نتایج جستجو برای: hyperspectral toolbox

تعداد نتایج: 19978  

2013
Naga S. Annamdevula Brenner Sweat Peter Favreau Ashley S. Lindsey Diego F. Alvarez Thomas C. Rich Silas J. Leavesley

Hyperspectral imaging and analysis approaches offer accurate detection and quantification of fluorescently-labeled proteins and cells in highly autofluorescent tissues. However, selecting optimum acquisition settings for hyperspectral imaging is often a daunting task. In this study, we compared two hyperspectral systems-a widefield system with acoustic optical tunable filter (AOTF) and charge c...

Journal: :Remote Sensing 2018
Jing Zhang Lu Chen Li Zhuo Xi Liang Jiafeng Li

Hyperspectral images are one of the most important fundamental and strategic information resources, imaging the same ground object with hundreds of spectral bands varying from the ultraviolet to the microwave. With the emergence of huge volumes of high-resolution hyperspectral images produced by all sorts of imaging sensors, processing and analysis of these images requires effective retrieval t...

2013
Miguel Angel Veganzones Joana Frontera-Pons Jocelyn Chanussot Jean Philippe Ovarlez

In this work we propose a hierarchical clustering methodology for hyperspectral data based on the Hotelling’s T 2 statistic. For each hypespectral sample data, the statistical sample mean is calculated using a window-based neighborhood. Then, the pairwise similarities between any two hyperspectral samples are computed in base to the Hotelling’s T 2 statistic. This statistic assumes a Gaussian d...

Journal: :Anticancer research 2016
Ryuichi Kumashiro Kozo Konishi Tohru Chiba Tomohiko Akahoshi Shotaro Nakamura Masaharu Murata Morimasa Tomikawa Takayuki Matsumoto Yoshihiko Maehara Makoto Hashizume

BACKGROUND/AIM Two-dimensional hyperspectral data systems with enhanced area detection and diagnostic abilities are now available in gastrointestinal endoscopy for colorectal cancer. We evaluated a new hyperspectral system for diagnosis of colorectal cancer. PATIENTS AND METHODS A resected-specimen spectrum observation module (stereoscopic macroscope, hyperspectral camera, and xenon lamp) was...

2018
Jiaojiao Li Bobo Xi Yunsong Li Qian Du Keyan Wang

With success of Deep Belief Networks (DBNs) in computer vision, DBN has attracted great attention in hyperspectral classification. Many deep learning based algorithms have been focused on deep feature extraction for classification improvement. Multi-features, such as texture feature, are widely utilized in classification process to enhance classification accuracy greatly. In this paper, a novel...

2014
Bharath Bhushan Damodaran Rama Rao Nidamanuri

Hyperspectral image contains fine spectral and spatial resolutions for generating accurate land use and land cover maps. Supervised classification is the one of method used to exploit the information from the hyperspectral image. The traditional supervised classification methods could not be able to overcome the limitations of the hyperspectral image. The multiple classifier system (MCS) has th...

2013
Roozbeh Rajabi Hassan Ghassemian

Hyperspectral imaging, due to providing high spectral resolution images, is one of the most important tools in the remote sensing field. Because of technological restrictions hyperspectral sensors has a limited spatial resolution. On the other hand panchromatic image has a better spatial resolution. Combining this information together can provide a better understanding of the target scene. Spec...

Journal: :CoRR 2016
Siwei Feng Yuki Itoh Mario Parente Marco F. Duarte

Hyperspectral signature classification is a quantitative analysis approach for hyperspectral imagery which performs detection and classification of the constituent materials at the pixel level in the scene. The classification procedure can be operated directly on hyperspectral data or performed by using some features extracted from the corresponding hyperspectral signatures containing informati...

2010
YINGXUAN ZHU PRAMOD K. VARSHNEY HAO CHEN

Hyperspectral images, contain data from a large number of contiguous bands and, therefore, cannot be displayed directly using a color display system. In this paper, an independent component analysis-based (ICA-based) approach for the problem of fusing hyperspectral images to three-band images for color display purposes is proposed. Correlation coefficient and mutual information (ICA-CCMI) are u...

Journal: :CoRR 2013
Roozbeh Rajabi Hassan Ghassemian

Hyperspectral imaging, due to providing high spectral resolution images, is one of the most important tools in the remote sensing field. Because of technological restrictions hyperspectral sensors has a limited spatial resolution. On the other hand panchromatic image has a better spatial resolution. Combining this information together can provide a better understanding of the target scene. Spec...

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