Turbo-Based DNW Algorithm for Compressed Video in VLC Domain

作     者：LINGHe-fei LUZheng-ding ZOUFu-hao 

作者机构：CollegeofComputerScienceandTechnologyHuazhongUniversityofScienceandTechnologyWuhan430074HubeiChina 

出 版 物：《Wuhan University Journal of Natural Sciences》 (武汉大学学报（自然科学英文版）)

年 卷 期：2005年第10卷第1期

页      面：297-302页

核心收录：

学科分类：0839[工学-网络空间安全] 08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 081201[工学-计算机系统结构] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：SupportedbytheNationalKeyTechnologiesResearchandDevelopmentProgrammeofChinaduringthe10thFiveYearPlanPeriod(2002BA103A04) 

主　　题：real time video watermarking Turbo based DNW (T DNW) VLC domain 

摘      要：In order to improve the robustness of the differential number watermarking (DNW) algorithm proposed by us before, we proposed turbo-based DNW (T-DNW) in which the turbo code was employed in the DNW algorithm. The turbo code was used to encode the message prior to watermark embedding and decode the watermark posterior to watermark detection. From the analysis and experiments, the following conclusion could be drawn. The T-DNW algorithm has little higher computational complexity than DNW. And both algorithms have the same performance in terms of watermark visual quality impact. Furthermore, the T-DNW algorithm is much more robust against some common attack than DNW. Although the T-DNW algorithm sacrifices a half payload, we think the achievements are encouraging.