Contextual character geometry is the geometric information available only when a character presents in the context of a word. Such information includes the character's location and relative size in the entire word image, forming a bounding box of the character. The differences between the geometry of an image segment and the expected geometry of a candidate character are considered as additional features to refine the recognition of individual characters. A typical word recognizer based on over-segmentation and segment-combination is used to illustrate the use of these new features and experimental results have shown significant improvement of recognition accuracy, especially on large lexicons.
Incorporating contextual character geometry in word recognition
01.01.2002
273395 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Incorporating Contextual Character Geometry in Word Recognition
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