A Geo-Data Watermarking Model For Network Environment

Abstract

Abstract:

This paper build a digital watermarking model for geospatial data oriented network environment, in the view of security that geospatial data distribution and using in the network environment, based on digital watermarking technology, combined with data encryption thinking, taking into account the characteristics of geospatial data in network environment. Based on this model, considering the diversity source of geographic data in network environment, Establish a watermark algorithm library and embed digital watermark in geographic data itself. at the same time, propose a packet-based digital watermarking algorithm, which embedded watermark information through the mapping function quantifily in the network transmission packet. Experiments show that the digital watermark model oriented the network environment get a better solution for the use of geospatial data access control, copyright protection, tracking management and so on in network environment.

Key words: network environment, digital watermarking model, watermark algorithm library, data packet, copyright protection

CLC Number:

P208

References

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