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Method for extracting and authenticating stroke extraction and connection characteristics in online handwriting authentication

An authentication method and stroke technology, applied in the field of information security, can solve the problems of lack of writing perception ability, difficulty in effectively extracting strokes and continuous strokes, etc.

Active Publication Date: 2020-06-19
HUBEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing technology lacks the ability to perceive writing standards, so it is difficult to effectively extract the features of strokes and continuous strokes, and further analyze the identity identification value of these features

Method used

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  • Method for extracting and authenticating stroke extraction and connection characteristics in online handwriting authentication
  • Method for extracting and authenticating stroke extraction and connection characteristics in online handwriting authentication
  • Method for extracting and authenticating stroke extraction and connection characteristics in online handwriting authentication

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Embodiment Construction

[0057] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0058] The extraction and authentication method of the features of strokes and continuous strokes in online handwriting authentication, such as figure 1 shown, including the following steps:

[0059] A) Pre-learning of features of strokes and continuous strokes: collect handwriting samples of the standard Chinese character c from the crowd to obtain a pre-learning handwriting sample set, identify the stroke type in the pre-learning handwriting sample set, and determine whether the writing force component is less than a certain threshold To judge whether there is a pen lift when writing each paragraph of strokes, according to the identified stroke types, count the number of times that the virtual lift and continuous stroke features of various strokes appear in the crowd, and compare the virtual lift and continuous strokes of the variou...

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Abstract

The invention relates to the field of information security, and discloses a method for extracting and authenticating stroke extraction and connection characteristics in online handwriting authentication. The method comprises the following steps: carrying out stroke extraction and pen feature pre-learning; obtaining the probability of occurrence of the false extraction and continuous extraction features in the crowd; registering stroke extraction and connection stroke characteristics, counting the occurrence frequency of stroke virtual extraction and connection stroke characteristics of a registered user, finding out stable virtual extraction and connection stroke according to the occurrence frequency, authenticating the stroke extraction and connection stroke characteristics, calculating the occurrence probability of stable and consistent combination of the virtual extraction stroke and the connection stroke in the crowd, and taking the probability as a basis for further judgment. Theinvention discloses a method for extracting and authenticating stroke extraction and connection characteristics in online handwriting authentication. According to the method, the characteristics of the virtual extraction pen or the continuous extraction pen in the local strokes can be effectively extracted, the occurrence probability of the stable and consistent combination of the virtual extraction pen and the continuous extraction pen in the crowd is estimated, a writing mode which violates writing standards and is stable can be recognized, and the handwriting authentication performance is improved.

Description

technical field [0001] The invention relates to the field of information security, in particular to a method for extracting and authenticating features of strokes and strokes in online handwriting authentication. Background technique [0002] Online handwriting authentication refers to a technology that uses a special input device to obtain the user's handwriting online, and compares the personalized features contained in it to realize user identity authentication. [0003] Words are the carrier of ideas, and handwriting is the form of expression of words. In the long evolution process of characters, in order to facilitate identification and communication, writing standards have been gradually formed. The so-called writing norms refer to the rules that people should abide by when writing characters, including the structure and composition of Chinese characters, the relative positional relationship of strokes, the writing order and writing method of strokes, etc. The proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06F21/32
CPCG06F21/32G06V30/333
Inventor 邹杰徐志刚
Owner HUBEI UNIV OF TECH
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