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  2014, Vol. 27 Issue (6): 509-516    DOI:
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A Method for Image Classification Based on Polyharmonic Random Weights Networks and Curvelet Transform
ZHAO Jian-Wei, ZHOU Zheng-Hua, CAO Fei-Long
Department of Mathematics, College of Sciences, China Jiliang University, Hangzhou 310018

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Abstract  Image classification is one of the most important and basic problems in image processing, and designing an effective feature extraction method and a fast classifier with a high recognition rate are two key points in image classification. Polyharmonic random weights networks (P-RWNs) are proposed based on the random weights networks (RWNs) and the advantage of polynomial that it can approximate the part with small variation effectively. Based on the proposed P-RWNs, a method for image classification is presented by integrating fast discrete curvelet transform (FDCT) and discriminative locality alignment (DLA). In the proposed method, FDCT is used to extract features from images, then the dimensionalities of these features are reduced by DLA before the features are input to the proposed P-RWNs classifier for recognition. Experimental results show that the proposed image classification method achieves higher recognition rate and recognition speed.
Key wordsImage Classification      Polyharmonic Random Weights Network      Fast Discrete Curvelet Transform      Discriminative Locality Alignment     
Received: 07 January 2013     
ZTFLH: TP 751  
  TP 183  
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ZHAO Jian-Wei
ZHOU Zheng-Hua
CAO Fei-Long
Cite this article:   
ZHAO Jian-Wei,ZHOU Zheng-Hua,CAO Fei-Long. A Method for Image Classification Based on Polyharmonic Random Weights Networks and Curvelet Transform[J]. , 2014, 27(6): 509-516.
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http://manu46.magtech.com.cn/Jweb_prai/EN/      OR     http://manu46.magtech.com.cn/Jweb_prai/EN/Y2014/V27/I6/509
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