Results 1 to 10 of about 53,858 (186)

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   +3 more sources

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   +2 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

Robust Unsupervised Hyperspectral Band Selection via Global Affinity Matrix Reconstruction

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Unsupervised band selection is fundamental to alleviate the curse of dimensionality for hyperspectral imagery. Although many research works have been developed, it is still a challenging problem to improve the poor classification performance with a small
Mengbo You   +3 more
doaj   +2 more sources

Unsupervised Hyperspectral Band Selection using Clustering and Single-Layer Neural Network

open access: yesRevue Française de Photogrammétrie et de Télédétection, 2018
Hyperspectral images provide rich  spectral details of the observed scene by exploiting contiguous bands. But, the processing of such images becomes heavy, due to the high dimensionality.
Mateus Habermann   +2 more
doaj   +4 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 Band Selection of Hyperspectral Images via Multi-Dictionary Sparse Representation

open access: yesIEEE Access, 2018
Band selection is a direct and effective method to reduce the spectral dimension, which is one of popular topics in hyperspectral remote sensing. Recently, a number of methods were proposed to deal with the band selection problem.
Fei Li, Pingping Zhang, Lu Huchuan
doaj   +3 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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