KR20150118851A - Eyeglasses for iris recognition - Google Patents

Abstract

The present invention relates to eyeglasses for iris recognition. The eyeglasses for iris recognition comprise: lenses wherein a prism is formed on at least one among an inside, an inner side surface, an outer side surface, and an outer circumferential surface thereof; a frame which is a boundary wherein the lenses are inserted thereinto and fixed thereon, and encloses the entire lenses or a portion of the lenses, and on which a prism linked to the prism formed on the lenses is installed to form at least one imaging optical path; and eyeglass temples attached to a left and a right of the frame to hang on ears of a user. A camera which photographs an iris through the imaging optical path formed from at least one among the prism formed on the lenses and the prism installed on the frame, and a drive device which rotates the camera to a direction for forming an imaging optical path suitable for photographing the iris are embedded in the eyeglass temples or mounted on the eyeglass temples.

Description

[0001] EYEGLASSES FOR IRIS RECOGNITION [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an iris recognition eyeglass, and more particularly, to an iris recognition eyeglass which can be worn on a user's face in the form of a pair of glasses and can recognize the iris of a user while wearing glasses.

Recently, there has been an increase in the development of authentication devices and systems that use physical information of a user who is difficult to lose or forge as a system for security, crime prevention and identity authentication.

For example, there is an increasing number of authentication systems that allow or deny the user's fingerprint or recognition of the iris to authenticate the user's identity, use of a specific device, access to a specific place, or access to specific information.

Here, the iris serves as a stopper for adjusting the amount of light entering the eye as a tissue around the pupil, and the human iris has characteristics that do not change easily after completion after 18 months of age. In other words, the circular iris pattern protruding near the inner side of the iris (or the concert) hardly changes once it is determined, and the shape of the iris is different for every person.

The iris recognition system is a system for authenticating a user by digitizing a characteristic pattern of an iris in an iris image photographed by a camera using an image processing technique and comparing it with iris data of a specific user registered in advance, The recognition rate is higher than that of fingerprint recognition and it is possible to recognize more accurately.

However, a user (i.e., a person to be authenticated) who has to perform user authentication through the iris recognition system must keep a few seconds in a state in which the user does not blink after making a face approach the camera installed in the iris recognition system. There is a problem in that the user feels anxiety and rejection that the user must approach the camera of the iris recognition system although there is a slight difference depending on the shape of the recognition system (or device). This can serve as a factor for hindering the use of the iris recognition system.

In addition, the conventional iris recognition system (or apparatus) must recognize the iris of the user at a certain distance away from the contactless state. That is, since the conventional iris recognition system (or apparatus) recognizes the user's face first and then finds the eyes again on the face and adjusts the focus to recognize the iris, the system becomes complicated, the volume becomes large, There is a problem that usability is poor.

Accordingly, there is a need for an iris recognition system (or device) that allows the user to accurately recognize the iris while allowing the user to feel comfortable with the volume while minimizing anxiety or rejection.

BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Registration Practice No. 20-0303318 (registered on April 24, 2003, iris recognition apparatus).

It is an object of the present invention to provide an iris recognition eyewear which can be worn on a user's face in the form of a spectacle.

It is another object of the present invention to provide an iris recognition eyeglass which can control the light irradiated to the eye in multiple stages to adjust the size of the iris so as to recognize the size-controlled iris.

It is another object of the present invention to provide an iris recognition eyeglass that enables a user to recognize an iris of a desired portion by guiding a direction in which the eyes are directed.

According to an aspect of the present invention, there is provided an iris recognition eyewear comprising: a lens having a prism formed on at least one of an inner side, an inner side, an outer side, or an outer circumference; A frame that surrounds and partially surrounds the entire lens and has a prism installed in association with a prism formed on the lens to form at least one imaging optical path; And a camera for photographing the iris through an imaging optical path formed by at least one of a prism formed on the lens and a prism provided on the frame, And a drive device for rotating the camera in a direction for forming an imaging optical path suitable for iris photography is built in or mounted on the eyeglass leg.

In the present invention, the prism formed on the outer circumferential surface of the lens is cut in a polygonal shape on the outer circumferential surface of the lens, and each of the cut surfaces is cut in plan or curved shape inclined inward or outward, The formed lens may be a spherical lens or a flat lens.

In the present invention, the iris recognition glasses may be formed by superimposing electrically controllable transparent display elements on the outside of the lens or by coating them in a film form, and by controlling the controller, the entire display area of the transparent display element is colored with a specific color And displays the image for visual guidance at a specific position of the display area in order to guide the user's view in a desired direction and controls the brightness of the entire display area to shrink or expand the size of the iris. do.

According to another aspect of the present invention, there is provided an iris recognition eyeglass that recognizes a user's iris in a state of being worn on a user's face in the form of a spectacle, the iris recognition eyeglass comprising: a camera for photographing a front part of the iris or a desired specific part; An illumination unit for irradiating light to shrink or expand the size of the iris; A communication unit for receiving a control command for controlling the iris recognition glasses from an external device or a system and transmitting an execution result according to the control command to the external device or system; A driving unit that rotates the camera using a driving motor so that the photographing direction of the camera is directed to an imaging optical path formed so as to photograph a desired specific portion of the iris; At least one sensor for detecting at least one of information relating to a user's movement and position when wearing the iris recognition glasses and information including body temperature and pulse information of the user; And an iris pattern and an iris color in the captured iris image and storing the iris pattern and the iris color in an internal memory, or may be stored in an external security device or a user authentication system through the communication unit The iris pattern and iris color of the user stored in the internal memory are compared with the detected iris pattern and iris color to perform iris recognition by itself, And a control unit for allowing the user to use the glasses.

In the present invention, the illumination unit may be direct illumination using a light emitting element mounted inside the frame of the iris recognition glasses, or indirect illumination using a transparent display element that is overlaid on the outside of the lens of the iris recognition glasses or coated in film form Displays an image for visual guidance at a specific position of the display area in order to display the entire display area of the transparent display device with a specific color or guide the user's view in a desired direction under the control of the controller, The brightness of the entire display area is adjusted in multiple stages to shrink or expand the size of the display area.

The present invention provides an eye iris recognition system which can easily wear on a user's face without feeling irresponsiveness in the form of a bulky eyeglass, performs iris recognition after adjusting the size of the iris by controlling the light irradiated to the eye in multi- And it is an object of the present invention to provide an iris recognition eyeglass that can prevent irregular use of an iris, prevent stray / modulated irregularity, and guide a direction in which an eye is directed to recognize a desired iris.

FIGS. 1A to 1C are diagrams for explaining a shape of an iris recognition eyeglass according to an embodiment of the present invention; FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an iris recognition method and an iris recognition method, and more particularly to a method of recognizing iris using a refraction in a case where a prism is formed inside a lens or on an outer circumferential surface of a lens according to an embodiment of the present invention.
3 is a diagram illustrating an example of a configuration of major components for driving an iris recognition eyeglass according to an embodiment of the present invention;
4 is an exemplary view for explaining a configuration of iris recognition glasses for guiding a user's gaze or illuminating according to an embodiment of the present invention;
FIG. 5 is an exemplary view for explaining an image display method for guiding a user's gaze in FIG. 4; FIG.
FIG. 6 is an exemplary diagram showing the shape of an iris contracting or expanding according to an irradiation amount of light irradiated to an iris according to an embodiment of the present invention; FIG.
FIG. 7 is an exemplary view for explaining a method of rotating a camera so as to face a prism corresponding to a corresponding imaging optical path for photographing a desired portion of an iris according to an embodiment of the present invention; FIG.

Hereinafter, an embodiment of the iris recognition glasses according to the present invention will be described with reference to the accompanying drawings.

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIGS. 1A to 1C are views for explaining the shape of the iris recognition glasses according to an embodiment of the present invention. More specifically, FIG. 1A is an exemplary view for explaining a schematic outline shape of the iris recognition glasses 100 according to the present embodiment, and FIGS. 1B and 1C are diagrams for explaining the outline shape of the iris recognition glasses 100 And an imaging optical path formed between the installed camera 110 and the prism.

FIG. 2 is an exemplary view for explaining a method of recognizing an iris by using a refraction when a prism is formed on the inner side, the inner side, and the outer side of the lens or on the outer peripheral surface of the lens according to an embodiment of the present invention. Hereinafter, the external features of the iris recognition glasses according to one embodiment of the present invention will be described with reference to Figs. 1A, 1B, 1C and 2.

As shown in FIG. 1, the iris recognition glasses 100 according to the embodiment of the present invention are implemented in the form of glasses to be worn on the user's face. At this time, the outer shape (or shape) of the iris recognition glasses 100 may be changed as much as possible, but basically includes a frame (i.e., an eyeglass frame), a lens, and a glasses leg.

The frame (i.e., the spectacle frame) may be embodied as a frame that fits the lens, or it may surround the entire lens or only partially surround the lens.

The lens serves to compensate for refractive errors, to weaken strong light rays, or to absorb ultraviolet rays that are harmful to the eyes, in order to correct or protect the visual acuity. It is usually made of optical glass, but in special cases it is made of plastic, In addition, it can be made of various kinds of materials according to the purpose of use.

In the present embodiment, the lens may be provided with a prism (or a mirror) on the inside (or on the inner or outer surface) or the frame (see FIGS. 1B, 1C and 2A) (Or a mirror) as shown in Fig. 2 (b)). It should be noted that the prisms in the drawings according to the present embodiment are exaggeratedly shown for convenience of explanation.

In the present embodiment, the prism (or mirror) is a projection body obtained by cutting a material such as glass into a precise angle and a plane in order to disperse, reflect, (Or reflection) along the imaging optical path (or the reflection path) so that the camera 110 attached to the objective lens can take a desired portion of the iris.

At this time, at least one prism may be provided in association with one another in order to obtain a desired refraction angle (or an angle of refraction) (that is, a refraction angle for setting an appropriate imaging optical path for photographing a desired specific portion of the iris in the camera) .

For example, referring to FIGS. 1B and 1C, the prism may be installed either inside the lens (or inside or outside) depending on the angle of the camera 110 (see FIGS. 1C and 2A) And another prism in conjunction with a prism provided on the inside (or inside or outside) of the lens may be additionally provided outside the frame to obtain a desired oyster angle (or reflection angle) (see FIG. 1B).

On the other hand, in order to implement the prism (or mirror) on the outer circumferential surface of the lens, the outer circumferential surface of the lens can be cut at a desired specific angle (see FIG. That is, the outer peripheral surface of the lens can be cut into a polygonal shape. At this time, the cutting surface may be cut in a plane shape inclined inward or outward, and may be cut in a curved shape to obtain a beautiful shape or a desired refractive index (or reflectivity).

In the present embodiment, the lens may be a spherical lens such as a concave lens or a convex lens for correcting the visual acuity, and may be a flat lens (i.e., at least one of the outer side and the inner side of the lens is a flat Lens) (or an aspherical lens).

The eyeglasses legs are attached to the left and right sides of the spectacle frame so that the iris recognition glasses are placed on the ear. In this embodiment, a driving device (or a driving circuit, a power source, etc.) (not shown) for iris recognition may be mounted on the eyeglass leg (see FIG. 3). That is, the driving device may be mounted on the outside of the spectacle leg or may be built in. However, the present invention is not limited to this, and the driving device may be mounted inside or outside the frame (i.e., the spectacle frame).

Further, an electrically controllable transparent display (not shown) may be overlaid on the outside of the lens or may be coated in film form (see FIG. 4). In this embodiment, the transparent display (not shown) can be used as the background unit 130 (see FIG. 3) of the iris recognition glasses 100.

The background unit 130 darkens the background (i.e., the outside of the glasses that the user looks at) when performing the iris recognition operation while wearing the iris recognition glasses 100, and blocks the visible light even in the bright surroundings 132) (see FIG. 5) for facilitating iris recognition and for guiding the user's view to a desired direction in the background unit 130 (for example, visual guided image, May be used for the purpose of outputting. At this time, the image (e.g., the visual guidance image) 132 may be fixedly displayed at a specific position in the display area of the background unit 130, or may be displayed to move in a desired direction under the control of the controller 170 .

The transparent display (not shown) may be a transparent liquid crystal display (LCD), for example, a polymer dispersed liquid crystal (PDLC). The polymer dispersed liquid crystal (PDLC) A composite material of a liquid crystal composition and displays a scattering mode or a transparent mode according to a voltage application method (for example, normal or reverse), and does not require a polarizing plate and can display a high luminance.

That is, in the polymer dispersed liquid crystal (PDLC), the liquid crystal molecules in the polymer dispersed liquid crystal (PDLC) element and the polymer phase-separate to form small liquid crystal droplets between the polymer networks. In the polymer dispersed liquid crystal (PDLC) The liquid crystal molecules in the liquid crystal droplets are aligned in one direction and become equal to the refractive index of the polymer. As a result, the incident light transmits the specimen transparently, while when the voltage is not applied, the liquid crystal molecules in the liquid crystal droplets The molecules are arranged in an arbitrary direction, so that a difference occurs between the effective refractive index of the liquid crystal droplet and the refractive index of the polymer, and as a result, the incident light is scattered opaquely. That is, when the voltage is applied, the normal type polymer dispersed liquid crystal (PDLC) is in a transparent display state in which light is transmitted, and in the case of no voltage being applied, the display is driven in an opaque display state in which light is scattered .

FIG. 3 is an exemplary diagram showing the configuration of main components for driving the iris recognition glasses according to an embodiment of the present invention.

3, the iris recognition eyewear 100 according to an embodiment of the present invention includes a camera 110, an illumination unit 120, a background unit 130, a communication unit 140, a sensor unit 150, And a driving unit 160.

The camera 110 photographs the iris under the control of the controller 170.

The iris may be photographed in front or on one side depending on the position of the camera 110. That is, the iris may be entirely photographed or only a specific portion may be photographed according to the position of the camera 110 and the control of the controller 170. For this, the camera 110 may be installed on one side (e.g., up, down, left, right, front, etc.) of the lens (e.g., eyeglass frame,

(Or a reflecting member) (for example, a prism or a mirror) is additionally installed in the imaging direction (or optical axis direction) of the camera 110 in a direction in which the iris can not be directly photographed from the front side, The iris can be photographed by changing the optical path (or the reflection path).

Meanwhile, the camera 110 may be an infrared camera, or a digital camera using a digital image sensor (e.g., CMOS or CCD) may be used. In addition, the camera 110 may be configured as a module including electronic components (not shown) required for driving, and the camera 110 may use an ultra-small camera module for an endoscope.

The camera 110 may rotate the imaging optical path (or the reflection path) so that the imaging optical path (or the reflection path) is set toward a desired prism (or mirror) in order to photograph a specific portion of the iris under the control of the controller 170. And may include at least one drive motor (not shown) for this purpose. For example, at least three drive motors are required to rotate the camera 110 in three axes (x, y, z).

The illumination unit 120 adjusts the brightness (or brightness) of the background unit 130 when recognizing the iris according to the control of the controller 170.

For example, the iris plays a role of adjusting the amount of light incident on the eye, and expands or contracts according to the brightness (that is, according to the amount of irradiation of light) to change the size of the pupil. 6 (b)). In the dark place, the pupil is enlarged by reducing the iris (see Fig. 6 (a)).

Therefore, in this embodiment, when the iris is recognized, the iris is expanded or contracted by adjusting the amount of light incident on the eye through the illumination unit 120 in multiple stages. That is, when recognizing an iris, at least two consecutive irises (eg, extended iris, retracted iris) are photographed. Accordingly, a contact lens or the like can be used to distinguish the iris forged or stolen.

Also, the illumination unit 120 may be illuminated in a direct manner using a light emitting device (e.g., an LED), but in such a case, a user's eyes may be irritated. Therefore, in this embodiment, the brightness (or brightness) of the entire background unit 130 is controlled to adjust the size of the iris by indirect illumination without stimulating the user's eyesight.

For example, the illumination unit 120 may be installed inside the spectacle frame for illumination, and may illuminate the background unit 130 and the lens.

If the transparent display device (not shown) used as the background unit 130 can self-emit light, the luminance of the background unit 130 itself may be adjusted without installing the illumination unit 120, .

For example, the background portion 130 may use a transparent display element (not shown) and may be attached to the outside of the lens or coated in a film form, as shown in FIG.

5, the background unit 130 may display an image for guiding a user's gaze in a desired direction (for example, a visual guidance Image) 132 of the image. At this time, the image (for example, the visual guidance image) 132 may be fixedly displayed at a specific position of the display area of the background unit 130, or may be displayed in a desired direction have.

As described above, the iris recognition glasses 100 according to the present embodiment can simultaneously control the size of the iris and the direction of the visual guidance, thereby naturally shrinking or expanding a desired portion of the user's iris to a desired size do.

The background unit 130 outputs an arbitrary image (or moving image) received through the camera 110 or the communication unit 140, or outputs the image (or moving image) to the internal memory (not shown) And output the stored image (or moving image).

The communication unit 140 may transmit a control signal (or a control command) for controlling the iris recognition glasses 100 according to the present embodiment to an external device (not shown) such as a mobile phone, a computer, (E.g., iris imaging information, iris recognition information, illumination control information, and the like) according to the control command from the external device (e.g., an immigration control system, an entrance control system, To the system.

The communication unit 140 may perform wired / wireless communication and may be implemented using at least one of a short range wireless communication (e.g., Bluetooth, WiFi, infrared, NFC) or a long distance wireless communication (e.g., 3G, 4G, Wireless communication can be performed.

The sensor unit 150 may detect at least one of a motion detection sensor, a GPS, a gyro sensor, and an acceleration sensor for detecting additional information related to a user's motion or position. In addition, the above-described unillustrated functional sensors (for example, sensors for detecting health-related information such as a user's body temperature or pulse detection) may further be included.

The information detected through the sensor unit 150 is not directly related to the iris recognition operation. However, when information for security and user authentication is transmitted to an external device or system, Or processed.

The driving unit 160 controls the driving motor (not shown) under the control of the controller 170 to drive the photographing direction (or the imaging optical path or the reflecting path) of the camera 110 to a desired prism .

For example, when the camera 110 is installed on the front face of the iris, it is not necessary to rotate the camera 110. However, if the camera 110 is installed in a direction other than the front face of the iris, The driving unit 160 rotates the camera 110 toward a prism (or a mirror) corresponding to an imaging optical path (or a reflection path) capable of photographing a desired specific portion of the iris.

To this end, the driving motor (not shown) may be provided with three driving motors for rotating the camera 110 in three axes (x, y, z). Of course, in order to substantially rotate the camera 110 in a desired direction, a mechanical gear (not shown) such as a gear (not shown) and a rotation shaft (not shown) interlocked with the driving motor .

The controller 170 controls the overall operation of the iris recognition glasses 100 according to an embodiment of the present invention.

Specifically, the controller 170 controls the camera 110 to photograph the iris of the wearer of the iris recognition glasses 100. The control unit 170 controls the illumination of the illumination unit 120 in multiple stages to shrink or expand the iris to detect whether the iris is falsified or stolen, ) In conjunction with the illumination control of the iris.

The control unit 170 may display the entire display area of the background unit 130 in a desired specific color (e.g., black, red, blue, yellow or the like) By displaying a preset specific image (e.g., an image for visual guidance) and moving it in a desired direction, the user's line of sight moves along the image so that the iris of a desired specific portion can be accurately photographed.

At this time, the controller 170 can obtain the indirect lighting effect with less irritation to the eyes by using the background unit 130 as illumination.

The control unit 170 changes the illumination color (or the background color) of the illumination unit 120 or the background unit 130 to at least one other color to detect whether the iris is falsified or stolen, The iris is captured by interfacing the camera 110 with the illumination color (or background color) control of the illumination unit 120 or the background unit 130. That is, since the iris color is different for each person, it is possible to detect a more accurate iris pattern in a specific color illumination. Also, iris recognition can be performed in a constant environment regardless of the environment around the user.

In addition, the controller 170 may detect iris patterns and iris colors from an iris image photographed through the camera 110 and store the iris patterns and iris colors in an internal memory (not shown), or an external device (not shown) Through the communication unit 140, the iris pattern and the iris color so that the iris pattern and iris color can be used for a specific purpose (e.g., user authentication, medical examination, etc.).

Also, the controller 170 may perform iris recognition by itself by comparing the iris pattern and iris color of the user stored in the internal memory (not shown) with the iris pattern and the iris color. And allow the user to use the iris recognition glasses 100 only for the authenticated (or authorized) user through his or her own iris recognition. That is, only the user designated in the iris recognition glasses 100 can detect the iris recognition information of the user and transmit it to an external device or system. Therefore, the initial user information can be registered and stored in the internal memory (not shown).

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, I will understand the point. Accordingly, the technical scope of the present invention should be defined by the following claims.

110: camera 120: illuminator
130: background unit 140: communication unit
150: sensor unit 160:
170:

Claims (5)

A lens having a prism formed on at least one of an inner side, an inner side surface, an outer side surface, or an outer circumferential surface;
A frame that surrounds and partially surrounds the entire lens and has a prism installed in association with a prism formed on the lens to form at least one imaging optical path; And
A camera for photographing an iris through an imaging optical path formed by at least one of a prism formed on the lens and a prism provided on the lens, the camera comprising: Is mounted on or mounted on the eyeglass legs, the iris recognition eyeglasses being mounted or mounted on the eyeglass legs.
The method according to claim 1,
The prism formed on the outer circumferential surface of the lens is cut in a polygonal shape on the outer circumferential surface of the lens, and each of the cut surfaces is cut in plan or curved shape inclined inward or outward, Or a flat lens.
2. The iris recognition apparatus according to claim 1,
An electrically controllable transparent display element on the outside of the lens is overlaid or coated in film form,
Displaying the entire display area of the transparent display device with a specific color or displaying an image for visual guidance at a specific position of the display area in order to guide the user's view in a desired direction,
And the brightness of the entire display area is adjusted to shrink or expand the size of the iris.
1. An iris recognition eyeglass that recognizes a user's iris in a state of being worn on a user's face in the form of a spectacle,
A camera for photographing a front part of the iris or a desired specific part;
An illumination unit for irradiating light to shrink or expand the size of the iris;
A communication unit for receiving a control command for controlling the iris recognition glasses from an external device or a system and transmitting an execution result according to the control command to the external device or system;
A driving unit that rotates the camera using a driving motor so that the photographing direction of the camera is directed to an imaging optical path formed so as to photograph a desired specific portion of the iris;
At least one sensor for detecting at least one of information relating to a user's movement and position when wearing the iris recognition glasses and information including body temperature and pulse information of the user; And
Capturing an iris by interlocking the camera with illumination control of the illumination unit,
An iris pattern and an iris color are detected from the captured iris image and stored in an internal memory or the iris pattern and iris color are transmitted to an external security device or a user authentication system through the communication unit,
A controller for comparing the iris pattern and iris color of the user stored in the internal memory with the detected iris pattern and iris color and performing iris recognition by itself and allowing the user to use the iris recognition glasses only for the authenticated user; Wherein the iris recognition glasses include a plurality of iris recognition glasses.
5. The method of claim 4,
The illumination unit may be direct illumination using a light emitting element mounted inside the frame of the iris recognition glasses, indirect illumination using a transparent display element which is overlaid on the outside of the lens of the iris recognition glasses or coated with a film,
According to the control of the control unit, the entire display area of the transparent display device is displayed with a specific color, or an image for visual guidance is displayed at a specific position of the display area in order to guide the user's time in a desired direction, Wherein the brightness of the entire display area is adjusted in multiple stages to shrink or expand the size of the iris.

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