Results 1 to 10 of about 9,721 (245)

Unsupervised Cluster-Wise Hyperspectral Band Selection for Classification

open access: yesRemote Sensing, 2022
A hyperspectral image provides fine details about the scene under analysis, due to its multiple bands. However, the resulting high dimensionality in the feature space may render a classification task unreliable, mainly due to overfitting and the Hughes ...
Mateus Habermann   +2 more
doaj   +4 more sources

An Unsupervised Band Selection Method via Contrastive Learning for Hyperspectral Images

open access: yesRemote Sensing, 2023
Band selection (BS) is an efficacious approach to reduce hyperspectral information redundancy while preserving the physical meaning of hyperspectral images (HSIs).
Xiaorun Li   +3 more
doaj   +4 more sources

Unsupervised Band Selection Method Based on Importance-Assisted Column Subset Selection [PDF]

open access: yesIEEE Access, 2019
Band selection is an important preprocessing technique for hyperspectral images to select a band subset with representative information and low correlation. However, most methods focus on removing redundant components without loss of original information,
Xiaoyan Luo   +3 more
doaj   +2 more sources

Interband Consistency-Driven Structural Subspace Clustering for Unsupervised Hyperspectral Band Selection [PDF]

open access: yesSensors
In the classification applications of hyperspectral remote sensing images (HSIs), band selection is crucial for mitigating the curse of dimensionality while preserving the intrinsic physical information within HSIs.
Zengke Wang, Wenhong Wang
doaj   +2 more sources

Unsupervised Hyperspectral Band Selection via Multimodal Evolutionary Algorithm and Subspace Decomposition

open access: yesSensors, 2023
Unsupervised band selection is an essential task to search for representative bands in hyperspectral dimension reduction. Most of existing studies utilize the inherent attribute of hyperspectral image (HSI) and acquire single optimal band subset while ...
Yunpeng Wei   +3 more
doaj   +3 more sources

Unsupervised Hyperspectral Band Selection Using Spectral–Spatial Iterative Greedy Algorithm [PDF]

open access: yesSensors
Hyperspectral band selection (BS) is an important technique to reduce data dimensionality for the classification applications of hyperspectral remote sensing images (HSIs). Recently, searching-based BS methods have received increasing attention for their
Xin Yang, Wenhong Wang
doaj   +2 more sources

Rapid FTIR Spectral Fingerprinting of Kidney Allograft Perfusion Fluids Distinguishes DCD from DBD Donors: A Pilot Machine Learning Study [PDF]

open access: yesMetabolites
Background/Objectives: Rapid, objective phenotyping of donor kidneys is needed to support peri-implant decisions. Label-free Fourier-transform infrared (FTIR) spectroscopy of static cold-storage Celsior® perfusion fluid can discriminate kidneys recovered
Luis Ramalhete   +7 more
doaj   +2 more sources

Unsupervised hyperspectral band selection by combination of unmixing and sequential clustering techniques

open access: yesEuropean Journal of Remote Sensing, 2019
Selecting the decisive spectral bands is a key issue in unsupervised hyperspectral band selection techniques. These methods are the most popular ways for dimensionality reduction of original data.
Sarra Ikram Benabadji   +5 more
doaj   +2 more sources

Unsupervised Hyperspectral Band Selection Using Graphics Processing Units

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2011
The high dimensionality of hyperspectral imagery challenges image processing and analysis. Band selection is a common technique for dimensionality reduction. When the desired object information is unknown, an unsupervised band selection approach is employed to select the most distinctive and informative bands.
Qian Du
exaly   +2 more sources

Multiobjective Optimization-Based Hyperspectral Unsupervised Band Selection for Anomaly Detection

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Band selection (BS) is a critical topic in hyperspectral image dimensionality reduction, focusing on identifying representative bands that can convey the essential information of the full bands without significant loss.
Shihui Liu   +4 more
doaj   +2 more sources

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