In this paper a new feature called crosscount for document analysis is introduced.The feature crosscount is a function of white line segment with its start on the edgeof document images. It reflects not only the conto...In this paper a new feature called crosscount for document analysis is introduced.The feature crosscount is a function of white line segment with its start on the edgeof document images. It reflects not only the contour of image, but also the periodicity of white lines(background) and text lines in the document images. In complexprinted-page layouts, there are different blocks such as textual, graphical, tabular, andso on. of these blocks, textual ones have the most obvious periodicity with their homogeneous white lines arranged regularly. The important property of textual blockscan be extracted by crosscount functions. Here the document layouts are classifiedinto three classes on the basis of their physical structures. Then the definition andproperties of the crosscount function are described. According to the classification ofdocument layouts, the application of this new feature to different types of documentimages analysis and understanding is discussed.展开更多
文摘In this paper a new feature called crosscount for document analysis is introduced.The feature crosscount is a function of white line segment with its start on the edgeof document images. It reflects not only the contour of image, but also the periodicity of white lines(background) and text lines in the document images. In complexprinted-page layouts, there are different blocks such as textual, graphical, tabular, andso on. of these blocks, textual ones have the most obvious periodicity with their homogeneous white lines arranged regularly. The important property of textual blockscan be extracted by crosscount functions. Here the document layouts are classifiedinto three classes on the basis of their physical structures. Then the definition andproperties of the crosscount function are described. According to the classification ofdocument layouts, the application of this new feature to different types of documentimages analysis and understanding is discussed.
