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Evaluating the effect of feedback from different computer vision processing stages: a comparative lab study

Evaluating the effect of feedback from different computer vision processing stages: a comparative lab study
Evaluating the effect of feedback from different computer vision processing stages: a comparative lab study
Computer vision and pattern recognition are increasingly being employed by smartphone and tablet applications targeted 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 findings 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.
controlled study, stop motion animation, processing pipelines, feedback, keypoints, computer vision
Kittley-Davies, Jacob
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Alqaraawi, Ahmed
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Yang, Rayoung
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Costanza, Enrico
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Rogers, Alex
e60d4ae1-78da-4b4c-9dd7-dac5c46a9405
Stein, Sebastian
cb2325e7-5e63-475e-8a69-9db2dfbdb00b
Kittley-Davies, Jacob
d7c1ee50-7e76-4e77-9fa3-109bf9458070
Alqaraawi, Ahmed
0fafa520-b29e-4f94-83c6-9d1c6366bd28
Yang, Rayoung
864ab61b-1eba-4047-aef5-df47f9cf3dc1
Costanza, Enrico
0868f119-c42e-4b5f-905f-fe98c1beeded
Rogers, Alex
e60d4ae1-78da-4b4c-9dd7-dac5c46a9405
Stein, Sebastian
cb2325e7-5e63-475e-8a69-9db2dfbdb00b

Kittley-Davies, Jacob, Alqaraawi, Ahmed, Yang, Rayoung, Costanza, Enrico, Rogers, Alex and Stein, Sebastian (2018) Evaluating the effect of feedback from different computer vision processing stages: a comparative lab study. 12 pp . (In Press) (doi:10.1145/3290605.3300273).

Record type: Conference or Workshop Item (Paper)

Abstract

Computer vision and pattern recognition are increasingly being employed by smartphone and tablet applications targeted 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 findings 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.

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Accepted/In Press date: 14 December 2018
Keywords: controlled study, stop motion animation, processing pipelines, feedback, keypoints, computer vision

Identifiers

Local EPrints ID: 427535
URI: http://eprints.soton.ac.uk/id/eprint/427535
PURE UUID: de0c61f2-c052-4a39-b855-e5e6725db965

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Date deposited: 22 Jan 2019 17:30
Last modified: 29 Jan 2020 17:44

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