The ASPECTA toolkit

Abstract

Full Coverage Displays (FCDs) cover the interior surface of an entire room with pixels. FCDs make possible many new kinds of immersive display experiences -but current technology for building FCDs is expensive and complex, and software support for developing full-coverage applications is limited. To address these problems, we introduce ASPECTA, a hardware configuration and software toolkit that provide a low-cost and easy-to-use solution for creating full coverage systems. We outline ASPECTA's (minimal) hardware requirements and describe the toolkit's architecture, development API, server implementation, and configuration tool; we also provide a full example of how the toolkit can be used. We performed two evaluations of the toolkit: a case study of a research system built with ASPECTA, and a laboratory study that tested the effectiveness of the API. Our evaluations, as well as multiple examples of ASPECTA in use, show how ASPECTA can simplify configuration and development while still dramatically reducing the cost for creators of applications that take advantage of full-coverage displays.

Pointing All Around You

“…The remaining wall (the front wall, which is one of the narrow walls) was projected from a separate Sony VPL-FH35, 5,200 lumens projector. The projection mapping and the experimental software were implemented using the ASPECTA Toolkit [39]. A diagram of the layout of the experimental environment can be seen in Figure 1.…”

“…. $15.00 DOI: https://doi.org /10.1145/3173574.3174107 are starting to be well supported by toolkits (e.g., RoomAlive [54], ASPECTA [39]) that enable transforming regular rooms into spaces where most of the surrounding physical space can be used to display or overlay digital information. The potential benefits of these spaces include extending the digital workspace into the physical world, augmenting world objects with digital information and capabilities, and taking advantage of natural human abilities such as spatial memory, use of landmarks, and the sensitivities of different areas of the visual field [20,39].…”

A Comparison of Notification Techniques for Out-of-View Objects in Full-Coverage Displays

“…Full-Coverage Display interfaces originated with CAVEs [12] but, inspired by Raskar et al 's "office of the future" vision [48], the ideas behind FCDs are now applied beyond dedicated immersive rooms, to work environments and domestic spaces. In the last two decades there has been increasing research interest in larger and larger areas of work space, starting with smart rooms [27,49,55] and multi-display environments [39,41], and evolving towards spaces where almost any surface can display digital information [28,43,60,62,63]. Most of the research focuses on the issues of input [39,42,49,63], technical infrastructure and display technology [27,28,43,60], and the models of collaboration and display space management [13,41].…”

“…The remaining wall (the front wall, which is one of the narrow walls) was projected using a separate Sony VPL-FH35, 5,200-lumen projector (see Figure 4). The projection mapping and the experimental software were implemented using the ASPECTA Toolkit [43]. Participants sat on a fully rotating chair in the middle of the room, wearing a pair of over-ear headphones with markers tracked by a set of 6 OptiTrack S250:E cameras, which provided a continuous stream of head tracking data to the experimental computer.…”

“…However, the radically different geometry of FCDs compared to traditional screens means that interfaces and interaction techniques need to be redesigned for the new environment. For example, input devices need to accommodate looking and turning anywhere in the room [42], and layout and placement schemes must take into consideration the physical objects already in the room [43].…”