25 September 2003 Watermarking of vector map based on wavelet transform
Author Affiliations +
Proceedings Volume 5286, Third International Symposium on Multispectral Image Processing and Pattern Recognition; (2003) https://doi.org/10.1117/12.538647
Event: Third International Symposium on Multispectral Image Processing and Pattern Recognition, 2003, Beijing, China
Abstract
An algorithm for watermarking of vector map based on discrete wavelet transform is presented in this paper. The watermarking information is represented by a bi-valued sequence. We embed the watermark repeatedly in the magnitude of the DWT coefficients vertices, which are extracted from the map. Considering the precision of the watermarked map might be violated and the map's usability might be damaged, the intensity of the watermark should be adjusted in the spatial domain until it meets the precision standard. Experiment results show that the watermark is significant but not violate the map's precision. The proposed algorithm is robust against some attacks.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yuanyuan Li, Yuanyuan Li, Luping Xu, Luping Xu, Zhi Chen, Zhi Chen, "Watermarking of vector map based on wavelet transform", Proc. SPIE 5286, Third International Symposium on Multispectral Image Processing and Pattern Recognition, (25 September 2003); doi: 10.1117/12.538647; https://doi.org/10.1117/12.538647
PROCEEDINGS
6 PAGES


SHARE
Back to Top