CN109376702B - Fingerprint identification method and related product - Google Patents
Fingerprint identification method and related product Download PDFInfo
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- CN109376702B CN109376702B CN201811458037.3A CN201811458037A CN109376702B CN 109376702 B CN109376702 B CN 109376702B CN 201811458037 A CN201811458037 A CN 201811458037A CN 109376702 B CN109376702 B CN 109376702B
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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- G06—COMPUTING; CALCULATING OR COUNTING
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- 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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1365—Matching; Classification
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Abstract
The embodiment of the application discloses fingerprint identification method and related products, is applied to electronic equipment, electronic equipment include processing circuit, and with optical fingerprint identification module and display screen that processing circuit connects, just the optical fingerprint identification module integrate in the display screen below, wherein the method includes: acquiring a fingerprint image; matching the fingerprint image with a preset fingerprint template to obtain a matching value; if the matching value is in a first preset range, acquiring an input position of the fingerprint image; and when the input position is a preset position, executing unlocking operation. By adopting the fingerprint identification method and device, fingerprint identification efficiency can be improved in a low-temperature environment.
Description
Technical Field
The application relates to the technical field of electronic equipment, in particular to a fingerprint identification method and a related product.
Background
With the widespread use of electronic devices (such as mobile phones, tablet computers, and the like), the electronic devices have more and more applications and more powerful functions, and the electronic devices are developed towards diversification and personalization, and become indispensable electronic products in the life of users.
Fingerprint identification technique also becomes electronic equipment's mark joining in marriage technique, along with fingerprint identification technique's development, it is the optics fingerprint identification module that is comparatively popular at present, this optics fingerprint identification module can integrate well in the screen below, however, the finger is under low temperature state, probably demonstrate the dry finger state (mainly mean under low temperature environment, because finger moisture is not enough, a state that presents), and when the optics fingerprint identification module carries out fingerprint collection to dry finger, fingerprint image is not clear enough, consequently, fingerprint identification efficiency has been reduced.
Disclosure of Invention
The embodiment of the application provides a fingerprint identification method and a related product, and fingerprint identification efficiency can be improved in a low-temperature environment.
In a first aspect, an embodiment of the present application provides an electronic device, which includes a processing circuit, and an optical fingerprint identification module and a display screen connected to the processing circuit, and the optical fingerprint identification module is integrated below the display screen, wherein,
the optical fingerprint identification module is used for acquiring a fingerprint image;
the processing circuit is used for matching the fingerprint image with a preset fingerprint template to obtain a matching value;
the display screen is used for acquiring the input position of the fingerprint image if the matching value is in a first preset range;
the processing circuit is further configured to execute an unlocking operation when the input position is a preset position.
In a second aspect, an embodiment of the present application provides a fingerprint identification method, which is applied to an electronic device, where the electronic device includes an optical fingerprint identification module and a display screen, and the optical fingerprint identification module is integrated below the display screen, and the method includes:
acquiring a fingerprint image;
matching the fingerprint image with a preset fingerprint template to obtain a matching value;
if the matching value is in a first preset range, acquiring an input position of the fingerprint image;
and when the input position is a preset position, executing unlocking operation.
In a third aspect, an embodiment of the present application provides a fingerprint identification device, which is applied to an electronic device, where the electronic device includes an optical fingerprint identification module and a display screen, and the optical fingerprint identification module is integrated below the display screen, the device includes: an acquisition unit, a matching unit and an unlocking unit, wherein,
the acquisition unit is used for acquiring a fingerprint image;
the matching unit is used for matching the fingerprint image with a preset fingerprint template to obtain a matching value;
the acquisition unit is further configured to acquire an input position of the fingerprint image if the matching value is within a first preset range;
the unlocking unit is used for executing unlocking operation when the input position is a preset position.
In a fourth aspect, an embodiment of the present application provides an electronic device, 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 the steps in the second aspect of the embodiment of the present application.
In a fifth aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in the second aspect of the present application.
In a sixth aspect, embodiments of the present application provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, where the computer program is operable to cause a computer to perform some or all of the steps as described in the second aspect of embodiments of the present application. The computer program product may be a software installation package.
It can be seen that the fingerprint identification method and the related product described in the embodiments of the present application are applied to an electronic device, the electronic device includes an optical fingerprint identification module and a display screen, and the optical fingerprint identification module is integrated below the display screen to obtain a fingerprint image, match the fingerprint image with a preset fingerprint template to obtain a matching value, if the matching value is in a first preset range, obtain an input position of the fingerprint image, and execute an unlocking operation when the input position is a preset position, so that if the matching value is in the first preset range, it indicates that the fingerprint may be from a user of the host, and during a use process, the user is accustomed to performing a fingerprint input at a certain position, and if the input position of the fingerprint image is a preset position (habitual fingerprint), it is determined that the fingerprint image is from the input position of the host, and the fingerprint is unlocked, so that a low temperature environment can be improved, fingerprint identification efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present application 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 application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1A is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;
fig. 1B is a schematic flowchart of a fingerprint identification method according to an embodiment of the present application;
FIG. 1C is a schematic illustration of a region of a display screen provided by an embodiment of the present application;
FIG. 2 is a schematic flowchart of another fingerprint identification method provided in an embodiment of the present application;
FIG. 3 is a schematic flowchart of another fingerprint identification method provided in the embodiments of the present application;
fig. 4 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;
FIG. 5A is a block diagram illustrating functional units of a fingerprint identification device according to an embodiment of the present disclosure;
fig. 5B is a block diagram illustrating functional units of another fingerprint identification device according to an embodiment of the present disclosure.
Detailed Description
The terms "first," "second," and the like in the description and claims of the present application 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 application. 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 electronic device related to the embodiments of the present application may include various handheld devices, vehicle-mounted devices, wearable devices (smart watches, smart bracelets, wireless headsets, augmented reality/virtual reality devices, smart glasses), computing devices or other processing devices connected to wireless modems, 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 electronic devices.
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
The following describes embodiments of the present application in detail.
Referring to fig. 1A, fig. 1A is a schematic structural diagram of an electronic device disclosed in an embodiment of the present application, the electronic device 100 includes a storage and processing circuit 110, and a sensor 170 connected to the storage and processing circuit 110, the sensor 170 includes a camera, where:
the electronic device 100 may include control circuitry, which may include storage and processing circuitry 110. The storage and processing circuitry 110 may be a memory, such as a hard drive memory, a non-volatile memory (e.g., flash memory or other electronically programmable read-only memory used to form a solid state drive, etc.), a volatile memory (e.g., static or dynamic random access memory, etc.), etc., and the embodiments of the present application are not limited thereto. Processing circuitry in storage and processing circuitry 110 may be used to control the operation of electronic device 100. The processing circuitry may be implemented based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application specific integrated circuits, display driver integrated circuits, and the like.
The storage and processing circuitry 110 may be used to run software in the electronic device 100, such as an Internet browsing application, a Voice Over Internet Protocol (VOIP) telephone call application, an email application, a media playing application, operating system functions, and so forth. Such software may be used to perform control operations such as, for example, camera-based image capture, ambient light measurement based on an ambient light sensor, proximity sensor measurement based on a proximity sensor, information display functionality based on status indicators such as status indicator lights of light emitting diodes, touch event detection based on a touch sensor, functionality associated with displaying information on multiple (e.g., layered) display screens, operations associated with performing wireless communication functionality, operations associated with collecting and generating audio signals, control operations associated with collecting and processing button press event data, and other functions in the electronic device 100, to name a few.
The electronic device 100 may include input-output circuitry 150. The input-output circuit 150 may be used to enable the electronic device 100 to input and output data, i.e., to allow the electronic device 100 to receive data from an external device and also to allow the electronic device 100 to output data from the electronic device 100 to the external device. The input-output circuit 150 may further include a sensor 170. Sensor 170 may include an ambient light sensor, a proximity sensor based on light and capacitance, an optical fingerprint recognition module, a touch sensor (e.g., based on an optical touch sensor and/or a capacitive touch sensor, where the touch sensor may be part of a touch display screen, or may be used independently as a touch sensor structure), an acceleration sensor, a camera, and other sensors, etc., the camera may be a front-facing camera or a rear-facing camera, and the optical fingerprint recognition module may be integrated below the display screen for collecting fingerprint images.
Input-output circuit 150 may also include one or more display screens, such as display screen 130. The display 130 may include one or a combination of liquid crystal display, organic light emitting diode display, electronic ink display, plasma display, display using other display technologies. The display screen 130 may include an array of touch sensors (i.e., the display screen 130 may be a touch display screen). The touch sensor may be a capacitive touch sensor formed by a transparent touch sensor electrode (e.g., an Indium Tin Oxide (ITO) electrode) array, or may be a touch sensor formed using other touch technologies, such as acoustic wave touch, pressure sensitive touch, resistive touch, optical touch, and the like, and the embodiments of the present application are not limited thereto.
The electronic device 100 may also include an audio component 140. The audio component 140 may be used to provide audio input and output functionality for the electronic device 100. The audio components 140 in the electronic device 100 may include a speaker, a microphone, a buzzer, a tone generator, and other components for generating and detecting sound.
The communication circuit 120 may be used to provide the electronic device 100 with the capability to communicate with external devices. The communication circuit 120 may include analog and digital input-output interface circuits, and wireless communication circuits based on radio frequency signals and/or optical signals. The wireless communication circuitry in communication circuitry 120 may include radio-frequency transceiver circuitry, power amplifier circuitry, low noise amplifiers, switches, filters, and antennas. For example, the wireless Communication circuitry in Communication circuitry 120 may include circuitry to support Near Field Communication (NFC) by transmitting and receiving Near Field coupled electromagnetic signals. For example, the communication circuit 120 may include a near field communication antenna and a near field communication transceiver. The communications circuitry 120 may also include a cellular telephone transceiver and antenna, a wireless local area network transceiver circuitry and antenna, and so forth.
The electronic device 100 may further include a battery, power management circuitry, and other input-output units 160. The input-output unit 160 may include buttons, joysticks, click wheels, scroll wheels, touch pads, keypads, keyboards, cameras, light emitting diodes and other status indicators, and the like.
A user may input commands through input-output circuitry 150 to control the operation of electronic device 100, and may use output data of input-output circuitry 150 to enable receipt of status information and other outputs from electronic device 100.
The electronic device described above with reference to fig. 1A may be configured to implement the following functions:
the optical fingerprint identification module is used for acquiring a fingerprint image;
the processing circuit is used for matching the fingerprint image with a preset fingerprint template to obtain a matching value;
the display screen is used for acquiring the input position of the fingerprint image if the matching value is in a first preset range;
the processing circuit is further configured to execute an unlocking operation when the input position is a preset position.
In one possible example, the processing circuit is further specifically configured to:
detecting whether the electronic equipment is in a preset low-temperature state or not;
and if the electronic equipment is in a preset low-temperature state, the step of acquiring the input position of the fingerprint image is executed by the display screen.
In one possible example, in terms of the detecting whether the electronic device is in the preset low temperature state, the processing circuit is specifically configured to:
performing image quality evaluation on the fingerprint image to obtain an image quality evaluation value;
and when the image quality evaluation value is in a second preset range, confirming that the electronic equipment is in a preset low-temperature state.
In one possible example, in terms of the detecting whether the electronic device is in the preset low temperature state, the processing circuit is specifically configured to:
extracting the features of the fingerprint image to obtain a feature point set;
determining a fingerprint area of the fingerprint image;
determining the distribution density of the characteristic points of the fingerprint image according to the fingerprint area and the characteristic point set;
and when the distribution density of the characteristic points is in a third preset range, confirming that the electronic equipment is in a preset low-temperature state.
In one possible example, the communication circuit or the sensor is used to obtain an ambient temperature;
in the aspect of detecting whether the electronic device is in a preset low-temperature state, the processing circuit is specifically configured to:
and when the environmental temperature is lower than a preset temperature threshold value, confirming that the electronic equipment is in the preset low-temperature state.
In one possible example, the display screen is further specifically configured to:
when a user presses the display screen, pressing parameters are obtained, wherein the pressing parameters comprise pressing strength and pressing area;
and when the pressing force is greater than a preset force threshold value and the pressing area is greater than a preset area threshold value, the step of acquiring the fingerprint image is executed by the optical fingerprint identification module.
Referring to fig. 1B, fig. 1B is a schematic flow chart of a fingerprint identification method according to an embodiment of the present disclosure, and as shown in the drawing, the fingerprint identification method is applied to the electronic device shown in fig. 1A, where the electronic device includes an optical fingerprint identification module and a display screen, and the optical fingerprint identification module is integrated below the display screen, and the fingerprint identification method includes:
101. a fingerprint image is acquired.
Wherein, in the embodiment of this application, electronic equipment includes optics fingerprint identification module and display screen, and optics fingerprint identification module can be integrated in the display screen below, and the display screen can be for full screen or bang screen or water droplet screen, does not do not limit here. When the user pressed electronic equipment's display screen, the fingerprint collection can be carried out to the optics fingerprint identification module of display screen below, obtains the fingerprint image.
102. And matching the fingerprint image with a preset fingerprint template to obtain a matching value.
The electronic equipment can be used for pre-storing a preset fingerprint template, matching the fingerprint image with the preset fingerprint template to obtain a matching value, specifically, the electronic equipment can be used for respectively carrying out feature extraction on the fingerprint image to obtain a feature point set, carrying out feature extraction on the preset fingerprint template to obtain another feature point set, wherein each feature point set comprises at least one feature point, and matching the two feature point sets to obtain the matching value. The main algorithm of feature extraction may be at least one of: a Harris corner extraction algorithm, an SURF algorithm, a Scale Invariant Feature Transform (SIFT) algorithm, and the like, which are not limited herein.
Optionally, in the step 102, matching the fingerprint image with a preset fingerprint template to obtain a matching value may include the following steps:
21. performing texture screening on the fingerprint image to obtain a plurality of target fingerprint textures, wherein the fingerprint image comprises a plurality of fingerprint textures, and the average width of each fingerprint texture in the target fingerprint textures is within a preset width range;
22. extracting characteristic points of the target fingerprint lines to obtain a first characteristic point set, wherein the first characteristic point set comprises a plurality of characteristic points;
23. extracting the characteristics of the preset fingerprint template to obtain a second characteristic point set;
24. and matching the first characteristic point set with the second characteristic point set to obtain a matching value.
The preset range can be set by default by a system or set by a user. Because fingerprint line width not only varies from person to person, under the touch-control dynamics of difference moreover, the line width is also different, consequently, can adopt the line width to discern the user to a certain extent, perhaps, makes the judgement to the definition of fingerprint image according to fingerprint line width, so, has promoted security and recognition accuracy.
103. And if the matching value is in a first preset range, acquiring the input position of the fingerprint image.
The first preset range can be set by a user or defaulted by a system, the first preset range is lower than a preset fingerprint identification threshold, and the preset fingerprint identification threshold can be set by the user or defaulted by the system. In the case of normal temperature, if the matching value between the fingerprint image and the preset fingerprint template is greater than or equal to the fingerprint recognition threshold, the unlocking operation is performed, since the quality of the fingerprint image is degraded in the low temperature state, but if the fingerprint image is the fingerprint of the owner, there are some feature points that will be successfully matched, so the lower limit value of the first preset range will be higher than 0, and the upper limit value will be lower than the fingerprint recognition threshold.
In the process that the user presses the display screen, the display screen can record the pressing position, and the pressing position is used as the input position of the fingerprint image, or in the process that the user presses the display screen, the pressing area can be determined, and the position of the center of the pressing area is used as the input position of the fingerprint image.
Optionally, in the process of executing step 103, the method further includes the following steps:
a1, detecting whether the electronic equipment is in a preset low-temperature state;
a2, if the electronic equipment is in a preset low-temperature state, executing the step of acquiring the input position of the fingerprint image.
The preset low temperature state may be set by a user or default to a system, for example, the temperature corresponding to the preset low temperature state is (-10 degrees, 0 degrees). When the electronic equipment is in a preset low-temperature state, the step of acquiring the input position of the fingerprint image can be executed, otherwise, the user is prompted to fail in unlocking. The electronic equipment can be provided with a temperature sensor for detecting the ambient temperature, and when the ambient temperature is within a preset temperature range, the electronic equipment can be confirmed to be in a preset low-temperature state.
Optionally, the step a1, detecting whether the electronic device is in the preset low temperature state, may include the following steps:
b11, carrying out image quality evaluation on the fingerprint image to obtain an image quality evaluation value;
and B12, confirming that the electronic equipment is in a preset low-temperature state when the image quality evaluation value is in a second preset range.
Wherein, the second preset range can be set by the user or the system defaults. Generally, if the fingerprint image corresponding to the non-finger is not the same, the fingerprint image is relatively clear, if the fingerprint image corresponding to the finger is the same, the image quality of the fingerprint image is reduced to a certain extent, but the image quality of the fingerprint image is kept within a certain range.
Further alternatively, in the step B11, the image quality evaluation is performed on the fingerprint image to obtain an image quality evaluation value, which may be implemented as follows:
and performing image quality evaluation on the fingerprint image by adopting at least one image quality evaluation index to obtain an image quality evaluation value.
The image quality evaluation index may include, but is not limited to: mean gray scale, mean square error, entropy, edge preservation, signal-to-noise ratio, and the like. It can be defined that the larger the resulting image quality evaluation value is, the better the image quality is.
It should be noted that, since there is a certain limitation in evaluating image quality by using a single evaluation index, it is possible to evaluate image quality by using a plurality of image quality evaluation indexes, and certainly, when evaluating image quality, it is not preferable that the image quality evaluation indexes are more, because the image quality evaluation indexes are more, the calculation complexity of the image quality evaluation process is higher, and the image quality evaluation effect is not better, and therefore, in a case where the image quality evaluation requirement is higher, it is possible to evaluate image quality by using 2 to 10 image quality evaluation indexes. Specifically, the number of image quality evaluation indexes and which index is selected is determined according to the specific implementation situation. Of course, the image quality evaluation index selected in combination with the specific scene selection image quality evaluation index may be different between the image quality evaluation performed in the dark environment and the image quality evaluation performed in the bright environment.
Alternatively, in the case where the requirement on the accuracy of the image quality evaluation is not high, the evaluation may be performed by using one image quality evaluation index, for example, the image quality evaluation value may be performed on the image to be processed by using entropy, and it may be considered that the larger the entropy, the better the image quality is, and conversely, the smaller the entropy, the worse the image quality is.
Alternatively, when the requirement on the image quality evaluation accuracy is high, the image to be evaluated may be evaluated by using a plurality of image quality evaluation indexes, and when the image to be evaluated is evaluated by using a plurality of image quality evaluation indexes, a weight of each image quality evaluation index in the plurality of image quality evaluation indexes may be set, so that a plurality of image quality evaluation values may be obtained, and a final image quality evaluation value may be obtained according to the plurality of image quality evaluation values and their corresponding weights, for example, three image quality evaluation indexes are: when an image quality evaluation is performed on a certain image by using A, B and C, the image quality evaluation value corresponding to a is B1, the image quality evaluation value corresponding to B is B2, and the image quality evaluation value corresponding to C is B3, the final image quality evaluation value is a1B1+ a2B2+ a3B 3. In general, the larger the image quality evaluation value, the better the image quality.
Optionally, the step a1, detecting whether the electronic device is in the preset low temperature state, may include the following steps:
c11, extracting the features of the fingerprint image to obtain a feature point set;
c12, determining the fingerprint area of the fingerprint image;
c13, determining the distribution density of the characteristic points of the fingerprint image according to the fingerprint area and the characteristic point set;
and C14, when the distribution density of the characteristic points is in a third preset range, confirming that the electronic equipment is in a preset low-temperature state.
The third preset range may be set by the user, or the system defaults. In a specific implementation, the electronic device may perform feature extraction on the fingerprint image to obtain a feature point set, count the total number of feature points in the feature point set, where the distribution density of the feature points is equal to the total number of feature points/area of the fingerprint, and when the distribution density of the feature points is within a third preset range, determine that the electronic device is in a preset low-temperature state, otherwise, determine that the electronic device is not in the preset low-temperature state.
Optionally, the step a1, detecting whether the electronic device is in the preset low temperature state, may include the following steps:
and acquiring the ambient temperature, and confirming that the electronic equipment is in the preset low-temperature state when the ambient temperature is lower than a preset temperature threshold value.
Wherein, above-mentioned temperature threshold value of predetermineeing can be set up by the user by oneself or the system defaults, and electronic equipment can embed temperature sensor, acquires ambient temperature through temperature sensor, and perhaps, electronic equipment can acquire ambient temperature through weather application (internet), and then, is less than temperature threshold value of predetermineeing at ambient temperature, then confirms that electronic equipment is in predetermineeing the low temperature state.
104. And when the input position is a preset position, executing unlocking operation.
The preset position can be set by a user or defaulted by a system, the preset position can be a position where the user frequently or habitually inputs fingerprints, when the input position is the preset position, unlocking operation can be executed, otherwise, the user is prompted to fail to unlock, or the user is prompted to input the fingerprints again. The unlocking operation can be understood as: the method includes entering a desktop, or entering a specified page, or starting a specified application, or making a payment, and the like, which are not limited herein, and the specified page and the specified application may be set by a user or default by a system.
Optionally, before the step 101, the following steps may be further included:
d1, when the user presses the display screen, obtaining pressing parameters, wherein the pressing parameters comprise pressing strength and pressing area;
d2, when the pressing force is larger than a preset force threshold and the pressing area is larger than a preset area threshold, executing the step of acquiring the fingerprint image.
The preset force threshold and the preset area threshold can be set by a user or defaulted by a system. When the user pressed the display screen, then can acquire the parameter of pressing, should press the parameter and can include according to the pressure degree and press the area, be greater than preset dynamics threshold value at the pressure degree, then effectively prevent the mistake in a certain degree and touch, in addition, press the area and need be greater than preset area threshold value, then possess abundant characteristic point in the fingerprint image that can guarantee follow-up collection, so, if reacquire the fingerprint image, then can promote fingerprint identification efficiency.
Optionally, before the step D1, the following steps may be further included:
e1, obtaining a pressing parameter of the user pressing the display screen of the electronic equipment;
e2, comparing the pressing parameters with preset pressing parameters;
e3, confirming that the user presses the display screen of the electronic equipment when the pressing parameter is successfully compared with the preset pressing parameter.
In this embodiment, the pressing parameter may be at least one of the following: pressing time, pressing area, pressing force degree, and the like, which are not limited herein. The pressing time is the duration of pressing the display screen, the pressing area is the pressing area of pressing the display screen, the pressing area is the specific position of pressing the display screen, and the pressing strength is the average pressing strength of pressing the display screen. In specific implementation, preset pressing parameters may be pre-stored in the electronic device, and the preset pressing parameters may be at least one of the following: pressing time, pressing area, pressing force degree, and the like, which are not limited herein. The pressing time is the duration of pressing the display screen, the pressing area is the pressing area of pressing the display screen, the pressing area is the specific position of pressing the display screen, the average pressing force electronic equipment for pressing the display screen can obtain the pressing parameters of pressing the electronic equipment by the user after the user contacts the display screen, the pressing parameters are compared with the preset pressing parameters, when the pressing parameters are compared with the preset pressing parameters successfully, the display screen of the electronic equipment is pressed by the user, therefore, the error touch prevention can be realized to a certain extent, and under the condition that the comparison of the pressing parameters and the preset pressing parameters fails, the display screen of the electronic equipment which is not pressed by the user can be confirmed.
Further optionally, the compression parameters include a degree of compression, a compression area, and a compression area; the preset pressing parameters comprise a preset pressing intensity, a preset pressing area and a fingerprint acquisition area, and the fingerprint acquisition area is an area where the optical fingerprint identification module is located;
in the step E2, comparing the pressing parameter with a preset pressing parameter may include the following steps:
e21, when the pressing force is larger than the preset pressing force, determining a target pressing area located in the fingerprint collection area in the pressing areas;
e22, when the target pressing area is larger than the preset pressing area, confirming that the pressing parameter is successfully compared with the preset pressing parameter.
Wherein, press the parameter and can include according to pressure degree, press area and press the region, correspondingly, predetermine and press the parameter and can include predetermine according to the pressure degree, predetermine press area and fingerprint collection area, and the fingerprint collection area is optics fingerprint identification module place region. Firstly, the pressing force can be compared with the preset pressing force, if the pressing force is greater than the preset pressing force, the user can be considered to press the display screen intentionally to a certain extent, the display screen is not touched by mistake, in addition, when the pressing force is greater than a certain threshold value, the line details of the fingerprint can be highlighted, and further, the target pressing area in the fingerprint collection area in the pressing area is determined, in the pressing process, because the fingerprint collection area is limited, the user is not in the pressing process, all finger parts are located in the fingerprint collection area, and possibly in the non-fingerprint collection area, as shown in fig. 1C, fig. 1C shows that, in the pressing process, a part of the pressing area is located in the fingerprint collection area, a part of the pressing area is located in the non-fingerprint collection area, the display area of the display screen can comprise the fingerprint collection area and the non-fingerprint collection area, and possess the touch-control and detect the function, of course, only be in fingerprint collection region, can be gathered fingerprint image. Because in practical application, sufficient fingerprint feature needs to be gathered to fingerprint identification, consequently, has certain requirement to the target area of pressing, and the target area of pressing needs to be greater than predetermineeing the area of pressing promptly, like this, can think that the parameter of pressing compares successfully with predetermineeing the parameter of pressing, so, can guarantee to possess sufficient line and detail feature in the fingerprint image of follow-up gathering. The fingerprint acquisition area is an area in the touch screen, namely a large area with the size capable of being pressed by a plurality of fingers at the same time, and is not a small area capable of being pressed by a single finger.
It can be seen that the fingerprint identification method described in the embodiments of the present application is applied to electronic equipment, the electronic equipment includes an optical fingerprint identification module and a display screen, and the optical fingerprint identification module is integrated below the display screen to acquire a fingerprint image, the fingerprint image is matched with a preset fingerprint template to obtain a matching value, if the matching value is in a first preset range, the input position of the fingerprint image is acquired, when the input position is a preset position, the unlocking operation is executed, so that when the matching value is in a first preset range, the fingerprint is probably from the owner user, and during the use, the user is used to input the fingerprint at a certain position, if the input position of the fingerprint image is a preset position (habitual fingerprint input position), then confirm that the fingerprint image comes from the owner, unblock, can promote under the low temperature environment, fingerprint identification efficiency.
Referring to fig. 2 in a manner consistent with the embodiment shown in fig. 1B, fig. 2 is a schematic flowchart of a fingerprint identification method provided in an embodiment of the present application, and as shown in the drawing, the fingerprint identification method is applied to the electronic device shown in fig. 1A, where the electronic device includes an optical fingerprint identification module and a display screen, and the optical fingerprint identification module is integrated below the display screen, and the fingerprint identification method includes:
201. a fingerprint image is acquired.
202. And matching the fingerprint image with a preset fingerprint template to obtain a matching value.
203. And if the matching value is in a first preset range, detecting whether the electronic equipment is in a preset low-temperature state.
204. And if the electronic equipment is in a preset low-temperature state, acquiring the input position of the fingerprint image.
205. And when the input position is a preset position, executing unlocking operation.
For the detailed description of the steps 201 to 205, reference may be made to the corresponding steps of the fingerprint identification method described in the foregoing fig. 1B, and details are not repeated here.
It can be seen that the fingerprint identification method and related product described in the embodiments of the present application are applied to an electronic device, the electronic device includes an optical fingerprint identification module and a display screen, and the optical fingerprint identification module is integrated below the display screen to obtain a fingerprint image, match the fingerprint image with a preset fingerprint template to obtain a matching value, detect whether the electronic device is in a preset low temperature state if the matching value is in a first preset range, obtain an input position of the fingerprint image if the electronic device is in the preset low temperature state, execute an unlocking operation when the input position is the preset position, and thus indicate that the fingerprint may come from a host user if the matching value is in the first preset range, for example, the fingerprint image quality is degraded in a low temperature situation, so that it can be further detected whether the electronic device is in the low temperature state, if so, further determine according to the preset position, in the using process, a user is used to input a fingerprint at a certain position, and if the input position of the fingerprint image is a preset position (habitual fingerprint input position), the user confirms that the fingerprint image comes from the owner to unlock, so that the fingerprint identification efficiency in a low-temperature environment can be improved.
Referring to fig. 3, fig. 3 is a schematic flow chart of a fingerprint identification method according to an embodiment of the present application, and as shown in the figure, the fingerprint identification method is applied to the electronic device shown in fig. 1A, where the electronic device includes an optical fingerprint identification module and a display screen, and the optical fingerprint identification module is integrated below the display screen, and the fingerprint identification method includes:
301. when a user presses the display screen, pressing parameters are obtained, wherein the pressing parameters comprise pressing strength and pressing area.
302. And when the pressing force is greater than a preset force threshold value and the pressing area is greater than a preset area threshold value, acquiring a fingerprint image.
303. And matching the fingerprint image with a preset fingerprint template to obtain a matching value.
304. And if the matching value is in a first preset range, acquiring the input position of the fingerprint image.
305. And when the input position is a preset position, executing unlocking operation.
For the detailed description of steps 301 to 305, reference may be made to the corresponding steps of the fingerprint identification method described in fig. 1B, which are not described herein again.
It can be seen that the fingerprint identification method described in the embodiments of the present application is applied to an electronic device, the electronic device includes an optical fingerprint identification module and a display screen, and the optical fingerprint identification module is integrated below the display screen, when a user presses the display screen, a pressing parameter is obtained, the pressing parameter includes a pressing strength and a pressing area, when the pressing strength is greater than a preset strength threshold and the pressing area is greater than a preset area threshold, a fingerprint image is obtained, the fingerprint image is matched with a preset fingerprint template to obtain a matching value, if the matching value is within a first preset range, an input position of the fingerprint image is obtained, when the input position is a preset position, an unlocking operation is performed, so that not only can an erroneous touch prevention be achieved by pressing the pressing strength and the pressing area, but also when the matching value is within the first preset range, it is indicated that the fingerprint may come from a host user, in addition, in the using process, a user is used to input a fingerprint at a certain position, and if the input position of the fingerprint image is a preset position (habitual fingerprint input position), the user confirms that the fingerprint image comes from the owner to unlock the mobile phone, so that the fingerprint identification efficiency in a low-temperature environment can be improved.
Referring to fig. 4 in accordance with the above embodiments, fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure, and as shown in the drawing, the electronic device includes a processor, a memory, a communication interface, and one or more programs, the electronic device includes an optical fingerprint identification module and a display screen, and the optical fingerprint identification module is integrated below the display screen, where the one or more programs are stored in the memory and configured to be executed by the processor, and in an embodiment of the present disclosure, the program includes instructions for performing the following steps:
acquiring a fingerprint image;
matching the fingerprint image with a preset fingerprint template to obtain a matching value;
if the matching value is in a first preset range, acquiring an input position of the fingerprint image;
and when the input position is a preset position, executing unlocking operation.
It can be seen that, the electronic equipment described in the embodiment of the application, electronic equipment includes optics fingerprint identification module and display screen, and optics fingerprint identification module integration is in the display screen below, acquire the fingerprint image, match the fingerprint image with preset fingerprint template, obtain the matching value, if the matching value is in first preset range, acquire the input position of fingerprint image, when the input position is preset position, carry out the unblock operation, so, be in first preset range at the matching value, it is possible that the fingerprint comes from owner user to explain, and in the use, the user is used to carry out the fingerprint input at a certain position, if the input position of fingerprint image is preset position (habitual fingerprint input position), then confirm that the fingerprint image comes from owner, carry out the unblock, can promote under the low temperature environment, fingerprint identification efficiency.
In one possible example, the program further includes instructions for performing the steps of:
detecting whether the electronic equipment is in a preset low-temperature state or not;
and if the electronic equipment is in a preset low-temperature state, executing the step of acquiring the input position of the fingerprint image.
In one possible example, in the detecting whether the electronic device is in the preset low temperature state, the program includes instructions for performing the steps of:
performing image quality evaluation on the fingerprint image to obtain an image quality evaluation value;
and when the image quality evaluation value is in a second preset range, confirming that the electronic equipment is in a preset low-temperature state.
In one possible example, in the detecting whether the electronic device is in the preset low temperature state, the program includes instructions for performing the steps of:
extracting the features of the fingerprint image to obtain a feature point set;
determining a fingerprint area of the fingerprint image;
determining the distribution density of the characteristic points of the fingerprint image according to the fingerprint area and the characteristic point set;
and when the distribution density of the characteristic points is in a third preset range, confirming that the electronic equipment is in a preset low-temperature state.
In one possible example, in the detecting whether the electronic device is in the preset low temperature state, the program includes instructions for performing the steps of:
acquiring an ambient temperature;
and when the environmental temperature is lower than a preset temperature threshold value, confirming that the electronic equipment is in the preset low-temperature state.
In one possible example, the program further includes instructions for performing the steps of:
when a user presses the display screen, pressing parameters are obtained, wherein the pressing parameters comprise pressing strength and pressing area;
and when the pressing force is greater than a preset force threshold and the pressing area is greater than a preset area threshold, executing the step of acquiring the fingerprint image.
The above description has introduced the solution of the embodiment of the present application mainly from the perspective of the method-side implementation process. It is understood that the electronic device comprises corresponding hardware structures and/or software modules for performing the respective functions in order to realize the above-mentioned functions. Those of skill in the art will readily appreciate that the present application is capable of hardware or a combination of hardware and computer software implementing the various illustrative elements and algorithm steps described in connection with the embodiments provided 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 application.
In the embodiment of the present application, the electronic device may be divided into the functional units according to the method example, 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 application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
Fig. 5A is a block diagram of functional units of a fingerprint identification device 500 according to an embodiment of the present application. This fingerprint identification device 500 is applied to electronic equipment, electronic equipment includes optics fingerprint identification module and display screen, just optics fingerprint identification module integrate in the display screen below, device 500 includes: an acquisition unit 501, a matching unit 502 and an unlocking unit 503, wherein,
the acquiring unit 501 is configured to acquire a fingerprint image;
the matching unit 502 is configured to match the fingerprint image with a preset fingerprint template to obtain a matching value;
the obtaining unit 501 is further configured to obtain an input position of the fingerprint image if the matching value is within a first preset range;
the unlocking unit 503 is configured to execute an unlocking operation when the input position is a preset position.
It can be seen that the fingerprint identification apparatus described in the embodiments of the present application is applied to electronic equipment, the electronic equipment includes an optical fingerprint identification module and a display screen, and the optical fingerprint identification module is integrated below the display screen to acquire a fingerprint image, the fingerprint image is matched with a preset fingerprint template to obtain a matching value, if the matching value is in a first preset range, the input position of the fingerprint image is acquired, when the input position is a preset position, the unlocking operation is executed, so that when the matching value is in a first preset range, the fingerprint is probably from the owner user, and during the use, the user is used to input the fingerprint at a certain position, if the input position of the fingerprint image is a preset position (habitual fingerprint input position), then confirm that the fingerprint image comes from the owner, unblock, can promote under the low temperature environment, fingerprint identification efficiency.
In one possible example, as shown in fig. 5B, fig. 5B is a further modified structure of the fingerprint identification method shown in fig. 5A, which may further include, compared with fig. 5A: the detection unit 504 is specifically as follows:
the detection unit 504 is configured to detect whether the electronic device is in a preset low-temperature state;
by the acquiring unit 501, if the electronic device is in a preset low temperature state, the step of acquiring the input position of the fingerprint image is executed.
In one possible example, in terms of detecting whether the electronic device is in a preset low temperature state, the detecting unit 504 is specifically configured to:
performing image quality evaluation on the fingerprint image to obtain an image quality evaluation value;
and when the image quality evaluation value is in a second preset range, confirming that the electronic equipment is in a preset low-temperature state.
In one possible example, in terms of detecting whether the electronic device is in a preset low temperature state, the detecting unit 504 is specifically configured to:
extracting the features of the fingerprint image to obtain a feature point set;
determining a fingerprint area of the fingerprint image;
determining the distribution density of the characteristic points of the fingerprint image according to the fingerprint area and the characteristic point set;
and when the distribution density of the characteristic points is in a third preset range, confirming that the electronic equipment is in a preset low-temperature state.
In one possible example, in terms of detecting whether the electronic device is in a preset low temperature state, the detecting unit 504 is specifically configured to:
acquiring an ambient temperature;
and when the environmental temperature is lower than a preset temperature threshold value, confirming that the electronic equipment is in the preset low-temperature state.
In one possible example, the obtaining unit 501 is specifically configured to:
when a user presses the display screen, pressing parameters are obtained, wherein the pressing parameters comprise pressing strength and pressing area;
and when the pressing force is greater than a preset force threshold and the pressing area is greater than a preset area threshold, executing the step of acquiring the fingerprint image.
Embodiments of the present application also provide a computer storage medium, where the computer storage medium stores a computer program for electronic data exchange, the computer program enabling 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 an electronic device.
Embodiments of the present application 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 an electronic device.
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 application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. 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 in this application.
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 application 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 application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including 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-mentioned method of the embodiments of the present application. 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 foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, 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 application.
Claims (7)
1. An electronic device, comprising a processing circuit, and an optical fingerprint identification module and a display screen connected to the processing circuit, wherein the optical fingerprint identification module is integrated under the display screen,
the optical fingerprint identification module is used for acquiring a fingerprint image;
the processing circuit is used for matching the fingerprint image with a preset fingerprint template to obtain a matching value;
the display screen is used for acquiring an input position of the fingerprint image if the matching value is within a first preset range, wherein the first preset range is lower than a preset fingerprint identification threshold value, the preset fingerprint identification threshold value is a fingerprint identification threshold value corresponding to direct unlocking operation, and the input position is a position where the center of a pressing area is located;
the processing circuit is further configured to execute an unlocking operation when the input position is a preset position, where the preset position is a position where a user frequently or habitually inputs a fingerprint;
in the aspect of matching the fingerprint image with a preset fingerprint template to obtain a matching value, the processing circuit is specifically configured to:
performing texture screening on the fingerprint image to obtain a plurality of target fingerprint textures, wherein the fingerprint image comprises a plurality of fingerprint textures, and the average width of each fingerprint texture in the target fingerprint textures is within a preset width range;
extracting characteristic points of the target fingerprint lines to obtain a first characteristic point set, wherein the first characteristic point set comprises a plurality of characteristic points;
extracting the characteristics of the preset fingerprint template to obtain a second characteristic point set;
matching the first characteristic point set with the second characteristic point set to obtain a matching value;
wherein the processing circuit is further specifically configured to:
detecting whether the electronic equipment is in a preset low-temperature state, specifically: detecting the ambient temperature through a temperature sensor, wherein the preset low temperature state is-10-0 ℃;
and if the electronic equipment is in a preset low-temperature state, the step of acquiring the input position of the fingerprint image is executed by the display screen.
2. The electronic device of claim 1, wherein the display screen is further specifically configured to:
when a user presses the display screen, pressing parameters are obtained, wherein the pressing parameters comprise pressing strength and pressing area;
and when the pressing force is greater than a preset force threshold value and the pressing area is greater than a preset area threshold value, the step of acquiring the fingerprint image is executed by the optical fingerprint identification module.
3. A fingerprint identification method is characterized in that the method is applied to electronic equipment, the electronic equipment comprises an optical fingerprint identification module and a display screen, the optical fingerprint identification module is integrated below the display screen,
the method comprises the following steps:
acquiring a fingerprint image;
matching the fingerprint image with a preset fingerprint template to obtain a matching value;
if the matching value is in a first preset range, acquiring an input position of the fingerprint image, wherein the first preset range is lower than a preset fingerprint identification threshold value, the preset fingerprint identification threshold value is a fingerprint identification threshold value corresponding to direct unlocking operation, and the input position is a position where the center of a pressing area is located;
when the input position is a preset position, executing unlocking operation, wherein the preset position is a position where a user frequently or habitually inputs fingerprints;
wherein, the matching the fingerprint image with a preset fingerprint template to obtain a matching value comprises:
performing texture screening on the fingerprint image to obtain a plurality of target fingerprint textures, wherein the fingerprint image comprises a plurality of fingerprint textures, and the average width of each fingerprint texture in the target fingerprint textures is within a preset width range;
extracting characteristic points of the target fingerprint lines to obtain a first characteristic point set, wherein the first characteristic point set comprises a plurality of characteristic points;
extracting the characteristics of the preset fingerprint template to obtain a second characteristic point set;
matching the first characteristic point set with the second characteristic point set to obtain a matching value;
wherein the method further comprises:
detecting whether the electronic equipment is in a preset low-temperature state, specifically: detecting the ambient temperature through a temperature sensor, wherein the preset low temperature state is-10-0 ℃;
and if the electronic equipment is in a preset low-temperature state, executing the step of acquiring the input position of the fingerprint image.
4. The method of claim 3, further comprising:
when a user presses the display screen, pressing parameters are obtained, wherein the pressing parameters comprise pressing strength and pressing area;
and when the pressing force is greater than a preset force threshold and the pressing area is greater than a preset area threshold, executing the step of acquiring the fingerprint image.
5. The utility model provides a fingerprint identification device, its characterized in that is applied to electronic equipment, electronic equipment includes optics fingerprint identification module and display screen, just optics fingerprint identification module is integrated in the display screen below, the device includes: an acquisition unit, a matching unit and an unlocking unit, wherein,
the acquisition unit is used for acquiring a fingerprint image;
the matching unit is used for matching the fingerprint image with a preset fingerprint template to obtain a matching value;
the obtaining unit is further configured to obtain an input position of the fingerprint image if the matching value is within a first preset range, where the first preset range is lower than a preset fingerprint identification threshold, the preset fingerprint identification threshold is a fingerprint identification threshold corresponding to a direct unlocking operation, and the input position is a position where a center of the pressing area is located;
the unlocking unit is used for executing unlocking operation when the input position is a preset position, and the preset position is a position where a user frequently or habitually inputs fingerprints;
in the aspect of matching the fingerprint image with a preset fingerprint template to obtain a matching value, the matching unit is specifically configured to:
performing texture screening on the fingerprint image to obtain a plurality of target fingerprint textures, wherein the fingerprint image comprises a plurality of fingerprint textures, and the average width of each fingerprint texture in the target fingerprint textures is within a preset width range;
extracting characteristic points of the target fingerprint lines to obtain a first characteristic point set, wherein the first characteristic point set comprises a plurality of characteristic points;
extracting the characteristics of the preset fingerprint template to obtain a second characteristic point set;
matching the first characteristic point set with the second characteristic point set to obtain a matching value;
wherein the apparatus is further specifically configured to:
detecting whether the electronic equipment is in a preset low-temperature state, specifically: detecting the ambient temperature through a temperature sensor, wherein the preset low temperature state is-10-0 ℃;
and if the electronic equipment is in a preset low-temperature state, executing the step of acquiring the input position of the fingerprint image.
6. An electronic device comprising a processor, a memory for storing one or more programs and configured for execution by the processor, the programs comprising instructions for performing the steps of the method of claim 3 or 4.
7. A computer-readable storage medium, in which a computer program for electronic data exchange is stored, wherein the computer program causes a computer to perform the method according to claim 3 or 4.
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| CN110008675B (en) * | 2019-03-28 | 2021-07-20 | 南京维沃软件技术有限公司 | Fingerprint identification method and mobile terminal |
| CN110286833B (en) * | 2019-06-10 | 2021-06-15 | Oppo广东移动通信有限公司 | Shortcut function starting method, electronic device and computer readable storage medium |
| CN110400615A (en) * | 2019-07-24 | 2019-11-01 | 郑静 | Medical data processing method and Related product |
| CN110851811B (en) * | 2019-11-15 | 2022-02-15 | 美的集团股份有限公司 | Method and device for preventing misoperation of equipment |
| CN110909332B (en) * | 2019-11-15 | 2022-03-04 | 美的集团股份有限公司 | Method and device for preventing misoperation of equipment |
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| CN103995671A (en) * | 2014-06-06 | 2014-08-20 | 深圳市亚略特生物识别科技有限公司 | Touch screen unlocking method and device |
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