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›› 2013, Vol. 30 ›› Issue (5): 644-650.DOI: 10.7523/j.issn.2095-6134.2013.05.011

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Water body information extraction based on Landsat TM remote sensing imagery

LIU Gui-Lin1,2, ZHANG Luo-Cheng1, LIU Jian1,2, LI Guang-Yu1,2   

  1. 1. State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2012-05-10 Revised:2013-01-16 Online:2013-09-15
  • Contact: 张落成,E-mail:lchzhang@niglas.ac.cn

Abstract:

In this work, Wuhu City in China was selected as the studied area. NDWI, MNDWI, LBV_B, KT3+TM4>TM2+TM7, and a new model KT3+TM2>TM4+TM3 were used to extract water body information based on Landsat TM data. Qualitative and quantitative comparisons were made. The results show that the new water information extraction model, KT3+TM2>TM4+TM3, is the most accurate(with a total accuracy of 93%), and its accuracy is less affected by vegetation and buildings.

Key words: water body extraction, spectral relationships, LBV transformation, characteristic band

CLC Number: