CN111506207A - Method and device for determining lighting area during identification of fingerprint under screen - Google Patents
Method and device for determining lighting area during identification of fingerprint under screen Download PDFInfo
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- CN111506207A CN111506207A CN201910092729.9A CN201910092729A CN111506207A CN 111506207 A CN111506207 A CN 111506207A CN 201910092729 A CN201910092729 A CN 201910092729A CN 111506207 A CN111506207 A CN 111506207A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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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
- G06V40/13—Sensors therefor
Abstract
The disclosure relates to a method and a device for determining a lighting area during fingerprint identification under a screen. The method comprises the following steps: determining a contact area between an object placed on a screen and the screen; acquiring the area of an overlapping area of the contact area and a fingerprint identification effective area, wherein the fingerprint identification effective area is an area with an off-screen fingerprint identification function on the screen; and determining a lighting area of the screen when the fingerprint under the screen is identified according to the area of the overlapping area, wherein the area of the lighting area is smaller than or equal to the area of the overlapping area. In the technical scheme, because the area of the lighting area is smaller than or equal to the area of the overlapping area, when the lighting area is lighted, the light emitted by the lighting area can be shielded by an object placed on a screen, so that the condition that the light emitted by the lighting area stimulates eyes of a user under the condition of darker ambient brightness is avoided, and the user experience is improved.
Description
Technical Field
The present disclosure relates to the field of terminal control technologies, and in particular, to a method and an apparatus for determining a lighting area during an identification of an on-screen fingerprint.
Background
With the continuous upgrade of mobile phone hardware, large-screen mobile phones are more and more popular and are favored by more and more users. In order to pursue a higher screen occupation ratio, many mobile phone manufacturers choose to set the fingerprint identification module below the touch screen, that is, set the fingerprint identification module below a preset area of the touch screen, so as to form a fingerprint identification effective area. When fingerprint identification is needed, a user can place a finger on a touch screen of the mobile phone. The mobile phone firstly detects whether a user finger is on through the touch screen, and if so, the touch screen corresponding to the fingerprint identification effective area is lightened to generate a light source for lightening the user finger. At the moment, the light of the light source is reflected by the finger of the user to form reflected light, and the fingerprint identification module arranged below the fingerprint identification effective area can acquire the fingerprint information of the finger of the user according to the reflected light so as to identify the fingerprint information.
Disclosure of Invention
To overcome the problems in the related art, embodiments of the present disclosure provide a method and an apparatus for determining a lighting area when performing fingerprint identification under a screen. The technical scheme is as follows:
according to a first aspect of the embodiments of the present disclosure, there is provided a method for determining a lighting area when performing fingerprint identification under a screen, including:
determining a contact area between an object placed on a screen and the screen;
acquiring the area of an overlapping area of the contact area and a fingerprint identification effective area, wherein the fingerprint identification effective area is an area with an off-screen fingerprint identification function on the screen;
and determining a lighting area of the screen when the fingerprint under the screen is identified according to the area of the overlapping area, wherein the area of the lighting area is smaller than or equal to the area of the overlapping area.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the terminal can confirm the district of lighting of screen when carrying out fingerprint identification under the screen according to the area of the contact area between object and the screen of carrying out fingerprint identification and the overlap region of fingerprint identification effective area, because the area of the district of should lighting is less than or equal to the area of overlap region, consequently when the district is lighted to this, the object that its light of sending can be placed on the screen shelters from, and then avoids the light that should light the district and send to produce amazing condition to user's eyes under the darker condition of ambient brightness, user experience has been improved.
In one embodiment, the determining, according to the area of the overlap region, a lighting region of the screen when performing the fingerprint recognition under the screen includes:
and if the area of the overlapping area is within a preset range, setting the overlapping area as the lighting area.
In one embodiment, the determining, according to the area of the overlap region, a lighting region of the screen when performing the fingerprint recognition under the screen includes:
and if the area of the overlapping area is smaller than or equal to a first area threshold value, forbidding to set the lighting area.
In one embodiment, the method further comprises:
and displaying prompt information, wherein the prompt information is used for prompting a user to move the object according to the indication direction of the prompt information.
In one embodiment, the determining, according to the area of the overlap region, a lighting region of the screen when performing the fingerprint recognition under the screen includes:
and if the area of the overlapping area is larger than or equal to a second area threshold value, setting the fingerprint identification effective area as the lighting area.
According to a second aspect of the embodiments of the present disclosure, there is provided an apparatus for determining a lighting area when performing fingerprint recognition under a screen, including:
a first determination module for determining a contact area between an object placed on a screen and the screen;
the acquisition module is used for acquiring the area of an overlapping area of the contact area and a fingerprint identification effective area, wherein the fingerprint identification effective area is an area with an off-screen fingerprint identification function on the screen;
and the second determining module is used for determining a lighting area of the screen during the screen fingerprint identification according to the area of the overlapping area, wherein the area of the lighting area is smaller than or equal to the area of the overlapping area.
In one embodiment, the second determining module comprises:
and the first setting submodule is used for setting the overlapping area as the lighting area if the area of the overlapping area is within a preset range.
In one embodiment, the second determining module comprises:
and the forbidding submodule is used for forbidding to set the lighting area if the area of the overlapping area is less than or equal to a first area threshold value.
In one embodiment, the apparatus further comprises:
and the display module is used for displaying prompt information, and the prompt information is used for prompting a user to move the object according to the indication direction of the prompt information.
In one embodiment, the second determining module comprises:
and the second setting submodule is used for setting the fingerprint identification effective area as the lighting area if the area of the overlapping area is larger than or equal to a second area threshold value.
According to a third aspect of the embodiments of the present disclosure, there is provided an apparatus for determining a lighting area when performing an off-screen fingerprint recognition, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
determining a contact area between an object placed on a screen and the screen;
acquiring the area of an overlapping area of the contact area and a fingerprint identification effective area, wherein the fingerprint identification effective area is an area with an off-screen fingerprint identification function on the screen;
and determining a lighting area of the screen when the fingerprint under the screen is identified according to the area of the overlapping area, wherein the area of the lighting area is smaller than or equal to the area of the overlapping area.
According to a fourth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the method according to any one of the embodiments of the first aspect.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1a is a flow chart illustrating a method of determining a lighted area when performing off-screen fingerprint recognition, according to an exemplary embodiment.
FIG. 1b is a flowchart illustrating a method of determining a lit area when performing off-screen fingerprint recognition according to an exemplary embodiment.
FIG. 1c is a flow chart illustrating a method of determining a lit area when performing off-screen fingerprint recognition according to an exemplary embodiment.
Fig. 2a is a schematic structural diagram illustrating an apparatus for determining a lighting area when performing fingerprint recognition under a screen according to an exemplary embodiment.
Fig. 2b is a schematic structural diagram illustrating an apparatus for determining a lighting area when performing fingerprint recognition under a screen according to an exemplary embodiment.
Fig. 2c is a schematic structural diagram illustrating an apparatus for determining a lighting area when performing fingerprint recognition under a screen according to an exemplary embodiment.
Fig. 2d is a schematic structural diagram illustrating an apparatus for determining a lighting area when performing fingerprint recognition under a screen according to an exemplary embodiment.
Fig. 2e is a schematic structural diagram illustrating an apparatus for determining a lighting area when performing fingerprint recognition under a screen according to an exemplary embodiment.
Fig. 3 is a block diagram illustrating a configuration of an apparatus for determining a lit area when performing an off-screen fingerprint recognition according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The technical scheme provided by the embodiment of the disclosure relates to a terminal, which can be a mobile phone, a tablet personal computer, a smart watch and other devices with an underscreen fingerprint identification function. Taking a mobile phone as an example, when a user needs to unlock the mobile phone or perform fingerprint payment, the user can place a finger on a screen of the mobile phone. And if the mobile phone determines that the finger of the user is placed in the effective fingerprint identification area, lightening the touch screen corresponding to the effective fingerprint identification area, and facilitating fingerprint identification. However, the effective fingerprint identification area is large, the finger of the user is difficult to completely cover, and when the ambient brightness is low, the light emitted from the part which is not covered by the finger of the user may stimulate the eyes of the user, so that the user experience is poor. In the technical scheme provided by the embodiment of the disclosure, the terminal can determine the lighting area of the screen when performing fingerprint identification under the screen according to the area of the overlapping area of the contact area between the object performing fingerprint identification and the screen and the effective area of fingerprint identification, because the area of the lighting area is smaller than or equal to the area of the overlapping area, when the lighting area is lighted, the object on the screen can be shielded by the light emitted by the lighting area, and then the situation that the light emitted by the lighting area stimulates the eyes of the user under the condition of darker ambient brightness is avoided, and the user experience is improved.
Fig. 1a is a flowchart illustrating a method for determining a lighting area when performing fingerprint recognition under a screen, which is applied to a terminal, according to an exemplary embodiment, and includes the following steps 101 to 103, as shown in fig. 1 a:
in step 101, a contact area between an object placed on a screen and the screen is determined.
For example, the screen may be a touch screen provided in the terminal, and the object may be any object with surface texture, and preferably, the object may be a finger of a user.
When the user needs to perform fingerprint recognition, e.g. to perform an unlock or a fingerprint payment, a finger may be placed on the screen. Because the screen is a touch screen, when a user finger is placed on the screen, the user finger and the surface of the touch screen form a coupling capacitor, and each contact point between the user finger and the touch screen can suck a current from the touch screen through the coupling capacitor. The current absorbed by each contact point respectively flows out of the electrodes on the four corners of the touch screen, and the current flowing through the four electrodes is in direct proportion to the distances from the contact points to the four corners. At the moment, the processor of the terminal can obtain the position of each contact point by accurately calculating the four current proportions, and the contact area between the finger of the user and the touch screen can be formed by combining a plurality of contact points.
In step 102, the area of the overlapping area of the contact area and the effective fingerprint identification area is obtained, wherein the effective fingerprint identification area is an area with an off-screen fingerprint identification function on a screen.
In an example, a fingerprint identification module is arranged below a touch screen of the terminal, and an area on the touch screen corresponding to the fingerprint identification module is a fingerprint identification effective area, that is, the fingerprint identification effective area of the terminal is a known and fixed area of the terminal. After determining the contact area between the finger of the user and the touch screen, the terminal may compare the contact area with the fingerprint identification effective area, and then determine an overlapping area of the two areas, thereby determining the area of the overlapping area.
In step 103, a lighting area of the screen when performing the underscreen fingerprint recognition is determined according to the area of the overlap area, and the area of the lighting area is smaller than or equal to the area of the overlap area.
For example, a preset range may be preset for defining the maximum value and the minimum value of the area of the overlapping area in the case where fingerprint recognition is possible. If the area of the overlap region is within the predetermined range, a part or all of the overlap region may be set as a lighting region, that is, the area of the lighting region is smaller than or equal to the area of the overlap region. With all setting up the overlap area to the area of lightening as an example, the terminal can lighten the touch screen that this overlap area corresponds this moment, produces the light source when carrying out fingerprint identification to the fingerprint identification module that this fingerprint identification effective area below set up can acquire the fingerprint information that gets into all user's fingers of this fingerprint identification effective area, and then carries out fingerprint identification according to this fingerprint information. Because more fingerprint information is acquired, the success rate of fingerprint identification is higher. In practical application, the terminal can set a part of the overlapping area as a lighting area, and after the lighting area is lighted, the terminal only illuminates the part which can meet the fingerprint identification on the finger of the user entering the effective fingerprint identification area, so that the power consumption of the terminal is reduced under the condition of ensuring the fingerprint identification, and the standby time of the terminal is prolonged.
Specifically, if the area of the overlapping area is within the preset range and the area is large, it indicates that most of the contact area between the user finger and the touch screen is within the fingerprint identification effective area, and at this time, the overlapping area is used as a lighting area, so that the user finger entering the fingerprint identification effective area can be ensured to be lighted up, and the fingerprint identification module can acquire the fingerprint information of the user finger entering the fingerprint identification effective area according to the reflected light of the user finger. Meanwhile, due to the fact that the fingers of the user are shielded, the light rays emitted by the lighting area can be prevented from stimulating the eyes of the user, and the user experience is improved while the fingerprint identification is met.
If the area of the overlapping area is within the preset range and the area is smaller, it is indicated that a small part of the contact area between the user finger and the touch screen is within the effective fingerprint identification area, but because the area of the overlapping area is larger than the minimum value limited by the preset range, the fingerprint information carried by the user finger entering the effective fingerprint identification area can be ensured to be enough for the fingerprint identification module to carry out fingerprint identification, at the moment, the overlapping area can be used as a lighting area to ensure that the user finger entering the effective fingerprint identification area is lighted, and the fingerprint identification module can acquire the fingerprint information of the user finger entering the effective fingerprint identification area according to the reflected light of the user finger. Meanwhile, due to the shielding of the fingers of the user, the light rays emitted by the lighting area can be prevented from stimulating the eyes of the user.
In the technical scheme provided by the embodiment of the disclosure, the terminal can determine the lighting area of the screen when performing fingerprint identification under the screen according to the area of the overlapping area of the contact area between the object performing fingerprint identification and the screen and the effective area of fingerprint identification, because the area of the lighting area is smaller than or equal to the area of the overlapping area, when the lighting area is lighted, the object on the screen can be shielded by the light emitted by the lighting area, and then the situation that the light emitted by the lighting area stimulates the eyes of the user under the condition of darker ambient brightness is avoided, and the user experience is improved.
In one embodiment, as shown in fig. 1b, in step 103, determining a lighting area of the screen when performing the fingerprint identification under the screen according to the area of the overlapping area may be implemented by step 1031:
in step 1031, if the area of the overlap region is less than or equal to the first area threshold, the setting of the lighting region is prohibited.
For example, a first area threshold may be preset, where the first area threshold is used to define a minimum value of the area of the overlapping region, and optionally, the first area threshold may be a minimum value defined by the above preset range, or smaller than the minimum value defined by the preset range. If the area of the overlapping area is smaller than or equal to the first area threshold, it is indicated that the fingerprint information carried by the user finger entering the fingerprint identification effective area is too little, and if a lighting area is set at the moment, the fingerprint information of the user finger acquired by the fingerprint identification module is difficult to perform fingerprint identification, so that the lighting area can not be set at the moment, and the waste of terminal computing resources caused by triggering a fingerprint identification process is avoided.
Optionally, when it is determined that the area of the overlapping area is smaller than or equal to the first area threshold, the terminal may further display a prompt message, where the prompt message is used to prompt the user to move the object in the direction indicated by the prompt message. For example, if the overlapping area is located on the right side of the fingerprint identification valid area and the area of the overlapping area is smaller than or equal to the first area threshold, the terminal may display a word "please move the finger to the left" on the screen. After the user refers to the prompt message, the user can move the user's hand to the left according to the indication of the prompt message, so that most or all of the contact area between the user's finger and the touch screen moves into the fingerprint identification effective area. At this time, the terminal can determine the overlapping area of the contact area and the effective fingerprint identification area again, if the area of the overlapping area is within the preset range, the overlapping area can be used as a lighting area, and the fingerprint identification process is completed; if the area of the overlapped area is still smaller than or equal to the first area threshold, prompt information can be continuously displayed to indicate the user to move the finger.
In the technical scheme provided by the embodiment of the disclosure, if the overlapping area is smaller, it is described that most of the contact area between the object and the screen is located outside the fingerprint identification effective area, that is, the fingerprint identification effective area is difficult to acquire enough lines on the surface of the object for fingerprint identification, and at this time, the lighting area is forbidden to be set, so that the fingerprint identification process can be prevented from being started by the terminal, further, the waste of terminal resources is avoided, and the standby time of the terminal is prolonged.
In one embodiment, as shown in fig. 1c, in step 103, determining a lighting area of the screen when performing the off-screen fingerprint recognition according to the area of the overlapping area may be implemented by step 1032:
in step 1032, if the area of the overlapped area is greater than or equal to the second area threshold, the fingerprint identification valid area is set as a lighting area.
For example, a second area threshold may be preset, where the second area threshold is used to define a maximum value of the area of the overlapping region, and specifically, the first area threshold may be a maximum value defined by the preset range, or may also be an area of the effective region for the fingerprint identification.
If the area of the overlapping area is greater than or equal to the second area threshold, it indicates that the area of the contact area between the finger of the user and the touch screen is larger, and at this time, the effective fingerprint identification area may be set as a lighting area, that is, the terminal may light the touch screen corresponding to the entire effective fingerprint identification area. On one hand, even if the finger of the user does not completely shield the effective fingerprint identification area, the unblocked area is small, and the possibility that the light rays emitted by the unblocked area stimulate the eyes of the user is small. On the other hand, set up whole fingerprint identification effective area as the region of lighting up, can guarantee to light up whole user's finger that gets into in this fingerprint identification effective area, including the side of user's finger for fingerprint identification module can gather comparatively clear and abundant fingerprint information and carry out fingerprint identification, and the fingerprint information's that gathers integrity is higher, and then makes fingerprint identification's the degree of accuracy higher.
In the technical scheme that this disclosed embodiment provided, if the overlap area is great, the condition that the contact area between this object and the screen covers the fingerprint identification effective area almost can appear, can set up the fingerprint identification effective area to the region of lighting up this moment, has improved fingerprint information acquisition's integrity, and then has improved fingerprint identification's degree of accuracy.
The following are embodiments of the disclosed apparatus that may be used to perform embodiments of the disclosed methods.
Fig. 2a is a schematic structural diagram illustrating an apparatus 20 for determining a lighting area when performing fingerprint recognition under a screen according to an exemplary embodiment, where the apparatus 20 may be implemented as part or all of an electronic device through software, hardware or a combination of both. As shown in fig. 2a, the apparatus 20 for determining a lighting area when performing fingerprint identification under a screen includes a first determining module 201, an obtaining module 202 and a second determining module 203.
The first determining module 201 is used for determining a contact area between an object placed on a screen and the screen.
An obtaining module 202, configured to obtain an area of an overlapping area between the contact area and a fingerprint identification effective area, where the fingerprint identification effective area is an area on the screen having an off-screen fingerprint identification function.
A second determining module 203, configured to determine, according to the area of the overlap area, a lighting area of the screen when performing the fingerprint identification under the screen, where the area of the lighting area is smaller than or equal to the area of the overlap area.
In one embodiment, as shown in fig. 2b, the second determining module 203 includes a first setting sub-module 2031, and the first setting sub-module 2031 is configured to set the overlap area as the lighting area if the area of the overlap area is within a preset range.
In one embodiment, as shown in fig. 2c, the second determining module 203 includes a disabling sub-module 2032, and the disabling sub-module 2032 is configured to disable the lighting area if the area of the overlapping area is smaller than or equal to the first area threshold.
In one embodiment, as shown in fig. 2d, the apparatus 20 further includes a display module 204, and the display module 204 is configured to display a prompt message for prompting the user to move the object according to the direction indicated by the prompt message.
In one embodiment, as shown in fig. 2e, the second determining module 203 includes a second setting sub-module 2033, and the second setting sub-module 2033 is configured to set the effective fingerprint identification area as the lighting area if the area of the overlapping area is greater than or equal to a second area threshold.
The embodiment of the disclosure provides a confirm the device of lighting region when carrying out fingerprint identification under the screen, the device can confirm the lighting region of screen when carrying out fingerprint identification according to the area of the contact zone between object and the screen that carries out fingerprint identification and the overlap region of fingerprint identification effective area, because the area of this lighting region is less than or equal to the area of overlap region, consequently when this lighting region is lighted, the object that its light that sends can be placed on the screen shelters from, and then avoid this lighting region light that sends to produce amazing condition to user's eyes under the darker condition of ambient brightness, user experience has been improved.
The embodiment of the present disclosure provides an apparatus for determining a lighting area when performing fingerprint recognition under a screen, where the apparatus for determining a lighting area when performing fingerprint recognition under a screen includes:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
determining a contact area between an object placed on a screen and the screen;
acquiring the area of an overlapping area of the contact area and a fingerprint identification effective area, wherein the fingerprint identification effective area is an area with an off-screen fingerprint identification function on the screen;
and determining a lighting area of the screen when the fingerprint under the screen is identified according to the area of the overlapping area, wherein the area of the lighting area is smaller than or equal to the area of the overlapping area.
In one embodiment, the processor may be further configured to: and if the area of the overlapping area is within a preset range, setting the overlapping area as the lighting area.
In one embodiment, the processor may be further configured to: and if the area of the overlapping area is smaller than or equal to a first area threshold value, forbidding to set the lighting area.
In one embodiment, the processor may be further configured to: and displaying prompt information, wherein the prompt information is used for prompting a user to move the object according to the indication direction of the prompt information.
In one embodiment, the processor may be further configured to: and if the area of the overlapping area is larger than or equal to a second area threshold value, setting the fingerprint identification effective area as the lighting area.
The embodiment of the disclosure provides a confirm the device of lighting region when carrying out fingerprint identification under the screen, the device can confirm the lighting region of screen when carrying out fingerprint identification according to the area of the contact zone between object and the screen that carries out fingerprint identification and the overlap region of fingerprint identification effective area, because the area of this lighting region is less than or equal to the area of overlap region, consequently when this lighting region is lighted, the object that its light that sends can be placed on the screen shelters from, and then avoid this lighting region light that sends to produce amazing condition to user's eyes under the darker condition of ambient brightness, user experience has been improved.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 3 is a block diagram illustrating a structure of an apparatus 30 for determining a lighting area when performing fingerprint recognition under a screen according to an exemplary embodiment, where the apparatus 30 is suitable for a terminal device. For example, the apparatus 30 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
The apparatus 30 may include one or more of the following components: processing component 302, memory 304, power component 306, multimedia component 308, audio component 310, input/output (I/O) interface 312, sensor component 314, and communication component 316.
The processing component 302 generally controls overall operation of the device 30, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 302 may include one or more processors 320 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 302 can include one or more modules that facilitate interaction between the processing component 302 and other components. For example, the processing component 302 may include a multimedia module to facilitate interaction between the multimedia component 308 and the processing component 302.
The memory 304 is configured to store various types of data to support operations at the apparatus 30. Examples of such data include instructions for any application or method operating on device 30, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 304 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The power supply component 306 provides power to the various components of the device 30. The power components 306 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 30.
The multimedia component 308 includes a screen that provides an output interface between the device 30 and a user, in some embodiments, the screen may include a liquid crystal display (L CD) and a Touch Panel (TP). if the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
The audio component 310 is configured to output and/or input audio signals. For example, audio component 310 includes a Microphone (MIC) configured to receive external audio signals when apparatus 30 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 304 or transmitted via the communication component 316. In some embodiments, audio component 310 also includes a speaker for outputting audio signals.
The I/O interface 312 provides an interface between the processing component 302 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The communication component 316 is configured to facilitate wired or wireless communication between the apparatus 30 and other devices. The device 30 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 316 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 316 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 30 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), programmable logic devices (P L D), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 304, that are executable by the processor 320 of the device 30 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
The disclosed embodiments provide a non-transitory computer readable storage medium, wherein instructions, when executed by a processor of the device 30, enable the device 30 to perform the above method for determining a lighting area during fingerprint identification under a screen, the method comprising:
determining a contact area between an object placed on a screen and the screen;
acquiring the area of an overlapping area of the contact area and a fingerprint identification effective area, wherein the fingerprint identification effective area is an area with an off-screen fingerprint identification function on the screen;
and determining a lighting area of the screen when the fingerprint under the screen is identified according to the area of the overlapping area, wherein the area of the lighting area is smaller than or equal to the area of the overlapping area.
In one embodiment, the determining, according to the area of the overlap region, a lighting region of the screen when performing the fingerprint recognition under the screen includes: and if the area of the overlapping area is within a preset range, setting the overlapping area as the lighting area.
In one embodiment, the determining, according to the area of the overlap region, a lighting region of the screen when performing the fingerprint recognition under the screen includes: and if the area of the overlapping area is smaller than or equal to a first area threshold value, forbidding to set the lighting area.
In one embodiment, the method further comprises: and displaying prompt information, wherein the prompt information is used for prompting a user to move the object according to the indication direction of the prompt information.
In one embodiment, the determining, according to the area of the overlap region, a lighting region of the screen when performing the fingerprint recognition under the screen includes: and if the area of the overlapping area is larger than or equal to a second area threshold value, setting the fingerprint identification effective area as the lighting area.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (12)
1. A method for determining a lighted area when performing fingerprint recognition under a screen, comprising:
determining a contact area between an object placed on a screen and the screen;
acquiring the area of an overlapping area of the contact area and a fingerprint identification effective area, wherein the fingerprint identification effective area is an area with an off-screen fingerprint identification function on the screen;
and determining a lighting area of the screen when the fingerprint under the screen is identified according to the area of the overlapping area, wherein the area of the lighting area is smaller than or equal to the area of the overlapping area.
2. The method of claim 1, wherein determining the lighted area of the screen when performing the fingerprint recognition under the screen according to the area of the overlap area comprises:
and if the area of the overlapping area is within a preset range, setting the overlapping area as the lighting area.
3. The method of claim 1, wherein determining the lighted area of the screen when performing the fingerprint recognition under the screen according to the area of the overlap area comprises:
and if the area of the overlapping area is smaller than or equal to a first area threshold value, forbidding to set the lighting area.
4. The method of claim 3, further comprising:
and displaying prompt information, wherein the prompt information is used for prompting a user to move the object according to the indication direction of the prompt information.
5. The method of claim 1, wherein determining the lighted area of the screen when performing the fingerprint recognition under the screen according to the area of the overlap area comprises:
and if the area of the overlapping area is larger than or equal to a second area threshold value, setting the fingerprint identification effective area as the lighting area.
6. An apparatus for determining a lighted area when performing fingerprint recognition under a screen, comprising:
a first determination module for determining a contact area between an object placed on a screen and the screen;
the acquisition module is used for acquiring the area of an overlapping area of the contact area and a fingerprint identification effective area, wherein the fingerprint identification effective area is an area with an off-screen fingerprint identification function on the screen;
and the second determining module is used for determining a lighting area of the screen during the screen fingerprint identification according to the area of the overlapping area, wherein the area of the lighting area is smaller than or equal to the area of the overlapping area.
7. The apparatus of claim 6, wherein the second determining module comprises:
and the first setting submodule is used for setting the overlapping area as the lighting area if the area of the overlapping area is within a preset range.
8. The apparatus of claim 6, wherein the second determining module comprises:
and the forbidding submodule is used for forbidding to set the lighting area if the area of the overlapping area is less than or equal to a first area threshold value.
9. The apparatus of claim 8, further comprising:
and the display module is used for displaying prompt information, and the prompt information is used for prompting a user to move the object according to the indication direction of the prompt information.
10. The apparatus of claim 6, wherein the second determining module comprises:
and the second setting submodule is used for setting the fingerprint identification effective area as the lighting area if the area of the overlapping area is larger than or equal to a second area threshold value.
11. An apparatus for determining a lighted area when performing fingerprint recognition under a screen, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
determining a contact area between an object placed on a screen and the screen;
acquiring the area of an overlapping area of the contact area and a fingerprint identification effective area, wherein the fingerprint identification effective area is an area with an off-screen fingerprint identification function on the screen;
and determining a lighting area of the screen when the fingerprint under the screen is identified according to the area of the overlapping area, wherein the area of the lighting area is smaller than or equal to the area of the overlapping area.
12. A computer-readable storage medium having stored thereon computer instructions, which when executed by a processor, perform the steps of the method of any one of claims 1 to 5.
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