Multivariate Calibration

Comparison of Portable and Bench-Top Spectrometers for Mid-Infrared Diffuse Reflectance Measurements of Soils
Mid-infrared (MIR) spectroscopy has received widespread interest as a method to complement traditional soil analysis. Recently …
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Quantification of Soil Properties with Hyperspectral Data: Selecting Spectral Variables with Different Methods to Improve Accuracies and Analyze Prediction Mechanisms
We explored the potentials of both non-imaging laboratory and airborne imaging spectroscopy to assess arable soil quality indicators. …
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Quantification of Soil Variables in a Heterogeneous Soil Region With VIS--NIR--SWIR Data Using Different Statistical Sampling and Modeling Strategies
Estimation accuracies obtained for soil properties from spectroradiometer data markedly depend on the individual sample set. The choice …
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Using Variable Selection and Wavelets to Exploit the Full Potential of Visible--Near Infrared Spectra for Predicting Soil Properties
In soil spectroscopy a series of strategies exists to optimise multivariate calibrations. We explore this issue with a set of topsoil …
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Near-Infrared Spectroscopy (NIRS) Predicts Non-structural Carbohydrate Concentrations in Different Tissue Types of a Broad Range of Tree Species
Summary The allocation of non-structural carbohydrates ( NSC s) to reserves constitutes an important physiological mechanism associated …
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Use of A Portable Camera for Proximal Soil Sensing with Hyperspectral Image Data
In soil proximal sensing with visible and near-infrared spectroscopy, the currently available hyperspectral snapshot camera technique …
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Snapshot Hyperspectral Imaging for Soil Diagnostics -- Results of a Case Study in the Spectral Laboratory
Field reflectance spectroscopy has been widely used in proximal soil sensing. Results of spectroscopic approaches depend, inter alia, …
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