Research On Form Extracting And Compressed Storage Of Similar Form Image Documents

ABSTRACT: With the rapid development of the society, people require more accurate and faster information. As one of the important information resources, archives are threatened by the global information waves. People need the effective management and utilization on the archives, but the old way cannot meet the need anymore. How to change the old manual way to the digital one becomes a critical issue.Archive digitizing is an important stage in the construction of the archival base, so the research meaningful and worthwhile.In reality, large amount of data with various forms of paper media documents is there to be dealt with, of which, form of documents, such as: all bank notes, tax tables, financial statements, registration forms, personnel files and attendance table needs to be especially focused. These documents are usually among the first that needs to input into computer to collate, classify, store, analysis, and even a higher level processing.These forms of documentation have following features: the number usually very large, the structure similar, often including some pre-printed text with a multiple of handwritten area. We will call these forms as similar form image documents.Digital archive processing was first initiated in the United States and the United Kingdom, and they have made great achievements in both theory and practice. We China is a little late in this area, the state-of-art can be regarded in the stage of exploration and feasibility, and a unified working standard has not founded. File image quality still needs to be further improved; image file storage space needs to be further compressed and other issues. This paper draws on existing research results, in accordance with practice, the paper files of similar forms of digital image files dealing with a number of application, paper files from the digital production, summed up the careful study of paper files and digital preprocessing, including paper files digital processing hardware and equipment, files, digital document storage format and the choice of paper files of digital images scanning and binary files, such as image preprocessing. Research summary form similar to the characteristics of image files, which form lines from the public and skew correction to the study, in view of the actual study, which is based on Hough transform the image files from the forms and tilt correction method, and to form images tilt angle of the smaller, technology-based linear movement of the image to achieve rapid correction tilt correction, in the form of lines at the same time to complete their endpoint coordinate simultaneous recording. Finally, we realized the compressed image file storage which based on the characteristics of a meta-information in order to replace the pixel information. Save the form lines alone, hen carry on to the different contents of each file to save respectively. Compared with the usually respective storage of form image documents, it has very big actual meaning and application value to the modern construction of the form file.