System and method for ink or handwriting compression

Details System and method for ink or handwriting compression System and method for ink or handwriting compression

2007-11-27

2007-11-27

Bali, Vikkram (Department: 2624)

Image analysis

Image compression or coding

Contour or chain coding

C345S172000

Reexamination Certificate

active

10440643

ABSTRACT:
A system and method for compressing digital pen stroke data utilizing curve simplification. Digital pen stroke images (ink images) generate a relatively large amount of data to preserve the ink image generated on a device. Current ink compression algorithms utilize lossless compression algorithm that have limited success. The invention provides a lossy compression algorithm to reduce the amount of data required to store and transmit ink data. The invention utilizes a two-part algorithm to reduce and compress the number of data points representing the ink data. The invention also utilizes curve splines to reconstruct and smooth the lossy ink data image.

REFERENCES:
patent: 6101280 (2000-08-01), Reynolds
patent: 7039234 (2006-05-01), Geidl et al.
patent: 2003/0122802 (2003-07-01), Bryborn
patent: 2003/0123745 (2003-07-01), Bryborn

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