KR20020003627A - Means and appliances for preventing finger print from being printed on finger print recognition system - Google Patents

Means and appliances for preventing finger print from being printed on finger print recognition system Download PDF

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Publication number
KR20020003627A
KR20020003627A KR1020000034325A KR20000034325A KR20020003627A KR 20020003627 A KR20020003627 A KR 20020003627A KR 1020000034325 A KR1020000034325 A KR 1020000034325A KR 20000034325 A KR20000034325 A KR 20000034325A KR 20020003627 A KR20020003627 A KR 20020003627A
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South Korea
Prior art keywords
fingerprint
fingerprints
user
window
finger print
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KR1020000034325A
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Korean (ko)
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유춘열
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유춘열
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Priority to KR1020000034325A priority Critical patent/KR20020003627A/en
Publication of KR20020003627A publication Critical patent/KR20020003627A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/10—Image acquisition
    • G06V10/12—Details of acquisition arrangements; Constructional details thereof
    • G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
    • G06V10/147—Details of sensors, e.g. sensor lenses

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  • Image Input (AREA)
  • Collating Specific Patterns (AREA)

Abstract

PURPOSE: An apparatus and method for preventing fingerprints from plagiarizing is provided to prevent a unauthorized person from using the fingerprint which is imprinted on glass when a user holds the fingerprint in a fingerprint recognition system. CONSTITUTION: In case that a user holds the user's fingers to a small-sized window of a security device capable of identifying fingerprints, the user's fingerprints are identified through devices such as a CCD element. The user's fingerprints are imprinted on the window in this course. Therefore, the user pays attention to deal with the identification device in order not to touch the window when the user's fingerprints are identified through the identification device. Forms of the fingerprints are estimated by a computer. After that, original fingerprints are identified.

Description

지문인식시스템에서 지문이 찍히는 것을 방지하기 위한 장치와 방법{Means and appliances for preventing finger print from being printed on finger print recognition system}Means and appliances for preventing finger print from being printed on finger print recognition system

지문을 인식하는 보안장치에서 지문을 조그만 창에 갖다 대면, 이를 ccd 소자 등의 장치를 통하여 지문을 인식한다. 그런데 이러한 과정에서 지문이 손가락을 갖다대는 유리창 상에 찍힌다. 이 지문을 제 3자가 이용하여 가짜 지문을 만들어 활용할 소지가 있다. 본 발명은 이러한 지문이 찍히지 않도록 하는 장치이다.When a fingerprint is placed on a small window in a security device that recognizes a fingerprint, the fingerprint is recognized through a device such as a ccd device. In this process, however, the fingerprint is taken on the glass window where the finger is placed. This fingerprint may be used by a third party to make a fake fingerprint. The present invention is a device to prevent such fingerprints from being taken.

지문인식 시스템 상에서 지문이 찍히지 않도록 한다.Avoid fingerprints on the fingerprint system.

손가락을 조그마한 유리창에 갖다 대어도 찍히지 않도록 한다. 혹은 손가락이 유리창에 닿지 않도록 하며 지문을 인식할 수 있도록 한다.Put your finger on a small glass window so it doesn't get caught. Alternatively, keep your fingers away from the window and allow fingerprints to be recognized.

손가락의 지문 부위를 인식시스템 상에 올려 놓아도 지문이 찍히지 않도록 유리창의 면을 형성하는 방법에서 가장 효과적인 방법을 도출한다. 지문에 의해 더럽혀지지 않도록 지문의 주요한 부위는 가급적 유리면 위에 어떠한 형상도 구성되지 않도록 비워두도록 한다.The most effective method is to form the surface of the window so that the fingerprint of the finger is not placed on the recognition system. In order not to be soiled by the fingerprint, the main part of the fingerprint should be left blank so that no shape is formed on the glass surface.

도 1은 손가락을 지문인식 시스템 상의 유리면에 닿지 않도록 구성한 그림이다.FIG. 1 is a diagram in which a finger is not touched with a glass surface on a fingerprint recognition system.

도 2는 손가락의 지문이 지문인식 시스템 상의 유리창 면에 닿아도 지문이 남지 않도록 구성한 그림이다.Figure 2 is a diagram configured so that the fingerprint does not remain even if the fingerprint of the finger touches the glass window surface on the fingerprint recognition system.

손가락으로 어떠한 물체를 만져도 지문이 남지 않도록 하는 방법으로는To prevent fingerprints from touching anything with your finger,

a. 손가락을 지문을 인식하기 위한 빛이 나오는 유리창에 닿지 않도록 한다.a. Keep your fingers away from the glazing window for fingerprint recognition.

b. 손가락이 닿아도 지문이 찍히지 않도록 한다.b. Make sure your fingerprints don't print when your fingers touch.

위의 a와 같이 하는 방법으로는 그림 1a와 같이 손가락(도 1의 1.1)을 지문인식 시스템 상의 유리창(1.2)에 닿지 않게 공중에 띄운다. 이렇게 하여도 지문을 올바로 읽도록 하기 위해서는 지문을l읽기 위해서 ccd의 성능이 좋아야 한다. 1.3은 지문인식 시스템 상에서 나오는 빛을 나타낸다. 그러나 이렇게 하면 사람에 따라서 손가락을 갖다 대는 높이가 일정하지 않게 된다.In the above method, a finger (1.1 in Fig. 1) is placed in the air without touching the glass window (1.2) on the fingerprint recognition system as shown in Fig. 1a. Even in this case, in order to read the fingerprint correctly, the performance of ccd must be good to read the fingerprint. 1.3 represents the light coming from the fingerprint system. However, this will cause the height of the finger not to be constant depending on the person.

도 1b는 손가락을 대고 눌러도 손가락이 유리창에 닿지 안도록 구성한 것이다. 즉, 유리창 가장자리에 손가락을 올려 놓을 수 있도록 사각형 틀을 일정 높이로 형성한다. 도 1b에서 손가락 1.1이 가장자리 틀 1.4위에 올려 놓아도 손가락이 유리창에 닿지 않도록 한다. 1.4의 가장 자리의 4부위가 모두 놓이 형성되거나 어느 한쪽은 개구되어도 상관없다. 손가락의 대소에 따라 1.4의 폭을 조절할 수 있도록 형성하는 것도 가능하다.Figure 1b is configured so that the finger does not touch the glass window even when pressing the finger. That is, a rectangular frame is formed at a certain height so that the finger can be placed on the edge of the glass window. In Fig. 1b, even if finger 1.1 is placed on the edge frame 1.4, the finger does not touch the glass window. All four parts of the edge of 1.4 may be formed or opened on either side. It is also possible to form the width of 1.4 according to the size of the finger.

도 2는 손가락이 유리면에 닿아도 지문이 찍히지 않도록 요철로 유리창 면을 구성하였다.Figure 2 is a glass window surface was formed with irregularities so that fingerprints are not taken even if the finger touches the glass surface.

2.1은 평면도, 2.2는 정면도이다. 2.3이 요철로 유리창면을 구성하여, 손가락을 갖다 대어도 지문이 찍히지 않는다. 단, 빛이 유리창 아래에서 나와 손가락의 지문을 인식하고자 할 때에 2.3의 반원형의 형상에 의해 지문이 해당 부위가 볼록렌즈에 의한 형상으로 불거저 보인다. 이러한 현상은2.1 is a top view and 2.2 is a front view. 2.3 The surface of the window is made of irregularities, and fingerprints are not taken even if the finger is touched. However, when the light comes out from the glass window to recognize the fingerprint of the finger, the fingerprint is seen in the shape of the convex lens by the semi-circular shape of 2.3. This phenomenon

2.3의 반원의 크기를 아주 적게 하여 이러한 현상을 최소화 하거나You can minimize this by minimizing the size of the semicircle of 2.3.

혹은 컴퓨터에 의해 이러한 효과를 정밀하에 계산하여 원래의 손가락의 모양의 형태로 보이도록 계산한다. 2.3의 형상은 손가락이 유리창에 닿지 않고 지문만을 올바로 인식하면 되므로, 반원형, 혹은 원기둥의 형상 혹은 4각기둥, 삼각뿔 등 다양한 형태로 구성이 가능하다. 가장 편리한 것은 원기둥이다.Or the computer calculates these effects precisely and looks like the shape of the original finger. The shape of 2.3 can be configured in various forms such as semi-circular, cylindrical, or quadrilateral, triangular pyramid because the finger does not touch the window and correctly recognizes only the fingerprint. The most convenient is the cylinder.

유리창 면에 어떠한 형성을 구성하면 이것의 영향으로 지문의 주요한 부분이 제대로 인식이 안될 수가 있다. 이러한 문제를 막기 위해서 지문의 중요한 부위에는 가급적 형성이 되지 않도록 한다. 이러한 구성은 지문에 의해 유리창 면이 더러워 지는 것을 방지할 수 있다.If any formation is made on the surface of the window, the effect of this may be that the major part of the fingerprint is not properly recognized. To avoid this problem, try to avoid the formation of important areas of the fingerprint. This configuration can prevent the windshield surface from being soiled by fingerprints.

지문이 유리창 면에 찍히지 않아 안전한 지문인식 시스템이 된다.Fingerprints aren't stamped on the window, making it a secure fingerprint recognition system.

지문인식 시스템의 유리창 면에 형성한 모양에 의해 지문이 왜곡되게 인식시스템에 보여도 컴퓨터에 의해 계산하여 원래의 지문의 형상을 알아낼 수 있다. 따라서 다양한 형태의 지문인식 시스템의 구성이 가능하다.Even if the fingerprint is distorted by the shape formed on the window surface of the fingerprint recognition system, it can be calculated by a computer to find out the shape of the original fingerprint. Therefore, various types of fingerprint recognition systems can be configured.

원기둥의 형상을 지문인식 시스템의 유리창 면에 형성하면 전혀 왜곡된 지문의 인식이 일어나지 않는다.If the cylindrical shape is formed on the window surface of the fingerprint recognition system, no distortion of the fingerprint is recognized.

Claims (1)

1. 빛의 발사부, 빛의 발사부를 보호하고 빛을 투사시키기 위한 투영부, 물체의 형상을 인식히기 위한 물체 인식부로 구성된 기기에서, 언급된 물체의 형상을 인식시키기 위해 물체를 언급된 빛의 투영부에 갖다 대어도 언급된 물체의 흔적이 언급된 투영부에 남지 않도록 구성하는 것을 특징으로 하는 물체인식 흔적 남기지 않는 장치.1. In a device consisting of a light emitter, a projection part for protecting and projecting the light emitter, and an object recognizing part for recognizing the shape of the object, the object being referred to in order to recognize the shape of the mentioned object. A device which does not leave a trace of object recognition, wherein the trace of the mentioned object is not left on the projected projected part even when placed on the projected projected part.
KR1020000034325A 2000-06-21 2000-06-21 Means and appliances for preventing finger print from being printed on finger print recognition system KR20020003627A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115035640A (en) * 2022-08-10 2022-09-09 湖南朗国视觉识别研究院有限公司 Intelligent door lock unlocking method based on human body feature recognition and door lock system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115035640A (en) * 2022-08-10 2022-09-09 湖南朗国视觉识别研究院有限公司 Intelligent door lock unlocking method based on human body feature recognition and door lock system

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