Digital watermarking technology is a commonscheme to secure the copyright of digital vector map.
数字矢量地图水印技术是一种解决数字矢量地图版权保护问题的常用手段。
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This will be a commonscheme used in the future, applying to Utopian community art creation based on high costs without artistic organization financing support.
Some commonscheme about chaotic synchronization and chaotic modulation has been studied in this paper, and the performance of these system has been discussed too.