نتایج جستجو برای: spectral angle mapper

تعداد نتایج: 291877  

2012
Shaohui Chen Hongbo Su Renhua Zhang Jing Tian Lihu Yang

There are two mistakes in this article [1]. On page 523, lines 10–11, the sentence " the value of the SAM is 1, but the value of the ESAM is less than 1 " should be " the value of the SAM is 0, but the value of the ESAM is great than 0 ". Line 12, " but the value of the ESAM is less than 1 " should be " but the value of the ESAM is great than 0 for even n " .

2012
Ron Martin Boris Thies Andreas OH Gerstner

BACKGROUND In the field of earth observation, hyperspectral detector systems allow precise target detections of surface components from remote sensing platforms. This enables specific land covers to be identified without the need to physically travel to the areas examined. In the medical field, efforts are underway to develop optical technologies that detect altering tissue surfaces without the...

Journal: :Remote Sensing 2014
Athos Agapiou Dimitrios D. Alexakis Apostolos Sarris Diofantos G. Hadjimitsis

The potentials of the forthcoming new European Space Agency‘s (ESA) satellite sensor, Sentinel-2, for archaeological studies was examined in this paper. For this reason, an extensive spectral library of crop marks, acquired through numerous spectroradiometric campaigns, which are related with buried archaeological remains, has been resampled to the spectral characteristics of Sentinel-2. In add...

Journal: :Remote Sensing 2014
Nasrullah Zaini Freek D. van der Meer Harald van der Werff

The development of advanced laboratory-based imaging hyperspectral sensors, such as SisuCHEMA, has created an opportunity to extract compositional information of mineral mixtures from spectral images. Determining proportions of minerals on rock surfaces based on spectral signature is a challenging approach due to naturally-occurring minerals that exist in the form of intimate mixtures, and grai...

2010
F. Samadzadegan H. Hasani T. Partovi

Nowadays by developing hyperspectral sensor technology, it is possible to simultaneously capture image with hundreds of contiguous narrow spectral bands. Increasing spectral bands provide more information and seem to improve classification accuracy. Nevertheless limited training samples lead to poor parameter estimation of statistical classifiers which is called Hughes phenomena. Recently Suppo...

2014
David G. Zawada Charles H. Mazel

A diverse group of coral reef organisms, representing several phyla, possess fluorescent pigments. We investigated the potential of using the characteristic fluorescence emission spectra of these pigments to enable unsupervised, optical classification of coral reef habitats. We compiled a library of characteristic fluorescence spectra through in situ and laboratory measurements from a variety o...

Journal: :Analytical and bioanalytical chemistry 2009
Ping Hei Ronnie Ng Sarah Walker Mark Tahtouh Brian Reedy

FTIR and Raman spectral imaging can be used to simultaneously image a latent fingerprint and detect exogenous substances deposited within it. These substances might include drugs of abuse or traces of explosives or gunshot residue. In this work, spectral searching algorithms were tested for their efficacy in finding targeted substances deposited within fingerprints. "Reverse" library searching,...

2016
Marco Conti Roberta Scanferlato Maria Louka Anna Sansone Carla Marzetti Carla Ferreri

BACKGROUND: Red blood cells (RBC) are obtained by non-invasive methods and widely used for diagnostic tests of health status. Hyperspectral Dark Field Microscopy (HDFM) is a promising technique for nanoscale bio imaging and spectral analysis without additional sample preparation. OBJECTIVE: Develop a protocol for human RBC characterization by HDFM, checking the feasibility of a reference spectr...

2008
Yanfei Zhong Liangpei Zhang Pingxiang Li Xin Huang

An intelligent approach based on artificial immune systems (AIS) is proposed in this paper to perform the task of spectrum recognition in hyperspectral data analysis. Although traditional spectral matching techniques have provided some confirmatory information to aid the interpretation of hyperspectral data, the improvement is yet to be made because of the complexity of the spectra. The immunol...

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