Preprocessing of multi-line rotated electronic ink
First Claim
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1. A method of preprocessing an electronic ink object comprising the steps of:
- (a) segmenting the electronic ink object into at least one line;
(b) estimating a writing angle of each line; and
(c) rotating each line to make horizontal a centerline of the line.
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Abstract
An electronic ink object is preprocessed for improving handwriting recognition results. An electronic ink object, possibly having multiple lines of non-horizontal ink, is preprocessed by segmenting or separating the electronic ink object into one or more lines, computing a writing angle of each line, and rotating each line so that it is horizontal.
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Citations
25 Claims
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1. A method of preprocessing an electronic ink object comprising the steps of:
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(a) segmenting the electronic ink object into at least one line;
(b) estimating a writing angle of each line; and
(c) rotating each line to make horizontal a centerline of the line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for processing an electronic ink object having at least one ink stroke comprising in combination:
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(a) an input that receives the electronic ink object;
(b) an electronic ink feature generator that receives the inputted electronic ink object and generating at least one feature for the at least one ink stroke of the electronic ink object;
(c) a classifier that classifies the at least one ink stroke of the electronic ink object into at least one line based on the feature of the ink stroke;
(d) a centerline generator that generates a centerline of the at least one line of the electronic ink object; and
(e) an ink transformer that rotates the at least one line of electronic ink based on the centerline. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A system for processing an electronic ink object having at least one ink stroke comprising in combination:
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(a) an input that receives the electronic ink object;
(b) a centerline generator that generates a centerline of the electronic ink object; and
(c) an ink transformer that rotates the electronic ink object based on the centerline. - View Dependent Claims (25)
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Specification