Tangible Images: Bridging the Real and Virtual Worlds

Abstract

In this paper we describe our efforts to create tangible imaging systems that provide rich virtual representations of real-world surfaces. Tangible imaging systems have three main properties: 1) the images produced must be visually realistic; 2) the images must be responsive to user interaction; and 3) the images must be situated, appearing to be integrated with their environments. Our current system, based on a computer, LCD display, light and position sensors, and graphics rendering tools meets all these requirements; supporting the accurate simulation of the appearances of surfaces with complex textures and material properties, and allowing users to interact with and experience these virtual surfaces as if they were real ones. We first describe the components of our current system and its implementation. We then illustrate the system's capabilities for simulating the appearances and behaviors of real-world surfaces. Finally we describe some potential applications of tangible imaging systems and discuss limitations and future work.

Cultural and architectural heritage conservation and restoration: which colour?

“…The final observation is from the Ferwerda and Darling proposed framework, which aims to develop imaging technology that bridges the real and virtual worlds 41 . The authors identified three requirements: (a) the images produced by the systems must be realistic, accurately representing the shapes and material properties of the modelled surfaces; (b) the images must be responsive, changing appearance appropriately with direct manipulation and changes in the observer viewpoint; and (c) the images must be situated, appearing to be an integral part of the observer's environment.…”