Results 21 to 30 of about 23,100 (259)

Representative Band Selection for Hyperspectral Image Classification

open access: yesISPRS International Journal of Geo-Information, 2018
The high dimensionality of hyperspectral images (HSIs) brings great difficulty for their later data processing. Band selection, as a commonly used dimension reduction technique, is the selection of optimal band combinations from the original bands, while
Fuding Xie   +3 more
doaj   +1 more source

EXTRACTION OF OPTIMAL SPECTRAL BANDS USING HIERARCHICAL BAND MERGING OUT OF HYPERSPECTRAL DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Spectral optimization consists in identifying the most relevant band subset for a specific application. It is a way to reduce hyperspectral data huge dimensionality and can be applied to design specific superspectral sensors dedicated to specific land ...
A. Le Bris   +3 more
doaj   +1 more source

Hyperspectral imagery visualization using band selection

open access: yes2012 4th Workshop on Hyperspectral Image and Signal Processing (WHISPERS), 2012
This paper investigates hyperspectral image display based on selection of three spectral channels to build a red-green-blue (RGB) composite. A series of band selection algorithms are implemented and compared for this purpose. In particular, three color composition schemes based on visualization-oriented spectral segmentations are proposed.
Hongjun Su, Qian Du, Peijun Du
openaire   +1 more source

Mixed-Noise Band Selection for Hyperspectral Images

open access: yesIEEE Access, 2020
Hyperspectral images (HSIs) with abundant spectral information are generally susceptible to various types of noise, such as Gaussian noise and stripe noise.
Zhen Li, Chenwei Deng, Yun Huang
doaj   +1 more source

Customizing kernel functions for SVM-based hyperspectral image classification [PDF]

open access: yes, 2008
Previous research applying kernel methods such as support vector machines (SVMs) to hyperspectral image classification has achieved performance competitive with the best available algorithms.
Baofeng Guo   +4 more
core   +2 more sources

Exploiting Structural Complexity for Robust and Rapid Hyperspectral Imaging [PDF]

open access: yes, 2013
This paper presents several strategies for spectral de-noising of hyperspectral images and hypercube reconstruction from a limited number of tomographic measurements.
Aeron, Shuchin   +2 more
core   +1 more source

Effect of Denoising in Band Selection for Regression Tasks in Hyperspectral Datasets [PDF]

open access: yes, 2013
This paper presents a comparative analysis of six band selection methods applied to hyperspectral datasets for biophysical variable estimation problems, where the effect of denoising on band selection performance has also been analyzed. In particular,
Bioucas-Dias, José   +4 more
core   +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

A novel semi-fragile forensic watermarking scheme for remote sensing images [PDF]

open access: yes, 2011
Peer-reviewedA semi-fragile watermarking scheme for multiple band images is presented. We propose to embed a mark into remote sensing images applying a tree structured vector quantization approach to the pixel signatures, instead of processing each band ...
Aiazzi B.   +24 more
core   +1 more source

Hyperspectral classification of Cyperus esculentus clones and morphologically similar weeds [PDF]

open access: yes, 2020
Cyperus esculentus (yellow nutsedge) is one of the world's worst weeds as it can cause great damage to crops and crop production. To eradicate C. esculentus, early detection is key-a challenging task as it is often confused with other Cyperaceae and ...
Cool, Simon R.   +4 more
core   +1 more source

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