Issa S. I. Ottoum
Department of Computer Information systems, Alzaytoonah University of Jordan, Amman, Jordan.
Abstract— Most of governments in developed countries implement E-government model to ease the interaction between citizens and their governments to conduct the standard citizen services such as renewing a passport or a driver license. Despite the maturity of the E-government in some developed countries, it is considered fairly new in Jordan. This paper addresses the method for building and launching the E-government in Jordan in four sections. The first section addresses an overview of the current information technology structure in Jordan. The second section addresses the problems facing information technology utilities to build the Jordan’s E-government model. The third section addresses, the current status of e-government based on Jordan’s experience, and finally the last section progress in launching E- Government in Jordan, and some suggestions are addressed to speed up the implementation of E-government in Jordan.
Keywords- E-Government; Jordan; Information Technology; Challenges; E-Services.
Ryo HARASHIMA, Systems Information Engineering Tokyo City University, Tokyo, Japan.
Yue BAO, Faculty of Knowledge Engineering Tokyo City University, Tokyo, Japan.
Abstract— This paper propose a system to provide 3D display with unlimited parallax and display virtual TV as if real TV is put by HMD. By this system, the user is able to watch TV naturally by preventing which the moving of the virtual TV follows in the moving of head.
In addition, motion parallax depending on movement is expressed without visual area restriction. The system is comprised of HMD and two Web cameras. Two Web cameras are attached to get surrounding scene. At first, an observer determines a characteristic point in the 3D image from the two cameras to set the virtual TV. The screen size of the virtual TV is set in the distance to the point calculated by triangulation using two cameras. The point is tracked by the phase correlation about anteroposterior consecutive frames.
Parallax pictures are made to correspond to right side image and left side image with a size suitable for the distance. The virtual TV is displayed at the point in the input image. Two experiments were conducted to evaluate the performance of the proposal system. The experiment 1 is a experiment to evaluate image showed by virtual TV by subjects. In the experiment 2, the subjects observed two virtual cubes to confirm motion parallax. As a result, virtual TV position was fixed to the real space like the real TV and expression of the natural motion parallax was enabled by proposal system.
Keywords- Head-Mounted Display; Phase Only Correlation; Virtual TV; Mixed Reality; Motion Parallax; Stereo Camera.