Quantitative Evaluation of Improved Global Interpolation in the Segmentation of Handwritten Numbers Overlapping a Border
Summary :
The global interpolation method we proposed can extract a handwritten alpha-numeric character pattern even if it overlaps a border. Our method interpolates blank segments in a character after borders are removed by evaluating segment pattern continuity and connectedness globally to produce characters with smooth edges. The main feature of this method is to evaluate global component label connectivity as pattern connectedness. However, it is impossible for the method to interpolate missing superpositioning loop segments, because they lack segment pattern continuity and they have already had global component label connectivity. To solve this problem, we improved the method by adding loop interpolation as a global evaluation. The evaluation of character segment continuity is also improved to achieve higher quality character patterns. There is no database of overlapping characters, so we also propose an evaluation method which generates various kinds of overlapping numerals from an ETL database. Experimental results using these generated patterns showed that the improved global interpolation method is very effective for numbers that overlap a border.
- Publication
- IEICE TRANSACTIONS on Information Vol.E79-D No.5 pp.456-463
- Publication Date
- 1996/05/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- Special Section PAPER (Special Issue on Character Recognition and Document Understanding)
- Category
- Segmentation
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Keyword
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Satoshi NAOI, Misako SUWA, Maki YABUKI, "Quantitative Evaluation of Improved Global Interpolation in the Segmentation of Handwritten Numbers Overlapping a Border" in IEICE TRANSACTIONS on Information,
vol. E79-D, no. 5, pp. 456-463, May 1996, doi: .
Abstract: The global interpolation method we proposed can extract a handwritten alpha-numeric character pattern even if it overlaps a border. Our method interpolates blank segments in a character after borders are removed by evaluating segment pattern continuity and connectedness globally to produce characters with smooth edges. The main feature of this method is to evaluate global component label connectivity as pattern connectedness. However, it is impossible for the method to interpolate missing superpositioning loop segments, because they lack segment pattern continuity and they have already had global component label connectivity. To solve this problem, we improved the method by adding loop interpolation as a global evaluation. The evaluation of character segment continuity is also improved to achieve higher quality character patterns. There is no database of overlapping characters, so we also propose an evaluation method which generates various kinds of overlapping numerals from an ETL database. Experimental results using these generated patterns showed that the improved global interpolation method is very effective for numbers that overlap a border.
URL: https://global.ieice.org/en_transactions/information/10.1587/e79-d_5_456/_p
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@ARTICLE{e79-d_5_456,
author={Satoshi NAOI, Misako SUWA, Maki YABUKI, },
journal={IEICE TRANSACTIONS on Information},
title={Quantitative Evaluation of Improved Global Interpolation in the Segmentation of Handwritten Numbers Overlapping a Border},
year={1996},
volume={E79-D},
number={5},
pages={456-463},
abstract={The global interpolation method we proposed can extract a handwritten alpha-numeric character pattern even if it overlaps a border. Our method interpolates blank segments in a character after borders are removed by evaluating segment pattern continuity and connectedness globally to produce characters with smooth edges. The main feature of this method is to evaluate global component label connectivity as pattern connectedness. However, it is impossible for the method to interpolate missing superpositioning loop segments, because they lack segment pattern continuity and they have already had global component label connectivity. To solve this problem, we improved the method by adding loop interpolation as a global evaluation. The evaluation of character segment continuity is also improved to achieve higher quality character patterns. There is no database of overlapping characters, so we also propose an evaluation method which generates various kinds of overlapping numerals from an ETL database. Experimental results using these generated patterns showed that the improved global interpolation method is very effective for numbers that overlap a border.},
keywords={},
doi={},
ISSN={},
month={May},}
Copy
TY - JOUR
TI - Quantitative Evaluation of Improved Global Interpolation in the Segmentation of Handwritten Numbers Overlapping a Border
T2 - IEICE TRANSACTIONS on Information
SP - 456
EP - 463
AU - Satoshi NAOI
AU - Misako SUWA
AU - Maki YABUKI
PY - 1996
DO -
JO - IEICE TRANSACTIONS on Information
SN -
VL - E79-D
IS - 5
JA - IEICE TRANSACTIONS on Information
Y1 - May 1996
AB - The global interpolation method we proposed can extract a handwritten alpha-numeric character pattern even if it overlaps a border. Our method interpolates blank segments in a character after borders are removed by evaluating segment pattern continuity and connectedness globally to produce characters with smooth edges. The main feature of this method is to evaluate global component label connectivity as pattern connectedness. However, it is impossible for the method to interpolate missing superpositioning loop segments, because they lack segment pattern continuity and they have already had global component label connectivity. To solve this problem, we improved the method by adding loop interpolation as a global evaluation. The evaluation of character segment continuity is also improved to achieve higher quality character patterns. There is no database of overlapping characters, so we also propose an evaluation method which generates various kinds of overlapping numerals from an ETL database. Experimental results using these generated patterns showed that the improved global interpolation method is very effective for numbers that overlap a border.
ER -
English
