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《Science of Surveying and Mapping》 2016-08
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A blind watermarking algorithm for grid DEM resisting elevation translations and cropping attacks

WEI Zheng;YAN Haowen;ZHANG Liming;Faculty of Geomatics,Lanzhou Jiaotong University/Gansu Provincial Engineering Laboratory for National Geographic State Monitoring;  
Elevation translations and cropping are the common means of attack for DEM data watermark,this paper proposed a blind watermarking algorithm for grid DEM that could effectively resist elevation translations and cropping attacks.The algorithm took fully account of the characteristics of DEM data.The original watermark information was processed by the mechanism of spectrum spread in order to form corresponding relationship with elevation difference.Using the invariant feature of elevation difference of adjacent grids in attack of elevation translations,the value of watermark was embedded into elevation difference one by one by quantification manner.Then,the ectatic difference was allocated to the next character of the adjacent elevation.The experiments showed that the algorithm had good invisibility and less effect on the original DEM as well as robustness in resisting elevation translations and cropping attacks.
【Fund】: 国家自然科学基金项目(41371435 41201476);; 国家科技支撑计划项目(2013BAB05B01);; 甘肃省科技支撑计划项目(1304GKCA009);; 甘肃省自然基金项目(148RJZA041)
【CateGory Index】: TP309.7;P208
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【Citations】
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 LIU Aili;DING Hu;TIAN Dan;WANG Li;WANG Shaofeng;School of Geography and Remote Sensing,Nanjing University of Information Science&Technology;Key Laboratory of Virtual Geographic Environment,Ministry of Education,Nanjing Normal University;73608 Troops;;A DCT DEM Digital Watermarking Algorithm Based on the Analysis of Slope and Aspect[J];武汉大学学报(信息科学版);2016-07
2 CAO Yang;XIAO Jing;ZHANG Wencai;School of Computer Science,South China Normal University;;A Multiple Watermarking Algorithm for Vector Map Based on Zero-Watermark and Reversible Watermark[J];华南师范大学学报(自然科学版);2016-03
3 LI Wende;YAN Haowen;WANG Zhonghui;ZHANG Liming;Faculty of Geomatics, Lanzhou Jiaotong University;Gansu Provincial Engineering Laboratory for National Geographic State Monitoring;;A Zero-Watermarking Algorithm for Vector Linear Feature Data[J];测绘科学技术学报;2016-01
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5 WEI Zheng;YAN Haowen;ZHANG Liming;Faculty of Geomatics,Lanzhou Jiaotong University/Gansu Provincial Engineering Laboratory for National Geographic State Monitoring;;A blind watermarking algorithm for grid DEM resisting elevation translations and cropping attacks[J];测绘科学;2016-08
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