Khrystyna Vasylevska

• Master of Science
• PhD Student at TU Wien

We present a novel shape-shifting haptic device, Shiftly, which renders plausible haptic feedback when touching virtual objects in Virtual Reality (VR). By changing its shape, different geometries of virtual objects can be approximated to provide haptic feedback for the user's hand. The device employs only three actuators and three curved origamis...

In the context of digitalization in the industry, a variety of technologies has been developed for system integration and enhanced team collaboration in the Architecture, Engineering and Construction (AEC) industry. Multidisciplinary design requirements are characterized by a high degree of complexity. Early design methods often rely on implicit or...

Creating high quality virtual reality (VR) experience takes time and requires extensive practice. Although, multiple virtual and augmented reality courses existed for years all over the world, high costs of the equipment were always in the way of building up the up to date knowledge. Rapid development of the technology caused the new VR boom and ex...

In practice, real-world physical workspaces and technological limitations restrict the free and unlimited exploration of an arbitrary large-scale virtual environment. This article provides an overview of the existing approaches and techniques for enlarging the walkable virtual space. The authors specifically focus on the methods that use spatial ma...

Space available for any virtual reality experience is often strictly limited and abridges the virtual world to a size of a room. To extend the amount of virtual space accessible by walking within the same real workspace the methods of spatial compression were proposed. Scene manipulation with a controlled spatial overlap has been shown to be an eff...

We present preliminary results of work on a low-cost multi-user immersive Virtual Reality system that enables collaborative experiences in large virtual environments. In the proposed setup at least three users can walk and interact freely and untethered in a 200 m2 area. The required equipment is worn on the body and rendering is performed locally...

Real walking in large virtual indoor environments within a limited real world workspace requires effective spatial compression methods. These methods should be unnoticed by the user. Scene manipulation that creates overlapping spaces has been suggested in recent work. However, there is little research focusing on users' perception of overlapping sp...

In many virtual reality applications the virtual world is larger than the available physical workspace. Multiple mechanical solutions have been developed to support the exploration of large virtual environments. However, real walking is still the most immersive way of supporting locomotion in a virtual environment. Redirected walking techniques ena...

A sense of spatial presence as a feeling of " being there " is an important part of the virtual experience. Navigation is a fundamental task in virtual environments and the specific navigation methods that are employed influence a user's sense of presence. In this paper we investigate how different metaphors for vertical navigation impact spatial p...

Redirected walking techniques enable natural locomotion through immersive virtual environments (VEs) that are larger than the real world workspace. Most existing techniques rely upon manipulating the mapping between physical and virtual motions while the layout of the environment remains constant. However, if the primary focus of the experience is...

In this paper we introduce the concept of flexible spaces - a novel redirection technique that generalizes the use of overlapping (impossible) spaces and change blindness in an algorithm for dynamic layout generation. Flexible spaces is an impossible environment that violates the real world constancy in favor of providing the experience of seamless...