The virtual white cane is a range sensing device based on active triangulation, that can measure distances at a rate of 15 measurements/second. A blind person can use this device ...
The shape of an object may be estimated by observing the shadows on its surface. We present a method that is robust with respect to a conservative classification of shadow regions...
Silvio Savarese, Holly E. Rushmeier, Fausto Bernar...
This paper describes a technique to represent relevant information of tree-like structures in a compact way. The technique is general. In the application described here, the image...
Interactive applications such as virtual reality systems have become popular in recent years. A ground surface composed of a granular material can be deformed when it comes into c...
This article describes a few techniques to transform daily life objects into tactile interfaces, and presents the implementation details for three objects chosen as example: a ligh...