Polyfilling Accessible Chemistry Diagrams

Research output: Chapter in Book/Report/Conference proceedingOther chapter contribution


Colleges, School and Institutes


We present a polyfill solution for replacing inaccessible images of molecules with fully web-accessible chemistry diagrams. Thereby marked up bitmap images on a client web site are extracted, server side recognised and semantically enriched to generate scalable vector graphics (SVG) with embedded chemical information. These graphics are then re-inserted into the original web page providing readers with accessibility features such as speech output and interactive exploration together with synchronised highlighting and magnification. Our solution works for most combinations of browsers and screen reading software on all major desktop platforms, and while it is currently only implemented for chemical diagrams, it is extensible to other STEM subject areas.


Original languageEnglish
Title of host publicationComputers Helping People with Special Needs
Subtitle of host publication15th International Conference, ICCHP 2016, Linz, Austria, July 13-15, 2016, Proceedings, Part I
EditorsKlaus Miesenberger, Christian Bühler, Petra Penaz
Publication statusPublished - 6 Jul 2016
Event15th International Conference on Computers Helping People with Special Needs (ICCHP 2016) - Linz, Austria
Duration: 13 Jul 201615 Jul 2016

Publication series

NameLecture Notes in Computer Science
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Conference15th International Conference on Computers Helping People with Special Needs (ICCHP 2016)


  • Chemistry diagrams, Web accessibility, STEM accessibility