On Automatic Conversion from E-born PDF into Accessible EPUB3 and Audio-Embedded HTML5

Abstract

As a promising method to make digital STEM books in PDF accessible, a new assistive technology to convert inaccessible PDF into accessible digital books in some different-type formats are shown. E-born PDF is initially converted into text-based EPUB3, and then, it is converted into audio-embedded HTML5 with JavaScript (ChattyBook). In the conversion, various local languages can be chosen for reading out STEM contents.

Towards an Accessible Mathematics Working Environment Based on Isabelle/VSCode

“…Since OCR addresses urgent needs, the respective functionality is concern of ongoing research and deep learning techniques are outperforming the state-of-the-art [3]. • ChattyInfty [38,43] is a comprehensive mathematical editor which represents terms by synthetic speech. The problem is that listening to terms makes them hard to understand and a supplementation of the verbal representation by tactile output -Braille -is missing.…”

Conversion of Multi-lingual STEM Documents in E-Born PDF into Various Accessible E-Formats

“…We have improved InftyReader so that it can treat e-born PDF in any Unicode-based language. Those e-born STEM contents can be converted automatically into various accessible e-formats: L A T E X, human-readable (HR) T E X, Microsoft Word, xHTML with MathML, accessible EPUB3, Multimedia Daisy [5], ChattyBook (audio-embedded HTML5 with JAVA script) [6]. We also develop a scheme to allow end users to customize the software GUI (graphic user interface) so that it is represented in their local language.…”