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Conference Paper
Stereoscopic Wearable Display System using Holographic 3D Contents
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- Authors
- Min Sung Yoon, Jihyung Kim, Il Kwon Jeong
- Issue Date
- 2017-08
- Citation
- International Conference on 3D Systems and Applications (3DSA) 2017, pp.807-807
- Language
- English
- Type
- Conference Paper
- Abstract
- In the paper we demonstrate a directly-viewing, holographic HMD (head-mounted display) for optical reconstruction of binocular 3D contents. As a spatial light modulator (SLM), a LCoS (Liquid Crystal on Silicon) module is chosen in the demonstration as shown in Figure 1. Each LC panel for left-eye and right-eye can handle the pixel resolution of FHD (1920×1080) with its effective size of diagonal 0.55 inch, and data processing rate of 1 Gbps. In the holographic display system, computer-generated hologram (CGH) is delivered into the microdisplay panel (MDP) module via a board of display controller (BDC) with the interface of HDMI &USB ports connected to a PC. The MDP consists of two LCoSs for each eye. The MDP is connected to BDC via 32 pin-FFC Cables for data transfer as well as BLU cables for LED to be illuminated toward LCoS. To produce 360° holographic contents (1,024 frames) for the HMD-typed display 1) , we use a 3D graphic scene generated using Maya TM , from which a set of RGB image and depth map image is extracted at each viewing point: for instance, a model of a torus and cube. While a virtual camera captures the RGB-depth map by turning around near the scene' centre, camera shooting is performed at each rotational step with an angle of 0.352°, and a set of RGB and depth map of FHD resolution is saved for each frame. CGHs as shown in bottom of Figure 1 are generated from the algorithm of fast Fourier transform 2) using RGB-depth images (top and middle of Figure 1).