【摘要】 数字媒体的知识产权保护已经变得十分迫切和必要,权记保护技术是实现知识产权保护的前提。本文对权记隐藏技术的一般原理和实现要素进行了简要论述。并据此设计出基于DWT变换域系数和混沌加密技术出具体的实现系统,实验结果表明,该实现系统权记信息的隐藏效果好,能够实现对宿主信息的有效保护,防数据丢失和抗信道噪声干扰性能优异,经过高强度的数据压缩后,仍然较好的提取隐藏的权记信息,具有较强的鲁棒性。更多还原

【Abstract】 The information property (IP) protection of digital multimedia becomes an impending issue, for which the effective right identifier protection technology is the precondition. The principles and implement basics of right identifier hiding technology were proposed. And the implement system based on DWT domain and chaos encryption technic was designed on these principles. The experiments and their relevant results show that the system can hide well the IP right identifier, protect the lodge information effectively and resist data losing and channel disturb. It can extract hiding information after high ratio compress because of good robustness.更多还原