Research on Chinese Document Layout Analysis and Reconstruction
Qian Liu · Journal of Shenyang Jianzhu University · 2008
We try to automatically extract and resume Chinese document layout in the process of converting paper media documents into electronic format.First,non-text region was extracted by searching connected domain,according to the size feature of connected domain.Then extracted non-text region forms,lines and images were distinguished according to characteristics of projection histogram,aspect ratio and the ratio of black and white pixels.The correct segmentation for text region was achieved on the basis of the vertical projection and horizontal-cut method.And the original layout's data and style were described,organized,and restored by XML document file format.The purpose of resuming the original text can be realized by reconstructing and generating universal electronic document that maintains the format of original layout.The results show that the improved layout analysis has accurate division and faster rate.The reconstruction method based on XML technology achieves more accurate reconstruction for document layout.The threshold parameters,obtained by adopting statistical characteristics,are used in the improved layout analysis methods,which have improved the system adaptability.This method suits standardized document better,and can be applied to complex layouts with certain manual intervention.