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Patent classifications
G
PHYSICS
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G06
COMPUTING OR CALCULATING; COUNTING
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G06V
IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
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30/00
Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
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G06V30/10
Character recognition
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G06V30/18
Extraction of features or characteristics of the image
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G06V30/18086
by performing operations within image blocks or by using histograms
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G06V30/18095
Summing image-intensity values; Projection and histogram analysis
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