The HCI Society of Korea
Center of Human-centered interaction for Coexistence

International Symposium on Ubiquitous Virtual Reality (ISUVR) is an international symposium for state of the art in research on ubiquitous virtual reality.  Emerging ubiquitous computing paradigm accelerates the convergence of different technologies to enrich the quality of services and user experience.  With this trends, for the past years, International Symposium on Ubiquitous Virtual Reality (ISUVR) has been a successful event where participants can exchange interdisciplinary research ideas about "Ubiquitous VR" with other researchers from different backgrounds.

Session 4: ISUVR Special Session
FRI 15:40 - 17:00 / Crane

Bare-hand User Interface for 3D Sculpting in Wearable AR

Hyung-il Kim, Graduate School of Culture Technology, KAIST, South Korea

In this paper, we present bare-hand user interface for 3D virtual sculpting in wearable augmented reality (AR). In our system, users can directly use their bare hands in air to generate free form sculptural forms, and can use hand gestures to navigate the interface. Unlike virtual reality (VR)-based systems, users can directly generate their own forms into real word environment, and can use both hands simultaneously to sculpt or manipulate their own virtual creations. For sculpting interface, we mapped hand posture and gestures to specific tools for sculpting. Our system uses a head-mounted display (HMD) to render virtual contents, and also uses a RGB-D head-mounted display to detect real world space and user’s hand in 3D space.

Toward Invoking Subspace: Space Acquisition with Bare-hand Input in Wearable Augmented Reality

Hyeongmook Lee, Graduate School of Culture Technology, KAIST, South Korea

In this paper, we introduce a novel subspace acquisition with bare-hand input for invoking target space including multiple object-of-interests. Differ from virtual reality, users in augmented reality have to follow geometric context of physical objects when they directly access to virtual objects onto real space. The concept of invoking subspace, alleviating physical boundary of merged virtual space onto real space, is to isolate an interesting 3D area including object-of-interests as linked virtual space instantly. As the key technology, we address that subspace acquisition of cuboid form by using pinch-tip pointers enables to improve naturalness and efficiency in invoking phase. We expect that invoking subspace can be a spatial tool supporting smooth integration between selection and manipulation of the focused area with any object composition shown on wearable display in various modeled spaces.

Remote Guide System based on Hand Motion Tracking in Augmented Reality

Gabyong Park, Graduate School of Culture Technology, KAIST, South Korea

This paper proposes remote guide system in augmented reality based on hand tracking. We have focus on using hand motion tracking and its application such as remote guide. The target
of previous applications with hand tracking is mainly a local user. Our target domain is expanded and larger than previous one. From the camera tracking, shared world coordinate is set, and hand pose and motion is estimated with model based approach. Finally, our system let the user to collaborate with another user with their hand in remote space.

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