Evaluating the accessibility of line graphs through textual summaries for visually impaired users.

ABSTRACTThis paper presents the methodology for generating textual summaries of line graphs in the SIGHT (Summarizing Information GrapHics Textually) system and the evaluation of line graph summaries produced by SIGHT. The system is designed to deliver the high-level knowledge conveyed by informational graphics present in online popular media articles (newspaper and magazines) to individuals who do not have visual access to the image. It works by producing and delivering a concise summary of the graph's content including the most important visual features present in the graphic. The system is briefly described; the evaluation compares the utility of the generated textual summaries to visually viewing the graphic in order to answer important questions about the line graph.