Jan Bobeth

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In this paper, we explore alternative TV menu control methods, focusing specifically on older users. We investigated performance and acceptance of freehand gestures by implementing several techniques and conducting a user study with 24 older adults. We expected that older adults would like gesture techniques as they are generally fun to use and easy to(More)
Extensive research in the field of ambient assisted living (AAL) provides profound knowledge about the design of AAL systems. However, more generic design characteristics for user interaction have not been formalized for this domain yet. Thus, we propose to develop a domain specific taxonomy for the design of user interaction in AAL systems. We adopted a(More)
Due to recent development of TVs in the direction of highly interactive multimedia platforms, interactive TV (iTV) applications gain popularity. In terms of control possibilities a variety of input modalities have become available, though effects on performance and user experience of different age groups when controlling different iTV applications remain(More)
Understanding human attention in mobile interaction is a relevant part of human computer interaction, indica-ting focus of task, emotion and communication. Lack of large scale studies enabling statistically significant re-sults is due to high costs of manual penetration in eye tracking analysis. With high quality wearable cameras for eye-tracking and Google(More)
People suffering from Chronic Obstructive Pulmonary Disease (COPD) have to deal with the disease throughout their lifetime and there is no getting around without a successful self-management process. However, a poor adherence to COPD treatment is common in COPD patients and responsible for increased hospitalizations, mortality, reduced quality of life and(More)
Help Radar consists of a ubiquitous assistance service which enables immigrants to connect with volunteers, who in turn provide information on a variety of topics, guidance and practical assistance. The system was developed to foster the early integration of immigrants in the host country. In this paper, we present the methodological approach and results(More)