WO2017020418A1

WO2017020418A1 - Iris image recognition method and user equipment

Info

Publication number: WO2017020418A1
Application number: PCT/CN2015/091340
Authority: WO
Inventors: 高大宇
Original assignee: 宇龙计算机通信科技(深圳)有限公司
Priority date: 2015-07-31
Filing date: 2015-09-30
Publication date: 2017-02-09
Also published as: CN105574481B; CN105574481A

Abstract

Disclosed are an iris image recognition method and user equipment. The method comprises: collecting a collected object to obtain a first iris image; recognizing whether target iris information matching iris information carried in the first iris image exists in pre-stored preset iris information, and determining, based on an original radius of a pupil in the first iris image, whether the first iris image is a real iris image; and determining that the first iris image is a legal iris image when the target iris information exists and the first iris image is a real iris image. Implementing the embodiments of the present invention can improve the security of user equipment information.

Description

Iris image recognition method and user equipment

Technical field

The present invention relates to the field of smart device technologies, and in particular, to an iris image recognition method and user equipment.

Background technique

Iris recognition refers to fast and accurate identity authentication by collecting iris images, analyzing and contrasting iris feature information in iris images. Currently, in order to prevent an illegal user from operating a user device (such as a smart phone), an iris recognizer is generally configured on the user device for performing iris locking on the user device screen to identify the user.

However, in practice, it has been found that iris images are easily forged. An illegal user can forge an iris image of a legitimate user, unlock the user device through the forged iris image, and then operate the user device arbitrarily, which easily leaks information of the user device.

Summary of the invention

The embodiment of the invention provides an iris image recognition method and a user equipment, which can improve the security of the user equipment information.

The first aspect of the embodiments of the present invention discloses an iris image recognition method, including:

Collecting the collected object to obtain a first iris image;

Identifying, in the pre-stored preset iris information, whether there is target iris information matching the iris information carried by the first iris image, and determining the first iris image based on an original radius of the pupil in the first iris image Whether it is a true iris image;

When the target iris information is present and the first iris image is a real iris image, the first iris image is determined to be a legal iris image.

A second aspect of the embodiment of the present invention discloses a user equipment, including:

The collecting unit is configured to collect the collected object to obtain the first iris image;

An identification unit, configured to identify whether the first iris is present in the pre-stored preset iris information The iris information of the iris information matched by the image;

a determining unit, configured to determine, according to an original radius of the pupil in the first iris image, whether the first iris image is a real iris image;

a determining unit, configured to: when the identifying unit identifies pre-stored preset iris information, there is target iris information matching the iris information carried by the first iris image, and the determining unit is based on the first iris image The original radius of the pupil is determined, and when the first iris image is determined to be a real iris image, the first iris image is determined to be a legal iris image.

In the embodiment of the present invention, the user equipment collects the collected object to obtain the first iris image. Further, the user equipment identifies whether the target iris corresponding to the iris information carried by the first iris image exists in the preset preset iris information. And determining, according to the original radius of the pupil in the first iris image, whether the first iris image is a real iris image; when the target iris information is present and the first iris image is a real iris image, the user equipment determines that the first iris image is Legal iris image. It can be seen that, by using the embodiment of the present invention, the user equipment can identify the forged iris image, thereby improving the security of the user equipment information.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Other drawings may also be obtained from those of ordinary skill in the art in light of the inventive work.

1 is a schematic flow chart of an iris image recognition method according to an embodiment of the present invention;

2 is a schematic flow chart of another iris image recognition method according to an embodiment of the present invention;

3 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;

4 is a schematic structural diagram of another user equipment according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another user equipment according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of another user equipment according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, instead of All embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The embodiment of the invention discloses an iris image recognition method and a user equipment, which can improve the security of the user equipment information. The details are described below separately.

In the embodiment of the present invention, the user equipment may be any device with an iris image recognition function, such as a special iris image recognition device or a smart terminal, where the smart terminal may include, but is not limited to, a smart phone, a notebook computer, a personal computer. (Personal Computer, PC), Personal Digital Assistant (PDA), Mobile Internet Device (MID), smart wearable devices (such as smart watches, smart bracelets) and other user equipment.

Please refer to FIG. 1. FIG. 1 is a schematic flow chart of an iris image recognition method according to an embodiment of the present invention. As shown in FIG. 1, the method can include the following steps.

S101. Collect an acquisition object to obtain a first iris image.

In the embodiment of the present invention, the user equipment needs to first turn on the camera, and further, capture the captured object in the collection area of the camera to obtain the first iris image of the collected object. The collection object may be a real person. For example, the user equipment captures a face in the collection area of the camera, so that a face image including the iris can be obtained, and the user equipment can extract the face image. The first iris image is output, or the acquisition object may be an iris image. For example, the user equipment photographs the iris image in the collection area of the camera, so that the first iris image can be obtained.

S102. Identify whether the pre-stored preset iris information has target iris information matching the iris information carried by the first iris image, and determine whether the first iris image is a real iris based on the original radius of the pupil in the first iris image. image.

In the embodiment of the present invention, after the user equipment collects the collected object to obtain the first iris image, the user equipment can simultaneously identify whether the target iris corresponding to the iris information carried by the first iris image exists in the preset preset iris information. Information, and based on the original radius of the pupil in the first iris image, determining whether the first iris image is a true iris image, or

The user equipment may first identify whether the target iris information matching the iris information carried by the first iris image exists in the preset preset iris information, and when the recognition result is yes, based on the original radius of the pupil in the first iris image, Determining whether the first iris image is a true iris image, or

The user device may first determine the first iris map based on the original radius of the pupil in the first iris image. If the image is a true iris image, when the determination result is YES, it is recognized whether there is target iris information matching the iris information carried by the first iris image in the preset preset iris information.

In the embodiment of the present invention, the user equipment may pre-store a plurality of preset iris information. After obtaining the first iris image, the user equipment may perform image pre-processing on the first iris image, and adopt a specific algorithm from the processed first The iris information required for iris recognition is extracted and encoded in the iris image. Further, the extracted iris information is compared with a plurality of preset iris information in the database one by one to determine whether the matching degree is greater than a preset. The threshold value is, for example, 80%. If yes, the user equipment may determine the preset iris information with the matching degree greater than the preset threshold as the target iris information.

In the embodiment of the present invention, after the user equipment acquires the first iris image, the user equipment may determine whether the first iris image is a real iris image by using various manners.

As an optional implementation manner, the user equipment determining whether the first iris image is a real iris image based on the original radius of the pupil in the first iris image may include the following steps:

11) determining an original radius of the pupil in the first iris image;

12) detecting a first distance from the pupil of the object to the user equipment when acquiring the first iris image;

13) detecting a second distance from the pupil of the collection object to the user equipment when the user equipment is moved;

14) determining a target radius of the pupil in the second iris image obtained by acquiring the acquisition object at the second distance;

15) determining whether the product of the first distance and the original radius is equal to the product of the second distance and the target radius;

16) When the judgment result is no, it is determined that the first iris image is a real iris image.

In this embodiment, after the user equipment acquires the first iris image, the user equipment may determine the original radius of the pupil in the first iris image, and detect, by the distance sensor, the pupil of the object when collecting the first iris image to the user. The first distance of the device, further, the user can move the user equipment back and forth. At this time, the distance sensor can detect the second distance from the pupil of the collection object to the user equipment when the user equipment is moved, and determine the collection object at the second distance. The target radius of the pupil in the second iris image obtained by the acquisition. In this way, the user equipment can determine whether the product of the first distance and the original radius is equal to the product of the second distance and the target radius. According to the conclusion obtained by a plurality of experiments in advance, if the user equipment determines that the product of the first distance and the original radius is equal to the product of the second distance and the target radius, it may be determined that the identified first iris image is a forged iris image, if the first distance The product of the original radius is not equal to the product of the second distance and the target radius, and then the first iris image to be identified can be determined to be a real iris image. In general, if the object is a fake iris image, Then, the collection object does not change regardless of how the user equipment moves forward and backward. When the distance from the pupil of the acquisition object to the user equipment becomes small, the target radius of the pupil in the collected second iris image becomes larger, and when the distance from the pupil of the acquisition object to the user equipment becomes larger, the second iris is collected. The target radius of the pupil in the image will become smaller, but many experiments have shown that for a forged iris image, the product of the first distance and the original radius is always equal to the product of the second distance and the target radius, and if the acquisition object is true The radius of the pupil of a person changes, that is, the object of the acquisition changes, so that the product of the first distance and the original radius is not equal to the product of the second distance and the target radius.

As another optional implementation manner, the user equipment determining whether the first iris image is a real iris image based on the original radius of the pupil in the first iris image may include the following steps:

21) determining an original radius of the pupil in the first iris image;

22) outputting a first prompt information for prompting the collection object to enlarge the pupil;

23) collecting the collected object after outputting the first prompt information to obtain a third iris image;

24) determining a first radius of the pupil in the third iris image;

25) determining whether the first radius is equal to the original radius;

26) If not equal, it is determined that the first iris image is a true iris image.

In this embodiment, after the user equipment acquires the first iris image, the user equipment may determine the original radius of the pupil in the first iris image, and further, the user equipment may output a first item for prompting the collection object to enlarge the pupil. a prompt message, after collecting the first prompt information, collecting the collected object to obtain a third iris image, and determining a first radius of the pupil in the third iris image, and further, the user equipment determines the first radius and the original Whether the radii are equal, if not equal, it is determined that the first iris image is a real iris image.

Generally, if the collection object is a real person, after the user equipment outputs the first prompt information for prompting the collection object to enlarge the pupil, the user responds to the first prompt information and enlarges the pupil. The user equipment may collect the acquired object to obtain a third iris image. The first radius of the pupil in the third iris image is the radius of the enlarged pupil, and therefore, the first radius and the original radius are not equal.

If the collected object is a forged iris image, after the user equipment outputs the first prompt information for prompting the acquisition object to enlarge the pupil, the collected object is collected to obtain the third iris image, because the forged iris image is The pupil does not change, so the first radius is the same as the original radius Wait.

Therefore, the user equipment can determine whether the first iris image is a real iris image by determining whether the first radius is equal to the original radius.

31) determining an original radius of the pupil in the first iris image;

32) outputting a second prompt information for prompting the collection object to shrink the pupil;

33) collecting the collected object after outputting the second prompt information to obtain a fourth iris image;

34) determining a second radius of the pupil in the fourth iris image;

35) determining whether the second radius is equal to the original radius;

36) If not equal, it is determined that the first iris image is a real iris image.

In this embodiment, after the user equipment acquires the first iris image, the user equipment may determine the original radius of the pupil in the first iris image, and further, the user equipment may output a first item for prompting the collection object to shrink the pupil. The second prompt information is collected after the second prompt information is output to obtain the fourth iris image, and the second radius of the pupil in the fourth iris image is determined, and further, the user equipment determines the second radius and the original Whether the radii are equal, if not equal, it is determined that the first iris image is a real iris image.

Generally, if the collection object is a real person, after the user equipment outputs the second prompt information for prompting the collection object to shrink the pupil, the user responds to the second prompt information and shrinks the pupil. The user equipment may collect the acquired object to obtain a fourth iris image. The second radius of the pupil in the fourth iris image is the radius of the contracted pupil, and thus the second radius is not equal to the original radius.

If the collected object is a forged iris image, after the user equipment outputs the second prompt information for prompting the collecting object to shrink the pupil, the collecting object is collected to obtain the fourth iris image, because the forged iris image is The pupil does not change, so the second radius is equal to the original radius.

Therefore, the user equipment can determine whether the first iris image is a real iris image by determining whether the second radius is equal to the original radius.

S103. When the target iris information exists and the first iris image is a real iris image, determine the first The iris image is a legal iris image.

In the embodiment of the present invention, when the user equipment recognizes that the target iris information matched with the iris information carried by the first iris image exists in the preset iris information stored in the first iris image, and determines the first radius based on the original radius of the pupil in the first iris image, When the iris image is a real iris image, the user device can determine that the first iris image is a legal iris image.

In the embodiment of the present invention, the first iris image is determined to be a legal iris image, and the user equipment may perform a target operation, for example, the user equipment unlocks the screen, or the user equipment opens other devices that are bound to the user equipment.

As an optional implementation manner, when the user equipment identifies that the target iris information that is matched with the iris information carried by the first iris image does not exist in the preset preset iris information, the user equipment does not need to be based on the first iris image. The original radius of the pupil is used to determine whether the first iris image is a real iris image. At this time, the user equipment can directly determine that the first iris image is an illegal iris image, that is, a forged iris image.

As another optional implementation manner, when the user equipment determines that the first iris image is not a real iris image based on the original radius of the pupil in the first iris image, the user equipment does not need to identify whether the preset iris information is stored in advance. There is target iris information matching the iris information carried by the first iris image. At this time, the user equipment can directly determine that the first iris image is an illegal iris image, that is, a forged iris image.

In the method flow described in FIG. 1 , the user equipment collects the collected object to obtain the first iris image. Further, the user equipment identifies whether the pre-stored preset iris information exists and the iris information carried by the first iris image. Matching the target iris information, and determining whether the first iris image is a real iris image based on the original radius of the pupil in the first iris image; when the target iris information is present and the first iris image is a real iris image, the user equipment determines An iris image is a legal iris image. It can be seen that, by using the embodiment of the present invention, the user equipment can identify the forged iris image, thereby improving the security of the user equipment information.

Referring to FIG. 2, FIG. 2 is a schematic flowchart diagram of another iris image recognition method according to an embodiment of the present invention. As shown in FIG. 2, the method can include the following steps.

S201. The user equipment collects the collected object to obtain a first iris image.

S202. The user equipment identifies whether the pre-stored preset iris information exists and the first iris image. The target iris information matched by the carried iris information, and determining whether the first iris image is a real iris image based on the original radius of the pupil in the first iris image;

S203. When the target iris information is present and the first iris image is a real iris image, the user equipment determines that the first iris image is a legal iris image.

S204. The user equipment displays a dynamic circle on the screen.

In the embodiment of the present invention, after acquiring the first iris image, the user equipment may determine the original radius of the pupil in the first iris image from the first iris image, and at the same time, the user equipment may display a circle on the screen. The circle may have a radius of the original radius as a circle, and the center of the circle may be centered at any position on the screen.

In one embodiment, after the user device acquires the second iris image and determines the target radius of the pupil in the second iris image, the radius of the circle displayed on the screen may dynamically change, and at this time, the radius of the circle becomes the target radius. After the user device acquires the third iris image and determines the first radius of the pupil in the third iris image, the radius of the circle displayed on the screen may dynamically change, and at this time, the radius of the circle becomes the first radius; After the device acquires the fourth iris image and determines the second radius of the pupil in the fourth iris image, the radius of the circle displayed on the screen can be dynamically changed, and at this time, the radius of the circle becomes the second radius.

In the method flow described in FIG. 2, after the user equipment collects the acquired object and acquires the iris image, the user equipment can display a dynamic circle on the screen, and the radius of the circle is always the pupil in the collected iris image. The radius of the circle is equal, that is, if the radius of the pupil in the collected iris image changes, the radius of the circle also changes. It can be seen that, by using the embodiment of the invention, the display effect of the screen can be enhanced, and the user experience is improved.

The following is an embodiment of the device of the present invention. The device embodiment of the present invention is used to perform the method in the method embodiment of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown, and the specific technical details are not disclosed. Reference is made to the above method embodiments of the present invention.

Referring to FIG. 3, FIG. 3 is a schematic structural diagram of a user equipment according to an embodiment of the present invention. As shown in FIG. 3, the user equipment 300 may include: an acquiring unit 301, an identifying unit 302, a determining unit 303, and a determining unit 304. ,among them:

The collecting unit 301 is configured to collect the collected object to obtain the first iris image.

In the embodiment of the present invention, the user equipment needs to first turn on the camera. Further, the collecting unit 301 captures the collected object in the collection area of the camera to obtain the first rainbow of the collected object. Film image. The collection object may be a real person. For example, the collection unit 301 captures a face in the collection area of the camera, so that a face image including the iris can be obtained, and the collection unit 301 can obtain the face image from the face. The first iris image is extracted, or the acquisition object may be an iris image. For example, the acquisition unit 301 captures an iris image in the collection area of the camera, so that the first iris image can be obtained.

The identifying unit 302 is configured to identify whether there is target iris information matching the iris information carried by the first iris image in the preset preset iris information.

In the embodiment of the present invention, the user equipment may pre-store a plurality of preset iris information. After obtaining the first iris image, the identifying unit 302 may perform image pre-processing on the first iris image, using a specific algorithm from the processed The iris information required for iris recognition is extracted and encoded in an iris image. Further, the extracted iris information is compared with a plurality of preset iris information in the database, and the matching degree is determined to be greater than the pre-determination. A threshold value, for example, 80% is set. If yes, the identification unit 302 may determine the preset iris information whose matching degree is greater than the preset threshold as the target iris information.

The determining unit 303 is configured to determine whether the first iris image is a real iris image based on the original radius of the pupil in the first iris image.

The determining unit 304 is configured to: when the identifying unit 302 identifies that the target iris information matched with the iris information carried by the first iris image exists in the preset iris information stored in advance, and the determining unit 303 is based on the original radius of the pupil in the first iris image When it is determined that the first iris image is a real iris image, the first iris image is determined to be a legal iris image.

As an optional implementation, the user equipment 300 shown in FIG. 3 may further include:

The display unit 305 is configured to display a dynamic circle on the screen, the circle being the radius of the circle with the original radius of the pupil in the currently acquired first iris image, and the center of the circle may be any position of the screen.

Referring to FIG. 4, FIG. 4 is a schematic structural diagram of another user equipment according to an embodiment of the present invention. The user equipment shown in FIG. 4 is further optimized based on the user equipment shown in FIG. The user equipment shown in FIG. 3, in addition to all the units of the user equipment shown in FIG. 3, the determining unit 303 may include:

The first determining subunit 3301 is configured to determine an original radius of the pupil in the first iris image.

The detecting subunit 3302 is configured to detect a first distance of the pupil of the object to the user equipment when acquiring the first iris image.

The detecting subunit 3302 is further configured to detect a second distance from the pupil of the collecting object to the user equipment when the user equipment is moved.

The first determining subunit 3301 is further configured to determine a target radius of the pupil in the second iris image obtained by collecting the collected object at the second distance.

The first determining sub-unit 3303 is configured to determine whether the product of the first distance and the original radius is equal to the product of the second distance and the target radius.

The first determining sub-unit 3301 is further configured to determine that the first iris image is a real iris image when the determination result of the first determining sub-unit 3303 is negative.

In this embodiment, after the acquiring unit 301 acquires the first iris image, the first determining subunit 3301 may determine the original radius of the pupil in the first iris image, and the detecting subunit 3302 detects the first iris in the first iris by the distance sensor. The image is collected from the pupil of the object to the first distance of the user equipment. Further, the user can move the user equipment back and forth. At this time, the detecting subunit 3302 can detect the pupil of the collecting object when the user equipment is moved to the user equipment by using the distance sensor. The second distance, the first determining sub-unit 3301 determines a target radius of the pupil in the second iris image obtained by acquiring the acquired object at the second distance. Thus, the first determining sub-unit 3303 can determine whether the product of the first distance and the original radius is equal to the product of the second distance and the target radius. According to a conclusion obtained by a plurality of experiments in advance, if the first judging subunit 3303 judges that the product of the first distance and the original radius is equal to the product of the second distance and the target radius, the first determining subunit 3301 may determine the first iris to be identified. The image is a forged iris image. If the product of the first distance and the original radius is not equal to the product of the second distance and the target radius, the first determining subunit 3301 may determine that the identified first iris image is a real iris image. In general, if the acquisition object is a forged iris image, the acquisition object does not change regardless of how the user device moves forward and backward. When the distance from the pupil of the acquisition object to the user equipment becomes small, the target radius of the pupil in the collected second iris image becomes larger, and when the distance from the pupil of the acquisition object to the user equipment becomes larger, the second iris is collected. The target radius of the pupil in the image will become smaller, but many experiments have shown that for a forged iris image, the product of the first distance and the original radius is always equal to the product of the second distance and the target radius, and if the acquisition object is true The radius of the pupil of a person changes, that is, the object of the acquisition changes, so that the product of the first distance and the original radius is not equal to the product of the second distance and the target radius.

As an optional implementation, the user equipment 300 shown in FIG. 4 may further include:

The display unit 305 is configured to display a dynamic circle on the screen. Where the circle is currently collected The radius of the pupil in the iris image is the radius of the circle, and the center of the circle can be anywhere on the screen.

In this embodiment, after the first determining sub-unit 3301 determines the original radius of the pupil in the first iris image, the display unit 305 may display a radius on the screen with the original radius as a circle, and the arbitrary position of the screen is the center of the circle. Circle, further, after the first determining sub-unit 3301 determines the target radius of the pupil in the second iris image obtained by acquiring the acquisition object at the second distance, the display unit 305 may display a target radius on the screen. The radius of the circle, the arbitrary position of the screen is the circle of the center of the circle.

Referring to FIG. 5, FIG. 5 is a schematic structural diagram of another user equipment according to an embodiment of the present invention. The user equipment shown in FIG. 5 is further optimized based on the user equipment shown in FIG. The user equipment shown in FIG. 3, in addition to all the units of the user equipment shown in FIG. 3, the determining unit 303 may include:

The second determining subunit 3304 is configured to determine an original radius of the pupil in the first iris image.

The first output subunit 3305 is configured to output first prompt information for prompting the collection object to enlarge the pupil.

The first collecting sub-unit 3306 is configured to collect the collected object after the first output sub-unit 3305 outputs the first prompt information to obtain a third iris image.

The second determining subunit 3304 is further configured to determine a first radius of the pupil in the third iris image.

The second determining sub-unit 3307 is configured to determine whether the first radius is equal to the original radius.

The second determining sub-unit 3304 is further configured to determine that the first iris image is a real iris image when the second determining sub-unit 3307 determines that the first radius is not equal to the original radius.

In this embodiment, after the acquisition unit 301 acquires the first iris image, the second determination subunit 3304 may determine the original radius of the pupil in the first iris image. Further, the first output subunit 3305 may output for The first prompt sub-unit 3306 collects the first prompt information after the first output sub-unit 3305 outputs the first prompt information to acquire the third iris image, and the second determining sub-unit 3304 determines a first radius of the pupil in the third iris image. Further, the second determining subunit 3307 determines whether the first radius is equal to the original radius. If not, the second determining subunit 3304 determines the first iris image. For true iris images.

Generally, if the collection object is a real person, the first output sub-unit 3305 outputs the first prompt information for prompting the collection object to enlarge the pupil, and then the user responds to the first prompt information and enlarges the pupil. At this time, the first collection subunit 3306 can collect the collection object to Obtaining a third iris image, the first radius of the pupil in the third iris image is the radius of the enlarged pupil, and therefore, the first radius is not equal to the original radius.

If the collected object is a forged iris image, the first output sub-unit 3305 collects the first prompt information for prompting the acquisition object to enlarge the pupil, and the first collection sub-unit 3306 collects the collected object to obtain the first In the three iris image, since the pupil in the forged iris image does not change, the first radius is equal to the original radius.

Therefore, the second determining sub-unit 3304 can determine whether the first iris image is a real iris image by determining whether the first radius and the original radius are equal by the second determining sub-unit 3307.

As an optional implementation manner, the user equipment 300 shown in FIG. 5 may further include:

The display unit 305 is configured to display a dynamic circle on the screen. Wherein, the circle is a radius of a circle of a pupil in the currently acquired iris image, and the center of the circle may be any position of the screen.

In this embodiment, after the second determining sub-unit 3304 determines the original radius of the pupil in the first iris image, the display unit 305 can display a radius on the screen with the original radius as a circle, and the arbitrary position of the screen is the center of the circle. Circle, further, after the second determining sub-unit 3304 determines the first radius of the pupil in the third iris image, the display unit 305 may display a radius on the screen with the first radius as a circle, and the arbitrary position of the screen is the center of the circle The circle.

Referring to FIG. 6, FIG. 6 is a schematic structural diagram of another user equipment according to an embodiment of the present invention, where the user equipment shown in FIG. 6 is further optimized based on the user equipment shown in FIG. The user equipment shown in FIG. 3, in addition to all the units of the user equipment shown in FIG. 3, the determining unit 303 may include:

The third determining subunit 3308 is configured to determine an original radius of the pupil in the first iris image.

The second output subunit 3309 is configured to output second prompt information for prompting the collection object to shrink the pupil.

The second collection sub-unit 3310 is configured to collect the collected object after the second output sub-unit outputs the second prompt information to obtain the fourth iris image.

The third determining subunit 3308 is further configured to determine a second radius of the pupil in the fourth iris image.

The third determining subunit 3311 is configured to determine whether the second radius is equal to the original radius.

The third determining sub-unit 3308 is further configured to determine that the first iris image is a real iris image when the third determining sub-unit 3311 determines that the second radius is not equal to the original radius.

In this embodiment, after the acquisition unit 301 acquires the first iris image, the third determination subunit 3308 may determine the original radius of the pupil in the first iris image, and further, the second output subunit 3309 may output for And prompting the second prompt information that the collection object shrinks the pupil, after the second output subunit 3309 outputs the second prompt information, the second collection subunit 3310 collects the collected object to obtain the fourth iris image, and the third determining subunit 3308 determines a second radius of the pupil in the fourth iris image. Further, the third determining sub-unit 3311 determines whether the second radius is equal to the original radius. If not, the third determining sub-unit 3308 determines the first iris image. For true iris images.

In general, if the object to be collected is a real person, the second output subunit 3309 outputs a second prompt information for prompting the collection object to shrink the pupil, and the user responds to the second prompt information and shrinks the pupil. At this time, the second collection sub-unit 3310 can collect the acquisition object to obtain a fourth iris image, wherein the second radius of the pupil in the fourth iris image is the radius of the contracted pupil, and therefore, the second The radius is not equal to the original radius.

If the acquired object is a forged iris image, the second output sub-unit 3309 collects the second prompt information for prompting the acquisition object to shrink the pupil, and the second collection sub-unit 3310 collects the collected object to obtain the first For the four iris images, since the pupil in the forged iris image does not change, the second radius is equal to the original radius.

Therefore, the third determining sub-unit 3308 can determine whether the first iris image is a real iris image by determining whether the second radius is equal to the original radius by the third determining sub-unit 3311.

In this embodiment, after the third determining sub-unit 3308 determines the original radius of the pupil in the first iris image, the display unit 305 can display a radius on the screen with the original radius as a circle, and the arbitrary position of the screen is the center of the circle. Circle, further, after the third determining sub-unit 3308 determines the second radius of the pupil in the fourth iris image, the display unit 305 may display a radius on the screen with the second radius as a circle, and the arbitrary position of the screen is the center of the circle The circle.

In the user equipment 300 shown in FIG. 3 to FIG. 6 , the collecting unit 301 collects the collected object to acquire the first iris image. Further, the identifying unit 302 identifies whether the preset iris information is stored and stored in the preset iris information. The target iris information matched by the iris information carried by the iris image, and the determining unit 303 determines whether the first iris image is true based on the original radius of the pupil in the first iris image The iris image; when the target iris information is present and the first iris image is a real iris image, the determining unit 304 determines that the first iris image is a legal iris image. It can be seen that, by using the embodiment of the present invention, the user equipment can identify the forged iris image, thereby improving the security of the user equipment information.

It should be noted that, for the foregoing various method embodiments, for the sake of brevity, they are all described as a series of action combinations, but those skilled in the art should understand that the present application is not limited by the described action sequence. Because some steps may be performed in other orders or concurrently in accordance with the present application. In the following, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and units involved are not necessarily required by the present application.

In the above embodiments, the descriptions of the various embodiments are different, and the parts that are not described in detail in a certain embodiment can be referred to the related descriptions of other embodiments.

A person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and thus equivalent changes made in the claims of the present invention are still within the scope of the present invention.

Claims

An iris image recognition method, comprising:

Collecting the collected object to obtain a first iris image;

Identifying, in the pre-stored preset iris information, whether there is target iris information matching the iris information carried by the first iris image, and determining the first iris image based on an original radius of the pupil in the first iris image Whether it is a true iris image;

When the target iris information is present and the first iris image is a real iris image, the first iris image is determined to be a legal iris image.
The method according to claim 1, wherein determining whether the first iris image is a real iris image based on an original radius of a pupil in the first iris image comprises:

Determining an original radius of the pupil in the first iris image;

Detecting a first distance of the pupil of the collection object to the user equipment when acquiring the first iris image;

Detecting a second distance from the pupil of the collection object to the user equipment when the user equipment is moved;

Determining a target radius of the pupil in the second iris image obtained by acquiring the acquisition object by the second distance;

Determining whether a product of the first distance and the original radius is equal to a product of the second distance and the target radius;

When the determination result is no, the first iris image is determined to be a real iris image.
The method according to claim 1, wherein determining whether the first iris image is a real iris image based on an original radius of a pupil in the first iris image comprises:

Determining an original radius of the pupil in the first iris image;

Outputting a first prompt information for prompting the collection object to enlarge the pupil;

Collecting the collected object after outputting the first prompt information to obtain a third iris image;

Determining a first radius of the pupil in the third iris image;

Determining whether the first radius is equal to the original radius;

If not equal, it is determined that the first iris image is a real iris image.
The method according to claim 1, wherein determining whether the first iris image is a real iris image based on an original radius of a pupil in the first iris image comprises:

Determining an original radius of the pupil in the first iris image;

Outputting second prompt information for prompting the collection object to shrink the pupil;

Collecting the collected object after outputting the second prompt information to obtain a fourth iris image;

Determining a second radius of the pupil in the fourth iris image;

Determining whether the second radius is equal to the original radius;

If not equal, it is determined that the first iris image is a real iris image.
The method according to any one of claims 1 to 4, further comprising:

A dynamic circle is displayed on the screen, the circle being the radius of the circle with the radius of the pupil in the currently acquired iris image.
A user equipment, comprising:

The collecting unit is configured to collect the collected object to obtain the first iris image;

a recognition unit, configured to identify whether there is target iris information matching the iris information carried by the first iris image in the preset preset iris information;

a determining unit, configured to determine, according to an original radius of the pupil in the first iris image, whether the first iris image is a real iris image;

a determining unit, configured to: when the identifying unit identifies pre-stored preset iris information, there is target iris information matching the iris information carried by the first iris image, and the determining unit is based on the first iris image The original radius of the pupil is determined, and when the first iris image is determined to be a real iris image, the first iris image is determined to be a legal iris image.
The user equipment according to claim 6, wherein the determining unit comprises:

a first determining subunit, configured to determine an original radius of the pupil in the first iris image;

a detecting subunit, configured to detect a first distance of the pupil of the collecting object to the user equipment when acquiring the first iris image;

The detecting subunit is further configured to detect a second distance from the pupil of the collecting object to the user equipment when the user equipment is moved;

The first determining subunit is further configured to determine a target radius of the pupil in the second iris image obtained by acquiring the collected object by the second distance;

a first determining subunit, configured to determine whether a product of the first distance and the original radius is equal to a product of the second distance and the target radius;

The first determining subunit is further configured to: when the determination result of the first determining subunit is negative, determine that the first iris image is a real iris image.
The user equipment according to claim 6, wherein the determining unit comprises:

a second determining subunit, configured to determine an original radius of the pupil in the first iris image;

a first output subunit, configured to output first prompt information for prompting the collection object to enlarge the pupil;

The first collection subunit is configured to collect the first prompt information after the first output subunit outputs the first prompt information to obtain a third iris image;

The second determining subunit is further configured to determine a first radius of the pupil in the third iris image;

a second determining subunit, configured to determine whether the first radius is equal to the original radius;

The second determining subunit is further configured to: when the second determining subunit determines that the first radius is not equal to the original radius, determine that the first iris image is a real iris image.
The user equipment according to claim 6, wherein the determining unit comprises:

a third determining subunit, configured to determine an original radius of the pupil in the first iris image;

a second output subunit, configured to output second prompt information for prompting the collection object to shrink the pupil;

a second collection subunit, configured to collect the second object after the second output subunit outputs the second prompt information, to obtain a fourth iris image;

The third determining subunit is further configured to determine a second radius of the pupil in the fourth iris image;

a third determining subunit, configured to determine whether the second radius is equal to the original radius;

The third determining subunit is further configured to: when the third determining subunit determines that the second radius is not equal to the original radius, determine that the first iris image is a real iris image.
The user equipment according to any one of claims 6 to 9, wherein the user equipment further comprises:

A display unit for displaying a dynamic circle on the screen, the circle being the radius of the circle with the radius of the pupil in the currently acquired iris image.