全部说出来：改善非视觉演示可访问性的反馈
Say It All: Feedback for Improving Non-Visual Presentation Accessibility
摘要：
演讲者通常使用幻灯片作为信息性演讲的视觉辅助。当演示者无法口头描述幻灯片上的内容时，盲人和视力受损的观众无法访问必要的内容，使演示难以进行。我们对90个演示视频的分析显示，610个视觉元素中有72%（例如，图像、文本）没有得到充分描述。为了帮助演示者创建无障碍演示，我们引入了Presentation A11y，这是一个提供实时和演示后无障碍反馈的系统。我们的系统分析幻灯片上的视觉元素和口头演示的文字记录，以提供元素级的反馈，说明哪些视觉内容需要进一步描述，甚至删除。使用我们系统的演示者在他们自己的幻灯片演示中描述了更多的幻灯片内容，并在演讲后发现了比使用传统幻灯片演示界面时多3.26倍的可访问性问题。将可访问性反馈纳入内容创建工具将改善所有人对信息内容的可访问性。
英文摘要：
Presenters commonly use slides as visual aids for informative talks. When presenters fail to verbally describe the content on their slides, blind and visually impaired audience members lose access to necessary content, making the presentation difficult to follow. Our analysis of 90 presentation videos revealed that 72% of 610 visual elements (e.g., images, text) were insufficiently described. To help presenters create accessible presentations, we introduce Presentation A11y, a system that provides real-time and post-presentation accessibility feedback. Our system analyzes visual elements on the slide and the transcript of the verbal presentation to provide element-level feedback on what visual content needs to be further described or even removed. Presenters using our system with their own slide-based presentations described more of the content on their slides, and identified 3.26 times more accessibility problems to fix after the talk than when using a traditional slide-based presentation interface. Integrating accessibility feedback into content creation tools will improve the accessibility of informational content for all.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
