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Evaluating the Effect of Feedback from Different Computer Vision Processing Stages: A Comparative Lab Study

Kittley-Davies, J; Yang, R; Alqaraawi, A; Costanza, E; Stein, S; Rogers, A; (2019) Evaluating the Effect of Feedback from Different Computer Vision Processing Stages: A Comparative Lab Study. In: (Proceedings) CHI 2019: Conference on Human Factors in Computing Systems, 4 - 9 May 2019, Glasgow, UK. ACM: New York, NY, USA. (In press). Green open access

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Abstract

Computer vision and pattern recognition are increasingly being employed by smartphone and tablet applicationstargeted at lay-users. An open design challenge is to make such systems intelligible without requiring users to become technical experts. This paper reports a lab study examining the role of visual feedback. Our fndings indicate that the stage of processing from which feedback is derived plays an important role in users’ ability to develop coherent and correct understandings of a system’s operation. Participants in our study showed a tendency to misunderstand the meaning being conveyed by the feedback, relating it to processing outcomes and higher level concepts, when in reality the feedback represented low level features. Drawing on the experimental results and the qualitative data collected, we discuss the challenges of designing interactions around pattern matching algorithms.

Type: Proceedings paper
Title: Evaluating the Effect of Feedback from Different Computer Vision Processing Stages: A Comparative Lab Study
Event: CHI 2019: Conference on Human Factors in Computing Systems, 4 - 9 May 2019, Glasgow, UK
Location: Glasgow
Dates: 04 May 2019 - 09 May 2019
Open access status: An open access version is available from UCL Discovery
DOI: 10.1145/3290605.3300273
Publisher version: https://chi2019.acm.org/
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: controlled study, stop motion animation, computer vision, keypoints, feedback, processing pipelines
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > UCL Interaction Centre
URI: https://discovery.ucl.ac.uk/id/eprint/10065873
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