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Published on Dec 17, 2009
Sandor, C., Uchiyama, S., and Yamamoto, H. Visuo-Haptic Systems: Half-Mirrors Considered Harmful In WHC '07: Proceedings of the Second Joint EuroHaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, 2007
In recent years, systems that allow users to see and touch virtual objects in the same space (visuo-haptic sys- tems) are being investigated. Most research projects are employing a half-mirror, while few use a video see- through, head-mounted display (HMD). The work pre- sented in this paper points out advantages of the HMD- based approach. First, we present an experiment that an- alyzes human performance in a target acquisition task. We have compared a half-mirror system with an HMD system. Our main finding is, that a half-mirror signifi- cantly reduces performance. Second, we present an HMD- based painting application, which introduces new interac- tion techniques that could not be implemented with a half- mirror display. We believe that our findings could inspire other researchers, employing a half-mirror, to reconsider their approach.