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arXiv 1402.4308cs.ITmath.IT
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重构保密的有损信源编码

Lossy Source Coding with Reconstruction Privacy

Kittipong Kittichokechai, Tobias J. Oechtering, Mikael Skoglund

摘要:

我们考虑的问题,有损信源编码与边信息的隐私约束下,在解码器的重建序列应保持一定程度的秘密,从另一个终端,如窃听者,发送者,或帮助。我们感兴趣的是在一个特定的终端重建隐私约束如何影响率失真权衡。在这项工作中,我们允许解码器使用随机映射,并给出内部和外部边界的率失真模糊区域的不同情况下,边信息是非因果关系和因果关系在解码器。在每个重构符号仅依赖于源描述和当前边信息符号的特殊情况下,提供了完整的率失真模糊区域。一个二进制的例子说明了一个新的权衡,由于新的隐私约束,并从使用随机解码器的增益。

英文摘要:

We consider the problem of lossy source coding with side information under a privacy constraint that the reconstruction sequence at a decoder should be kept secret to a certain extent from another terminal such as an eavesdropper, a sender, or a helper. We are interested in how the reconstruction privacy constraint at a particular terminal affects the rate-distortion tradeoff. In this work, we allow the decoder to use a random mapping, and give inner and outer bounds to the rate-distortion-equivocation region for different cases where the side information is available non-causally and causally at the decoder. In the special case where each reconstruction symbol depends only on the source description and current side information symbol, the complete rate-distortion-equivocation region is provided. A binary example illustrating a new tradeoff due to the new privacy constraint, and a gain from the use of a stochastic decoder is given.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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