Session Index

S10. Metaverse Photonics

Metaverse Photonics I
Friday, Dec. 2, 2022  13:00-15:00
Presider: Yu-Chieh Cheng、Ye-Wei Yu
Room: 2F A206
13:00 - 13:30
Manuscript ID.  0910
Paper No.  2022-FRI-S1001-I001
Invited Speaker:
Chih-Wei Huang
Machine Learning-based 3D Visual Positioning
Chih-Wei Huang, National Central University (Taiwan)

3D Visual positioning is a critical function in applications such as navigation and extended reality (XR) experiences. Recently, machine learning technologies have been actively applied to the positioning task. In this talk, advances in machine learning-based 3D visual positioning will be firstly introduced. Also, our latest works on 3D point cloud mapping and simultaneous localization and mapping (SLAM) acceleration will be presented. By utilizing a branch convolutional neural network (B-CNN) model, the "zoom-in" equivalent property results in favorable positioning accuracy and successful real-time implementation. Furthermore, deep neural networks can also be utilized to predict the iteration outcomes from the bundle adjustment (BA) in SLAM and achieve the same level of accuracy in a much shorter period.

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13:30 - 13:45 Award Candidate (Paper Competition)
Manuscript ID.  0561
Paper No.  2022-FRI-S1001-O001
Shao-Kui Zhou Development of the Head-mounted Display Based on Curved Holographic Waveguide Combiner
Shao-Kui Zhou, Wen-Kai Lin, National Changhua University of Education (Taiwan), National Yang Ming Chiao Tung University (Taiwan); Yuan-Yan Liang, Wei-Chia Su, National Changhua University of Education (Taiwan)

This study proposed an HMD based on curved holographic waveguide which consists of a cylindrical curved glass waveguide and two HOEs. A suitable coupling direction is selected to construct the cylindrical curved waveguide display. Astigmatism aberration induced by the cylindrical curved waveguide is compensated by the cylindrical lens. The FOV of this system achieve to 11.02° in the horizontal direction and 24.28° in the vertical direction.

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13:45 - 14:00 Award Candidate (Paper Competition)
Manuscript ID.  0814
Paper No.  2022-FRI-S1001-O002
TING-WEI HUANG A liquid crystal lens set in augmented reality systems and virtual reality systems for rapidly varifocal images and vision correction
TING-WEI HUANG, HAO-HSIN HUANG, YU-JEN WANG, YI-HSIN LIN, National Yang Ming Chiao Tung University (Taiwan)

The major challenges of augmented reality (AR) systems and virtual reality(VR) systems are varifocal images for vergence accommodation conflict (VAC) and vision corrections. We design a liquid crystal (LC) lens set consisting of three LC lenses for varifocal images and vision corrections in AR and VR. Four operating modes of such a LC lens set present three electrically tunable lens powers:0, -0.79,-2,and-3.06 diopters. We also demonstrate AR and VR systems by adopting the LC lens set to exhibit functions of varifocal images and vision corrections which enable to solve VAC as well as vision problem in AR and VR.

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14:00 - 14:15 Award Candidate (Paper Competition)
Manuscript ID.  0356
Paper No.  2022-FRI-S1001-O003
Ssu-Chia He Single-shot three-dimensional face detection based on fringe projection incoherent digital holography
Ssu-Chia He, Institute of Electro-Optical Engineering (Taiwan); Yu-Chih Lin, Che-We Chen, Department of Photonics (Taiwan); Han-Yen Tu, Department of Electrical Engineering (Taiwan); Chau-Jern Cheng, Institute of Electro-Optical Engineering (Taiwan)

We propose a novel method of single-shot fringe projection incoherent digital holography to perform three-dimensional (3-D) diffused face detection. Preliminary results show that the combination of incoherent digital holography and fringe projection profilometry can perform wide field of view and fast 3-D surface imaging of a simulating facial model under incoherent or white light source illumination.

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14:15 - 14:30 Award Candidate (Paper Competition)
Manuscript ID.  0165
Paper No.  2022-FRI-S1001-O004
Po-Han Chiu Computation-Guided Design of Diffractive Waveguide for Augmented Reality Display
Po-Han Chiu, Szu-Ta Chien, Ji-Ping Sheng, Taipei Tech (Taiwan); Ting-Wei Huang, Chien-Yi Huang, Wen-Chang Hung, ASUSTeK COMPUTER INC (Taiwan); Yu-Chieh Cheng, Taipei Tech (Taiwan)

We have described the design process of the diffractive waveguide for augmented reality display, capturing the link between the ray-tracing result and the choice of the grating structure. Our design process uses computation-guided rules derived from ray-tracing and diffraction theory, which produces designs that fulfill critical requirements such as field of view, high diffraction efficiency, image uniformity, and a compact layout. Practically, we have designed a display with over 40 degrees field of view and with a 12 by 10 mm eye box. Furthermore, the design process is robust and applicable to most AR design architectures.

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14:30 - 14:45 Award Candidate (Paper Competition)
Manuscript ID.  0588
Paper No.  2022-FRI-S1001-O005
Chung Hsuan Hsiao Full-colour volume holographic waveguide for augmented reality application
Chung Hsuan Hsiao, Wan Lin Lin, Zi Fan Chen, Shiuan Huei Lin, National Yang Ming Chiao Tung University (Taiwan); Vera Marinova, National Yang Ming Chiao Tung University (Taiwan), Bulgarian Academy of Science (Bulgaria); K. Y. Hsu, National Yang Ming Chiao Tung University (Taiwan)

In this paper, we demonstrate design and operation principle of holographic waveguide for augmented reality by using volume holographic optical element (VHOEs). The optical experiments have been performed to demonstrate our recursive inference. Then, we propose a novel optical scheme to increase the field of view of a full-color VHOE-based waveguide with 2D eye-box expansion.

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14:45 - 15:00 Award Candidate (Paper Competition)
Manuscript ID.  0608
Paper No.  2022-FRI-S1001-O006
Che-Heng Kuo Resolution Optimization Analysis for Near-Eye Light Field Display
Che-Heng Kuo, Yu-Hong Huang, Chih-Hung Chen, Yeh-Wei Yu, Tsung-Hsun Yang, Ching-Cherng Sun, National Central University (Taiwan)

We apply light field technique for our mixed reality (MR) glasses design. For light field display, resolution loss is a major issue we need to conquer. In this study, preliminary experiment for light field design is presented, and an important condition for light field resolution analysis is also proposed.

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