Hoon-Jong Kang

A Stereoscopic Image Rendering Method for Autostereoscopic Mobile Devices

A novel stereoscopic image rendering method for autostereoscopic mobile devices is presented in this paper. The system to implement the proposed method consists of autostereoscopic display system and the stereoscopic rendering software engine for mobile devices. First, we mount a parallax barrier, which is made by a twisted nematic (TN) panel, on the liquid crystal display (LCD) to display stereoscopic 3-D images generated by the proposed stereoscopic rendering software engine. In addition, we present the stereoscopic rendering algorithm for 3-D graphic models. The proposed algorithm generates left-view images and right-view images from 3-D graphic models. Therefore, the proposed rendering system provides autostereoscopic views in order that users can enjoy three dimensional effects without any special glasses.

Computer-generated 3D holograms of depth-annotated images

In this paper, we propose a novel method that can generate a computer-generated hologram (CGH) from the depth stream and color video outputs provided by ENG camera. To generate CGH, distinguished from an existing electronic holographic display system that uses a computer graphic model, we utilizes video image from a depth camera. This procedure consists of two steps that the acquisition of a depth-annotated image of real object, and generation of CGH according to the 3D information that is extracted from the depth cue. Experimentally, we display the generated CGH via a holographic display system using liquid-crystal display.

Real-time 3D display system based on volume hologram

This study is focused on proposing a creative system that can display 3D hologram on the real-time basis. This method applies 3D display on volume hologram based on CGH. The process of implementing the system consists of two stages of fringe pattern recording for passive component that includes information on hologram, and irradiating object beam. Distinguished from an existing electronic holographic display system, this system is free from the process of a huge calculation that is necessary to compose CGH for a real-time 3D display. Clarifying a theoretical basis on this method, we have proved validity through results of experiments.