CrashAlert: enhancing peripheral alertness for eyes-busy mobile interaction while walking

Authors:
Juan David Hincapié-Ramos;Pourang Irani
Affiliations:
University of Manitoba, Winnipeg, Manitoba, Canada;University of Manitoba, Winnipeg, Manitoba, Canada
Venue:
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Year:
2013

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Abstract

Mobile device use while walking, or eyes-busy mobile interaction, is a leading cause of life-threatening pedestrian collisions. We introduce CrashAlert, a system that augments mobile devices with a depth camera, to provide distance and location visual cues of obstacles on the user's path. In a realistic environment outside the lab, CrashAlert users improve their handling of potential collisions, dodging and slowing down for simple ones while lifting their head in more complex situations. Qualitative results outline the value of extending users' peripheral alertness in eyes-busy mobile interaction through non-intrusive depth cues, as used in CrashAlert. We present the design features of our system and lessons learned from our evaluation.