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Uncertainty in lidar derived canopy height models in three unique forest ecosystems
2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017NEON conducts annual LiDAR flights over several ecologically unique sites within the continental United States. One of the products derived from the LiDAR acquisitions is a canopy height model (CHM), required to make inferences about vegetation structure and annual changes in growth.
Tristan Goulden +2 more
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Accurate modelling of mountainous vegetation canopy reflectance is crucial for quantitative remote sensing, yet remains challenging due to the coupled effects of complex topography and canopy structural heterogeneity. While existing slope-adaptive canopy bidirectional reflectance distribution function (BRDF) models improve accuracy through refined ...
Weihua Li +5 more
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Weihua Li +5 more
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Optimization of Canopy Height Model Generation Parameters for Precise Forestry
Photogrammetric Engineering & Remote SensingThe usage of photogrammetric technologies is essential in the concept of precise forestry. Dense unmanned laser scanning (ULS) point clouds are the innovative and precise data source for canopy height model (CHM) generation. It is necessary to choose the CHM generation method and its settings appropriately.
Anna Płatek-Żak +6 more
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Use of UAVs and Canopy Height Model Applied on a Time Scale in the Vineyard
2020Among the main objectives of “Precision Farming”, there is a more rational use of plant protection products, including a better application in the field. The benefits that can be achieved are various: from best product quality and reduced costs, up to an increase in productivity with considerable advantages both from an economic point of view and in ...
Ghiani, L. +5 more
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Concert hall canopy height comparison and computer model resolution efficacy
The Journal of the Acoustical Society of America, 2007This line of inquiry is twofold: (1) It uses computer modeling to compare the height of an adjustable concert hall ceiling canopy with established room acoustics metrics, and (2) It does so simultaneously with two computer models, one at a rough resolution, and one at a resolved resolution.
Michael Ermann +1 more
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Modeling canopy height in a savanna ecosystem using spaceborne lidar waveforms
Remote Sensing of Environment, 2014Although savanna ecosystems cover about 20% of the terrestrial land surface and can have productivity equal to some closed forests, their role in the global carbon cycle is poorly understood. As a result, these ecosystems are globally more important than generally appreciated in the earth observation and modeling communities.
David Gwenzi, Michael Andrew Lefsky
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Bayesian model averaging of AI models for the high resolution mapping of the forest canopy height
The development of high resolution mapping models of forest attributes based on employing machine or deep learning techniques has increasingly accelerated in the last couple of years. The consequence of this is the widespread availability of multiple sources of information, which can either lead to a potential confusion, or to a ...Besic, Nikola +6 more
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Forest Stand Height Estimation By Inversion Of Polarimetric Canopy Scattering Models
2021 IEEE International India Geoscience and Remote Sensing Symposium (InGARSS), 2021Faseela V. Sainuddin +3 more
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