Results 31 to 40 of about 835 (219)

Endmember Estimation with Maximum Distance Analysis

open access: yesRemote Sensing, 2021
Endmember estimation plays a key role in hyperspectral image unmixing, often requiring an estimation of the number of endmembers and extracting endmembers.
Xuanwen Tao   +5 more
doaj   +1 more source

A New Endmember Preprocessing Method for the Hyperspectral Unmixing of Imagery Containing Marine Oil Spills

open access: yesISPRS International Journal of Geo-Information, 2017
The current methods that use hyperspectral remote sensing imagery to extract and monitor marine oil spills are quite popular. However, the automatic extraction of endmembers from hyperspectral imagery remains a challenge. This paper proposes a data field-
Can Cui   +3 more
doaj   +1 more source

A New Endmember Extraction Method Based on Least Squares

open access: yesCanadian Journal of Remote Sensing, 2022
Endmember extraction is frequently adopted to detect spectrally unique signatures of pure ground materials in hyperspectral imagery. These endmembers are the purest pixels in the HSI data cubes. Every pixel in a HSI data cube can be expressed as a linear
Guangyi Chen, Adam Krzyzak, Shen-En Qian
doaj   +1 more source

A Distributed N-FINDR Cloud Computing-Based Solution for Endmembers Extraction on Large-Scale Hyperspectral Remote Sensing Data

open access: yesRemote Sensing, 2022
In this work, we introduce a novel, distributed version of the N-FINDR endmember extraction algorithm, which is able to exploit computer cluster resources in order to efficiently process large volumes of hyperspectral data.
Victor Andres Ayma Quirita   +2 more
doaj   +1 more source

Evaluating the Relationship Between the Area and Latitude of Large Igneous Provinces and Earth's Long‐Term Climate State

open access: yesGeophysical Monograph Series, Page 153-168., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Yuem Park   +3 more
wiley  

+1 more source

Phase Diagrams of Carbonate Materials at High Pressures, with Implications for Melting and Carbon Cycling in the Deep Earth

open access: yesGeophysical Monograph Series, Page 137-165., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Konstantin Litasov   +3 more
wiley  

+2 more sources

Quadratic Clustering-Based Simplex Volume Maximization for Hyperspectral Endmember Extraction

open access: yesApplied Sciences, 2022
The existence of intra-class spectral variability caused by differential scene components and illumination conditions limits the improvement of endmember extraction accuracy, as most endmember extraction algorithms directly find pixels in the ...
Xiangyue Zhang, Yueming Wang, Tianru Xue
doaj   +1 more source

Comparison of VCA and GAEE algorithms for Endmember Extraction [PDF]

open access: yes2018 IEEE Congress on Evolutionary Computation (CEC), 2018
Endmember Extraction is a critical step in hyperspectral image analysis and classification. It is an useful method to decompose a mixed spectrum into a collection of spectra and their corresponding proportions. In this paper, we solve a linear endmember extraction problem as an evolutionary optimization task, maximizing the Simplex Volume in the ...
Douglas Winston R. S.   +2 more
openaire   +2 more sources

Unsupervised endmember extraction of martian hyperspectral images [PDF]

open access: yes2009 First Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, 2009
In this paper, we try to identify and quantify the chemical species present on the surface of planet Mars with the help of hyperspectral images provided by the instrument OMEGA [1]. For this purpose, we suppose that the spectrum of each pixel is a linear mixture of the spectra of different endmembers.
Bin Luo 0005   +3 more
openaire   +1 more source

A Novel Hyperspectral Endmember Extraction Algorithm Based on Online Robust Dictionary Learning

open access: yesRemote Sensing, 2019
Due to the sparsity of hyperspectral images, the dictionary learning framework has been applied in hyperspectral endmember extraction. However, current endmember extraction methods based on dictionary learning are not robust enough in noisy environments.
Xiaorui Song, Lingda Wu
doaj   +1 more source

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