Spectral unmixing approach in hyperspectral remote sensing: a tool for oil palm mapping
Journal Title: TecnoLógicas - Year 2019, Vol 22, Issue 45
Abstract
Oil palm plantations typically span large areas; therefore, remote sensing has become a useful tool for advanced oil palm monitoring. This work reviews and evaluates two approaches to analyze oil palm plantations based on hyperspectral remote sensing data: linear spectral unmixing and spectral variability. Moreover, a computational framework based on spectral unmixing for the estimation of fractional abundances of oil palm plantations is proposed in this study. Such approach also considers the spectral variability of hyperspectral image signatures. More specifically, the proposed computational framework modifies the linear mixing model by introducing a weighting vector, so that the spectral bands that contribute the least to the estimation of erroneous fractional abundances can be identified. This approach improves palm detection as it allows to differentiate them from other materials in terms of fractional abundances. Experimental results obtained from hyperspectral remote sensing data in the range 410-990 nm show improvements of 8.18 % in User Accuracy (Uacc) in the identification of oil palms by the proposed framework with respect to traditional unmixing methods. Thus, the proposed method achieved a 95% Uacc. This confirms the capabilities of the proposed computational framework and facilitates the management and monitoring of large areas of oil palm plantations.
Authors and Affiliations
Hector Vargas, Ariolfo Camacho Velasco, Henry Arguello
Keywords
Related Articles
- EP ID EP672775
- DOI 10.22430/22565337.1228
- Views 134
- Downloads 0
Design and construction of a hybrid system of heating air by combustion of biomass and solar radiation, using phase change material (PCM) as a source of thermal storage, for cassava drying
This study consisted of designing, building and validation a hybrid system of heating air by combustion of biomass and solar radiation, using phase change material (PCM) as a thermal storage source, for cassava dry...
Secondary voltage regulation based on average voltage control
Thispaper compares a conventional Secondary Voltage Regulation (SVR) scheme based on pilot nodes witha proposed SVR thattakes into account average voltages of control zones. Voltage control significance for the...
Production and characterization of composite materials with epoxy resin matrices reinforced with tire rubber and magnetite in different proportions
This work describes the production and magnetic characterization of a compound base on epoxy resin and powdered rubber reinforced with magnetite (𝐹𝑒3𝑂4) poder. Also it is presented the análisis carried out on the compone...
Thermal behavior evaluation of solar dryers in a passive regime
This article presents the evaluation of the thermal behavior of three solar dryers in a passive flow regime designedfor the environmental conditions of the Colombian Caribbean Coast. Field experiments we...
El nuevo modelo de evaluación para la categorización de las revistas científicas colombianas: ¿un indicador de calidad e impacto de las revistas en el área de ingeniería y tecnología?
En el año 2016, el Departamento Administrativo de Ciencia, Tecnología e Innovación (Colombiano) – Colciencias elaboró y publicó la Política para mejorar la calidad de las publicaciones científicas, en la que uno de los o...