期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2008
卷号：XXXVII Part B4
页码：15-18
出版社：Copernicus Publications
摘要：Considering the characteristic of vector geo-spatial data for digital watermarking, this paper presents a new watermarking algorithm for vector geo-spatial data based on integer wavelet transform. By the proposed algorithm, the line and surface coordinate points are decomposed by integer wavelet transform firstly, then watermark is embedded in the low frequency coefficients of integer wavelet transform, and the vector geo-spatial data with watermark is obtained by inverse integer wavelet transform finally. The experiments show that the proposed algorithm can effectively resist the attack of noise, data compressing, points deleting and format exchanging. For integer vector geo-spatial data, the algorithm can restitute the data well
