WebInSight:: making web images accessible

WebInSight:: making web images accessible
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WebInSight:: 使网络图像易于访问

DOI:
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发表时间:
2006
期刊:
International ACM SIGACCESS Conference on Computers and Accessibility
影响因子:
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通讯作者:
Gordon L. Hempton
Gordon L. Hempton
中科院分区:
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文献类型:
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作者:
Jeffrey P. Bigham;R. S. Kaminsky;R. Ladner;Oscar M. Danielsson;Gordon L. Hempton

文献摘要

被引文献

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没有替代文本的图像是盲人用户平等访问网络的障碍。为了说明这个问题,我们进行了一系列研究,最终表明很大一部分重要图像没有替代文本。为了改善这个问题,我们引入了WebInSight,这是一个自动创建替代文本并将其插入到网页中的系统。制定替代文本的图像,我们提出了三个标签模块的基础上,网络上下文分析,增强的光学字符识别(OCR)和人类标签。该系统将替代文本缓存在本地数据库中,并可以在网页下载后无缝添加新标签,从而将对浏览体验的影响降至最低。
Images without alternative text are a barrier to equal web access for blind users. To illustrate the problem, we conducted a series of studies that conclusively show that a large fraction of significant images have no alternative text. To ameliorate this problem, we introduce WebInSight, a system that automatically creates and inserts alternative text into web pages on-the-fly. To formulate alternative text for images, we present three labeling modules based on web context analysis, enhanced optical character recognition (OCR) and human labeling. The system caches alternative text in a local database and can add new labels seamlessly after a web page is downloaded, resulting in minimal impact to the browsing experience.