Technology and Methodology |
|
|
|
|
|
A Water Information Extraction Method Based on WorldView II
Remote Sensing Image in Tungsten Ore Districts: A Case Study of of Dayu County in Jiangxi Province |
SONG Qi-fan 1, WANG Shao-jun 1, ZHANG Zhi 1,2, WANG Peng 3, AN Ping 1 |
(1.The Faculty of Earth Science, China University of Geosciences, Wuhan 430074, China; 2.Department for Crust Dynamics & Deep Space Exploration, National Remote Sensing Center of China, Wuhan 430074, China; 3.College of Mining Technology, Taiyuan University of Technology, Taiyuan 030021, China) |
|
|
Abstract Taking the tungsten ore district of Dayu County in Jiangxi Province as an example,the authors analyzed the parameters and relationship between the WorldView II bands,selected the best bands for the information extraction of water in the study area,and tested and analyzed a variety of fusion methods to access the suitable fusion method that uses WorldView II image to extract the water information in the ore district. The water information in the ore district was extracted by calculating NDWI,analyzing spectral relations between different bands,and making supervised classification. The interpretation accuracies of NDWI, Spectral Relation Act and supervised classification were tested by visual interpretation. The interpretation results were revised to attain the accuracy of 92%,and the field verification accuracy can reach 90%,which meets the requirements of the work.
|
Keywords
Tibet
Salt lake ore deposit
TM(ETM+) data
Information extracting
Perspective areas
|
|
Issue Date: 17 June 2011
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
|
Shared |
|
|
|
|
|
Discussed |
|
|
|
|