Results 211 to 220 of about 294,690 (247)
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Conference on Laser and Electrooptical Systems, 1976
The DFVLR-Lidar-System VI is made for airborne use to measure aerosol mass concentration over greater areas than it is possible from ground stations. It consists of a Nd-glass laser as a transmitter and a parabolic mirror as a receiver. Technical data are given in Table I.
C. Werner, W. Michl
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The DFVLR-Lidar-System VI is made for airborne use to measure aerosol mass concentration over greater areas than it is possible from ground stations. It consists of a Nd-glass laser as a transmitter and a parabolic mirror as a receiver. Technical data are given in Table I.
C. Werner, W. Michl
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LiDAR-guided analysis of airborne hyperspectral data
2009 First Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, 2009This paper describes a new framework to the collection and fusion of multisensor airborne LiDAR and hyperspectral data. We describe a data fusion philosophy that provides a spatially precise positioning of hyperspectral data based on discrete first and last return LiDAR data.
K. Olaf Niemann +3 more
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Effects of ocean waves on airborne lidar imaging
Applied Optics, 1996The effects of ocean waves on lidar imaging of submerged objects are investigated. Two significant consequences of wave focusing or defocusing are quantified: (a) intensification of near-surface backscatter in which the mean return is increased relative to that for a flat interface, and (b) spatial-temporal modulations of the backscattered return.
J W, McLean, J D, Freeman
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Geometry based airborne LIDAR data compression
2013 IEEE International Conference on Multimedia and Expo (ICME), 2013Airborne LIDAR data often consumes hundreds of gigabytes. Existing LIDAR data compression schemes can compress the file to 5%-23% of the original size. Even after compression, the compressed data size is still in the order of gigabyte, which makes it impractical for many applications. This paper proposes a novel geometry based compression scheme.
Xiaoling Li, Wenjun Zeng 0001, Ye Duan
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Airborne LiDAR Data Processing
2016This chapter introduces the main data analysis methods associated with topographic and bathymetric airborne LiDAR systems. Data delivered by these sensors can be of two types: the majority of commercial systems deliver three-dimensional (3D) point clouds (systems referred to as multiecho), whereas a limited number directly provides the whole laser ...
Mallet, Clement +2 more
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Airborne lidar for fisheries applications
Optical Engineering, 2001An airborne lidar using commercial, off-the-shelf components was developed by the National Oceanic and Atmospheric Administration for fisheries' surveys. We make several test flights of the system and develop several signal processing techniques to discriminate between the returns from fish and from small particles in the water. We use these techniques
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Airborne lidar for environmental measurements
LEOS '95. IEEE Lasers and Electro-Optics Society 1995 Annual Meeting. 8th Annual Meeting. Conference Proceedings, 2002Now being tested is an airborne IR differential absorption lidar (DIAL) system operating in the 3- to 5-/spl mu/m wavelength region. The system employs two Nd:YAG lasers each pumping a KTiOAsO/sub 4/ (KTA) optical parametric oscillator. The system will be used to measure methane column-content concentrations over regional areas.
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Airborne Differential Absorption Lidar
SPIE Proceedings, 1988Airborne differential absorption lidarPeter RichterTechnical University Budapest, Department of Atomic Physics1521 Budapest, Budafoki ut 8. HungaryABSTRACTThe optical setup of an airborne differential absorption lidar based on optical heterody-ne detection of topographic backscattering of CW tunable CO2 lasers will be shown.
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Airborne LiDAR in Mountain Archaeology
Abstract Airborne LiDAR, or airborne Light Detection and Ranging, is a remote sensing technique that measures, among other things, the terrain elevation. In the past two decades, it has become an indispensable component of landscape archaeology, especially for archaeological prospection.Lozić, Edisa, Štular, Benjamin
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Estimation of Forest LAI Using Discrete Airborne LiDAR: A Review
Remote Sensing, 2021Yonghua Qu, Jianbo Qi
exaly