Information Hiding of Two-dimensional Code by Multi-layer Optical
Information Hiding of Two-dimensional Code by Multi-layer Optical
复制标题
多层光学二维码信息隐藏
DOI：
10.1109/ispa.2012.113
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
K. Sakurai
中科院分区：
文献类型：
--
作者：
N. Teraura;K. Sakurai
印刷在纸上的光学信息介质利用印刷材料吸收可见光。有一个二维码，它可以被加密，但也有可能被复制。因此，我们设想一种不可能被复制并从而提供高安全性的信息介质。表面印有普通的二维码。内层由使用多种材料印刷的二维码组成，这些材料吸收某些不同的波长，形成多层二维码。信息可以分布在形成多路复用的内层的二维码之间。
Optical information media printed on paper use printing materials to absorb visible light. There is a two-dimensional code, which may be encrypted but also can possibly be copied. Hence, we envisage an information medium that cannot possibly be copied and thereby offers high security. At the surface, the normal two-dimensional code is printed. The inner layers consist of two-dimensional codes printed using a variety of materials, which absorb certain distinct wavelengths, to form a multilayered two-dimensional code. Information can be distributed among the two-dimensional codes forming the inner layers of the multiplex.