Recognition of Handwritten Numerals Using a Decision Graph

Katsuragi, Sumio; Genchi, Hiroshi; Mori, Ken-ichi; Watanabe, Sadakazu

Recognition of Handwritten Numerals Using a Decision Graph

Sumio Katsuragi, Hiroshi Genchi, Ken-ichi Mori, Sadakazu Watanabe

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Proceedings of the First International Joint Conference on Artificial Intelligence. Pictorial Pattern Recognition. Pages 161-170.

Abstract

An optical character reader capable of reading handwritten numerical characters has been developed and applied to mail automation. The recognition of characters is performed by extracting geometrical features out of horizontally divided zones together with their mutual connective relation . The topological structure of character strokes is analyzed by a sequential machine with an input string of stroke segments combined with information on the connective relation. The extracted features a re sequentially matched with standard references. A new decision method called decision graph matching is fully utilized. The decision graph consists of a set of decision transition diagrams to b e compared with the string of extracted features and a penalty count system to detect the optimum match. High flexibility against unlimited variability of handwritten character shapes is achieved by means of a stored logic system using rewritable magnetic core memory.

Sumio Katsuragi, Hiroshi Genchi, Ken-ichi Mori, and Sadakazu Watanabe. 1969. Recognition of Handwritten Numerals Using a Decision Graph. In Proceedings of the First International Joint Conference on Artificial Intelligence, IJCAI-69. IJCAI, 161–170. https://ijcai.org/proceedings/1969/16

@inproceedings{ijcai1969p16,
  title     = {Recognition of Handwritten Numerals Using a Decision Graph},
  author    = {Katsuragi, Sumio and Genchi, Hiroshi and Mori, Ken-ichi and Watanabe, Sadakazu},
  booktitle = {Proceedings of the First International Joint Conference on
               Artificial Intelligence, {IJCAI-69}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Donald E. Walker and David C. Cooper},
  pages     = {161--170},
  year      = {1969},
  month     = {5},
  note      = {Pictorial Pattern Recognition},
  url       = {https://ijcai.org/proceedings/1969/16},
}

TY  - CPAPER
TI  - Recognition of Handwritten Numerals Using a Decision Graph
AU  - Katsuragi, Sumio
AU  - Genchi, Hiroshi
AU  - Mori, Ken-ichi
AU  - Watanabe, Sadakazu
T2  - Proceedings of the First International Joint Conference on Artificial Intelligence, IJCAI-69
PB  - International Joint Conferences on Artificial Intelligence
PY  - 1969
SP  - 161
EP  - 170
UR  - https://ijcai.org/proceedings/1969/16
ER  -