Satellite ink dot-based ink-jet printing added modification file identification system and method

Abstract

The invention discloses a satellite ink dot-based ink-jet printing added altered file identification system and method, and relates to the field of file verification, the system comprises a data management module, a database and a data processing module; the data management module is respectively connected with a query unit and a tool management unit in the data processing module; the data management module is used for acquiring a sample file and extracting satellite ink dot information of the sample file; the database is connected with the data management module, the query unit and the tool management unit. The database is used for storing satellite ink dot information of a normal file, and the query unit is used for comparing the satellite ink dot information of a sample file with the satellite ink dot information of the normal file to obtain ink-jet printer information associated with the satellite ink dot information of the sample file; the tool management unit is used for judgingwhether a modification file is added to the sample file or not according to satellite ink dot information and ink-jet printer information of the sample file. According to the method, whether the altered file is added or not can be accurately and quickly identified.

Description

Technical field [0001] The invention relates to the field of document verification, and in particular to a system and method for discriminating additional and altered documents in inkjet printing based on satellite ink dots. Background technique [0002] A altered document refers to a fake document produced by using various forgery means to change the content or appearance of the original document based on the original document. Various additions and alterations of documents are a kind of material evidence often encountered in judicial practice. Modifying the content of the documents by adding and printing to form false documents is a typical method of altering documents. Different from the randomness and convenience of adding and altering handwritten documents, the addition of printed documents is more difficult and demanding. Using the identification of printing laws to determine whether there is alteration in printed documents is playing an increasingly important role in inve...

AI Technical Summary

Problems solved by technology

However, there are deficiencies in the previous research on the characteristics of inkjet printing documents. For example, how to grasp and use the operation rules of the print head and the characteristics of satellite ink dots to judge whether the document has been altered has not yet been reported.

At the same time, if there are obvious differences in the color composition, color, shape, editing and layout of the added files, it is easy to judge the altered files, and if there is no obvious difference, it is difficult to identify

It is often difficult to fully reveal the fact of adding and printing altered documents only by the above-mentioned technical means, and it is also very prone to misjudgment, which is not conducive to the popularization and application of this technology

The limitations of the inspection methods for inkjet printing altered documents limit the identification of altered facts, and there is no query and identification system to solve such problems. Therefore, there is an urgent need for a standardized, simple, effective, and reliable identification of inkjet additives. Method of Printing Altered Documents to Guarantee Implementation of Altered Document Identification

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