Results 1 to 10 of about 2,215,341 (299)
Hyperspectral and Multispectral Image Fusion with Automated Extraction of Image-Based Endmember Bundles and Sparsity-Based Unmixing to Deal with Spectral Variability [PDF]
Sensors, 2023 The aim of fusing hyperspectral and multispectral images is to overcome the limitation of remote sensing hyperspectral sensors by improving their spatial resolutions.
Salah Eddine Brezini, Yannick Deville
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Spectral Variability of FSRQs [PDF]
Journal of Astrophysics and Astronomy, 2011 The optical variability of 29 flat spectrum radio quasars in SDSS Stripe 82 region are investigated by using DR7 released multi-epoch data. All FSRQs show variations with overall amplitude ranging from 0.24 mag to 3.46 mag in different sources. About half of FSRQs show a bluer-when-brighter trend, which is commonly observed for blazars.
Minfeng Gu, Y. L. Ai
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Reducing the Effect of the Endmembers’ Spectral Variability by Selecting the Optimal Spectral Bands
Remote Sensing, 2017 Variable environmental conditions cause different spectral responses of scene endmembers. Ignoring these variations affects the accuracy of fractional abundances obtained from linear spectral unmixing. On the other hand, the correlation between the bands
Omid Ghaffari +2 more
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Spectral Variability in a Multilinear Mixing Model [PDF]
IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018 We present a new method for spectral unmixing which takes both nonlinear mixing and spectral variability into account. This is accomplished by combining the multiple endmember spectral mixture analysis (MESMA) approach with the recently developed multilinear mixing model (MLM).
Thorvald Dox +2 more
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Spectral Variability in Radio-Loud Quasars [PDF]
Journal of Astrophysics and Astronomy, 2014 5 pages, 3 figures, accepted to JApA, conference proceeding paper for Variability of Blazars - From Jansky to Fermi (VBJF), Dec.
Gu, Minfeng
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Spectral analysis of heart period variability in anorexia nervosa [PDF]
Vojnosanitetski Pregled, 2005 The aim of this study was to investigate the response of autonomic cardiac control to postural change using spectral analysis, in patients with anorexia nervosa.
Platiša Mirjana M. +2 more
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Remote Sensing, 2023 In hyperspectral unmixing (HU), spectral variability in hyperspectral images (HSIs) is a major challenge which has received a lot of attention over the last few years.
Burkni Palsson +2 more
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Modern spectral analysis in HF radar remote sensing. [PDF]
, 1998 High-Frequency (HF) radar systems are currently used to collect wave data. By applying spectral analysis methods, such as the Fast Fourier Transform (FFT) method, to the radar backscatter from the ocean surface, the so-called Doppler spectrum is ...
Vizinho, A., Vizinho, A
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Identify Informative Bands for Hyperspectral Target Detection Using the Third-Order Statistic
Remote Sensing, 2021 Constrained energy minimization (CEM) has been proposed and widely researched in the field of hyperspectral target detection. Generally, it selects one of the target spectra as the representative and then keeps its output constant while minimizing the ...
Xiurui Geng, Lei Wang, Luyan Ji
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Spectral Line Depth Variability in Radial Velocity Spectra [PDF]
, 2022 Stellar active regions, including spots and faculae, can create radial velocity (RV) signals that interfere with the detection and mass measurements of low mass exoplanets.
Plavchan, Peter +10 more
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