THE BLIND WATERMARKING MODEL OF THE VECTOR GEOSPATIAL DATA BASED ON DFT OF QIM

摘要：

For the characteristics of digital watermarking of the vector geospatial data, the DFT（Discrete Fourier Transform) blind watermarking model is put forward based on QIM(Quantized index modulation) idea. First vector geospatial data carries on DFT. The watermark data are embedded in the magnitude of DFT through quantification ,then inverse DFT transform, the embedded watermark vector geospatial data is obtained, The experiment results show that the watermark model has good availability, not visibility ,as well as format conversion, data translation, rotation has good robustness.

关键词： Vector geospatial data digital watermarking DFT QIM

作者: Xude He Changqing Zhu Qisheng Wang

作者单位: Institute of resources and environment, North China University of Water Resources and Electric Power School of Geography Science, NanJing Normal University, NanJing 210097,China Institute of Surveying and mapping, Information Engineering University, Zhengzhou 450052,China

会议类型: 国际会议

会议名称: 2009 IEEE International Conference on Network Infrastructure and Digital Content(2009年IEEE网络基础设施与数字内容国际会议 IEEE IC-NIDC2009)

会议地点: 北京

会议语种:英文

页码: 1039-1044

在线出版日期: 2009-11-06（万方平台首次上网日期，不代表论文的发表时间）