Gabatarwa
Tun daga ƙarshen shekarun 1960 zuwa farkon shekarun 1970, yawancin tsarin daukar hoto na sama na gargajiya an maye gurbinsu da tsarin na'urorin lantarki na lantarki da na iska da kuma na sararin samaniya. Duk da cewa daukar hoto na sama na gargajiya yana aiki ne musamman a cikin raƙuman haske da ake iya gani, tsarin na'urorin nesa na zamani na sama da ƙasa suna samar da bayanai na dijital waɗanda suka shafi hasken da ake iya gani, infrared mai haske, infrared mai zafi, da kuma yankunan microwave. Hanyoyin fassara gani na gargajiya a daukar hoto na sama har yanzu suna da amfani. Duk da haka, na'urorin hangen nesa na nesa suna rufe fannoni daban-daban na aikace-aikace, gami da ƙarin ayyuka kamar ƙirar ka'idar halayen da aka nufa, ma'aunin siffofi na abubuwa, da kuma nazarin hotunan dijital don cire bayanai.
Jinkirin nesa, wanda ke nufin dukkan fannoni na dabarun gano nesa na nesa ba tare da hulɗa ba, hanya ce da ke amfani da na'urar lantarki don gano, yin rikodi da auna halayen wani manufa kuma an fara gabatar da ma'anar a cikin shekarun 1950. Fagen jinkirin nesa da taswirar, an raba shi zuwa yanayin ji 2: jinkirin aiki da na rashin aiki, wanda Lidar ke aiki, yana iya amfani da kuzarinsa don fitar da haske ga abin da aka nufa da kuma gano hasken da ke fitowa daga gare shi.
Active Lidar Sensing da Aikace-aikace
Lidar (gano haske da kewayon haske) fasaha ce da ke auna nisa bisa ga lokacin fitar da siginar laser da karɓar sa. Wani lokaci ana amfani da Airborne LiDAR tare da na'urar daukar hoto ta laser ta iska, taswira, ko LiDAR.
Wannan jadawalin aiki ne na yau da kullun wanda ke nuna manyan matakan sarrafa bayanai a lokacin amfani da LiDAR. Bayan tattara daidaitattun (x, y, z), rarraba waɗannan maki na iya inganta ingancin fassara bayanai da sarrafawa. Baya ga sarrafa geometric na maki LiDAR, bayanai masu ƙarfi daga ra'ayoyin LiDAR suma suna da amfani.
A duk aikace-aikacen gano nesa da taswirar, LiDAR yana da fa'ida ta musamman ta samun ma'auni mafi daidaito ba tare da hasken rana da sauran tasirin yanayi ba. Tsarin gano nesa na yau da kullun ya ƙunshi sassa biyu, mai gano kewayon laser da firikwensin aunawa don sanyawa, wanda zai iya auna yanayin ƙasa kai tsaye a cikin 3D ba tare da karkatar da yanayin geometric ba saboda babu wani hoto da ya shiga (an nuna duniyar 3D a cikin jirgin 2D).
WASU DAGA CIKIN TUSHEN LIDAR NAMU
Zaɓuɓɓukan Tushen Laser na LiDAR masu aminci ga ido don firikwensin
