Results 21 to 30 of about 17,773 (259)

Spectral-spatial multi-layer perceptron network for hyperspectral image land cover classification

open access: yesEuropean Journal of Remote Sensing, 2022
This paper proposes a novel spectral-spatial multi-layer perceptron network for hyperspectral image land cover classification. Current deep learning-based methods have limitations in spectral and spatial feature representation of hyperspectral images ...
Xiong Tan, Zhixiang Xue
doaj   +1 more source

Hyperspectral Image Database Query Based on Big Data Analysis Technology [PDF]

open access: yesE3S Web of Conferences, 2021
In this paper, we extract spectral image features from a hyperspectral image database, and use big data technology to classify spectra hierarchically, to achieve the purpose of efficient database matching.
Qi Beixun
doaj   +1 more source

STACKED LOCAL FEATURE DETECTOR FOR HYPERSPECTRAL IMAGE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Images registration is an important task in hyperspectral image processing, while almost all local feature point based image matching algorithm is designed for single band image only and miss the advantage of abundant spectral information.
Z. Yan, Z. Wu
doaj   +1 more source

HYPERSPECTRAL AND MULTISPECTRAL IMAGE FUSION USING FULLY CONSTRAINED NONLINEAR COUPLED NONNEGATIVE MATRIX FACTORIZATION

open access: yesICTACT Journal on Image and Video Processing, 2022
Hyperspectral images (HSI) have a wide range of spectral information compared to conventional images. This rich spectral information leads to store more information about the image.
K Priya, K K Rajkumar
doaj   +1 more source

Design and realization of a miniaturized high resolution computed tomography imaging spectrometer [PDF]

open access: yesEPJ Web of Conferences, 2022
The computed tomography imaging spectrometer (CTIS) is a relatively unknown snapshot hyperspectral camera. It utilizes computational imaging approaches to gain the hyperspectral image from a spatiospectral smeared sensor image.
Amann Simon   +4 more
doaj   +1 more source

Comparison analysis of spatial and spectral feature in vegetation classification based on AVIRIS hyperspectral image

open access: yes智慧农业, 2020
With the development of hyperspectral sensor technology and remote sensing data acquisition platform, the application of hyperspectral data is becoming more and more popular in precision agriculture.
Fu Yuanyuan   +7 more
doaj   +1 more source

MORPHOLOGICAL SEGMENTATION OF HYPERSPECTRAL IMAGES

open access: yesImage Analysis & Stereology, 2011
The present paper develops a general methodology for the morphological segmentation of hyperspectral images, i.e., with an important number of channels. This approach, based on watershed, is composed of a spectral classification to obtain the markers and a vectorial gradient which gives the spatial information. Several alternative gradients are adapted
Noyel, Guillaume   +2 more
openaire   +7 more sources

Image Fusion for Spatial Enhancement of Hyperspectral Image via Pixel Group Based Non-Local Sparse Representation

open access: yesRemote Sensing, 2017
Restricted by technical and budget constraints, hyperspectral images (HSIs) are usually obtained with low spatial resolution. In order to improve the spatial resolution of a given hyperspectral image, a new spatial and spectral image fusion approach via ...
Jing Yang   +3 more
doaj   +1 more source

Discriminative Local Feature for Hyperspectral Hand Biometrics by Adjusting Image Acutance

open access: yesApplied Sciences, 2019
Image acutance or edge contrast in an image plays a crucial role in hyperspectral hand biometrics, especially in the local feature representation phase. However, the study of acutance in this application has not received a lot of attention. Therefore, in
Wei Nie, Bob Zhang, Shuping Zhao
doaj   +1 more source

Real-Time Hardware Acceleration of Recursive Orthogonal Subspace Projection for Automatic Hyperspectral Target Detection

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Orthogonal subspace projection (OSP) is a widely used concept to design hyperspectral imaging techniques for data exploitation. To make OSP-based techniques applicable to real-time processing, computing OSP must be also carried out in real-time.
Minh Quan P. Tran, Chein-I Chang
doaj   +1 more source

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