Automatic classification of dayside aurora in all-sky images using a multi-level texture feature representation

Shenmiao Han, Zhensen Wu, Guangli Wu, Jun Tan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

In this paper, we propose an aurora classification method using a multi-level feature representation aimed to capture both global and local texture information, and to reduce the feature space dimension substantially. First-order and second-order statistics are computed for an input image and its low-frequency scaled images at three lower levels obtained using wavelet decomposition. The features include gray level distribution, co-occurrence matrix features, and run-length matrix features. A support vector machine (SVM) classifier was trained and tested on a Chinese Arctic Yellow River Station dayside aurora image dataset. Classification performance was evaluated and compared with those of k-nearest neighbor (KNN) classifiers and back-propagation neural networks (BPNN). To explore the possibility of using a smaller feature space, we used a Minimum-Redundancy Max-Relevance feature selection strategy. The result shows that there is only indistinct performance decrease by reducing the feature vector from a total of 88 to the most discriminatory 38 features. This proves that our multi-level feature representation is very robust.

Original languageEnglish (US)
Title of host publicationMaterial and Manufacturing Technology II
Pages158-162
Number of pages5
DOIs
StatePublished - Jan 1 2012
Event2011 2nd International Conference on Material and Manufacturing Technology, ICMMT 2011 - Xiamen, China
Duration: Jul 8 2011Jul 11 2011

Publication series

NameAdvanced Materials Research
Volume341-342
ISSN (Print)1022-6680

Other

Other2011 2nd International Conference on Material and Manufacturing Technology, ICMMT 2011
CountryChina
CityXiamen
Period7/8/117/11/11

Keywords

  • Aurora
  • Gray level co-occurrence matrix
  • Run-length
  • Support vector machine
  • Wavelet decomposition

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Han, S., Wu, Z., Wu, G., & Tan, J. (2012). Automatic classification of dayside aurora in all-sky images using a multi-level texture feature representation. In Material and Manufacturing Technology II (pp. 158-162). (Advanced Materials Research; Vol. 341-342). https://doi.org/10.4028/www.scientific.net/AMR.341-342.158