CoSight: Exploring Viewer Contributions to Online Video Accessibility Through Descriptive Commenting
summary
CoSight is a Chrome extension that adds visual indicators of accessibility gaps, pop-up hints for what to describe, real-time reminders to replace vague pronouns, and related captions/comments as references. The system supports two actions, clarify and describe, and in an exploratory study 48 sighted viewers wrote 257 comments, with 89% including grounded visual descriptions. Follow-up interviews with four BLV viewers and four professional AD writers find these comments complementary to professional audio description but not a substitute.
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chapters (10)
- 0:00Introduction and setup
- 1:48What is CoSight
- 3:33Levels of participation
- 4:56Professional vs community solutions
- 6:22Research questions
- 7:26Factors shaping contributions
- 8:30CoSight features and design
- 9:55Study and findings
- 11:19Community moderation challenges
- 11:39Conclusion and future work
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