In this article, we review the current technology underlying surface haptics that converts
passive touch surfaces to active ones (machine haptics), our perception of tactile stimuli …

Raycasting is the most common target pointing technique in virtual reality environments.
However, performance on small and distant targets is impacted by the accuracy of the …

Tactile relief maps are used by visually impaired people to acquire mental representation of
space, but they retain important limitations (limited amount of information, braille text, etc.) …

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 …

We present the STIMTAC, a touchpad device that supports friction reduction. Contrary to
traditional vibrotactile approaches, the STIMTAC provides information passively, acting as a …

We present GelTouch, a gel-based layer that can selectively transition between soft and stiff
to provide tactile multi-touch feedback. It is flexible, transparent when not activated, and …

Moving a slider to set the music volume or control the air conditioning is a familiar task that
requires little attention. However, adjusting a virtual slider on a featureless touchscreen is …

When a substrate is excited to exhibit more than 1 µm out-of-plane displacement at an
ultrasonic frequency, a silent change of friction force could be clearly felt by human fingers …

Multimodal interactive maps are a solution for presenting spatial information to visually
impaired people. In this paper, we present an interactive multimodal map prototype that is …

This paper presents the design of a transparent tactile stimulator, based on the friction
reduction between the fingertip and the active surface. With such a design, the ratio between …