NDVI (Normalized Difference Vegetation Index) ni igipimo gikoreshwa cyane mu gupima no kugenzura ubuzima bw'ibimera n'imbaraga zabyo. Kibarwa hakoreshejwe amashusho ya satelite, gipima ingano y'urumuri rugaragara n'urumuri hafi ya infrared rugaragazwa n'ibimera. NDVI ibarwa hakoreshejwe uburyo bwihariye bukoreshwa ku makuru yavuye mu mashusho ya satelite. Ubu buryo bushingira ku ngano y'urumuri rugaragara n'urumuri hafi ya infrared rugaragazwa n'ibimera, kandi bukoresha aya makuru kugira ngo bukore igipimo gishobora gukoreshwa mu gusuzuma ubuzima bw'ibimera n'umusaruro wabyo. Ariko, hari amasosiyete agurisha kamera za NDVI cyangwa senseri zishobora gushyirwa ku ndege zitagira abapilote cyangwa izindi modoka zo mu kirere kugira ngo zifate amashusho ya NDVI afite ubushobozi bwo hejuru. Izi kamera zikoresha filters zihariye kugira ngo zifate urumuri rugaragara n'urumuri hafi ya infrared, hanyuma zishobora gutunganywa hakoreshejwe uburyo bwa NDVI kugira ngo hakorwe amakarita arambuye y'ubuzima bw'ibimera n'umusaruro wabyo.
Indorerwamo zikoreshwa kuri kamera cyangwa sensor za NDVI ubusanzwe zisa n'indorerwamo zikoreshwa kuri kamera cyangwa sensor zisanzwe. Ariko, zishobora kugira imiterere yihariye yo kunoza uburyo urumuri rugaragara n'urumuri rurerure. Urugero, zimwe muri kamera za NDVI zishobora gukoresha indorerwamo zifite irangi ryihariye kugira ngo zigabanye ingano y'urumuri rugaragara rugera kuri sensor, mu gihe zongera ingano y'urumuri rurerure rurerure. Ibi bishobora gufasha kunoza uburyo imibare ya NDVI ibarwa neza. Byongeye kandi, zimwe muri kamera za NDVI zishobora gukoresha indorerwamo zifite uburebure bwihariye cyangwa ingano y'ahagaraga kugira ngo zoroshye uburyo urumuri rufatwa muri spectrum ya hafi ya infrared, ibi bikaba ari ingenzi mu gupima neza kwa NDVI. Muri rusange, guhitamo indorerwamo ya kamera cyangwa sensor ya NDVI bizaterwa n'ikoreshwa ryihariye n'ibisabwa, nko kureba ahantu hifuzwa n'urwego rwa spectral.
Nta gikoresho kirimo
Ibanjirije iyi: Amabara y'indorerwamo za kamera z'inyenyeri Ibikurikira: Indorerwamo zo Kumenya Iris