Abstract. This paper describes shortly a practical integrated system for scientific documents including mathematical formulae, named 'Infty'. The system consists of three components of applications: an OCR system named 'InftyReader', an editor named 'InftyEditor' and converting tools into various formats. Those applications are linked each other via XML files. InftyReader recognizes scanned images of clearly printed mathematical documents and outputs the recognition results in a XML format.It recognizes complex mathematical formulae used in various research papers of mathematics including matrices. InftyEditor provides a very efficient interface to correct the recognition results using keyboard. Another feature of InftyEditor is its handwriting interface to input mathematical formulae for users with vision and speech interface for visually impaired uses.
are examples of an integral, a summation, and a limit, written in a comprehensible fashion.The integral from 0 to 1 of v of x with respect to x equals f of 1 minus f of 0 is written as the following using a Braille Lite: Int[O,I]v(x) dx = f(I)-f(O). The left bracket is produced using the u-chord followed by dots 2-4-6; the right bracket is produced by brailling u-chord followed by dots 1-2-4-5-6. An expression indicating summation, the sum from 0 to 6 of 3 to the power i is written as follows using the Braille Lite: Sum[i= 0, 6]3 A i. The example of a limit, written in words, is as follows: the derivative off of x equals the limit as h goes to 0 offof x plus h minusfof x all over h. Using the Braille Lite, this expression is written in the following manner: rex) = lim[h->O] (f(x +h)-f(x))/h. The arrow is produced by brailling two sets of dots 3-6, followed by the greater than sign, dots 3-4-5.The authors believe that this strategy enables students who are blind to achieve higher levels of independence. Students do not have to depend on sighted individuals to produce print mathematics. In addition, they can review their work tactilely on the braille display and easily make changes in their work by using regular Braille Lite editing commands. Finally, they can send the same file to a braille embosser to produce a paper braille copy of their work. REFERENCESBraille Authority of North America (2000).
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