An improved integral imaging process is proposed that can display a depth-enhanced three-dimensional (3D) image by using two parallel-layered display devices. With the use of layered display devices, it is possible to construct 3D images on several depth planes and increase the depth remarkably. In addition, the translucent problem between 3D images was resolved for the first time to the author's knowledge by a time-multiplexing method. The proposed method was proven and compared with the conventional one by preliminary experiments.
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Choi et al. (2005) studied this question.