In this paper, we focus on the annotation-based transcoding. The most important objective is to transcode existing Web pages which are presented as two dimensional information to make the pages accessible as one dimensional information. After introducing the system architecture, we will describe our proposed annotations which can be provided both by sighted and blind annotators. We will then show examples of transcoded pages with the annotations and discuss conclusions and plans. The proxy server is the main component that transcodes a target HTML document.
Users access our system simply by setting a proxy server for their browser.
It consists of three main components, a transcoding module, an annotation manager and an annotation database. When the transcoding module receives a target HTML document, the annotation manager also searches the annotation database with the same URL, and WTP transcodes the target HTML document using the annotation file returned from the annotation database. However, one page is sometimes similar to others, and in such cases, the annotation files can be shared among those pages. This is possible because our system evaluates the similarity of HTML documents. These have two components, one for structural annotations and one for commentary annotations.