• 한국자동차공학회논문집
• /
• 제8권4호
• /
• pp.158-168
• /
• 2000

Vehicle driving simulators can provide engineers with benefits on the development and modification of vehicle models. One of the most important factors to realistic simulations is the fidelity given by a motion system and a real-time visual image generation system. Virtual reality technology has been widely used to achieve high fidelity. In this paper the virtual environment including a visual system like a head-mounted display is developed for a vehicle driving simulator system by employing the virtual reality technique. virtual vehicle and environment models are constructed using the object-oriented analysis and design approach. Accordint to the object model a three dimensional graphic model is developed with CAD tools such as Rhino and Pro/E. For the real-time image generation the optimized IRIS Performer 3D graphics library is embedded with the multi-thread methodology. Compared with the single loop apprach the proposed methodology yields an acceptable image generation speed 20 frames/sec for the simulator.

• 한국실천공학교육학회논문지
• /
• 제5권1호
• /
• pp.40-44
• /
• 2013

본 연구에서는 학습자가 가상공간 내에서 교육 컨텐츠를 자연스럽게 조작할 수 있는 멀티모달 인터페이스 제어모듈을 제시한다. 제안하는 모듈은 사용자가 가상공간과 인터랙션을 할 때 사용자의 모션을 인식하고 인식된 정보를 무선통신을 통하여 가상공간으로 전달한다. 제안하는 입력장치는 햅틱 액츄에이터를 탑재하고 있어 교육 컨텐츠와 사용자의 인터랙션에 따른 햅틱 감각을 생성하여 사용자가 교육용 컨텐츠들을 쉽게 조작할 수 있게 해 준다.

• 한국기계가공학회지
• /
• 제17권6호
• /
• pp.136-143
• /
• 2018

Recently, with the rapid development of virtual reality technology, there have been more and more applications of virtual reality technology in various fields. In order to realize a virtual reality, a method of implementing a visualization environment through an HMD (Head Mounted Display) is widely used. However, in the current visualization environment through the HMD, the user feels dizziness when worn, It has the disadvantage of imposing restrictions on. In this study, it is aimed to realize virtual reality visualization environment through multi-screen environment which improves the experience effect of virtual environment by using existing screen instead of visualization through HMD, and compensates for shortcomings of HMD method. In order to realize a multi-screen environment as a highly visualized environment, a technique for matching the spatial position of the multi-screen with the spatial position of the virtual environment is required. To do this, we need an efficient method to precisely measure the position of the space, and we propose a spatial position compensation methodology that can efficiently and precisely measure the position of the real space and reflect it in the virtual environment.

• Journal of Mechanical Science and Technology
• /
• 제15권4호
• /
• pp.448-458
• /
• 2001

The primary goal of virtual prototyping is to eliminate the need for fabricating physical prototypes, and to reduce cost and time for developing new products. A virtual prototyping seeks to create a virtual environment where the development of a new model can be flexible as well as rapid, and experiments can be carried out effectively concerning kinematics, dynamics, and control aspects of the model. This paper addresses the virtual environment used for virtual prototyping of a passenger vehicle. It has been developed using the dVISE environment that provides such useful features as actions, events, sounds, and light features. A vehicle model including features, and behaviors is constructed by employing an object-oriented paradigm and contains detailed information about a real-size vehicle. The human model is also implemented not only for visual and reach evaluations of the developed vehicle model, but also for behavioral visualization during a crash test. For the real time driving simulation, a neural network model is incorporated into the virtual environment. The cases of passing bumps with a vehicle are discussed in order to demonstrate the applicability of a set of developed models.

• 한국감성과학회:학술대회논문집
• /
• 한국감성과학회 2003년도 춘계학술대회 논문집
• /
• pp.84-89
• /
• 2003

The virtual reality(VR) technology can provide various stimuli, including, visual and auditory stimuli, simultaneously in the virtual environment and encourage the user to interact. Virtual reality is a set of computer technologies, which when combined, provide an interactive interface to a computer generated world. In this world the subject can see, hear and navigate in a dynamically changing environment in which he participates as an active player, by modifying the environment according to his will. Moreover, the subject can get a feeling for the virtual environment in much the same way as one feels real life situations. In the real world, a plethora of information from various modalities may be in conflict, and modulate each other to form an illusion. In this study we investigated whether a tactile illusion on a real hand could be evoked by a virtual stimulus, the time required to generate this illusion and its duration. This study shows that the illusion occurred, and that was correlated with presence score in the virtual environment.

• 문화기술의 융합
• /
• 제9권6호
• /
• pp.545-551
• /
• 2023

본 논문에서는 인터페이스 속의 가상환경을 현실로 옮겨오는 방법으로 환경인터페이스를 제시하고 실제 환경에서 감각할 수 있는 가상에 대한 경험을 설명하고자 한다. 실제 환경과의 구분 없는 가상을 표현하기 위한 인터페이스의 조건으로 인터페이스의 투명성과 공감각을 확대하는 상호 작용성에 대해 논의하고, 이러한 조건을 충족하는 환경인터페이스의 구성과 필연성에 대한 논의를 정립함으로서 확장된 경험을 유도하는 실제 환경에서 연장되는 인터페이스, 상호작용에 의한 환경으로의 인지 확대, 이 조건들로 인한 환경으로의 몰입을 위한 가상을 현실화하기 위한 도구로서 환경인터페이스에 대해 논의한다.

• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 2004년도 ICCAS
• /
• pp.1430-1434
• /
• 2004

Recently, Virtual reality parts is applied in various fields of industry. In this paper we developed basic components for virtual robot control system interfaced with real environment. For this, a real robot with virtual interface module is developed and virtual robot of similar image with real robot is created by putting on 3D graphic texture to the real robot. To build an unknown environment to be linked with virtual environment, we proposed a hough transformation based algorithm. Our proposed algorithm consists of navigation module by using fuzzy engine and map building module. Experiments using a developed robot illustrate the method.

• 디지털산업정보학회논문지
• /
• 제12권2호
• /
• pp.31-39
• /
• 2016

In this paper planed Virtual Reality user interface that recently hot issue using MVLS(Multipurpose Visual Language System). Proposed system is planed for more with ease approach new type environment system. The point of this system is for more few the number of time of act to get want to result. That is easy build for Virtual Reality environment system that user so far, who did not experience. Also too, application to the environment through Multipurpose Visual Language System based, can be required to increase the case of user of existing applications, not only a simple application infrastructure Virtual Reality. This has the advantage of being able to under Virtual Reality condition the environment for the use of a wide range of applications such as view TV, video and other contents. By using the proposed system, the experience in virtual realities that have not felt during the general public to be able to easily and quickly, virtual reality or 3D Expected to can one step closer to the needs of general and industry.

• 한국자동차공학회논문집
• /
• 제7권5호
• /
• pp.230-239
• /
• 1999

A virtual prototyping seeks to virtual environment where the development of vehicle models can be flecible as well as rapid and the experiments can be executed effectively concerning kinematics, controls, and behavior aspects of the models. This paper explains a virtual environment used for virtual prototyping of a vehicle. Ut has been developed using the dVISE environment thar provides actions, events, sounds, and light features. A vehicle model including detailed informations about a real-size vehicle. A human model is introduced for odjective visual evaluations of the developed, and then results are illustrated in order to demonstrate the applicability of developed models.

• 정보처리학회논문지A
• /
• 제14A권4호
• /
• pp.209-214
• /
• 2007

3차원 게임 프로그래밍에서 요구되는 가상환경 생성에 있어서 가상환경의 기능이 단순한 배경 제공의 기능 외에 실세계 환경과 직접적으로 관련되는 정보를 포함하는 것이 필요하다. 본 연구에서는 게임에서 실제 환경을 가시화한 가상환경에서 캐릭터가 진행할 때 가상환경에서의 지리적 위치를 알게 함과 동시에 환경과 관련된 정보를 실시간으로 제공하는 시스템을 구현한다. 이러한 기능은 가상환경이 특정 지역에서 고유한 정보를 보유할 수 있게 하고 환경의 조건에 따라 장면을 제어해갈 수 있는 점에서 시맨틱 가상 환경(Semantic Virtual Environment) 구현의 한 방법을 제공한다고 할 수 있다. 본 논문에서는 이러한 게임에서의 시맨틱 가상환경 구현을 목적으로 유비쿼터스 환경에서 위치기반 실시간 정보 입력을 가능하게 하는 시스템과 가상환경 내 특정 위치를 찾아 대화형으로 네비게이션을 제어할 수 있도록 해주는 방법에 대해 설명한다.