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Index Geophysics

Extraction of Diseases and Insect Pests for Tobacco Based on Hyperspectral Remote Sensing

Item

Title (Dublin Core)

eng Extraction of Diseases and Insect Pests for Tobacco Based on Hyperspectral Remote Sensing
hrv Izdvajanje bolesti i insekata štetočina na duhanu na temelju hiperspektralnog daljinskog istraživanja

Description (Dublin Core)

eng To study the feasibility of monitoring the diseases and insect pests in tobacco using hyperspectral remote sensing, leaf spectrum of tobacco infected with diseases and insect pests at different severity levels was measured by using ASD hand-held spectroradiometers. The reflectance data was transformed by the method of the first differential coefficient. Meanwhile, the correlation between severity levels and spectral data was analyzed. The results suggested that the wavelength bands between 631 nm and 638 nm, 696 nm and 733 nm as well as 864 nm were selected out as sensitive bands region to the severity levels. The leaf spectral reflectance decreased due to the damage of diseases and insect pests. Moreover, the spectrum of tobacco leaf infected diseases and insect pests moved to the direction of long wave. This research is the basis to monitor the diseases and insect pests in tobacco, and it has a practical significance for applying remote sensing monitoring and determining the appropriate control time.
hrv U svrhu proučavanja izvodljivosti praćenja bolesti i insekata štetočina u duhanu koristeći hiperspektralno daljinsko istraživanje, površina lista duhana zaraženog bolestima i insektima štetočinama na različitima razinama jačine mjerena je koristeći ručne ASD spektroradiometre. Podaci refleksije transformirani su metodom prvog diferencijalnog koeficijenta. U međuvremenu je analizirana korelacija između razina jačine i spektralnih podataka. Rezultati upućuju na to da su područja valnih duljina između 631 nm i 638 nm, 696 nm i 733 nm, kao i 864 nm bila izdvojena kao senzitivno područje u odnosu na razine jačine. Spektralna refleksija lista smanjila se zbog oštećenja nastalih uslijed bolesti i insekata štetočina. Osim toga, spektar lista duhana zaraženog bolestima i insektima štetočinama pomaknuo se u smjeru dugog vala. To istraživanje je temelj za praćenje bolesti i insekata štetočina u duhanu, te ima praktični značaj u primjeni daljinskog istraživanja za potrebe praćenja i određivanja odgovarajućeg vremena kontrole.

Creator (Dublin Core)

Wang, Mei
Li, Xin-ju
Yao, Qian-qian
Liu, Yi

Subject (Dublin Core)

eng tobacco; diseases and insect pests; hyperspectral; reflectance
hrv duhan; bolesti i insekti štetočine; hiperspektralno; refleksija

Publisher (Dublin Core)

Croatian geodetic society

Date (Dublin Core)

2012

Type (Dublin Core)

text
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion

Format (Dublin Core)

application/pdf

Identifier (Dublin Core)

https://hrcak.srce.hr/95831
eng https://hrcak.srce.hr/file/141127

Source (Dublin Core)

Geodetski list
ISSN 0016-710X (Print)
ISSN 1849-0611 (Online)
Volume 66 (89)
Issue 3

Language (Dublin Core)

eng

Rights (Dublin Core)

info:eu-repo/semantics/openAccess
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