• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

Computer Engineering & Science

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A multi-feature multi-kernel ELM classification
method for high resolution remote sensing images
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CHU Heng1,2,3,4,CAI Heng1,2,3,SHAN De-ming1,2,3   

  1. (1.School of Communication and Information Engineering,
    Chongqing University of Posts and Telecommunications,Chongqing 400065;
    2.Key Laboratory of Optical Communication and Network in Chongqing,Chongqing 400065;
    3.Key Laboratory of Ubiquitous Sensing and Networking in Chongqing,Chongqing 400065;
    4.Chongqing Survey Institute,Chongqing 400020,China)
  • Received:2018-11-15 Revised:2019-01-25 Online:2019-10-25 Published:2019-10-25

Abstract:

Given the complex and variable distribution of high-resolution remote sensing images and the fast classification performance of the extreme learning machine (ELM), we propose a multi-feature multi-kernel high-resolution remote sensing image classification method based on ELM. Firstly, the original image is roughly divided into several feature regions by the multi-scale segmentation algorithm. Then the object information of typical earth features is obtained by merging the coarse segmentation images according to the region merging criterion, and the spectral features and spatial features of the segmentation objects are extracted. A multi-kernel ELM via weighted combination of kernel functions is used to classify images, and the final classification results are obtained. Experimental results show that the proposed method not only reduces the requirements for the target training samples, but also improves the accuracy, timeliness and integrity of the classification.
 

 

Key words: high resolution remote sensing image, extreme learning machine, multi-scale segmentation, region merging, kernel function