Describing and Assessing Image Descriptions for Visually Impaired Web Users with IDAT
Describing and Assessing Image Descriptions for Visually Impaired Web Users with IDAT
复制标题
使用 IDAT 为视障 Web 用户描述和评估图像描述
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
B. Tompsett
中科院分区：
文献类型：
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作者：
J. Nganji;M. Brayshaw;B. Tompsett
当网站不符合可访问性标准并因此无法访问时，有视觉障碍的人，特别是盲人在使用屏幕阅读器等辅助技术浏览网络时面临很多困难。 HTML 是网站设计的基本语言，但其 IMG 元素上的 ALT 属性无法以屏幕阅读器可以准确解释的方式充分捕获全面的图像语义和描述，因此盲人通常无法获得图像的完整描述。然而，大多数问题都是由于网页设计者和开发人员没有包含图像描述或没有向有视觉障碍的人全面描述这些图像而引起的。在本文中，我们建议使用图像描述评估工具 (IDAT)，这是一种基于 Java 的工具，其中包含一些建议的启发式方法，用于评估图像描述与网络上图像的真实内容的匹配程度。该工具还包含一个语音界面，可以使视障人士听到已上传到系统的图像的描述。
People with visual impairments, particularly blind people face alot of difficulties browsing the web with assistive technologies such as screen readers, when websites do not conform to accessibility standards and are thus inaccessible. HTML is the basic language for website design but its ALT attribute on the IMG element does not adequately capture comprehensive image semantics and description in a way that can be accurately interpreted by screen readers, hence blind people do not usually get the complete description of the image. Most of the problems however arise from web designers and developers not including a description of an image or not comprehensively describing these images to people with visual impairments. In this paper, we propose the use of the Image Description Assessment Tool (IDAT), a Java-based tool containing some proposed heuristics for assessing how well an image description matches the real content of the image on the web. The tool also contains a speech interface which can enable a visually impaired individual to listen to the description of an image that has been uploaded unto the system.