• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2000년도 Proceeding of CIN-KIN Joint Symposium 2000 on M.E.T. Under STCW 78/95 and SINO-KOREA MARITIME CONTACT IN MID-CENTURIES
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• pp.93-105
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• 2000

This paper describes prototype Virtual Reality Ship Simulator (VRSS) that we have recently developed next-generation training equipment based on the virtual reality (VR) technology. The inherent defects of conventional ship simulators are enormous costs and difficult system upgrade due to the system construction, such as large mock-up bridge system, wide visual presentations, In this paper, to cope with those problems, we explored VR technology that can give realistic environments in a virtual world. Then we constructed prototype VRSS system, which is, consists of PC-based human sensors, and Databases set having 3D object models and coefficients of Head Related Transfer Functions (HRTFs). 3D-WEBMASTER authoring tool was used as Virtual Reality Modeling Language (VRML). Using the VRSS system, we constructed Port an Passage Simulator for the harbor of INCHON in Korea, and Ship and Sea State Simulator for an arbitrary given sea environmental states by user. Through many simulation tests, we testified the efficiency of developed prototype VRSS by subject assessment with five participants. Then, we present results on the simulation experiments and conclude with discussion of evaluation results.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2016년도 춘계학술발표대회
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• pp.783-786
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• 2016

E-learning is a new teaching model nowadays, and Virtual Reality (VR) technology is reported that the use of virtual reality as an education tool can increase student interests, understanding, and creative learning because of encouraging students to learn by exploring and interacting with the information on the virtual environment. Besides that, LEGOs have long been the favorite of many children. LEGOs provide a mechanism to understand and do for many concepts from spatial relationships to robotics platforms. In this paper, we present a virtual reality application based on the assembly of LEGO-Like bricks to increase math and science learning by improving spatial thinking. It not only encourages students to pursue careers in science, technology, engineering, or mathematics but also enhances learner's ability to analyze and solve problems. The application is built by Processing 2.0 as the easier programming language which is a top-down approach to build the 3D interactive program.

• 한국위성정보통신학회논문지
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• 제11권4호
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• pp.33-38
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• 2016

전 세계적으로 통신체계 및 무선기기사용이 활성화됨에 따라 2.4GHz의 동일 대역을 사용하는 기기간의 간섭현상이 발생하게 되었다. 최근 기존의 전통 산업에 가상현실 기술을 접목한 신규 융합 콘텐츠 기술 발전으로, 교육, 전시, 방송, 테마파크 등 다양한 분야의 적용이 가능하며 연 평균 14% 이상의 성장률을 예상하고 있다. 가상현실 기기의 경우 부가적으로 모션센서나 무선 조이스틱을 이용하며 블루투스 통신을 이용하는 것으로 나타난다. 이에 따라 가상현실 기기에 사용되는 무선기기들과 현재 상용화된 와이파이 기반의 무선랜 사이의 간섭영향을 분석하였다. 간섭영향을 분석하기 위해 간섭시나리오와 확장된 하타 전파모델을 설정하였다. 몬테카를로 기반의 시뮬레이션을 수행하여 무선랜을 통하여 와이파이통신을 할 경우의 발생하는 간섭확률에 대해 분석하고, 가상현실 기기와 무선랜이 공존할 때 허용 가능한 가상현실 기기의 개수를 도출하였다.

• 디지털융복합연구
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• 제19권12호
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• pp.405-411
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• 2021

가상현실 기술은 20 세기에 개발 된 새로운 실용적인 기술이다. 최근에는 가상현실(VR) 기술의 지속적인 발전과 개선으로 관련 산업이 빠르게 발전하고 있으며, 가상현실 기술의 활용으로 실감나는 다양한 영상콘텐츠는 사용자에게 더 나은 시각적 경험을 제공하고 있다. 또한 상호 작용 및 상상력 측면에서 뛰어난 특성을 가지고 있어 영상콘텐츠 제작 분야에서 밝은 전망을 기대할 수 있다. 본 논문은 현 단계에서 VR 비디오의 디스플레이의 종류, 기술, 그리고 사용자가 VR 비디오를 보는 방법을 소개하였다. 더불어 과거 VR 장비와 현재 장비의 해상도 차이를 비교 분석하고 해상도가 VR 영상에 영향을 미치는 이유를 탐구하였다. 미래 VR 영상 발전 중에서 몇개 발전 방향을 제출하고 사람들에게 생활 편의를 제공할 것이다.

• 대한통합의학회지
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• 제5권3호
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• pp.1-9
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• 2017

Purpose: The purpose of this study was to investigate the effects of an immersive, virtual reality-based exercise program on range of motion and dexterity in the upper extremities of stroke patients. Methods: Fifteen patients with hemiparesis after stroke participated in this study. The participants participated in Rapael Semart GloveTM, an immersive, virtual reality-based exercise program, performed for 30 minutes-, 3 times per week for 4 weeks. The Rapael Smart GloveTM program and a Box and Block Test (BBT) were used to measure range of motion and to assess dexterity, respectively, pre-and post-intervention. Results: Range of motion in pronation and supination of the forearm and flexion, extension, and ulnar deviation of the wrist improved after the intervention. Dexterity measured by BBT also improved. However, range of motion in flexion and extension of the fingers and radial deviation of the wrist did not improve. Conclusion: This study presents the effects of an immersive, virtual reality-based exercise program on hand function. In the future, a study comparing an immersive, virtual reality- based exercise program to other upper-extremity interventions for stroke patients should be conducted. A study about the effects of an immersive virtual reality program on activities of daily living is also needed.

• 유통과학연구
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• 제21권10호
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• pp.85-95
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• 2023

Purpose: Virtual reality's impact on fashion distribution extends beyond singular transactions, facilitating the emergence of novel collaborations. As investigating the characteristics of fashion distribution channels in virtual reality, this study explores how the fashion industry can utilize virtual reality distribution channels to their maximum capacity while minimizing potential disadvantages. Research design, data, and methodology: The approach used to gather previous studies for this study adheres to the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) methodology. This method is widely acknowledged and recommended for its systematic and transparent approach to selecting relevant literature. This kind of literature search plays a vital role in a systematic evaluation as it informs the results. Results: The finding indicates consistently a total of eight kinds of characteristics of fashion distribution channels in virtual reality. The result means that the attributes of fashion distribution channels in virtual reality are causing significant changes in the fashion industry, revolutionizing the consumer experience, and redefining the parameters of creativity and collaboration. Conclusions: In sum, the global reach and accessibility of modern technology enhance the capacity of fashion companies to expand their market presence. This facilitates their participation in intercultural interactions and allows them to serve a wide range of customers.

• 한국정밀공학회지
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• 제17권7호
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• pp.80-89
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• 2000

Driving simulators provide engineers with a power tool in the development and modification stages of vehicle models. One of the most important factors to realistic simulations is the fidelity obtained by a motion bed and a real-time visual image generation algorithm. Virtual reality technology has been widely used to enhance the fidelity of vehicle simulators. This paper develops the virtual environment for such visual system as head-mounted display for a vehicle driving simulator. Virtual vehicle and environment models are constructed using the object-oriented analysis and design approach. Based on the object model, a three-dimensional graphic model is completed with CAD tools such as Rhino and Pro/ENGINEER. For real-time image generation, the optimized IRIS Performer 3D graphics library is embedded with the multi-thread methodology. The developed software for a virtual driving simulator offers an effective interface to virtual reality devices.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2001년도 춘계학술대회논문집C
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• pp.213-218
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• 2001

VR (Virtual reality) technologies have given engineers the ability to design, test, and evaluate engineering systems in a virtual environment. The virtual plant is the highlight of the application of the VR technology to plant engineering. Plant design, maintenance, control, management, operation are integrated in the virtual plant. The VR monitoring system including the concept of the virtual plant is developed to replace a current control room that has number of gages and warning lamps in two-dimensional panels which shows the operating status of a plant. The operating status of the plant is displayed in the VR monitoring system through the realistic computer graphics. Sophisticated, realistic and prompt control becomes possible. The VR monitoring system consists of advanced visualization, walk-through simulation and navigation. In the virtual environment, a user can navigate and interact with each component of a plant. In addition, the user can access the information by just clicking interesting component. The VR monitoring system is operated with various modules, such as (1) virtual plant constructed with Graphic Management System (GMS), (2) Touch & Tell System, and (3) Equipment DB System of Part. In order to confirm the usefulness of the VR monitoring system, a pilot gas plant which is currently being used for plant operator training is taken as application. The end of the paper gives an outlook on the future work and a brief conclusion.

• 한국융합학회논문지
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• 제12권11호
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• pp.285-289
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• 2021

본 논문에서는 항공소프트웨어 인증 규정 발전 동향을 파악하고, 증강현실 및 가상현실 소프트웨어의 항공정비 산업 적용을 위해 항공에 최적화된 인증 규정을 소개한다. 이 규정은 항공정비 산업에 적용된 증강현실 및 가상현실 소프트웨어에 엄격한 인증 규정을 적용함으로써 항공정비 산업에 적용된 증강현실 및 가상현실 소프트웨어의 안정성과 신뢰성을 제공할 것으로 기대된다. 기존에 사용되는 DO-178B, DO-178C가 규정하기 힘든 문제들을 고려한 인증 규정을 제시하고자 한다.

• 한국융합학회논문지
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• 제7권1호
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• pp.25-30
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• 2016

가상현실의 기술에 있어서는 미국을 필두로 한 독식형 시장 그리고 유니버셜 등의 가상현실 아이템들이 증가하고 있는 추세이다. 다인칭의 사용자가 시각, 촉각, 청각, 운동감 등 온 몸으로 직접 체험을 하며 콘텐츠에 깊게 빠져들어 즐길 수 있는 새로운 형태의 콘텐츠 플랫폼을 개발해야 하며 관람객이 수동적으로 콘텐츠를 즐기는 것이 아니라 능동적으로 콘텐츠에 직접 참여하여 몰입도를 극대화 시킬 수 있는 콘텐츠 개발을 해야 한다. 이를 위해 $360^{\circ}$서클비전, 입체영상, 인터렉션, 시뮬레이터, 환경 Effect 등의 모든 요소가 혼합된 새로운 형태의 5D 가상현실 어트렉션 콘텐츠의 개발이 필요하며 이를 위한 색상 및 밝기 보정 기술 방법들을 제안하고자 한다.