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Introduction to Forestry Applications of Airborne Laser Scanning
2013Airborne laser scanning (ALS) has emerged as one of the most promising remote sensing technologies to provide data for research and operational applications in a wide range of disciplines related to management of forest ecosystems. This chapter starts with a brief historical overview of the early forest-related research on airborne Light Detection and ...
Jari Vauhkonen +3 more
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OPALS – A framework for Airborne Laser Scanning data analysis
Computers, Environment and Urban Systems, 2014Abstract A framework for Orientation and Processing of Airborne Laser Scanning point clouds, OPALS, is presented. It is designed to provide tools for all steps starting from full waveform decomposition, sensor calibration, quality control, and terrain model derivation, to vegetation and building modeling. The design rationales are discussed.
Gottfried Mandlburger, Norbert Pfeifer
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Color-guided enhancement of airborne laser scanning data
2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017This paper suggests using color-guided depth enhancement algorithms of computer vision to improve the resolution of airborne laser scanning (ALS) point clouds for remote sensing applications. We use co-registered high resolution color images with nadir view to enhance the ALS data; and perform quantitative evaluation in form of RMSE considering the ...
Goksu Keskin +2 more
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Bayesian approach to tree detection with airborne laser scanning
2012 IEEE International Geoscience and Remote Sensing Symposium, 2012In the example cases, the true number of trees in the selected 25 × 25 m2 stands were 54 (Figs. 2 and 3) and 60 (Fig. 4). As the initial guess in the ALS based tree detection, we set 96 equidistantly located model trees on the stand. The MAP estimates were computed as described in Section 3. The results are shown in Figs. 2, 3, and 4.
Timo Lähivaara +6 more
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Assessing Biodiversity by Airborne Laser Scanning
2013Estimating biodiversity in complex habitats, particularly in forests, is still a major challenge for ecologists and conservationists. In ground-breaking work, Robert MacArthur and his colleagues quantified relationships between bird and vertical vegetation diversity, and found that the diversity of vegetation structure strongly influenced bird species ...
Jörg Müller, Kerri Vierling
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Intensity Correction of Multispectral Airborne Laser Scanning Data
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021Correction of the range and angle effects has been proven to be viable to improve the radiometric quality of laser scanning data, regardless of the data collection platform. Existing range normalization (RN) method usually adopts the range to the power of two as a correction factor.
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Scanning modes of an airborne scanning laser ranging-imager sensor
SPIE Proceedings, 2000The real-time acquiring and processing technology of three- dimension (3D) geosciences information is an important field of modern remote sensing. The Airborne Scanning Laser Ranging-Imager Sensor (ASLRIS) is a new generation of remote sensing and mapping system for providing 3D geosciences information.
Rong Shu, Yihua Hu, Yongqi Xue
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Feasibility of Multispectral Airborne Laser Scanning Data for Road Mapping
IEEE Geoscience and Remote Sensing Letters, 2017Multispectral airborne laser scanning (ALS) data have recently become available. The objective of this letter is to study the feasibility of these data for road mapping—for road detection and road surface classification. The results are compared with the results of traditional aerial ortho images using object-based image analysis and Random Forest ...
Kirsi Karila +3 more
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Valuation of Airborne Laser Scanning Based Forest Information
2013When an inventory is planned for, the decision makers typically strive for maximizing accuracy of the information with a given budget, or even maximize accuracy without considering any budget at all. Recent developments in airborne laser scanning and other remote sensing techniques facilitate the use of data obtained from such sources as an integrated ...
Annika Kangas, Tron Eid, Terje Gobakken
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Surface classification from airborne laser scanning data
Computers & Geosciences, 2004The high point density of airborne laser mapping systems enables achieving a detailed description of geographic objects and of the terrain. Growing experience shows, however, that extracting information directly from the data is practically impossible.
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