Illumination Geometry and Flying Height Influence Surface Reflectance and NDVI Derived from Multispectral UAS Imagery

Illumination Geometry and Flying Height Influence Surface Reflectance and NDVI Derived from Multispectral UAS Imagery

Small unmanned aerial systems (UAS) have allowed the mapping of vegetation at very high spatial resolution, but a lack of standardisation has led to uncertainties regarding data quality. For reflectance measurements and vegetation indices (Vis) to be comparable between sites and over time, careful f...

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Bibliographic Details
Main Authors: Daniel Stow, Caroline J. Nichol, Tom Wade, Jakob J. Assmann, Gillian Simpson, Carole Helfter
Format: Article
Language:English
Published: MDPI AG 2019-07-01
Series:Drones
Subjects:
remote sensing
data quality
multispectral imagery
NDVI
illumination geometry
anisotropic reflectance
radiometric calibration
UAV
Parrot Sequoia
Online Access:https://www.mdpi.com/2504-446X/3/3/55

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