CN105893989A - Dynamic calibration method for ultrasonic fingerprint identification, device and electronic device - Google Patents
Dynamic calibration method for ultrasonic fingerprint identification, device and electronic device Download PDFInfo
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- CN105893989A CN105893989A CN201610341740.0A CN201610341740A CN105893989A CN 105893989 A CN105893989 A CN 105893989A CN 201610341740 A CN201610341740 A CN 201610341740A CN 105893989 A CN105893989 A CN 105893989A
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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
- G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
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Abstract
The invention discloses a dynamic calibration method for ultrasonic fingerprint identification, a device for ultrasonic fingerprint identification and an electronic device. The method includes the following steps that: the current environment temperature value of an external environment is obtained; and if the current temperature value satisfies a triggering calibration condition, background image calibration is carried out, and background image update is carried out according to a calibration result. According to the method, device and electronic device of the invention, a dynamic calibration scheme according to which the background image calibration is triggered according to the environment temperature, so that recognition accuracy of an ultrasonic fingerprint sensor under different environment temperature can be effectively improved.
Description
Technical field
The present invention relates to ultrasonic fingerprint identification technical field, more particularly, to one for ultrasonic
The dynamic calibration method of the background picture of ripple fingerprint recognition, a kind of background for ultrasonic fingerprint identification
The dynamic calibration apparatus of picture and the electronic equipment of a kind of dynamic calibration function with background picture.
Background technology
Due to everyone skin lines (including fingerprint) on pattern, breakpoint and crosspoint each
Differ, the most uniquely, and the most constant, therefore, rely on this uniqueness and stability,
Createed fingerprint identification technology, i.e. fingerprint identification technology is that a people is mapped with his fingerprint,
By being compared with the fingerprint pre-saved by the fingerprint collected, verify the technology of its true identity.
And along with the development of electronic information technology, fingerprint identification technology is also applied in touch screen operating,
Operate electronic equipment for people and bring facility.
Owing to ultrasonic wave (frequency sound wave higher than 20000 hertz) has preferable directionality and wears by force
Ability thoroughly, it is possible to identify three-dimensional detail and the unique fingerprint feature of user's finger, therefore, the most
Through there being increasing electronic equipment production firm to favor in using ultrasonic fingerprint sensor to carry out fingerprint
Identify.
Ultrasonic fingerprint sensor carries out the general principle of fingerprint recognition: prestores and does not has on sensor
There is picture during finger as background picture, gather picture when having finger on sensor, and will gather
To picture subtracting background picture i.e. obtain the finger print information of finger.Here, owing to ultrasonic wave is in difference
Environment temperature under there is different spread speeds, therefore, the change of environment temperature will cause background
The authenticity of picture is deteriorated, and then will affect the recognition accuracy of ultrasonic fingerprint sensor, and this just needs
Background picture is calibrated.
Existing calibration program is manually to trigger calibration on product line, and calibration is based on environment at that time
Temperature, and due to user when using electronic equipment, residing environment temperature is likely to and calibrates time based on
Environment temperature different, and can change, therefore, existing calibration steps still cannot ensure to surpass
Sound wave fingerprint sensor can the most all ensure the accuracy identified.
Summary of the invention
One purpose of the embodiment of the present invention is to provide one can carry out Background according to environment temperature
The new technical scheme of the dynamic calibration of sheet.
According to the first aspect of the invention, it is provided that a kind of dynamic calibration for ultrasonic fingerprint identification
Method, comprising:
Obtain the current temperature value of external environment；
If described current temperature value meets the condition triggering calibration, then:
Carry out the calibration of background picture；
The renewal of background picture is carried out according to calibration result.
Optionally, described trigger calibration condition be: described current temperature value and normal temperature value it
Between the absolute value of difference exceed setting threshold value.
Optionally, described method also includes:
Record carries out current temperature value corresponding to current alignment as triggering in the condition calibrated next time
Normal temperature value.
Optionally, described method also includes:
If described current temperature value meets the condition triggering calibration, the most first judge that current time is the fullest
Foot carries out the time requirement of the calibration of background picture next time, in this way, then carries out the calibration of background picture.
According to the second aspect of the invention, it is provided that a kind of dynamic calibration for ultrasonic fingerprint identification
Device, comprising:
Temperature acquisition module, for obtaining the current temperature value of external environment；
Calibration trigger module, triggers, for judging whether described current temperature value meets, the condition calibrated,
In this way, then calibration is triggered:
Picture calibration module, in the case of triggering calibration at described calibration trigger module, carries on the back
The calibration of scape picture；And,
Picture more new module, for carrying out the renewal of background picture according to calibration result.
Optionally, described trigger calibration condition be: described current temperature value and normal temperature value it
Between the absolute value of difference exceed setting threshold value.
Optionally, described device also includes:
Condition more new module, record carries out current temperature value corresponding to current alignment as triggering next time
Normal temperature value in the condition of calibration.
Optionally, described device also includes:
Time judgment module, in the case of triggering calibration at described calibration trigger module, first judges
Whether current time meets the time requirement carrying out the calibration of background picture next time, in this way, then makes institute
State picture calibration module and carry out the calibration of background picture.
According to the third aspect of the invention we, it is provided that a kind of electronic equipment, it includes according to the present invention the
Dynamic calibration apparatus described in two aspects.
According to the fourth aspect of the invention, it is provided that a kind of electronic equipment, it includes memory, process
Device and ultrasonic fingerprint sensor, described memory is used for storing instruction, and described instruction is used for controlling institute
State processor to carry out operating to perform dynamic calibration method described according to a first aspect of the present invention；Described
Electronic equipment also includes temperature sensor, described temperature sensor for output temperature signal to processor,
So that described processor obtains the current temperature value of external environment according to described temperature signal.
It was found by the inventors of the present invention that in the prior art, there is existing calibration steps cannot ensure
The problem that ultrasonic fingerprint sensor can the most all ensure the accuracy identified.And
In the embodiment of the present invention, have employed the dynamic calibration scheme triggering background picture calibration according to environment temperature,
This will effectively solve this problem, and then it is accurate to improve the identification in user uses of the ultrasonic fingerprint sensor
Really property.
By detailed description to the exemplary embodiment of the present invention referring to the drawings, its of the present invention
Its feature and advantage thereof will be made apparent from.
Accompanying drawing explanation
Combined in the description and the accompanying drawing of the part that constitutes specification shows the reality of the present invention
Execute example, and together with its explanation for explaining the principle of the present invention.
Fig. 1 is the flow chart of a kind of embodiment according to dynamic calibration method of the present invention；
Fig. 2 is the flow chart of the another embodiment according to dynamic calibration method of the present invention；
Fig. 3 is a kind of frame principle figure implementing structure according to dynamic calibration apparatus of the present invention；
Fig. 4 is the another kind of frame principle figure implementing structure according to dynamic calibration apparatus of the present invention；
Fig. 5 is a kind of frame principle figure implementing structure according to electronic equipment of the present invention.
Detailed description of the invention
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should also be noted that
Unless specifically stated otherwise, the parts that illustrate the most in these embodiments and step positioned opposite,
Numerical expression and numerical value do not limit the scope of the invention.
Description only actually at least one exemplary embodiment is illustrative below, never makees
For to the present invention and application thereof or any restriction of use.
May not beg in detail for technology, method and apparatus known to person of ordinary skill in the relevant
Opinion, but in the appropriate case, described technology, method and apparatus should be considered a part for specification.
Shown here with in all examples discussed, any occurrence should be construed as merely example
Property rather than as limit.Therefore, other example of exemplary embodiment can have different
Value.
It should also be noted that similar label and letter represent similar terms, therefore, one in following accompanying drawing
A certain Xiang Yi the accompanying drawing of denier is defined, then need not it is carried out further in accompanying drawing subsequently
Discuss.
The present invention is to solve that manually triggering calibration on product line cannot ensure ultrasonic fingerprint sensor
The problem that can the most all ensure the accuracy identified, it is provided that a kind of according to environment temperature
The technical scheme of degree Dynamic trigger background picture calibration.
Fig. 1 is the flow chart of a kind of embodiment according to dynamic calibration method of the present invention.
According to Fig. 1, the inventive method comprises the steps:
Step S101, obtains the current temperature value of external environment, to carry out the detection of environment temperature.
This step S101 can farther include: receives the temperature sensor installed on an electronic device and adopts
The temperature signal that collection arrives；The current temperature value of external environment is obtained according to this temperature signal.
Here, the inventive method can support user choose whether open dynamic calibration function, so,
When performing the inventive method, need first to detect whether dynamic calibration function is in opening, in this way,
Just carry out the detection of environment temperature.
Step S102, it is judged that whether current temperature value meets the condition triggering calibration, in this way, then holds
Row step S103, as no, then return to step S101 and proceeds the detection of environment temperature.
Here, a condition triggering calibration can be arranged, it is also possible to be arranged as required to two or more
(including two) triggers the condition of calibration, for the latter, if could be arranged to meet arbitrary triggering
The condition of calibration i.e. performs step S103, it is also possible to is set to meet all conditions triggering calibration and just holds
Row step S103.
The condition of this triggering calibration can at least include: the difference between current temperature value and normal temperature value
Absolute value exceed setting threshold value.This difference can be absolute difference, it is also possible to be relative difference.
The e.g. corresponding temperature obtaining original background picture of this normal temperature value, triggers calibration to improve
Validity.
This setting threshold value can be arranged according to actual measurement, such as, cannot prepare ultrasonic fingerprint sensor to identify
Minimum temperature change (change of relative standard's temperature value) of finger print information carries out actual measurement and determines.
This normal temperature value can immobilize, it is also possible to along with the carrying out of calibration changes.For
The former, be suitable for the situation every time carrying out calibrating on the basis of original background picture.For the latter, example
As can be recorded and carry out, when triggering calibration every time, the current temperature value that current alignment is corresponding, and will note
The temperature value of record is as the normal temperature value triggered in the condition calibrated next time, and this kind of situation is suitable for
Situation about next time calibrating on the basis of the background picture obtained by current alignment.
Step S103, carries out the calibration of background picture, and performs step S104 upon completion of the calibration.
Here, existing calibration steps can be used to carry out the calibration of background picture.Carrying out Background
Can be with poll finger state in the calibration process of sheet, not having on ultrasonic fingerprint sensor to be detected
Collection and the calibration of background picture, this poll frequency for example, 5Hz is carried out in the case of finger.
Step S104, carries out the renewal of background picture according to calibration result, to ensure ultrasonic fingerprint
Sensor identification accuracy under current environmental temperature.
Can notify that after completing step S104 system is not detected by finger, and complete background picture
Renewal.
As can be seen here, the inventive method is that one in use triggers Background according to environment temperature
The dynamic calibration scheme of sheet calibration, it substantially has in the scheme producing manually triggering primary calibration on line relatively
There is more preferable thermal adaptability, and then ensure that the fingerprint recognition of electronic equipment is in varying environment temperature
Under validity.
Owing to the enforcement of dynamic calibration can increase energy consumption, therefore, in order to not affect the standby of electronic equipment
Time, can arrange calibration cycle and limit the enforcement of dynamic calibration, Fig. 2 is based on this kind of limit
A kind of flow chart of the embodiment of system.
According to Fig. 2, the method for the present invention comprises the steps:
Step S201, obtains the current temperature value of external environment.
Step S202, it is judged that whether current temperature value meets the condition triggering calibration, in this way, then holds
Row step S203, as no, then return to step S201 and proceeds the detection of environment temperature.
Step S203, it is judged that current time whether meet carry out background picture next time calibration time
Between requirement, in this way, perform step S204 the most again, as no, then continuing executing with step S203 is
The no judgement meeting time requirement.
This time requirement is for example: carry out time difference of adjacent twice calibration when at least should meet setting
Long, this duration e.g. 3 hours, so, on this step is also and judges that current time is carried out relatively
Whether the time difference of the calibration of background picture reaches to set duration.
Step S204, carries out the calibration of background picture, and performs step S205 upon completion of the calibration.
Step S205, carries out the renewal of background picture according to calibration result.
Present invention also offers a kind of dynamically updating device, Fig. 3 is that a kind of of this device implements structure
Frame principle figure.
According to Fig. 3, this device 300 include temperature acquisition module 301, calibration trigger module 302,
Picture calibration module 303 and picture more new module 304.
Said temperature acquisition module 301 is for obtaining the current temperature value of external environment.
Above-mentioned calibration trigger module 302 is used for judging whether described current temperature value meets and triggers calibration
Condition, in this way, then trigger calibration.
Above-mentioned picture calibration module 303 is used in the case of calibration trigger module 302 triggers calibration,
Carry out the calibration of background picture.
Above-mentioned picture more new module 304 for carrying out the renewal of background picture according to calibration result.
The condition of above-mentioned triggering calibration can be: the difference between current temperature value and normal temperature value
Absolute value exceedes setting threshold value.
Apparatus of the present invention 300 also can farther include condition more new module (not shown), and it is used
Current temperature value corresponding to current alignment is carried out as the mark triggered in the condition calibrated next time in record
Quasi-temperature value.
In order to not affect the stand-by time of electronic equipment, Fig. 4 shows the another kind of real of apparatus of the present invention
Execute the frame principle figure of structure.
According to Fig. 4, this device 400 obtains except the temperature including corresponding temperature acquisition module 301
Delivery block 401, the calibration trigger module 402 of corresponding calibration trigger module 301, corresponding picture calibrating die
The picture calibration module 403 of block 303 and corresponding picture update the picture more new module 404 of module 304
Outside, also including time judgment module 405, this time judgment module 405 is at calibration trigger mode
In the case of block 402 triggers calibration, first judge whether current time meets and carry out background picture next time
The time requirement of calibration, in this way, then make picture calibration module 303 carry out the calibration of background picture.
Present invention also offers a kind of electronic equipment, according on the one hand, this electronic equipment includes the present invention
Dynamic calibration apparatus 300 or dynamic calibration apparatus 400.
Fig. 5 is the frame principle figure of the enforcement structure of this electronic equipment according to another aspect of the present invention.
According to Fig. 5, this electronic equipment 500 includes memory 501 and processor 502, and this is deposited
Reservoir 501 is used for storing instruction, and this instruction is used for controlling processor 502 and carries out operating performing above-mentioned
Dynamic calibration method.
In addition, according to Fig. 5, this electronic equipment 500 also includes interface arrangement 503, defeated
Enter device 504, display device 505, communicator 506, loudspeaker 507, microphone 508, temperature
Degree sensor (not shown), ultrasonic fingerprint sensor (not shown) etc..Although
Figure 5 illustrates multiple device, but, electronic equipment of the present invention can only relate to part therein
Device, such as, processor 501, memory 502, temperature sensor, ultrasonic fingerprint sensor etc..
Said temperature sensor for output temperature signal to processor 502 so that processor 502
The current temperature value of external environment is obtained according to this temperature signal.
Above-mentioned communicator 506 such as can carry out there is wired or wireless communication.
Above-mentioned interface arrangement 503 such as includes earphone jack, USB interface etc..
Above-mentioned input unit 504 such as can include touch-screen, button etc..
Above-mentioned display device 505 e.g. LCDs, touch display screen etc..
Electronic equipment of the present invention e.g. mobile phone, panel computer etc..
The various embodiments described above primary focus describes and the difference of other embodiments, but art technology
Personnel are it should be understood that, the various embodiments described above can be used alone as required or be combined with each other makes
With.
Each embodiment in this specification all uses the mode gone forward one by one to describe, phase between each embodiment
Part cross-reference as homophase, each embodiment stress with other embodiments
Difference, but it will be clear for those skilled in the art that the various embodiments described above can be as required
It is used alone or is combined with each other.It addition, for device embodiment, owing to it is and side
Method embodiment is corresponding, so describing fairly simple, relevant part sees the correspondence of embodiment of the method
The explanation of part.System embodiment described above is only schematically, wherein as dividing
Module from part description can be or may not be physically separate.
The present invention can be device, method and/or computer program.Computer program can
To include computer-readable recording medium, containing for making processor realize each side of the present invention
The computer-readable program instructions in face.
Computer-readable recording medium can keep and store by instruction execution equipment use
The tangible device of instruction.Computer-readable recording medium such as may be-but not limited to-electricity and deposits
Storage equipment, magnetic storage apparatus, light storage device, electromagnetism storage device, semiconductor memory apparatus or
The combination of above-mentioned any appropriate.The more specifically example of computer-readable recording medium is (non exhaustive
List) including: portable computer diskette, hard disk, random access memory (RAM), read-only storage
Device (ROM), erasable type programmable read only memory (EPROM or flash memory), static random-access are deposited
Reservoir (SRAM), Portable compressed dish read-only storage (CD-ROM), digital versatile disc (DVD),
Memory stick, floppy disk, mechanical coding equipment, such as storage has punch card or the groove convex of instruction on it
Play structure and the combination of above-mentioned any appropriate.Computer-readable recording medium used herein above
It is not construed as instantaneous signal itself, the electromagnetic wave of such as radio wave or other Free propagations, logical
Cross electromagnetic wave (such as, by the light pulse of fiber optic cables) that waveguide or other transmission mediums propagate,
Or by the signal of telecommunication of wire transfer.
Computer-readable program instructions as described herein can be downloaded from computer-readable recording medium
To each calculating/processing equipment, or by network, such as internet, LAN, wide area network and/
Or wireless network downloads to outer computer or External memory equipment.Network can include copper transmission cable,
Optical Fiber Transmission, be wirelessly transferred, router, fire wall, switch, gateway computer and/or edge clothes
Business device.Adapter or network interface in each calculating/processing equipment receive computer from network
Readable program instructions, and forward this computer-readable program instructions, calculate for being stored in each/process
In computer-readable recording medium in equipment.
Can be assembly instruction, instruction set architecture for performing the computer program instructions of present invention operation
(ISA) instruction, machine instruction, machine-dependent instructions, microcode, firmware instructions, state arrange number
According to or the source code write with any combination of one or more programming languages or object code, institute
State programming language and include OO programming language such as Smalltalk, C++ etc., and conventional
Procedural programming languages such as " C " language or similar programming language.Computer-readable program refers to
Order can perform the most on the user computer, perform the most on the user computer, as one
Individual independent software kit performs, part part the most on the user computer performs the most on the remote computer or
Person performs completely on remote computer or server.In the situation relating to remote computer, remotely
By the network of any kind, computer can include that LAN (LAN) or wide area network (WAN) connect
To subscriber computer, or, it may be connected to outer computer (such as utilizes Internet service to provide
Business passes through Internet connection).In certain embodiments, by utilizing computer-readable program instructions
Status information come personalized customization electronic circuit, such as PLD, field programmable gate
Array (FPGA) or programmable logic array (PLA), this electronic circuit can perform computer-readable
Programmed instruction, thus realize various aspects of the invention.
Referring herein to method according to embodiments of the present invention, device (system) and computer program
Flow chart and/or block diagram describe various aspects of the invention.Should be appreciated that flow chart and/or frame
The combination of each square frame in each square frame of figure and flow chart and/or block diagram, can be by computer-readable
Programmed instruction realizes.
These computer-readable program instructions can be supplied to all-purpose computer, special-purpose computer or other
The processor of programmable data processing means, thus produce a kind of machine so that these instructions are logical
When crossing the processor execution of computer or other programmable data processing means, create flowchart
And/or the device of the function/action of regulation in the one or more square frames in block diagram.Can also be these
Computer-readable program instructions store in a computer-readable storage medium, these instruction make computer,
Programmable data processing means and/or other equipment work in a specific way, thus, storage has instruction
Computer-readable medium then includes a manufacture, and it includes one in flowchart and/or block diagram
Or the instruction of the various aspects of the function/action of regulation in multiple square frame.
Computer-readable program instructions can also be loaded into computer, other programmable data processes dress
Put or on miscellaneous equipment so that at computer, other programmable data processing means or miscellaneous equipment
Upper execution sequence of operations step, to produce computer implemented process so that computer,
The instruction flowchart performed in other programmable data processing means or miscellaneous equipment and/or block diagram
In one or more square frames in regulation function/action.
Flow chart and block diagram in accompanying drawing show the system of multiple embodiments according to the present invention, method
Architectural framework in the cards, function and operation with computer program.In this, flow process
Each square frame in figure or block diagram can represent a module, program segment or a part for instruction, described
A part for module, program segment or instruction comprises one or more logic function for realizing regulation
Executable instruction.At some as in the realization replaced, the function marked in square frame can also be with not
The order being same as being marked in accompanying drawing occurs.Such as, two continuous print square frames can essentially the most also
Performing, they can also perform sometimes in the opposite order capablely, and this is depending on involved function.
It is also noted that in each square frame in block diagram and/or flow chart and block diagram and/or flow chart
The combination of square frame, can come by the special hardware based system of the function or action that perform regulation
Realize, or can realize with the combination of specialized hardware with computer instruction.For art technology
It is well known that for personnel, realize by hardware mode, realized by software mode and pass through software
Realize being all of equal value with the mode of combination of hardware.
Being described above various embodiments of the present invention, described above is exemplary, and exhaustive
Property, and it is also not necessarily limited to disclosed each embodiment.At the model without departing from illustrated each embodiment
Enclose with spirit in the case of, many modifications and changes for those skilled in the art
Will be apparent from.The selection of term used herein, it is intended to explain the former of each embodiment best
Reason, actual application or the technological improvement to the technology in market, or make other of the art general
Logical technical staff is understood that each embodiment disclosed herein.The scope of the present invention is come by claims
Limit.
Claims (10)
1. the dynamic calibration method for ultrasonic fingerprint identification, it is characterised in that including:
Obtain the current temperature value of external environment；
If described current temperature value meets the condition triggering calibration, then:
Carry out the calibration of background picture；
The renewal of background picture is carried out according to calibration result.
Method the most according to claim 1, it is characterised in that the condition of described triggering calibration
For: the absolute value of the difference between described current temperature value and normal temperature value exceedes setting threshold value.
Method the most according to claim 2, it is characterised in that described method also includes:
Record carries out current temperature value corresponding to current alignment as triggering in the condition calibrated next time
Normal temperature value.
4. according to the method described in claim 1,2 or 3, it is characterised in that described method is also wrapped
Include:
If described current temperature value meets the condition triggering calibration, the most first judge that current time is the fullest
Foot carries out the time requirement of the calibration of background picture next time, in this way, then carries out the calibration of background picture.
5. the dynamic calibration apparatus for ultrasonic fingerprint identification, it is characterised in that including:
Temperature acquisition module, for obtaining the current temperature value of external environment；
Calibration trigger module, triggers, for judging whether described current temperature value meets, the condition calibrated,
In this way, then calibration is triggered:
Picture calibration module, in the case of triggering calibration at described calibration trigger module, carries on the back
The calibration of scape picture；And,
Picture more new module, for carrying out the renewal of background picture according to calibration result.
Device the most according to claim 5, it is characterised in that the condition of described triggering calibration
For: the absolute value of the difference between described current temperature value and normal temperature value exceedes setting threshold value.
Device the most according to claim 6, it is characterised in that described device also includes:
Condition more new module, record carries out current temperature value corresponding to current alignment as triggering next time
Normal temperature value in the condition of calibration.
8. the device stated according to claim 5,6 or 7, it is characterised in that described device also includes:
Time judgment module, in the case of triggering calibration at described calibration trigger module, first judges
Whether current time meets the time requirement carrying out the calibration of background picture next time, in this way, then makes institute
State picture calibration module and carry out the calibration of background picture.
9. an electronic equipment, it is characterised in that include according to any one of claim 5 to 8
Dynamic calibration apparatus.
10. an electronic equipment, including memory, processor and ultrasonic fingerprint sensor, it is special
Levying and be, described memory is used for storing instruction, and described instruction is used for controlling described processor and grasps
Make to perform dynamic calibration method according to any one of claim 1 to 4；Described electronics sets
Standby also include temperature sensor, described temperature sensor for output temperature signal to processor so that
Described processor obtains the current temperature value of external environment according to described temperature signal.
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| CN106650614A (en) * | 2016-11-07 | 2017-05-10 | 上海与德信息技术有限公司 | Dynamic calibration method and apparatus |
| CN107679464A (en) * | 2017-09-19 | 2018-02-09 | 北京小米移动软件有限公司 | The method and apparatus of fingerprint module calibration |
| CN108573188A (en) * | 2017-03-07 | 2018-09-25 | 宏碁股份有限公司 | The calibration method of fingerprint acquisition apparatus, electronic device and fingerprint sensing device |
| CN109241859A (en) * | 2018-08-13 | 2019-01-18 | Oppo广东移动通信有限公司 | Fingerprint identification method and Related product |
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| CN111126147A (en) * | 2019-11-22 | 2020-05-08 | 北京迈格威科技有限公司 | Image processing method, device and electronic system |
| WO2020224149A1 (en) * | 2019-05-08 | 2020-11-12 | 南昌欧菲生物识别技术有限公司 | Electronic device, fingerprint recognition method therefor, and apparatus thereof |
| CN112639805A (en) * | 2018-09-04 | 2021-04-09 | 三星电子株式会社 | Electronic device including fingerprint sensor in ultrasonic display and method of operating the same |
| WO2022057476A1 (en) * | 2020-09-15 | 2022-03-24 | 华为技术有限公司 | Method for generating calibration signal, electronic device, and computer storage medium |
| KR102668223B1 (en) * | 2018-09-04 | 2024-05-23 | 삼성전자주식회사 | Electrionic device including ultrasonic fingerprint in-display sensor and operating method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5831175A (en) * | 1996-06-12 | 1998-11-03 | Welch Allyn, Inc. | Method and apparatus for correcting temperature variations in ultrasonic flowmeters |
| CN102829419A (en) * | 2012-09-04 | 2012-12-19 | 浙江国之光电器科技有限公司 | LED (light-emitting diode) elevator emergency lamp |
| CN104266718A (en) * | 2014-09-24 | 2015-01-07 | 中山欧麦克仪器设备有限公司 | Automatically-calibrated ultrasonic liquid level measuring system |
| CN105078472A (en) * | 2015-08-24 | 2015-11-25 | 联想(北京)有限公司 | Physiological feature image acquisition device and method |
-
2016
- 2016-05-20 CN CN201610341740.0A patent/CN105893989A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5831175A (en) * | 1996-06-12 | 1998-11-03 | Welch Allyn, Inc. | Method and apparatus for correcting temperature variations in ultrasonic flowmeters |
| CN102829419A (en) * | 2012-09-04 | 2012-12-19 | 浙江国之光电器科技有限公司 | LED (light-emitting diode) elevator emergency lamp |
| CN104266718A (en) * | 2014-09-24 | 2015-01-07 | 中山欧麦克仪器设备有限公司 | Automatically-calibrated ultrasonic liquid level measuring system |
| CN105078472A (en) * | 2015-08-24 | 2015-11-25 | 联想(北京)有限公司 | Physiological feature image acquisition device and method |
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| CN106650614A (en) * | 2016-11-07 | 2017-05-10 | 上海与德信息技术有限公司 | Dynamic calibration method and apparatus |
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