Results 271 to 280 of about 432,356 (303)
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A MODIS-based vegetation index climatology

SPIE Proceedings, 2011
Passive microwave soil moisture algorithms must account for vegetation attenuation of the signal in the retrieval process. One approach to accounting for vegetation is to use vegetation indices such as the Normalized Difference Vegetation Index (NDVI) to estimate the vegetation optical depth.
R. Bindlish, T. Jackson, T. Zhao
openaire   +1 more source

A generalized soil-adjusted vegetation index

Remote Sensing of Environment, 2002
Operational monitoring of vegetative cover by remote sensing currently involves the utilisation of vegetation indices (VIs), most of them being functions of the reflectance in red (R) and near-infrared (NIR) spectral bands. A generalized soil-adjusted vegetation index (GESAVI), theoretically based on a simple vegetation canopy model, is introduced.
M.A Gilabert   +3 more
openaire   +1 more source

A modified soil adjusted vegetation index

Remote Sensing of Environment, 1994
There is currently a great deal of interest in the quantitative characterization of temporal and spatial vegetation patterns with remotely sensed data for the study of earth system science and global change. Spectral models and indices are being developed to improve vegetation sensitivity by accounting for atmosphere and soil effects. The soil-adjusted
J. Qi   +4 more
openaire   +1 more source

The Vegetation Index and the Study of Vegetation Dynamics

1989
The presentation reviews the basic principles supporting the derivation and analysis of vegetation indices from spectral data. The relationships between the normalized difference vegetation index and the vegetation characteristics is discussed, with emphasis upon dynamic processes important in biomass accumulation. Since time-series of vegetation index
openaire   +1 more source

Spatial Analysis of Hyperspectral Vegetation Index

2009 Reno, Nevada, June 21 - June 24, 2009, 2009
Advanced remote sensing technologies provide researchers an innovative way to collect spatial data in precision agriculture. Sensor information and spatial analysis together allow for a completely understanding of the spatial complexity of a field and its crop.
null Huihui Zhang   +4 more
openaire   +1 more source

A soil-adjusted vegetation index (SAVI)

Remote Sensing of Environment, 1988
Abstract A transformation technique is presented to minimize soil brightness influences from spectral vegetation indices involving red and near-infrared (NIR) wavelengths. Graphically, the transformation involves a shifting of the origin of reflectance spectra plotted in NIR-red wavelength space to account for first-order soil-vegetation interactions
openaire   +1 more source

Vegetation Index Estimation from Monospectral Images

2018
This paper proposes a novel approach to estimate Normalized Difference Vegetation Index (NDVI) from just the red channel of a RGB image. The NDVI index is defined as the ratio of the difference of the red and infrared radiances over their sum. In other words, information from the red channel of a RGB image and the corresponding infrared spectral band ...
Patricia L. Suárez   +2 more
openaire   +1 more source

Patient navigation across the cancer care continuum: An overview of systematic reviews and emerging literature

Ca-A Cancer Journal for Clinicians, 2023
Matthew Tieu   +2 more
exaly  

Radiotheranostics in oncology: Making precision medicine possible

Ca-A Cancer Journal for Clinicians, 2023
Eric Aboagye
exaly  

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