摘要
地理空间数据安全是目前测绘领域急需解决的问题,信息隐藏技术为该问题的解决提供了一条新的思路。阐述信息隐藏的基本概念,讨论它在空间数据安全中两个重要的应用——空间数据水印技术及空间数据隐写技术,研究空间数据隐写技术的实现方法,并对这两种技术的异同进行比较。
The geospatial data security has been the most important problem to be solved in the surveying and mapping field, so the information hiding technique provides a new way out. Firstly, the concept of information hiding is presented, of which two important applications- geospatial data watermark technology and steganography technology are discussed. The realization of the latter technology is studied by compating withthe former technology.
出处
《测绘工程》
CSCD
2013年第3期65-68,共4页
Engineering of Surveying and Mapping
关键词
空间数据安全
信息隐藏
数字水印技术
隐写技术
空间数据版权
geospatial data security
information hiding
digital watermark technique
steganography technique
geospatial data copyright
