WO2014077447A1 - 살아있는 눈 식별 방법 및 장치 - Google Patents
살아있는 눈 식별 방법 및 장치 Download PDFInfo
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- WO2014077447A1 WO2014077447A1 PCT/KR2012/010536 KR2012010536W WO2014077447A1 WO 2014077447 A1 WO2014077447 A1 WO 2014077447A1 KR 2012010536 W KR2012010536 W KR 2012010536W WO 2014077447 A1 WO2014077447 A1 WO 2014077447A1
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- iris
- change
- led
- pupil
- living eye
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0012—Biomedical image inspection
- G06T7/0014—Biomedical image inspection using an image reference approach
- G06T7/0016—Biomedical image inspection using an image reference approach involving temporal comparison
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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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T1/00—General purpose image data processing
- G06T1/0007—Image acquisition
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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
- G06V10/40—Extraction of image or video features
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/18—Eye characteristics, e.g. of the iris
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/40—Spoof detection, e.g. liveness detection
- G06V40/45—Detection of the body part being alive
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10004—Still image; Photographic image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10141—Special mode during image acquisition
- G06T2207/10152—Varying illumination
Definitions
- the present invention is to install the IR LED light and the illumination for changing the ambient illumination in the front or one side of the iris recognition camera to determine whether the iris of the living eye when taking the iris image with the iris recognition camera One or more of the ratio of the pupil size change, the number or location of the IR LEDs on the iris and / or pupil, the change in the iris image area due to the blinking eye, and the change in the gaze direction
- the present invention relates to a live eye identification method and apparatus for determining whether a iris of a live eye is present.
- iris recognition technology is used in various ways in combination with privacy and security, there is a risk of being hacked into imitation irises such as printed iris images, iris image photographs, eye models, and contact lenses printed with iris patterns.
- imitation irises such as printed iris images, iris image photographs, eye models, and contact lenses printed with iris patterns.
- the importance of identifying living and fake eyes is becoming more important.
- the Republic of Korea Patent Publication No. 10-2000-0061065 obtains the iris image using two lights, whether the image reflected on the iris image obtained by the camera by turning one of the two lights on or off
- Technical information on how to determine whether a living eye or a fake eye is determined by determining whether it is a live eye or a fake eye is disclosed.
- the printed paper, the imitation eye, and the like are placed in front of the camera, there is a problem that the possibility that the iris recognition system misidentifies this as a living eye still exists.
- the technical problem of the present invention is to install an IR LED light and an illumination for changing the ambient illumination in front or one side of a conventional iris recognition camera to determine whether the iris of the living eye when photographing with an iris recognition camera. One or more of whether the ratio of the iris and pupil size changes, whether the number or location of the IR LEDs on the iris and / or pupil changes, and whether the iris image region changes due to the blink of an eye, and whether the direction of gaze changes.
- the present invention provides a method and apparatus for identifying a living eye that determines whether the iris is a living eye.
- Another technical problem of the present invention is a signal for driving an IR LED light that is used as an illumination for iris imaging or used to make an IR LED reflection image in the iris and / or pupil as a pulse having regular or irregular periods.
- the iris of the living eye when the period of the pulse supplied to the IR LED light and the period of the iris image reflected by the IR LED in the pupil and / or pupil of the iris image are compared and matched while the iris image is taken while supplying To judge.
- Technical solutions of the present invention include the steps of photographing the iris while on / off the illumination installed on the front or one side of the iris recognition camera at a set cycle, calculating the ratio of the iris and pupil size from the photographed iris image, the calculation result iris
- a living eye identification method comprising the step of judging the living eye when the ratio of the pupil size is changed.
- Another technical solution of the present invention is to shoot the iris while turning on or off the IR LED light installed on the front or one side of the iris recognition camera at a set cycle, and the IR LED reflected in the iris and / or pupil from the photographed iris image
- the present invention provides a method for recognizing a living eye, comprising: recognizing and determining a change in the number or position of IR LEDs reflected on an iris and / or a pupil, and determining the living eye.
- Another technical solution of the present invention is to shoot an iris while inducing eye blink to a user using an external signal generator including a guide LED (indicator LED) and / or a voice guide for generating a guide sound installed on the front of the camera And a step of calculating a change in the iris region of the photographed iris image, and determining a living eye when there is a change in the iris region as a result of the calculation.
- an external signal generator including a guide LED (indicator LED) and / or a voice guide for generating a guide sound installed on the front of the camera
- Another technical solution of the present invention is to shoot the iris while guiding the user to guide the movement of the gaze direction using an external signal generator, such as a guide LED and / or voice guide installed or built in one side of the camera, and shooting Comprising a step of calculating the change in the direction of gaze from the image of the iris, and if there is a change in the gaze direction as a result of the calculation to provide a living eye identification method comprising the step.
- an external signal generator such as a guide LED and / or voice guide installed or built in one side of the camera
- Another technical solution of the present invention is to photograph the iris while on / off the illumination installed on the front or one side of the camera at a predetermined cycle, calculating the ratio of the iris and pupil size from the photographed iris image, the calculation result iris Judging by the living eye when there is a change in the pupil size ratio, photographing the iris by turning the IR LED light ON / OFF at a predetermined cycle, and iris and / or from the photographed iris image.
- the IR LED reflected on the pupil Recognizing the IR LED reflected on the pupil, and checking whether the eyes are alive using a change in the number or position of the IR LED reflected on the iris and / or the external, such as a guide LED and / or guide sound generator Capturing an iris while inducing a blink of an eye using a signal generator, and calculating a change in the iris region of the photographed iris image
- the step of judging by the living eye, and using an external signal generating device such as a guide LED and / or a guide sound generator to photograph the iris while inducing the user to move the gaze direction
- a step of calculating a change in gaze point from the photographed iris image and determining a living eye when there is a change in gaze point.
- Another technical solution of the present invention is a camera lens for acquiring an iris image to obtain an iris image, and is installed on the front side or one side of the iris recognition camera and turned on or at a set cycle to change the size of the pupil by changing the illuminance of the surroundings. It consists of an illumination configured to turn off and an IR LED light installed on the front or one side of the iris recognition camera and configured to turn on or off at an interval set so that an IR LED is formed on the iris and / or pupil, using an iris image taken by the iris recognition camera.
- Means to determine whether the ratio of the iris and pupil size changes due to the change in ambient illuminance or the number or position of the IR LEDs on the iris and / or pupil is determined to determine whether the iris is alive or by means of an iris recognition camera. Iris image by changing ambient light using iris image By using an iris, the camera having a ball size ratio change and whether the iris and / or pupil temperature may cause problems: means for determining whether the number of changes and position changes of the IR LED at the same time in the living eye to provide an identification device.
- Another technical solution of the present invention includes an external signal generating device such as a guidance LED and / or a voice guide for determining whether the iris area is changed by eye blink and the iris is changed by gaze direction in a conventional iris recognition camera.
- an external signal generating device such as a guidance LED and / or a voice guide for determining whether the iris area is changed by eye blink and the iris is changed by gaze direction in a conventional iris recognition camera.
- Another technical solution of the present invention is to shoot the iris with the iris recognition camera while supplying a pulse having a regular or irregular period as a signal input to drive the IR LED light installed on the front of the iris recognition camera, It is to provide a living eye identification device for determining whether the IR LED calculated from the image is the iris of the living eye by comparing the period of the iris image reflected in the iris and / or pupil and the period of the pulse input to the IR LED illumination.
- the present invention is to change the ambient illuminance using the illumination installed on the front or one side of the camera, and whether the ratio of the iris and pupil size changes due to the change in the ambient illuminance, and whether the number or position of the IR LEDs formed on the iris and / or pupil is changed and By using one or more of whether or not the change in the iris region and the gaze direction change due to the blinking of the eye, there is an advantageous effect that can accurately determine whether or not the fake eye.
- Another effect of the present invention is a signal for driving an IR LED light used as an illumination for iris image shooting or to make an iris image reflected IR LED in the iris and / or pupil with a regular or irregular period While taking an iris image while supplying a pulse, it compares the period of the pulse supplied to the IR LED light with the period of the IR LED reflected from the iris image and / or the pupil reflected. It is to increase the iris identification rate of living eyes.
- FIG. 1 is a front view of a camera according to one embodiment of an iris recognition camera according to the present invention.
- Figure 3 is a change in the pupil size according to the change in ambient illumination according to the present invention.
- FIG. 4 is a front view of the camera according to another embodiment of the iris recognition camera according to the present invention.
- FIG. 5 is an image of the iris image is reflected by the IR LED light reflected in the pupil and it is shown that the iris of the living eye can be determined by varying the position where the IR LED is reflected and the number of reflected light.
- FIG. 6 shows waveforms of pulses with regular periods as signals for operating IR LED illumination.
- FIG. 7 illustrates waveforms of pulses with irregular periods as signals for operating IR LED illumination.
- Figure 9 shows the waveform of each pulse with an irregular period as a signal for operating two IR LED lights.
- 10 is a picture of the change in the size of the iris region for eye blink.
- FIG. 11 shows changes in the iris area of the live and forged eyes against eye blinking.
- FIG. 13 is a front view of the camera according to another embodiment of the iris recognition camera according to the present invention.
- Best mode for carrying out the present invention is the step of photographing the iris while on / off at a predetermined period of the illumination installed on the front or one side of the iris recognition camera, calculating the ratio of the iris and pupil size from the photographed iris image, It is to provide a live eye identification method comprising the step of judging as a living eye when the ratio of the iris and pupil size changes as a result of the calculation.
- Another best mode for carrying out the present invention is to photograph an iris while turning on or off an IR LED light installed at the front or one side of an iris recognition camera at a set cycle, and reflected from the photographed iris image to the iris and / or pupil.
- the present invention provides a method for identifying a living eye, comprising: recognizing an IR LED, and determining a change in the number or position of the IR LEDs reflected on the iris and / or the pupil and determining the living LED.
- the technical configuration used to determine whether the iris of the living eye in the present invention uses that the pupil shrinks or enlarges as the brightness of the surrounding changes, so that the ratio of the pupil and iris size changes.
- the eye is a curved surface, it is made of a material that reflects light, and the physical movement of the eye and the eyes around the eye, such as the blink of the eye, the change in the gaze direction ( gaze) is used to determine whether the eye is alive.
- the pupil shrinks or enlarges according to the brightness of the surrounding, and the ratio of the pupil and iris size changes, but the printed iris image, the iris image photograph, and the eye model do not contract or enlarge the pupil even when the surrounding brightness changes. Do not.
- the illumination is turned on / off (ON / OFF) to enlarge or contract the pupil, and at this time, the iris is alive when the ratio changes by calculating the change in the pupil and iris size ratio, and the imitation iris when not changed. It is configured to judge.
- the present invention provides a change in the ratio of pupil and iris size using visible light, a change in the number or position of reflected IR LEDs formed on the iris and / or pupil using IR LED illumination, and guidance guided by a guidance LED and / or a voice guide. Calculates whether the iris area is changed in the captured iris image by inducing eye blink using an external signal such as sound, or the gaze point while inducing the user to move the gaze direction when the iris is taken. It is configured to determine whether the iris is alive using at least one of the means for calculating the change in. Look at the embodiment according to the present invention.
- Figure 1 shows the shape of the front of the iris recognition camera (11 of Figure 1) that can identify the living eye according to the present invention, one side of the front illumination (13 of Figure 1) and IR LED ( Figure 1 14) is installed.
- the iris recognition camera (11 in FIG. 1) capable of recognizing the living eye according to the present invention is required to determine whether the iris of the living eye in front of the camera used for normal iris recognition (FIG. 13) and an IR LED (FIG. 14) are further installed.
- an external signal generator such as a guide LED and / or a voice guide for generating a guide sound may be additionally installed if necessary.
- FIG. 2 is a view for explaining the size of the pupil is reduced or enlarged by turning on or off the illumination (Fig. 13) to the iris recognition camera (11 in Fig. 1) installed in Fig.
- the photographed iris image on the left side can easily know that the diameter of the pupil is larger than the diameter of the pupil in the right iris image photographed with the illumination on.
- the iris recognition camera turns on / off the illumination installed on the front of the camera at a set period during the iris shooting to change the brightness of the surroundings and the size of the pupil according to the change of the brightness of the surroundings. Different.
- the outer diameter of the iris is hardly changed by illumination, but the outer diameter of the pupil is greatly changed.
- a clear iris image may be selected from the photographed iris images and used for iris recognition in order to determine whether the user is a living eye.
- the IR LED light is reflected on the iris and the pupil and the reflected portion appears to be photographed in white.
- the IR LED light is not reflected. This can be used to determine whether the iris or imitation of the living eye.
- Figure 4 shows another embodiment of the iris recognition camera according to the present invention, two IR LED lights are installed in front of the iris recognition camera.
- FIG. 5 is an iris image obtained by photographing an iris while ON / OFF of an IR LED light is set at a predetermined cycle, and photographs a shape in which one or two IR LEDs reflected on the iris and / or pupil are shown.
- Figure 6 shows the waveform of a pulse having a regular period as a signal for operating the IR LED light installed on the front of the iris recognition camera according to the present invention.
- FIG. 7 illustrates waveforms of pulses with irregular periods as signals for operating IR LED illumination.
- Figure 9 shows the waveform of each pulse with an irregular period as a signal for operating two IR LED lights.
- a typical iris recognition camera can capture and acquire an iris image of 20 to 60 frames per second, and is configured to measure the duration of the reflected IR LED appearing in the iris image obtained at the time of shooting.
- the period of the pulse signal for operating the IR LED light is compared with the image period reflected by the IR LED measured from the iris image frame to determine whether the iris and / or forged iris of the living eye are Or compare the on time or off time of the pulse signal supplied to the IR LED illumination with the duration of the image where the IR LED is reflected in the iris and / or pupil from the captured iris image frame and the duration of the non-IR LED reflected image. If so, it may include a means for judging the iris of the living eye if the same, and if the iris forged if different.
- the time for turning on / off the IR LED light by supplying the pulse signal shown in FIGS. 6 to 9 and the duration of the IR LED light reflected from the captured iris image frame are compared with each other, It may include a means for judging that the iris and judged as a forged iris image if it does not match.
- the pulse signal for each LED can be compared with the duration of each IR LED light to increase the discrimination of whether the eyes are alive.
- the time to turn on the IR LED light can be formed longer or shorter than one frame of the iris camera that captures the iris for iris recognition when driving the IR LED light, it is advantageous to determine whether the long form is the iris of the living eye. Do.
- 10 is a picture of the change in the size of the iris region by eye blink.
- the iris is photographed while guiding the user to blink his eyes for a set period by installing an external LED generator or an external signal generator including a voice guide that generates a guide sound when the iris image is taken.
- the guide LED blinks to induce the user to blink.
- the size of the iris image area is changed when the photographer blinks the eye and the iris image area is calculated. To check.
- the photographed iris image region changes, it is judged as the iris of the living eye, and if it is not changed, it is judged as a fake iris.
- the iris recognition means and step is judged whether the iris of the living eye is a living iris, to determine whether it is a live iris selected from the iris images photographed iris image containing a lot of iris information is used for iris recognition Can be configured to
- 11 is a graphical representation of changes in the iris area of the living and forged eyes against eye blinking.
- FIG. 11 it can be seen that the iris area is clearly changed between 1 and 0 when the eye blinks for a predetermined time in the case of a living eye.
- Figure 13 shows another embodiment of the iris recognition camera according to the present invention, IR LED lights and two guide LEDs are installed on the front of the iris recognition camera.
- the direction of gaze is indicated by blinking guide LEDs installed on left and right sides. That is, the left guide LED blinks to induce the gaze direction to the left side or the right guide LED blinks to induce the gaze direction to the right side.
- the iris of the living eye can be checked.
- the user may move the gaze direction (a line of sight) according to the guide sound of the voice guide to photograph the iris, and the gaze point is changed based on the photographed iris image.
- the gaze direction may be directed to move in the front and up / down / left / right directions, and thus the gaze direction may be changed.
- the gaze may be induced to move only in some of the front and up / down / left / right directions. You can also check the change in direction.
- the control of the external signal generator such as the illumination, IR LED illumination, guidance LED and voice guide is made by a control program designed and manufactured according to the present invention, the control program is mounted in a memory built into the controller of the iris recognition camera have.
- Table 1 briefly summarizes the means and steps for determining the iris and imitation iris of the living eye according to the present invention.
- the living eye identification method comprises the steps of photographing the iris while ON / OFF (ON / OFF) the illumination installed on the front or one side of the iris recognition camera, and calculating the ratio of the iris and pupil size from the photographed iris image And a step of judging by the living eye when the ratio of the iris and the pupil size is changed.
- Another embodiment of the method for identifying a living eye includes the steps of photographing the iris while ON / OFF the IR LED light installed at the front or one side of the iris recognition camera at a set cycle, and from the photographed iris image And / or recognizing the IR LED reflected in the pupil, and determining the change in the number or position of the IR LED reflected in the iris and / or pupil and determining it as a living eye.
- Another embodiment of the present invention is to shoot the iris while inducing eye blink to the user by using an external signal generator, such as a guide LED or a voice guide that generates a guide sound installed on the front or one side of the camera, the photographed iris image Computing a change in the iris area of the, and if there is a change in the iris area of the calculation may include the step of determining with a living eye.
- an external signal generator such as a guide LED or a voice guide that generates a guide sound installed on the front or one side of the camera
- Another embodiment of the present invention is the step of photographing the iris while inducing the movement of the gaze direction (eyes) to the user, calculating the change of gaze point from the photographed iris image, and the result of gaze If there is a change in the direction (Gaze Point) may include determining the living eyes.
- the method may include recognizing the IR LED reflected on the pupil, and determining the change in the number or position of the IR LED reflected on the iris or the pupil and determining it as a living eye.
- Another embodiment of the present invention is the step of photographing the iris while ON / OFF (ON / OFF) the illumination installed on the front or one side of the camera, a step of calculating the ratio of the iris and pupil size from the photographed iris image and Judging by the living eye when the ratio between the iris and pupil size is changed, and photographing the iris while inducing eye blink to the user using an external signal generator such as a guidance LED and / or a voice guide that generates a guide sound. And calculating a change in the iris region in the photographed iris image, and determining the living eye when there is a change in the iris region.
- Another embodiment of the present invention is the step of photographing the iris while ON / OFF (ON / OFF) the illumination installed on the front or one side of the camera, a step of calculating the ratio of the iris and pupil size from the photographed iris image and When the ratio of the iris and the pupil size is changed, judging by the living eye, and using an external signal generating device such as a guide LED and / or a voice guide that generates a guide sound, the iris is taken while inducing the user to move in the gaze direction. And calculating a change in gaze point from the photographed iris image, and determining that the eyes are alive when there is a change in gaze point.
- Another embodiment of the present invention is the step of photographing the iris while ON / OFF (ON / OFF) the IR LED light installed on the front or one side of the camera at a predetermined period, and IR reflected from the photographed iris image to the iris and / or pupil Recognizing the LED, counting the change in the number or position of the IR LEDs reflected on the iris and / or pupil, judging by the living eye, and generating an external signal such as a voice guide that generates guide LEDs and / or guide sounds Photographing the iris while inducing a blink of an eye by using the device, calculating a change in the iris region of the photographed iris image, and determining that the eye is alive when it is determined that there is a change in the iris region It may include the step.
- Another embodiment of the present invention is the step of photographing the iris while ON / OFF (ON / OFF) the IR LED light installed on the front or one side of the camera at a predetermined period, and IR reflected from the photographed iris image to the iris and / or pupil Recognizing the LED, counting the change in the number or position of the IR LED reflected on the iris or the pupil and judging by the living eye, and an external signal generating device such as a voice guide for generating the guidance LED and / or guide sound Photographing the iris while inducing the user to move the gaze direction; calculating a change in gaze point from the photographed iris image; and if there is a change in gaze point as a result of the calculation May include the step of judging by the living eye.
- an external signal generator such as a guide LED and / or a voice guide that generates a guide sound
- photographing the iris while inducing eye blink to the user and the iris region of the photographed iris image.
- Calculating the change judging by the living eye if there is a change in the iris area, and using an external signal generator such as a guidance LED and / or a voice guide to generate a guide sound.
- Photographing the iris while inducing a motion calculating a change in gaze point from the photographed iris image, and determining a living eye when there is a change in gaze point as a result of the calculation It may include.
- Another embodiment of the present invention is the step of photographing the iris while ON / OFF (ON / OFF) the illumination installed on the front or one side of the camera, a step of calculating the ratio of the iris and pupil size from the photographed iris image and Judging by the living eye when the ratio of the iris and pupil size is changed, photographing the iris by turning on / off the IR LED light installed on the front or one side of the camera at a set cycle, and photographing the iris image Recognizing IR LEDs reflected from the iris and / or pupils from the iris; calculating a change in the number or position of the IR LEDs reflected from the irises and / or pupils; Capturing the iris while inducing eye blinking by using an external signal generator such as a sound generator, and changing the iris area of the photographed iris image. Under it may include a step of determining as a living eye when there is a change in phase, and a calculation result of the iris region.
- Another embodiment of the present invention is the step of photographing the iris while ON / OFF (ON / OFF) the illumination installed on the front or one side of the camera, a step of calculating the ratio of the iris and pupil size from the photographed iris image and Judging by the living eye when the ratio of the iris and pupil size is changed, photographing the iris by turning on / off the IR LED light installed on the front or one side of the camera at a set cycle, and photographing the iris image Recognizing IR LEDs reflected from the iris and / or pupils from the iris; calculating a change in the number or position of the IR LEDs reflected from the irises and / or pupils; Photographing the iris while inducing movement of the gaze direction to the user using an external signal generator such as a sound generator, and gazing room from the photographed iris image. If there is a change in the phase with calculations gaze direction (Gaze Point) to calculate a change (Gaze Point) may comprise determining a living eye on.
- Another embodiment of the present invention is the step of photographing the iris while ON / OFF (ON / OFF) the illumination installed on the front or one side of the camera, a step of calculating the ratio of the iris and pupil size from the photographed iris image and Judging by the living eye when the ratio of the iris to the pupil size is changed, photographing the iris while inducing eye blink to the user using the guidance LED and / or the sound generator, and the iris region of the photographed iris image Calculating the change of the light source, determining that the eyes are alive when there is a change in the iris area, and inducing the movement of the gaze direction to the user by using an external signal generator such as a guide LED and / or a guide sound generator.
- Taking an iris while calculating a change in gaze point from the captured iris image It may comprise determining a living eye when there is a change in direction (Gaze Point).
- Another embodiment of the present invention is the step of photographing the iris while ON / OFF (ON / OFF) the IR LED light installed on the front or one side of the camera at a predetermined period, and IR reflected from the photographed iris image to the iris and / or pupil Recognizing the LED, counting the change in the number or position of the IR LED reflected on the iris and / or pupil and judging by the living eye, and using an external signal generator such as a guide LED and / or a sound generator Photographing the iris while inducing eye blink to the user, calculating a change in the iris region of the photographed iris image, judging by the living eye if there is a change in the iris region as a result of the calculation, a guide LED and And / or photographing the iris using an external signal generator such as a guide sound generator while inducing a user to move in the gaze direction. From it may comprise determining as a living eye when there is a change in phase, and a calculation result gaze direction (
- Another embodiment of the present invention is the step of photographing the iris while ON / OFF (ON / OFF) the illumination installed on the front or one side of the camera, a step of calculating the ratio of the iris and pupil size from the photographed iris image and Judging by the living eye when the ratio of the iris and pupil size is changed, photographing the iris by turning on / off the IR LED light installed on the front or one side of the camera at a set cycle, and photographing the iris image Recognizing IR LEDs reflected from the iris and / or pupils from the iris; calculating a change in the number or position of the IR LEDs reflected from the irises and / or pupils; Capturing the iris while inducing a blink of an eye using an external signal generator such as a sound generator, and changing the iris area of the photographed iris image.
- an external signal generator such as a sound generator
- the eyes are judged as a living eye, and an external signal generator such as guide LED and / or guide sound generator is used to guide the user in the gaze direction while photographing the iris. And calculating a change in gaze point from the photographed iris image, and determining that the eyes are alive when there is a change in gaze point.
- an external signal generator such as guide LED and / or guide sound generator
- Another embodiment of the present invention may be made by recognizing the change in the number of IR LEDs reflected in the iris and the pupil is repeatedly confirmed that the number of IR LEDs reflected in the iris and pupil from the iris image frame.
- the recognition of the change in the number of IR LEDs reflected on the iris and the pupil is synchronized with a period in which the number of IR LEDs reflected on the iris and the pupil from the iris image frame is set to turn on or off the IR LED illumination. This can be done by checking if it changes.
- Another embodiment of the present invention is to recognize whether the position change of the IR LED reflected in the iris and the pupil is changed from the iris image frame to the position of the IR LED reflected in the iris and the pupil repeatedly left or right or left and right It can be done by.
- the recognition of the change of the position of the IR LED reflected by the iris and the pupil is turned on or off at the left, right, or left and right sides of the position of the IR LED reflected by the iris and the pupil from the iris image frame. This can be done by confirming that they appear in synchronization with the set period.
- the present invention is to install the IR LED light and the illumination to give a change in ambient illuminance on the front or one side of the iris recognition camera to determine whether the iris of the living eye when shooting with the iris recognition camera, the iris and pupil size
- the iris of the living eye using one or more of a ratio change, a change in the number or position of IR LEDs on the iris and / or pupil, a change in the iris image area due to a blinking eye, and a change in the gaze direction. It is highly industrially available because it provides a live eye identification method and apparatus for judging perception to prevent forgery.
Abstract
Description
방법1 | 동공홍채비율 | |||
방법2 | IR LED 반사 | |||
방법3 | 눈 깜박임 | |||
방법4 | 응시방향 | |||
방법5 | 동공홍채비율 | IR LED 반사 | ||
방법6 | 동공홍채비율 | 눈 깜박임 | ||
방법7 | 동공홍채비율 | 응시방향 | ||
방법8 | IR LED 반사 | 눈 깜박임 | ||
방법9 | IR LED 반사 | 응시방향 | ||
방법10 | 눈 깜박임 | 응시방향 | ||
방법11 | 동공홍채비율 | IR LED 반사 | 눈 깜박임 | |
방법12 | 동공홍채비율 | IR LED 반사 | 응시방향 | |
방법13 | 동공홍채비율 | 눈 깜박임 | 응시방향 | |
방법14 | IR LED 반사 | 눈 깜박임 | 응시방향 | |
방법15 | 동공홍채비율 | IR LED 반사 | 눈 깜박임 | 응시방향 |
Claims (30)
- 살아있는 눈 식별방법에 있어서,홍채인식카메라에 설치된 조명을 설정된 주기로 온 또는 오프하면서 홍채를 촬영하는 단계;촬영된 홍채이미지로부터 홍채와 동공 크기의 비율을 계산하는 단계; 및홍채와 동공 크기의 비율이 변화되었을 때 살아있는 눈으로 판단하는 단계를 포함하는 살아있는 눈 식별방법.
- 살아있는 눈 식별방법에 있어서,홍채인식카메라에 설치된 IR LED 조명을 설정된 주기로 온 또는 오프하면서 홍채를 촬영하는 단계;촬영된 홍채이미지로부터 홍채 또는 동공에 반사된 IR LED를 인식하는 단계; 및홍채 또는 동공에 반사된 IR LED의 개수 변화 또는 위치 변화를 인식하여 살아있는 눈인지 여부를 판단하는 단계를 포함하는 살아있는 눈 식별방법.
- 살아있는 눈 식별방법에 있어서,홍채인식카메라에 설치된 안내 LED 또는 음성안내기를 이용하여 사용자에게 눈 깜박임을 유도하면서 홍채를 촬영하는 단계;촬영된 홍채이미지의 홍채 영역의 변화를 계산하는 단계; 및홍채 영역의 변화가 있을 경우에 살아있는 눈으로 판단하는 단계를 포함하는 살아있는 눈 식별방법.
- 살아있는 눈 식별방법에 있어서,홍채인식카메라에 설치되거나 내장된 안내 LED 또는 음성안내기를 사용하여 사용자에게 응시방향의 움직임을 유도하면서 홍채를 촬영하는 단계;촬영된 홍채이미지로부터 응시방향의 변화를 계산하는 단계; 및응시방향의 변화가 있을 경우에 살아있는 눈으로 판단하는 단계를 포함하는 살아있는 눈 식별방법.
- 청구항 1에 있어서,상기 살아있는 눈 식별방법은홍채인식카메라에 설치된 IR LED 조명을 설정된 주기로 온 또는 오프하면서 홍채를 촬영하는 단계;촬영된 홍채이미지로부터 홍채 또는 동공에 반사된 IR LED를 인식하는 단계; 및홍채 또는 동공에 반사된 IR LED의 개수 변화 또는 위치 변화를 인식하여 살아있는 눈인지 여부를 판단하는 단계를 더 포함하는 살아있는 눈 식별방법.
- 청구항 1에 있어서,상기 살아있는 눈 식별방법은홍채인식카메라에 설치된 안내 LED 또는 음성안내기를 포함하는 외부 신호 발생 장치를 사용하여 사용자에게 눈 깜박임을 유도하면서 홍채를 촬영하는 단계;촬영된 홍채이미지의 홍채 영역의 변화를 계산하는 단계; 및홍채 영역의 변화가 있을 경우에 살아있는 눈으로 판단하는 단계를 더 포함하는 살아있는 눈 식별방법.
- 청구항 1에 있어서,상기 살아있는 눈 식별방법은홍채인식카메라에 설치되거나 내장된 안내 LED 또는 음성안내기를 포함하는 외부 신호 발생 장치를 사용하여 사용자에게 응시방향의 움직임을 유도하면서 홍채를 촬영하는 단계;촬영된 홍채이미지로부터 응시방향의 변화를 계산하는 단계; 및응시방향의 변화가 있을 경우에 살아있는 눈으로 판단하는 단계를 더 포함하는 살아있는 눈 식별방법.
- 청구항 2에 있어서,상기 살아있는 눈 식별방법은홍채인식카메라에 설치된 안내 LED 또는 음성안내기를 포함하는 외부 신호 발생 장치를 사용하여 사용자에게 눈 깜박임을 유도하면서 홍채를 촬영하는 단계;촬영된 홍채이미지의 홍채 영역의 변화를 계산하는 단계; 및홍채 영역의 변화가 있을 경우에 살아있는 눈으로 판단하는 단계를 더 포함하는 살아있는 눈 식별방법.
- 청구항 2에 있어서,상기 살아있는 눈 식별방법은홍채인식카메라에 설치되거나 내장된 안내 LED 또는 음성안내기를 포함하는 외부 신호 발생 장치를 사용하여 사용자에게 응시방향의 움직임을 유도하면서 홍채를 촬영하는 단계;촬영된 홍채이미지로부터 응시방향의 변화를 계산하는 단계; 및응시방향의 변화가 있을 경우에 살아있는 눈으로 판단하는 단계를 더 포함하는 살아있는 눈 식별방법.
- 청구항 3에 있어서,상기 살아있는 눈 식별방법은홍채인식카메라에 설치되거나 내장된 안내 LED 또는 음성안내기를 포함하는 외부 신호 발생 장치를 사용하여 사용자에게 응시방향의 움직임을 유도하면서 홍채를 촬영하는 단계;촬영된 홍채이미지로부터 응시방향의 변화를 계산하는 단계; 및응시방향의 변화가 있을 경우에 살아있는 눈으로 판단하는 단계를 더 포함하는 살아있는 눈 식별방법.
- 청구항 5에 있어서,상기 살아있는 눈 식별방법은홍채인식카메라에 설치된 안내 LED 또는 음성안내기를 포함하는 외부 신호 발생 장치를 사용하여 사용자에게 눈 깜박임을 유도하면서 홍채를 촬영하는 단계;촬영된 홍채이미지의 홍채 영역의 변화를 계산하는 단계; 및홍채 영역의 변화가 있을 경우에 살아있는 눈으로 판단하는 단계를 더 포함하는 살아있는 눈 식별방법.
- 청구항 5에 있어서,상기 살아있는 눈 식별방법은홍채인식카메라에 설치되거나 내장된 안내 LED 또는 음성안내기를 포함하는 외부 신호 발생 장치를 사용하여 사용자에게 응시방향의 움직임을 유도하면서 홍채를 촬영하는 단계;촬영된 홍채이미지로부터 응시방향의 변화를 계산하는 단계; 및응시방향의 변화가 있을 경우에 살아있는 눈으로 판단하는 단계를 더 포함하는 살아있는 눈 식별방법.
- 청구항 6에 있어서,상기 살아있는 눈 식별방법은홍채인식카메라에 설치되거나 내장된 안내 LED 또는 음성안내기를 포함하는 외부 신호 발생 장치를 사용하여 사용자에게 응시방향의 움직임을 유도하면서 홍채를 촬영하는 단계;촬영된 홍채이미지로부터 응시방향의 변화를 계산하는 단계; 및응시방향의 변화가 있을 경우에 살아있는 눈으로 판단하는 단계를 더 포함하는 살아있는 눈 식별방법.
- 청구항 8에 있어서,상기 살아있는 눈 식별방법은홍채인식카메라에 설치되거나 내장된 안내 LED 또는 음성안내기를 포함하는 외부 신호 발생 장치를 사용하여 사용자에게 응시방향의 움직임을 유도하면서 홍채를 촬영하는 단계;촬영된 홍채이미지로부터 응시방향의 변화를 계산하는 단계; 및응시방향의 변화가 있을 경우에 살아있는 눈으로 판단하는 단계를 더 포함하는 살아있는 눈 식별방법.
- 청구항 11에 있어서,상기 살아있는 눈 식별방법은홍채인식카메라에 설치되거나 내장된 안내 LED 또는 음성안내기를 포함하는 외부 신호 발생 장치를 사용하여 사용자에게 응시방향의 움직임을 유도하면서 홍채를 촬영하는 단계;촬영된 홍채이미지로부터 응시방향의 변화를 계산하는 단계; 및응시방향의 변화가 있을 경우에 살아있는 눈으로 판단하는 단계를 더 포함하는 살아있는 눈 식별방법.
- 청구항 2, 청구항 5, 청구항 8, 청구항 9, 청구항 11, 청구항 12, 청구항 14 및 청구항 15 중 어느 한 항에 있어서,상기 살아있는 눈 식별방법은 홍채 및 동공에 반사된 IR LED의 개수 변화의 인식이 홍채이미지 프레임으로부터 홍채 및 동공에 반사된 IR LED의 개수가 반복적으로 바뀌는지를 확인함에 의하여 이루어짐을 특징으로 하는 살아있는 눈 식별 방법.
- 청구항 2, 청구항 5, 청구항 8, 청구항 9, 청구항 11, 청구항 12, 청구항 14 및 청구항 15 중 어느 한 항에 있어서,상기 살아있는 눈 식별방법은 홍채 및 동공에 반사된 IR LED의 개수 변화의 인식이 홍채이미지 프레임으로부터 홍채 및 동공에 반사된 IR LED의 개수가 IR LED 조명이 온 또는 오프하도록 설정된 주기와 동기화되어 바뀌는지를 확인함에 의하여 이루어짐을 특징으로 하는 살아있는 눈 식별 방법.
- 청구항 2, 청구항 5, 청구항 8, 청구항 9, 청구항 11, 청구항 12, 청구항 14 및 청구항 15 중 어느 한 항에 있어서,상기 살아있는 눈 식별방법은 홍채 및 동공에 반사된 IR LED의 위치 변화의 인식이 홍채이미지 프레임으로부터 홍채 및 동공에 반사된 IR LED의 위치가 좌 또는 우 또는 좌우 양쪽이 반복적으로 바뀌는지를 확인함에 의하여 이루어짐을 특징으로 하는 살아있는 눈 식별 방법.
- 청구항 2, 청구항 5, 청구항 8, 청구항 9, 청구항 11, 청구항 12, 청구항 14 및 청구항 15 중 어느 한 항에 있어서,상기 살아있는 눈 식별방법은 홍채 및 동공에 반사된 IR LED 위치 변화의 인식이 홍채이미지 프레임으로부터 홍채 및 동공에 반사된 IR LED의 위치가 좌 또는 우 또는 좌우 양쪽에 IR LED 조명이 온 또는 오프하도록 설정된 주기와 동기화되어 나타나는지를 확인함에 의하여 이루어짐을 특징으로 하는 살아있는 눈 식별 방법.
- 청구항 2, 청구항 5, 청구항 8, 청구항 9, 청구항 11, 청구항 12, 청구항 14 및 청구항 15 중 어느 한 항에 있어서,상기 살아있는 홍채식별방법은 IR LED 조명을 구동하기 위한 신호로 규칙적인 주기 또는 불규칙한 주기를 가진 펄스를 공급함을 특징으로 하는 살아있는 눈 식별방법.
- 청구항 20에 있어서,상기 살아있는 홍채식별방법은 IR LED 조명을 동작시키기 위한 펄스신호의 주기와 홍채이미지 프레임으로부터 홍채 및 동공에 IR LED가 반사된 이미지 주기를 비교하여 살아있는 눈의 홍채 여부를 판단하거나 IR LED 조명에 공급되는 펄스신호의 온 시간과 촬영된 홍채이미지 프레임으로부터 측정된 IR LED의 온 시간과 서로 비교하여 동일할 경우에 살아있는 눈의 홍채로 판단함을 특징으로 하는 살아있는 눈 식별방법.
- 홍채인식카메라를 이용한 살아있는 눈 식별장치에 있어서,홍채이미지를 받아들이기 위한 카메라 렌즈;홍채인식카메라 설치되어 주위의 조도를 변경하여 동공의 크기를 변화시키기 위하여 설정된 주기로 온 또는 오프하기 위한 조명; 및홍채인식카메라 설치되어 홍채 또는 동공에 반사된 IR LED가 맺히도록 설정된 주기로 온 또는 오프하기 위한 IR LED 조명으로 구성하되,홍채인식카메라로 촬영한 홍채이미지를 이용하여 주위조도 변화에 의한 홍채와 동공 크기의 비율 변화 여부, 또는 홍채 및 동공에 반사된 IR LED의 개수 변화 또는 위치 변화 여부를 인식하여 살아있는 눈의 홍채인지 여부를 판단하는 수단을 구비하거나,홍채인식카메라로 촬영한 홍채이미지를 이용하여 주위조도 변화에 의한 홍채와 동공 크기의 비율 변화와 홍채 및 동공에 반사된 IR LED의 개수 변화 또는 위치변화 여부를 동시에 사용하여 살아있는 눈의 홍채인지 여부를 판단하는 수단을 구비한 살아있는 눈 식별장치.
- 청구항 22에 있어서,살아있는 눈 식별장치는 눈 깜박임에 의한 홍채영역 변화와 응시방향 변화에 의한 살아있는 눈의 홍채인지 여부를 판단하기 위한 안내 LED 또는 음성안내기로 구성된 외부 신호 발생 장치를 더 구비한 살아있는 눈 식별장치.
- 청구항 22 또는 청구항 23에 있어서,살아있는 눈 식별장치는 홍채이미지 프레임으로부터 홍채 및 동공에 반사된 IR LED의 개수가 반복적으로 바뀌는지를 확인함으로써 홍채 및 동공에 반사된 IR LED의 개수 변화를 인식하는 것을 특징으로 하는 살아있는 눈 식별 장치.
- 청구항 22 또는 청구항 23에 있어서,살아있는 눈 식별장치는 홍채이미지 프레임으로부터 홍채 및 동공에 반사된 IR LED의 개수가 IR LED 조명이 온 또는 오프되도록 설정된 주기와 동기화되어 바뀌는지를 확인함으로써 홍채 및 동공에 반사된 IR LED의 개수 변화를 인식하는 것을 특징으로 하는 살아있는 눈 식별 장치.
- 청구항 22 또는 청구항 23에 있어서,살아있는 눈 식별장치는 홍채이미지 프레임으로부터 홍채 및 동공에 반사된 IR LED의 위치가 좌 또는 우 또는 좌우 양쪽이 반복적으로 바뀌는지를 확인함으로써 홍채 및 동공에 반사된 IR LED의 위치 변화를 인식하는 것을 특징으로 하는 살아있는 눈 식별 장치.
- 청구항 22 또는 청구항 23에 있어서,살아있는 눈 식별장치는 홍채이미지 프레임으로부터 홍채 및 동공에 반사된 IR LED의 위치가 좌 또는 우 또는 좌우 양쪽에 IR LED 조명이 온 또는 오프 되도록 설정된 주기와 동기화되어 나타나는지를 확인함으로써 홍채 및 동공에 반사된 IR LED의 위치 변화를 인식하는 것을 특징으로 하는 살아있는 눈 식별 장치.
- 청구항 22 또는 청구항 23에 있어서,상기 살아있는 눈 식별장치는 IR LED 조명을 구동하기 위한 신호로 규칙적인 주기 또는 불규칙한 주기를 가진 펄스를 공급함을 특징으로 하는 살아있는 눈 식별장치.
- 청구항 28에 있어서,살아있는 눈 식별장치는 IR LED 조명을 동작시키기 위한 펄스신호의 주기와 홍채이미지 프레임으로부터 홍채 및 동공에 반사된 IR LED의 주기를 비교하여 살아있는 홍채 여부를 판단하거나 IR LED 조명에 공급되는 펄스신호의 온 시간과 촬영된 홍채이미지 프레임으로부터 측정된 IR LED의 온 시간과 서로 비교하여 동일할 경우에 살아있는 눈의 홍채로 판단함을 특징으로 하는 살아있는 눈 식별장치.
- 청구항 28에 있어서,상기 살아있는 눈 식별장치는 IR LED 조명을 온하기 위한 펄스의 주기가 홍채인식카메라로 촬영한 홍채이미지 프레임보다 길게 형성함을 특징으로 하는 살아있는 눈 식별장치.
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KR100711110B1 (ko) * | 2005-11-03 | 2007-04-27 | 연세대학교 산학협력단 | 다중 분광 영상을 융합하여 위조 홍채를 검출하는 위조홍채검출시스템 및 방법 |
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WO2016128213A1 (en) | 2015-02-11 | 2016-08-18 | Sony Corporation | Communications device, infrastructure equipment, and methods |
EP3554136A1 (en) | 2015-02-11 | 2019-10-16 | Sony Corporation | Communications device, infrastructure equipment, mobile communications network and methods |
EP3843437A1 (en) | 2015-02-11 | 2021-06-30 | Sony Corporation | Communications device, infrastructure equipment, and methods |
CN111507198A (zh) * | 2020-03-25 | 2020-08-07 | 北京万里红科技股份有限公司 | 打印虹膜检测模型的训练方法、打印虹膜检测方法及装置 |
CN111507198B (zh) * | 2020-03-25 | 2023-11-28 | 北京万里红科技有限公司 | 打印虹膜检测模型的训练方法、打印虹膜检测方法及装置 |
Also Published As
Publication number | Publication date |
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JP6147353B2 (ja) | 2017-06-14 |
CN104781830A (zh) | 2015-07-15 |
KR20140064080A (ko) | 2014-05-28 |
US20150294464A1 (en) | 2015-10-15 |
US10152792B2 (en) | 2018-12-11 |
CN104781830B (zh) | 2018-02-02 |
KR101417415B1 (ko) | 2014-07-08 |
JP2016504660A (ja) | 2016-02-12 |
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