منابع مشابه
Adaptive Filtering of Aerial Laser Scanning Data
Filtering non-terrain points from raw laser scanning data is the most important goal to improve productivity in DTM generation. Filtering algorithms are built on assumptions about what discriminates terrain points from points on other objects (e.g. buildings and vegetation). In most cases, a single measure is used to accept or reject points. In this paper a three-stage raw data classification a...
متن کاملDetection of Aspens Using High Resolution Aerial Laser Scanning Data and Digital Aerial Images
The aim was to use high resolution Aerial Laser Scanning (ALS) data and aerial images to detect European aspen (Populus tremula L.) from among other deciduous trees. The field data consisted of 14 sample plots of 30 m × 30 m size located in the Koli National Park in the North Karelia, Eastern Finland. A Canopy Height Model (CHM) was interpolated from the ALS data with a pulse density of 3.86/m2...
متن کاملAccuracy of 3d Models Derived from Aerial Laser Scanning and Aerial Ortho-imagery
Three dimensional (3D) mapping has been used widely in the spatial industry as a powerful technique for rendering artificial objects and their surrounding topography. However, an accurate and effective 3D modelling of complex features e.g. feature rich buildings and trees, is still challenging. The aim of this study is to develop an efficient framework to obtain a high-accuracy 3D model of urba...
متن کاملStereo Visualisation of Historical Aerial Photos - an Useful and Important Aerial Archeology Research Tool
Anders Hast, Uppsala University, Sweden, [email protected] Carlotta Capurro, Visual Dimension, Belgium Dries Nollet, Visual Dimension, Belgium Daniel Pletinckx, Visual Dimension, Belgium Benito Vilas Estevez, Universidad de Gales Trinity Saint David, Spain Miguel Carrero Pazos, Universidade de Santiago de Compostela, Spain Jose María Eguileta Franco, Sección de Arqueoloxía, Concello de Ouren...
متن کاملTerrestrial Laser Scanning and Low-cost Aerial Photogrammetry in the Archaeological Modeling of a Jewish Tanneries
In this paper an integrated approach for modeling complex archaeological sites is developed. Particularly, we describe a 3D modeling pipeline which integrates laser scanning and low-cost Photogrammetry over an emblematic Jewish tanneries situated in Avila (Spain). Due to its inherent complexity and the relevance of the archaeological site, Jewish tanneries constitute a perfect framework to put ...
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ژورنال
عنوان ژورنال: Geoinformatics FCE CTU
سال: 2011
ISSN: 1802-2669
DOI: 10.14311/gi.6.14