Image analysis – Pattern recognition – On-line recognition of handwritten characters
Patent
1993-05-21
1995-07-11
Mancuso, Joseph
Image analysis
Pattern recognition
On-line recognition of handwritten characters
387159, 395 61, G06K 900
Patent
active
054328683
ABSTRACT:
An information medium recognition device for recognizing an information medium such as a handwritten signature inputted by performing an offline input operation. The information medium recognition device is provided with a detection portion for scanning the information medium in different scanning directions and for detecting a stroke density corresponding to each of the scanning directions, an inference portion for converting the stroke density into a compressed fuzzy density by performing a fuzzy inference process on the stroke density corresponding to each scanning direction, which is detected by the detection portion, and a judgement portion for judging from the fuzzy density corresponding to each scanning direction whether or not the information medium is genuine. Thereby, the information medium recognition device has an excellent effect in that the genuineness of the information medium such as a handwritten signature can be accurately recognized and judged on the basis of data obtained as the result of the fuzzy inference processing performed by the inference portion.
REFERENCES:
patent: 4274542 (1988-02-01), Williford
patent: 4398177 (1983-07-01), Bernhardt
patent: 5222155 (1993-06-01), Delanoy et al.
Siy et al., Fuzzy Logic For Handwritten Numeral Character Recognition, IEEE Transactions on Systems, Man and Cybernetics Nov. 1974, pp. 570-575.
"Stroke Density Feature for Handprinted Chinese Characters Recognition" by Seiichiro Naito et al; Journal of Japan Society of Electronic Communication, '81/8, vol. J64-D, No. 8; Aug., 1981; pp. 757-764 (w/partial English translation).
"A Basic Study on Signature Recognition" by Shigeru Watanabe et al; The 8th Fuzzy System Symposium Lecture Theses; May, 1992; pp. 173-176 (w/whole English translation).
Furuhashi Takeshi
Obata Kenzo
Uchikawa Yoshiki
Watanabe Shigeru
Mancuso Joseph
Nippondenso Co. Ltd.
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