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3-D color light field image encryption based on micro-lens array

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Abstract

In this paper, we present a high-dimension image encrypting method to encrypt 3D color image. Inspired by the fact that light field camera can capture both the spatial information and directional information, we use a micro-lens array to obtain both the 2D spatial and 2D directional information to form the 4D distributions of light beams, then the chaotic method and Arnold transform are employed to encrypt the spatial information and directional formation respectively. The decrypted 4D light field data can be used to reconstruct image with adjustable focal length. Numerical simulations show that the proposed method has high sensitiveness to its key spaces and high security in statistical information. In addition, test results illustrate that the proposed method has strong robustness when occlusion attacks occur.

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Acknowledgments

This work is supported by the Natural Science Foundation of Zhejiang Province of China (Grant No. LQ16F050003), the Research Found of Zhejiang Province Department of Education (Grant No. Y201430970), the National Natural Science Foundation of China (Grant No. 61205015), and the Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20123120130001).

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Authors and Affiliations

  1. Shanghai Key Lab of Modern Optical System, Engineering Research Center of Optical Instrument and System, Ministry of Education, School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai, 200093, China

    Suping You, Wei Zhang & Bo Yang

  2. School of Science, Hangzhou Dianzi University, Hangzhou, 310018, Zhejiang, China

    Suping You & Yucheng Lu

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  1. Suping You
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  2. Yucheng Lu
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  3. Wei Zhang
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  4. Bo Yang
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Correspondence to Suping You.

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You, S., Lu, Y., Zhang, W. et al. 3-D color light field image encryption based on micro-lens array. Opt Quant Electron 48, 402 (2016). https://doi.org/10.1007/s11082-016-0670-3

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  • DOI: https://doi.org/10.1007/s11082-016-0670-3

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