Converting Optically Scanned Regular or Irregular Tables to a Standardised Markup Format to be Accessible to Vision-Impaired

Azadeh Nazemi, Iain Murray, Chandrika Fernaando, David A. McMeekin


Documents use tables to communicate multidimensional information clearly, summarise and present data in aneasy-to-interpret way. Tabular information in scanned PDF due to its nature without further processing is notaccessible for vision-impaired people who use assistive technology such as screen readers. The lack of access to tablecontents limits educational and workplace opportunities for people with vision impairment. They require a completeequivalent to access table. This paper describes techniques which apply to scanned PDF document for table detection,extraction and cell segmentation to retrieve cell contents and represent them in a navigable manner tovision-impaired.The output is in mark-up format and provides navigation ability to access content of a table.

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World Journal of Education
ISSN 1925-0746(Print)  ISSN 1925-0754(Online)

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