻano o nā ʻenehana kiʻi computational hiki ke hoʻomaikaʻi maikaʻi i ke ʻano o nā kiʻi i kiʻi ʻia me nā kāmela DSLR i hoʻolako ʻia me nā aniani aniani maʻalahi.

Hoʻohiki nā mea noiʻi i ke ʻano o ke kiʻi ʻoi aku ka maikaʻi me ka hoʻohana ʻana i nā aniani maʻalahi, hema ka mea kumu a pololei i kahi hiʻohiʻona kiʻi i hoʻoponopono ʻia.

Ke pani nei i nā aniani pahupaʻi paʻakikī me nā mea ʻē aʻe maʻalahi

He mea paʻakikī loa kahi aniani no nā kāmela hou: e like me ka hoʻolauna ʻana o kēlā me kēia aniani i kāna kiʻi pilikino a me nā distortions, pono nā mea hana e hoʻokau i nā mea aniani he nui, o nā ʻano like ʻole a me nā nui, me ke kumu o ka hoʻopau ʻana i nā aberrations a kekahi. . ʻO ka hopena, hiki i kahi aniani kūlana maikaʻi ke ʻoi aku ma mua o 20 mau mea, me nā hopena pololei i kāna kumukūʻai a me ke kaupaona.

i ka pepa i hana ʻia no ka ʻaha kūkā SIGGRAPH hanohano, kahi hui o nā kānaka noiʻi Kanada a me Kelemania i hele mai me kahi ala ʻē aʻe. Ma kahi o nā aniani paʻakikī i kēia lā, hoʻi lākou i ke kumu a hoʻohana i kahi aniani maʻalahi a maʻalahi hoʻi, e like me ka mea i hoʻohana ʻia i ka wā kahiko, a laila huli i kekahi mau algorithms akamai e hoʻomaikaʻi i ke kiʻi i hopena i ka hana ma hope o ka hana. ʻAʻole kilokilo nā algorithms, akā ʻo ka makemakika paʻakikī a me ke kumu o kēia pepa.

ʻO nā aniani maʻalahi e hana ana i ke ʻano kiʻi ʻoi aku ka maikaʻi me ka hoʻohana ʻana i nā algorithms

No ke kumu o ka noiʻi, ua hoʻohana lākou i kahi kāmela SLR kikohoʻe o kēia au me nā mea aniani hoʻokahi i hana ʻia e like me plano-convex a i ʻole nā ​​aniani biconvex, a me nā pālua achromatic. ʻO ka hopena he maikaʻi ke kiʻi i hoʻohālikelike ʻia me nā kāmela kiko-a-paʻi kiʻi no nā puka e pili ana i ka f / 4.5, akā me ka hoʻohaʻahaʻa ʻana i ka maikaʻi no nā puka nui o f / 2 a ʻoi aku. ʻOiai ʻaʻole e hoʻololi nā mea aniani hoʻokahi i kahi aniani kiʻekiʻe, e hoʻohana ana i nā ʻenehana e hāʻawi i ka maʻalahi o ke kūkulu ʻana i nā aniani a, no laila, i ka hōʻemi ʻana o ke kumukūʻai a me ke kaupaona.

Ua hoʻāʻo ʻia ma nā aniani kalepa e like me Canon 28-105 mm, e hoʻohana mau ana i kēia ʻano hana i hiki ke hoʻomaikaʻi i ke kiʻi i loaʻa, no laila hiki i nā algorithms ke hoʻohana i nā kumu maʻamau, ʻaʻole i nakinaki wale ʻia i nā mea aniani hoʻokahi.

He lōʻihi lōʻihi kā ka poʻe noiʻi e hoʻomaikaʻi ai i nā aniani

Aia kekahi hana hou aʻe e pono ai; i kēia manawa, ke deconvolving nei nā mea noiʻi i nā kiʻi me nā hana hoʻolaha pālahalaha (PSF) i hoʻoponopono ʻia no kahi hohonu o kahi hanana. Hiki ke hoʻomaikaʻi ʻia kēia ma ka hana ʻana i ka deconvolution me PSF no nā hohonu o ke kiʻi a me nā nalu. Hiki ke hana ʻia pēlā optimization me ka ʻike ʻana i nā palena o ka ʻōnaehana ʻike. Nui nā lumi no ka hoʻomaikaʻi a ʻo ka hopena hiki iā mākou ke loaʻa nā aniani maʻalahi e hana ana i ke ʻano kiʻi ʻoi aku ka maikaʻi.

Inā ʻoe hoihoi i nā kikoʻī maikaʻi a me ka makemakika pū, loaʻa ka pepa piha no ka heluhelu ʻana.