CN113312599A - Fingerprint unlocking method and device, electronic equipment and computer readable storage medium - Google Patents
Fingerprint unlocking method and device, electronic equipment and computer readable storage medium Download PDFInfo
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- 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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- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
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- G06F1/32—Means for saving power
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Abstract
The invention discloses a fingerprint unlocking method and device, electronic equipment and a computer readable storage medium, wherein the method comprises the following steps: when a touch signal of a user is received, acquiring the brightness of the current environment light; when the current ambient light brightness is smaller than a preset brightness threshold value, reducing the screen fingerprint detection area; when the touch position corresponding to the touch signal is in the reduced screen fingerprint detection area, lightening the screen corresponding to the touch position, and acquiring fingerprint information of a user; and fingerprint unlocking is carried out according to the fingerprint information of the user. Therefore, the method processes the screen fingerprint detection area according to the ambient light brightness, can effectively avoid mistaken touch unlocking of fingers caused by a large-area fingerprint identification area under the advantage of unlocking of the fingerprints under a large-area screen, and can also reduce the power consumption of the screen.
Description
Technical Field
The present invention relates to the field of fingerprint identification technologies, and in particular, to a fingerprint unlocking method, a fingerprint unlocking device, an electronic device, and a computer-readable storage medium.
Background
Currently, more and more terminal manufacturers pursue the positive display effect and the technological sense of the mobile phone, and the full-screen mobile phone is promoted to become the most popular product at present. In order to achieve the display effect of a full screen, besides the design of the screen, the technology of fingerprint identification under the screen is also indispensable. The fingerprint technology under the screen cancels the fingerprint identification key of an entity, and the sensor module is hidden under the display screen. The main realization mode of the under-screen fingerprint identification technology is as follows: the display screen below is arranged in to the fingerprint identification module, and when the user pressed the display screen that the fingerprint identification region corresponds, the fingerprint identification module can gather fingerprint image or with the corresponding light reflection information of fingerprint to realize fingerprint identification's function, wherein, the fingerprint identification region generally shows with the hi-lite, so that the user discerns.
The existing device supporting screen fingerprints basically performs single-finger fingerprint identification in a small area fixed on a screen, as shown in fig. 1, when identity authentication is required, only a single finger is pressed in a fixed circular spot area. At present, large-area underscreen fingerprint identification is in the technical perfection stage, and has the potential of rapidly entering the mobile phone market and rapidly popularizing. As shown in fig. 2, the identification area of the fingerprint under the screen, that is, the area of the fingerprint unlocking area s1, can be customized according to the requirements of the terminal, and can realize single-finger and double-finger areas, half-screen, or even full-screen fingerprint identification. Fingerprint technique has the blind equipment of solving under the large tracts of land screen, promotes payment security level, and customization APP presses advantages such as function, will become the unblock mode of future mainstream.
With traditional small region's single-point fingerprint identification different, the different position unblocks of display screen and payment function can be realized to large tracts of land fingerprint identification module, and the user presses the display screen region that the fingerprint module corresponds at will with the finger, all can realize unblock and payment, provides convenience for the user. However, large area fingerprinting also presents a more serious false touch problem than single point fingerprinting. When user's cell-phone was placed in the pocket, because the cell-phone has bigger unblock area, when the finger touch the unblock region carelessly, the probability greatly increased of mistake touch unblock has still increased the screen consumption.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, a first objective of the present invention is to provide a fingerprint unlocking method, which processes a screen fingerprint detection area according to ambient light brightness, and effectively avoids finger touch unlocking caused by a large area of fingerprint identification area under the advantage of large area of screen fingerprint unlocking, and can also reduce screen power consumption.
The second purpose of the invention is to provide a fingerprint unlocking device.
A third object of the invention is to propose an electronic device.
A fourth object of the invention is to propose a computer-readable storage medium.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides a fingerprint unlocking method, including the following steps: when a touch signal of a user is received, acquiring the brightness of the current environment light; when the current ambient light brightness is smaller than a preset brightness threshold value, reducing a screen fingerprint detection area; when the touch position corresponding to the touch signal is in the reduced screen fingerprint detection area, lightening the screen corresponding to the touch position, and acquiring the fingerprint information of the user; and fingerprint unlocking is carried out according to the fingerprint information of the user.
According to the fingerprint unlocking method, when a touch signal of a user is received, the current environment light brightness is obtained, when the current environment light brightness is smaller than a preset brightness threshold value, the screen fingerprint detection area is reduced, when the touch position corresponding to the touch signal is in the reduced screen fingerprint detection area, the screen corresponding to the touch position is lightened, the fingerprint information of the user is obtained, and fingerprint unlocking is carried out according to the fingerprint information of the user. Therefore, the method processes the screen fingerprint detection area according to the brightness of the environment light, effectively avoids the mistaken touch unlocking of the finger caused by the large-area fingerprint identification area under the advantage of large-area screen fingerprint unlocking, and can reduce the power consumption of the screen.
In addition, according to the above embodiment of the present invention, the following additional technical features may be provided:
according to an embodiment of the present invention, the fingerprint unlocking according to the fingerprint information of the user includes: acquiring a finger pressing angle of the user according to the fingerprint information of the user; and when the fingerprint information of the user is effective and the finger pressing angle of the user is within a preset angle range, determining that the fingerprint unlocking is successful.
According to an embodiment of the present invention, acquiring a finger pressing angle of the user according to the fingerprint information of the user includes: extracting fingerprint characteristic points in the fingerprint information of the user; and determining the finger pressing angle of the user according to the inclination angle of the connecting line of any two fingerprint characteristic points in the fingerprint characteristic points.
According to an embodiment of the present invention, the fingerprint feature points include: at least one of an end point of the fingerprint ridge line and a bifurcation point of the fingerprint ridge line.
According to an embodiment of the present invention, the fingerprint unlocking according to the fingerprint information of the user further includes: and when the fingerprint information of the user is invalid and/or the finger pressing angle of the user is not within a preset angle range, determining that the fingerprint unlocking fails.
According to an embodiment of the present invention, the fingerprint unlocking method further includes: when the current ambient light brightness is larger than or equal to the preset brightness threshold, directly lightening a screen corresponding to the touch position, and acquiring fingerprint information of the user; and when the fingerprint information of the user is valid, determining that the fingerprint unlocking is successful.
According to an embodiment of the invention, when the touch position corresponding to the touch signal is not in the reduced screen fingerprint detection area, the screen is kept in the off state.
In order to achieve the above object, a second aspect of the present invention provides a fingerprint unlocking device, including: the first acquisition module is used for acquiring the current ambient light brightness when receiving a touch signal of a user; the reducing module is used for reducing the screen fingerprint detection area when the current ambient light brightness is smaller than a preset brightness threshold; the second acquisition module is used for lightening the screen corresponding to the touch position and acquiring the fingerprint information of the user when the touch position corresponding to the touch signal is in the reduced screen fingerprint detection area; and the unlocking processing module is used for carrying out fingerprint unlocking according to the fingerprint information of the user.
According to the fingerprint unlocking device provided by the embodiment of the invention, when a touch signal of a user is received, the brightness of the current environment is obtained through the first obtaining module, when the brightness of the current environment is smaller than a preset brightness threshold value, the screen fingerprint detection area is reduced through the reducing module, when the touch position corresponding to the touch signal is in the reduced screen fingerprint detection area, the screen corresponding to the touch position is lightened, the fingerprint information of the user is obtained through the second obtaining module, and the unlocking processing module carries out fingerprint unlocking according to the fingerprint information of the user. Therefore, the device processes the screen fingerprint detection area according to the ambient light brightness, effectively avoids the mistaken touch unlocking of the finger caused by the large-area fingerprint identification area under the advantage of utilizing the large-area screen fingerprint unlocking, and can also reduce the screen power consumption.
To achieve the above object, an electronic device according to a third aspect of the present invention includes: the fingerprint unlocking method comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein when the processor executes the program, the fingerprint unlocking method is realized.
According to the electronic equipment provided by the embodiment of the invention, by executing the fingerprint unlocking method, the finger mistaken touch unlocking caused by a large-area fingerprint identification area can be effectively avoided under the advantage of large-area screen fingerprint unlocking, and meanwhile, the screen power consumption can be reduced.
To achieve the above object, a computer-readable storage medium is provided in an embodiment of a fourth aspect of the present invention, and has a computer program stored thereon, where the computer program is executed by a processor to implement the fingerprint unlocking method described above.
According to the computer-readable storage medium of the embodiment of the invention, by executing the fingerprint unlocking method, the mistaken touch unlocking of a finger caused by a large-area fingerprint identification area can be effectively avoided under the advantage of large-area screen fingerprint unlocking, and meanwhile, the power consumption of a screen can be reduced.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic diagram of a small-area single-finger unlocking device in the related art;
FIG. 2 is a schematic diagram of a large-area single-finger unlocking apparatus in the related art;
fig. 3 is a flowchart of a fingerprint unlocking method according to an embodiment of the present invention.
FIG. 4 is a diagram illustrating a change of a fingerprint detection area of a screen according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of effective pressing by a user's finger according to one embodiment of the present invention;
FIG. 6 is a schematic diagram of a user's finger invalid press according to one embodiment of the present invention;
FIG. 7 is a diagram illustrating fingerprint feature points in fingerprint information, according to an embodiment of the present invention;
FIG. 8 is a flowchart of a fingerprint unlocking method according to an embodiment of the present invention;
fig. 9 is a block diagram illustrating a fingerprint unlocking device according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A fingerprint unlocking method and apparatus, an electronic device, and a computer-readable storage medium according to embodiments of the present invention are described below with reference to the accompanying drawings.
Taking the example of applying the fingerprint unlocking method to the mobile terminal, when the user places the mobile terminal at a place (such as a clothes pocket) with low ambient light brightness, the user is likely to unlock the device due to the mistaken touch of the finger, which causes trouble in use, or the user does not unlock the mobile terminal due to the mistaken touch of the finger, but causes the screen to be lighted, which increases the power consumption of the screen. It should be noted that the fingerprint unlocking method is not limited to be applied to the mobile terminal, and can be applied to any scene of fingerprint unlocking.
In the following embodiments, the fingerprint unlocking method is applied to the mobile terminal as an example for detailed description.
Fig. 3 is a flowchart of a fingerprint unlocking method according to an embodiment of the present invention.
As shown in fig. 3, the fingerprint unlocking method according to the embodiment of the present invention may include the following steps:
and S1, acquiring the current ambient light brightness when the touch signal of the user is received.
Specifically, when a user touches the screen of the mobile terminal with a finger, the screen of the mobile terminal receives a touch signal of the user and calls an ambient light sensor built in the mobile terminal, so that the current ambient light brightness is convenient to detect.
And S2, when the current ambient light brightness is smaller than the preset brightness threshold, reducing the screen fingerprint detection area. The preset brightness threshold may be calibrated according to an actual situation, for example, the preset ambient brightness threshold may be 5% of the maximum light intensity detected by the ambient light sensor.
In other words, when the current ambient light brightness is smaller than the preset brightness threshold, the mobile terminal is controlled to enter the false touch prevention mode, at the moment, the screen fingerprint detection area is reduced, the area of the screen fingerprint detection area is reduced, and the probability of false touch of the fingerprint is reduced. In an embodiment of the present invention, the reduction processing may be performed in a manner of reducing according to a preset ratio.
According to an embodiment of the present invention, the fingerprint unlocking method may further include: when the current ambient light brightness is larger than or equal to a preset brightness threshold, directly lightening a screen corresponding to the touch position, and acquiring fingerprint information of a user; and when the fingerprint information of the user is valid, determining that the fingerprint unlocking is successful.
Specifically, when the current ambient light brightness is larger than or equal to a preset brightness threshold value, it is indicated that the user does not put the mobile terminal into a pocket at the moment, the mobile terminal directly enters a normal unlocking mode, when a finger of the user presses a fingerprint detection area of the screen, the screen corresponding to a touch position is directly lightened according to the touch position of the finger of the user, fingerprint information of the user is collected and compared with fingerprint information input by the user in advance in a database, and if the comparison is successful, the fingerprint information of the user is considered to be effective information, and the screen of the mobile terminal is unlocked. Otherwise, if the comparison is unsuccessful, the fingerprint information of the user is considered as invalid information, and the unlocking fails.
And S3, when the touch position corresponding to the touch signal is in the reduced screen fingerprint detection area, lighting the screen corresponding to the touch position, and acquiring the fingerprint information of the user.
According to one embodiment of the invention, when the touch position corresponding to the touch signal is not in the reduced screen fingerprint detection area, the screen is kept in the off state.
Specifically, as shown in fig. 4, it is assumed that the original screen fingerprint detection area is a fingerprint unlocking area s1 of W1 × L1 (where a corresponding fingerprint module is located right below the unlocking area s1 screen), the reduced screen fingerprint detection area is a fingerprint unlocking area s2 of W2 × L2, when the touch position is located in the fingerprint unlocking area s2, the screen at the pressed position (touch position) is turned on, and a fingerprint image of the user is collected and processed to obtain fingerprint information of the user; when the touch position is located in the area outside the fingerprint unlocking area s2, the screen sends out vibration prompt and does not light up, so that the power consumption caused by mistakenly touching and lighting the screen can be reduced. When judging whether the touch position is located in the fingerprint unlocking region s2, the touch position can be determined according to the central point of the touch position, the central point of the touch position is located in the fingerprint unlocking region s2, the touch position is considered to be located in the fingerprint unlocking region s2, and when the central point of the touch position is located outside the fingerprint unlocking region s2, the touch position is considered to be located outside the fingerprint unlocking region s 2. It is of course also possible to determine the entire touch position, and when all of the touch positions are located within the fingerprint unlocking region s2, the touch positions are considered to be located within the fingerprint unlocking region s2, and when all of the touch positions are not completely located within the fingerprint unlocking region s2, the touch positions are considered to be located outside the fingerprint unlocking region s 2.
It should be noted that fig. 4 is only an embodiment of the present invention, and the reduced screen fingerprint detection area may be set according to actual situations.
And S4, fingerprint unlocking is carried out according to the fingerprint information of the user.
According to one embodiment of the invention, fingerprint unlocking is carried out according to fingerprint information of a user, and the method comprises the following steps: acquiring a finger pressing angle of a user according to fingerprint information of the user; and when the fingerprint information of the user is effective and the finger pressing angle of the user is within a preset angle range, determining that the fingerprint unlocking is successful. The preset angle range may be calibrated according to actual conditions, for example, the preset angle range may be [ -30 °, 30 ° ].
Specifically, in the normal unlocking mode, when the fingerprint information of the user is matched with the fingerprint information input in advance by the database user, the mobile terminal can be unlocked directly, and the unlocking is not influenced by the pressing angle of the finger. When the mobile terminal is placed in a pocket (the current ambient light brightness is smaller than the preset brightness threshold), the angle of the finger touching the screen is random, and the collected fingerprint angle is also random. When the acquired fingerprint information of the user is matched with the fingerprint information input by the database user in advance, whether the finger pressing angle of the user meets the requirement or not needs to be judged, and if the finger pressing angle of the user is within the range of the specified pressing direction threshold angle (-30 degrees), the unlocking is determined to be successful; if the finger pressing angle of the user is not within the prescribed pressing direction threshold angle range (-30 deg.), the unlocking fails. For example, as shown in fig. 5, the angle between the finger and the screen (the finger pressing angle of the user) is α, which is smaller than 30 °, and the unlocking can be successfully performed under the condition that the fingerprint information of the user is valid; as shown in fig. 6, the finger-to-screen angle (the finger pressing angle of the user) is β, which is greater than 30 °, and the unlocking cannot be successfully performed regardless of whether the fingerprint information of the user is valid or not.
Further, according to an embodiment of the present invention, acquiring a finger pressing angle of a user according to fingerprint information of the user includes: extracting fingerprint characteristic points in fingerprint information of a user; and determining the finger pressing angle of the user according to the inclination angle of the connecting line of any two fingerprint characteristic points in the fingerprint characteristic points.
In one embodiment of the present invention, the fingerprint feature points may include: at least one of an end point of the fingerprint ridge line and a bifurcation point of the fingerprint ridge line. It is understood that the fingerprint feature points are not limited to end points and branch points, but may also be center points, break points, turning points, etc. of fingerprint ridges.
According to an embodiment of the present invention, the fingerprint unlocking according to the fingerprint information of the user further includes: and when the fingerprint information of the user is invalid and/or the finger pressing angle of the user is not within the preset angle range, determining that the fingerprint unlocking fails.
Specifically, the example is given by taking a branch point of a fingerprint ridge line as a fingerprint feature point. As shown in fig. 7, after the fingerprint image of the user is captured, the image is processed to obtain fingerprint information of the user, and feature extraction is performed to obtain fingerprint feature points (for example, bifurcation points of fingerprint ridges within circles in fig. 7) in the fingerprint information. Supposing that an image pressed by a finger in parallel with the Y-axis direction of the screen is taken as a reference and taken as a preset finger direction, the bifurcation points of fingerprint ridge lines are distributed as shown in figure 7, any two fingerprint feature points A and B are selected to be connected into a line, and the inclination angle of the connection line of the fingerprint feature points AB is taken as the finger pressing angle of a user, namely the finger pressing angle is
The included angle between the Y axis direction and the Y axis direction is delta when
When the angle delta is formed with the Y-axis direction, the finger is pressed on the screen of the mobile terminal, and the preset finger pressing angle range is set to be +/-30 degrees, namely (-30 degrees + delta) to (30 degrees + delta) by taking the angle delta as a reference. When the finger is pressed obliquely left or right and the pressing angle of the finger is (-30 ° + delta) - (30 ° + delta), the unlocking is considered to be successful on the premise that the collected fingerprint information is effective fingerprint information, and if the pressing angle of the finger is out of (-30 ° + delta) - (30 ° + delta), the unlocking is considered to be failed.
In summary, whether the mobile terminal enters the normal unlocking mode or the false touch prevention mode is determined by detecting the brightness of the current environment, when the brightness of the current environment is smaller than the preset brightness threshold, the screen fingerprint detection area is reduced, the area of the screen fingerprint detection area is reduced, the probability of false touch of the fingerprint is reduced, and then when the touch position corresponding to the touch signal is in the reduced screen fingerprint detection area, whether successful unlocking can be performed is determined according to the fingerprint information of the user and the finger pressing angle of the user, so that the probability of false touch of the fingerprint is further reduced. Meanwhile, when the touch position corresponding to the touch signal is not in the reduced screen fingerprint detection area, the screen is not lightened, and the power consumption of the screen is reduced.
As a specific example of the present invention, as shown in fig. 8, the fingerprint unlocking method may include the following steps:
s101, when a touch signal of a user is received, the current ambient light brightness is obtained.
S102, judging whether the current ambient light brightness is smaller than a preset brightness threshold value. If yes, go to step S107; if not, step S103 is performed.
S103, controlling the mobile terminal to enter a normal unlocking mode, lighting a screen corresponding to the touch position, and acquiring fingerprint information of the user.
And S104, judging whether the fingerprint information of the user is effective. If yes, go to step S105; if not, step S106 is performed.
And S105, determining that the fingerprint unlocking is successful.
And S106, determining that the fingerprint unlocking fails.
S107, controlling the mobile terminal to enter a false touch prevention mode, and reducing the screen fingerprint detection area.
And S108, judging whether the touch position corresponding to the touch signal is in the reduced screen fingerprint detection area. If yes, go to step S109; if not, step S112 is performed.
And S109, lightening the screen corresponding to the touch position, and acquiring the fingerprint information of the user.
And S110, acquiring the finger pressing angle of the user according to the fingerprint information of the user.
And S111, judging whether the fingerprint information of the user is effective or not, wherein the finger pressing angle of the user is within a preset angle range. If yes, go to step S105; if not, step S106 is performed.
And S112, keeping the screen in a turned-off state.
In summary, according to the fingerprint unlocking method of the embodiment of the invention, when a touch signal of a user is received, the current environment light brightness is obtained, when the current environment light brightness is smaller than a preset brightness threshold, the screen fingerprint detection area is reduced, when a touch position corresponding to the touch signal is in the reduced screen fingerprint detection area, the screen corresponding to the touch position is lightened, the fingerprint information of the user is obtained, and fingerprint unlocking is performed according to the fingerprint information of the user. Therefore, the method processes the screen fingerprint detection area according to the brightness of the environment light, effectively avoids the mistaken touch unlocking of the finger caused by the large-area fingerprint identification area under the advantage of large-area screen fingerprint unlocking, and can reduce the power consumption of the screen.
Corresponding to the embodiment, the invention further provides a fingerprint unlocking device.
Fig. 9 is a block diagram illustrating a fingerprint unlocking device according to an embodiment of the present invention.
As shown in fig. 9, the fingerprint unlocking device according to the embodiment of the present invention may include: a first acquisition module 10, a reduction module 20, a second acquisition module 30 and an unlocking processing module 40.
The first obtaining module 10 is configured to obtain the current ambient light brightness when receiving a touch signal of a user. The reducing module 20 is configured to reduce the fingerprint detection area of the screen when the current ambient light brightness is less than a preset brightness threshold. The second obtaining module 30 is configured to light the screen corresponding to the touch position when the touch position corresponding to the touch signal is in the reduced screen fingerprint detection area, and obtain fingerprint information of the user. The unlocking processing module 40 is used for fingerprint unlocking according to the fingerprint information of the user.
According to an embodiment of the present invention, the unlocking processing module 40 performs fingerprint unlocking according to fingerprint information of a user, specifically, is configured to obtain a finger pressing angle of the user according to the fingerprint information of the user; and when the fingerprint information of the user is effective and the finger pressing angle of the user is within a preset angle range, determining that the fingerprint unlocking is successful.
According to an embodiment of the present invention, the unlocking processing module 40 obtains a finger pressing angle of the user according to the fingerprint information of the user, and is specifically configured to extract fingerprint feature points in the fingerprint information of the user; and determining the finger pressing angle of the user according to the inclination angle of the connecting line of any two fingerprint characteristic points in the fingerprint characteristic points.
According to one embodiment of the present invention, the fingerprint feature points include: at least one of an end point of the fingerprint ridge line and a bifurcation point of the fingerprint ridge line.
According to an embodiment of the present invention, the unlocking processing module 40 is further configured to determine that the fingerprint unlocking is failed when the fingerprint information of the user is invalid and/or the finger pressing angle of the user is not within the preset angle range.
According to an embodiment of the present invention, the unlocking processing module 40 is further configured to, when the current ambient light brightness is greater than or equal to the preset brightness threshold, directly light up a screen corresponding to the touch position, and acquire fingerprint information of the user; and when the fingerprint information of the user is valid, determining that the fingerprint unlocking is successful.
According to an embodiment of the present invention, the unlocking processing module 40 is further configured to keep the screen in the off state when the touch position corresponding to the touch signal is not in the reduced screen fingerprint detection area.
It should be noted that details that are not disclosed in the fingerprint unlocking device according to the embodiment of the present invention refer to details that are disclosed in the fingerprint unlocking method according to the embodiment of the present invention, and are not described herein again in detail.
According to the fingerprint unlocking device provided by the embodiment of the invention, when a touch signal of a user is received, the brightness of the current environment is obtained through the first obtaining module, when the brightness of the current environment is smaller than a preset brightness threshold value, the screen fingerprint detection area is reduced through the reducing module, when the touch position corresponding to the touch signal is in the reduced screen fingerprint detection area, the screen corresponding to the touch position is lightened, the fingerprint information of the user is obtained through the second obtaining module, and the unlocking processing module carries out fingerprint unlocking according to the fingerprint information of the user. Therefore, the device processes the screen fingerprint detection area according to the ambient light brightness, effectively avoids the mistaken touch unlocking of the finger caused by the large-area fingerprint identification area under the advantage of utilizing the large-area screen fingerprint unlocking, and can also reduce the screen power consumption.
The invention further provides an electronic device corresponding to the embodiment.
The electronic device of the embodiment of the invention can comprise: the fingerprint unlocking method comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein when the processor executes the program, the fingerprint unlocking method is realized.
According to the electronic equipment provided by the embodiment of the invention, by executing the fingerprint unlocking method, the finger mistaken touch unlocking caused by a large-area fingerprint identification area can be effectively avoided under the advantage of large-area screen fingerprint unlocking, and meanwhile, the screen power consumption can be reduced.
The invention further provides a computer readable storage medium corresponding to the above embodiment.
The computer readable storage medium of the embodiment of the present invention stores thereon a computer program, which when executed by a processor implements the fingerprint unlocking method described above.
By executing the fingerprint unlocking method, the computer-readable storage medium of the embodiment of the invention can effectively avoid the mistaken touch unlocking of a finger caused by a large-area fingerprint identification area under the advantage of large-area screen fingerprint unlocking, and can also reduce the screen power consumption.
It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A fingerprint unlocking method is characterized by comprising the following steps:
when a touch signal of a user is received, acquiring the brightness of the current environment light;
when the current ambient light brightness is smaller than a preset brightness threshold value, reducing a screen fingerprint detection area;
when the touch position corresponding to the touch signal is in the reduced screen fingerprint detection area, lightening the screen corresponding to the touch position, and acquiring the fingerprint information of the user;
and fingerprint unlocking is carried out according to the fingerprint information of the user.
2. The fingerprint unlocking method according to claim 1, wherein the fingerprint unlocking according to the fingerprint information of the user comprises:
acquiring a finger pressing angle of the user according to the fingerprint information of the user;
and when the fingerprint information of the user is effective and the finger pressing angle of the user is within a preset angle range, determining that the fingerprint unlocking is successful.
3. The fingerprint unlocking method according to claim 2, wherein the obtaining of the finger pressing angle of the user according to the fingerprint information of the user comprises:
extracting fingerprint characteristic points in the fingerprint information of the user;
and determining the finger pressing angle of the user according to the inclination angle of the connecting line of any two fingerprint characteristic points in the fingerprint characteristic points.
4. The fingerprint unlocking method according to claim 3, wherein the fingerprint feature points include: at least one of an end point of the fingerprint ridge line and a bifurcation point of the fingerprint ridge line.
5. The fingerprint unlocking method according to claim 2, wherein fingerprint unlocking is performed according to the fingerprint information of the user, and further comprising:
and when the fingerprint information of the user is invalid and/or the finger pressing angle of the user is not within a preset angle range, determining that the fingerprint unlocking fails.
6. The fingerprint unlocking method according to any one of claims 1 to 5, further comprising:
when the current ambient light brightness is larger than or equal to the preset brightness threshold, directly lightening a screen corresponding to the touch position, and acquiring fingerprint information of the user; and when the fingerprint information of the user is valid, determining that the fingerprint unlocking is successful.
7. The fingerprint unlocking method according to any one of claims 1 to 5, wherein when the touch position corresponding to the touch signal is not in the reduced screen fingerprint detection area, the screen is kept in a turned-off state.
8. A fingerprint unlocking device, comprising:
the first acquisition module is used for acquiring the current ambient light brightness when receiving a touch signal of a user;
the reducing module is used for reducing the screen fingerprint detection area when the current ambient light brightness is smaller than a preset brightness threshold;
the second acquisition module is used for lightening the screen corresponding to the touch position and acquiring the fingerprint information of the user when the touch position corresponding to the touch signal is in the reduced screen fingerprint detection area;
and the unlocking processing module is used for carrying out fingerprint unlocking according to the fingerprint information of the user.
9. An electronic device, comprising: memory, processor and computer program stored on the memory and executable on the processor, the processor implementing the fingerprint unlocking method according to any one of claims 1-7 when executing the program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the fingerprint unlocking method according to any one of claims 1-7.
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