A ruwan tabarau na fisheyeruwan tabarau ne mai faɗi-faɗi, wanda kuma aka sani da ruwan tabarau mai ban mamaki. Gabaɗaya ana ɗaukarsa cewa ruwan tabarau mai tsawon mai hankali na 16mm ko gajeriyar tsawon mai hankali shine ruwan tabarau na fisheye, amma a fannin injiniyanci, ruwan tabarau mai kewayon kusurwar kallo sama da digiri 140 ana kiransa ruwan tabarau na fisheye. A aikace, akwai ruwan tabarau masu kusurwoyin kallo waɗanda suka wuce ko ma sun kai digiri 270. Ruwan tabarau na fisheye rukuni ne na hasken da ke hana ɗaukar hoto tare da karkacewar ganga mai yawa. Ruwan tabarau na gaba na wannan ruwan tabarau yana fitowa a gaba, kuma siffar tana kama da idon kifi, don haka sunan "ruwan tabarau na fisheye", kuma tasirin gani yana kama da na kifi yana kallon abubuwa a sama da ruwa.
Gilashin Fisheye
Gilashin fisheye ya dogara ne akan gabatar da babban karkacewar ganga ta hanyar wucin gadi don samun babban kusurwar kallo. Saboda haka, banda abu a tsakiyar hoton, sauran sassan da yakamata su zama layuka madaidaiciya suna da wasu karkacewar, wanda ke haifar da ƙuntatawa da yawa akan amfani da shi. Misali, a fannin tsaro, gilashin fisheye na iya maye gurbin ruwan tabarau na yau da kullun da yawa don sa ido a wurare daban-daban. Tunda kusurwar kallo na iya kaiwa 180º ko fiye, kusan babu kusurwa mara kyau don sa ido. Duk da haka, saboda karkacewar hoton, yana da wuya a gane abin ta idon ɗan adam, wanda hakan ke rage ƙarfin sa ido sosai; Wani misali kuma shine a fannin robotics, ana buƙatar robots masu sarrafa kansu don tattara bayanan hoto na abubuwan da ke kewaye da su kuma su gano su don ɗaukar matakai masu dacewa.
Idanruwan tabarau na fisheyeIdan aka yi amfani da shi, ingancin tattara bayanai zai iya ƙaruwa sau 2-4, amma rashin daidaiton bayanai yana sa software ya yi wahalar gane shi. To ta yaya za mu gane hoton daga ruwan tabarau na fisheye? An samar da wani tsari don gano matsayin abubuwan da ke cikin hoton. Amma kuma yana da wuya a gane gane zane-zane masu rikitarwa saboda sarkakiyar lissafi na software. Saboda haka, hanyar da aka saba amfani da ita yanzu ita ce kawar da karkacewar hoton ta hanyar jerin canje-canje, don samun hoto na al'ada sannan a gano shi.
Hotunan Fisheye ba a gyara su ba kuma an gyara su
Alaƙar da ke tsakanin da'irar hoto da firikwensin sune kamar haka:
Alaƙa tsakanin da'irar hoto da firikwensin
Asali,Gilashin Fisheyean yi amfani da su ne kawai a daukar hoto saboda kyawunsu na musamman saboda karkacewar ganga da suke ƙirƙira a lokacin aikin daukar hoto. A cikin 'yan shekarun nan, ana amfani da ruwan tabarau na fisheye a fannin daukar hoto mai faɗi, soja, sa ido, kwaikwayon panorama, hasashen siffar ƙwallo da sauransu. Idan aka kwatanta da sauran ruwan tabarau, ruwan tabarau na fisheye yana da fa'idodi na nauyi mai sauƙi da ƙaramin girma.
Lokacin Saƙo: Janairu-29-2022
