Results 41 to 50 of about 1,956 (163)

A Hierarchical Sparsity Unmixing Method to Address Endmember Variability in Hyperspectral Image

open access: yesRemote Sensing, 2018
With a low spectral resolution hyperspectral sensor, the signal recorded from a given pixel against the complex background is a mixture of spectral contents. To improve the accuracy of classification and subpixel object detection, hyperspectral unmixing (
Jinlin Zou, Jinhui Lan, Yang Shao
doaj   +1 more source

Constrained Nonnegative Matrix Factorization for Blind Hyperspectral Unmixing Incorporating Endmember Independence

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Hyperspectral unmixing (HU) has become an important technique in exploiting hyperspectral data since it decomposes a mixed pixel into a collection of endmembers weighted by fractional abundances.
E. M. M. B. Ekanayake   +7 more
doaj   +1 more source

Deep convolutional transformer network for hyperspectral unmixing

open access: yesEuropean Journal of Remote Sensing, 2023
Hyperspectral unmixing (HU) is considered one of the most important ways to improve hyperspectral image analysis. HU aims to break down the mixed pixel into a set of spectral signatures, often commonly referred to as endmembers, and determine the ...
Fazal Hadi   +3 more
doaj   +1 more source

Spectral unmixing of Multispectral Lidar signals [PDF]

open access: yes, 2015
In this paper, we present a Bayesian approach for spectral unmixing of multispectral Lidar (MSL) data associated with surface reflection from targeted surfaces composed of several known materials.
Altmann, Yoann   +2 more
core   +2 more sources

Hyperspectral Unmixing Using Robust Deep Nonnegative Matrix Factorization

open access: yesRemote Sensing, 2023
Nonnegative matrix factorization (NMF) and its numerous variants have been extensively studied and used in hyperspectral unmixing (HU). With the aid of the designed deep structure, deep NMF-based methods demonstrate advantages in exploring the ...
Risheng Huang   +4 more
doaj   +1 more source

Hyperspectral reflectance spectra of floating matters derived from Hyperspectral Imager for the Coastal Ocean (HICO) observations [PDF]

open access: yesEarth System Science Data, 2022
Using data collected by the Hyperspectral Imager for the Coastal Ocean (HICO) on the International Space Station between 2010–2014, hyperspectral reflectance spectra of various floating matters in global oceans and lakes are derived for the spectral ...
C. Hu
doaj   +1 more source

Gradients in urban material composition: A new concept to map cities with spaceborne imaging spectroscopy data [PDF]

open access: yes, 2019
To understand processes in urban environments, such as urban energy fluxes or surface temperature patterns, it is important to map urban surface materials. Airborne imaging spectroscopy data have been successfully used to identify urban surface materials
Feilhauer, Hannes   +3 more
core   +2 more sources

Hyperspectral Unmixing Based on Dual-Depth Sparse Probabilistic Latent Semantic Analysis [PDF]

open access: yes, 2018
This paper presents a novel approach for spectral unmixing of remotely sensed hyperspectral data. It exploits probabilistic latent topics in order to take advantage of the semantics pervading the latent topic space when identifying spectral signatures ...
Fernandez-Beltran, Ruben   +3 more
core   +2 more sources

Spectral Unmixing via Data-guided Sparsity

open access: yes, 2014
Hyperspectral unmixing, the process of estimating a common set of spectral bases and their corresponding composite percentages at each pixel, is an important task for hyperspectral analysis, visualization and understanding.
Fan, Bin   +5 more
core   +1 more source

Nonlinear unmixing of hyperspectral images: Models and algorithms [PDF]

open access: yes, 2013
When considering the problem of unmixing hyperspectral images, most of the literature in the geoscience and image processing areas relies on the widely used linear mixing model (LMM).
Bermudez, José Carlos Moreira   +5 more
core   +8 more sources

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