OCR for handwritten mathematics - MathOverflow most recent 30 from http://mathoverflow.net 2013-05-23T14:57:39Z http://mathoverflow.net/feeds/question/95558 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/95558/ocr-for-handwritten-mathematics OCR for handwritten mathematics Neil Strickland 2012-04-30T07:03:15Z 2012-11-15T17:29:19Z <p>I am in the process of scanning a large collection of handwritten notes. They consist of diagrams and formulae with a relatively small proportion of actual words. Of course it would be hopeless to get an OCR program to digest the diagrams or formulae, but it would be useful if I could get one to find and transcribe enough of the words to build an index. Has anyone tried this kind of thing?</p> http://mathoverflow.net/questions/95558/ocr-for-handwritten-mathematics/95619#95619 Answer by Bob Terrell for OCR for handwritten mathematics Bob Terrell 2012-04-30T21:40:52Z 2012-04-30T21:40:52Z <p>I recommend www.inftyreader.org. They have a trial version, with long enough trial period to do a big project. I've used InftyReader on a flakey old laptop and it did a pretty good job for a math book reissue. It took about half an hour or so to do each 40 page bundle of the disassembled book. It made systematic errors in the tex, many of which I was able to correct with some awk commands, but of course I still had to go through the whole thing tediously. I was not going for perfection, but just for something editable, and I think it came out better than required for this purpose.</p> http://mathoverflow.net/questions/95558/ocr-for-handwritten-mathematics/95625#95625 Answer by Joseph O'Rourke for OCR for handwritten mathematics Joseph O'Rourke 2012-05-01T00:01:11Z 2012-05-01T00:01:11Z <p>To supplement Bob Terrell's post, here is <a href="http://www.inftyreader.org/?p=61" rel="nofollow">an example from InftyReader</a>.</p> <p>Snippet from an input image, scanned at 600dpi: <hr />&nbsp;&nbsp;<img src="http://cs.smith.edu/~orourke/MathOverflow/16_011Input.png" alt="Input"><hr /> Snippet from output of the corresponding LaTeX produced by <a href="http://www.inftyreader.org/" rel="nofollow">InftyReader</a>: <hr />&nbsp;&nbsp;<img src="http://cs.smith.edu/~orourke/MathOverflow/16_011LaTeXOutput.png" alt="LaTeX Output"><hr /> It's not perfect&mdash;$\partial z \partial \bar{z}$ becomes $\partial z k$&mdash;but it's pretty impressive!</p> http://mathoverflow.net/questions/95558/ocr-for-handwritten-mathematics/112503#112503 Answer by Fazal Karim for OCR for handwritten mathematics Fazal Karim 2012-11-15T17:29:19Z 2012-11-15T17:29:19Z <p>I am searching for an OCR too to save my handwritten M.Sc notes. So far I have come to realize that I might have to learn LaTeX or a TeX software to write and compile notes into postscript or pdfs of all my notes. But learning LaTeX is a big challenge. Its like learning a big programming language to master it will take time.</p>