Results 31 to 40 of about 105,347 (307)

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

Harmonizing ground and UAV hyperspectral data: A novel spectral correction method for maximizing estimation models and datasets of ground hyperspectral

open access: yesSmart Agricultural Technology
The accurate and effective monitoring of rice nitrogen status using hyperspectral datasets and estimation models is important for precision agriculture and intelligent breeding.
Zhonglin Wang   +11 more
doaj   +1 more source

Robust Linear Spectral Unmixing using Anomaly Detection

open access: yes, 2015
This paper presents a Bayesian algorithm for linear spectral unmixing of hyperspectral images that accounts for anomalies present in the data. The model proposed assumes that the pixel reflectances are linear mixtures of unknown endmembers, corrupted by ...
Altmann, Yoann   +2 more
core   +1 more source

A low-cost hyperspectral scanner for natural imaging and the study of animal colour vision above and under water [PDF]

open access: yes, 2019
Hyperspectral imaging is a widely used technology for industrial and scientific purposes, but the high cost and large size of commercial setups have made them impractical for most basic research.
Baden, T, Nevala, N E
core   +1 more source

Volume Holographic Hyperspectral Imaging [PDF]

open access: yesApplied Optics, 2004
A volume hologram has two degenerate Bragg-phase-matching dimensions and provides the capability of volume holographic imaging. We demonstrate two volume holographic imaging architectures and investigate their imaging resolution, aberration, and sensitivity.
Wenhai, Liu   +2 more
openaire   +2 more sources

Single hyperspectral image super-resolution using a progressive upsampling deep prior network

open access: yesElectronic Research Archive
Hyperspectral image super-resolution (SR) aims to enhance the spectral and spatial resolution of remote sensing images, enabling more accurate and detailed analysis of ground objects.
Haijun Wang   +5 more
doaj   +1 more source

PANSHARPENING OF HYPERSPECTRAL IMAGES IN URBAN AREAS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Pansharpening has proven to be a valuable method for resolution enhancement of multi-band images when spatially high-resolving panchromatic images are available in addition. In principle, pansharpening can beneficially be applied to hyperspectral images
C. Chisense   +3 more
doaj   +1 more source

A New Vegetation Index in Short-Wave Infrared Region of Electromagnetic Spectrum

open access: yesIEEE Access, 2021
Vegetation index algorithms based on radiance and/or reflectance data in the Visible Near Infrared (VNIR) band are created for multispectral and hyperspectral images to detect vegetation.
Yucel Cimtay   +3 more
doaj   +1 more source

Plugin procedure in segmentation and application to hyperspectral image segmentation

open access: yes, 2010
In this article we give our contribution to the problem of segmentation with plug-in procedures. We give general sufficient conditions under which plug in procedure are efficient. We also give an algorithm that satisfy these conditions.
Girard, R.
core   +3 more sources

Linear vs Nonlinear Extreme Learning Machine for Spectral-Spatial Classification of Hyperspectral Image [PDF]

open access: yes, 2017
As a new machine learning approach, extreme learning machine (ELM) has received wide attentions due to its good performances. However, when directly applied to the hyperspectral image (HSI) classification, the recognition rate is too low. This is because
Cao, Faxian   +4 more
core   +3 more sources

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