• Journal of Information Processing Systems
• /
• v.14 no.4
• /
• pp.980-988
• /
• 2018

Motion estimation is a key Natural User Interface/Natural User Experience (NUI/NUX) technology to utilize motions as commands. HTC VIVE is an excellent device for estimating motions but only considers the positions of hands, not the orientations of arms. Even if the positions of the hands are the same, the meaning of motions can differ according to the orientations of the arms. Therefore, when the positions of arms are measured and utilized, their orientations should be estimated as well. This paper proposes a method for estimating the arm orientations based on the Bayesian probability of the hand positions measured in advance. In experiments, the proposed method was used to measure the hand positions with HTC VIVE. The results showed that the proposed method estimated orientations with an error rate of about 19%, but the possibility of estimating the orientation of any body part without additional devices was demonstrated.

• Journal of Korea Game Society
• /
• v.20 no.2
• /
• pp.153-162
• /
• 2020

In this research, a VR game was developed to experience the fire evacuation from a fired building, intending calm and fast reaction in urgent fire situations. The user should move out through the fire door, stairs and corridors toward exit door using the VIVE controllers. When the user can't proceed the path because of fire flame or smoke, he/she should turn back to find another path. A building of Hoseo university was modeled and tests were carried out by students with polls focused on the usability and the effectiveness of this VR game. The result has been analyzed to show their responses.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
• /
• v.16 no.5
• /
• pp.247-255
• /
• 2023

In order to create a virtual reality space in the metaverse, accurate tracking sensors and implementation are required. Most government agencies and corporations performs tracking to use their own tracking sensors and a base stations, such as VIVE. The VIVE method may have tracking problems due to spatial constraints and obstacles or nearby structures, and it is also that the number of people that can be accommodated within the space is also limited. In this paper, we designed and implemented metaverse using an IR sensor tracking system to freely track the spatial virtual reality metaverse, and we experimented contents in metaverse by placing IR sensors additionally on the floor and ceiling if needed in order to flexibly configure the metaverse space. As a result of the experiment, the tracking stability of the IR-tracking system was approximately 12% higher than the VIVE method. Additionally, adding more tracking sensors on the floor increases tracking stability and allows for a stable representation of virtual space.

• Journal of the Korea Computer Graphics Society
• /
• v.22 no.5
• /
• pp.49-56
• /
• 2016

Mobile Virtual Reality Head Mount Displays such as Google Cardboard and Samsung Gear VR are being released, as well as PC-based VR HMDs such as Oculus Rift and HTC Vive. However, when the user wears HMD, it hides the external view of the user. Therefore, it may happen that the user is struck by the surrounding objects such as furniture, and there is no definite solution to this problem. In this paper, we propose a method to reduce the risk of injuries by visualizing the location and information of obstacles scanned by using a RGB-D camera.

• Journal of Korea Game Society
• /
• v.21 no.5
• /
• pp.41-48
• /
• 2021

This paper introduces a mobile augmented visualization technology that augments a three-dimensional virtual human body on a mannequin model using two pose(position and rotation) tracking sensors. The conventional camera tracking technology used for augmented visualization has the disadvantage of failing to calculate the camera pose when the camera shakes or moves quickly because it uses the camera image, but using a pose tracking sensor can overcome this disadvantage. Also, even if the position of the mannequin is changed or rotated, augmented visualization is possible using the data of the pose tracking sensor attached to the mannequin, and above all there is no load for camera tracking.

• Journal of Korea Game Society
• /
• v.19 no.2
• /
• pp.123-134
• /
• 2019

This study has the purpose of experiencing the presbyopia indirectly through VR games to understand the inconvenience caused by presbyopia to old people and experiencing also common eye diseases(cataract, glaucoma) to accomplish awareness of the eye health. Using VIVE, 3 mini VR games have been developed. Their effects have been analyzed by comparing states of before and after the experiments. By experiencing the developed VR games, most participants have understood sufficiently the symptoms and inconveniences of presbyopia as well as related diseases, especially high on glaucoma. The relative high scores of usabilities of the games on learning of manipulation, satisfiability, pressure and speed showed good possibility to be developed for better serious games.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2021.07a
• /
• pp.517-518
• /
• 2021

본 논문에서는 게임 개발 플랫폼인 언리얼 엔진 4을 사용하여 가상현실기술을 활용한 복싱 게임을 개발하였다. 복싱 게임을 더욱 실감나게 즐길 수 있도록 하기 위해 양 손에 부착한 VIVE 트래커로 복싱 동작을 모션 트래킹하여 아바타를 제어하였다. 게임 모드의 경우 연습모드와 스파링모드로 구성하였다. 연습모드에서 튜토리얼을 진행하여 게임플레이를 익힌 후 스파링모드에서 AI와 복싱 대결을 하도록 구현하였다. 스파링모드는 AI와 플레이어가 대결을 하며 먼저 체력을 소모시키면 승리하게 된다. 그리고 AI 캐릭터의 애니메이션 재생 속도에 따라 4가지 난이도를 설정할 수 있다. 가상현실 복싱게임은 VR기술을 이용하여 가정에서 간편하게 복싱 운동을 즐길 수 있으며, 더 많은 VIVE 트래커를 활용하면 정밀한 모션 트래킹이 가능하여 현실감을 높일 수 있다.

• Proceedings of the Korea Contents Association Conference
• /
• 2017.05a
• /
• pp.11-12
• /
• 2017

고구려 고분벽화는 유네스코 세계문화유산이지만 남북한의 정치적 이데올로기로 말미암아 지금은 현장 접근이 불가능하다. 이에 가상현실 기술을 이용, 실제와 같은 체험 콘텐츠로 제작하였다. 이것은 인터렉티브한 가상현실을 체험할 수 있도록 사용자가 자유자재로 공간을 걸어다닐 수 있는 워킹형 가상현실(Walking VR) 기술을 적용한 것이다. 이는 관람자가 HTC-Vive의 컨트롤러를 이용하여 가고자하는 고구려 고분속 여러 벽화를 자유자재로 선택 가능한 인터렉티브 체험도 가능한 디지털 헤리티지형 VR콘텐츠다.

• Proceedings of the Korean Magnetic Resonance Society Conference
• /
• 2000.01a
• /
• pp.9-11
• /
• 2000

• Proceedings of the Zoological Society Korea Conference
• /
• 1999.10b
• /
• pp.191.1-191
• /
• 1999

No Abstract, See Full Text