ORCID Profile
0000-0003-3890-1990
Current Organisations
Ludwig-Maximilians-Universität München
,
LMU Munich
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Publisher: ACM
Date: 08-10-2023
Publisher: ACM
Date: 04-09-2017
Publisher: Springer International Publishing
Date: 2015
Publisher: Association for Computing Machinery (ACM)
Date: 11-09-2017
DOI: 10.1145/3130898
Abstract: Current digital systems are largely blind to users’ cognitive states. Systems that adapt to users’ states show great potential for augmenting cognition and for creating novel user experiences. However, most approaches for sensing cognitive states, and cognitive load specifically, involve obtrusive technologies, such as physiological sensors attached to users’ bodies. This paper present an unobtrusive indicator of the users’ cognitive load based on thermal imaging that is applicable in real-world. We use a commercial thermal camera to monitor a person’s forehead and nose temperature changes to estimate their cognitive load. To assess the effect of different levels of cognitive load on facial temperature we conducted a user study with 12 participants. The study showed that different levels of the Stroop test and the complexity of reading texts affect facial temperature patterns, thereby giving a measure of cognitive load. To validate the feasibility for real-time assessments of cognitive load, we conducted a second study with 24 participants, we analyzed the temporal latency of temperature changes. Our system detected temperature changes with an average latency of 0.7 seconds after users were exposed to a stimulus, outperforming latency in related work that used other thermal imaging techniques. We provide empirical evidence showing how to unobtrusively detect changes in cognitive load in real-time. Our exploration of exposing users to different content types gives rise to thermal-based activity tracking, which facilitates new applications in the field of cognition-aware computing.
Publisher: ACM
Date: 10-06-2015
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 07-2013
DOI: 10.1109/MPRV.2013.51
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 11-2016
Publisher: Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik GmbH, Wadern/Saarbruecken, Germany
Date: 2017
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 04-2008
DOI: 10.1109/MPRV.2008.27
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 04-2016
DOI: 10.1109/MMUL.2016.31
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2017
DOI: 10.1109/MPRV.2017.6
Publisher: Springer Science and Business Media LLC
Date: 11-2012
Publisher: ACM
Date: 25-02-2016
Publisher: ACM
Date: 09-03-2015
Publisher: ACM
Date: 18-04-2015
Publisher: Springer International Publishing
Date: 2017
Publisher: ACM
Date: 30-11-2015
Publisher: ACM
Date: 16-02-2014
Publisher: ACM Press
Date: 2015
Publisher: ACM
Date: 12-09-0001
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Albrecht Schmidt.