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Personal identity recognising method based on pinna geometric parameter

A technology of identification and geometric parameters, applied in the field of personal identification, can solve the problems of affecting the measurement results of the shape and structure of the auricle, not being used, not being accurate and stable enough, etc.

Inactive Publication Date: 2005-08-24
SHENYANG POLYTECHNIC UNIV
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AI Technical Summary

Problems solved by technology

However, this feature has not been utilized in the current research on human ear recognition methods.
[0010] (2) In the measurement of auricle shape and structure, the determination of reference coordinates is very important. The current method of determining reference coordinates is not accurate and stable enough, which directly affects the measurement results of auricle shape and structure, resulting in a low ear recognition rate

Method used

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  • Personal identity recognising method based on pinna geometric parameter
  • Personal identity recognising method based on pinna geometric parameter
  • Personal identity recognising method based on pinna geometric parameter

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Embodiment Construction

[0039] The flow chart of the human ear recognition method proposed by the present invention is as follows: figure 1 As shown, the specific implementation steps are as follows:

[0040] Step 1: Determine the position of the eye pupil from the head image

[0041] First, get the head image

[0042] Shoot the head image of the frontal person, look straight at the two eyes, make the two eyes roughly on a horizontal line, expose the auricle part and the human eye part, and make the two auricles roughly symmetrical. When capturing images, there are no other people or moving objects in line of sight other than the subject.

[0043] Second, segment the head region image

[0044] The head image contains background information, which will affect feature extraction, so it must be segmented from the image. According to the requirements of the first step, the background of the captured image is static and unchanged. Before taking the head image, take a background image. When the head ...

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Abstract

An individual identification attestation method based on the auricle geometrical parameter, and adopts the connection of the vidicon and the computer, including the following processes: through the head image decide the position of the pupil of eyes; confirm the coordination origin of the head image, and carry out angle amendment to the head image; assure the mouth position, the two side borders of face, the upper, the lower, the external and the appointed frontier nodes of the auricle; calculate the relative width and the height of the auricle to get the parameter of the ears' characteristics; and match the ears' characteristics. This invention has the strong points of convenient method of getting image, the low cost of equipment, the stable character and the accurate attestation.

Description

technical field [0001] The invention belongs to the personal identification technology based on human biological feature identification, in particular to the measurement and identification of ear features. Background technique [0002] Identity verification is a basic problem that everyone encounters on a regular basis. Identity verification is mainly used in banking, customs, public security, e-commerce, e-government, network security and other occasions that need to verify personal identity. [0003] Traditional identity verification mainly has the following two methods: (1) through various certificates, such as ID cards, work permits, credit cards, savings cards, phone cards, etc.; (2) through personal identification numbers and passwords. Its main disadvantage is that it is easy to be stolen, and the former is easy to lose, and the latter is easy to forget, which are not safe enough. [0004] Identity confirmation based on human biometric identification is based on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
Inventor 苑玮琦
Owner SHENYANG POLYTECHNIC UNIV
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