WO2017000494A1

WO2017000494A1 - Iris identification method, iris identification system, and terminal

Info

Publication number: WO2017000494A1
Application number: PCT/CN2015/095666
Authority: WO
Inventors: 王志梁
Original assignee: 宇龙计算机通信科技(深圳)有限公司
Priority date: 2015-06-29
Filing date: 2015-11-26
Publication date: 2017-01-05
Also published as: CN105608408A

Abstract

An iris identification method, an iris identification system, and a terminal. The iris identification method comprises: acquiring a first iris image according to a received iris identification command; when it is determined that the first iris image is consistent with a pre-set iris image of a terminal, sending iris image change indication information; after sending of the iris image change indication information reaches predetermined time, acquiring a second iris image; and detecting whether a difference between the first iris image and the second iris image is consistent with a change effect corresponding to the iris image change indication information, so as to determine, according to a detection result, whether iris identification is successfully passed. By means of the method, it can be determined, according to a change effect of an iris image based on visual information, whether the iris image comes from a real and reliable user, thereby improving the accuracy of iris identification and authentication, preventing important information about the user from being stolen, using a faked iris, by a law breaker, improving the security of user information, and enhancing the anti-fake and anti-steal effects.

Description

Iris recognition method, iris recognition system and terminal

This application claims priority to Chinese Patent Application No. 201510369606.7, entitled "Iris Recognition Method, Iris Recognition System and Terminal", filed on June 29, 2015, the entire contents of which are incorporated herein by reference. In the application.

Technical field

The present invention relates to the field of terminal technologies, and in particular, to an iris recognition method, an iris recognition system, and a terminal.

Background technique

At present, iris recognition is obtained by taking photos of the iris of the identified person by using a sensor. The recognized person may use a high-definition image instead of a photographed photo to deceive the sensor, so that some criminals obtain important information of the user through iris recognition.

Although the iris itself has strong anti-counterfeiting features, the iris technology itself is also a scheme of photographing and contrasting. If the object being photographed is not a human iris, but a fake iris image or even a 3D printed fake eyeball, the meaning of recognition is It will be lost, which is similar to the case where fingerprint recognition encounters artificial fake fingerprints.

Therefore, a new technical solution is needed to improve the safety of iris recognition.

Summary of the invention

The invention is based on the above problems, and proposes a new technical solution, which can improve the safety of iris recognition.

In view of this, an aspect of the present invention provides an iris recognition method for a terminal, comprising: acquiring a first iris image according to the received iris recognition command; and determining the first iris image and the terminal When the preset iris images are consistent, the iris image change indication information is sent; after the iris image change indication information is sent for a predetermined time, the second iris image is acquired; and the difference between the first iris image and the second iris image is detected. Whether the change effect corresponding to the iris image change indication information is consistent, for determining whether the iris recognition is successful according to the detection result.

In this technical solution, the iris recognition command may be any life that needs to acquire information of the terminal. Orders, such as unlock commands, SMS read commands, call answer commands, and so on. After receiving the iris recognition command, the first iris image may be acquired by the camera of the terminal to initially determine whether the first iris image is consistent with the preset iris image. If the image is consistent, the iris image is considered to be the iris of the user stored in the terminal. Image, and emit iris image change indication information, otherwise, stop red film recognition function. Then, the user can perform an action according to the prompt of the iris image change indication information. For example, the upper right corner of the screen of the terminal displays “Please look here”, and the user can turn the eyeball to view the position, and when the predetermined time is reached, it is determined that the time is available. By acquiring a stable iris image, the second iris image can be acquired through the camera of the terminal. Next, it is necessary to determine whether the difference between the first iris image and the second iris image is a change effect corresponding to the iris image change indication information, and if so, pass the iris recognition, otherwise the iris recognition is terminated. For example, after the user turns the eyeball to view the upper right corner of the screen of the terminal, the iris is offset to the upper right, that is, the acquired second iris image is shifted to the upper right relative to the first iris image, and at this time, if the second iris If the image is indeed shifted to the upper right, it means that the iris image does come from a real and effective user and can be recognized by the iris. Otherwise, the iris recognition is prohibited when the second iris image is not offset or the offset direction is not the upper right. To ensure the information security of the terminal. Through the above technical solution, the process of secondary identification is added on the basis of common iris recognition, and whether the iris image is from a real and reliable user can be determined according to the change effect of the iris image with the visual information, and the iris recognition and authentication is improved. Accuracy, to prevent illegal elements from using fake iris to steal important information of users, improve the security of user information, and enhance the anti-counterfeiting and anti-theft effects.

In the above technical solution, preferably, when it is determined that the first iris image is consistent with the preset iris image of the terminal, before the emitting the iris image change indication information, the method further includes: determining the first An authentication level of the source of the iris image; setting the change indication information corresponding to the authentication level of the source to the iris image change indication information.

In this technical solution, different authentication levels may be set for different users, and different authentication levels correspond to different change indication information, so that when the terminal determines that the first iris image is the iris image of the user of the terminal, The change indication information corresponding to the user's authentication level may be used as the iris image change indication information of the user. The higher the authentication level, the more complicated the change indication information needs to be set. Through the above technical solution, it can be set for different users. The same iris image change indication information can further hierarchically improve the security of the user information.

In the above technical solution, preferably, before the detecting whether the difference between the first iris image and the second iris image is consistent with the change effect corresponding to the iris image change indication information, the method further includes: detecting the Whether the first iris image and the iris information of the second iris image coincide with each other for detecting a difference between the first iris image and the second iris image when the iris information is coincident.

In this technical solution, it is first necessary to determine whether the iris information of the first iris image and the second iris image are consistent, that is, it is necessary to determine whether the owner of the first iris image and the second iris image is the same person, avoiding all The iris recognition error caused by the iris image shift or change is different, which improves the accuracy of iris recognition and the security of user information.

In the above technical solution, preferably, the iris image change indication information is: visual direction indication information; visual color indication information; or visual direction indication information and visual color indication information; wherein the visual direction The type of the indication information includes at least one of the following or a combination thereof: a text type, a picture type, an audio type, and a video type.

In this technical solution, the iris image change indication information may be visual direction indication information, or may be visual color indication information, or may be a combination of visual direction indication information and visual color indication information. Of course, it may also be Other instructions other than this are required. The visual direction indication information includes, but is not limited to, at least one of the following or a combination thereof: a text type (for example, a certain position of a screen of the terminal displays “Please look here”), a picture type (for example, a certain screen of the terminal) The location displays a picture), the audio type (for example, the terminal emits an audible prompt "Please look at the top right of the screen of the terminal"), the video type (for example, an animation is displayed at the upper right of the screen of the terminal), and the user can follow these instructions. The prompt of the information moves the line of sight, resulting in an offset of the iris image. Through the above technical solution, the appropriate iris image change indication information can be selected according to the actual needs of the user, thereby improving the user experience.

In the above technical solution, preferably, the detecting whether the difference between the first iris image and the second iris image is consistent with the change effect corresponding to the iris image change indication information, specifically comprising: detecting the second The direction of the iris image relative to the first iris image is Whether it is consistent with the indication direction of the visual direction indication information, wherein when the offset direction is consistent with the indication direction, determining to successfully pass the iris recognition; and/or detecting the second iris image relative to the Whether the pupil change of the first iris image coincides with the predetermined pupil change of the visual color indication information, wherein when the pupil change condition coincides with the predetermined pupil change condition, it is determined that the iris recognition is successful.

In this technical solution, it is not only possible to determine whether the iris image comes from a real and effective user by the offset of the iris image, but also whether the iris image is from a real effective user by the pupil change condition of the user. For example, after acquiring the first iris image, the terminal screen can be set to black, and the second iris image is acquired. Since the screen color is deepened, the user's pupil of the viewing screen is enlarged, and the user in the acquired second iris image is acquired. The pupil image changes, so when comparing the first iris image with the second iris image, if the pupil change of the second iris image is found to correspond to the predetermined pupil change corresponding to the visual color indication information (ie, viewing the black screen) In the same situation, it is determined that the two iris images detected are from real and effective users, allowing identification by iris, otherwise, iris recognition is not allowed. Through the above technical solution, it is possible to determine whether the iris image is from a real and reliable user according to different iris image change indication information, improve the accuracy of iris recognition and authentication, prevent illegal elements from using the forged iris to steal important information of the user, and improve user information. The security enhances the anti-counterfeiting and anti-theft effects.

In the above technical solution, preferably, the method further includes: setting the predetermined time according to the received setting command.

In the technical solution, the predetermined time is the interval between the first iris image and the second iris image, and only after a period of time can the second iris image be stabilized for collection, thereby enhancing the iris image acquisition. Accuracy further increases the accuracy and security of iris recognition and enhances the user experience.

Another aspect of the present invention provides an iris recognition system for a terminal, comprising: a first acquiring unit, acquiring a first iris image according to the received iris recognition command; and an indication information issuing unit, when determining the first iris When the image is consistent with the preset iris image of the terminal, the iris image change indication information is sent; the second acquiring unit acquires the second iris image after the iris image change indication information is sent for a predetermined time; the detecting unit detects the First iris map Whether the difference from the second iris image coincides with the change effect corresponding to the iris image change indication information, for determining whether the iris recognition is successful according to the detection result.

In this technical solution, the iris recognition command may be any command that needs to acquire information of the terminal, such as an unlock command, a short message read command, a call answer command, and the like. After receiving the iris recognition command, the first iris image may be acquired by the camera of the terminal to initially determine whether the first iris image is consistent with the preset iris image. If the image is consistent, the iris image is considered to be the iris of the user stored in the terminal. Image, and emit iris image change indication information, otherwise, stop red film recognition function. Then, the user can perform an action according to the prompt of the iris image change indication information. For example, the upper right corner of the screen of the terminal displays “Please look here”, and the user can turn the eyeball to view the position, and when the predetermined time is reached, it is determined that the time is available. By acquiring a stable iris image, the second iris image can be acquired through the camera of the terminal. Next, it is necessary to determine whether the difference between the first iris image and the second iris image is a change effect corresponding to the iris image change indication information, and if so, pass the iris recognition, otherwise the iris recognition is terminated. For example, after the user turns the eyeball to view the upper right corner of the screen of the terminal, the iris is offset to the upper right, that is, the acquired second iris image is shifted to the upper right relative to the first iris image, and at this time, if the second iris If the image is indeed shifted to the upper right, it means that the iris image does come from a real and effective user and can be recognized by the iris. Otherwise, the iris recognition is prohibited when the second iris image is not offset or the offset direction is not the upper right. To ensure the information security of the terminal. Through the above technical solution, the process of secondary identification is added on the basis of common iris recognition, and whether the iris image is from a real and reliable user can be determined according to the change effect of the iris image with the visual information, and the iris recognition and authentication is improved. Accuracy, to prevent illegal elements from using fake iris to steal important information of users, improve the security of user information, and enhance the anti-counterfeiting and anti-theft effects.

In the above technical solution, preferably, the method further includes: an authentication unit, when determining that the first iris image is consistent with the preset iris image of the terminal, determining, before the emitting the iris image change indication information, An authentication level of the source of the first iris image, and change indication information corresponding to the authentication level of the source is set as the iris image change indication information.

In this technical solution, different authentication levels can be set for different users, and different The authentication level corresponds to different change indication information, so that when the terminal determines that the first iris image is the iris image of the user of the terminal, the change indication information corresponding to the user's authentication level may be used as the iris image change of the user. Instructions. The higher the authentication level, the more complicated the change indication information needs to be set. Through the above technical solution, different iris image change indication information can be set for different users, and the security of the user information can be further hierarchically and hierarchically improved.

In the above technical solution, preferably, the detecting unit is further configured to: in the detecting whether a difference between the first iris image and the second iris image is consistent with a change effect corresponding to the iris image change indication information Detecting whether the iris information of the first iris image and the second iris image coincide with each other for detecting a difference between the first iris image and the second iris image when the iris information is consistent .

In this technical solution, the iris image change indication information may be visual direction indication information, or may be visual color indication information, or may be a combination of visual direction indication information and visual color indication information. Of course, it may also be Other instructions other than this are required. The visual direction indication information includes, but is not limited to, at least one of the following or a combination thereof: a text type (for example, a certain position of a screen of the terminal displays “Please look here”), a picture type (for example, a certain screen of the terminal) The location displays a picture), the audio type (for example, the terminal emits an audible prompt "Please look at the top right of the screen of the terminal"), the video type (for example, an animation is displayed at the upper right of the screen of the terminal), and the user can follow these instructions. The prompt of the information moves the line of sight, resulting in an offset of the iris image. Through the above technical solutions, a suitable rainbow can be selected according to the actual needs of the user. The film image change indication information improves the user experience.

In the above technical solution, preferably, the detecting unit is configured to: detect whether an offset direction of the second iris image relative to the first iris image is consistent with an indication direction of the visual direction indication information, Wherein, when the offset direction coincides with the indication direction, determining whether the iris change is detected by the iris, and/or detecting whether the pupil change of the second iris image relative to the first iris image is related to the visual color The predetermined pupil change of the indication information is consistent, wherein the identification by the iris is determined when the pupil change condition coincides with the predetermined pupil change condition.

In the above technical solution, preferably, the method further includes: a time setting unit that sets the predetermined time according to the received setting command.

A further aspect of the present invention provides a terminal, comprising the iris recognition system according to any one of the above, which has the same technical effects as the iris recognition system according to any of the above, and will not be further described herein.

Through the above technical solution, the process of secondary identification is added on the basis of common iris recognition, and whether the iris image is from a real and reliable user can be determined according to the change effect of the iris image with the visual information, and the iris recognition and authentication is improved. Accuracy, to prevent illegal elements from using fake iris to steal important information of users, improve the security of user information, and enhance the anti-counterfeiting and anti-theft effects.

DRAWINGS

1 shows a flow chart of an iris recognition method in accordance with one embodiment of the present invention;

2 shows a block diagram of an iris recognition system in accordance with one embodiment of the present invention;

Figure 3 shows a block diagram of a terminal in accordance with one embodiment of the present invention;

4 shows a schematic diagram of a terminal having an iris recognition system in accordance with one embodiment of the present invention;

5 to 7 are schematic views showing the iris recognition performed by the terminal shown in Fig. 4.

detailed description

The present invention will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a full understanding of the invention, but the invention may be practiced otherwise than as described herein. Limitations of the embodiments.

FIG. 1 shows a flow chart of an iris recognition method in accordance with one embodiment of the present invention.

As shown in FIG. 1, an iris recognition method according to an embodiment of the present invention is used for a terminal, including:

Step 102: Acquire a first iris image according to the received iris recognition command.

Step 104: When it is determined that the first iris image coincides with the preset iris image of the terminal, the iris image change indication information is issued.

Step 106: After the iris image change indication information is sent for a predetermined time, the second iris image is acquired.

Step 108: Detect whether the difference between the first iris image and the second iris image is consistent with the change effect corresponding to the iris image change indication information, so as to determine whether the iris recognition is successful according to the detection result.

In the above technical solution, preferably, before step 104, the method further includes: determining an authentication level of the source of the first iris image; and setting the change indication information corresponding to the source of the authentication level as the iris image change indication information.

In this technical solution, different authentication levels may be set for different users, and different authentication levels correspond to different change indication information, so that when the terminal determines that the first iris image is confirmed When the iris image of the user of the terminal is used, the change indication information corresponding to the user's authentication level may be used as the iris image change indication information of the user. The higher the authentication level, the more complicated the change indication information needs to be set. Through the above technical solution, different iris image change indication information can be set for different users, and the security of the user information can be further hierarchically and hierarchically improved.

In the above technical solution, preferably, before step 108, the method further includes: detecting whether the iris information of the first iris image and the second iris image are consistent, for the first iris image and the second iris when the iris information is consistent The difference in image is detected.

In the above technical solution, preferably, the iris image change indication information is: visual direction indication information; visual color indication information; or visual direction indication information and visual color indication information; wherein the visual direction indication information is of a type Including at least one of the following or a combination thereof: text type, picture type, audio type, video type.

In the above technical solution, preferably, the step 108 specifically includes: detecting whether an offset direction of the second iris image relative to the first iris image is one of an indication direction of the visual direction indication information. </ RTI> wherein, when the offset direction coincides with the indicated direction, determining to successfully pass the iris recognition; and/or detecting whether the pupil change of the second iris image relative to the first iris image is related to the predetermined pupil change of the visual color indication information Consistently, when the pupil change is consistent with the predetermined pupil change, it is determined that the iris recognition is successful.

In this technical solution, it is not only possible to determine whether the iris image comes from a real and effective user by the offset of the iris image, but also whether the iris image is from a real effective user by the through hole variation of the user. For example, after acquiring the first iris image, the terminal screen can be set to black, and the second iris image is acquired. Since the screen color is deepened, the user's pupil of the viewing screen is enlarged, and the user in the acquired second iris image is acquired. The pupil image changes, so when comparing the first iris image with the second iris image, if the pupil change of the second iris image is found to correspond to the predetermined pupil change corresponding to the visual color indication information (ie, viewing the black screen) In the same situation, it is determined that the two iris images detected are from real and effective users, allowing identification by iris, otherwise, iris recognition is not allowed. Through the above technical solution, it is possible to determine whether the iris image is from a real and reliable user according to different iris image change indication information, improve the accuracy of iris recognition and authentication, prevent illegal elements from using the forged iris to steal important information of the user, and improve user information. The security enhances the anti-counterfeiting and anti-theft effects.

In the above technical solution, preferably, the method further includes: setting a predetermined time according to the received setting command.

2 shows a block diagram of an iris recognition system in accordance with one embodiment of the present invention.

As shown in FIG. 2, the iris recognition system 200 according to an embodiment of the present invention includes: a first acquisition unit 202, which acquires a first iris image according to the received iris recognition command; and an indication information issuing unit 204, when determining the first When the iris image is consistent with the preset iris image of the terminal, the iris image change indication information is sent; the second acquiring unit 206 acquires the second iris image after the iris image change indication information is sent for a predetermined time; the detecting unit 208 detects the first rainbow Whether the difference between the film image and the second iris image is consistent with the change effect corresponding to the iris image change indication information, for determining whether the iris recognition is successful according to the detection result.

In the above technical solution, preferably, the method further includes: the authenticating unit 210, when determining that the first iris image is consistent with the preset iris image of the terminal, determining the source of the first iris image before emitting the iris image change indication information The authentication level and the change indication information corresponding to the source's authentication level are set as iris image change indication information.

In the above technical solution, preferably, the detecting unit 208 is further configured to: before detecting whether the difference between the first iris image and the second iris image is consistent with the change effect corresponding to the iris image change indication information, detecting the first iris image and the first Whether the iris information of the two iris images is consistent for detecting the difference between the first iris image and the second iris image when the iris information is consistent.

In the above technical solution, preferably, the detecting unit 208 is specifically configured to: detect the second iris Whether the offset direction of the image with respect to the first iris image coincides with the direction indicated by the visual direction indication information, wherein when the offset direction coincides with the indication direction, determining by iris recognition, and/or detecting the second iris image relative to Whether the pupil change of the first iris image coincides with the predetermined pupil change of the visual color indication information, wherein the identification by the iris is determined when the pupil change condition coincides with the predetermined pupil change.

In the above technical solution, preferably, the method further includes: a time setting unit 212, configured to set a predetermined time according to the received setting command.

Figure 3 shows a block diagram of a terminal in accordance with one embodiment of the present invention.

As shown in FIG. 3, a terminal 300 according to an embodiment of the present invention includes an iris recognition system 302, wherein the iris recognition system 302 is equivalent to the iris recognition system 200 shown in FIG. 2, and therefore, the iris recognition system 302 has the above The same technical effects of the iris recognition system 200 described in any one of the above are not described herein.

4 through 7 illustrate schematic diagrams of terminals having an iris recognition system in accordance with one embodiment of the present invention.

When the user activates the iris recognition function of the mobile phone, the iris recognition sensor and the display screen of the mobile phone are simultaneously activated, and the human eye moves the line of sight according to the changed picture on the screen. At this time, the iris image of the human eye is captured by the iris sensing camera according to the image. The transformation determines the trajectory of the movement of the eyeball and the order of change of the pupil size, thereby determining whether the current iris image is from the user himself.

As shown in FIG. 4, the embodiment is applied to a mobile phone having an iris sensor and a display screen, wherein the iris sensor and the display screen are located on the same side of the mobile phone, and when the user looks at the display screen from the front, the iris sensor can capture the iris of the user. information.

As shown in FIG. 5, when the user activates the iris recognition function, the information shown in FIG. 5 is displayed on the screen of the mobile phone. At this time, the iris sensor captures the first iris image of the user, which is basically consistent with the common iris recognition system. Then, the first iris image is compared with the standard iris image preset by the user. If they are consistent, the iris recognition is successful; if the first iris image is inconsistent with the iris image preset by the user, the iris recognition fails.

As shown in FIG. 6, after the user's iris recognition is successful, it is further confirmed whether the iris image is actually from the user itself, the mobile phone screen displays the information shown in FIG. 6, and the user is required to observe the text description in the upper right corner of FIG. 6, at this time, The user's eye direction moves to the upper right, and the iris sensor captures the user's second iris image. If the second iris image is consistent with the iris information of the first iris image, and the eyeball position is different from the first iris image and is shifted to the upper right, the user identification is successful; if the second iris image and the first iris image The iris information is inconsistent, or the eyeball is not at the upper right, and the identification fails.

When the second iris image is judged, a third discriminating process can be added. As shown in FIG. 7, the mobile phone screen displays a full black picture, and the user is required to observe the text description in the lower left corner of the picture, and the user's eye direction should be downward left. The square moves, and, because the screen is completely black, the user's pupil diameter is enlarged, and the iris sensor captures the user's third iris image. If the third iris image is consistent with the iris information of the first iris image, and the eyeball position and the pupil change are consistent with the expectation, the user identity is determined to be successful; if the third iris image and the iris image of the first iris image, the eyeball movement position If the pupil changes, if any one is inconsistent with the expectation, then the user identity is judged. Don't fail.

Below, the process of the above several judgments is further explained:

After the user activates the iris recognition, the display interval time between the first iris image and the second iris image, the second iris image, and the third iris image may be set, for example, the display interval time may be set to 3 seconds. .

In addition, the determination of the user identity of the second iris image and the third iris image may be adjusted according to user requirements. For example, when the user's authentication level is low, only one of the types of identification may be used; When the user's authentication level is high, dual identity can be used.

The technical solution of the present invention is described in detail above with reference to the accompanying drawings. By the technical solution of the present invention, a process of secondary identification is added on the basis of common iris recognition, and the iris can be determined according to the change effect of the iris image with the visual information. Whether the image comes from a real and reliable user, improves the accuracy of iris recognition and authentication, prevents illegal elements from using the forged iris to steal important information of the user, improves the security of the user information, and enhances the anti-counterfeiting and anti-theft effects.

In the present invention, the terms "first", "second", and "third" are used for the purpose of description only, and are not to be understood as indicating or implying relative importance, and can be used by one of ordinary skill in the art The specific meaning of the above terms in the present invention is understood in the specific case.

In the description of the present specification, the description of the term "one embodiment" or the like means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present invention. In the present specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

An iris recognition method for a terminal, comprising:

Obtaining a first iris image according to the received iris recognition command;

When it is determined that the first iris image is consistent with the preset iris image of the terminal, emitting iris image change indication information;

Acquiring the second iris image after the iris image change indication information is sent for a predetermined time;

Detecting whether the difference between the first iris image and the second iris image is consistent with the change effect corresponding to the iris image change indication information, to determine whether the iris recognition is successful according to the detection result.
The iris recognition method according to claim 1, wherein the determining, when the first iris image is consistent with the preset iris image of the terminal, before the emitting the iris image change indication information, :

Determining an authentication level of a source of the first iris image;

The change indication information corresponding to the authentication level of the source is set as the iris image change indication information.
The iris recognition method according to claim 2, wherein before the detecting whether the difference between the first iris image and the second iris image is consistent with the change effect corresponding to the iris image change indication information, Also includes:

Detecting whether the iris information of the first iris image and the second iris image are consistent, so as to detect a difference between the first iris image and the second iris image when the iris information is consistent.
The iris recognition method according to claim 3, wherein the iris image change indication information is:

Visual direction indication information;

Visual color indication information; or

Visual direction indication information and visual color indication information;

The type of the visual direction indication information includes at least one of the following or a combination thereof:

Text type, image type, audio type, video type.
The iris recognition method according to claim 4, wherein the detecting whether the difference between the first iris image and the second iris image is consistent with the change effect corresponding to the iris image change indication information, specifically including :

Detecting whether an offset direction of the second iris image with respect to the first iris image is consistent with an indication direction of the visual direction indication information, wherein when the offset direction is consistent with the indication direction, determining Successfully identified by iris; and/or

Detecting whether a pupil change of the second iris image relative to the first iris image is consistent with a predetermined pupil change of the visual color indication information, wherein the pupil change condition and the predetermined pupil change condition When consistent, it is determined that the iris is successfully identified.
The iris recognition method according to any one of claims 1 to 5, further comprising:

The predetermined time is set according to the received setting command.
An iris recognition system for a terminal, comprising:

The first acquiring unit acquires the first iris image according to the received iris recognition command;

The indication information issuance unit, when determining that the first iris image is consistent with the preset iris image of the terminal, emitting iris image change indication information;

The second acquiring unit acquires the second iris image after the iris image change indication information is sent for a predetermined time;

The detecting unit detects whether the difference between the first iris image and the second iris image is consistent with the change effect corresponding to the iris image change indication information, so as to determine whether the iris recognition is successful according to the detection result.
The iris recognition system according to claim 7, further comprising:

An authentication unit, when determining that the first iris image is consistent with a preset iris image of the terminal, determining an authentication of a source of the first iris image before the isating the iris image change indication information a level, and change indication information corresponding to the authentication level of the source is set to the iris image change indication information.
The iris recognition system according to claim 8, wherein said detecting unit Also used for:

Detecting the first iris image and the second iris image before detecting whether the difference between the first iris image and the second iris image is consistent with a change effect corresponding to the iris image change indication information Whether the iris information is consistent, and when the iris information is consistent, the difference between the first iris image and the second iris image is detected.
The iris recognition system according to claim 9, wherein the iris image change indication information is:

Visual direction indication information;

Visual color indication information; or

Visual direction indication information and visual color indication information;

The type of the visual direction indication information includes at least one of the following or a combination thereof:

Text type, image type, audio type, video type.
The iris recognition system according to claim 10, wherein the detecting unit is specifically configured to:

Detecting whether an offset direction of the second iris image with respect to the first iris image is consistent with an indication direction of the visual direction indication information, wherein when the offset direction is consistent with the indication direction, determining Identifying by the iris, and/or detecting whether the pupil change of the second iris image relative to the first iris image is consistent with a predetermined pupil change of the visual color indication information, wherein when the pupil changes Identification by iris is determined in accordance with the predetermined pupil change.
The iris recognition system according to any one of claims 7 to 11, further comprising:

The time setting unit sets the predetermined time according to the received setting command.
A terminal characterized by comprising the iris recognition system according to any one of claims 7 to 12.