We introduce a novel touch-based interaction technique for tangible user interfaces (TUIs) in Augmented Reality (AR) applications. The technique allows for direct access and manipulation of virtual content on a registered tracking target, is robust and lightweight, and can be applied in numerous tracking and interaction scenarios.

This paper introduces ComposAR, a tool to allow a wide audience to author AR and MR applications. It is unique in that it supports both visual programming and interpretive scripting, and an immediate mode for runtime testing. ComposAR is written in Python which means the user interface and runtime behavior can be easily customized and third-party modules can be incorporated into the authoring environment. We describe the design philosophy and the resulting user interface, lessons learned and directions for future research.

The Magic Lens concept is a focus and context technique which facilitates the visualization of complex and dense data. In this paper, we propose a new type of 3D tangible Magic Lens in the form of a flexible sheet. We describe new interaction techniques associated with this tool, and demonstrate how it can be applied in different AR applications.

Transitional Interfaces have emerged as a new way to interact and collaborate between different interactive spaces such as reality, virtual reality and augmented reality environments. In this paper we explore this concept further. We introduce a descriptive model of the concept, its collaborative aspect and how it can be generalized to describe natural and continuous transitions between contexts (e.g. across space, scale, viewpoints, and representation).

We describe the AR Mask, a novel handheld augmented reality (AR) input and display device that not only provides support for a full range of traditional interaction techniques, but also facilitates new metaphors. Unlike other AR display and input technologies, our device consolidates input and output within a single piece of hardware. We demonstrate how this design provides a closed control loop between the user's input modalities and natural sensory receptors.