Identity identification method based on lid speech characteristic
A technology of identity authentication and lip language, applied in the field of information security, can solve the problems of lack of identity authentication mechanism, lack of expression of lip language features with identity discrimination, insufficient accuracy of lip language feature extraction, etc.
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[0029] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.
[0030]As shown in Figure 1, the present embodiment at first carries out the automatic extraction of lip language feature, mainly comprises: 1) the geometric feature of lips, promptly describes the length and width information of lip area; 2) the outline feature of lips, promptly describes the contour shape of lips 3) Internal features of the lip area, which describe information such as teeth and tongue that may be contained inside the lips; 4) Spectral features of the lips, which describe the characteristics of lip movement in the frequency domain. Then, through the m...
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