Image analysis – Pattern recognition – Unconstrained handwriting
Patent
1997-02-14
1998-09-22
Mancuso, Joseph
Image analysis
Pattern recognition
Unconstrained handwriting
G06K 918
Patent
active
058126970
ABSTRACT:
A method of recognizing handwritten characters. A recognition dictionary is prepared including a plurality of characters and corresponding character clusters. A weighting dictionary is prepared including weighting clusters and corresponding object characters. All segmentation position candidates are selected by segmenting handwritten character ink data. Each of the position candidates is separated in a direction corresponding to a direction in which the handwritten character ink data is inputted from a leading position of the ink data and satisfying a predetermined condition. A character candidate is selected corresponding to each segment of the ink data segmented at the segmentation position candidates by referring to the recognition dictionary and calculating a distance value between each of the segments of the ink data and a selected one of the character clusters. The weighting dictionary is referred to and the distance value calculated for one of the character candidates is weighted if one of the weighting clusters included in the weighting dictionary is similar to any one of the segments of the ink data segmented at the segmentation position candidates and if the object character of the one weighting cluster coincides with the one of the character candidates. A rank of the character candidates is determined in accordance with the weighted distance values thereof.
REFERENCES:
patent: 4731857 (1988-03-01), Tappert
patent: 5077807 (1991-12-01), Bokser
patent: 5113452 (1992-05-01), Chatani et al.
patent: 5150424 (1992-09-01), Aguro et al.
patent: 5187551 (1993-02-01), Tanaka
patent: 5214717 (1993-05-01), Kimura et al.
patent: 5265174 (1993-11-01), Nakatsuka
patent: 5272470 (1993-12-01), Zetts
patent: 5341438 (1994-08-01), Clifford
patent: 5392363 (1995-02-01), Fujisaki et al.
patent: 5481625 (1996-01-01), Suzuki
K. Odaka et al., Stroke Order Free On-line Handwritten Character Recognition Algorithm, Institute of Electronics, Information and Communications Engineers of Japan Papers, Jun. 1982, vol. J 65-D, No. 6, pp. 679-686.
S. Miyahara et al., Character Segmentation for Documents Including Various Sized Characters and Spacing Based on Partial Pattern Recognition, Institute of electronics, Information and Communication Engineers of Japan Papers Jun. 1989, vol. J 72 D-11, pp. 846-854.
R. Powalka et al., The Use of Word Shape Information for Cursive Script Recognition, IWFHR-IV, The Forth International Workshop on Frontiers in Handwriting Recognition, Dec. 7-9, 1994, pp. 67-76.
V. Pflug, Using Radial Basis Function Networks for the Extraction of Geometrical Features from On-line Cursive Script, IWFHR-IV, The Forth International Workshop on Frontiers in Handwriting Recognition, Dec. 7-9, 1994, pp. 77-86.
Ikeda Yoshitaka
Sakai Yoshifumi
Mancuso Joseph
Nippon Steel Corporation
Patel Jayanti K.
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