Method and apparatus for automatic determination of text line, word and character cell spatial features
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United States of America Patent
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Jan 24, 1995
Grant Date -
N/A
app pub date -
Apr 19, 1993
filing date -
Apr 19, 1993
priority date (Note) -
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Abstract
An automatic character cell determining apparatus automatically determines the character cells within the text image of a document. A connected component generating means generates connected components from the pixels comprising the text image. A bounding box generating means generates a bounding box surrounding each connected component. A character cell determining means for locating character cells comprising one or more connected components comprises a vertical splaying means and a horizontal splaying means for ensuring white spaces between lines and connected components, a vertical profile means for determining the vertical positions of a line, means for splitting ligatures of two or more connected components and means for generating character cells grouping together one or more connected components.
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