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Virtually optical information verification with a hierarchical structure

机译:具有分层结构的虚拟光学信息验证

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摘要

A virtually optical system with a hierarchical structure is designed for optical verification. At each hierarchical level, two phase-only masks are alternately generated using an iterative approach and then are sparsified. All sparse phase-only masks generated at the lower hierarchical levels are fixed and applied as constraints at the higher hierarchical level. Since sparse phase-only masks are applied for the decoding, the recovered images are invisible and instead can be further verified by a nonlinear correlation algorithm. The results are presented to show validity of the proposed method, and the proposed method provides a promising strategy for optical verification.
机译:具有分级结构的虚拟光学系统被设计用于光学验证。在每个层次级别,使用迭代方法交替生成两个仅相位的掩码,然后将其稀疏化。在较低层次级别生成的所有稀疏纯相位掩码都是固定的,并在较高层次级别用作约束。由于仅稀疏相位掩码被用于解码,因此恢复的图像是不可见的,而是可以通过非线性相关算法进一步验证。结果表明该方法的有效性,为光学验证提供了一种有希望的策略。

著录项

  • 来源
    《Optical engineering》 |2018年第1期|010502.1-010502.4|共4页
  • 作者

    Wen Chen;

  • 作者单位

    The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China,The Hong Kong Polytechnic University, Department of Electronic and Information Engineering, Hong Kong, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    optical information verification; hierarchical structure; phase retrieval;

    机译:光学信息验证;层次结构;相位检索;

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