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FOREST RESOURCES WANAGEMENT ›› 2017›› Issue (6): 54-59.doi: 10.13466/j.cnki.lyzygl.2017.06.010

• Scientific Research • Previous Articles     Next Articles

A Comparison of Object-oriented Methods of Extracting Eucalyptus Information Based on GF-2 Images

LIANG Wenhai1(), LIU Jikai2(), CHEN Qi1, CHEN Xiandong1, ZHONG Shiquan3   

  1. 1. Guangxi Forest Inventory and Planning Institute,Nanning 530000,China
    2. University of Science and Technology of Anhui,Fengyang 233100,China
    3. Guangxi Institute of Meteorology,Nanning/Remote Sensing Application and Test Base of National Satellite Meteorology Centre,Nanning 530022,China
  • Received:2017-09-14 Revised:2017-10-18 Online:2017-12-28 Published:2020-09-28
  • Contact: LIU Jikai E-mail:lwxlwhlwy@163.com;liujkahstu@163.com

Abstract:

In order to explore GF-2 satellite performance in eucalyptus information extraction,this research took place in Pinglang County.After multi-scale segmentation,the research used object-oriented classification methods like Bayes(Bayes),Decision Tree(DST),K nearest neighbor(KNN),Support Vector Machine(SVM)and Random trees(RDT)to extract the Eucalyptus information.Then it evaluated the classification accuracy by Confusion Matrix.The results showed that the Support Vector Machine was the best classification method with the overall accuracy at 86.4%,and the Kappa coefficient 0.73.The Bayes classification was worst.Thus,GF-2 satellite data can provide a potential data source for remote sensing monitoring of eucalyptus information,and the Support Vector Machine would be a potential method.

Key words: GF-2 images, eucalyptus, object-oriented, support vector machine, method comparison

CLC Number: