Zobrazeno 1 - 10
of 7 061
pro vyhledávání: '"Unmixing"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-42 (2024)
Abstract Based on double-compressed sampling, a hyperspectral spectral unmixing algorithm (SU_DCS) is proposed, which could directly complete the endmember extraction and abundance estimation. On the basis of the linear mixed model (LMM), we designed
Externí odkaz:
https://doaj.org/article/cd9f68fea0994785a5e54725d0bd7f51
Autor:
Ruiqi Du, Junying Chen, Youzhen Xiang, Ru Xiang, Xizhen Yang, Tianyang Wang, Yujie He, Yuxiao Wu, Haoyuan Yin, Zhitao Zhang, Yinwen Chen
Publikováno v:
International Soil and Water Conservation Research, Vol 12, Iss 3, Pp 726-740 (2024)
Soil salinization and water scarcity are main restrictive factors for irrigated agriculture development in arid regions. Knowing dynamics of soil water and salt content is an important antecedent in remediating salinized soils and optimizing irrigati
Externí odkaz:
https://doaj.org/article/9bff0c8c29a44b95ad0f4ade18d291f1
Autor:
Longshan Yang, Peng Luo, Zehua Zhang, Yongze Song, Kai Ren, Ce Zhang, Joseph Awange, Peter M. Atkinson, Liqiu Meng
Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 132, Iss , Pp 104068- (2024)
Aerosols are crucial constituents of the atmosphere, with significant impacts on air quality. Aerosol optical depth (AOD) is critical in assessing solar resources and modeling sky radiance. However, comprehensive aerosol studies at a continental scal
Externí odkaz:
https://doaj.org/article/b514d4f6b7f64a788f8abfc13a47c403
Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 131, Iss , Pp 103989- (2024)
Excessive nitrogen and phosphorus (N/P) input is the important reason for lake eutrophication, a widespread environmental problem that harms freshwater ecosystems worldwide. Land use land cover changes (LULCCs) strongly affect the migration and trans
Externí odkaz:
https://doaj.org/article/46caddc8cc8e46df872e7d3d5393ec05
Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 130, Iss , Pp 103901- (2024)
Various improved nonnegative matrix factorization (NMF) methods have been widely used in spectral unmixing (SU), including nonlinear versions to counter for the lower spatial resolution and interaction between materials. But the obtained abundances a
Externí odkaz:
https://doaj.org/article/e154f05c80734e39a8e50008a7c96961
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 15746-15760 (2024)
The pervasive presence of mixed pixels in hyperspectral remote sensing imagery poses a substantial constraint on the quantitative progress of remote sensing technology. Hyperspectral unmixing (HU) techniques serve as effective means to address this i
Externí odkaz:
https://doaj.org/article/87c406cb9b2a43128b362679e3d5c545
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 9533-9548 (2024)
Hyperspectral unmixing (HU), an essential procedure for various environmental applications, has garnered significant attention within remote sensing communities. Among different groups of HU methods, nonnegative matrix factorization (NMF)-based ones
Externí odkaz:
https://doaj.org/article/a00de170383941be949b567ea6f4ca32
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 9628-9644 (2024)
The purpose of hyperspectral unmixing (HU) is to extract the spectral signatures and their proportion fractions from the hyperspectral remote sensing image (HSIs), which is a crucial issue in HSIs processing. Recently, nonnegative tensor factorizatio
Externí odkaz:
https://doaj.org/article/de5916551f184792ae306aa1cc418cfa
Autor:
Liliana Granados-Castro, Omar Gutierrez-Navarro, Aldo Rodrigo Mejia-Rodriguez, Daniel Ulises Campos-Delgado
Publikováno v:
IEEE Open Journal of Signal Processing, Vol 5, Pp 101-111 (2024)
Noninvasive methods for assessing in-vivo skin blood perfusion parameters, such as hemoglobin oxygenation, are crucial for diagnosing and monitoring microvascular diseases. This approach is particularly beneficial for patients with compromised skin,
Externí odkaz:
https://doaj.org/article/ecd1f7b590be41d692864a11f7637190