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Journal of Applied Remote Sensing

Application of satellite remote sensing to coastal topography generation: case study of Chongming Island in Shanghai, China
Author(s): Xiaohu Zhang; Zhongyang Guo; Xiaoyan Dai; Xiaodong Li
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Paper Abstract

This study couples Laplacian-of-Gaussian filter (LoG) and wavelet multi-scale edge detection approaches to extract the waterlines of Chongming Island from Landsat images. The digital elevation model (DEM) of the Chongming tidal flat is constructed by means of the "waterline method". From multi-temporal images obtained under different tidal conditions, it is possible to build up a set of heighted waterlines within the tidal zone, and gridded DEM is then generated by the Australian National University Digital Elevation Model (ANUDEM) method. The results indicate that the methods proposed by this paper can effectively reproduce the coastal near shore topography of Chongming Island, and the precision of the DEM of Dongtan tidal flat is acceptable.

Paper Details

Date Published: 1 December 2009
PDF: 12 pages
J. Appl. Remote Sens. 3(1) 033572 doi: 10.1117/1.3289727
Published in: Journal of Applied Remote Sensing Volume 3, Issue 1
Show Author Affiliations
Xiaohu Zhang, East China Normal Univ. (China)
Zhongyang Guo, East China Normal Univ. (China)
Xiaoyan Dai, East China Normal Univ. (China)
Xiaodong Li, East China Normal Univ. (China)


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