Principles of haptic perception in virtual environments
During haptic interaction with everyday environments, haptic perception relies on sensory signals arising from mechanical signals such as contact forces, torques, movement of objects and limbs, mass or weight of objects, stiffness of materials, geometry of objects, etc. (Fig. 1a). In contrast, haptic perception in Virtual Environments (VEs) relies on sensory signals arising from computer-controlled mechanical signals produced by haptic interfaces (see Fig. 1b, the online animation  under Selected Readings and Websites, and [1, 2]). Haptic interfaces are programmable systems, which can reproduce mechanical signals that are normally experienced when haptically exploring real, everyday environments. Perhaps more importantly, haptic interfaces can create combinations of mechanical signals that do not have counterparts in real environments. This allows creating haptic VEs in which entirely new haptic sensory experiences are possible.
KeywordsContact Force Virtual Environment Lateral Force Real Object Virtual Object
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Selected readings and Websites
- Animated explanation of haptic technology essentials. 3 April 2007. http://www.roblesdelatorre.com/gabriel/ch.htmlGoogle Scholar
- Haptics-L: the Electronic Mailling List for the International Haptics Community. 3 April 2007. http://www.roblesdelatorre.com/gabriel/hapticsl/Google Scholar
- International Society for Haptics. 3 April 2007. http://www.isfh.orgGoogle Scholar