测绘科学技术

• 道格拉斯

  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.

  本文针对矢量地图数据常用的道格拉斯压缩,提出了一种抗道格拉斯压缩的矢量地图数据数字水印算法,并对不同压缩阈值的水印检测进行了实验,取得了较好的效果。