A Fast Extraction Method of Water Boundary Based on the Landsat TM Image

Abstract:

The extraction of water boundary is the basis for measurement of the watershed area and the extraction of other water parameters, which has an important impact on calculation accuracy of hydrological analysis. With the rapid development of remote sensing technology, the extraction of water system and basin boundary is getting more and more importance and the extraction methods have also made a new progress. This paper takes the acquisitive TM image of Dianchi Lake of 1992. Firstly the image is enhanced by Tassled Cap Transformation, and then band ratio (b3/b1). By setting appropriate threshold to the enhanced image, we can extract the water boundary more quickly and effectively, and have achieved good results.

• Periodical: Applied Mechanics and Materials (Volumes 519-520)
• Pages: 598-601
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.519-520.598
• Online since: February 2014
• Authors: Jun Wang, Xing Ping Wen, Li Juan Zhang, Yang Zhou
• Keywords: Band Ratio, Dianchi Lake, Landsat TM, Remote Sensing, Tassled Cap Transformation, Water Boundary

References

[2] The extraction of water boundary has an important significance for monitoring changes of water area, becoming an important basis for hydrological statistics, macroscopic monitoring and evaluation of water resources, water conservancy engineering design.

[3] Nevertheless, there are still some shortcomings, which need further improvements. If you want to get higher accuracy, other means is necessary. Acknowledgement This study was jointly supported by Natural Science Foundation of China (Grant No. U1133602 and 41101343), the remote sensing geochemistry disciplinary innovation team, Kunming University of Science and Technology, Kunming, China, 2013, and the innovation team of ore-forming dynamics and prediction of concealed deposits, Kunming University of Science and Technology, Kunming, China, 2008. References.

DOI: 10.21127/yaoyimr20210003