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Proceedings Paper

Road extraction with despeckled TerraSAR-X data using total variation minimization
Author(s): Yunpeng Zhang; Manchun Li; Xiaogu Sun; Wei Liu
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Paper Abstract

Due to random interference of electromagnetic waves in imaging procedure, SAR images are corrupted by speckle noise which limits the performance of the road extraction algorithm in spatial domain. In this paper, we aimed at the reduction of speckle noise through analytic approaches. To this end, Total Variation (TV) minimization is used to produce despeckled images that are almost photographic in appearance from original SAR images. Then, a semi-automatic road extraction technique based on fast marching algorithm provided in our previous work is applied to the despeckled SAR images. Experiment results for TerraSAR-X data demonstrates that TV minimization could effectively eliminate the false connectivity of extracted road network, which is caused by speckle noise.

Paper Details

Date Published: 30 October 2009
PDF: 6 pages
Proc. SPIE 7495, MIPPR 2009: Automatic Target Recognition and Image Analysis, 74953N (30 October 2009);
Show Author Affiliations
Yunpeng Zhang, Nanjing Univ. (China)
Manchun Li, Nanjing Univ. (China)
Xiaogu Sun, Nanjing Univ. (China)
Wei Liu, Univ. of Science and Technology of China (China)

Published in SPIE Proceedings Vol. 7495:
MIPPR 2009: Automatic Target Recognition and Image Analysis
Tianxu Zhang; Bruce Hirsch; Zhiguo Cao; Hanqing Lu, Editor(s)

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