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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G06V30/22
characterised by the type of writing
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G06V30/228
of three-dimensional [3D] handwriting, e.g. writing in the air
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