Journal ArticleDOI
Hyperspectral discrimination of tropical rain forest tree species at leaf to crown scales
TLDR
In this paper, the authors investigated the utility of high spectral and spatial resolution imagery for the automated species-level classification of individual tree crowns (ITCs) in a tropical rain forest (TRF).About:
This article is published in Remote Sensing of Environment.The article was published on 2005-06-30. It has received 714 citations till now. The article focuses on the topics: Multispectral pattern recognition & Hyperspectral imaging.read more
Citations
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Journal ArticleDOI
Semi-Supervised Hyperspectral Subspace Learning Based on a Generalized Eigenvalue Problem for Regression and Dimensionality Reduction
TL;DR: The proposed semi-supervised regression and dimensionality reduction methods for hyperspectral subspace learning that utilize abundant unlabeled data and a small number of labeled data demonstrate much better performances in terms of both regression anddimensionality reduction than the alternative supervised and unsupervised methods.
Journal ArticleDOI
Valuation of growing stock using multisource GIS data, a stem quality database, and bucking simulation
TL;DR: A method is presented here for assessing the value of harvestable timber stands based on their product yield and can estimate WPC for pulpwood and sawlogs with root mean squared errors of 32.7% and 38.5%, respectively, relative to extensive field measurements.
Journal ArticleDOI
Assessing the Effect of Seasonality on Leaf and Canopy Spectra for the Discrimination of an Alien Tree Species, Acacia Mearnsii , From Co-Occurring Native Species Using Parametric and Nonparametric Classifiers
TL;DR: The results of this paper suggest that phenology plays a crucial role in discriminating between A. mearnsii and sampled species and showed the potential of RS to discriminate between the tree and co-occurring plant species.
Journal ArticleDOI
Foliar sampling with an unmanned aerial system (UAS) reveals spectral and functional trait differences within tree crowns1
Anna K. Schweiger,Alexis Lussier Desbiens,Guillaume Charron,Hughes La Vigne,Etienne Laliberté +4 more
TL;DR: In this paper, the best approach for continuously mapping forest canopy traits, which is important for ecosystem and biodiversity assessments, is presented. But, the model is trained with tracer-based models.
Journal ArticleDOI
Assessing productivity of vegetation in the Amazon using remote sensing and modelling
K. A. Luus,Richard Kelly +1 more
TL;DR: In this paper, the authors analyse the following strategies used to assess productivity of vegetation: (1) measuring LAI and fPAR; (2) calculating band ratios representing soil and vegetation stresses; and (3) modelling net primary productivity.
References
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Book
Using multivariate statistics
TL;DR: In this Section: 1. Multivariate Statistics: Why? and 2. A Guide to Statistical Techniques: Using the Book Research Questions and Associated Techniques.
Journal ArticleDOI
Pattern Classification and Scene Analysis.
Book
Pattern classification and scene analysis
Richard O. Duda,Peter E. Hart +1 more
TL;DR: In this article, a unified, comprehensive and up-to-date treatment of both statistical and descriptive methods for pattern recognition is provided, including Bayesian decision theory, supervised and unsupervised learning, nonparametric techniques, discriminant analysis, clustering, preprosessing of pictorial data, spatial filtering, shape description techniques, perspective transformations, projective invariants, linguistic procedures, and artificial intelligence techniques for scene analysis.
Journal ArticleDOI
A new method for non-parametric multivariate analysis of variance
TL;DR: In this article, a non-parametric method for multivariate analysis of variance, based on sums of squared distances, is proposed. But it is not suitable for most ecological multivariate data sets.
Journal ArticleDOI
Extinction risk from climate change
Chris D. Thomas,Alison Cameron,Rhys E. Green,Rhys E. Green,Michel Bakkenes,Linda J. Beaumont,Yvonne C. Collingham,Barend F.N. Erasmus,Marinez Ferreira de Siqueira,Alan Grainger,Lee Hannah,Lesley Hughes,Brian Huntley,Albert S. van Jaarsveld,Guy F. Midgley,Lera Miles,Lera Miles,Miguel A. Ortega-Huerta,A. Townsend Peterson,Oliver L. Phillips,Stephen E. Williams +20 more
TL;DR: Estimates of extinction risks for sample regions that cover some 20% of the Earth's terrestrial surface show the importance of rapid implementation of technologies to decrease greenhouse gas emissions and strategies for carbon sequestration.