Evaluating spectroscopic measurement protocols and the potential of UAV-based digital cameras to measure reflectance and vegetation indices. / Beason, Richard.

School of Management, King's College London, 2015. 93 p.

Research output: ThesisMaster's Thesis

Published

Abstract

The use of modified digital cameras as remote sensing tools offers many potential benefits, particularly in combination with UAV-based platforms. In this study, reflectances derived from camera images for a group of 31 test samples demonstrated strong correlations with spectrometer-based readings in both the red (r2=9.76-9.89) and near-infrared ( r2=9.31-9.66) wavelengths. The protocol employed additionally suggested that a thorough pre-evaluation of the instruments involved can potentially improve the quality of data produced.

The ability to extract red and infrared reflectances from camera images presents significant potential for attaining NDVI measurements, a field in which use of this technology has so far been limited. NDVI images produced, both in the lab and from a UAV, successfully identified healthier vegetation and provided higher image clarity than a purpose-built sensor. The performance of an alternative, single-camera method of measuring NDVI was additionally assessed for comparison.
Original languageEnglish
Publisher
  • School of Management, King's College London
Publication statusPublished - 21 Jan 2015
This open access research output is licenced under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

ID: 27053799