DBPapers
DOI: 10.5593/sgem2017/32/S14.108

FOREST CANOPY COVER DETERMINATION USING AN UNMANNED AERIAL VEHICLE AND OBJECT-BASED IMAGE ANALYSIS IN A BEECH AND DURMAST OAK STAND IN THE SOUTH-WEST HILLY AREA OF POIANA-RUSCĂ MOUNTAINS, ROMANIA

T. P. Banu, G. F. Borlea, C. Banu
Tuesday 12 September 2017 by Libadmin2017

References: 17th International Multidisciplinary Scientific GeoConference SGEM 2017, www.sgem.org, SGEM2017 Conference Proceedings, ISBN 978-619-7408-05-8 / ISSN 1314-2704, 29 June - 5 July, 2017, Vol. 17, Issue 32, 837-844 pp, DOI: DOI: 10.5593/sgem2017/32/S14.108

ABSTRACT

The forest canopy cover is an important element of forest inventories and it represents the proportion of the ground covered by the vertical projection of the tree crowns. Traditional ground-based methods cannot be efficient in measuring the vertical projection of the tree crowns and in accurately making determinations of forest canopy cover percentage in stands of over a few hectares. The purpose of the current paper is to present the potential of a new approach for forest canopy cover determination that is based on Unmanned Aerial Vehicles (UAV) surveys combined with Object-Based Image Analysis (OBIA).
A low-cost commercial UAV was used in order to acquire aerial images over a beech and durmast oak stand in the South-West hilly area of Poiana-Ruscă Mountains. Based on the captured images, an orthomosaic was assembled. OBIA was used in order to segment and classify the orthomosaic and calculate the forest canopy cover percentage. The results present a comparison between the current method determination and the traditional ground-based field estimation. Further, the advantages of the methodology in this study in terms of costs, time-consumption and accuracy are discussed.

Keywords: forest canopy cover, UAV, OBIA, remote sensing

PAPER DOI: 10.5593/sgem2017/32/S14.108, FOREST CANOPY COVER DETERMINATION USING AN UNMANNED AERIAL VEHICLE AND OBJECT-BASED IMAGE ANALYSIS IN A BEECH AND DURMAST OAK STAND IN THE SOUTH-WEST HILLY AREA OF POIANA-RUSC? MOUNTAINS, ROMANIA

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