introduction state of the art & related work odt2braille approach odt2braille architecture
DESCRIPTION
odt2braille brings Braille to your Office. OVERVIEW. Introduction State of the art & related work odt2braille approach odt2braille architecture Accessibility checker Future work. Jan Engelen. odt2braille brings Braille to your Office. INTRODUCTION. - PowerPoint PPT PresentationTRANSCRIPT
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• Introduction• State of the art & related work• odt2braille approach• odt2braille architecture• Accessibility checker• Future work
OVERVIEW
Jan Engelen
odt2braille brings Braille to your Office
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• Braille production = expensive, time-consuming• Typical workflow = multi-stage process
– scanning, OCR– verify, edit– add markup– Braille formatting & translation
• Separate tools for each task, duplication of documents, synchronization issues, ...
INTRODUCTION
Jan Engelen
odt2braille brings Braille to your Office
![Page 3: Introduction State of the art & related work odt2braille approach odt2braille architecture](https://reader035.vdocuments.us/reader035/viewer/2022070404/56813adf550346895da32c30/html5/thumbnails/3.jpg)
INTRODUCTION
Jan Engelen
odt2braille brings Braille to your Office
![Page 4: Introduction State of the art & related work odt2braille approach odt2braille architecture](https://reader035.vdocuments.us/reader035/viewer/2022070404/56813adf550346895da32c30/html5/thumbnails/4.jpg)
• Need to:– reduce cost of Braille production– provide open translation systems– make Braille production more open, available and
straightforward for individuals
INTRODUCTION
Jan Engelen
odt2braille brings Braille to your Office
![Page 5: Introduction State of the art & related work odt2braille approach odt2braille architecture](https://reader035.vdocuments.us/reader035/viewer/2022070404/56813adf550346895da32c30/html5/thumbnails/5.jpg)
RELATED WORK
Jan Engelen
• AutoBraille/NorBraille• DAISY XML Braille• Norway, Denmark, Iceland
• BrailleBlaster• DAISY XML / HTML / DOC / PDF Braille• open-source, multi-platform, fully accessible application
• Dotify• open-source translation system for Java• define components for sharing between implementations• establish more modular approach to Braille translation• (17h00 @ room HS 8)
odt2braille brings Braille to your Office
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APPROACH
Jan Engelen
odt2braille brings Braille to your Office
![Page 7: Introduction State of the art & related work odt2braille approach odt2braille architecture](https://reader035.vdocuments.us/reader035/viewer/2022070404/56813adf550346895da32c30/html5/thumbnails/7.jpg)
• Open Document Format (ODF) as master format– more common and more general-purpose than DAISY– widespread, well-established– many authoring applications– truly accessible (cfr. accessibility tools)– automatic conversion to Braille, DAISY (odt2daisy), Bliss
(Concept Coded Framework), large print, etc.
APPROACH
Jan Engelen
odt2braille brings Braille to your Office
![Page 8: Introduction State of the art & related work odt2braille approach odt2braille architecture](https://reader035.vdocuments.us/reader035/viewer/2022070404/56813adf550346895da32c30/html5/thumbnails/8.jpg)
• Free and open-source– http://odt2braille.sourceforge.net– OpenOffice.org / LibreOffice extension
APPROACH
Jan Engelen
odt2braille brings Braille to your Office
![Page 9: Introduction State of the art & related work odt2braille approach odt2braille architecture](https://reader035.vdocuments.us/reader035/viewer/2022070404/56813adf550346895da32c30/html5/thumbnails/9.jpg)
• Smooth integration in a major office suite– not mimicking word-processing features– integrated in existing mainstream word-processor– flat learning curve (experienced in Braille or not)– all functionality embedded in authoring environment– greatly simplifies Braille production workflow
APPROACH
Jan Engelen
odt2braille brings Braille to your Office
![Page 10: Introduction State of the art & related work odt2braille approach odt2braille architecture](https://reader035.vdocuments.us/reader035/viewer/2022070404/56813adf550346895da32c30/html5/thumbnails/10.jpg)
• Separation of content and style– 1 content, multiple forms– provide different presentations on an on-demand basis
using stylesheets• Ink-printing: rich layout (for sighted users)• Braille: basic Braille layout• DAISY• ...
– Braille stylesheet is stored with content and other stylesheets in the ODT file
APPROACH
Jan Engelen
odt2braille brings Braille to your Office
![Page 11: Introduction State of the art & related work odt2braille approach odt2braille architecture](https://reader035.vdocuments.us/reader035/viewer/2022070404/56813adf550346895da32c30/html5/thumbnails/11.jpg)
• Large scope and flexibility– ambitious: targets all of Europe (& whole world)– broad range of Braille alphabets, rules & conventions– flexible
• impressive number of languages• high degree of layout customisation• suitable for professionals
– understandable & user-friendly• transcribe according to existing Braille formatting guidelines,
requiring minimum of user interaction
APPROACH
Jan Engelen
odt2braille brings Braille to your Office
![Page 12: Introduction State of the art & related work odt2braille approach odt2braille architecture](https://reader035.vdocuments.us/reader035/viewer/2022070404/56813adf550346895da32c30/html5/thumbnails/12.jpg)
ARCHITECTURE
Jan Engelen
odt2braille brings Braille to your Office
![Page 13: Introduction State of the art & related work odt2braille approach odt2braille architecture](https://reader035.vdocuments.us/reader035/viewer/2022070404/56813adf550346895da32c30/html5/thumbnails/13.jpg)
• Preproccesor– transform original content/stylesheets to alternative
representation that is suitable as input for Braille formatter• Formatter
– produce Braille file in PEF-format– Liblouisxml/Liblouis
• PEF processor– convert PEF to other file formats– print on a Braille embosser– Braille Utils
ARCHITECTURE
Jan Engelen
odt2braille brings Braille to your Office
![Page 14: Introduction State of the art & related work odt2braille approach odt2braille architecture](https://reader035.vdocuments.us/reader035/viewer/2022070404/56813adf550346895da32c30/html5/thumbnails/14.jpg)
• Liblouisxml– open-source library for Braille transcription of XML– on top of Liblouis: open-source Braille translation and
hyphenation engine
ARCHITECTURE
Jan Engelen
odt2braille brings Braille to your Office
![Page 15: Introduction State of the art & related work odt2braille approach odt2braille architecture](https://reader035.vdocuments.us/reader035/viewer/2022070404/56813adf550346895da32c30/html5/thumbnails/15.jpg)
• Braille Utils– cross-platform API for embossing and converting Braille– Portable Embosser Format (PEF)
• accurate & unambiguous• structure: markup (XML) ↔ control characters• content: locale-independent Unicode Braille ↔ ASCII• PDF of Braille
– embossers: Index Braille, Braillo, Interpoint, ViewPlus, CIDAT, Enabling Technologies, Mountbatten
ARCHITECTURE
Jan Engelen
odt2braille brings Braille to your Office
![Page 16: Introduction State of the art & related work odt2braille approach odt2braille architecture](https://reader035.vdocuments.us/reader035/viewer/2022070404/56813adf550346895da32c30/html5/thumbnails/16.jpg)
• Valid & usable Braille < accessible source document• OpenOffice.org / LibreOffice extension• Make checking accessibility as straightforward as
checking spelling– errors & warnings– repair suggestions– (semi-)automatic repair functions
ACCESSIBILITY CHECKER
Jan Engelen
odt2braille brings Braille to your Office
![Page 17: Introduction State of the art & related work odt2braille approach odt2braille architecture](https://reader035.vdocuments.us/reader035/viewer/2022070404/56813adf550346895da32c30/html5/thumbnails/17.jpg)
odt2braille brings Braille to your Office
• More extensive embosser support• More accurate Braille translations• Availability on more platforms (i.e. Mac OS)
FUTURE WORK
Jan Engelen