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Scientia Silvae Sinicae ›› 2013, Vol. 49 ›› Issue (10): 80-87.doi: 10.11707/j.1001-7488.20131013

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Multi-Scale Segmentation, Object-Based Extraction of Moso Bamboo Forest from SPOT 5 Imagery

Sun Xiaoyan1,2, Du Huaqiang1,2, Han Ning1,2, Ge Hongli1,2, Gu Chengyan1,2   

  1. 1. Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration Zhejiang A & F University Lin'an 311300;
    2. School of Environmental and Resources Science, Zhejiang A & F University Lin'an 311300
  • Received:2012-12-12 Revised:2013-04-02 Online:2013-10-25 Published:2013-11-05

Abstract:

Based on SPOT5 remotely sensed imagery, this research focused on delineating moso bamboo forest using object-based method, which provided the advantages of multi-scale segmentation and developing hierarchical structure. The results showed that: 1) The most appropriate window sizes for calculating texture using red (R), green (G) and blue (B) band in SPOT5 image were 9×9,7×7,9×9; 2) Extracting moso bamboo using multi-scale segmentation technique of object-based method was more accurate, with the producer's accuracy reaching 90%, obviously higher than that of the conventional maximum likelihood method(88.57%); 3) Multiresolution segmentation with the aid of texture not only ensured the accuracy of moso bamboo, but also provided help to the other forest types. The overall accuracy was 92% and the Kappa coefficient was 88.14%, both of which were the highest accuracy in the present study.

Key words: object-oriented, multi-scale segmentation, moso bamboo forest, information extraction, SPOT5

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