CN109711255A - Fingerprint collecting method and relevant apparatus - Google Patents
Fingerprint collecting method and relevant apparatus Download PDFInfo
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- CN109711255A CN109711255A CN201811414144.6A CN201811414144A CN109711255A CN 109711255 A CN109711255 A CN 109711255A CN 201811414144 A CN201811414144 A CN 201811414144A CN 109711255 A CN109711255 A CN 109711255A
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- fingerprint
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- fingerprint image
- image
- display screen
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
- H04M1/667—Preventing unauthorised calls from a telephone set
- H04M1/67—Preventing unauthorised calls from a telephone set by electronic means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/725—Cordless telephones
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Abstract
The embodiment of the present application discloses fingerprint collecting method and relevant apparatus, and the predeterminable area of the display screen of the electronic equipment is provided with the lower fingerprint mould group of screen, which comprises opens photosensitive sensors and acquires light sensation value；Detect whether the light sensation value is greater than or equal to preset threshold；If so, the brightness in the display screen is acquisition at least first fingerprint image under the first brightness, the display screen brightness be the second brightness under, at least second fingerprint image is acquired, at least two fingerprint images are obtained, first brightness is less than second brightness；Target fingerprint image is determined according at least two fingerprint images.The embodiment of the present application is able to solve the problem of light interference, acquires accurate fingerprint, so that unlock success rate improves, improves accuracy and intelligence that electronic equipment carries out fingerprint collecting.
Description
Technical field
This application involves intelligent mobile terminal technical fields, and in particular to a kind of fingerprint collecting method and relevant apparatus.
Background technique
Intelligent electronic device on the market is all supported to touch screen operating function substantially at present, and user is usually in advance by several groups
In the database of fingerprint typing terminal, user clicks directly on screen and can be carried out operating, and interacts with equipment.Some intelligent terminals
There are also fingerprint identification functions, can use fingerprint and carry out wake-up unlock, authentication etc..However extraneous light can interfere with finger
Line identification function the operation such as leads to not efficiently to be unlocked, reduces the Experience Degree of user.
Summary of the invention
The embodiment of the present application provides a kind of fingerprint collecting method and relevant apparatus, improves electronic equipment and carries out fingerprint collecting
Accuracy and intelligence.
In a first aspect, the embodiment of the present application provides a kind of fingerprint collecting method, it is applied to electronic equipment, the electronic equipment
The predeterminable area of display screen be provided with the lower fingerprint mould group of screen, which comprises
It opens photosensitive sensors and acquires light sensation value；
Detect whether the light sensation value is greater than or equal to preset threshold；
If so, the brightness in the display screen is acquisition at least first fingerprint image, described under the first brightness
The brightness of display screen is to acquire at least second fingerprint image under the second brightness, obtain at least two fingerprint images, described the
One brightness is less than second brightness；
Target fingerprint image is determined according at least two fingerprint images.
Second aspect, the embodiment of the present application provide a kind of fingerprint acquisition device, are applied to electronic equipment, the electronic equipment
The predeterminable area of display screen be provided with the lower fingerprint mould group of screen, the fingerprint acquisition device include acquisition unit, detection unit and
Determination unit, wherein
The acquisition unit, for opening photosensitive sensors acquisition light sensation value；
The detection unit, for detecting whether the light sensation value is greater than or equal to preset threshold；
The acquisition unit is also used to if so, being acquisition at least one under the first brightness in the brightness of the display screen
First fingerprint image, the display screen brightness be the second brightness under, acquire at least second fingerprint image, obtain at least
Two fingerprint images, first brightness are less than second brightness；
The determination unit, for determining target fingerprint image according at least two fingerprint images.
The third aspect, the embodiment of the present application provide a kind of electronic equipment, including processor, memory, communication interface and
One or more programs, wherein said one or multiple programs are stored in above-mentioned memory, and are configured by above-mentioned
It manages device to execute, above procedure is included the steps that for executing the instruction in the embodiment of the present application first aspect either method.
Fourth aspect, the embodiment of the present application provide a kind of computer readable storage medium, wherein above-mentioned computer-readable
Storage medium storage is used for the computer program of electronic data interchange, wherein above-mentioned computer program executes computer such as
Step some or all of described in the embodiment of the present application first aspect either method.
5th aspect, the embodiment of the present application provide a kind of computer program product, wherein above-mentioned computer program product
Non-transient computer readable storage medium including storing computer program, above-mentioned computer program are operable to make to calculate
Machine executes the step some or all of as described in the embodiment of the present application first aspect either method.The computer program product
It can be a software installation packet.
As can be seen that electronic equipment first turns on photosensitive sensors acquisition light sensation value, secondly, inspection in the embodiment of the present application
Survey whether the light sensation value is greater than or equal to preset threshold, then, if so, the brightness in the display screen is the first brightness
Under, at least first fingerprint image is acquired, is at least one second finger of acquisition under the second brightness in the brightness of the display screen
Print image obtains at least two fingerprint images, and first brightness is less than second brightness, finally, according to described at least two
It opens fingerprint image and determines target fingerprint image.As it can be seen that the electronic equipment of the embodiment of the present application can be acquired according to photosensitive sensors
The light sensation degree of current display screen adjusts the brightness of different display screens according to different light sensation degree, and further acquisition exists
Fingerprint image under different brightness, the application be able to solve light interference the problem of, acquire accurate fingerprint so that unlock at
Power improves, and improves accuracy and intelligence that electronic equipment carries out fingerprint collecting.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the schematic diagram of a kind of electronic equipment acquisition fingerprint provided by the embodiments of the present application；
Fig. 2 is a kind of flow diagram of fingerprint collecting method provided by the embodiments of the present application；
Fig. 3 is the flow diagram of another fingerprint collecting method provided by the embodiments of the present application；
Fig. 4 is the flow diagram of another fingerprint collecting method provided by the embodiments of the present application；
Fig. 5 is the structural schematic diagram of a kind of electronic equipment provided by the embodiments of the present application；
Fig. 6 is a kind of functional unit composition block diagram of fingerprint acquisition device provided by the embodiments of the present application.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall in the protection scope of this application.
The description and claims of this application and term " first " in above-mentioned attached drawing, " second " etc. are for distinguishing
Different objects, are not use to describe a particular order.In addition, term " includes " and " having " and their any deformations, it is intended that
It is to cover and non-exclusive includes.Such as the process, method, system, product or equipment for containing a series of steps or units do not have
It is defined in listed step or unit, but optionally further comprising the step of not listing or unit, or optionally also wrap
Include other step or units intrinsic for these process, methods, product or equipment.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
It is contained at least one embodiment of the application.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.
Electronic equipment involved by the embodiment of the present application can be the electronic equipment for having fingerprint capacity, the electronics
Equipment may include the various handheld devices with fingerprint identification function, mobile unit, wearable device, calculate equipment or connection
It is mobile to other processing equipments of radio modem and various forms of user equipmenies (User Equipment, UE)
Platform (Mobile Station, MS), terminal device (terminaldevice) etc..
It describes in detail below to the embodiment of the present application.
Fingerprint identification technology is mapped a people with his fingerprint, the fingerprint by comparing him and the finger that pre-saves
Line is compared, and the details of more different fingerprints are identified, so that it may verify his true identity.Fingerprint image
It is the data of the fingerprint using image format as carrier.Fingerprint is to be formed by the finger pulp of human finger end by concave-convex skin
Lines.Fingerprint is to be formed by lines by concave-convex skin in the finger pulp of human finger end, since the fingerprint of people is heredity and ring
Border is coefficient, also closely related with human health, thus fingerprint everybody all have, it is different, due to fingerprint repeat
Rate is minimum, and about 1/15000000000th, therefore it is known as " human body identity card ".It is based on this feature of fingerprint, fingerprint is as body
The information of part certification is widely used.Often there is interruption, bifurcated or turnover, these breakpoints, bifurcation and turnover in fingerprint lines
Point is referred to as " characteristic point ".Everyone fingerprint lines is different on pattern, breakpoint and crosspoint, is uniquely, by this
Kind uniqueness and stability, we could create fingerprint identification technology.Everyone skin lines including fingerprint pattern,
It is different on breakpoint and crosspoint, present uniqueness and throughout one's life it is constant.Fingerprint identification technology possesses that recognition speed is fast, acquisition side
Just with it is cheap the advantages that, be widely used in numerous ambits such as image procossing, pattern-recognition, computer vision.
Generally in the application of fingerprint recognition, user is usually in advance by several groups of fingerprint input databases, each group of fingerprint
For the corresponding fingerprint of a finger of user.For example, one group of fingerprint is the fingerprint of the index finger of user, another group of fingerprint is user's
Thumbprint.For each group, system can extract the information such as the characteristic point of this group of fingerprint, and save into one group of fingerprint
Corresponding feature point template.When user, which needs to input fingerprint, carries out a certain operation, fingerprint is placed on fingerprint recognition and filled by user
It sets, so that fingerprint identification device identifies the fingerprint of user's input, terminal extracts the spy of the fingerprint of user input later
Point is levied, and is matched one by one with the multiple groups fingerprint in the preparatory input database of user before, if the spy of the fingerprint of user's input
Feature Points Matching of the sign point with one group of fingerprint of typing preparatory in the database of terminal, then successful match, terminal allow to execute phase
The operation answered.For example, such as user needs to be unlocked the screen of terminal, at this point, when the fingerprint matching success of user's input,
Terminal is by unlocking screen.
Obtaining good fingerprint image is a sufficiently complex problem.Because the fingerprint for measurement is only fairly small
A piece of epidermis, so fingerprint collecting equipment should have resolution ratio good enough to obtain the details of fingerprint.Presently used fingerprint image
As acquisition equipment, it is substantially based on three kinds of technical foundation: optical technology, semiconductor silicon technology, ultrasonic technology.
It is that history is most remote, most popular technology by optical technology acquisition fingerprint.Place a finger on optical mirror slip
On, finger in the built-in light irradiation, is incident upon on charge-coupled device with prism, and then forms crestal line (fingerprint image
In the streakline with one fixed width and trend) in black, valley line (depressed section between streakline) it is white it is digitized, can
By the multi-grayscale fingerprint image of fingerprint equipment algorithm process.
Light sensation screen fingerprint identification technology shields lower fingerprint identification technology, and identification mould group is exactly placed on handset screen
Under plate, light is penetrated by the RGB that mould group emits when identification and penetrates panel in finger tip formation fingerprint light film, will then be acquired
Finger print information feed back to identification mould group, pass through system compare complete operation.Illustratively, as shown in Figure 1, electronic equipment is
101, display screen 102, it is fingerprint enlarged drawing that the predeterminable area for acquiring fingerprint, which is 103,104,；One acquisition of electronic equipment 101 refers to
The schematic diagram of line 104, when finger contact screen, the light that OLED screen curtain issues penetrates cover board and illuminates fingerprint texture, fingerprint
Reflection light penetrates screen Returning sensor, ultimately forms fingerprint image to be identified.
Before relatively fingerprint and storing data, scanner processor will ensure to have got clearly image.It can be examined
The average value of pixel darkness or the integral value of a small sample are looked into, if image is integrally too dark or too bright, which will
It is abandoned.Then the scanner adjustment time for exposure is to allow more or less light to enter, then run-down.If darkness
Properly, beam scanner system will continue to the clarity (acutance of finger scan) of check image.Processor will check edge on the image
Several straight lines vertically and horizontally moved.If the line vertical with ridge line is handed over by very dark pixel and the non-pixel being always on
Mutually composition, it means that fingerprint image has good clarity.
Fingerprint recognition system is a typical pattern recognition system, including fingerprint image obtains, processing, feature extraction and
Compare peer modules.
Wherein, touch screen includes display screen and touch panel (Touch Panel, TP), and touch screen includes fingerprint collecting area
Domain.The fingerprint collecting region is the panel region in touch screen, i.e., size can for multiple fingers simultaneously press big region, and
The non-zonule that can be only pressed for single finger.Position where the fingerprint collecting region can be the middle area of touch screen
Domain, the upper partial region of touch screen, lower partial region of touch screen etc., are not limited thereto.
Referring to Fig. 2, Fig. 2 is that the embodiment of the present application provides a kind of flow diagram of fingerprint collecting method, it is applied to
Electronic equipment, the predeterminable area of the display screen of the electronic equipment are provided with the lower fingerprint mould group of screen；As shown, this fingerprint collecting
Method includes:
S201, the electronic equipment open photosensitive sensors and acquire light sensation value.
Wherein, the predeterminable area can be the downside or upper portion display area of the display screen, with specific reference to
Shield the setting position of lower fingerprint mould group to determine.
Optionally, before opening photosensitive sensors acquisition light sensation value, triggering command, the triggering command can also be obtained
Including key command, gesture instruction and phonetic order.
Wherein, before electronic equipment opens photosensitive sensors, electronic equipment is in non-unlocked state, triggers when detecting
When instruction, control starting photosensitive sensors, and acquire the finger print information of user.
S202, the electronic equipment detect whether the light sensation value is greater than or equal to preset threshold.
Wherein, preset threshold can be 50000lux, 40000lux etc., not do unique restriction herein.
Optionally, after whether the detection light sensation value is greater than or equal to preset threshold, the method also includes:
If it is not, being the second brightness by the brightness adjustment of the display screen；User fingerprint image is acquired under second brightness, obtains mesh
Mark fingerprint image.
Wherein, second brightness can be 100% brightness of display screen in electronic equipment, i.e., current display screen is highlighted
State.
As it can be seen that the brightness in this example, when electronic equipment is according to display screen current environmental light brightness adjustment acquisition fingerprint
Value, is conducive to the acquisition of finger print information, eliminates the influence of light interference, improves the accuracy and efficiency of acquisition finger print information.
S203, if so, the electronic equipment is then in the case where the brightness of the display screen is the first brightness, acquisition at least one the
One fingerprint image, the display screen brightness be the second brightness under, acquire at least second fingerprint image, obtain at least two
Fingerprint image is opened, first brightness is less than second brightness.
Wherein, first brightness can be 0% brightness of display screen in electronic equipment, i.e., current display screen is blank screen shape
State, second brightness can be 100% brightness of display screen in electronic equipment, i.e., current display screen is highlighted state, i.e., not
Same brightness of display screen can be strong optical mode, normal mode or blank screen mode.
For example, electronic equipment starting photosensitive sensors read light sensation value, when detect light intensity reach 50000lux with
When upper, into strong optical mode --- it is first that the brightness tune of display screen under finger is black, first finger of acquisition is penetrated using ambient light
Print image is set as A；Next the brightness of display screen is got to highlighted, then acquires second fingerprint image, is set as B, by B-
A, to obtain target fingerprint image, if light sensation in 50000lux or less, into normal mode, by display screen under finger
Brightness be transferred to it is highlighted, then acquire target fingerprint image.
S204, the electronic equipment determine target fingerprint image according at least two fingerprint images.
Optionally, described at least two fingerprint images determine target fingerprint image according to, comprising: scanning is described at least
One the first fingerprint image and at least second fingerprint image, obtain the image feature value of every fingerprint image；By institute
It states each image feature value to compare with default characteristic value, chooses the first object characteristic value and second for being greater than pre-set image characteristic value
Object feature value, the first object characteristic value are chosen from least first fingerprint image, second target
Characteristic value is chosen from least second fingerprint image；By the first object fingerprint image and second target
Fingerprint image does image difference operation, obtains target fingerprint image.
Wherein, the default characteristic value can analyze the fingerprint mould that user records on an electronic device in advance for electronic equipment
The characteristic value that plate obtains.
Wherein, it is one-to-one relationship between the fingerprint image and image feature value.
Wherein, image difference operation is also known as image subtraction operation, refers to the figure shot to same scenery in different time
Picture or same scenery are subtracted each other in the image of different-waveband, obtain the process of an output image.
As it can be seen that electronic equipment can pass through its characteristic value from multiple fingerprint images in this example, optimal fingerprint image is obtained
Picture avoids the occurrence of the blurred image situation of acquisition, and the fingerprint image chosen is being done calculus of differences, is able to solve light interference
The problem of, the quasi- fingerprint image gone is obtained, so that unlock success rate improves, improves the standard that electronic equipment carries out fingerprint collecting
True property and intelligence.
Optionally, at least two fingerprint images include the first fingerprint image and the second fingerprint image, described according to institute
It states at least two fingerprint images and determines target fingerprint image, comprising: by first fingerprint image and second fingerprint image
Image difference operation is done, target fingerprint image is obtained.
Wherein, first fingerprint image and second fingerprint image are in same position.
As it can be seen that the brightness in this example, when electronic equipment is according to display screen current environmental light brightness adjustment acquisition fingerprint
Value, is conducive to the acquisition of finger print information, and fingerprint recognition speed is fast, precisely, and by calculus of differences, eliminates the shadow of light interference
It rings, improves the accuracy and efficiency of acquisition finger print information, user experience is more preferable.
As can be seen that electronic equipment first turns on photosensitive sensors acquisition light sensation value, secondly, inspection in the embodiment of the present application
Survey whether the light sensation value is greater than or equal to preset threshold, then, if so, the brightness in the display screen is the first brightness
Under, at least first fingerprint image is acquired, is at least one second finger of acquisition under the second brightness in the brightness of the display screen
Print image obtains at least two fingerprint images, and first brightness is less than second brightness, finally, according to described at least two
It opens fingerprint image and determines target fingerprint image.As it can be seen that the electronic equipment of the embodiment of the present application can be acquired according to photosensitive sensors
The light sensation degree of current display screen adjusts the brightness of different display screens according to different light sensation degree, and further acquisition exists
Fingerprint image under different brightness, the application be able to solve light interference the problem of, acquire accurate fingerprint so that unlock at
Power improves, and improves accuracy and intelligence that electronic equipment carries out fingerprint collecting.
It is appreciated that the method is also wrapped before at least two fingerprint images determine target fingerprint image according to
It includes: determining the first touch screen position of first fingerprint image and the second touch screen position of second fingerprint image；It will
First touch screen position and second touch screen position match, and obtain matching value；If the matching value is lower than default
Matching value then calibrates first fingerprint image and second fingerprint image, and the reference first after being calibrated refers to
The second fingerprint image of print image and reference, the first fingerprint image of the reference and the second fingerprint image of the reference are used for the figure
As calculus of differences.
Wherein, electronic equipment is calculated by the relative different of charge on each angle, is accurately located touch event hair
Raw position, and this information is transferred to touch screen driver.
Wherein, the touch screen position of optimal fingerprint image is the predeterminable area of display screen, by adjusting the preset areas
The brightness value in domain, the brightness of the predeterminable area, which is increased to, to use the luminance threshold of clear and accurate acquisition finger print information, just
In the acquisition of fingerprint.
Wherein, manufacturer makes by oneself when preset matching value is factory.
Wherein, described image correction, which refers to, establishes the restoration processing that distorted image carries out according to image fault reason
The valuation of realistic images can be calculated from fault image, make it according to prespecified mistake for corresponding mathematical model
Poor criterion, along the inverse process for being distorted image utmostly restore close to realistic images.
As it can be seen that electronic equipment needs to meet precondition, acquires twice when carrying out image difference operation in this example
Picture position need on same corresponding position, if not existing, carry out image calibration after, carry out calculus of differences, be conducive to refer to
The accuracy and intelligence of line information collection.
It is appreciated that the method is also wrapped after at least two fingerprint images determine target fingerprint image according to
It includes: the target fingerprint image is matched with preset fingerprint template, obtain with reference to matching value；If described big with reference to matching value
Locking screen interface is removed then by authentication in or equal to preset matching value；Alternatively, being preset if the reference matching value is less than
Matching value then retrieves target fingerprint image.
Wherein, the preset fingerprint template is the fingerprint template that user records on an electronic device in advance.
Wherein, preset matching value can be the similarity of image.
In the specific implementation, finger print information and electronics that electronic equipment after detecting the finger print information, will test are set
Standby preset finger print information is matched.For example, user's index finger touch-controlled electronic devices display screen, electronic equipment detect index finger
Fingerprint after, preset finger print information compares one by one in the index fingerprint and electronic equipment that will test, obtains preset fingerprint letter
The matching degree of the highest finger print information of matching degree in breath.After authentication, main interface or the certain applications of starting are shown
Deng.
As it can be seen that the target fingerprint image that electronic equipment will eventually determine is matched with fingerprint template in this example, improve
The accuracy of authentication has ensured the safety of facility information, improves electronic equipment and carries out accuracy and peace that fingerprint is set
Quan Xing.
In a possible example, the brightness in the display screen is under the first brightness, acquisition at least one the
One fingerprint image, the display screen brightness be the second brightness under, acquire at least second fingerprint image, obtain at least two
Open fingerprint image, comprising: when the first brightness of the display screen is 0, acquire at least first fingerprint image；Described aobvious
The brightness of display screen is to acquire at least second fingerprint image under the second brightness.
Wherein, the scene that first brightness is 0 can refer to closing display screen, or the LCD screen for there is backlight, close
Backlight is closed, itself complete non-luminous scene does not do unique restriction herein.
As it can be seen that electronic equipment acquires the fingerprint under the specific condition that the first brightness of display screen is blank screen first in this example
Image, the fingerprint image in the case where acquiring second display screen brightness improves electronic equipment according to two different brightness later
Carry out the accuracy and intelligence of fingerprint collecting.
It is consistent with above-mentioned embodiment shown in Fig. 2, referring to Fig. 3, Fig. 3 is a kind of fingerprint provided by the embodiments of the present application
The flow diagram of acquisition method, applied to electronic equipment as described in Figure 1, the predeterminable area of the display screen of the electronic equipment
It is provided with the lower fingerprint mould group of screen, as shown, this fingerprint collecting method includes:
S301, the electronic equipment open photosensitive sensors and acquire light sensation value.
S302, the electronic equipment detect whether the light sensation value is greater than or equal to preset threshold.
S303, the electronic equipment acquire the first fingerprint image in the case where the brightness of the display screen is the first brightness.
S304, the electronic equipment acquire the second fingerprint image in the case where the brightness of the display screen is the second brightness.
First fingerprint image and second fingerprint image are done image difference operation by S305, the electronic equipment,
Obtain target fingerprint image.
As can be seen that electronic equipment first turns on photosensitive sensors acquisition light sensation value, secondly, inspection in the embodiment of the present application
Survey whether the light sensation value is greater than or equal to preset threshold, then, if so, the brightness in the display screen is the first brightness
Under, at least first fingerprint image is acquired, is at least one second finger of acquisition under the second brightness in the brightness of the display screen
Print image obtains at least two fingerprint images, and first brightness is less than second brightness, finally, according to described at least two
It opens fingerprint image and determines target fingerprint image.As it can be seen that the electronic equipment of the embodiment of the present application can be acquired according to photosensitive sensors
The light sensation degree of current display screen adjusts the brightness of different display screens according to different light sensation degree, and further acquisition exists
Fingerprint image under different brightness, the application be able to solve light interference the problem of, acquire accurate fingerprint so that unlock at
Power improves, and improves accuracy and intelligence that electronic equipment carries out fingerprint collecting.
In addition, brightness value when electronic equipment is according to display screen current environmental light brightness adjustment acquisition fingerprint, is conducive to
The acquisition of finger print information, fingerprint recognition speed is fast, precisely, and by calculus of differences, eliminates the influence of light interference, improves acquisition
The accuracy and efficiency of finger print information, user experience are more preferable.
It is consistent with above-mentioned embodiment shown in Fig. 2, referring to Fig. 4, Fig. 4 is a kind of fingerprint provided by the embodiments of the present application
The flow diagram of acquisition method, applied to electronic equipment as described in Figure 1, the predeterminable area of the display screen of the electronic equipment
It is provided with the lower fingerprint mould group of screen, as shown, this fingerprint collecting method includes:
S401, the electronic equipment open photosensitive sensors and acquire light sensation value.
S402, the electronic equipment detect whether the light sensation value is greater than or equal to preset threshold.
S403, if it is not, the brightness adjustment of the display screen is the second brightness by the electronic equipment.
S404, the electronic equipment acquire user fingerprint image under second brightness, obtain target fingerprint image.
S405, the electronic equipment match the target fingerprint image with preset fingerprint template, obtain with reference to
With value.
S406, by authentication, removes screen locking circle if described be greater than or equal to preset matching value with reference to matching value
Face.
As can be seen that electronic equipment first turns on photosensitive sensors acquisition light sensation value, secondly, inspection in the embodiment of the present application
Survey whether the light sensation value is greater than or equal to preset threshold, then, if so, the brightness in the display screen is the first brightness
Under, at least first fingerprint image is acquired, is at least one second finger of acquisition under the second brightness in the brightness of the display screen
Print image obtains at least two fingerprint images, and first brightness is less than second brightness, finally, according to described at least two
It opens fingerprint image and determines target fingerprint image.As it can be seen that the electronic equipment of the embodiment of the present application can be acquired according to photosensitive sensors
The light sensation degree of current display screen adjusts the brightness of different display screens according to different light sensation degree, and further acquisition exists
Fingerprint image under different brightness, the application be able to solve light interference the problem of, acquire accurate fingerprint so that unlock at
Power improves, and improves accuracy and intelligence that electronic equipment carries out fingerprint collecting.
In addition, brightness value when electronic equipment is according to display screen current environmental light brightness adjustment acquisition fingerprint, is conducive to
The acquisition of finger print information, fingerprint recognition speed is fast, precisely, and by calculus of differences, eliminates the influence of light interference, improves acquisition
The accuracy and efficiency of finger print information, user experience are more preferable.
In addition, the target fingerprint image that electronic equipment will eventually determine is matched with fingerprint template, authentication is improved
Accuracy, ensured the safety of facility information, improved electronic equipment and carry out accuracy and safety that fingerprint is set.
It is consistent with above-mentioned Fig. 2, Fig. 3, embodiment shown in Fig. 4, referring to Fig. 5, Fig. 5 is provided by the embodiments of the present application
The structural schematic diagram of a kind of electronic equipment 500, as shown, the electronic equipment 500 includes application processor 510, memory
520, communication interface 530 and one or more programs 521, wherein one or more of programs 521 are stored in above-mentioned deposit
In reservoir 520, and it is configured to be executed by above-mentioned application processor 510, one or more of programs 521 include for executing
The instruction of following steps；
It opens photosensitive sensors and acquires light sensation value；
Detect whether the light sensation value is greater than or equal to preset threshold；
If so, the brightness in the display screen is acquisition at least first fingerprint image, described under the first brightness
The brightness of display screen is to acquire at least second fingerprint image under the second brightness, obtain at least two fingerprint images, described the
One brightness is less than second brightness；
Target fingerprint image is determined according at least two fingerprint images.
As can be seen that electronic equipment first turns on photosensitive sensors acquisition light sensation value, secondly, inspection in the embodiment of the present application
Survey whether the light sensation value is greater than or equal to preset threshold, then, if so, the brightness in the display screen is the first brightness
Under, at least first fingerprint image is acquired, is at least one second finger of acquisition under the second brightness in the brightness of the display screen
Print image obtains at least two fingerprint images, and first brightness is less than second brightness, finally, according to described at least two
It opens fingerprint image and determines target fingerprint image.As it can be seen that the electronic equipment of the embodiment of the present application can be acquired according to photosensitive sensors
The light sensation degree of current display screen adjusts the brightness of different display screens according to different light sensation degree, and further acquisition exists
Fingerprint image under different brightness, the application be able to solve light interference the problem of, acquire accurate fingerprint so that unlock at
Power improves, and improves accuracy and intelligence that electronic equipment carries out fingerprint collecting.
In a possible example, at least two fingerprint images determine target fingerprint image side according to described
Face, the instruction in described program are specifically used for executing following operation: scan at least first fingerprint image and it is described extremely
Few second fingerprint image, obtains the image feature value of every fingerprint image；By each image feature value and default spy
Value indicative compares, and chooses the first object characteristic value and the second object feature value for being greater than pre-set image characteristic value, the first object
Characteristic value is chosen from least first fingerprint image, and second object feature value is from described at least one
It is chosen in two fingerprint images；The first object fingerprint image and the second target fingerprint image are done into image difference operation,
Obtain target fingerprint image.
In a possible example, at least two fingerprint images include the first fingerprint image and the second fingerprint image
Picture, described in terms of at least two fingerprint images determine target fingerprint image according to, the instruction in described program is specifically used
The operation below executing: first fingerprint image and second fingerprint image are done into image difference operation, target is obtained and refers to
Print image.
In a possible example, at least two fingerprint images according to determine target fingerprint image it
Before, described program further includes instructions for performing the following operations: determining the first touch screen position of first fingerprint image
With the second touch screen position of second fingerprint image；First touch screen position and second touch screen position are done
Matching, obtains matching value；If the matching value is lower than preset matching value, by first fingerprint image and second fingerprint
Image is calibrated, the second fingerprint image of the first fingerprint image of reference and reference after being calibrated, described to refer to the first fingerprint
Image and the second fingerprint image of the reference are used for described image calculus of differences.
In a possible example, after whether the detection light sensation value is greater than or equal to preset threshold, institute
The instruction in program is stated also particularly useful for operation below executing: if it is not, being the second brightness by the brightness adjustment of the display screen；?
User fingerprint image is acquired under second brightness, obtains target fingerprint image.
In a possible example, after at least two fingerprint images determine target fingerprint image according to, institute
Stating program further includes for performing the following operations: the target fingerprint image being matched with preset fingerprint template, is joined
Examine matching value；If described be greater than or equal to preset matching value with reference to matching value, by authentication, locking screen interface is removed；Or
Person retrieves target fingerprint image if described be less than preset matching value with reference to matching value.
In a possible example, the brightness in the display screen is under the first brightness, acquisition at least one the
One fingerprint image, the display screen brightness be the second brightness under, acquire at least second fingerprint image, obtaining at least
In terms of two fingerprint images, the instruction in described program is specifically used for executing following operation: in the first brightness of the display screen
When being 0, at least first fingerprint image is acquired；In the case where the brightness of the display screen is the second brightness, acquisition at least one the
Two fingerprint images.
It is above-mentioned that mainly the scheme of the embodiment of the present application is described from the angle of method side implementation procedure.It is understood that
, in order to realize the above functions, it comprises execute the corresponding hardware configuration of each function and/or software mould for electronic equipment
Block.Those skilled in the art should be readily appreciated that, in conjunction with each exemplary unit of embodiment description presented herein
And algorithm steps, the application can be realized with the combining form of hardware or hardware and computer software.Some function actually with
Hardware or computer software drive the mode of hardware to execute, the specific application and design constraint item depending on technical solution
Part.Professional technician can specifically realize described function to each using distinct methods, but this reality
Now it is not considered that exceeding scope of the present application.
The embodiment of the present application can carry out the division of functional unit according to above method example to electronic equipment, for example, can
With each functional unit of each function division of correspondence, two or more functions can also be integrated in a processing unit
In.Above-mentioned integrated unit both can take the form of hardware realization, can also realize in the form of software functional units.It needs
It is noted that be schematical, only a kind of logical function partition to the division of unit in the embodiment of the present application, it is practical real
It is current that there may be another division manner.
Fig. 6 is the functional unit composition block diagram of fingerprint acquisition device 600 involved in the embodiment of the present application.The fingerprint is adopted
Acquisition means 600 are applied to electronic equipment, including acquisition unit 601, detection unit 602 and determination unit 603, wherein
The acquisition unit 601, for opening photosensitive sensors acquisition light sensation value；
The detection unit 602, for detecting whether the light sensation value is greater than or equal to preset threshold；
The acquisition unit 601, be also used to if so, the display screen brightness be the first brightness under, acquisition at least
One the first fingerprint image, the display screen brightness be the second brightness under, acquire at least second fingerprint image, obtain
At least two fingerprint images, first brightness are less than second brightness；
The determination unit 603, for determining target fingerprint image according at least two fingerprint images.
Wherein, the fingerprint acquisition device 600 can also include storage unit 604, for storing the program of electronic equipment
Code and data, storage unit 604 can be memory.
As can be seen that electronic equipment first turns on photosensitive sensors acquisition light sensation value, secondly, inspection in the embodiment of the present application
Survey whether the light sensation value is greater than or equal to preset threshold, then, if so, the brightness in the display screen is the first brightness
Under, at least first fingerprint image is acquired, is at least one second finger of acquisition under the second brightness in the brightness of the display screen
Print image obtains at least two fingerprint images, and first brightness is less than second brightness, finally, according to described at least two
It opens fingerprint image and determines target fingerprint image.As it can be seen that the electronic equipment of the embodiment of the present application can be acquired according to photosensitive sensors
The light sensation degree of current display screen adjusts the brightness of different display screens according to different light sensation degree, and further acquisition exists
Fingerprint image under different brightness, the application be able to solve light interference the problem of, acquire accurate fingerprint so that unlock at
Power improves, and improves accuracy and intelligence that electronic equipment carries out fingerprint collecting.
In a possible example, at least two fingerprint images determine target fingerprint image side according to described
Face, the determination unit 603 are specifically used for: scanning at least first fingerprint image and at least second fingerprint
Image obtains the image feature value of every fingerprint image；Each image feature value is compared with default characteristic value, is chosen big
In the first object characteristic value and the second object feature value of pre-set image characteristic value, the first object characteristic value be from it is described to
It is chosen in few first fingerprint image, second object feature value is selected from least second fingerprint image
It takes；The first object fingerprint image and the second target fingerprint image are done into image difference operation, obtain target fingerprint figure
Picture.
In a possible example, at least two fingerprint images include the first fingerprint image and the second fingerprint image
Picture, described in terms of at least two fingerprint images determine target fingerprint image according to, the determination unit 603 is specifically used
In: first fingerprint image and second fingerprint image are done into image difference operation, obtain target fingerprint image.
In a possible example, the determination unit 603 also particularly useful for: it is described according at least two finger
Before print image determines target fingerprint image, determine first fingerprint image the first touch screen position and second fingerprint
Second touch screen position of image；First touch screen position and second touch screen position are matched, matched
Value；If the matching value is lower than preset matching value, first fingerprint image and second fingerprint image are calibrated,
The second fingerprint image of the first fingerprint image of reference and reference after being calibrated, it is described to refer to the first fingerprint image and the reference
Second fingerprint image is used for described image calculus of differences.
Whether in a possible example, the acquisition unit 601 is specifically used for: big in the detection light sensation value
After preset threshold, if it is not, being the second brightness by the brightness adjustment of the display screen；It is adopted under second brightness
Collect user fingerprint image, obtains target fingerprint image.
In a possible example, the detection unit 602 is at least two fingerprint images determinations according to
It after target fingerprint image, is also used to: the target fingerprint image is matched with preset fingerprint template, obtain with reference to matching
Value；If described be greater than or equal to preset matching value with reference to matching value, by authentication, locking screen interface is removed；Alternatively, if institute
It states and is less than preset matching value with reference to matching value, then retrieve target fingerprint image.
In a possible example, the brightness in the display screen is under the first brightness, acquisition at least one the
One fingerprint image, the display screen brightness be the second brightness under, acquire at least second fingerprint image, obtaining at least
In terms of two fingerprint images, the acquisition unit 601 is specifically used for: when the first brightness of the display screen is 0, acquisition is at least
One the first fingerprint image；It is acquisition at least second fingerprint image under the second brightness in the brightness of the display screen.
The embodiment of the present application also provides a kind of computer storage medium, wherein computer storage medium storage is for electricity
The computer program of subdata exchange, the computer program make computer execute any as recorded in above method embodiment
Some or all of method step, above-mentioned computer include electronic equipment.
The embodiment of the present application also provides a kind of computer program product, and above-mentioned computer program product includes storing calculating
The non-transient computer readable storage medium of machine program, above-mentioned computer program are operable to that computer is made to execute such as above-mentioned side
Some or all of either record method step in method embodiment.The computer program product can be a software installation
Packet, above-mentioned computer includes electronic equipment.
It should be noted that for the various method embodiments described above, for simple description, therefore, it is stated as a series of
Combination of actions, but those skilled in the art should understand that, the application is not limited by the described action sequence because
According to the application, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art should also know
It knows, the embodiments described in the specification are all preferred embodiments, related actions and modules not necessarily the application
It is necessary.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed device, it can be by another way
It realizes.For example, the apparatus embodiments described above are merely exemplary, such as the division of said units, it is only a kind of
Logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine or can
To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of device or unit,
It can be electrical or other forms.
Above-mentioned unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If above-mentioned integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer-readable access to memory.Based on this understanding, the technical solution of the application substantially or
Person says that all or part of the part that contributes to existing technology or the technical solution can body in the form of software products
Reveal and, which is stored in a memory, including some instructions are used so that a computer equipment
(can be personal computer, server or network equipment etc.) executes all or part of each embodiment above method of the application
Step.And memory above-mentioned includes: USB flash disk, read-only memory (ROM, Read-Only Memory), random access memory
The various media that can store program code such as (RAM, Random Access Memory), mobile hard disk, magnetic or disk.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can store in a computer-readable memory, memory
May include: flash disk, read-only memory (English: Read-Only Memory, referred to as: ROM), random access device (English:
Random Access Memory, referred to as: RAM), disk or CD etc..
The embodiment of the present application is described in detail above, specific case used herein to the principle of the application and
Embodiment is expounded, the description of the example is only used to help understand the method for the present application and its core ideas；
At the same time, for those skilled in the art can in specific embodiments and applications according to the thought of the application
There is change place, in conclusion the contents of this specification should not be construed as limiting the present application.
Claims (10)
1. a kind of fingerprint collecting method, which is characterized in that be applied to electronic equipment, the preset areas of the display screen of the electronic equipment
Domain is provided with the lower fingerprint mould group of screen, which comprises
It opens photosensitive sensors and acquires light sensation value；
Detect whether the light sensation value is greater than or equal to preset threshold；
If so, the brightness in the display screen is acquisition at least first fingerprint image, in the display screen under the first brightness
Brightness be the second brightness under, acquire at least second fingerprint image, obtain at least two fingerprint images, first brightness
Less than second brightness；
Target fingerprint image is determined according at least two fingerprint images.
2. the method according to claim 1, wherein described, at least two fingerprint images determine target according to
Fingerprint image, comprising:
At least first fingerprint image and at least second fingerprint image are scanned, every fingerprint image is obtained
Image feature value；
Each image feature value is compared with default characteristic value, chooses the first object feature for being greater than pre-set image characteristic value
Value and the second object feature value, the first object characteristic value is chosen from least first fingerprint image, described
Second object feature value is chosen from least second fingerprint image；
The first object fingerprint image and the second target fingerprint image are done into image difference operation, obtain target fingerprint figure
Picture.
3. the method according to claim 1, wherein at least two fingerprint images include the first fingerprint image
With the second fingerprint image, described at least two fingerprint images determine target fingerprint image according to, comprising:
First fingerprint image and second fingerprint image are done into image difference operation, obtain target fingerprint image.
4. according to the method in claim 2 or 3, which is characterized in that at least two fingerprint images are true according to described
It sets the goal before fingerprint image, the method also includes:
Determine the first touch screen position of first fingerprint image and the second touch screen position of second fingerprint image；
First touch screen position and second touch screen position are matched, matching value is obtained；
If the matching value is lower than preset matching value, first fingerprint image and second fingerprint image are subjected to school
Standard, the second fingerprint image of the first fingerprint image of reference and reference after being calibrated are described with reference to the first fingerprint image and described
Described image calculus of differences is used for reference to the second fingerprint image.
5. the method according to claim 1, wherein whether being greater than or equal in the detection light sensation value pre-
If after threshold value, the method also includes:
If it is not, being the second brightness by the brightness adjustment of the display screen；
User fingerprint image is acquired under second brightness, obtains target fingerprint image.
6. method according to claim 1 or 5, which is characterized in that at least two fingerprint images are true according to described
It sets the goal after fingerprint image, the method also includes:
The target fingerprint image is matched with preset fingerprint template, is obtained with reference to matching value；
If described be greater than or equal to preset matching value with reference to matching value, by authentication, locking screen interface is removed；Alternatively,
If described be less than preset matching value with reference to matching value, target fingerprint image is retrieved.
7. the method according to claim 1, wherein the brightness in the display screen be the first brightness under,
At least first fingerprint image is acquired, is acquisition at least second fingerprint under the second brightness in the brightness of the display screen
Image obtains at least two fingerprint images, comprising:
When the first brightness of the display screen is 0, at least first fingerprint image is acquired；
It is acquisition at least second fingerprint image under the second brightness in the brightness of the display screen.
8. a kind of fingerprint acquisition device, which is characterized in that be applied to electronic equipment, the preset areas of the display screen of the electronic equipment
Domain is provided with the lower fingerprint mould group of screen, and the fingerprint acquisition device includes acquisition unit, detection unit and determination unit, wherein
The acquisition unit, for opening photosensitive sensors acquisition light sensation value；
The detection unit, for detecting whether the light sensation value is greater than or equal to preset threshold；
The acquisition unit is also used to if so, being acquisition at least one first under the first brightness in the brightness of the display screen
Fingerprint image, the display screen brightness be the second brightness under, acquire at least second fingerprint image, obtain at least two
Fingerprint image, first brightness are less than second brightness；
The determination unit, for determining target fingerprint image according at least two fingerprint images.
9. a kind of electronic equipment, which is characterized in that including processor, memory, communication interface, and one or more programs,
One or more of programs are stored in the memory, and are configured to be executed by the processor, described program packet
Include the instruction for executing the step in the method according to claim 1 to 7.
10. a kind of computer readable storage medium, which is characterized in that storage is used for the computer program of electronic data interchange,
In, the computer program makes computer execute the method according to claim 1 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811414144.6A CN109711255A (en) | 2018-11-26 | 2018-11-26 | Fingerprint collecting method and relevant apparatus |
| PCT/CN2019/114675 WO2020108225A1 (en) | 2018-11-26 | 2019-10-31 | Fingerprint acquisition method and related apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811414144.6A CN109711255A (en) | 2018-11-26 | 2018-11-26 | Fingerprint collecting method and relevant apparatus |
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| CN109711255A true CN109711255A (en) | 2019-05-03 |
Family
ID=66255089
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811414144.6A Pending CN109711255A (en) | 2018-11-26 | 2018-11-26 | Fingerprint collecting method and relevant apparatus |
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| CN (1) | CN109711255A (en) |
| WO (1) | WO2020108225A1 (en) |
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| CN110188698A (en) * | 2019-05-31 | 2019-08-30 | Oppo广东移动通信有限公司 | A kind of method for controlling fingerprint identification, device and computer readable storage medium |
| CN110290242A (en) * | 2019-06-24 | 2019-09-27 | Oppo广东移动通信有限公司 | Display device, electronic equipment and image acquiring method |
| WO2020108225A1 (en) * | 2018-11-26 | 2020-06-04 | Oppo广东移动通信有限公司 | Fingerprint acquisition method and related apparatus |
| CN112101240A (en) * | 2020-05-14 | 2020-12-18 | 神盾股份有限公司 | Electronic device with fingerprint sensing function and fingerprint sensing method |
| CN113297880A (en) * | 2020-02-24 | 2021-08-24 | Oppo广东移动通信有限公司 | Fingerprint acquisition method, fingerprint acquisition device, fingerprint acquisition terminal and storage medium |
| CN113963385A (en) * | 2021-09-30 | 2022-01-21 | 北京极豪科技有限公司 | Fingerprint image acquisition method and device and electronic equipment |
| CN114187615A (en) * | 2020-09-12 | 2022-03-15 | 北京彼岸行舟科技有限公司 | Fingerprint image extraction method |
| WO2022213382A1 (en) * | 2021-04-09 | 2022-10-13 | 深圳市汇顶科技股份有限公司 | Fingerprint recognition method and apparatus, and electronic device |
| WO2023116063A1 (en) * | 2021-12-23 | 2023-06-29 | 荣耀终端有限公司 | Method and apparatus for eliminating interference pattern from image |
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| US11372501B1 (en) | 2021-05-10 | 2022-06-28 | Novatek Microelectronics Corp. | Control method and control circuit for fingerprint sensing |
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Application publication date: 20190503 |