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Flexible Hardware Configurations for Studying Mobile Usability

Antti Oulasvirta and Tuomo Nyyssönen

Journal of Usability Studies, Volume 4, Issue 2, February 2009, pp. 93-105

Article Contents


System Description

ARMIv2 is based on experiences and technology from ARMIv1 (Oulasvirta et al. 2005). It highlights the following features:

Figure 2. From left to right: All non-camera equipment attaches to a black leather belt worn by the user. In this setup the front camera is in a small black box (a necklace). (b) A lightweight pole attachable to almost any mobile device can host two minicameras; one camera capturing the face of the user, the other camera capturing the events on the display and keyboard. (c) Environmental cameras allow for higher quality third-person views. The receiver switches to the nearest camera automatically based on signal strength.

Figure 2. From left to right: All non-camera equipment attaches to a black leather belt worn by the user. In this setup the front camera is in a small black box (a necklace). (b) A lightweight pole attachable to almost any mobile device can host two minicameras; one camera capturing the face of the user, the other camera capturing the events on the display and keyboard. (c) Environmental cameras allow for higher quality third-person views. The receiver switches to the nearest camera automatically based on signal strength.

To our knowledge, these three are novel features in comparison to previous systems. The following are several other improvements that have been made in comparison to ARMIv1:

Figure 3 conveys the system architecture. The stabile part is marked with dark grey coloring; all receivers for A/V data can be either wireless or wired.

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