Image analysis – Image segmentation – Segmenting individual characters or words
Reexamination Certificate
2011-01-18
2011-01-18
Chawan, Sheela C (Department: 2624)
Image analysis
Image segmentation
Segmenting individual characters or words
C382S202000
Reexamination Certificate
active
07873217
ABSTRACT:
A system for line extraction in digital ink. The digital ink represents handwritten input and is comprised of a stroke sequence. The system comprises a processor configured for: receiving the digital ink from a pen device; segmenting the strokes into a sequence of substrokes; grouping substrokes about a selected substroke into a temporally preceding group of substrokes and a temporally subsequent group of substrokes; calculating a centroid for each substroke or group of substrokes; calculating angular differences between the selected substroke and its temporally neighbouring groups of substrokes; and determining positions of extrema of the angular differences. The extrema correspond to substrokes at line breaks, thereby enabling line extraction in the stroke sequence.
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Koubaroulis Dimitrios
Lapstun Paul
Napper Jonathon Leigh
Chawan Sheela C
Silverbrook Research Pty Ltd
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