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Method for extracting tooth area from tooth image and personal recongition method and device

An identification method and tooth technology, applied in the field of personal identification, can solve the problems of complex algorithms, difficult to identify fingerprints, expensive and other problems

Inactive Publication Date: 2007-02-21
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, complex algorithms are required for facial recognition, and expensive equipment is required for iris recognition
In addition, it is difficult to recognize fingerprints when they are unclear or when fingers are stained with foreign substances or wet from sweat

Method used

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  • Method for extracting tooth area from tooth image and personal recongition method and device
  • Method for extracting tooth area from tooth image and personal recongition method and device
  • Method for extracting tooth area from tooth image and personal recongition method and device

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Embodiment Construction

[0018] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0019] figure 1 is a block diagram of a personal identification device using dental images according to a preferred embodiment of the present invention. The personal identification device includes a tooth image acquisition unit 11 , a tooth image processing unit 13 , and a tooth image database 15 .

[0020] The tooth image acquisition unit 11 is generally composed of a typical digital camera, such as a special camera for taking pictures of teeth, a camera connected to a personal computer, or a camera connected to a mobile communication terminal. When personal identification is required, the dental image acquisition unit 11 captures a dental image by photographing the entire frontal tooth portion of the person to be identified and supplies the dental image to the dental image processing unit 13 . It is preferable to photograph the teeth...

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PUM

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Abstract

A method of extracting a teeth area from a teeth image, and personal identification method and apparatus using characteristic elements that are extracted from the extracted teeth area are provided. The personal identification method includes constructing a database by correspondently storing teeth images from a plurality of persons and at least one teeth characteristic element of each person; (b) extracting an interline between an upper teeth portion and a lower teeth portion from an inner mouth area that is separated from a teeth image of a person to be identified, and extracting an upper teeth area and a lower teeth area on the basis of the interline; detecting one or more teeth characteristic elements from the upper and lower teeth areas; and searching the database based on the detected one or more teeth characteristic elements and determining identification pass or fail according to a similarity between the teeth image of the person to be identified and a teeth image searched from the database.

Description

technical field [0001] The present invention relates to personal identification technology, and in particular to a method for extracting tooth regions from tooth images, and a method and device for personal identification using the extracted characteristic elements of the tooth regions. Background technique [0002] Personal identification using a person's face, fingerprints, iris, texture on the back of the hand, or voice to allow access to a specific territory, such as a secure area. However, complex algorithms are required for facial recognition, and expensive equipment is required for iris recognition. In addition, it is difficult to recognize fingerprints when they are unclear or when fingers are stained with foreign substances or wet from sweat. Also, the texture pattern on the back of the hand changes with the environment. Therefore, it is desirable to have a personal identification method that uses a part of the body that rarely changes and can analyze an image of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00G06F19/00G06F17/30A61B5/117A61B5/1171A61B5/1172A61B5/1178G06K9/00G06K9/46G06T7/00H04N1/46H04N1/60
CPCG06K9/00362G06K9/00885G06V40/10G06V10/40
Inventor 金泰佑尹吉源
Owner SAMSUNG ELECTRONICS CO LTD
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