Results 201 to 210 of about 44,514 (243)
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Analysis of scanning systematic errors for airborne laser bathymetry
Applied Optics, 2023For the Palmer mechanical scanning pattern of an airborne laser bathymetry system, the potential errors of the scanning system are analyzed, and the associated error model is derived. The model composes the description of laser rays, water surface fluctuations, and refraction, and introduces certain simplifications concerning the water surface and ...
Libin, Du +7 more
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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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Airborne laser scanning for riverbank erosion assessment
Remote Sensing of Environment, 2005Worldwide, rivers and streams are negatively impacted by sedimentation. However, there are few broad scale techniques for quantifying the sources of sediment, i.e. upland vs. river bank erosion. This research was designed to evaluate the use of airborne LIDAR for characterizing sediment and phosphorus contributions from river bank erosion.
David P. Thoma +3 more
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Forest mapping using airborne laser scanning data
Práce a štúdie, 2023The use of airborne laser scanning technology is nowadays on the rise in Slovakia. The application of this technology in forestry is not lagging behind, and therefore it is important to examine and analyse the process of improvement and application of methods and their use in practice.
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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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Airborne laser scanning—an introduction and overview
ISPRS Journal of Photogrammetry and Remote Sensing, 1999Abstract This tutorial paper gives an introduction and overview of various topics related to airborne laser scanning (ALS) as used to measure range to and reflectance of objects on the earth surface. After a short introduction, the basic principles of laser, the two main classes, i.e., pulse and continuous-wave lasers, and relations with respect to ...
Aloysius Wehr, Uwe Lohr
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Preharvest Measurement of Marked Stands Using Airborne Laser Scanning
Forest Science, 2007Abstract The customer-oriented wood procurement chain from forest to raw material user starts with a knowledge of stands available for harvesting and information on these marked stands. Despite several studies, no adequate method has been developed for obtaining preharvest measurement information to meet existing requirements.
Peuhkurinen, J. +4 more
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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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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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