Multispectral images such as multispectral chemical images or multispectral satellite images provide detailed data with information in both the spatial and spectral domains. Many segmentation methods for multispectral images are based on a per-pixel classification, which uses only spectral information and ignores spatial information. A clustering algorithm based on both spectral and spatial inf...

This paper reports on progress made to develop methods to accurately estimate pigment content in forest canopies from airborne hyperspectral data. Radiative transfer approaches and red edge optical indices were applied to twelve sites of Acer saccharum M. in the Algoma Region, Ontario (Canada), where field measurements and hyperspectral CASI reflectance data have been collected between 1997 and...

OBJECTIVE The aim of this study was to compare two screening methods, total score of the Cognitive Abilities Screening Instrument (CASI(T)) and the combined score for the short-term memory and orientation domains (CASI(R)) for screening and grading probable Alzheimer's disease (AD), based on their correlations with voxel-based morphometry (VBM). MATERIALS AND METHODS Forty-five subjects with ...

1. CASIC techniques were introduced at Istat in the 1980s. CATI and CAPI were adopted first; in a second phase, nearly one decade later, the emerging CASI techniques were taken into consideration. As for the advantages of using such new modes of operating in the data collection phase, global explicit results were obtained in terms of cost, quality and timeliness. It should be underlined that th...