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Unequal error protection scheme for image transmission based on regularized variable-node and expanding window fountain codes

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Abstract

A transmission scheme based on rateless codes is proposed for image delivery over additive white Gaussian noise (AWGN) channels. Unequal Error Protection (UEP) characteristics are also introduced to provide prioritized delivery for different layers in content-based image. Firstly, layer segmentation processing based on an improved guided filtering is introduced to decompose the source image into the base layer and detail layer. Then, a windowing technique is applied to produce a bias towards certain classes of layers according to their various protection requirements. Variable-node degree distribution is also exploited to provide enhanced UEP and improve the high error floor suffered by some conventional UEP schemes. Compared with the conventional image transmission schemes based on rateless codes with UEP, the additional parameters introduced by the proposed scheme make it more general and flexible for individual applications. Furthermore, the proposed approach can provide better UEP performance and improve the network image transmission quality, which are confirmed both theoretically and experimentally.

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Acknowledgments

This paper was supported by National Natural Science Foundation of China under Grant 61371125. The authors would like to thank NSFC for funding this research.

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Authors and Affiliations

  1. School of Electronic Information, Wuhan University, Wuhan, 430072, Hubei, China

    Tai-qi Huang, Ben-shun Yi, Wei-qing Yao & Wei-zhong Li

  2. Collaborative Innovation Center for Geospatial Technology, Wuhan, 430072, Hubei, China

    Tai-qi Huang, Ben-shun Yi, Wei-qing Yao & Wei-zhong Li

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  1. Tai-qi Huang
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  2. Ben-shun Yi
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  3. Wei-qing Yao
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  4. Wei-zhong Li
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Correspondence to Ben-shun Yi.

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Huang, Tq., Yi, Bs., Yao, Wq. et al. Unequal error protection scheme for image transmission based on regularized variable-node and expanding window fountain codes. Multimed Tools Appl 76, 13383–13400 (2017). https://doi.org/10.1007/s11042-016-3745-z

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  • DOI: https://doi.org/10.1007/s11042-016-3745-z

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