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Posture based recognition of the visual focus of attention for adaptive mobile information systems

: Westhoven, M.; Plegge, C.; Henrich, T.; Alexander, T.


Schmorrow, D.:
Foundations of augmented cognition. Neuroergonomics and operational neuroscience. 10th international conference, AC 2016. Proceedings. Pt.1 : Held as part of HCI International 2016, Toronto, ON, Canada, July 17-22, 2016
Cham: Springer International Publishing, 2016 (Lecture Notes in Computer Science 9743)
ISBN: 978-3-319-39954-6 (Print)
ISBN: 978-3-319-39955-3 (Online)
International Conference on Augmented Cognition (AC) <10, 2016, Toronto>
International Conference on Human-Computer Interaction (HCI International) <18, 2016, Toronto>
Conference Paper
Fraunhofer FKIE ()

This paper presents a method to estimate the visual focus of attention from body posture in a system consisting of a head-mounted display and an arm-mounted smartphone. The approach aims at fast and robust detection without using additional hardware, even when walking. Knowledge about the visual focus of attention can be used to adapt user interfaces. E.g. eye-tracking can yield precise measurements for stationary systems. This it is not always possible using mobile devices due to body movement dynamics. A practical solution is achieved through a combination of orientation information and known anatomical limitations. The approach was parameterized and evaluated, reaching mean detection rates of over 97 %. Generalized parameters allow for usage without individual configuration. Used as a screen unlocking mechanism for smartphones, faster access can be realized in comparison to manual unlocking.