He aha ka Fisheye Lens a me nā ʻano o nā hopena Fisheye

ʻO ka lens maka iʻa he lens ākea ākea loa, ʻike ʻia hoʻi he lens panoramic.Manaʻo maʻamau ʻo ka lens me ka lōʻihi kikoo o 16mm a i ʻole ka lōʻihi pōkole he lens fisheye, akā ma ka ʻenekinia, ʻo ka lens me kahi ākea ʻike ʻoi aku ma mua o 140 degere i kapa ʻia he lens fisheye.I ka hoʻomaʻamaʻa ʻana, aia kekahi mau lens me nā kihi nānā i ʻoi aku a ʻoi aku paha i 270 degere.ʻO ka lens fisheye kahi hui kukui anti-telephoto me ka nui o ka distortion barela.ʻO ka lens mua o kēia lens he parabolically protruding i ke alo, a ua like ke ʻano me ka maka o ka iʻa, no laila ua kapa ʻia ʻo "fisheye lens", a ua like kona ʻike me ko ka iʻa e nānā ana i nā mea ma luna o ka wai.

Ke hilinaʻi nei ka lens fisheye i ka hoʻokomo ʻana i ka nui o ka distortion barela no ka loaʻa ʻana o kahi kihi nānā nui.No laila, koe wale nō ka mea i waenakonu o ke kiʻi, ʻo nā ʻāpana ʻē aʻe e pono ai nā laina pololei i kekahi mau distortions, e alakaʻi ana i nā kapu he nui i kāna noi.No ka laʻana, ma ke kahua o ka palekana, hiki i kahi lens fisheye ke pani i nā lens maʻamau e nānā i kahi ākea.No ka mea hiki i ka huina nānā ke piʻi i 180º a ʻoi aku paha, ʻaneʻane ʻaʻohe kihi make no ka nānā ʻana.Eia nō naʻe, ma muli o ka distortion o ke kiʻi, paʻakikī ke ʻike ʻia e ka maka o ke kanaka, kahi e hōʻemi nui ai i ka hiki ke nānā;ʻO kekahi laʻana ma ke kahua o ka robotics, pono nā robots automated e hōʻiliʻili i ka ʻike kiʻi o nā hiʻohiʻona a puni a hoʻomaopopo iā lākou e hana i nā hana kūpono.Inā hoʻohana ʻia kahi lens fisheye, hiki ke hoʻonui ʻia ka pono o ka hōʻiliʻili ʻana ma 2-4 mau manawa, akā ʻo ka aberration e paʻakikī i ka polokalamu ke ʻike.No laila pehea mākou e ʻike ai i ke kiʻi mai ka lens fisheye?Hāʻawi ʻia kahi algorithm e ʻike i nā kūlana o nā mea i ke kiʻi.Akā paʻakikī hoʻi ka ʻike ʻana i nā kiʻi paʻakikī ma muli o ka paʻakikī o ka hoʻopili ʻana o ka polokalamu.No laila, ʻo ke ala maʻamau i kēia manawa, ʻo ia ka hoʻopau ʻana i ka distortion i ke kiʻi ma o ke ʻano o ka hoʻololi ʻana, i loaʻa ai kahi kiʻi maʻamau a laila ʻike.

ʻO ka pilina ma waena o ka pōʻai kiʻi a me ka sensor penei:

I ka wā mua, hoʻohana wale ʻia nā lens maka iʻa i ke kiʻi ʻana ma muli o ko lākou ʻano nani kūikawā ma muli o ka distortion barela a lākou i hana ai i ke kaʻina hana kiʻi.I nā makahiki i hala iho nei, ua hoʻohana pinepine ʻia ka noi ʻana o ka lens fisheye ma ke kahua o ke kiʻi ākea ākea, pūʻali koa, nānā, panoramic simulation, spherical projection a pēlā aku.Ke hoʻohālikelike ʻia me nā lens ʻē aʻe, loaʻa i ka lens fisheye nā pōmaikaʻi o ke kaumaha māmā a me ka liʻiliʻi.