• 한국방송∙미디어공학회:학술대회논문집
• /
• 한국방송공학회 1997년도 Proceedings International Workshop on New Video Media Technology
• /
• pp.83-88
• /
• 1997

In this study, we focus on precise and natural cooperative object manipulation in a virtual space. We introduce two virtually expanded physical laws-virtual mechanical equilibrium on a rigid object and exclusive object arrangement-to create realistic cooperative manipulation. We have built a trial system according to our proposed design. The method is expected to allow users to exchange intended manipulation by haptic and visual channels.

• 한국정보시스템학회지:정보시스템연구
• /
• 제31권2호
• /
• pp.19-43
• /
• 2022

Purpose Due to the COVID-19 pandemic, many companies are building virtual workplaces based on virtual reality technology. Through this study, we intend to identify the trend of convergence and convergence research between virtual reality technology and work space, and suggest future promising fields based on this. Design/methodology/approach For this purpose, 12,250 bibliographic data of research papers related to Virtual Reality (VR) and Workplace were collected from Scopus from 1982 to 2021. The bibliographic data of the collected papers were analyzed using Text Mining and Pathfinder Network, Parallel Neighbor Clustering, Nearest Neighbor Centrality, and Triangle Betweenness Centrality. Through this, the relationship between keywords by period was identified, and network analysis and visualization work were performed for virtual reality-based workplace research. Findings Through this study, it is expected that the main keyword knowledge structure flow of virtual reality-based workplace convergence research can be identified, and the relationship between keywords can be identified to provide a major measure for designing directions in subsequent studies.

• 한국의류산업학회지
• /
• 제21권1호
• /
• pp.59-66
• /
• 2019

The purpose of this study was to develop slacks pattern of elderly women aged over 60s by using the virtual twin and 3D virtual garment simulation system. The results were as follows; first, By using 3D Virtual Garment Simulation, new slacks pattern considered elderly women was development. The basic numerical formula were as follows, front waist girth W/4+2+1.5, back waist girth W/4+1.5+0.5, front hip girth H/4+0.75, back hip girth H/4+1.5, front crotch extension H/16-0.5, back crotch extension H/8-1.3, front dart amount 2 and back dart amount 1.5. Second, according to the results of the new slacks pattern's appearance evaluation, it estimated more highly than existing pattern in silhouette and ease amount, confirming that new slacks pattern is appropriate for the elderly women. Also, new slacks pattern was evaluated to allow proper space length of waist, abdomen and hip. Virtual models production through 3D body scan data, pattern draft and virtual garment digital program were applied to prototypic design method so as to enhance the fitness of ready-made garments. The use of the virtual twin made it impossible to comprehend the appearances and ease correspondent to motions. In order to evaluate wearing fitness, therefore, the system should be improved so as to change arm positions and perform various motions.

• 한국의류산업학회지
• /
• 제12권6호
• /
• pp.789-795
• /
• 2010

The purpose of this study was to examine the appropriate surplus of clothing for a jacket bodice pattern of middle-aged obese men by using the 3D virtual twin and virtual garment simulation system. The results were as follows ; 1. BMI rate of middle-aged males was 28.13 which was equivalent to mild obesity, whereas WHR(W/H ratio from waist to hips) rate was near 1.00 which was highly dangerous against their obesity. In case of middle-aged obese men, the WHR was significantly higher than the entire middle-aged men's average and the section shape in which their thickness was relatively more than width. 2. As a result of appearances evaluation through virtual garment simulation, the cut-off amount of the side seam and the center back was regulated accordingly. Hereby, the final tolerance range was set up at 21.15 cm at the hips, so that the appearances became better and the bilateral distribution of the cross section and space length was formed symmetrically. Especially in case of increasing the cross amount of hems to produce a natural silhouette of the waist-to-hips parts, the ease of buttocks was judged to be moderate, but it turned out that a wavy cross section was made and the silhouette was not good. Thus it was found to be not good that the ease of the hips became excessively increased in proportion as circumference of waist and belly were increased in obesity. The use of the virtual twin made it impossible to comprehend the appearances and ease correspondent to motions. In order to evaluate wearing fitness, therefore, the system should be improved so as to change arm positions and perform various motions.

• 융합정보논문지
• /
• 제7권3호
• /
• pp.111-116
• /
• 2017

본 연구는 관광객이 문화 관광지에서 구매한 수베니어에 가상현실 콘텐츠를 접목하여 단순한 전시용도가 아닌 새로운 상품으로서의 가능성을 제시하였다. 수베니어를 연계하여 VR Viewer를 착용한 증강현실 콘텐츠 재생 및 가상현실 기술 기반의 문화 관광지 가상체험 서비스를 구현하였으며, 사용자가 가상공간에서 몰입감을 높일 수 있는 4K급 고품질 $360^{\circ}$영상 촬영, 가상현실 공간 구현 및 IMU(Inertial Measurement Unit)센서를 이용한 사용자와의 직관적인 UI 인터랙션이 가능하게 하였으며, 가상공간에 3D 콘텐츠 및 다양한 부가기능 부여 및 비즈니스 모델에 맞춘 기술개발을 통해 상품성을 향상시키고, 향후 다양한 타 분야 접목이 가능하도록 하였다. 또한, 사용자가 구매할 수베니어와 VR viewer는 본 연구에서 제작할 콘텐츠가 반영되도록 3D 프린터 등을 활용해 별도의 제작공정을 들여 프로토타입 형태로 제작하고, 이 후 기성품 사용 등을 위한 해당 기업과의 협의 등을 통해 다양한 상품으로 확장 고려될 수 있을 것으로 판단된다.

• 인터넷정보학회논문지
• /
• 제2권5호
• /
• pp.31-39
• /
• 2001

인터넷 가상 현실을 기반으로 하는 각 분야에서의 활동은 너무도 왕성하다. 교육분야도 예외는 아니어서 원격 강의 형태로 그 활동이 단발적으로 나타나다가 이제 가상 대학의 설립이란 본격적인 단계로 진입했다. 건축 교육도 일부 그 대열에 합류하고 있지만 유독 건축 설계 교육에서는 그렇지 못했다. 물론 그것은 3차원인 공간이 2차원인 웹 상에서 구현되는 것에 제약이 많이 따랐기 때문이다. 그러나, 근자에 인터넷 기술의 발달로 이런 제약이 사라졌다. 따라서, 건축 설계 교육에서도 인터넷을 기반으로 원격 강의를 실현할 수 있게 되었다. 이번 연구는 인터넷 가상 현실의 장점을 활용하여 건축 설계 교육방법을 기존에서 진일보시킬 수 있는 기반이 되는 것을 목적으로 한다.

• 대한임베디드공학회논문지
• /
• 제5권4호
• /
• pp.175-184
• /
• 2010

This paper designs a virtual USB drive for mobile devices which gives an illusion of a traditional USB flash memory drive and provides capacity-free storage space over IP network. The virtual USB drive operating with a S3C2410 hardware platform and embedded linux consists of USB device driver, an iSCSI-enabled network stack, and a seamless USB/iSCSI tunneling module. For performance enhancement, it additionally provides a kernel-level seamless USB/iSCSI tunneling module and data sharing with symbol references among kernel modules. Experiments reveal that the kernel-level implementation can improve the I/O performance up to 8 percentage, as compared with the user-level implementation.

• 한국전기전자재료학회:학술대회논문집
• /
• 한국전기전자재료학회 1998년도 춘계학술대회 논문집
• /
• pp.275-278
• /
• 1998

In recent years, miniaturization has become the key factor in the development of mobile communication system. Portable communications and computing devices suffer from two conflicting requirements which are device size to be as small as possible and large, high resolution display. These problems can be solved by virtual display. Any display in which the user views an image through an optical system is a virtual display. It provides a display which is high resolution, appears large to the viewer and at the same time occupies little physical space. In this study, handhold units of mobile communication was investigated through use of the SLA(Scanned Linear Array). The basic SLA mechanism comprises a linear array of LED's, a magnifying lens, and a scan mirror. To optimize virtual image, we investigated optical system design and operating condition for each part.

• 대한건축학회논문집:계획계
• /
• 제35권12호
• /
• pp.55-64
• /
• 2019

The purpose of this study was to analyze the affection of plan configuration on human emotion using Virtual Reality. A total of four different plan configuration was selected according to the prior study and built using Virtual Reality. The EEG was measured and then calculated using FFT to measure human emotion in different plan configurations. The measurements were shown to lead there was a significant statistical difference in four types of brainwaves between the plan types(p<0.05). This indicates that there is a possibility of plan configuration may exacerbate psychological disorder among single-person household and suggests that it is possible to counteract those stress among single-person household by changing the plan configuration in the earlier designing stage.

• Journal of information and communication convergence engineering
• /
• 제20권3호
• /
• pp.189-194
• /
• 2022

As non-face-to-face activities have become commonplace, online video conferencing platforms have become popular collaboration tools. However, existing video conferencing platforms have a structure in which one side unilaterally exchanges information, potentially increase the fatigue of meeting participants. In this study, we designed a video conferencing platform utilizing virtual reality (VR), a metaverse technology, to enable various interactions. A virtual conferencing space and realistic VR video conferencing content authoring tool support system were designed using Meta's Oculus Quest 2 hardware, the Unity engine, and 3D Max software. With the Photon software development kit, voice recognition was designed to perform automatic text translation with the Watson application programming interface, allowing the online video conferencing participants to communicate smoothly even if using different languages. It is expected that the proposed video conferencing platform will enable conference participants to interact and improve their work efficiency.