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arXiv · 1910.11222

Data hiding in complex-amplitude modulation using a digital micromirror device

Shuming Jiao·Dongfang Zhang·Chonglei Zhang·Yang Gao·Ting Lei·Xiaocong Yuan
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Abstract

A digital micromirror device (DMD) is an amplitude-type spatial light modulator. However, a complex-amplitude light modulation with a DMD can be achieved using the superpixel scheme. In the superpixel scheme, we notice that multiple different DMD local block patterns may correspond to the same complex superpixel value. Based on this inherent encoding redundancy, a large amount of external data can be embedded into the DMD pattern without extra cost. Meanwhile, the original complex light field information carried by the DMD pattern is fully preserved. This proposed scheme is favorable for applications such as secure information transmission and copyright protection.

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Shuming Jiao, Dongfang Zhang, Chonglei Zhang, Yang Gao, Ting Lei, Xiaocong Yuan. 2019-10-24. Data hiding in complex-amplitude modulation using a digital micromirror device. https://arxiv.org/abs/1910.11222

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