Airborne laser
Test field for airborne laser scanning in Finland
... Airborne laser scanning (ALS) is a widely spread operational measurement tool for obtaining 3D coordinates of the ground ...mobile laser scanning (MLS) system assembled on a car ...a laser ...
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SINGLE TREE DETECTION FROM AIRBORNE LASER SCANNING DATA USING A MARKED POINT PROCESS BASED METHOD
... Tree detection and reconstruction is of great interest in large-scale city modelling. In this paper, we present a marked point process model to detect single trees from airborne laser scanning (ALS) data. ...
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EVALUATION OF VERTICAL LACUNARITY PROFILES IN FORESTED AREAS USING AIRBORNE LASER SCANNING POINT CLOUDS
... The Airborne Laser Scanning (ALS) data acquisition has been carried out by the project partner company Riegl Measurement Systems (Austria) over Ágotapuszta, Püspökladány (Great Hungarian Plain, ...
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ALGORITHM FOR THE AUTOMATIC ESTIMATION OF AGRICULTURAL TREE GEOMETRIC PARAMETERS USING AIRBORNE LASER SCANNING DATA
... The estimation of dendrometric parameters has become an important issue for the agricultural planning and management. Since the classical field measurements are time consuming and inefficient, Airborne ...
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AUTOMATED INDIVIDUAL TREE DETECTION IN AMAZON TROPICAL FOREST FROM AIRBORNE LASER SCANNING DATA
... of laser pulses (Lefsky et al., 2002). Airborne Laser Scanning (ALS) is a LiDAR based method mounted on an aircraft, which position and rotation of the sensor is recorded using a differential global ...
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Airborne laser scanning applied to eucalyptus stand inventory at individual tree level
... of airborne laser scanning (ALS) to a large-scale eucalyptus stand inventory by the method of individual trees, as well as to propose a new method to estimate tree diameter as a function of the height ...
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Contributos do Airborne Laser Scanning na geração de Modelos Digitaisde Elevação e produdos derivados: Ensaio comparativo baseado em questões geomorfológicas e hidrogeográficas
... ALS60 Airborne Laser Scanner apresenta como especificações técnicas a possibilidade de adquirir valores de 91 pontos por m 2 a uma velocidade de 150Km/h e a uma altitude de 300 ...
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RECONSTRUCTION, QUANTIFICATION, AND VISUALIZATION OF FOREST CANOPY BASED ON 3D TRIANGULATIONS OF AIRBORNE LASER SCANNING POINT DATA
... Airborne laser scanning (ALS) has become a routinely operated technique for obtaining wall-to-wall data for vast geographical areas (e.g., White et al., 2013; Maltamo et al., 2014). From a practical point ...
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Assessing biomass based on canopy height profiles using airborne laser scanning
... 2011). Airborne laser scanning (ALS) technology is a potential remote sensing tool, as it can provide data on multiple strata of the canopy, while passive sensors cannot (Mag- nussen and Boudewyn, 1998; ...
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Monitoring the understory in eucalyptus plantations using airborne laser scanning
... Assessing biomass based on canopy height profiles using airborne laser scanning data in eucalypt plantations. Weed control strip influences the initial growth of Eucalyptus grandis[r] ...
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Airborne laser scanning for terrain modeling in the Amazon forest
... To filter the ground returns for DTM creation, three filtering algorithms were considered. Two were based on interpolation (Kraus and Pfeifer 1998, from now on referred to as KF; and Evans and Hudak 2007, from now on ...
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Forest and fuel variables estimation and digital terrain modelling with airborne laser scanning and high resolution multi-spectral images
... with Airborne Laser Scanning and High Resolution Multi-Spectral Images", financed by the Portuguese foundation Fundação para a Ciência e Tecnologia ( FCT ), has as partners the University of Aveiro, the ...
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Estimativa da altura da vegetação utilizando dados Airborne Laser Scanner
... Segundo a American Society of Photogrammetry and Remote Sensing (ASPRS) (2004) um típico ALS é formado por uma unidade de medida laser, um scanner óptico mecânico e uma unidade de controle e processamento. Um ...
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Allometric models of tree biomass for airborne laser scanning and ground inventory of carbon pool in the forests of Eurasia: Comparative analysis
... innovative airborne laser method of the forest canopy sensing allows processing of on-line a number of morphological indices of trees, to combine them with the biomass allometric models and to evaluate the ...
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Aplicação de escaneamento a laser aerotransportado no inventário a nível de árvores individuais de povoamentos de eucaliptoApplication of airborne laser scanner to forest inventory at individual tree level of eucalyptus stands
... O setor florestal tem experimentado rápida evolução no que diz respeito aos métodos de mensuração da produção de madeira, seja a nível de equipamentos ou dos sistemas empregados. Dentre estas mudanças está o uso do ...
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Archaeological research of ancient mining landscapes in Galicia (Spain) using Airborne Laser Scanning data.
... 2011 using an IGI LM 5600 sensor, operated at a laser wavelength of 1064 nm from a flight altitude of 1000 to 1800 m (above sea level). The beam divergence was 0.5 mrad, the pulsing frequency 70 kHz, the scan ...
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TENSOR MODELING BASED FOR AIRBORNE LiDAR DATA CLASSIFICATION
... Using airborne LiDAR amplitude data features for urban landcover classification have been discussed in many ...low-sampled airborne laser scanning data are combined to distinguish buildings from ...
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Airborne flux measurements of biogenic isoprene over California
... The airborne surface flux normalized for temperature and radia- tion using the Guenther et ...derive airborne basal emission factors (BEFs) to di- rectly compare to emission factors used by models ...the ...
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Cadastro 3D no Brasil a apartir de varredura a laser (laser scanning)
... A complexidade e o alto adensamento das áreas urbanas têm contribuído para a ocupação cada vez mais verticalizada da superfície terrestre. Na medida em que novas construções sobre ou sob a superfície surgem, as ...
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Proposition of a photocatalytic reactor to inactivate airborne microorganisms.
... Esta adsorção, ou seja, o contato do catalisador com o microrganismo é necessário para que os microrganismos possam ser destruídos pelo processo fotocatalítico, uma vez que os radicais h[r] ...
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