Results 21 to 30 of about 9,721 (245)

A Local Potential-Based Clustering Algorithm for Unsupervised Hyperspectral Band Selection

open access: yesIEEE Access, 2019
Unsupervised band selection plays an increasingly important role in a hyperspectral image (HSI) classification because of inadequate labeling samples.
Zhaokui Li   +5 more
doaj   +1 more source

Methodology for determining deforestation areas in Lviv region using remote sensing data [PDF]

open access: yesAdvances in Geodesy and Geoinformation, 2022
The object of the study is the processing of space images on the territory of the Carpathian territory in the Lviv region, obtained from the Landsat-8 satellite. The work aims to determine the area of deforestation in the Carpathian territory of the Lviv
Borys Chetverikov   +3 more
doaj   +1 more source

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   +1 more source

Unsupervised Band Selection for Hyperspectral Imagery Classification Without Manual Band Removal

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2012
The rich information available in hyperspectral imagery has provided significant opportunities for material classification and identification. Due to the problem of the “curse of dimensionality” (called Hughes phenomenon) posed by the high number of spectral channels along with small amounts of labeled training samples, dimensionality reduction is a ...
Sen Jia 0001   +3 more
openaire   +1 more source

High Throughput Multispectral Image Processing with Applications in Food Science. [PDF]

open access: yesPLoS ONE, 2015
Recently, machine vision is gaining attention in food science as well as in food industry concerning food quality assessment and monitoring. Into the framework of implementation of Process Analytical Technology (PAT) in the food industry, image ...
Panagiotis Tsakanikas   +2 more
doaj   +1 more source

Unsupervised Band Selection in Hyperspectral Images using Autoencoder [PDF]

open access: yes9th International Conference on Pattern Recognition Systems (ICPRS 2018), 2018
Hyperspectral images provide fine details of the observed scene from the exploitation of contiguous spectral bands. However, the high dimensionality of hyperspectral images causes a heavy burden on processing. Therefore, a common practice that has been largely adopted is the selection of bands before processing.
Habermann, Mateus   +2 more
openaire   +2 more sources

Spatial Sampling and Grouping Information Entropy Strategy Based on Kernel Fuzzy C-Means Clustering Method for Hyperspectral Band Selection

open access: yesRemote Sensing, 2022
The high spectral resolution of hyperspectral images (HSIs) provides rich information but causes data redundancy, which imposes a computational burden on practical applications.
Zhou Zhang   +5 more
doaj   +1 more source

Spatial residual clustering and entropy based ranking for hyperspectral band selection

open access: yesEuropean Journal of Remote Sensing, 2020
Though the Hyper-spectral images (HSI) are associated with rich spectral information for discriminating the class-specific objects, the high dimensional data generates Hughes effect for additional processing. So, during pre-processing, band Selection (BS)
Kishore Raju K.   +2 more
doaj   +1 more source

A Comparative Study of Water Indices and Image Classification Algorithms for Mapping Inland Surface Water Bodies Using Landsat Imagery

open access: yesRemote Sensing, 2020
A comparative study of water indices and image classification algorithms for mapping inland water bodies using Landsat imagery was carried out through obtaining 24 high-resolution (≤5 m) and cloud-free images archived in Google Earth with the same (or ±1
Feifei Pan, Xiaohuan Xi, Cheng Wang
doaj   +1 more source

Deciphering transcriptional plasticity in pancreatic ductal adenocarcinoma reveals alterations in sensory neuron innervation

open access: yesMolecular Oncology, EarlyView.
Pancreatic sensory neurons innervating healthy and PDAC tissue were retrogradely labeled and profiled by single‐cell RNA sequencing. Tumor‐associated innervation showed a dominant neurofilament‐positive subtype, altered mitochondrial gene signatures, and reduced non‐peptidergic neurons.
Elena Genova   +14 more
wiley   +1 more source

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