扩频指纹识别的有效抗干扰方法

Proceedings of the International Conference on Signal Processing and Multimedia Applications Pub Date : 2011-07-18 DOI:10.5220/0003497101670172

M. Kuribayashi

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引用次数: 0

摘要

在IH2008中提出了针对基于cdma的指纹识别方案的迭代检测方法，该方法的嵌入过程为加性水印方法。该检测方法适用于利用内容的特性调制指纹的乘法水印方法。在本研究中，我们研究了分层版Cox方案中嵌入在内容中的指纹之间的干扰，并提出了结合去除操作迭代检测共谋的有效检测方法。通过引入两种阈值，自适应地进行去除操作，以减少干扰，而不会造成严重的误检。

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Effective interference reduction method for spread spectrum fingerprinting

The iterative detection method was proposed in IH2008 specified for the CDMA-based fingerprinting scheme which embedding procedure was additive watermarking method. Such a detection method is applicable for the multiplicative watermarking method that modulates a fingerprint using the characteristic of a content. In this study, we study the interference among fingerprints embedded in a content in the hierarchical version of Cox's scheme, and propose the effective detection method that iteratively detects colluders combined with a removal operation. By introducing two kinds of thresholds, the removal operation is adaptively performed to reduce the interference without causing serious false detection.

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Proceedings of the International Conference on Signal Processing and Multimedia Applications

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