Character recognition

Full Title

Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition (scanning, transmission or reproduction of documents or the like H04N1/00) > Character recognition

13 direct subcodes

Child Classifications

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G06V 30/12 Detection or correction of errors, e.g. by rescanning the pattern
G06V 30/14 Image acquisition
G06V 30/16 Image preprocessing
G06V 30/18 Extraction of features or characteristics of the image
G06V 30/19 Recognition using electronic means
G06V 30/199 Arrangements for recognition using optical reference masks, e.g. holographic masks
G06V 30/20 Combination of acquisition, preprocessing or recognition functions
G06V 30/22 characterised by the type of writing
G06V 30/24 characterised by the processing or recognition method (segmentation of character regions G06V30/148)
G06V 30/26 Techniques for post-processing, e.g. correcting the recognition result
G06V 30/28 specially adapted to the type of the alphabet, e.g. Latin alphabet
G06V 30/30 based on the type of data
G06V 30/32 Digital ink