Results 131 to 140 of about 16,908 (163)
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2007
There is an increasing need for accurate forest inventories to assist forest managers and decision makers in the planning of the forest resources. Airborne LiDAR methods enable the construction of Tree Canopy Models (TCM) at a fine resolution, which allow the delineation of individual tree crowns.
Rafael García +2 more
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There is an increasing need for accurate forest inventories to assist forest managers and decision makers in the planning of the forest resources. Airborne LiDAR methods enable the construction of Tree Canopy Models (TCM) at a fine resolution, which allow the delineation of individual tree crowns.
Rafael García +2 more
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Characterisation and mapping of forest communities by clustering individual tree crowns
Remote Sensing of Environment, 2010For many years, the classification of forest communities and their associated species from airborne data (primarily aerial photography) has largely been through manual interpretation. With the development of digital imagery, options for delineating individual crowns and identifying these to species have become available but automated techniques for ...
Peter Bunting +3 more
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Delineation of individual tree crowns for mobile laser scanning data
SPIE Proceedings, 2016The information of individual trees plays an important role in urban surveying and mapping. With the development of Light Detection and Ranging (LiDAR) technology, 3-Dimenisonal (3D) structure of trees can be generated in point clouds with high spatial resolution and accuracy.
Rosen Wu +4 more
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Individual Tree Segmentation Based on Mean Shift and Crown Shape Model for Temperate Forest
IEEE Geoscience and Remote Sensing Letters, 2021Light detection and ranging (LiDAR) provides high-resolution geometric information for monitoring forests at individual tree crown (ITC) level. An important task for ITC delineation is segmentation, and previous studies showed that the adaptive 3-D mean shift (AMS3D) algorithm provides effective results.
Eduardo Tusa +5 more
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Plant Ecology
Functional traits offer insights into plant performance. However, linking traits to individual tree performance requires considering the overall phenotypic context and utilizing traits measured at the individual level. Tree growth rates are informative metrics about performance, however how it is measured provides different information on tree or ...
Joice Klipel +5 more
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Functional traits offer insights into plant performance. However, linking traits to individual tree performance requires considering the overall phenotypic context and utilizing traits measured at the individual level. Tree growth rates are informative metrics about performance, however how it is measured provides different information on tree or ...
Joice Klipel +5 more
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Structure-Preserving Segmentation of Individual Tree Crowns by Brownian Motion
2003A fast, simple and easy to implement segmentation method is presented. A particle is walking in the image in the fashion of a Brownian motion to create the segments. Using this method, it is possible to segment the image and find the inner structure of the segment at the same time. The inner structure could be useful for further analysis.
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Multiecho-Recording Mobile Laser Scanning for Enhancing Individual Tree Crown Reconstruction
IEEE Transactions on Geoscience and Remote Sensing, 2012This paper presents a novel attempt at combining the mobile mapping mode and a multiecho-recording laser scanner, as well as a new methodology based on the resulting single-scan point clouds, for enhancing the integrity of individual tree crown reconstruction.
Yi Lin 0002, Juha Hyyppä
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Identification of individual tree crowns from satellite image and image-to-map rectification
2007 IEEE International Geoscience and Remote Sensing Symposium, 2007In forest area, there are few landmarks to be ground control points (GCPs) used for registration of satellite images or maps. Additionally, geographic information from the Global Positioning System (GPS) in field measurement survey is insufficient accuracy to identify individual tree crowns from satellite image.
Mamoru Kubo +3 more
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The role of tree diversity for individual tree growth, crown architecture and branch demography
2012In the light of the concurrent loss of biodiversity, biodiversity and ecosystem functioning (BEF) research attracted a great deal of attention and emerged as one of the important fields of research in ecology. Since important ecological interactions such as competition occur between individuals, the understanding of individual tree growth was ...
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Identification and delineation of individual tree crowns using Lidar and multispectral data fusion
2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015The aim of this study is to propose and evaluate methodology for identification and delineation of individual tree crowns, using Lidar and multispectral data fusion. Methods implementing data fusion are based on image binarization (thresholding) and region growing segmentation algorithm.
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