Augmented-reality display system using liquid-crystalline microlens array for three-dimensional/two-dimensional image conversion

Munkh-Uchral Erdenebat; Anar Khuderchuluun; Tuvshinjargal Amgalan; Ki-Chul Kwon; Tae-Hyun Lee; Hak-Rin Kim; Nam Kim

doi:10.1117/12.2608552

3 March 2022 Augmented-reality display system using liquid-crystalline microlens array for three-dimensional/two-dimensional image conversion

Munkh-Uchral Erdenebat, Anar Khuderchuluun, Tuvshinjargal Amgalan, Ki-Chul Kwon, Tae-Hyun Lee, Hak-Rin Kim, Nam Kim

Author Affiliations +

Proceedings Volume 12024, Advances in Display Technologies XII; 120240C (2022) https://doi.org/10.1117/12.2608552
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

his report proposes a three-dimensional/two-dimensional switchable augmented-reality display system using a liquid crystalline lens array and an electrical polarizer. A depth camera that is connected to the proposed augmented-reality display system acquires the three-dimensional or two-dimensional information of the real objects. Here, the dual function liquid-crystalline lens array is switched its function according to the polarizing directions of an electrical polarizer. The proposed system's overall procedure is as follows: the depth camera captures the depth/color, or only color image according to the switcher of a polarizer, and the three-dimensional or two-dimensional images are displayed separately on the augmented-reality display system. It gives an opportunity that three-dimensional and two-dimensional modes can be switched automatically. In the two-dimensional mode, the captured color image of a real object is displayed directly. In the three-dimensional mode, the elemental image array is generated from the depth and color images and reconstructed as a three-dimensional image by the liquid-crystalline microlens array of a proposed augmented-reality display system. Even the proposed system cannot be implemented the real-time display in the three dimensional mode, the direction-inversed computation method generates the elemental image arrays of the real object within a possible short time.

Conference Presentation

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Munkh-Uchral Erdenebat, Anar Khuderchuluun, Tuvshinjargal Amgalan, Ki-Chul Kwon, Tae-Hyun Lee, Hak-Rin Kim, and Nam Kim "Augmented-reality display system using liquid-crystalline microlens array for three-dimensional/two-dimensional image conversion", Proc. SPIE 12024, Advances in Display Technologies XII, 120240C (3 March 2022); https://doi.org/10.1117/12.2608552

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