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《Science of Surveying and Mapping》 2011-03
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A watermarking algorithm of anti Douglas compression for vector map data

LI Qiang①②,MIN Lian-quan①,WANG Feng①,YANG Yong-qiang②,HE Hong-zhi②(①Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China;②69027 Troops,Urumqi 830006,China)  
The production cost of vector map data is very high,which can also be easily copied and distributed,so the security of the data is becoming more and more important.In recent years,the technology of using digital watermarking to protect the copyright of vector map data is becoming a new important research field.This paper put forwards an anti-Douglas compression algorithm to protect the copy right of vector map data.Experiments conducted on watermarking with different compression thresholds showed that the proposed algorithm was good in the extraction of watermarking.
【Fund】: 信息工程大学测绘学院硕士学位论文创新创优基金
【CateGory Index】: P208
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