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Effect of presenting video as a baseline during an american sign language animation user study

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Effect of presenting video as a baseline during an american sign language animation user study

Content Provider	ACM Digital Library
Author	Kacorri, Hernisa Lu, Pengfei
Abstract	Animations of American Sign Language (ASL) have accessibility benefits for many signers with lower levels of written language literacy. Our lab has conducted several prior studies to evaluate synthesized ASL animations by asking native signers to watch different versions of animations and to answer comprehension and subjective questions about them. As an upper baseline, we used an animation of a virtual human carefully created by a human animator who is a native ASL signer. Considering whether to instead use videos of human signers as an upper baseline, we wanted to quantify how including a video upper baseline would affect how participants evaluate the ASL animations presented in a study. In this paper, we replicate a user study we conducted two years ago, with one difference: replacing our original animation upper baseline with a video of a human signer. We found that adding a human video upper baseline depressed the subjective Likert-scale scores that participants assign to the other stimuli (the synthesized animations) in the study when viewed side-by-side. This paper provides methodological guidance for how to design user studies evaluating sign language animations and facilitates comparison of studies that have used different upper baselines.
Starting Page	183
Ending Page	190
Page Count	8
File Format	PDF
ISBN	9781450313216
DOI	10.1145/2384916.2384949
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2012-10-22
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Accessibility technology for people who are deaf User study Animation Baseline American sign language
Content Type	Text
Resource Type	Article

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