CN107527019B - Unlocking control method and related product - Google Patents
Unlocking control method and related product Download PDFInfo
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- CN107527019B CN107527019B CN201710633484.7A CN201710633484A CN107527019B CN 107527019 B CN107527019 B CN 107527019B CN 201710633484 A CN201710633484 A CN 201710633484A CN 107527019 B CN107527019 B CN 107527019B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/70—Multimodal biometrics, e.g. combining information from different biometric modalities
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72463—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions to restrict the functionality of the device
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Abstract
The embodiment of the invention discloses an unlocking control method and a related product, which comprise the following steps: determining the integrity of the face; acquiring first information of a face image and second information of an iris image according to the integrity of the face; and executing unlocking operation when the first information and the second information are successfully matched with the corresponding biological template. The embodiment of the invention is beneficial to improving the adaptability, the safety and the success rate of the unlocking operation of the mobile terminal.
Description
Technical Field
The invention relates to the technical field of mobile terminals, in particular to an unlocking control method and a related product.
Background
With the popularization and application of smart phones in a large number, smart phones can support more and more applications and have more and more powerful functions, and smart phones develop towards diversification and individuation and become indispensable electronic products in user life.
At present, most of smart phones adopt biological information unlocking schemes, such as face unlocking, iris unlocking and the like, the security coefficient of the biological information unlocking schemes seriously affects the security of the smart phone, and due to the activity of a human body, when a face or an iris is obtained, data acquisition is incomplete probably due to dynamic activity of a user, and at this time, how to ensure accurate and safe unlocking of the biological information unlocking schemes becomes a problem which needs to be rigorously solved.
Disclosure of Invention
The embodiment of the invention provides an unlocking control method and a related product, aiming at improving the adaptability, safety and success rate of unlocking operation of a mobile terminal.
In a first aspect, an embodiment of the present invention provides a mobile terminal, including a processor, a face image acquisition device connected to the processor, an iris image acquisition device, and a memory, wherein,
the face image acquisition module is used for acquiring a face image according to the face integrity;
the iris image acquisition device is used for acquiring an iris image;
the memory is used for storing the biological template;
the processor is used for acquiring first information of a face image and second information of an iris image, and executing unlocking operation when the first information and the second information are successfully matched with the corresponding biological templates.
In a second aspect, an embodiment of the present invention provides an unlocking control method, including:
determining the integrity of the face;
acquiring first information of a face image and second information of an iris image according to the integrity of the face;
and executing unlocking operation when the first information and the second information are successfully matched with the corresponding biological template.
In a third aspect, an embodiment of the present invention provides a mobile terminal, including a processing unit and a collecting unit,
the processing unit is used for determining the integrity of the human face; the acquisition unit is used for acquiring first information of a face image and second information of an iris image according to the integrity of the face; and executing an unlocking operation when the first information and the second information are successfully matched with the corresponding biological templates.
In a fourth aspect, an embodiment of the present invention provides a mobile terminal, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing steps of any of the methods in the second aspect of the present invention.
In a fifth aspect, the present invention provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program enables a computer to perform some or all of the steps described in any one of the methods in the second aspect of the present invention, and the computer includes a mobile terminal.
In a sixth aspect, the present invention provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the steps described in any one of the methods according to the second aspect of the embodiments of the present invention. The computer program product may be a software installation package, the computer comprising a mobile terminal.
It can be seen that, in the embodiment of the present invention, the mobile terminal first determines the integrity of the face; secondly, acquiring first information of a face image and second information of an iris image according to the integrity of the face; and finally, when the first information and the second information are successfully matched with the corresponding biological templates, executing unlocking operation. Therefore, the mobile terminal determines the first information of the acquired face image and the second information of the iris image according to the integrity, determines the information quantity included by the first information and the information quantity included by the second information according to the integrity, prevents the situation that the face has angle deflection to cause small integrity and unsuccessful matching, is favorable for improving the adaptability and the success rate of unlocking operation of the mobile terminal under different face angles, can ensure that the acquired information quantity is improved when the integrity is small, and is favorable for improving the safety of the mobile terminal.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention;
fig. 2A is a schematic flowchart of an unlocking control method according to an embodiment of the present invention;
fig. 2B is a schematic diagram of first type information and second type information of a face image of a mobile terminal according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of another unlocking control method disclosed in the embodiment of the present invention;
FIG. 4 is a schematic flow chart illustrating another unlocking control method disclosed in the embodiments of the present invention;
fig. 5 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention;
fig. 6 is a block diagram of functional units of a mobile terminal according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The Mobile terminal according to the embodiment of the present invention may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, and various forms of User Equipment (UE), Mobile Stations (MS), terminal devices (terminal device), and the like, which have wireless communication functions. For convenience of description, the above-mentioned devices are collectively referred to as a mobile terminal.
The mobile terminal described in the embodiment of the invention is provided with an iris image acquisition device and a face image acquisition device, wherein the iris image acquisition device can comprise an infrared light source and an iris camera, the infrared light source is used for emitting infrared light to irradiate the iris of a user to form reflected light, the iris camera is used for acquiring the reflected light to form an iris image, and the face image acquisition device can be a universal camera module, such as a front camera. The following describes embodiments of the present invention in detail.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a mobile terminal 100 according to an embodiment of the present invention, where the mobile terminal 100 includes: the mobile terminal comprises a shell, a touch display screen, a main board, a battery and an auxiliary board, wherein the main board is provided with an infrared light source 21, an iris camera 22, a front camera 23, a processor 110, a memory 120, a camera driving device 130, a SIM card slot and the like, the auxiliary board is provided with a vibrator, an integrated sound cavity and a VOOC flash charging interface, the infrared light source 21 and the iris camera 22 form an iris image acquisition device of the mobile terminal 100, the front camera 23 forms a human face image acquisition device of the mobile terminal 100, and the front camera 23,
the processor 110 is configured to determine the integrity of the face;
the processor 110 is configured to acquire first information of a face image and second information of an iris image according to the integrity of the face;
the face image acquisition module is used for acquiring a face image according to the face integrity; the iris image acquisition device is used for acquiring an iris image; the processor 110 performs operations such as preprocessing and feature point extraction on the face image and the iris image to obtain the first information and the second information.
The infrared light source 21 in the iris image capturing device is configured to emit infrared light to illuminate the iris of the user to form reflected light, the iris camera 22 is configured to capture the reflected light to form an iris image, and the processor 110 obtains the iris image, and then performs processing procedures such as iris image quality evaluation, iris region positioning (including coarse positioning and fine positioning), iris preprocessing, iris feature point extraction, and iris template generation on the iris image to obtain the second information.
The processor 110 is configured to execute an unlocking operation when the first information and the second information are successfully matched with the corresponding biometric templates.
The memory 120 is used for storing the biological template.
The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal by using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 120 and calling data stored in the memory 120, thereby integrally monitoring the mobile terminal. Alternatively, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 980.
The memory 120 may be used to store software programs and modules, and the processor 110 executes various functional applications and data processing of the mobile terminal by operating the software programs and modules stored in the memory 120. The memory 120 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function, and the like; the storage data area may store data created according to the use of the mobile terminal, and the like. Further, the memory 120 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
It can be seen that, in the embodiment of the present invention, the mobile terminal first determines the integrity of the face; secondly, acquiring first information of a face image and second information of an iris image according to the integrity of the face; and finally, when the first information and the second information are successfully matched with the corresponding biological templates, executing unlocking operation. Therefore, the mobile terminal determines the first information of the acquired face image and the second information of the iris image according to the integrity, determines the information quantity included by the first information and the information quantity included by the second information according to the integrity, prevents the situation that the face has angle deflection to cause small integrity and unsuccessful matching, is favorable for improving the adaptability and the success rate of unlocking operation of the mobile terminal under different face angles, can ensure that the acquired information quantity is improved when the integrity is small, and is favorable for improving the safety of the mobile terminal.
In one possible example, in terms of determining the integrity of the face, the processor 110 is specifically configured to: when an event to be unlocked is detected, determining the number of preset feature points in a preview image; and is configured to query a mapping relationship between the number of the preset feature points and the integrity stored in the memory 120 according to the number of the preset feature points, and determine the integrity corresponding to the number of the preset feature points.
In one possible example, in terms of acquiring the first information of the face image and the second information of the iris image according to the integrity of the face, the processor 110 is specifically configured to: when the integrity of the face is larger than a preset threshold value, acquiring first information of the face image and second information of the iris image, wherein the first information comprises first type information of the face image, and the second information comprises the first type information of the iris image; or, when the integrity of the face is less than or equal to a preset threshold, acquiring first information of the face image and second information of the iris image, where the first information includes the first type information and the second type information of the face image, and the second information includes the first type information of the iris image.
In a possible example, the integrity of the face is less than or equal to the preset threshold, and before the processor 110 successfully matches the first information and the second information with the corresponding biometric templates, the processor is further configured to: acquiring a preset first type face template and a preset iris template stored in the memory 120; and determining the area of the preset feature point in the preview image; and a preset second type face template stored in the memory 120 corresponding to the region is obtained.
In a possible example, the integrity of the human face is less than or equal to the preset threshold, and in the event that the matching of the first information and the second information with the corresponding biometric templates stored in the memory 120 is successful, the processor 110 is specifically configured to: determining a first matching degree threshold value of the first type information of the face image, a second matching degree threshold value of the first type information of the iris image and a third matching degree threshold value of the second type information of the face image according to the integrity of the face image; and a third operation for performing a first operation, a second operation and a third operation in parallel, wherein the first operation is to match the first type information of the face image with the preset first type face template stored in the memory 120, the second operation is to match the first type information of the iris image with the preset iris template stored in the memory 120, and the third operation is to match the second type information of the face image with the preset second type face template stored in the memory 120; and executing an unlocking operation when the threshold of the degree of matching of the first operation is greater than or equal to the first threshold of the degree of matching, the threshold of the degree of matching of the second operation is greater than or equal to the second threshold of the degree of matching, and the threshold of the degree of matching of the third operation is greater than or equal to the third threshold of the degree of matching.
Referring to fig. 2A, fig. 2A is a schematic flowchart of an unlocking control method according to an embodiment of the present invention, which is applied to a mobile terminal, and as shown in the figure, the unlocking control method includes:
s201, the mobile terminal determines the integrity of the face;
in one possible example, the determining the integrity of the face includes:
when an event to be unlocked is detected, determining the number of preset feature points in a preview image;
and inquiring the mapping relation between the number of the preset feature points and the integrity according to the number of the preset feature points, and determining the integrity corresponding to the number of the preset feature points.
And the integrity of the human face is the integrity of the human face image in the preview image within the view finding range of the mobile terminal.
The preview image may be a preview image obtained by a front camera of the mobile terminal, or a preview image obtained by a rear camera of the mobile terminal.
The preset feature points include conventional feature points and personalized feature points, the conventional feature points are general feature points required by a face recognition technology, such as sizes, positions, distances and the like of facial image facial contour like eyes, nose wings, mouth corners, ears and the like, and the personalized feature points are feature points of a part of faces, such as feature points like birthmarks, black nevi, scars and the like.
The mapping relationship between the number and the integrity of the preset feature points may be set by a professional before the mobile terminal leaves a factory, or may be a mapping relationship suitable for the total amount of the user feature points, which is established by the mobile terminal through analyzing the feature points of the face when the face template is prestored by the user, and the feature points are set as the preset feature points.
The event to be unlocked may be, for example, a desktop event to be unlocked, an application event to be unlocked, a file event to be unlocked, or the like, which is not limited herein. The event to be unlocked by the desktop refers to an event to be unlocked for locking the desktop, the event to be unlocked by the application refers to an event to be unlocked for a specific operation of the application, such as application starting, application deleting and the like, and the event to be unlocked by the file refers to an event to be unlocked for the file, such as an event to be unlocked for a target file.
The trigger condition for detecting the event to be unlocked by the mobile terminal may be that the mobile terminal detects the event to be unlocked of the application to be unlocked, where the event to be unlocked may be specifically triggered by touch operation, pressing operation, voice operation, and the like of the user, for example, for the mobile terminal in the off-screen standby state, pressing a power key or a Home key triggers the event to be unlocked, where the trigger condition is not limited.
In this example, the mobile terminal determines the integrity of the face according to the number of the preset feature points in the preview image by using an inquiry method, instead of through complicated calculation, so that the speed and convenience of unlocking control of the mobile terminal are improved, the determined integrity of the face can indicate that the torsion angle of the face is determined, and the user feature point data and the corresponding biological template can be rapidly acquired in the later period.
S202, the mobile terminal collects first information of a face image and second information of an iris image according to the integrity of the face;
the first information of the face image is conventional characteristic point information and/or personalized characteristic point information of the face image, and the second information of the iris image is conventional characteristic point information of the iris image.
In one possible example, the acquiring the first information of the face image and the second information of the iris image according to the integrity of the face includes:
when the integrity of the face is larger than a preset threshold value, acquiring first information of the face image and second information of the iris image, wherein the first information comprises first type information of the face image, and the second information comprises the first type information of the iris image; or the like, or, alternatively,
when the integrity of the face is smaller than or equal to a preset threshold value, acquiring first information of the face image and second information of the iris image, wherein the first information comprises the first type information and the second type information of the face image, and the second information comprises the first type information of the iris image.
As shown in fig. 2B, the first type of information is the conventional feature point information, such as the size, position, distance, and other feature points of the facial image such as eyes, nose wings, mouth corners, ears, and the like, and the second type of information is the personalized feature point information, such as moles, scars, and other feature points.
The first information and the second information are information which can be acquired by the current integrity, namely the current face angle.
When the integrity of the face is greater than a preset threshold, the integrity of the face is higher, the number of the preset feature points which can be acquired by the mobile terminal is larger, and the mobile terminal can only acquire the first type information of the face image to meet the security requirement of the mobile terminal; when the integrity of the face is smaller than a preset threshold value, the integrity of the face is low, and the torsion angle of the face is large, so that in order to ensure the safety of the mobile terminal and achieve the matching degree of unlocking control, the mobile terminal acquires the first type information and the second type information of the face image, and personalized feature points of the face are increased.
Therefore, in the example, the mobile terminal determines the acquisition strategies of the face image and the iris image according to the integrity of the face, only acquires the conventional feature points when the integrity is high, so that the effective unlocking of the mobile terminal is ensured, and the personalized feature points are added when the integrity is low, so that the safety of unlocking control is ensured.
S203, the mobile terminal performs an unlocking operation when the first information and the second information are successfully matched with the corresponding biometric templates.
The corresponding biological template comprises a pre-stored conventional face template and an iris template, the face template is matched with the first type information of the face image, the iris template is matched with the first type information of the iris image, and the corresponding biological template further comprises a pre-stored personalized characteristic information template which is matched with the second type information of the face image.
The mobile terminal acquires the personalized feature points of the face while prestoring a conventional face template and an iris template, and forms and prestores a personalized feature information template of a face image.
It can be seen that, in the embodiment of the present invention, the mobile terminal first determines the integrity of the face; secondly, acquiring first information of a face image and second information of an iris image according to the integrity of the face; and finally, when the first information and the second information are successfully matched with the corresponding biological templates, executing unlocking operation. Therefore, the mobile terminal determines the first information of the acquired face image and the second information of the iris image according to the integrity, determines the information quantity included by the first information and the information quantity included by the second information according to the integrity, prevents the situation that the face has angle deflection to cause small integrity and unsuccessful matching, is favorable for improving the adaptability and the success rate of unlocking operation of the mobile terminal under different face angles, can ensure that the acquired information quantity is improved when the integrity is small, and is favorable for improving the safety of the mobile terminal.
In a possible example, the integrity of the face is less than or equal to the preset threshold, and before the unlocking operation is performed when the matching of the first information and the second information with the corresponding biometric template is successful, the method further includes:
acquiring a preset first type face template and a preset iris template;
determining the area of the preset feature points in the preview image;
and acquiring a preset second type face template corresponding to the region.
The first type face template is a conventional face template, and the second type face template is an individualized characteristic information template.
The personalized feature information template may be stored according to regions, and the face region division may be performed by the mobile terminal according to the position of the personalized feature information of the face, for example, a black mole on the forehead as shown in fig. 2B, and a scar on the right cheek is divided into different regions.
As can be seen, in this example, the mobile terminal presets the second face template according to the region of the personalized feature point, and when the second type information is matched, only the second face template needs to be matched with the template of the corresponding region, which is beneficial to improving the unlocking matching speed.
In a possible example, the integrity of the face is less than or equal to the preset threshold, and when the matching of the first information and the second information with the corresponding biometric template is successful, performing an unlocking operation includes:
determining a first matching degree threshold value of the first type information of the face image, a second matching degree threshold value of the first type information of the iris image and a third matching degree threshold value of the second type information of the face image according to the integrity of the face image;
executing a first operation, a second operation and a third operation in parallel, wherein the first operation is to match first type information of the face image with the preset first type face template, the second operation is to match first type information of the iris image with the preset iris template, and the third operation is to match second type information of the face image with the preset second type face template;
and executing unlocking operation when the matching degree threshold value of the first operation is greater than or equal to the first matching degree threshold value, the matching degree threshold value of the second operation is greater than or equal to the second matching degree threshold value, and the matching degree threshold value of the third operation is greater than or equal to the third matching degree threshold value.
The implementation manner of the mobile terminal executing the unlocking operation may be to switch the current state of the mobile terminal to an unlocking state, where the current state includes a screen locking state, a disabled state, and the like, and is not limited here.
When the integrity of the face is smaller than or equal to the preset threshold, the first matching degree threshold can be set to be high when the integrity of the face is high, the second matching degree threshold is low, the third matching degree threshold is low, the first matching degree threshold can be set to be low when the integrity of the face is low, the second matching degree threshold is high, and the third matching degree threshold is high, so that each matching degree threshold is adapted to the integrity of the face, namely, the preset feature points which can be obtained currently are adapted.
It can be seen that, in this example, the mobile terminal determines the matching degree threshold according to the integrity of the face image, and performs the unlocking operation according to the matching degree threshold, which is beneficial to improving the matching fineness and flexibility of the mobile terminal while ensuring the security of the mobile terminal, and the first operation, the second operation and the third operation are performed in parallel instead of in series, which is beneficial to improving the speed of unlocking control of the mobile terminal.
Referring to fig. 3, fig. 3 is a flowchart illustrating an unlocking control method according to an embodiment of the present invention, and the method is applied to a mobile terminal. As shown in the figure, the unlocking control method includes:
s301, when the mobile terminal detects an event to be unlocked, determining the number of preset feature points in the preview image.
And S302, the mobile terminal inquires the mapping relation between the number of the preset feature points and the integrity according to the number of the preset feature points, and determines the integrity corresponding to the number of the preset feature points.
And S303, when the integrity of the face is greater than a preset threshold, the mobile terminal acquires first information of the face image and second information of the iris image, wherein the first information comprises first type information of the face image, and the second information comprises the first type information of the iris image.
S304, the mobile terminal obtains a preset first type face template and a preset iris template.
S305, the mobile terminal determines a first matching degree threshold value of the first type information of the face image and a second matching degree threshold value of the first type information of the iris image according to the integrity of the face image.
S306, the mobile terminal executes the first operation and the second operation in parallel.
The first operation is to match the first type information of the face image with the preset first type face template, and the second operation is to match the first type information of the iris image with the preset iris template.
S307, the mobile terminal performs an unlocking operation when the matching degree threshold of the first operation is greater than or equal to the first matching degree threshold, and the matching degree threshold of the second operation is greater than or equal to the second matching degree threshold.
It can be seen that, in the embodiment of the present invention, the mobile terminal first determines the integrity of the face; secondly, acquiring first information of a face image and second information of an iris image according to the integrity of the face; and finally, when the first information and the second information are successfully matched with the corresponding biological templates, executing unlocking operation. Therefore, the mobile terminal determines the first information of the acquired face image and the second information of the iris image according to the integrity, determines the information quantity included by the first information and the information quantity included by the second information according to the integrity, prevents the situation that the face has angle deflection to cause small integrity and unsuccessful matching, is favorable for improving the adaptability and the success rate of unlocking operation of the mobile terminal under different face angles, can ensure that the acquired information quantity is improved when the integrity is small, and is favorable for improving the safety of the mobile terminal.
In addition, the mobile terminal determines the acquisition strategy of the face image and the iris image according to the integrity of the face, only conventional characteristic points are acquired when the integrity is high, effective unlocking of the mobile terminal is guaranteed, meanwhile, different matching degree thresholds are determined according to the integrity of the face image, unlocking operation is executed through the matching degree thresholds, the mobile terminal is guaranteed in safety, meanwhile, fineness and flexibility of matching of the mobile terminal are improved, the first operation and the second operation are executed in parallel, the serial operation is not performed, and the speed of unlocking control of the mobile terminal is improved.
Referring to fig. 4, please refer to fig. 4 in accordance with the embodiment shown in fig. 2A, where fig. 4 is a flowchart illustrating an unlocking control method according to an embodiment of the present invention, and is applied to a mobile terminal. As shown in the figure, the unlocking control method includes:
s401, when the mobile terminal detects an event to be unlocked, determining the number of preset feature points in the preview image.
S402, the mobile terminal inquires the mapping relation between the number of the preset feature points and the integrity according to the number of the preset feature points, and determines the integrity corresponding to the number of the preset feature points.
And S403, when the integrity of the face is less than or equal to a preset threshold, the mobile terminal collects first information of the face image and second information of the iris image, wherein the first information comprises the first type information and the second type information of the face image, and the second information comprises the first type information of the iris image.
S404, the mobile terminal obtains a preset first type face template and a preset iris template.
S405, the mobile terminal determines the area of the preset feature point in the preview image.
And S406, the mobile terminal acquires a preset second type face template corresponding to the area.
S407, the mobile terminal determines a first matching degree threshold value of the first type information of the face image, a second matching degree threshold value of the first type information of the iris image and a third matching degree threshold value of the second type information of the face image according to the integrity of the face image.
S408, the mobile terminal performs the first operation, the second operation and the third operation in parallel.
The first operation is to match the first type information of the face image with the preset first type face template, the second operation is to match the first type information of the iris image with the preset iris template, and the third operation is to match the second type information of the face image with the preset second type face template.
S409, when the matching degree threshold of the first operation is greater than or equal to the first matching degree threshold, the matching degree threshold of the second operation is greater than or equal to the second matching degree threshold, and the matching degree threshold of the third operation is greater than or equal to the third matching degree threshold, the mobile terminal performs an unlocking operation.
It can be seen that, in the embodiment of the present invention, the mobile terminal first determines the integrity of the face; secondly, acquiring first information of a face image and second information of an iris image according to the integrity of the face; and finally, when the first information and the second information are successfully matched with the corresponding biological templates, executing unlocking operation. Therefore, the mobile terminal determines the first information of the acquired face image and the second information of the iris image according to the integrity, determines the information quantity included by the first information and the information quantity included by the second information according to the integrity, prevents the situation that the face has angle deflection to cause small integrity and unsuccessful matching, is favorable for improving the adaptability and the success rate of unlocking operation of the mobile terminal under different face angles, can ensure that the acquired information quantity is improved when the integrity is small, and is favorable for improving the safety of the mobile terminal.
In addition, the mobile terminal determines the acquisition strategies of the face image and the iris image according to the integrity of the face, personalized feature points are added when the integrity is low, the security of unlocking control is favorably ensured, meanwhile, different matching degree thresholds are determined according to the integrity of the face image, the unlocking operation is executed according to the matching degree thresholds, the fineness and the flexibility of the matching of the mobile terminal are favorably improved while the security of the mobile terminal is ensured, the first operation, the second operation and the third operation are executed in parallel instead of serial operation, and the speed of the unlocking control of the mobile terminal is favorably improved.
In accordance with the embodiments shown in fig. 2A, fig. 3, and fig. 4, please refer to fig. 5, and fig. 5 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention, and as shown in the drawing, the mobile terminal includes a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for performing the following steps;
determining the integrity of the face;
acquiring first information of a face image and second information of an iris image according to the integrity of the face;
and executing unlocking operation when the first information and the second information are successfully matched with the corresponding biological template.
It can be seen that, in the embodiment of the present invention, the mobile terminal first determines the integrity of the face; secondly, acquiring first information of a face image and second information of an iris image according to the integrity of the face; and finally, when the first information and the second information are successfully matched with the corresponding biological templates, executing unlocking operation. Therefore, the mobile terminal determines the first information of the acquired face image and the second information of the iris image according to the integrity, determines the information quantity included by the first information and the information quantity included by the second information according to the integrity, prevents the situation that the face has angle deflection to cause small integrity and unsuccessful matching, is favorable for improving the adaptability and the success rate of unlocking operation of the mobile terminal under different face angles, can ensure that the acquired information quantity is improved when the integrity is small, and is favorable for improving the safety of the mobile terminal.
In one possible example, in terms of determining the integrity of the face, the instructions in the program are specifically configured to perform the following steps: when an event to be unlocked is detected, determining the number of preset feature points in a preview image; and inquiring the mapping relation between the number of the preset feature points and the integrity according to the number of the preset feature points, and determining the integrity corresponding to the number of the preset feature points.
In one possible example, in terms of the above-mentioned acquiring the first information of the face image and the second information of the iris image according to the completeness of the face, the instructions in the program are specifically configured to perform the following steps: when the integrity of the face is larger than a preset threshold value, acquiring first information of the face image and second information of the iris image, wherein the first information comprises first type information of the face image, and the second information comprises the first type information of the iris image; and when the integrity of the face is smaller than or equal to a preset threshold value, acquiring first information of the face image and second information of the iris image, wherein the first information comprises the first type information and the second type information of the face image, and the second information comprises the first type information of the iris image.
In a possible example, the integrity of the face is less than or equal to the preset threshold, and the program further includes instructions for: when the first information and the second information are successfully matched with the corresponding biological templates and before unlocking operation is executed, acquiring a preset first type face template and a preset iris template; determining the area of the preset feature points in the preview image; and acquiring a preset second type face template corresponding to the area.
In a possible example, in the aspect that the integrity of the face is less than or equal to the preset threshold, and the matching of the first information and the second information with the corresponding biometric template is successful, the unlocking operation is performed, and the instructions in the program are specifically configured to perform the following steps: determining a first matching degree threshold value of the first type information of the face image, a second matching degree threshold value of the first type information of the iris image and a third matching degree threshold value of the second type information of the face image according to the integrity of the face image; executing a first operation, a second operation and a third operation in parallel, wherein the first operation is to match the first type information of the face image with the preset first type face template, the second operation is to match the first type information of the iris image with the preset iris template, and the third operation is to match the second type information of the face image with the preset second type face template; and executing an unlocking operation when the threshold of the degree of matching of the first operation is greater than or equal to the threshold of the first degree of matching, the threshold of the degree of matching of the second operation is greater than or equal to the threshold of the second degree of matching, and the threshold of the degree of matching of the third operation is greater than or equal to the threshold of the third degree of matching.
The above description has introduced the solution of the embodiment of the present invention mainly from the perspective of the method-side implementation process. It is understood that the mobile terminal includes hardware structures and/or software modules for performing the respective functions in order to implement the above-described functions. Those of skill in the art will readily appreciate that the present invention can be implemented in hardware or a combination of hardware and computer software, with the exemplary elements and algorithm steps described in connection with the embodiments disclosed herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The embodiment of the present invention may perform the division of the functional units for the mobile terminal according to the method example described above, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
In case of an integrated unit, fig. 6 shows a block diagram of one possible functional unit composition of the mobile terminal involved in the above embodiment. The mobile terminal 600 includes: a processing unit 602 and an acquisition unit 603. Processing unit 602 is configured to control and manage actions of the mobile terminal, e.g., processing unit 602 is configured to support the mobile terminal to perform steps S201-S203 in fig. 2A, steps S301-S307 in fig. 3, steps S401-S409 in fig. 4, and/or other processes for the techniques described herein. The acquisition unit 603 is used for supporting communication between the mobile terminal and other devices. The mobile terminal may further include a storage unit 601 for storing program codes and data of the mobile terminal.
The processing unit 602 is configured to determine the integrity of a human face; and the second information used for collecting the first information of the face image and the iris image through the collecting unit 603 according to the integrity of the face; and executing an unlocking operation when the first information and the second information are successfully matched with the corresponding biological templates.
In one possible example, in terms of determining the integrity of the face, the processing unit 602 is specifically configured to: when an event to be unlocked is detected, determining the number of preset feature points in a preview image; and the mapping relation between the number of the preset feature points and the integrity is inquired according to the number of the preset feature points, and the integrity corresponding to the number of the preset feature points is determined.
In one possible example, in terms of the above-mentioned acquiring the first information of the face image and the second information of the iris image by the acquiring unit 603 according to the completeness of the face, the processing unit 602 is specifically configured to: when the integrity of the face is greater than a preset threshold, acquiring first information of the face image and second information of the iris image by the acquisition unit 603, wherein the first information comprises first type information of the face image, and the second information comprises the first type information of the iris image; and is configured to acquire, by the acquisition unit 603, first information of the face image and second information of the iris image when the integrity of the face is less than or equal to a preset threshold, where the first information includes the first type information and the second type information of the face image, and the second information includes the first type information of the iris image.
In a possible example, the integrity of the face is less than or equal to a preset threshold, and before the processing unit 603 performs the unlocking operation when the matching between the first information and the second information with the corresponding biometric template is successful, the processing unit is further configured to: acquiring a preset first type face template and a preset iris template; and a region for determining the preset feature points in the preview image; and the preset second type face template corresponding to the area is obtained.
In a possible example, in terms of performing an unlocking operation when the integrity of the face is less than or equal to a preset threshold and the matching of the first information and the second information with the corresponding biometric template is successful, the processing unit 602 is specifically configured to: determining a first matching degree threshold value of the first type information of the face image, a second matching degree threshold value of the first type information of the iris image and a third matching degree threshold value of the second type information of the face image according to the integrity of the face image; the system comprises a face image acquisition unit, a face template acquisition unit, a first type information acquisition unit, a second type information acquisition unit and a third type information acquisition unit, wherein the face image acquisition unit is used for acquiring face images of different types from the face template acquisition unit; and executing an unlocking operation when the threshold of the degree of matching of the first operation is greater than or equal to the first threshold of the degree of matching, the threshold of the degree of matching of the second operation is greater than or equal to the second threshold of the degree of matching, and the threshold of the degree of matching of the third operation is greater than or equal to the third threshold of the degree of matching.
The processing unit 602 may be a processor or a controller, the acquiring unit 603 may be an iris image acquiring device or a face image acquiring device, and the storage unit 601 may be a memory.
An embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any one of the methods described in the above method embodiments, and the computer includes a mobile terminal.
Embodiments of the present invention also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods as described in the above method embodiments. The computer program product may be a software installation package, the computer comprising a mobile terminal.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit may be stored in a computer readable memory if it is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a memory and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above methods according to the embodiments of the present invention. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash Memory disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.
The above embodiments of the present invention are described in detail, and the principle and the implementation of the present invention are explained by applying specific embodiments, and the above description of the embodiments is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (11)
1. A mobile terminal is characterized in that the mobile terminal comprises a processor, a human face image acquisition device, an iris image acquisition device and a memory, wherein the human face image acquisition device, the iris image acquisition device and the memory are connected with the processor,
the face image acquisition module is used for acquiring a face image according to the face integrity;
the iris image acquisition device is used for acquiring an iris image;
the memory is used for storing the biological template;
the processor is used for acquiring first information of a face image and second information of an iris image, and executing unlocking operation when the first information and the second information are successfully matched with the corresponding biological templates;
when the integrity of the face is greater than a preset threshold value, the first information comprises first type information of the face image, and the second information comprises the first type information of the iris image;
when the integrity of the face is smaller than or equal to a preset threshold value, the first information comprises first type information and second type information of the face image, and the second information comprises the first type information of the iris image;
the integrity of the face is less than or equal to the preset threshold, and when the first information and the second information are successfully matched with the corresponding biological template, an unlocking operation is executed, wherein the unlocking operation comprises the following steps:
determining a first matching degree threshold value of the first type information of the face image, a second matching degree threshold value of the first type information of the iris image and a third matching degree threshold value of the second type information of the face image according to the integrity of the face image;
executing a first operation, a second operation and a third operation in parallel, wherein the first operation is to match first type information of the face image with a preset first type face template, the second operation is to match first type information of the iris image with a preset iris template, and the third operation is to match second type information of the face image with a preset second type face template;
and when the matching degree threshold of the first operation is greater than or equal to the first matching degree threshold, the matching degree threshold of the second operation is greater than or equal to the second matching degree threshold, and the matching degree threshold of the third operation is greater than or equal to the third matching degree threshold, executing unlocking operation.
2. The mobile terminal of claim 1, wherein the integrity of the face is less than or equal to a preset threshold, and when the processor successfully matches the first information and the second information with the corresponding biometric templates, before performing an unlocking operation, the processor is further configured to: acquiring a preset first type face template and a preset iris template; the area used for determining the preset characteristic points in the preview image; and the preset second type face template corresponding to the region is obtained.
3. An unlock control method, characterized in that the method comprises:
determining the integrity of the face;
acquiring first information of a face image and second information of an iris image according to the integrity of the face;
when the first information and the second information are successfully matched with the corresponding biological templates, unlocking operation is executed;
wherein, the determining the integrity of the human face comprises:
when an event to be unlocked is detected, determining the number of preset feature points in a preview image;
inquiring the mapping relation between the number of preset feature points and the integrity according to the number of the preset feature points, and determining the integrity corresponding to the number of the preset feature points;
wherein, the integrity of the face is less than or equal to a preset threshold, and when the first information and the second information are successfully matched with the corresponding biological template, an unlocking operation is executed, including:
determining a first matching degree threshold value of the first type information of the face image, a second matching degree threshold value of the first type information of the iris image and a third matching degree threshold value of the second type information of the face image according to the integrity of the face image;
executing a first operation, a second operation and a third operation in parallel, wherein the first operation is to match first type information of the face image with a preset first type face template, the second operation is to match first type information of the iris image with a preset iris template, and the third operation is to match second type information of the face image with a preset second type face template;
and when the matching degree threshold of the first operation is greater than or equal to the first matching degree threshold, the matching degree threshold of the second operation is greater than or equal to the second matching degree threshold, and the matching degree threshold of the third operation is greater than or equal to the third matching degree threshold, executing unlocking operation.
4. The method of claim 3, wherein the acquiring the first information of the face image and the second information of the iris image according to the integrity of the face comprises:
when the integrity of the face is larger than a preset threshold value, acquiring first information of the face image and second information of the iris image, wherein the first information comprises first type information of the face image, and the second information comprises the first type information of the iris image; or the like, or, alternatively,
when the integrity of the face is smaller than or equal to a preset threshold value, acquiring first information of the face image and second information of the iris image, wherein the first information comprises first type information and second type information of the face image, and the second information comprises the first type information of the iris image.
5. The method according to claim 3 or 4, wherein the integrity of the face is less than or equal to the preset threshold, and when the matching of the first information and the second information with the corresponding biometric template is successful, before performing an unlocking operation, the method further comprises:
acquiring a preset first type face template and a preset iris template;
determining an area of a preset feature point in the preview image;
and acquiring a preset second type face template corresponding to the region.
6. A mobile terminal is characterized by comprising a processing unit and an acquisition unit,
the processing unit is used for determining the integrity of the human face; the acquisition unit is used for acquiring first information of a face image and second information of an iris image according to the integrity of the face; and the unlocking operation is executed when the first information and the second information are successfully matched with the corresponding biological templates;
wherein, when the integrity of the face is less than or equal to a preset threshold and the first information and the second information are successfully matched with the corresponding biometric template, the processing unit is specifically configured to: determining a first matching degree threshold value of the first type information of the face image, a second matching degree threshold value of the first type information of the iris image and a third matching degree threshold value of the second type information of the face image according to the integrity of the face image; the system comprises a face image acquisition unit, a face template acquisition unit, a face image processing unit, a first type information acquisition unit, a second type information acquisition unit and a third type information acquisition unit, wherein the face image acquisition unit is used for acquiring the first type information of the face image and the second type information of the iris image; and the unlocking operation is executed when the matching degree threshold value of the first operation is larger than or equal to the first matching degree threshold value, the matching degree threshold value of the second operation is larger than or equal to the second matching degree threshold value, and the matching degree threshold value of the third operation is larger than or equal to the third matching degree threshold value.
7. The mobile terminal according to claim 6, wherein in terms of determining the integrity of a face, the processing unit is specifically configured to: when an event to be unlocked is detected, determining the number of preset feature points in a preview image; and the mapping relation between the number of the preset feature points and the integrity is inquired according to the number of the preset feature points, and the integrity corresponding to the number of the preset feature points is determined.
8. The mobile terminal according to claim 6 or 7, wherein in the aspect of acquiring the first information of the face image and the second information of the iris image by the acquisition unit according to the integrity of the face, the processing unit is specifically configured to: when the integrity of the face is larger than a preset threshold value, acquiring first information of the face image and second information of the iris image through the acquisition unit, wherein the first information comprises first type information of the face image, and the second information comprises the first type information of the iris image; or, the method and the device are used for acquiring first information of the face image and second information of the iris image through the acquisition unit when the integrity of the face is smaller than or equal to a preset threshold, wherein the first information comprises first type information and second type information of the face image, and the second information comprises the first type information of the iris image.
9. The mobile terminal of claim 8, wherein the integrity of the face is less than or equal to a preset threshold, and before the processing unit successfully matches the first information and the second information with the corresponding biometric templates and performs an unlocking operation, the processing unit is further configured to: acquiring a preset first type face template and a preset iris template; the area is used for determining the preset characteristic points in the preview image; and the preset second type face template corresponding to the region is obtained.
10. A mobile terminal comprising a processor, memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 3-5.
11. A computer-readable storage medium, characterized in that a computer program for electronic data exchange is stored, wherein the computer program causes a computer to perform the method according to any of claims 3-5, the computer comprising a mobile terminal.
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| CN108304708A (en) * | 2018-01-31 | 2018-07-20 | 广东欧珀移动通信有限公司 | Mobile terminal, face unlocking method and related product |
| CN108415564B (en) * | 2018-02-26 | 2020-08-18 | Oppo广东移动通信有限公司 | Electronic device, equipment control method and related product |
| CN108537032A (en) * | 2018-04-19 | 2018-09-14 | 湖南德熠智能科技有限公司 | A kind of face identification method |
| CN108615001A (en) * | 2018-04-19 | 2018-10-02 | 湖南德熠智能科技有限公司 | Applied to the face identification method on mobile terminal |
| CN108733999A (en) * | 2018-04-24 | 2018-11-02 | 浙江大华技术股份有限公司 | A kind of unlocking method and device, terminal device and readable storage medium storing program for executing |
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