نتایج جستجو برای: spectral spatial information

تعداد نتایج: 1581360  

Journal: :IEEE Transactions on Wireless Communications 2022

This paper focuses on the spatial-spectral terahertz (THz) networks, where transmitters equipped with leaky-wave antennas send information to their receivers at THz frequency bands. As a directional and nearly planar antenna, antenna allows for transmissions narrow beams high gains. The conventional large arrays are confronted challenging issues such as scaling limits path discovery in frequenc...

Journal: :Computers in Industry 2013
Jiuai Sun Melvyn L. Smith

Human skin, the outer and largest organ covering our body, can be described in terms of both its 3D spatial topography and its 2D spectral reflectance. Such a characterization normally requires the application of separate procedures using different kinds of equipment, where spectral reflectance can only be obtained from a small patch of the skin surface. This paper investigates the integration ...

Journal: :CoRR 2016
Joan Duran Antoni Buades Bartomeu Coll Catalina Sbert Gwendoline Blanchet

Most satellites decouple the acquisition of a panchromatic image at high spatial resolution from the acquisition of a multispectral image at lower spatial resolution. Pansharpening is a fusion technique used to increase the spatial resolution of the multispectral data while simultaneously preserving its spectral information. In this paper, we consider pansharpening as an optimization problem mi...

Journal: :ISPRS Int. J. Geo-Information 2017
Long Guo Yiyun Chen Tiezhu Shi Chang Zhao Yaolin Liu Shanqin Wang Haitao Zhang

Soil organic carbon stock plays a key role in the global carbon cycle and the precision agriculture. Visible and near-infrared reflectance spectroscopy (VNIRS) can directly reflect the internal physical construction and chemical substances of soil. The partial least squares regression (PLSR) is a classical and highly commonly used model in constructing soil spectral models and predicting soil p...

Journal: :IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 2015

2010
Yong Ge Chi Zhang Hexiang Bai

This paper presents a method named CCSSM (Classification of Combining Spectral information and Spatial information upon Multiple-point statistics) which is the derivation of two probability fields from the supervised classification for the spectral extraction and multiple-point simulation (MPS) for the spatial information, which then are fused. The performance of CCSSM for two-class classificat...

2006
Ryota Tomioka Guido Dornhege Guido Nolte Kazuyuki Aihara Klaus-Robert Müller

We propose a novel spectral filter optimization algorithm for the single trial ElectroEncephaloGraphy (EEG) classification problem. The algorithm is designed to improve the classification accuracy of Common Spatial Pattern (CSP) based classifiers. The algorithm is based on a simple statistical criterion, and allows the user to incorporate any prior information one has about the spectrum of the ...

2008

The fusion of high-spectral but low spatial resolution multispectral and low-spectral but high spatial resolution panchromatic satellite images is a very useful technique in various remote sensing applications. Recently, some studies showed that wavelet-based image fusion methods provide a high quality spectral content of fused images. However, the spatial resolution of waveletbased fused image...

Journal: :EURASIP J. Adv. Sig. Proc. 2012
Riad Khelifi Mouloud Adel Salah Bourennane

Various approaches have been proposed in the literature for texture characterization of images. Some of them are based on statistical properties, others on fractal measures and some more on multi-resolution analysis. Basically, these approaches have been applied on mono-band images. However, most of them have been extended by including the additional information between spectral bands to deal w...

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