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Proceedings Paper

Parameter calibration for synthesizing realistic-looking variability in offline handwriting
Author(s): Wen Cheng; Dan Lopresti
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Paper Abstract

Motivated by the widely accepted principle that the more training data, the better a recognition system performs, we conducted experiments asking human subjects to do evaluate a mixture of real English handwritten text lines and text lines altered from existing handwriting with various distortion degrees. The idea of generating synthetic handwriting is based on a perturbation method by T. Varga and H. Bunke that distorts an entire text line. There are two purposes of our experiments. First, we want to calibrate distortion parameter settings for Varga and Bunke's perturbation model. Second, we intend to compare the effects of parameter settings on different writing styles: block, cursive and mixed. From the preliminary experimental results, we determined appropriate ranges for parameter amplitude, and found that parameter settings should be altered for different handwriting styles. With the proper parameter settings, it should be possible to generate large amount of training and testing data for building better off-line handwriting recognition systems.

Paper Details

Date Published: 24 January 2011
PDF: 10 pages
Proc. SPIE 7874, Document Recognition and Retrieval XVIII, 78740Y (24 January 2011); doi: 10.1117/12.873431
Show Author Affiliations
Wen Cheng, Lehigh Univ. (United States)
Dan Lopresti, Lehigh Univ. (United States)

Published in SPIE Proceedings Vol. 7874:
Document Recognition and Retrieval XVIII
Gady Agam; Christian Viard-Gaudin, Editor(s)

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