Mapping virtual and physical reality
| Autor: | Li-Yi Wei, Arie E. Kaufman, Qi Sun |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Cave automatic virtual environment
Redirected walking Computer science 05 social sciences Optical head-mounted display 020207 software engineering 02 engineering and technology Kernel virtual address space Virtual reality Software walkthrough computer.software_genre Computer Graphics and Computer-Aided Design Real-time rendering Rendering (computer graphics) Virtual machine Computer graphics (images) 0202 electrical engineering electronic engineering information engineering Immersion (virtual reality) 0501 psychology and cognitive sciences computer 050107 human factors ComputingMethodologies_COMPUTERGRAPHICS |
| Zdroj: | ACM Transactions on Graphics. 35:1-12 |
| ISSN: | 1557-7368 0730-0301 |
| DOI: | 10.1145/2897824.2925883 |
| Popis: | Real walking offers higher immersive presence for virtual reality (VR) applications than alternative locomotive means such as walking-in-place and external control gadgets, but needs to take into consideration different room sizes, wall shapes, and surrounding objects in the virtual and real worlds. Despite perceptual study of impossible spaces and redirected walking, there are no general methods to match a given pair of virtual and real scenes. We propose a system to match a given pair of virtual and physical worlds for immersive VR navigation. We first compute a planar map between the virtual and physical floor plans that minimizes angular and distal distortions while conforming to the virtual environment goals and physical environment constraints. Our key idea is to design maps that are globally surjective to allow proper folding of large virtual scenes into smaller real scenes but locally injective to avoid locomotion ambiguity and intersecting virtual objects. From these maps we derive altered rendering to guide user navigation within the physical environment while retaining visual fidelity to the virtual environment. Our key idea is to properly warp the virtual world appearance into real world geometry with sufficient quality and performance. We evaluate our method through a formative user study, and demonstrate applications in gaming, architecture walkthrough, and medical imaging. |
| Databáze: | OpenAIRE |
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