Multispectral thiab hyperspectral tej thaj chaw deb sensing yog dab tsi?
Multispectral thiab hyperspectral tej thaj chaw deb sensing yog dab tsi?

Video: Multispectral thiab hyperspectral tej thaj chaw deb sensing yog dab tsi?

Video: Multispectral thiab hyperspectral tej thaj chaw deb sensing yog dab tsi?
Video: Introducing DJI Mavic 3 Multispectral 2024, Hlis ntuj nqeg
Anonim

Multispectral duab yog tsim los ntawm sensors Qhov ntsuas tau pom lub zog nyob rau hauv ob peb ntu tshwj xeeb (tseem hu ua bands) ntawm electromagnetic spectrum. Piv txwv li, multispectral cov duab tuaj yeem siv los qhia thaj chaw hav zoov, thaum hyperspectral cov duab tuaj yeem siv los qhia txog tsob ntoo hauv hav zoov.

Yog li ntawd, dab tsi yog qhov txawv ntawm multispectral thiab hyperspectral tej thaj chaw deb sensing?

Lub ntsiab Qhov sib txawv ntawm multispectral thiab hyperspectral imaging yog tus naj npawb ntawm wavebands tau duab thiab qhov nqaim npaum li cas. Multispectral cov duab feem ntau yog hais txog 3 mus rau 10 qhov sib cais "broader" bands. Hyperspectral Cov duab muaj ntau qhov nqaim (10-20 nm).

Ib tug kuj yuav nug, dab tsi yog multispectral imaging siv rau? Multispectral duab yog siv rau ntes thiab taug qab cov hom phiaj tub rog vim nws ntsuas nruab nrab-yoj infrared thiab ntev-yoj infrared. Multispectral duab ntsuas hluav taws xob uas muaj nyob rau hauv ib yam khoom, tsis hais seb muaj ib qho teeb meem sab nraud. Hom kev tshawb nrhiav no tseem hu ua thermal duab.

Ib yam li ntawd, nws tau nug, dab tsi yog hyperspectral remote sensing?

Hyperspectral tej thaj chaw deb sensing yog qhov kev tshawb fawb ntawm kev nrhiav cov duab digital ntawm cov ntaub ntawv hauv ntiaj teb hauv ntau qhov nqaim sib txuas spectral bands. Hyperspectral tej thaj chaw deb sensing sib txuas cov duab thiab spectroscopy hauv ib qho system, uas feem ntau suav nrog cov ntaub ntawv loj thiab yuav tsum tau ua cov txheej txheem tshiab.

Hyperspectral txhais li cas?

Hyperspectral imaging, zoo li lwm yam spectral imaging, sau thiab ua cov ntaub ntawv los ntawm thoob plaws lub electromagnetic spectrum. Lub hom phiaj ntawm hyperspectral duab yog kom tau txais cov spectrum rau txhua pixel hauv daim duab ntawm ib qho chaw, nrog rau lub hom phiaj ntawm kev nrhiav cov khoom, txheeb xyuas cov ntaub ntawv, lossis tshawb xyuas cov txheej txheem.

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