Geography Reference
In-Depth Information
A Virtual Spatiotemporal Annotation
System: The Virtual Stickies Mobile
Augmented Reality Study
Mariusz Nowostawski and Julian Münster
Abstract Smart-phones and other mobile devices are becoming increasingly
ubiquitous. Complex sensory and computing features of these devices provide
excellent opportunities for advanced, context- and location-aware applications.
In this chapter, we discuss the concept of spatiotemporal annotations of real
objects in the urban environment. We stress technological challenges, usability,
and novelty of spatiotemporal contexts that can be generated and consumed by
users of ubiquitous and mobile computing devices. As an example, we present our
implementation of the annotation system called Virtual Stickies. The system
allows capturing, storing and presenting time-, context- and location-specific
annotations to the user of a smartphone. We describe the system architecture and
usability challenges of the system. In our conceptual and experimental deploy-
ments we have tried two different user interface-based solutions: the augmented
camera view and the augmented map view. We provide a short introduction to
mobile augmented reality technologies, present existing work in this area and
provide technical insights into the solutions that we have investigated. The study
has been conducted on the modern mobile platform Android, and utilises some
Google-supported technologies. We briefly conclude with the results of case
studies conducted with the system.
Keywords Mobile augmented reality
Location based augmented reality
Spatiotemporal annotations
Real landmark annotations
User-generated content
