Tuomas Vaittinen

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People have a natural tendency to capture and share their experiences via stories, photos and other mementos. As users are increasingly carrying the enabling devices with them, capturing life events is becoming more spontaneous. The automatic and persistent collecting of information about one's life and behavior is called lifelogging. Lifelogging relieves(More)
The ubiquity of smart-phones makes them the de facto platform for outdoor mixed and augmented reality. While there has been a surge in sensor-based Augmented Reality applications, many unsolved technical challenges must be overcome before an ideal mobile AR client can be built. While solutions are being developed, we have investigated using 3D mirror world(More)
With advanced sensor technologies and tools for content creation, current mobile devices possess features for providing information services based on user's location. There are several services for geographically pinned user-generated content focusing on providing information to users in unfamiliar locations. However, information needs regarding(More)
Although linear textual menus are a widely adopted solution in the mobile phone user interfaces, alternatives that would take smaller amount of screen real estate exist, e.g. toolbars and pie menus. Pie menus also provide access to functions with fewer key presses than traditional Options menu but are best suited for expert users. We compared toolbars and(More)
Mobile navigation services are becoming more than merely digital maps; many of them include imagery from the street level. The user can benefit from enriching the 2D-map-based navigation with panoramic imagery from the citizen's perspective, hence gaining an authentic view of the frequent landmarks that urban environments include. In this paper we describe(More)
This paper presents the design and prototype implementation of a location-based service aimed for hikers. Maps and navigation in urban areas are already well-researched topics but it can be argued that greater demands are placed on location-based services in non-urban areas -- a field which has not been researched in detail yet. Studying these demands more(More)
In this paper we describe our research on unified media experience for the end-users. The research focused on unified mobile media player supporting different media types with one unified UI structure and design for all media types. The created UI structure and design was based on our earlier study of finding an optimal information architecture model for(More)
There is a lack of widely available mobile map applications that effectively support pedestrian tourists who prefer the freedom of exploring their surroundings, and might not have an explicit destination they are trying to reach in mind. Although research systems to support such exploratory navigation have been developed, these are often only studied in(More)
We present results of an investigation into the role of seasonality in mobile cultural heritage applications. 45 participants in 26 groups used one of two applications when visiting the Finnish recreational island of Seurasaari. Each provided summer and winter content, but varied in how this was presented. We uncovered how users consider seasonality in(More)