Image analysis – Pattern recognition – On-line recognition of handwritten characters
Reexamination Certificate
2011-08-30
2011-08-30
Le, Brian Q (Department: 2624)
Image analysis
Pattern recognition
On-line recognition of handwritten characters
C382S119000, C382S185000, C382S188000
Reexamination Certificate
active
08009915
ABSTRACT:
In embodiments consistent with the subject matter of this disclosure, a user may input strokes as digital ink to a processing device. The processing device may partition the input strokes into multiple regions of strokes. A first recognizer and a second recognizer may score grammar objects included in regions and represented by chart entries. The scores may be converted to a converted score, which may have at least a near standard normal distribution. The processing device may present a recognition result based on highest converted scores according to a recurrence formula. The processing device may receive a correction hint with respect to misrecognized strokes and may add a penalty score with respect to chart entries representing grammar objects breaking the correction hint. Incremental recognition may be performed when a pause is detected during inputting of strokes.
REFERENCES:
patent: 5481626 (1996-01-01), Matsubayashi
patent: 5627914 (1997-05-01), Pagallo
patent: 5655136 (1997-08-01), Morgan
patent: 7181068 (2007-02-01), Suzuki et al.
patent: 2004/0054701 (2004-03-01), Garst
patent: 2004/0090439 (2004-05-01), Dillner
patent: 2006/0001667 (2006-01-01), LaViola, Jr. et al.
patent: 2006/0045337 (2006-03-01), Shilman et al.
patent: 2006/0062466 (2006-03-01), Zou et al.
patent: 2006/0245654 (2006-11-01), Viola et al.
patent: 2006/0280370 (2006-12-01), Viola et al.
patent: 2007/0003147 (2007-01-01), Viola et al.
Blostein, et al., “Recognition of Mathematical Notation”, http://citeseer.ist.psu.edu/cache/papers/cs/5188/http:zSzzSzwww.qucis.queensu.cazSzhomezSzblosteinzSzmathrec.pdf/blostein96recognition.pdf.
Shilman, et al., “Recognition and Grouping of Handwritten Text in Diagrams and Equations”, Date: 2004, http://ieeexplore.ieee.org/ie15/9414/29882/01363972.pdf.
Twaakyondo, et al., “Structure Analysis and Recognition of Mathematical Expressions”, http://ieeexplore.ieee.org/ie13/4755/13183/00599029.pdf?isNumber=.
Abdulkader Ahmad
Dresevic Bodin
Predovic Goran
Viola Paul A.
Vukosavljevic Milan
Capitol City TechLaw
Irving Richard C.
Le Brian Q
Microsoft Corporation
Park Edward
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