Context Understanding Technology to improve internet accessibility for users with

描述（由申请人提供）：这个SBIR项目的目的是开发一种新的工具，以提高盲人和视障人士快速到达正确网页的能力，避免最终出现在错误的网页上，并有效地到达每个网页的所需部分。这项工作的动机是，获得一个'大局'的理解， 网页是这群计算机用户面临的最大挑战之一。现有的用于盲人和视力受损的人的工具，例如屏幕阅读器和屏幕放大器，或者通过细节的文本输出，或者通过B提供页面的一小部分的放大视图，以完整的细节连续地呈现整个网页。然而，如果用户还不熟悉网站，那么由此产生的上下文缺乏需要一个费力和耗时的过程来扫描有时数百个细节，然后才能知道相关页面上是否存在任何感兴趣的内容。相比之下，所提出的技术以与有视力的用户在详细阅读之前快速扫描页面类似的方式分析网页，以提供关于页面的上下文和布局的简洁、信息丰富的指导，使得用户快速获得更丰富的“大画面”理解。拟议的第二阶段项目建立在一个成功的第一阶段用户评价的软件的概念证明，其中用户表示强烈的偏好的方法提供的上下文线索。第二阶段包括创建软件工具的全功能原型。在整个技术开发过程中，来自用户和从业者的反馈将指导研发的路径，以实现最大的可用性。在第二阶段结束时，一项最终用户家庭评价研究将验证该工具的有效性，为全面商业化提供起点。

DESCRIPTION (provided by applicant): The purpose of this SBIR project is to develop a new tool to improve the ability of blind and visually impaired people to quickly get to the right web pages, to avoid ending up on the wrong web pages, and to reach the desired part of each web page efficiently. The motivation for this effort is that getting a 'big picture' understanding of a web page is one of the biggest challenges facing this population of computer users. Existing tools for blind and visually impaired people, such as screen readers and screen magnifiers, present the entire web page serially, in full detail, either by textual output of the details, or b providing a magnified view of a small part of the page. However, if the user is not already familiar with the website, the resulting lack of context requires a laborious and time-consuming process to scan through sometimes hundreds of details before knowing whether anything of interest even exists on the page in question. In contrast, the proposed technology analyzes web pages in a similar way that sighted users quickly scan pages before reading in detail, to provide a succinct, informative guidance on the context and layout of the page, so that a user quickly gains a much richer "big-picture" understanding. The proposed Phase II project builds on a successful Phase I user evaluation of a proof- of-concept of the software, in which users expressed a strong preference for the contextual cues provided by the approach. Phase II includes creating a fully-functional prototype of the software tool. Throughout the technology development, feedback from users and practitioners will guide the path of the R&D for maximum usability. At the conclusion of Phase II, an end-user, in-home evaluation study will verify the effectiveness of the tool, providing the starting point for full-scale commercialization.