复合的海图安全防护技术研究

doi:10.11959/j.issn.1000-436x.2016044

Abstract

Abstract:

An adaptive watermarking technology for 2D electronic charts was proposed. It took count in the discrete wavelet domain scheme, and obtained an ideal embedding set for watermarks in the electronic chart space. In order to preserve topology of map effectly by the large embedding rates and protect the safety of watermarking scenario, a gray balance means was provided, and the maximum capacity in each divided rectangle blocks in the electronic charts was computed.The experiment also shows that it can adapt to data perturbation by conventional operations.The method has better robustness.

Key words: information hiding, digital watermarking, electronic chart, automatic adaptive

Feng XU,Jia-nan LI,Jian-guo SUN. Research of composite safety protection for digital maps[J]. Journal on Communications, 2016, 37(2): 174-179.

Figures/Tables 9

剪切方式		误码率
剪切方式	文献[10]算法	应用自适应因子的本文算法
中心 $\frac{1}{8}$	4.86	1.145
横向 $\frac{1}{4}$	5.03	1.701
纵向 $\frac{1}{4}$	2.79	4.593
中心 $\frac{1}{4}$	10.69	6.149
左上 $\frac{1}{4}$	8.13	10.620
右下 $\frac{1}{4}$	13.14	12.585
横向 $\frac{1}{2}$	18.96	18.390
纵向 $\frac{1}{2}$	19.37	17.102

References 11

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转换情况		误码率	海图
转换情况	文献[10]算法	应用自适应因子的本文算法	海图
TAB转TIFF	0.322	0.231	EA
TAB转TIFF	0.363	0.278	EB
TIFF转SHP	0.354	0.172	EA
TIFF转SHP	0.395	0.216	EB

海图	应用自适应因子的本文算法			文献[10]算法
海图	高斯	椒盐	随机	高斯	椒盐	随机
EA	11.64	12.59	12.06	14.98	15.67	15.42
EB	13.72	13.79	13.48	16.29	17.23	16.19

海图		容量/bit
海图	文献[10]算法	应用自适应因子的本文算法	差值
EA（5%）	5 830	8 492	2 662
EB（5%）	3 603	5 291	1 688
EA（10%）	6 282	9 516	3 234
EB（10%）	4 021	6 833	2 812

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Research of composite safety protection for digital maps

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