Structural and Semantic Dialogue Filters

Abstract

The problem of the access of blind people to the graphical information (in a form of picture) is discussed. It is necessary to reduce amount of complex information of the picture to keep understandability of the picture description for blind user. This is solved by special seman- tic and structural dialog filters, which filter required information. The research has been conducted in the framework of several projects. The result of this research is an implementation of tools for creating and bro- wsing the picture description. Because of the similarity between picture description and hypertext document description the filtering methods developed could be also used on any hypertext document, which follows our document structure [3] definition made in XML [6]. The method de- veloped allows the user to transform two-dimensional information into textual one. In such a way complex manipulations can be performed in textual form.