High-Resolution Interactive Displays

Abstract

Tabletop displays are mostly used for casual applications that do not require intricate graphics or precise manipulation. Browsing photographs and maps are common applications. A higher resolution is required to support work involving detailed graphics and text. A display the size of a desk, with the resolution of a typical LCD monitor, will have around 14 megapixels. Tabletop displays are usually constructed from projectors, and the only way to achieve this size and resolution is to combine multiple projectors. We present techniques from multiprojector display walls and adapt them for tabletops. These high-resolution displays also require high-resolution input, and although touch is simple and natural, better accuracy can generally be achieved using a pen. We also review technologies for pen input on tabletops.

Supporting active reading on pen and touch-operated tabletops

“…We think this issue of resolution depth, both for display and input capturing, is critical and needs to be addressed by tabletop manufacturers if they are to support a wider range of applications requiring high-quality rendering of object details such as AR and generally document-centric applications. A possible yet more expensive solution for the viewing problem could be to utilise high-definition projectors or multi-projector displays [2]. As for sensing, Anoto technology, which was initially designed for asynchronous recording of pen inking on paper, has been adapted to support streaming position data, but because it relies on a printed dot pattern it is not ideal to integrate with touchscreen systems.…”

Applications of Multi-Touch Tabletop Displays and Their Challenging Issues: An Overview

“…The tabletop displays technologies assist in utilizing the potential of both finger and pen touch input separately but restricts their simultaneous use for selection and manipulation of digital contents. There is also difference in user's performance while using finger gesture and pen touch input [81].…”

“…They are also potentially used for monitoring and managing the natural disasters (e.g. earthquake)[79][80] and military applications[81][82]. The potential use of tabletop displays in different domains clearly suggesting that these systems can also be practically used in offices and homes at regular basis to perform a co-located collaborative work and enhance social skills.…”

Visual data analysis supported by eye-tracking, multi-touch displays, and machine learning

“…If the screen is not high-resolution, the user experience of near distance interaction decreases significantly. For instance, on screens with less than sixty pixels per inch, the user is not able to read from the screen up-close [Ashdown et al 2010]. Furthermore, users can make more observations with less effort using physical navigation (e.g., walking) rather than virtual [Reda et al 2015].…”