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Hyperspectral remote sensing of foliar nitrogen content
(National Academy of Sciences, 2012)
A strong positive correlation between vegetation canopy bidirectional reflectance factor (BRF) in the near infrared (NIR) spectral
region and foliar mass-based nitrogen concentration (%N) has
been reported in some temperate ...
Geostatistical methods to identify and map spatial variations of soil salinity
(Elsevier, 2011-01)
The problem of estimating and predicting spatial distribution of a spatial stochastic process, observed at irregular locations in space, is considered in this paper. Environmental variables usually show spatial dependencies ...
Spatial recurrences for pedestrian classification
(Springer U.S., 2012-09)
In this work, a framework is proposed for pedestrian classification based on spatial recurrences in the form of recurrence plots. This representation is more general and potentially more discriminative than a histogram of ...
Experimental Demonstration of the Quasi-Direct Space-to-Time Pulse Shaping Principle
(Institute of Electrical and Electronics Engineers (IEEE), 2012)
A new strategy of pulse shaping based on the
quasi-direct space-to-time (QDST) conversion principle has
been recently proposed theoretically [Mínguez-Vega et al., Opt.
Express 16, 16993 (2008)]. In this letter, the ...
The space-bandwidth product in the join ttransform correlator optical encryption setup
(Elsevier, 2011)
In this work we study the joint transform correlator (JTC) optical encryption setup through the Wigner function. We found analytical expressions for the spatial and spatial frequency extent of the encrypted signal. Since ...
Managing user-generated information in geospatial cyberinfrastructures
(Elsevier, 2011)
Information systems built using standards-based distributed services have become the default computing paradigm adopted by the geospatial community for building information infrastructures also known as Spatial Data ...
Free-Motion Beam Propagation Factor Measurement by Means of a Liquid Crystal Spatial Light Modulator
(Institute of Electrical and Electronics Engineers, 2012)
In contrast to the mechanical scanning procedure
described in the standard ISO/DIS 11146, the use of electronically tunable focal length lenses has proved its capability for the
measurement of the laser beam propagation ...
Multispectral integral imaging acquisition and processing using a monochrome camera and a liquid crystal tunable filter
(Optical Society of America, 2012)
This paper presents an acquisition system and a procedure to capture 3D scenes in different spectral bands. The acquisition system is formed by a monochrome camera, and a Liquid Crystal Tunable Filter (LCTF) that allows ...
Frequency Stability Requirements in Quasi-Integer-Ratio Time-Expanded Phase-Sensitive OTDR
(IEEE, 2023-01-15)
Time-expanded phase sensitive (TE-ϕ)OTDR is a recently reported technique for distributed fiber sensing that relies on the use of an electro-optic dual frequency comb (DFC) scheme. A distinctive feature of this approach ...
Reminiscence interventions for loneliness reduction in older adults: a systematic review
(Taylor and Francis Group, 2024)
Objectives:
This study aims to review the use of reminiscence interventions in the reduction of loneliness in older adults by categorising the interventions by type, and comparing their effectiveness and methodological ...