Methods and apparatus for handwriting recognition
First Claim
Patent Images
1. A method of recognizing a handwritten character comprising:
- receiving an input of said handwritten character, wherein said handwritten character is written with multiple strokes;
preprocessing said input to provide a one-stroke written representation of said handwritten character wherein said preprocessing comprises smoothing said points in said input, scaling said points, and resampling said points; and
, recognizing said handwritten character, wherein said recognizing is performed after said preprocessing.
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Abstract
Method and apparatus for handwriting recognition system for ideographies characters and other characters based on subcharacter hidden Markov models. The ideographies characters are modeled using a sequence of subcharacter models and by using two-dimensional geometric layout models of the subcharacters. The subcharacter hidden Markov models are created according to one embodiment by following a set of design rules. The combination of the sequence and geometric layout of the subcharacter models is used to recognize the handwriting character.
31 Citations
7 Claims
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1. A method of recognizing a handwritten character comprising:
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receiving an input of said handwritten character, wherein said handwritten character is written with multiple strokes;
preprocessing said input to provide a one-stroke written representation of said handwritten character wherein said preprocessing comprises smoothing said points in said input, scaling said points, and resampling said points; and
,recognizing said handwritten character, wherein said recognizing is performed after said preprocessing.
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2. A computer readable storage medium containing executable computer program instructions which when executed by a digital processing system cause said system to perform a method comprising:
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receiving an input of a handwritten character which is written with multiple strokes;
preprocessing said input to provide a one-stroke written representation of said handwritten character wherein said preprocessing comprises smoothing said points in said input, scaling said points, and resampling said points; and
,recognizing said handwritten character after said preprocessing. - View Dependent Claims (3, 4)
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5. A digital processing system comprising:
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an input tablet for inputting handwritten characters;
a bus coupled to said input tablet;
a processor coupled to said bus; and
,a memory coupled to said processor, said processor receiving an input of a handwritten character and preprocessing, before recognition of said handwritten character, said input to provide a one-stroke written representation of said handwritten character wherein said preprocessing comprises smoothing said points in said input, scaling said points, and resampling said points.
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6. A digital processing system comprising:
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means for receiving an input of a handwritten character which is written with multiple strokes;
means for preprocessing said input to provide a one-stroke written representation of said handwritten character wherein said preprocessing comprises smoothing said points in said input, scaling said points, and resampling said points; and
,means for recognizing said handwritten character after said preprocessing. - View Dependent Claims (7)
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Specification