2018
DOI: 10.5380/rf.v48i3.56150
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Treedetection: Automatic Tree Detection Using Uav-Based Data

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Cited by 14 publications
(13 citation statements)
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“…The newly developed Unmanned Aerial Vehicles (UAV) complement the established remote sensing (RS) methods. UAVs have increased the number of benefits, such as acquiring extreme high-spatial resolution data, flexibility in usage and over time, and the capacity to carry various sensors, such as a multispectral camera, to observe vegetation health [25,26].…”
Section: Introductionmentioning
confidence: 99%
“…The newly developed Unmanned Aerial Vehicles (UAV) complement the established remote sensing (RS) methods. UAVs have increased the number of benefits, such as acquiring extreme high-spatial resolution data, flexibility in usage and over time, and the capacity to carry various sensors, such as a multispectral camera, to observe vegetation health [25,26].…”
Section: Introductionmentioning
confidence: 99%
“…The same limitation occurs with hyperspectral-based methods, such as [13], which uses a hyperspectral frame format camera and an RGB camera along with 3D modelling and Multilayer Perceptron (MLP) neural networks, and obtains accuracy values ranging from 40% to 95% depending on the conditions of the area. Following the idea of exploiting the 3D-shape of trees, some methods perform tree detection from RGB images using generated Digital Surface Models (DSMs), Structure-from-Motion (SfM) or local-maxima based algorithms on UAV-derived Canopy Height Models (CHMs) [14,15]. Nevertheless, the aforementioned methods are likely to show poor performance for trees with irregular canopy, trees in mixed-species forests, or trees that are partially occluded by taller trees.…”
Section: Introductionmentioning
confidence: 99%
“…Foram testados dois tratamentos, sendo: a) processamento com algoritmo do software LIDAR 360 (GREENVALLEY INTERNATIONAL, 2018) para plantios jovens (Tj1) e plantios adultos (Ta1); e b) processamento no software ArcGis com a ferramenta TreeDetect (HENTZ et al, 2018), também para plantios jovens (Tj2) e plantios adultos (Ta2). A determinação da qualidade do processamento de cada 367 tratamento se deu com a comparação dos resultados com a contagem manual em tela, sendo Tj0 o tratamento testemunha plantios jovens e Ta0 o tratamento testemunha plantios adultos.…”
Section: Detecção E Contagem Dos Alvosunclassified
“…Para tanto foram criados raster das áreas com plantios jovens e adultos pela intersecção com os shapes de interesse. Nesse processamento, utilizou-se a ferramenta TreeDetect, que consiste numa ferramenta, em linguagem Python, construída em ambiente ArcGis (HENTZ et al, 2018). Os parâmetros adotados para a detecção das árvores foram:…”
Section: Treedetectunclassified