Jiří Stodola: Data Devisualization #bcs2015
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Transcript of Jiří Stodola: Data Devisualization #bcs2015
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Revisualization and de-visualization of data: transformation of visual data into information for visually impaired users
PhDr. Jiří Stodola, PhD.
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Masaryk university
Support Centre for Students with Special Needs
Division of Informatinon Studies and librarianship
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Introduction 90 % of information through the eyesight data are transformed into structured information
through visualization visually impaired – transformation of visual data
into forms that are accessible for perception through senses other than the eyesight
different types of documents intended for users with visual impairments
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Levels of visual impairment mild to no visual impairment, moderate visual impairment, severe visual impairment, blindness 1 (practical blindness), blindness 2 (legal blindness), blindness 3 (total blindness).
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Visually impaired user user who works with information in a modified
visual form or in a form other than visual works with modified visual information (category 0.-3.
according to WHO), works exclusively with non-visual information
(category 4.-5. according to WHO).
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Transformation of visual data turning visual data into
modified visual information = revisualisation non-visual information = de-visualization
visual data textual image
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Transformation of visual data
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Revisualization of visual textual data and image data enlarged printing camera magnifying glass applications to enlarge the operating system
environment
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Haptization of visual textual and image data Braille (Braille display) tactile graphic
vacuum forming thermal fuser
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Audialization of visual textual data non-musical sound document screenreader and voice syntetizer hybrid book
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Textualization of visual image data
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Documents for visually impaired1. Visual textual (enlarged letters) and image
documents (enlarged graphics, enlarged cartographic documents)
2. Spoken audio documents (audio book) and music documents
3. Tactile textual (Braille publications) and image documents (tactile maps, tyflographics)
4. Combined documents (they allow output for sight, hearing and touch – electronic resources)
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Hybrid book
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According AACR2 Books printed with enlarged letters Tactile books Electronic books Enlarged cartographic documents Tactile cartographic documents Electronic cartographic documents Music documents printed with enlarged letters Tactile music documents Electronic music documents Non-musical audio documents (audio books, audio documents continued) Electronic non-musical audio documents (electronic audio books, electronic audio continued
documents), Enlarged graphic documents Tactile graphic documents Electronic graphic documents Electronic resources Three-dimensional documents (tactile models) Continuing sources printed in enlarged text Tactile continuing resources Electronic continuing resources
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Conclusion the more amount of visual (especially)
information we produce, the greater information deficit of visually impaired people will be.
revisualization and de-visualization is time-consuming and costly
in all cases where there is data visualization, it is really necessary to express them in this way
do we not simplify dangerously intricately structured reality by that that we reduce it to spatial relationships