Mid-air interaction is a distinct style of natural HCI (Human-Computer Interaction). In mid-air
interaction, users make use of their whole body—with a strong focus on hands—and apply …

3D gesture based systems are becoming ubiquitous and there are many mid-air hand
gestures that exist for interacting with digital surfaces and displays. There is no well defined …

Eye gaze and head movement are attractive for hands-free 3D interaction in head-mounted
displays, but existing interfaces afford only limited control. Radi-Eye is a novel pop-up radial …

In this paper, we present PathSync, a novel, distal and multi-user mid-air gestural technique
based on the principle of rhythmic path mimicry; by replicating the movement of a screen …

Intuitive use is a notoriously vague concept. Several research groups have been develo**
a wealth of definitions and ways of measuring intuitive use that show only few …

We designed a mid-air input space for restful interactions on the couch. We observed people
gesturing in various postures on a couch and found that posture affects the choice of arm …

Digital menu boards (DMB) are convenient for customers as well as sellers. In this paper, we
have implemented a DMB using IR-UWB transceivers. Unlike the traditional touch-based …

Model-based evaluation has been widely used in HCI. However, current predictive models
are insufficient to evaluate Natural User Interfaces based on touchless hand gestures. The …

People use touchless input when interacting with virtual or augmented reality. During those
interactions, they may alternate between hands or use both hands simultaneously. How …

This chapter surveys the main methods and techniques for gesture‐based computing. We
consider both mid‐air and touch‐based gestures. The survey includes techniques for …