A Further Study on an Optical Watermarking Scheme | |
Lu, Yifeng ; Li, Xiaolong ; Qi, Wenfa ; Yang, Bin | |
2008 | |
英文摘要 | Recently, authentication of valuable documents has been widely, studied and applied all over the world. One of the solutions for high-security authentication is optical watermark, which is different from traditional digital watermark in the way of watermark extraction. Optical watermark is detected by some optical and visual means. This paper discuss the optical watermark based on Moire phenomenon. We first elucidate the Moire phenomenon mathematically. Then we give an in-depth exploration of optical watermark based on phase modulation in a theoretical way. In addition, a security improvement with random noise is introduced to make the watermark harder to be cracked.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000270665401105&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Engineering, Electrical & Electronic; EI; CPCI-S(ISTP); 0 |
语种 | 英语 |
DOI标识 | 10.1109/ICOSP.2008.4697588 |
内容类型 | 其他 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/162017] ![]() |
专题 | 信息科学技术学院 |
推荐引用方式 GB/T 7714 | Lu, Yifeng,Li, Xiaolong,Qi, Wenfa,et al. A Further Study on an Optical Watermarking Scheme. 2008-01-01. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论