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Issue No.11 - November (2000 vol.22)
pp: 1304-1317
ABSTRACT
<p><b>Abstract</b>—A new approach of segmenting single- or multiple-touching handwritten numeral string (two-digits) is proposed. Most algorithms for segmenting connected digits mainly focus on the analysis of foreground pixels. Some concentrated on the analysis of background pixels only and others are based on a recognizer. In this paper, we combine background and foreground analysis to segment single- or multiple-touching handwritten numeral strings. Thinning of both foreground and background regions are first processed on the image of connected numeral strings and the feature points on foreground and background skeletons are extracted. Several possible segmentation paths are then constructed and useless strokes are removed. Finally, the parameters of geometric properties of each possible segmentation paths are determined and these parameters are analyzed by the mixture Gaussian probability function to decide the best segmentation path or reject it. Experimental results on NIST special database 19 (an update of NIST special database 3) and some other images collected by ourselves show that our algorithm can get a correct rate of 96 percent with rejection rate of 7.8 percent, which compares favorably with those reported in the literature.</p>
INDEX TERMS
Thinning, multiple-touching, segmentation, mixture Gaussian probability.
CITATION
Yi-Kai Chen, Jhing-Fa Wang, "Segmentation of Single- or Multiple-Touching Handwritten Numeral String Using Background and Foreground Analysis", IEEE Transactions on Pattern Analysis & Machine Intelligence, vol.22, no. 11, pp. 1304-1317, November 2000, doi:10.1109/34.888715
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