CN109409320B - Fingerprint acquisition method and related equipment - Google Patents
Fingerprint acquisition method and related equipment Download PDFInfo
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- CN109409320B CN109409320B CN201811325420.1A CN201811325420A CN109409320B CN 109409320 B CN109409320 B CN 109409320B CN 201811325420 A CN201811325420 A CN 201811325420A CN 109409320 B CN109409320 B CN 109409320B
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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
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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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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Abstract
The application discloses fingerprint collection method and related equipment, which are applied to a mobile terminal comprising a touch screen, a processor and a fingerprint sensor, wherein the touch screen comprises a fingerprint collection area, the fingerprint sensor is arranged below the fingerprint collection area, and the method comprises the following steps: the processor lights up the fingerprint acquisition area to a first brightness; when detecting that a finger performs touch operation on a fingerprint acquisition area, a touch signal is sent to a processor by a Touch Panel (TP) of a touch screen; the processor determines a reference point of a finger touch fingerprint acquisition area based on the touch signal; the processor sends an acquisition instruction to the fingerprint sensor, the acquisition instruction is used for indicating a signal for acquiring a first area, the center of the first area is a datum point, the area of the first area is a preset area, and the preset area is smaller than the area of the fingerprint acquisition area; the fingerprint sensor collects signals of a target area to obtain a fingerprint image of the finger. By adopting the fingerprint identification method and device, the speed of subsequent fingerprint identification can be improved.
Description
Technical Field
The present application relates to the field of electronic technologies, and in particular, to a fingerprint acquisition method and related apparatus.
Background
The principle is gathered to fingerprint under the screen and is utilized the light that the touch screen sent to shine the finger of putting on the touch screen, and the light that the touch screen sent takes place the reflection when reaching the finger, sets up the fingerprint sensor in the touch screen below and receives the light signal of reflection, because the uneven line of fingerprint, the light absorption range is different to obtain the fingerprint image of light and shade difference. At present, the data of fingerprint images acquired by fingerprints under a screen are more, and the speed of subsequent fingerprint identification is influenced.
Disclosure of Invention
The embodiment of the application provides a fingerprint acquisition method and related equipment, which are used for improving the speed of subsequent fingerprint identification.
In a first aspect, an embodiment of the present application provides a fingerprint acquisition method, which is applied to a mobile terminal including a touch screen, a processor, and a fingerprint sensor, where the touch screen includes a fingerprint acquisition area, the fingerprint sensor is disposed below the fingerprint acquisition area, and the method includes:
the processor lights up the fingerprint acquisition area to a first brightness;
when detecting the touch operation of a finger on the fingerprint acquisition area, the TP of the touch screen sends a touch signal to the processor;
the processor determines a reference point of the finger touching the fingerprint acquisition area based on the touch signal;
the processor sends an acquisition instruction to the fingerprint sensor, wherein the acquisition instruction is used for indicating a signal for acquiring a first region, the center of the first region is the datum point, the area of the first region is a preset area, and the preset area is smaller than the area of the fingerprint acquisition region;
and the fingerprint sensor collects signals of the target area to obtain a fingerprint image of the finger.
In a second aspect, an embodiment of the present application provides a fingerprint acquisition device, which is applied to a mobile terminal including a touch screen, where the touch screen includes a fingerprint acquisition area, and the device includes:
the processing unit is used for lighting the fingerprint acquisition area to a first brightness;
the signal triggering unit is used for sending a touch signal to the processing unit when detecting the touch operation of a finger on the fingerprint acquisition area;
the processing unit is further used for determining a reference point of the fingerprint acquisition area touched by the finger based on the touch signal; sending an acquisition instruction to a fingerprint acquisition unit, wherein the acquisition instruction is used for indicating the acquisition of a signal of a first region, the center of the first region is the reference point, the area of the first region is a preset area, and the preset area is smaller than the area of the fingerprint acquisition region;
the fingerprint acquisition unit is used for acquiring the signal of the target area so as to obtain the fingerprint image of the finger.
In a third aspect, an embodiment of the present application provides a mobile terminal, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing steps in the method according to the first aspect of the embodiment of the present application.
In a fourth aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform some or all of the steps described in the method according to the first aspect of the present application.
In a fifth aspect, the present application provides a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, where the computer program is operable to cause a computer to perform some or all of the steps described in the method according to the first aspect of the present application. The computer program product may be a software installation package.
It can be seen that, in the embodiment of the present application, a reference point of a finger touch fingerprint acquisition area is determined first, and then the fingerprint sensor is notified to acquire a signal of a first area with the reference point as a center and an area as a preset area, so as to obtain a fingerprint image of the finger, where the preset area is smaller than the area of the fingerprint acquisition area. For the fingerprint image that the signal that gathers whole fingerprint collection region obtained at present, the data of the fingerprint image of gathering in this application are less relatively, and then have promoted follow-up fingerprint identification's speed.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present application;
fig. 2 is a schematic flowchart of a fingerprint acquisition method according to an embodiment of the present application;
FIG. 3 is a schematic flowchart of another fingerprint acquisition method provided in the embodiments of the present application;
fig. 4 is a schematic structural diagram of a mobile terminal according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a fingerprint acquisition device according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The following are detailed below.
The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Mobile terminals may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems, as well as various forms of User Equipment (UE), Mobile Stations (MS), terminal Equipment (terminal device), and the like, having wireless communication capabilities.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present disclosure, where the mobile terminal includes a processor, a Memory, a signal processor, a communication interface, a touch screen, a speaker, a microphone, a Random Access Memory (RAM), a camera, a sensor, and the like.
The processor may also be an AP processor, or may also be another processor.
The storage, the signal processor, the touch screen, the loudspeaker, the microphone, the RAM, the camera and the sensor are connected with the processor, and the communication interface is connected with the signal processor.
The Touch screen comprises a display screen and a Touch Panel (TP), and the Touch screen comprises a fingerprint acquisition area. The fingerprint acquisition area is an area in the touch screen, namely a large area with the size capable of being pressed by a plurality of fingers at the same time, and is not a small area capable of being pressed by a single finger. The position of the fingerprint collection area may be a middle area of the touch screen, an upper partial area of the touch screen, a lower partial area of the touch screen, and the like, which is not limited herein.
Wherein, the sensor comprises a fingerprint sensor, an infrared sensor, a gyroscope and the like. The fingerprint sensor is arranged below the fingerprint acquisition area and is an optical fingerprint sensor.
In an embodiment of the present application, the processor is configured to illuminate the fingerprint acquisition area to a first brightness;
the TP of the touch screen is used for sending a touch signal to the processor when detecting the touch operation of a finger on the fingerprint acquisition area;
the processor is used for determining a reference point of the finger touching the fingerprint acquisition area based on the touch signal;
the processor is used for sending an acquisition instruction to the fingerprint sensor, wherein the acquisition instruction is used for indicating the acquisition of a signal of a first area, the center of the first area is the reference point, the area of the first area is a preset area, and the preset area is smaller than the area of the fingerprint acquisition area;
the fingerprint sensor is used for collecting signals of the target area so as to obtain a fingerprint image of the finger.
It can be seen that, in the embodiment of the present application, a reference point of a finger touch fingerprint acquisition area is determined first, and then the fingerprint sensor is notified to acquire a signal of a first area with the reference point as a center and an area as a preset area, so as to obtain a fingerprint image of the finger, where the preset area is smaller than the area of the fingerprint acquisition area. For the fingerprint image that the signal that gathers whole fingerprint collection region obtained at present, the data of the fingerprint image of gathering in this application are less relatively, and then have promoted follow-up fingerprint identification's speed.
In an implementation manner of the present application, the processor is further configured to adjust a brightness of a second region to a second brightness before sending the acquisition instruction or when sending the acquisition instruction, where the second brightness is greater than the first brightness, the second region includes the first region, and an area of the second region is smaller than an area of the fingerprint acquisition region.
In an implementation manner of the present application, the processor is further configured to adjust the brightness of the fingerprint acquisition area except for the second area to a third brightness when the brightness of the second area is adjusted to the second brightness, where the third brightness is smaller than the first brightness.
In an implementation manner of the present application, the processor is further configured to light the brightness of the area of the touch screen other than the fingerprint acquisition area to the first brightness when the fingerprint acquisition area is lighted to the first brightness; highlighting the fingerprint acquisition area after illuminating the fingerprint acquisition area to the first brightness.
In an implementation of the present application, in highlighting the fingerprint acquisition area, the processor is specifically configured to: adding a frame to the fingerprint acquisition area;
and/or displaying preset information above the fingerprint acquisition area, wherein the preset information is used for prompting the input of a fingerprint below the fingerprint acquisition area;
and/or, controlling the fingerprint collection area to emit light of a single color, wherein the single color comprises a single green color, a single red color or a single blue color.
In an implementation manner of the present application, in lighting the fingerprint acquisition area to a first brightness, the processor is specifically configured to:
the processor illuminates the fingerprint acquisition area to a first intensity under a first condition comprising at least one of: the method comprises the steps of detecting a set knocking signal, detecting a set touch operation aiming at the touch screen, and detecting a set gesture.
In an implementation manner of the present application, after the fingerprint sensor collects the signal of the target area to obtain the fingerprint image of the finger, the processor is further configured to match the fingerprint image with a preset fingerprint template; carrying out unlocking operation under the condition that the fingerprint image is matched with the preset fingerprint template; controlling the touch screen display system desktop; and controlling the fingerprint acquisition area to display an application icon of a target application.
It should be noted that, specific implementation procedures of the steps executed by the modules may refer to specific implementation procedures described in the following methods, and are not described herein.
Referring to fig. 2, fig. 2 is a schematic flowchart of a fingerprint acquisition method provided in an embodiment of the present application, and the method is applied to the mobile terminal, and the method includes:
step 201: the processor illuminates the fingerprint acquisition area to a first brightness.
Specifically, when the fingerprint acquisition area is lighted to a first brightness, the processor lights an area of the touch screen except the fingerprint acquisition area to a fourth brightness, where the fourth brightness may be equal to the first brightness, may also be less than the first brightness, and may also be greater than the first brightness; or the processor keeps the screen-off state of the touch screen except for the fingerprint acquisition area.
The first brightness may be a display brightness of the touch screen currently set by the mobile terminal, or may be a preset brightness, which is not limited herein.
Step 202: and when the touch operation of a finger on the fingerprint acquisition area is detected, the TP of the touch screen sends a touch signal to the processor.
The touch operation may be, for example, a pressing operation, a clicking operation, or the like.
The touch screen comprises a plurality of pixel points, and the touch signal comprises capacitance value variation corresponding to each pixel point in the fingerprint acquisition area.
Step 203: the processor determines a reference point of the finger touching the fingerprint acquisition area based on the touch signal.
The reference point may be a center touch point of the finger touch fingerprint acquisition area, or may be other touch points of the finger touch fingerprint acquisition area, which is not limited herein.
When the reference point is a central touch point, the specific implementation mode of the processor for determining the reference point of the fingerprint acquisition area through finger touch based on the touch signal is as follows: the processor takes a target pixel point as a reference point of the fingerprint acquisition area touched by the finger, and the capacitance value variation amount corresponding to the target pixel point is the largest of the plurality of pixel points.
Step 204: the processor sends a collection instruction to the fingerprint sensor, the collection instruction is used for indicating a signal for collecting a first region, the center of the first region is the reference point, the area of the first region is a preset area, and the preset area is smaller than the area of the fingerprint collection region.
The shape of the first region may be square, circular, rectangular, or elliptical, and is not limited herein.
The predetermined area may be, for example, 8nm by 8nm, 10nm by 10nm, 8nm by 10nm, or other values.
Step 205: and the fingerprint sensor collects signals of the target area to obtain a fingerprint image of the finger.
The signal collected by the fingerprint sensor is an optical signal.
It can be seen that, in the embodiment of the present application, a reference point of a finger touch fingerprint acquisition area is determined first, and then the fingerprint sensor is notified to acquire a signal of a first area with the reference point as a center and an area as a preset area, so as to obtain a fingerprint image of the finger, where the preset area is smaller than the area of the fingerprint acquisition area. For the fingerprint image that the signal that gathers whole fingerprint collection region obtained at present, the data of the fingerprint image of gathering in this application are less relatively, and then have promoted follow-up fingerprint identification's speed.
In an implementation manner of the present application, the method further includes:
before or when the acquisition instruction is sent, the processor adjusts the brightness of a second area to a second brightness, wherein the second brightness is greater than the first brightness, the second area comprises the first area, and the area of the second area is smaller than that of the fingerprint acquisition area.
Wherein the second brightness is a preset brightness; or the second brightness is determined by the mobile terminal according to the ambient light brightness of the current environment of the mobile terminal, and the second brightness corresponding to the ambient light brightness is determined according to the mapping relation between the ambient light brightness and the brightness of the fingerprint acquisition area; or the second brightness is determined by the mobile terminal according to the current geographic position of the mobile terminal, and the second brightness corresponding to the current geographic position is determined according to the mapping relation between the geographic position and the brightness of the fingerprint acquisition area; and so on.
The shape of the second area is the same as that of the first area, or the shape of the second area is different from that of the first area.
It can be seen that, in this application embodiment, light the fingerprint collection region to a lower luminance earlier, when the fingerprint collection region was touched control, improve the luminance in second region again, for improving the luminance in whole fingerprint collection region, this application only improves the luminance in second region, has reduced the consumption. In addition, fingerprint collection is performed after the brightness of the second area is improved, and the quality of collected fingerprint images is improved.
In an implementation manner of the present application, the method further includes:
when the brightness of the second area is adjusted to a second brightness, the processor adjusts the brightness of the area of the fingerprint collection area except the second area to a third brightness, and the third brightness is smaller than the first brightness.
The third brightness may be the lowest brightness that can be displayed by the touch screen, or may be 0 (i.e., a black screen), which is not limited herein.
It can be seen that in the embodiment of the present application, the brightness of the second region is adjusted to be high, and the brightness of the other regions is adjusted to be low, so that the power consumption is further reduced.
In an implementation manner of the present application, the method further includes:
when the fingerprint acquisition area is lightened to the first brightness, the processor lightens the brightness of the area of the touch screen except the fingerprint acquisition area to the first brightness;
the processor highlights the fingerprint acquisition area after illuminating the fingerprint acquisition area to the first brightness.
It can be seen that, in this application embodiment, when the luminance of whole touch-control screen is first luminance, the user is difficult to distinguish the fingerprint collection region where this moment, consequently through highlighting fingerprint collection region to reach about reminding.
In an implementation manner of the present application, the processor highlights the fingerprint acquisition area, including:
the processor adds a frame to the fingerprint acquisition area; and/or the processor displays preset information above the fingerprint acquisition area, wherein the preset information is used for prompting the input of a fingerprint below the fingerprint acquisition area; and/or the processor controls the fingerprint acquisition area to emit light of a single color, wherein the single color comprises a single green color, a single red color or a single blue color.
Wherein the color of the added frame may be red, green, black, blue, etc.
Wherein the preset information is a text, for example, "enter fingerprint at bottom"; alternatively, an information pattern is preset, which may be, for example, a fingerprint pattern; and so on.
In an implementation manner of the present application, the lighting the fingerprint acquisition area to a first brightness by the processor includes:
the processor illuminates the fingerprint acquisition area to a first intensity under a first condition comprising at least one of: the method comprises the steps of currently displaying an unlocking interface on the touch screen, detecting a set touch operation aiming at the touch screen, detecting a pressing operation aiming at an HOME key, detecting a set gesture and detecting a set knocking signal.
Wherein the unlock interface is different from the lock screen interface. And displaying the screen locking wallpaper on the screen locking interface. And displaying an unlocking prompt on the unlocking interface. For example, if the verification information required for unlocking is a digital password, displaying a 0-9 number key and a prompt text for prompting to input the password on the unlocking interface, or for example, if the verification information required for unlocking is a digital password, displaying a 0-9 number key and a prompt text for prompting to input the password on the unlocking interface. For another example, if the verification information required for unlocking is a fingerprint, a fingerprint acquisition area is displayed on the unlocking interface, and prompt text prompting that the fingerprint is input in the fingerprint acquisition area is displayed.
The setting touch operation may be user-defined or mobile terminal-defined, and is not limited herein. The setting touch operation includes, for example, a single-click operation, a multi-click operation, a slide operation (e.g., a leftward slide operation, a rightward slide operation, an upward slide operation, a downward slide operation, etc.), a single-click operation followed by a slide operation, a multi-click operation followed by a slide operation, a slide operation followed by a single-click operation, a multi-click operation followed by a slide operation, and the like.
The setting gesture may be user-defined or user-defined by the mobile terminal, and is not limited herein. Examples of the setting gesture include a phone call gesture, a ring finger gesture, a slide gesture, an OK gesture, a ring finger gesture followed by an OK gesture, and the like.
The set tapping signal may be user-defined or mobile terminal-defined, and is not limited herein. The tapping signal includes: at least one of a number of taps, a frequency of taps, and a tapping motion. The knocking action can be one knocking action or a plurality of knocking actions. When the tapping action is a plurality of tapping actions, at least two tapping actions among the plurality of tapping actions are different from each other. The set tapping signal is input by the user according to the set tapping action and the set tapping times in advance. Wherein the set tapping action is a simple tapping action, such as tapping lightly with a finger; or the set tapping action is a more complex tapping action, such as tapping a few times with a first finger and tapping a few times with a second finger.
It can be seen that, in the embodiment of the application, the fingerprint acquisition area is triggered to be lightened under a certain condition, so that the influence on the display life of the fingerprint acquisition area due to the fact that the fingerprint acquisition area is always lightened is avoided, and the performance of the mobile terminal is improved.
In an implementation manner of the present application, after the fingerprint sensor collects the signal of the target area to obtain the fingerprint image of the finger, the method further includes:
the processor matches the fingerprint image with a preset fingerprint template; under the condition that the fingerprint image is matched with the preset fingerprint template, the processor performs unlocking operation; the processor controls the touch screen display system desktop; the processor controls the fingerprint acquisition area to display an application icon of a target application.
The target application may be one or more, and is not limited herein.
Further, when the fingerprint image has a corresponding application, the target application is the application corresponding to the fingerprint image.
Further, when the fingerprint image has no corresponding application, the target application is an application used before the screen of the mobile terminal is locked, or an application with the accumulated use times larger than or equal to a set threshold value.
Further, when the fingerprint image does not have a corresponding application, the first condition includes that a setting gesture is detected, and when the setting gesture is a call gesture, the target application is an application capable of talking, such as a QQ, a WeChat, a telephone application, and the like.
Particularly, currently, as the variety of applications increases and the usage time of the mobile terminal increases, the applications installed by the user become larger. Generally, most users will put most applications in the add-on program for the tidiness of the system desktop, so that when the user opens the application, the user will enter the add-on program first and then find the application to be started, which affects the speed of starting the application.
In the application, as the user presses the fingerprint acquisition area to unlock, the user can directly notice the fingerprint acquisition area after unlocking, so that application icons of applications which some users may use are displayed in the area, and the starting speed of the applications can be improved.
In an implementation manner of the present application, after the processor lights up the fingerprint acquisition area to the first brightness, the method further includes:
the processor controls the fingerprint collection area to display target information, wherein the target information comprises at least one of the following: time information, notification information, power status information, network status information.
The time information includes a current system time, a current system date, and the like. The notification information includes short message notification information, incoming call notification information, notification information pushed by an application, an expiration reminder of an event recorded in a memo, and the like. The electric quantity state information is used for representing the electric quantity percentage left by the current mobile terminal, and comprises an electric quantity state icon, a residual electric quantity percentage numerical value and the like. The network state information is used to indicate a network to which the mobile terminal is currently connected and a signal strength of the connected network. The network status information includes an icon of the connected network, a signal strength icon of the connected network, and the like.
It can be seen that, in this application embodiment, after lighting up the fingerprint collection region, show some information in the fingerprint collection region, promoted the regional utilization ratio of fingerprint collection.
In an implementation manner of the present application, after the processor controls the fingerprint acquisition area to display target information, the method further includes:
when the touch operation of a finger on the fingerprint collection area is detected, the processor removes the target information from the fingerprint collection area.
It can be seen that, in this application embodiment, because fingerprint sensor is the optics fingerprint, when detecting the finger to the touch-control operation in fingerprint collection area, in order not to influence the fingerprint image who gathers, will remove the demonstration at the information that fingerprint collection area shows, and then under the regional circumstances of rational utilization fingerprint collection, do not influence the fingerprint image who gathers again, promoted mobile terminal's performance.
In an implementation manner of the present application, after the processor controls the fingerprint acquisition area to display target information, the method further includes:
and when the touch operation of the finger on the fingerprint acquisition area is not detected within a set time, the processor extinguishes the fingerprint acquisition area.
The set time period may be, for example, 1min, 3min, 5min, 10min or other values.
It can be seen that, in the embodiment of the present application, if the touch operation of the finger on the fingerprint acquisition area is not detected within a certain duration, it indicates that the mobile terminal may be touched by mistake, or the user only wants to view the content displayed on the fingerprint acquisition area, in this case, the fingerprint acquisition area is directly turned off, and power consumption is reduced in some assumption.
Referring to fig. 3, fig. 3 is a schematic flowchart of a fingerprint acquisition method provided in an embodiment of the present application, and the fingerprint acquisition method is applied to the mobile terminal, and includes:
step 301: the processor illuminates the fingerprint acquisition area to a first intensity under a first condition comprising at least one of: the method comprises the steps of detecting a set knocking signal, detecting a set touch operation aiming at the touch screen, and detecting a set gesture.
Step 302: and when the touch operation of the finger on the fingerprint acquisition area is detected, the TP of the touch screen sends a touch signal to the processor.
Step 303: the processor determines a reference point of the finger touching the fingerprint acquisition area based on the touch signal.
Step 304: the processor sends a collection instruction to the fingerprint sensor, the collection instruction is used for indicating a signal for collecting a first region, the center of the first region is the reference point, the area of the first region is a preset area, and the preset area is smaller than the area of the fingerprint collection region.
Step 305: and when the acquisition instruction is sent, the processor adjusts the brightness of a second area to a second brightness, wherein the second brightness is greater than the first brightness, the second area comprises the first area, and the area of the second area is smaller than that of the fingerprint acquisition area.
Step 306: when the brightness of the second area is adjusted to a second brightness, the processor adjusts the brightness of the area of the fingerprint collection area except the second area to a third brightness, and the third brightness is smaller than the first brightness.
Step 307: and the fingerprint sensor collects signals of the target area to obtain a fingerprint image of the finger.
Step 308: and the processor matches the fingerprint image with a preset fingerprint template.
Step 309: and under the condition that the fingerprint image is matched with the preset fingerprint template, the processor performs unlocking operation.
Step 310: and the processor controls the touch screen to display the desktop of the system.
Step 311: the processor controls the fingerprint acquisition area to display an application icon of a target application.
It should be noted that, for the specific implementation process of the present embodiment, reference may be made to the specific implementation process described in the above method embodiment, and a description thereof is omitted here.
Consistent with the embodiments shown in fig. 2 and fig. 3, please refer to fig. 4, and fig. 4 is a schematic structural diagram of a mobile terminal provided in an embodiment of the present application, as shown, the mobile terminal includes a touch screen, a processor, and a fingerprint sensor, where the touch screen includes a fingerprint acquisition area, the fingerprint sensor is disposed below the fingerprint acquisition area, the mobile terminal further includes a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for performing the following steps:
lighting the fingerprint acquisition area to a first brightness;
when the touch operation of at least one finger on the fingerprint acquisition area is detected, receiving a touch signal sent by a TP of the touch screen;
determining a reference point of the finger touching the fingerprint acquisition area based on the touch signal;
sending an acquisition instruction to the fingerprint sensor, wherein the acquisition instruction is used for indicating a signal of an acquisition first region, so that the fingerprint sensor acquires the signal of the first region to obtain a fingerprint image of the finger, the center of the first region is the reference point, the area of the first region is a preset area, and the preset area is smaller than the area of the fingerprint acquisition region.
In an implementation manner of the present application, the program includes instructions for further performing the following steps:
before sending the acquisition instruction or when sending the acquisition instruction, adjusting the brightness of a second area to a second brightness, wherein the second brightness is greater than the first brightness, the second area comprises the first area, and the area of the second area is smaller than that of the fingerprint acquisition area.
In an implementation manner of the present application, the program includes instructions for further performing the following steps:
when the brightness of the second area is adjusted to a second brightness, adjusting the brightness of the area of the fingerprint collection area except the second area to a third brightness, wherein the third brightness is smaller than the first brightness.
In an implementation manner of the present application, the program includes instructions for further performing the following steps:
when the fingerprint acquisition area is lightened to the first brightness, lightening the brightness of an area of the touch screen except the fingerprint acquisition area to the first brightness;
highlighting the fingerprint acquisition area after illuminating the fingerprint acquisition area to the first brightness.
In an implementation of the application, the program comprises instructions for performing the following steps in particular, in terms of highlighting the fingerprint acquisition area:
adding a frame to the fingerprint acquisition area;
and/or displaying preset information above the fingerprint acquisition area, wherein the preset information is used for prompting the input of a fingerprint below the fingerprint acquisition area;
and/or, controlling the fingerprint collection area to emit light of a single color, wherein the single color comprises a single green color, a single red color or a single blue color.
In one implementation of the present application, in lighting the fingerprint acquisition area to a first brightness, the program includes instructions specifically configured to:
illuminating the fingerprint acquisition area to a first intensity under a first condition, the first condition including at least one of: the method comprises the steps of detecting a set knocking signal, detecting a set touch operation aiming at the touch screen, and detecting a set gesture.
In an implementation manner of the present application, after acquiring the signal of the target area to obtain the fingerprint image of the finger, the program includes instructions for further performing the following steps:
matching the fingerprint image with a preset fingerprint template;
carrying out unlocking operation under the condition that the fingerprint image is matched with the preset fingerprint template;
controlling the touch screen display system desktop;
and controlling the fingerprint acquisition area to display an application icon of a target application.
It should be noted that, for the specific implementation process of the present embodiment, reference may be made to the specific implementation process described in the above method embodiment, and a description thereof is omitted here.
The above embodiments mainly introduce the scheme of the embodiments of the present application from the perspective of the method-side implementation process. It is understood that the electronic device comprises corresponding hardware structures and/or software modules for performing the respective functions in order to realize the above-mentioned functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiment of the present application, the electronic device may be divided into the functional units according to the method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
The following is an embodiment of the apparatus of the present application, which is used to execute the method implemented by the embodiment of the method of the present application. Referring to fig. 5, fig. 5 is a fingerprint acquisition device provided in an embodiment of the present application, which is applied to a mobile terminal including a touch screen, where the touch screen includes a fingerprint acquisition area, and the fingerprint acquisition device includes:
the processing unit 501 is configured to light the fingerprint acquisition area to a first brightness;
a signal triggering unit 502, configured to send a touch signal to the processing unit when a touch operation of a finger on the fingerprint acquisition area is detected;
the processing unit 501 is further configured to determine a reference point of the fingerprint acquisition area touched by the finger based on the touch signal; sending an acquisition instruction to a fingerprint acquisition unit 503, where the acquisition instruction is used to instruct to acquire a signal of a first region, the center of the first region is the reference point, the area of the first region is a preset area, and the preset area is smaller than the area of the fingerprint acquisition region;
a fingerprint collecting unit 503, configured to collect signals of the target area to obtain a fingerprint image of the finger.
In an implementation manner of the present application, the processing unit 501 is further configured to adjust brightness of a second region to a second brightness before sending the acquisition instruction or when sending the acquisition instruction, where the second brightness is greater than the first brightness, the second region includes the first region, and an area of the second region is smaller than an area of the fingerprint acquisition region.
In an implementation manner of the present application, the processing unit 501 is further configured to adjust the brightness of the area other than the second area in the fingerprint acquisition area to a third brightness when the brightness of the second area is adjusted to the second brightness, where the third brightness is smaller than the first brightness.
In an implementation manner of the present application, the processing unit 501 is further configured to, when the fingerprint acquisition area is lighted to the first brightness, light the brightness of an area of the touch screen other than the fingerprint acquisition area to the first brightness; highlighting the fingerprint acquisition area after illuminating the fingerprint acquisition area to the first brightness.
In an implementation manner of the present application, in highlighting the fingerprint acquisition area, the processing unit 501 is specifically configured to:
adding a frame to the fingerprint acquisition area;
and/or displaying preset information above the fingerprint acquisition area, wherein the preset information is used for prompting the input of a fingerprint below the fingerprint acquisition area;
and/or, controlling the fingerprint collection area to emit light of a single color, wherein the single color comprises a single green color, a single red color or a single blue color.
In an implementation manner of the present application, in lighting the fingerprint acquisition area to the first brightness, the processing unit 501 is specifically configured to:
the processor illuminates the fingerprint acquisition area to a first intensity under a first condition comprising at least one of: the method comprises the steps of detecting a set knocking signal, detecting a set touch operation aiming at the touch screen, and detecting a set gesture.
In an implementation manner of the present application, after the fingerprint acquisition unit 503 acquires a signal of the target area to obtain a fingerprint image of the finger, the processing unit 501 is further configured to match the fingerprint image with a preset fingerprint template; carrying out unlocking operation under the condition that the fingerprint image is matched with the preset fingerprint template; controlling the touch screen display system desktop; and controlling the fingerprint acquisition area to display an application icon of a target application.
It should be noted that the processing unit 501 may be implemented by a processor, the signal triggering unit 502 may be implemented by a TP of a touch screen, and the fingerprint collecting unit 503 may be implemented by a fingerprint sensor.
Embodiments of the present application also provide a computer storage medium, where the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any one of the methods described in the above method embodiments, and the computer includes a mobile terminal.
Embodiments of the present application also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods as described in the above method embodiments. The computer program product may be a software installation package, the computer comprising a mobile terminal.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit may be stored in a computer readable memory if it is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above-mentioned method of the embodiments of the present application. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash Memory disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. The fingerprint acquisition method is applied to a mobile terminal comprising a touch screen, a processor and a fingerprint sensor, wherein the touch screen comprises a fingerprint acquisition area, the fingerprint sensor is arranged below the fingerprint acquisition area, and the method comprises the following steps:
the processor lights up the fingerprint acquisition area to a first brightness;
when detecting that a finger performs touch operation on the fingerprint acquisition area, a touch panel TP of the touch screen sends a touch signal to the processor, wherein the touch signal includes capacitance variation corresponding to each pixel point included in the fingerprint acquisition area;
the processor determines a target pixel point as a reference point of the fingerprint acquisition area touched by the finger based on the touch signal, wherein the capacitance variation corresponding to the target pixel point is the largest capacitance variation corresponding to all pixel points included in the fingerprint acquisition area;
the processor sends an acquisition instruction to the fingerprint sensor, wherein the acquisition instruction is used for indicating a signal for acquiring a first region, the center of the first region is the datum point, the area of the first region is a preset area, and the preset area is smaller than the area of the fingerprint acquisition region;
the fingerprint sensor collects signals of the first area to obtain a fingerprint image of the finger.
2. The method of claim 1, further comprising:
before or when the acquisition instruction is sent, the processor adjusts the brightness of a second area to a second brightness, wherein the second brightness is greater than the first brightness, the second area comprises the first area, and the area of the second area is smaller than that of the fingerprint acquisition area.
3. The method of claim 2, further comprising:
when the brightness of the second area is adjusted to a second brightness, the processor adjusts the brightness of the area of the fingerprint collection area except the second area to a third brightness, and the third brightness is smaller than the first brightness.
4. The method according to any one of claims 1-3, further comprising:
when the fingerprint acquisition area is lightened to the first brightness, the processor lightens the brightness of the area of the touch screen except the fingerprint acquisition area to the first brightness;
the processor highlights the fingerprint acquisition area after illuminating the fingerprint acquisition area to the first brightness.
5. The method of claim 4, wherein the processor highlights the fingerprint acquisition area, comprising:
the processor adds a frame to the fingerprint acquisition area;
and/or the processor displays preset information above the fingerprint acquisition area, wherein the preset information is used for prompting the input of a fingerprint below the fingerprint acquisition area;
and/or the processor controls the fingerprint acquisition area to emit light of a single color, wherein the single color comprises a single green color, a single red color or a single blue color.
6. The method of any of claims 1-5, wherein the processor illuminating the fingerprint acquisition area to a first intensity comprises:
the processor illuminates the fingerprint acquisition area to a first intensity under a first condition comprising at least one of: the method comprises the steps of detecting a set knocking signal, detecting a set touch operation aiming at the touch screen, and detecting a set gesture.
7. The method of any one of claims 1-6, wherein after the fingerprint sensor acquires the signal of the first area to obtain the fingerprint image of the finger, the method further comprises:
the processor matches the fingerprint image with a preset fingerprint template;
under the condition that the fingerprint image is matched with the preset fingerprint template, the processor performs unlocking operation;
the processor controls the touch screen to display a system desktop;
the processor controls the fingerprint acquisition area to display an application icon of a target application.
8. The utility model provides a fingerprint collection device which characterized in that is applied to the mobile terminal including the touch-control screen, the touch-control screen includes fingerprint collection area, the device includes:
the processing unit is used for lighting the fingerprint acquisition area to a first brightness;
the signal triggering unit is used for sending a touch signal to the processing unit when detecting that a finger performs touch operation on the fingerprint acquisition area, wherein the touch signal comprises capacitance variation corresponding to each pixel point included in the fingerprint acquisition area;
the processing unit is further configured to determine a target pixel point as a reference point for the finger to touch the fingerprint acquisition area based on the touch signal, where a capacitance variation corresponding to the target pixel point is the largest capacitance variation corresponding to all pixel points included in the fingerprint acquisition area; sending an acquisition instruction to a fingerprint acquisition unit, wherein the acquisition instruction is used for indicating the acquisition of a signal of a first region, the center of the first region is the reference point, the area of the first region is a preset area, and the preset area is smaller than the area of the fingerprint acquisition region;
the fingerprint acquisition unit is used for acquiring the signal of the first area so as to obtain a fingerprint image of the finger.
9. A mobile terminal, characterized in that the mobile terminal comprises a touch screen comprising a fingerprint acquisition area, a processor and a fingerprint sensor provided below the fingerprint acquisition area, the mobile terminal further comprising a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for carrying out the steps of the method according to any one of claims 1-7.
10. A computer-readable storage medium, characterized in that a computer program for electronic data exchange is stored, wherein the computer program causes a computer to perform the method according to any one of claims 1-7.
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| CN110008852A (en) * | 2019-03-15 | 2019-07-12 | 深圳北斗通信科技有限公司 | Fingerprint collecting method, system and storage medium |
| CN109948578B (en) * | 2019-03-28 | 2021-07-16 | 联想(北京)有限公司 | Control method, control device and electronic equipment |
| CN109817152B (en) * | 2019-04-09 | 2022-03-11 | Oppo广东移动通信有限公司 | Screen brightness adjusting method and related product |
| CN110188698B (en) * | 2019-05-31 | 2021-05-14 | Oppo广东移动通信有限公司 | Fingerprint identification control method and device and computer readable storage medium |
| CN110427866B (en) * | 2019-07-29 | 2023-07-07 | 四川康佳智能终端科技有限公司 | Under-screen fingerprint unlocking control method, fingerprint unlocking equipment and storage medium |
| CN110556083B (en) * | 2019-09-24 | 2021-08-31 | 晟合微电子(肇庆)有限公司 | Display screen brightness control method, control system and operating system |
| CN110661974B (en) * | 2019-09-30 | 2020-12-18 | 联想(北京)有限公司 | Image acquisition method and device and electronic equipment |
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