نتایج جستجو برای: automatic target recognition atr

تعداد نتایج: 757822  

2015
Bo Sun Xuewen Wu

In recent years, more and more researchers' attention has been drawn to the sparse representation-based classification (SRC) method and its application in image analysis and pattern recognition, due to its good characteristics of high recognition rate, robustness to corruption and occlusion, and little dependence on the features selection etc. However, sufficient training samples are always req...

2015
Xiaosheng Wu Junding Sun Guoliang Fan Zhiheng Wang

This paper presents an improved local ternary pattern (LTP) for automatic target recognition (ATR) in infrared imagery. Firstly, a robust LTP (RLTP) scheme is proposed to overcome the limitation of the original LTP for achieving the invariance with respect to the illumination transformation. Then, a soft concave-convex partition (SCCP) is introduced to add some flexibility to the original conca...

2013
Zhijun Sun Lei Xue Yangming Xu Y. XU

Automatic target recognition (ATR) of synthetic aperture radar (SAR) image is investigated. One feature extraction algorithm of SAR image based on multilayer auto-encoder is proposed. The method makes use of a probabilistic neural network, restricted Boltzmann machine (RBM), modeling probability distribution of environment. Through the formation of more expressive multilayer neural network, the...

2008
Petr Knoth Marek Schmidt Pavel Smrž Zdeněk Zdráhal

Automatic Term Recognition focuses on the extraction of words and multi-word expressions that are significant for a given domain. There is a considerable interest in using ATR for automatic metadata generation, creation of thesauri and terminological glossaries, keyword extraction, ontology building, etc. In this paper, we build upon the work done at the University of Sheffield, where a library...

2006
Noslén Hernández-González José Luís Gil Rodríguez Jorge A. Martin Francisco Silva-Mata Ricardo González-Gazapo Raúl Álvarez

This paper introduces an Automatic Target Recognition (ATR) method based on X Band Radar image processing. A software which implements this method was developed following four principal stages: digital image formation, image preprocessing, feature selection through a combination of C4.5 Decision Tree and PCA and classification using SVM. The automatic process was validated using two images sets...

2014
Carmine Clemente Luca Pallotta Ian Proudler Antonio De Maio John J. Soraghan Alfonso Farina

The capability to exploit multiple sources of information is of fundamental importance in a battlefield scenario. Information obtained from different sources, and separated in space and time, provides the opportunity to exploit diversities to mitigate uncertainty. In this study, the authors address the problem of automatic target recognition (ATR) from synthetic aperture radar platforms. The au...

2003
Anindya S. Paul Arnab K. Shaw

In this paper, a new 1-D hybrid Automatic Target Recognition (ATR) algorithm is developed for sequential High Range Resolution (HRR) radar signatures. The proposed hybrid algorithm combines Eigen-Template based Matched Filtering (ETMF) and Hidden Markov modeling (HMM) techniques to achieve superior HRR-ATR performance. In the proposed hybrid approach, each HRR test profile is first scored by ET...

2004
S. J. Lycett J. Denton D. Blacknell

This paper investigates a template-matching approach to automatic target recognition (ATR) for SAR for the case in which positive identification of a single known target type is required. ATR schemes are necessarily supported by databases of training imagery and of particular interest in this study was the impact on performance of using a database of simulated imagery to match against real in s...

2007
XiangXin Zhu Shengcai Liao Zhen Lei Rong Liu Stan Z. Li

The correlation filters for pattern recognition, have been extensively studied in the areas of automatic target recognition(ATR) and biometrics. Whereas the conventional correlation filters perform directly on image pixels, in this paper, we propose a novel method, called “feature correlation filter (FCF)”, by extending the concept of correlation filter to feature spaces. The FCF preserves the ...

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