Exploring Geometric Shapes with Touch
This addresses a domain-specific problem for visually impaired users, but the results are incremental with limited improvements.
The paper tackled the problem of exploring geometric shapes without vision by proposing a new technique using directional cues with a pin array, and found that users made fewer errors in unimanual conditions compared to bimanual conditions, but there was no difference in speed or confidence.
We propose a new technique to help users to explore geometric shapes without vision. This technique is based on a guidance using directional cues with a pin array. This is an alternative to the usual technique that consists of raising the pins corresponding to dark pixels around the cursor. In this paper we compare the exploration of geometric shapes with our new technique in unimanual and bimanual conditions. The users made fewer errors in unimanual condition than in bimanual condition. However they did not explore the shapes more quickly and there was no difference in confidence in their answer.