Scanning and reading devices
What are they?
Scanning and reading devices and the associated software can be of assistance to students who are blind, have visual impairments or specific learning difficulties including dyslexia.
The stand-alone scanner reader takes text and converts it to speech output. Optical character recognition (OCR) software can read pages containing tables or columns and work its way fairly successfully through material at different orientations. OCR may also be used on a computer with a separate scanner.
Some specialist computer programs offer text highlighting, book marking and note-taking features as well as various colours and contrast modes for viewing.
There are also pen scanners - small amounts of text, such as quotes, can be taken from books or journals and downloaded to a computer.
How are they used?
These scanners are often essential in a library or research situation where text books or journals are not available in Braille or audio format.
Scanners can be used alongside computers, so that text that has been optically recognised can be read, edited and returned with comments.
In-house learning resource centres with trained specialists may offer scanning services to convert large amounts of text to Braille or audio format. Alternatively the required texts may be ordered from outside agencies such as the RNIB.
Any issues to be aware of?
Not all text can be recognised sufficiently well for speech output or Braille transcription. Text in complex formats, formulas, science symbols, diagrams, and other graphics can all cause problems.
Accuracy rates vary with some types of paper and scripts. Very old print is not a good candidate for scanning technologies.
Scanning takes time whether carried out by a professional or a student, so allowances must be made. Reading lists should be discussed in advance and essential texts identified if possible.
Copyright issues may affect the amount of text that can be scanned for some students, especially as the law stands at present for those with specific learning difficulties including dyslexia.