Tactile Rendering of 3D Features on Touch Surfaces

Authors

Seung-Chan Kim (Disney Research Pittsburgh, KAIST)
Ali Israr (Disney Research Pittsburgh)
Ivan Poupyrev (Disney Research Pittsburgh)

ACM Symposium on User Interface Software and Technology (ACM UIST) 2013

October 8, 2013

Tactile Rendering of 3D Features on Touch Surfaces-Image
 

We present a tactile-rendering algorithm for simulating 3D geometric features, such as bumps, on touch screen surfaces. This is achieved by modulating friction forces between the user’s finger and the touch screen, instead of physically moving the touch surface. We proposed that the percept of a 3D bump is created when local gradients of the rendered virtual surface are mapped to lateral friction forces. To validate this approach, we first establish a psychophysical model that relates the perceived friction force to the controlled voltage applied to the tactile feedback device. We then use this model to demonstrate that participants are three times more likely to prefer gradient force profiles than other commonly used rendering profiles. Finally, we present a generalized algorithm and conclude the paper with a set of applications using our tactile rendering technology.

 

Download File "Tactile Rendering of 3D Features on Touch Surfaces-Paper"
[pdf, 9.78 MB]

Projects

Copyright Notice

The documents contained in these directories are included by the contributing authors as a means to ensure timely dissemination of scholarly and technical work on a non-commercial basis. Copyright and all rights therein are maintained by the authors or by other copyright holders, notwithstanding that they have offered their works here electronically. It is understood that all persons copying this information will adhere to the terms and constraints invoked by each author's copyright. These works may not be reposted without the explicit permission of the copyright holder.