多水印技术及其在数字作品交易中的应用

doi:10.3969/j.issn.1671-1122.2015.02.012

摘要/Abstract

摘要：

随着数字时代的到来,数字水印技术在版权保护、广播监视、内容认证等领域所起的作用越来越重要。经过多年的发展,数字水印技术在理论、算法和应用等各个方面都取得了很大的进展。然而,已有的水印研究大都针对单水印技术,多水印技术的研究相对较少。多水印技术有其特殊的应用场合和应用价值,针对多水印技术及其应用展开研究具有重要的意义。文章首先研究了多次嵌入、分块嵌入、融合嵌入和基于扩展变换的嵌入等典型多水印算法的优缺点;然后分析了数字作品交易过程中的版权和盗版等问题,以选定的分块多水印算法为基础,设计并实现了基于多水印技术的数字作品交易系统。该系统在原创作品中首先加入包含作者身份和创作时间等信息的水印;然后将作品转交给发行商,在其中嵌入发行商的相关信息;当用户购买作品时,再将包含用户信息的水印嵌入作品中卖给用户。文章通过实验验证了所设计方案的有效性和鲁棒性。文章最后展望了多水印技术的前景。

关键词: 多水印技术, 数字作品交易, 鲁棒性, 有效性

Abstract:

With the advent of digital era, digital watermarking exerts more and more influences in the area of copyright protection, broadcast monitoring and content authentication etc. After more than 10 years development, digital watermarking has achieved great accomplishments in the aspects of theory, algorithm, application and so forth. However, most existing watermarking researches focus on single watermarking; research on multiple watermarking is relatively less. Multiple watermarking has special application situation and value, thus the research on multiple watermarking and its application are of great significance. This paper firstly studies the advantages and disadvantages of the typical multiple watermarking methods such as re-watermarking, segmented watermarking, composite watermarking and spread-transformation watermarking, and then analyses the problems of copyright protection in the process of digital works transaction, designs and implements a digital works transaction system based on the selected segmented watermarking. In this system, the watermark containing the information such as author identity and create time is embedded into the author's works, and then the works are delivered to the publisher, while the publisher's information is embedded into the works. Before the works are sold out, the watermark containing specific consumer’s information is embedded into the works. The experiment result verifies the effectiveness and robustness of the designed system. At last, this paper prospects the foreground of the multiple watermarking.

Key words: multiple watermarking, digital works transaction, robustness, effectiveness

中图分类号:

TP309

苏娇娆. 多水印技术及其在数字作品交易中的应用[J]. 信息网络安全, 2015, 15(2): 71-76.

SU Jiao-rao. Research on Multiple Watermarking and Application in Digital Works Transaction System[J]. Netinfo Security, 2015, 15(2): 71-76.

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