期刊文献+

手持设备上可变运动矢量的多媒体版权方案

Multimedia DRM scheme using modulated motion vector for handset
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摘要 提出了一种新的视频数字版权管理(DRM)方案,它能针对手持移动设备的计算特点而修改宏块中的运动矢量参数。实验结果表明该方法不仅能在加解密过程中占用较少的系统处理资源,而且使得能对诸如便携式多媒体播放器与个人数字助理等类型的手持移动设备分别进行单独鉴定认证。 A new digital fights management (DRM) of video was proposed. It modified the motion vector (MV) of macro block (MB) for mobile device. Experimental results indicate that the proposed DRM can not only achieve very low cost of the encryption, but also enable separable authentication to individual mobile devices, such as portable multimedia player (PMP) and personal digital assistants (PDA).
出处 《计算机应用》 CSCD 北大核心 2007年第7期1611-1612,共2页 journal of Computer Applications
基金 湖北省自然科学基金资助项目(2002ABA055) 武汉市青年科技晨光计划项目(20015005078)
关键词 运动矢量 设备密钥 数字版权管理 授权手持设备 motion vector device key Digital Rights Management (DRM) authorized handset
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参考文献5

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