Image analysis – Pattern recognition – On-line recognition of handwritten characters
Patent
1994-12-08
1998-08-18
Johns, Andrew W.
Image analysis
Pattern recognition
On-line recognition of handwritten characters
382309, 382311, G06K 900, G06K 903, G06K 920
Patent
active
057968667
ABSTRACT:
A handwritten stroke data editing system comprising: a group management unit for managing group data and box data for each group, the group data representing strokes within one group, the box data representing a box that is circumscribed to each group, the group including at least one of a character group representing a handwritten character, a word group representing a handwritten word, a line group consisting of a plurality of handwritten characters and/or words, a figure group representing a handwritten figure, a gesture recognition unit for recognizing an editing area based on a gesture inputted by unit of a stylus, the stylus being furnished for the system, the input gesture being represented by the stroke data, the editing area including the stroke data; and a to-be-edited group selection unit for selecting a to-be-edited group by computing an overlapping area of the editing area and each box, the selected to-be-edited group having the overlapping area more than a predetermined ratio to an area of the box. The to-be-edited group selection unit includes: an area computing unit for computing the overlapping area of the editing area and each box; a judgment unit for judging whether the overlapping area computed by the area computing unit exceeds the predetermined ratio; and a selection unit for selecting groups whose box overlaps on the editing area more than the predetermined ratio.
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"Classification of handwritten Stroke Data into Lines ", Journal of Denshi Jyoho Tsushin Gakkai, Jul. 1990, vol. J73-D-II, No. 7 (with partial translation).
Segmentation of handwritten Stroke Data into Characters, Journal of Denshi Jyoho Tsushin Gakkai, Oct. 1991, vol. J73-D-II, No. 10 (with partial translation).
"Stroke Editor, and Direct Ponting and Manipulation", Journal of Jyoho Shori Gakkai, Aug. 1991, vol. 32, No. 8 (with partial translation).
"A Trainable Gesture Recognizer", by James S. Lipscomb, Pattern Recognition Society 1991.
Kamo Osamu
Sakurai Yasuhiro
Davis Monica S.
Johns Andrew W.
Matsushita Electric - Industrial Co., Ltd.
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