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Licensed Unlicensed Requires Authentication Published by De Gruyter July 14, 2011

PiTaSu: wearable interface for assisting senior citizens with memory problems

  • Goshiro Yamamoto EMAIL logo , Tomohiro Kuroda , Daisuke Yoshitake , Seamus Hickey , Jaakko Hyry , Kunihiro Chihara and Petri Pulli


Little research has been carried out on specialized wearable input interfaced designs to assist memory impaired senior citizens. This paper proposes and implements PiTaSu (Picture based Tapping on wall Surfaces) to realize a direct input interface system to offer visual feedback and tactile feedback. PiTaSu is based on a pictorial based Augmentative and Alternative Communication (AAC) system. PiTaSu consists of a body-worn or shoulder-attached mobile projector, a camera and an accelerometer wrist band. The projector shows information that will help assist the memory impaired senior citizen in their daily task. The camera and the accelerometer detect a tapping position and tapping trigger. Experimental results have demonstrated that a senior citizen can use PiTaSu without learning special skills, and the projection based user interface has potential. Therefore, PiTaSu can assist memory-impaired senior citizens as a daily task reminder.

Corresponding author: Goshiro Yamamoto, Graduate School of Information Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara, JapanPhone/Fax: +81-743-72-5332/5339

Received: 2010-11-1
Accepted: 2011-4-26
Published Online: 2011-07-14
Published in Print: 2011-11-01

©2011 by Walter de Gruyter Berlin Boston

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