A Handwriting Authentication System Based on Stroke Curvature Detection

A technology of curvature detection and handwriting, applied in the direction of instruments, character and pattern recognition, character recognition, etc., can solve the problems of difficulty in counterfeiting, lack of versatility and robustness of counterfeiting methods, and inaccessibility, etc., to achieve real-time Good, objective results, and intuitive feedback

CN104809451BActive Publication Date: 2017-12-26HOHAI UNIV CHANGZHOU
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-12-26

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Abstract

The invention discloses a handwriting identification system based on stroke curvature detection, which includes a handwriting sample database module, an image acquisition and entry module, a preprocessing module, a feature analysis and extraction module, a feature moment processing module, a similarity measurement module, and a result output feedback module . The handwriting discriminating process is that the preprocessing module preprocesses the image collected in real time by the image acquisition module, the feature analysis and extraction module extracts the eigenvalues ​​of strokes in the four directions of horizontal, vertical, left and right, and the feature moment processing module performs stroke eigenvalue processing and The handwriting characteristic moment is generated, and the similarity measurement module adopts the method of vector angle similarity measurement to measure the similarity between the handwriting characteristic moment to be authenticated and the handwriting characteristic moment in the database, and the result output feedback module outputs the corresponding result. The handwriting authenticating system of the present invention can rapidly perform text-independent handwriting authenticating, and the authenticating result is stable and objective.
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Description

technical field

[0001] The invention relates to a handwriting identification system based on stroke curvature detection, which belongs to the technical field of digital image processing and handwriting identification. Background technique

[0002] The rapid development of information technology has brought great convenience to people's daily life. At the same time, accurate authentication of personal identity and protection of information security have become a key problem that needs to be solved urgently in today's information age. Handwriting is a relatively stable behavioral feature of people. The use of handwriting for personal identity authentication is non-invasive (or non-contact), easy to obtain, and easy to accept. It is an important identification of personal identity. means.

[0003] Over the years, traditional manual handwriting authentication has been mostly used in the field of handwriting authentication, but this method has gradually exposed its drawbacks and...

Examples

Embodiment Construction

[0024] The handwriting authentication system based on stroke curvature detection of the present invention comprises a software operating system and a hardware working system, and the whole system software module structure is as follows: figure 1 As shown, it includes a handwriting database module, a handwriting sample image acquisition and input module, a handwriting sample image preprocessing module, a feature analysis and extraction module, a handwriting feature moment processing module, a similarity measurement module, and a result output feedback module:

[0025] 1) Handwriting database module: Pre-store representative user personal text independent data information that has been processed by the system, including handwriting feature moments, personal information (such as name, gender, ID number, etc.), and subsequent authentication process These information can be used to identify handwriting sample images that need to be identified.

[0026] 2) Handwriting sample image a...