CN107918768A - Optical finger print recognition methods, device and electronic equipment - Google Patents
Optical finger print recognition methods, device and electronic equipment Download PDFInfo
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- CN107918768A CN107918768A CN201711215306.9A CN201711215306A CN107918768A CN 107918768 A CN107918768 A CN 107918768A CN 201711215306 A CN201711215306 A CN 201711215306A CN 107918768 A CN107918768 A CN 107918768A
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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
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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
- G06V40/1341—Sensing with light passing through the finger
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Abstract
The application proposes a kind of optical finger print recognition methods, device and electronic equipment, and this method includes：The first intensity of illumination of current environment is detected, by the first intensity of illumination compared with default first threshold；Know that the first intensity of illumination is more than first threshold if comparing, the first intensity of illumination is calculated according to default first adjustment algorithm, obtain the second intensity of illumination for carrying out optical finger print identification；The preset reference intensity of light source in optical finger print module is adjusted to the second intensity of illumination and carries out optical finger print identification.Thereby, it is possible to for different illumination intensity environment, the intensity of light source in accommodation optical finger print module, ensure that the uniformity that fingerprint image is obtained under different illumination intensity environment, the accuracy of optical finger print identification is improved.
Description
Technical field
This application involves fingerprint identification technology field, more particularly to a kind of optical finger print recognition methods, device and electronics to set
It is standby.
Background technology
Optical finger print technology generally use terminal device screen is irradiated to fingerprint by light path, returns as light emitting host
Light imaging sensor under screen is returned to by screen again, terminal device is divided for image and the database returned
Analysis contrast, finally identifies fingerprint.
However, the successful application of optical finger print and the effect of light are closely related, under special strong light environment, especially sunlight
Under direct projection, optical finger print identification difficulty is larger.
The content of the invention
The application is intended to solve at least some of the technical problems in related technologies.
For this reason, the application proposes a kind of optical finger print recognition methods, device and electronic equipment, can solve under varying environment
When intensity of illumination changes, the fingerprint image inconsistency of acquisition, so that the problem of being impacted to fingerprint recognition.
The optical finger print recognition methods that the application first aspect embodiment proposes, including：Detect the first light of current environment
According to intensity, by first intensity of illumination compared with default first threshold；Know first intensity of illumination if comparing
More than the first threshold, then first intensity of illumination is calculated according to default first adjustment algorithm, obtain and carry out
Second intensity of illumination of optical finger print identification；The preset reference intensity of light source in optical finger print module is adjusted to second light
Optical finger print identification is carried out according to intensity.
The optical finger print recognition methods that the application first aspect embodiment proposes, by the first illumination for detecting current environment
Intensity, and by the first intensity of illumination compared with default first threshold, know that the first intensity of illumination is more than first comparing
The first intensity of illumination calculate obtaining according to default first adjustment algorithm during threshold value and carries out the second of optical finger print identification
Intensity of illumination, so that the preset reference intensity of light source in optical finger print module is adjusted to the second intensity of illumination carries out optical finger print
Identification.Thereby, it is possible to for different illumination intensity environment, the intensity of light source in accommodation optical finger print module, ensure that not
With the uniformity that fingerprint image is obtained under illumination strength environment, the accuracy that optical finger print identifies is improved.
The optical fingerprint identification device that the application second aspect embodiment proposes, including：Comparison module is detected, for detecting
First intensity of illumination of current environment, by first intensity of illumination compared with default first threshold；First calculating obtains
Modulus block, if knowing that first intensity of illumination is more than the first threshold for comparing, is calculated according to the default first adjustment
Method calculates first intensity of illumination, obtains the second intensity of illumination for carrying out optical finger print identification；First adjustment module,
Optical finger print identification is carried out for the preset reference intensity of light source in optical finger print module to be adjusted to second intensity of illumination.
The optical fingerprint identification device that the application second aspect embodiment proposes, by the first illumination for detecting current environment
Intensity, and by the first intensity of illumination compared with default first threshold, know that the first intensity of illumination is more than first comparing
The first intensity of illumination calculate obtaining according to default first adjustment algorithm during threshold value and carries out the second of optical finger print identification
Intensity of illumination, so that the preset reference intensity of light source in optical finger print module is adjusted to the second intensity of illumination carries out optical finger print
Identification.Thereby, it is possible to for different illumination intensity environment, the intensity of light source in accommodation optical finger print module, ensure that not
With the uniformity that fingerprint image is obtained under illumination strength environment, the accuracy that optical finger print identifies is improved.
The application third aspect embodiment proposes a kind of non-transitorycomputer readable storage medium, when the storage is situated between
When instruction in matter is performed by the processor of terminal so that terminal is able to carry out a kind of optical finger print recognition methods, the method
Including：The first intensity of illumination of current environment is detected, by first intensity of illumination compared with default first threshold；If
Compare and know that first intensity of illumination is more than first threshold, then it is strong to first illumination according to default first adjustment algorithm
Degree is calculated, and obtains the second intensity of illumination for carrying out optical finger print identification；By the preset reference of light source in optical finger print module
Intensity is adjusted to second intensity of illumination and carries out optical finger print identification.
The non-transitorycomputer readable storage medium that the application third aspect embodiment proposes, by detecting current environment
The first intensity of illumination, and by the first intensity of illumination compared with default first threshold, know that the first illumination is strong comparing
The first intensity of illumination calculate obtaining according to default first adjustment algorithm when degree is more than first threshold and carries out optical finger print
Identification the second intensity of illumination so that by the preset reference intensity of light source in optical finger print module be adjusted to the second intensity of illumination into
Row optical finger print identifies.Thereby, it is possible to for different illumination intensity environment, light source is strong in accommodation optical finger print module
Degree, ensure that the uniformity that fingerprint image is obtained under different illumination intensity environment, improve the accuracy of optical finger print identification.
The application fourth aspect also proposes a kind of electronic equipment, which includes memory and processor, described to deposit
Computer-readable instruction is stored in reservoir, when described instruction is performed by the processor so that the processor performs one kind
Optical finger print recognition methods, the described method includes：Detect current environment the first intensity of illumination, will first intensity of illumination and
Default first threshold is compared；Know that first intensity of illumination is more than the first threshold if comparing, according to default
The first adjustment algorithm first intensity of illumination is calculated, obtain carry out optical finger print identification the second intensity of illumination；
The preset reference intensity of light source in optical finger print module is adjusted to second intensity of illumination and carries out optical finger print identification.
The electronic equipment that the application fourth aspect embodiment proposes, detects the first intensity of illumination of current environment, and by the
One intensity of illumination compared with default first threshold, compare know that the first intensity of illumination is more than first threshold when according to pre-
If the first adjustment algorithm to the first intensity of illumination carry out calculate obtain carry out optical finger print identification the second intensity of illumination so that
The preset reference intensity of light source in optical finger print module is adjusted to the second intensity of illumination and carries out optical finger print identification.Thus, energy
Enough it is directed to different illumination intensity environment, the intensity of light source in accommodation optical finger print module, ensure that different illumination intensity ring
The uniformity of fingerprint image is obtained under border, improves the accuracy of optical finger print identification.
The aspect and advantage that the application adds will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the application.
Brief description of the drawings
The above-mentioned and/or additional aspect of the application and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the flow diagram for the optical finger print recognition methods that one embodiment of the application proposes；
Fig. 2 is the exemplary plot for the optical finger print identification that one embodiment of the application proposes；
Fig. 3 is the flow diagram for the optical finger print recognition methods that another embodiment of the application proposes；
Fig. 4 is the structure diagram for the optical fingerprint identification device that one embodiment of the application proposes；
Fig. 5 is the structure diagram for the optical fingerprint identification device that another embodiment of the application proposes；
Fig. 6 is the structure diagram for the optical fingerprint identification device that the another embodiment of the application proposes.
Embodiment
Embodiments herein is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or has the function of same or like element.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the application, and it is not intended that limitation to the application.On the contrary, this
The embodiment of application includes falling into all changes in the range of the spirit and intension of attached claims, modification and equivalent
Thing.
Fig. 1 is the flow diagram for the optical finger print recognition methods that one embodiment of the application proposes.
Embodiments herein is applied to be configured with the electronic equipment of optical finger print module.
Can be, for example, the center of electronic equipment on hardware it should be noted that the executive agent of the embodiment of the present application
Processor (Central Processing Unit, CPU), can be, for example, that MMI automations in electronic equipment are surveyed on software
Service routine is tried, this is not restricted.
Specifically, referring to Fig. 2, optical finger print is identified by light source in fingerprint module as light emitting host, passes through light
Road is irradiated to fingerprint, and the light of return returns to fingerprint module by screen again, and fingerprint module is responsible for gathering fingerprint image, with number
Analysis contrast is carried out according to storehouse, finally identifies fingerprint.
Wherein, start to scan finger, the general dark more reflection light of Regional Representative when finger is placed on the screen
(the ridge line of finger), the less reflection light of brighter Regional Representative (trough of finger).Fingerprint image and data will gathered
Storehouse is carried out before analysis contrast, it is to be ensured that has got clearly fingerprint image.
However, under strong light environment, especially under sun light direct beam, the acquisition influence on fingerprint image is very big, so that
Cause optical finger print identification difficulty larger.Therefore, the optical finger print recognition methods of the application, by for different illumination intensity ring
Border, adjusts the intensity of light source in optical finger print module and, to ensure the uniformity of acquisition fingerprint image, improves the accuracy of fingerprint recognition.
It is specific as follows：
Referring to Fig. 1, this method includes：
Step 101, the first intensity of illumination of current environment is detected, the first intensity of illumination and default first threshold are carried out
Compare.
Wherein it is possible to by the equipment detection terminal such as optical sensor, optical detection device equipment under the present circumstances first
Intensity of illumination.It should be noted that environment illumination intensity is stronger, the noise of the fingerprint image of acquisition is more, so as to refer to optics
Line identification influence it is bigger, especially infrared light it is bigger in the case of, optical finger print recognition effect is worse.
And then, it is necessary to judge this intensity after the first intensity of illumination of current environment is obtained, i.e., by with it is pre-
If the mode that compares of first threshold judged whether the intensity of illumination of current environment has influenced optical finger print identification
.Wherein, first threshold can need to make choice setting according to practical application.
Step 102, know that the first intensity of illumination is more than default first threshold if comparing, according to the default first adjustment
Algorithm calculates the first intensity of illumination, obtains the second intensity of illumination for carrying out optical finger print identification.
Step 103, the preset reference intensity of light source in optical finger print module is adjusted to the second intensity of illumination and carries out optics
Fingerprint recognition.
Specifically, compare know that the first intensity of illumination is more than default first threshold when, that is, determine environment illumination it is strong
Degree influences recognition effect, it is necessary to be adjusted to the intensity of light source in optical finger print module, to ensure the uniformity of fingerprint image,
Improve identification accuracy.
Wherein, the first adjustment algorithm can need to make choice setting according to practical application.
As a kind of example, the preset reference intensity of light source is 600nit in optical finger print module, according to default first
It is 550nit that adjustment algorithm carries out calculating the second intensity of illumination for obtaining progress optical finger print identification to the first intensity of illumination, so that
Need preset reference intensity 600nit being adjusted to 550nit progress optical finger print identifications.
Wherein, preset reference intensity represents it is the suitable strength for carrying out optical finger print identification, can use a variety of modes
Obtained, as a kind of mode in the cards, according to the default initial strength of light source under the intensity of illumination of varying environment
The optical fingerprint image of collection, the preset reference intensity of light source is set according to the picture quality of optical fingerprint image.I.e. by not
With light source such as OLED display screen or, the arbitrary source mould one or more in the block in optical finger print module, not
Refer to opponent under the intensity of illumination of environment and be acquired, so that multiple and different fingerprint images is obtained, and then by fingerprint image
As carrying out processing analysis, preset reference of the default initial strength of the corresponding light source of optimal fingerprint recognition image as light source is selected
Intensity.
In conclusion the optical finger print recognition methods of the embodiment of the present application, strong by the first illumination for detecting current environment
Degree, and by the first intensity of illumination compared with default first threshold, know that the first intensity of illumination is more than the first threshold comparing
The first intensity of illumination calculate according to default first adjustment algorithm during value and obtains the second light for carrying out optical finger print identification
According to intensity, so that the preset reference intensity of light source in optical finger print module is adjusted to the second intensity of illumination carries out optical finger print knowledge
Not.Thereby, it is possible to for different illumination intensity environment, the intensity of light source in accommodation optical finger print module, ensure that difference
The uniformity of fingerprint image is obtained under intensity of illumination environment, improves the accuracy of optical finger print identification.
Based on above-described embodiment, it is to be understood that it is mainly in optical finger print module to be influenced for optical finger print identification
Light source, in the case of environment illumination intensity is far-reaching, it is relatively a little bigger can be directed to light source progress in optical finger print module
Adjustment, in the case where environment illumination intensity influences relatively not being very big, can be directed to light source in optical finger print module carry out it is micro-
Adjustment, is described in detail as follows with reference to Fig. 3：
Fig. 3 is the flow diagram for the optical finger print recognition methods that another embodiment of the application proposes.As shown in figure 3, should
Optical finger print recognition methods includes：
Step 201, the first intensity of illumination of current environment is detected.
Step 202, judge whether the first intensity of illumination is more than default first threshold.
Step 203, if the first intensity of illumination is more than first threshold, according to default first adjustment algorithm to the first light
Calculated according to intensity, obtain the second intensity of illumination for carrying out optical finger print identification, by optical finger print module light source it is default
Referenced strength is adjusted to the second intensity of illumination and carries out optical finger print identification.
Step 204, if the first intensity of illumination is less than or equal to first threshold, it is default to judge whether the first intensity of illumination is more than
Second threshold, wherein, second threshold is less than first threshold.
Step 205, if the first intensity of illumination is more than default second threshold, according to default second adjustment algorithm pair
First intensity of illumination is calculated, and the 3rd intensity of illumination for carrying out optical finger print identification is obtained, by light source in optical finger print module
Preset reference intensity be adjusted to the 3rd intensity of illumination carry out optical finger print identification.
Step 206, if the first intensity of illumination is less than or equal to second threshold, according in optical finger print module light source it is pre-
If referenced strength carries out optical finger print identification.
Wherein, second threshold is less than first threshold, i.e., when the first intensity of illumination is more than first threshold, represents current environment
Intensity of illumination it is very big, seriously affect optical finger print identification, therefore, it is necessary to by default first adjustment algorithm to the first light
Carry out that the second intensity of illumination is calculated according to intensity, and the preset reference intensity of light source in optical finger print module is adjusted to second
Intensity of illumination carries out optical finger print identification.
Wherein, when the first intensity of illumination is less than or equal to first threshold, the intensity of illumination of possible current environment be not it is very big,
Optical finger print identification is influenced a little, or it is basic do not influence, therefore further by by the first intensity of illumination with it is default
Second threshold is compared, when the first intensity of illumination is more than default second threshold according to default second adjustment algorithm to
One intensity of illumination, which calculate, obtains the 3rd intensity of illumination, and the preset reference intensity of light source in optical finger print module is adjusted to the
Three intensities of illumination carry out optical finger print identification.
As a kind of example, the preset reference intensity of light source is 600nit in optical finger print module, according to default second
It is 580nit that adjustment algorithm carries out calculating the 3rd intensity of illumination for obtaining progress optical finger print identification to the first intensity of illumination, so that
Need preset reference intensity 600nit being adjusted to 580nit progress optical finger print identifications.
That is, in the case where the intensity of illumination of current environment influences not being very big, can carry out faint adjustment with
Ensure the uniformity of acquisition fingerprint image, further improve the accuracy of fingerprint recognition.
In addition, when the first intensity of illumination is less than or equal to second threshold, represent the intensity of illumination of current environment to optical finger print
Identification does not influence, and directly can carry out optical finger print identification according to the preset reference intensity of light source in optical finger print module.
In conclusion the optical finger print recognition methods of the embodiment of the present application, strong by the first illumination for detecting current environment
Degree, by the first intensity of illumination compared with default first threshold, if the first intensity of illumination is more than first threshold, basis
Default first adjustment algorithm calculates the first intensity of illumination, obtains the second intensity of illumination for carrying out optical finger print identification,
The preset reference intensity of light source in optical finger print module is adjusted to the second intensity of illumination and carries out optical finger print identification, if first
Intensity of illumination is less than or equal to first threshold, by the first intensity of illumination compared with default second threshold, if the first illumination
Intensity is more than default second threshold, then the first intensity of illumination is calculated according to default second adjustment algorithm, obtain into
3rd intensity of illumination of row optical finger print identification, the 3rd illumination is adjusted to by the preset reference intensity of light source in optical finger print module
Intensity carries out optical finger print identification, if the first intensity of illumination is less than or equal to second threshold, according to light in optical finger print module
The preset reference intensity in source carries out optical finger print identification.Thereby, it is possible to for different illumination intensity environment, accommodation optics
The intensity of light source in fingerprint module, ensure that the uniformity that fingerprint image is obtained under different illumination intensity environment, improves optics and refer to
The accuracy of line identification.Meanwhile by setting second threshold to determine whether that current environment intensity carries out accommodation, into one
Step improves the accuracy of optical finger print identification.
Fig. 4 is the structure diagram for the optical fingerprint identification device that one embodiment of the application proposes.
Referring to Fig. 4, which includes：Detect comparison module 401, first calculate acquisition module 402 with
And first adjustment module 403, wherein,
Detect comparison module 401, for detecting the first intensity of illumination of current environment, by the first intensity of illumination with it is default
First threshold is compared.
First calculates acquisition module 402, if knowing that the first intensity of illumination is more than first threshold for comparing, according to default
The first adjustment algorithm the first intensity of illumination is calculated, obtain carry out optical finger print identification the second intensity of illumination.
First adjustment module 403, for the preset reference intensity of light source in optical finger print module to be adjusted to the second illumination
Intensity carries out optical finger print identification.
Alternatively, in some embodiments, referring to Fig. 5, further include：
Second calculates acquisition module 404, if knowing that the first intensity of illumination is less than or equal to first threshold for comparing, and is more than
Default second threshold, wherein, second threshold is less than first threshold, then strong to the first illumination according to default second adjustment algorithm
Degree is calculated, and obtains the 3rd intensity of illumination for carrying out optical finger print identification.
First adjustment module 405, for the preset reference intensity of light source in optical finger print module to be adjusted to the 3rd illumination
Intensity carries out optical finger print identification.
Identification module 406, if knowing that the first intensity of illumination is less than or equal to second threshold for comparing, according to optical finger print
The preset reference intensity of light source carries out optical finger print identification in module.
Alternatively, in some embodiments, referring to Fig. 6, further include：
Acquisition module 407, for the light gathered according to the default initial strength of light source under the intensity of illumination of varying environment
Learn fingerprint image.
Setup module 408, for setting the preset reference intensity of light source according to the picture quality of optical fingerprint image.
Alternatively, in some embodiments, light source includes：OLED display screen or, the independence in the optical finger print module
Light source module.
It should be noted that the explanation in earlier figures 1- Fig. 3 embodiments to optical finger print recognition methods embodiment
Suitable for the optical fingerprint identification device of the embodiment, its realization principle is similar, and details are not described herein again.
In conclusion the optical fingerprint identification device of the embodiment of the present application, strong by the first illumination for detecting current environment
Degree, and by the first intensity of illumination compared with default first threshold, know that the first intensity of illumination is more than the first threshold comparing
The first intensity of illumination calculate according to default first adjustment algorithm during value and obtains the second light for carrying out optical finger print identification
According to intensity, so that the preset reference intensity of light source in optical finger print module is adjusted to the second intensity of illumination carries out optical finger print knowledge
Not.Thereby, it is possible to for different illumination intensity environment, the intensity of light source in accommodation optical finger print module, ensure that difference
The uniformity of fingerprint image is obtained under intensity of illumination environment, improves the accuracy of optical finger print identification.
In order to realize above-described embodiment, the application also proposes a kind of electronic equipment, including memory and processor, memory
In store computer-readable instruction, when instruction is executed by processor so that processor performs optical finger print identification described above
Method, method include：The first intensity of illumination of current environment is detected, the first intensity of illumination and default first threshold are compared
Compared with；Know that the first intensity of illumination is more than first threshold if comparing, according to default first adjustment algorithm to the first intensity of illumination
Calculated, obtain the second intensity of illumination for carrying out optical finger print identification；The preset reference of light source in optical finger print module is strong
Degree is adjusted to the second intensity of illumination and carries out optical finger print identification.
In conclusion the electronic equipment of the embodiment of the present application, by detecting the first intensity of illumination of current environment, and by
One intensity of illumination compared with default first threshold, compare know that the first intensity of illumination is more than first threshold when according to pre-
If the first adjustment algorithm to the first intensity of illumination carry out calculate obtain carry out optical finger print identification the second intensity of illumination so that
The preset reference intensity of light source in optical finger print module is adjusted to the second intensity of illumination and carries out optical finger print identification.Thus, energy
Enough it is directed to different illumination intensity environment, the intensity of light source in accommodation optical finger print module, ensure that different illumination intensity ring
The uniformity of fingerprint image is obtained under border, improves the accuracy of optical finger print identification.
In order to realize above-described embodiment, the application also proposes a kind of non-transitorycomputer readable storage medium, works as storage
When instruction in medium is performed by the processor of terminal so that terminal is able to carry out a kind of optical finger print recognition methods, method bag
Include：The first intensity of illumination of current environment is detected, by the first intensity of illumination compared with default first threshold；Obtained if comparing
Know that the first intensity of illumination is more than first threshold, then the first intensity of illumination is calculated according to default first adjustment algorithm, obtained
Take the second intensity of illumination for carrying out optical finger print identification；The preset reference intensity of light source in optical finger print module is adjusted to second
Intensity of illumination carries out optical finger print identification.
In conclusion the non-transitorycomputer readable storage medium of the embodiment of the present application, by detecting current environment
First intensity of illumination, and by the first intensity of illumination compared with default first threshold, know the first intensity of illumination comparing
The first intensity of illumination calculate obtaining according to default first adjustment algorithm during more than first threshold and carries out optical finger print knowledge
Other second intensity of illumination, carries out so that the preset reference intensity of light source in optical finger print module is adjusted to the second intensity of illumination
Optical finger print identifies.Thereby, it is possible to for different illumination intensity environment, the intensity of light source in accommodation optical finger print module,
It ensure that the uniformity that fingerprint image is obtained under different illumination intensity environment, improve the accuracy of optical finger print identification.
In order to realize above-described embodiment, the application also proposes a kind of computer program product, when in computer program product
Instruction when being executed by processor, perform a kind of optical finger print recognition methods, method includes：Detect the first illumination of current environment
Intensity, by the first intensity of illumination compared with default first threshold；Know that the first intensity of illumination is more than the first threshold if comparing
Value, then calculate the first intensity of illumination according to default first adjustment algorithm, obtains and carries out the second of optical finger print identification
Intensity of illumination；The preset reference intensity of light source in optical finger print module is adjusted to the second intensity of illumination and carries out optical finger print knowledge
Not.
In conclusion the computer program product of the embodiment of the present application, by detecting the first intensity of illumination of current environment,
And by the first intensity of illumination compared with default first threshold, compare know that the first intensity of illumination is more than first threshold when
The second illumination for the first intensity of illumination calculate acquisition progress optical finger print identification according to default first adjustment algorithm is strong
Degree, so that the preset reference intensity of light source in optical finger print module is adjusted to the second intensity of illumination carries out optical finger print identification.
Thereby, it is possible to for different illumination intensity environment, the intensity of light source in accommodation optical finger print module, ensure that different illumination
The uniformity of fingerprint image is obtained under strength environment, improves the accuracy of optical finger print identification.
It should be noted that in the description of the present application, term " first ", " second " etc. are only used for description purpose, without
It is understood that to indicate or implying relative importance.In addition, in the description of the present application, unless otherwise indicated, the implication of " multiple "
It is two or more.
Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include
Module, fragment or the portion of the code of the executable instruction of one or more the step of being used for realization specific logical function or process
Point, and the scope of the preferred embodiment of the application includes other realization, wherein can not press shown or discuss suitable
Sequence, including according to involved function by it is basic at the same time in the way of or in the opposite order, carry out perform function, this should be by the application
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each several part of the application can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, have suitable combinational logic gate circuit application-specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method carries
Suddenly it is that relevant hardware can be instructed to complete by program, the program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In addition, each functional unit in each embodiment of the application can be integrated in a processing module, can also
That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized in the form of software function module and as independent production marketing or in use, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the application.In the present specification, schematic expression of the above terms is not
Necessarily refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiments or example in combine in an appropriate manner.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to the limitation to the application is interpreted as, those of ordinary skill in the art within the scope of application can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of optical finger print recognition methods, it is characterised in that comprise the following steps：
The first intensity of illumination of current environment is detected, by first intensity of illumination compared with default first threshold；
Know that first intensity of illumination is more than the first threshold if comparing, according to default first adjustment algorithm to described
First intensity of illumination is calculated, and obtains the second intensity of illumination for carrying out optical finger print identification；
The preset reference intensity of light source in optical finger print module is adjusted to second intensity of illumination and carries out optical finger print identification.
2. the method as described in claim 1, it is characterised in that further include：
Know that first intensity of illumination is less than or equal to the first threshold if comparing, and be more than default second threshold, wherein,
The second threshold is less than the first threshold, then first intensity of illumination is counted according to default second adjustment algorithm
Calculate, obtain the 3rd intensity of illumination for carrying out optical finger print identification；
The preset reference intensity of light source in the optical finger print module is adjusted to the 3rd intensity of illumination and carries out optical finger print
Identification.
3. method as claimed in claim 2, it is characterised in that further include：
Know that first intensity of illumination is less than or equal to the second threshold if comparing, according to light in the optical finger print module
The preset reference intensity in source carries out optical finger print identification.
4. the method as described in claim 1, it is characterised in that further include：
The optical fingerprint image gathered according to the default initial strength of the light source under the intensity of illumination of varying environment；
The preset reference intensity of the light source is set according to the picture quality of the optical fingerprint image.
5. method as claimed in claim 4, it is characterised in that the light source includes：
OLED display screen or, the arbitrary source module in the optical finger print module.
A kind of 6. optical fingerprint identification device, it is characterised in that including：
Comparison module is detected, will first intensity of illumination and default for detecting the first intensity of illumination of current environment
One threshold value is compared；
First calculates acquisition module, if knowing that first intensity of illumination is more than the first threshold for comparing, according to pre-
If the first adjustment algorithm first intensity of illumination is calculated, obtain carry out optical finger print identification the second illumination it is strong
Degree；
First adjustment module, for the preset reference intensity of light source in optical finger print module to be adjusted to second intensity of illumination
Carry out optical finger print identification.
7. device as claimed in claim 6, it is characterised in that further include：
Second calculates acquisition module, if know that first intensity of illumination is less than or equal to the first threshold for comparing, and greatly
In default second threshold, wherein, the second threshold is less than the first threshold, then according to default second adjustment algorithm pair
First intensity of illumination is calculated, and obtains the 3rd intensity of illumination for carrying out optical finger print identification；
First adjustment module, for the preset reference intensity of light source in the optical finger print module to be adjusted to the 3rd illumination
Intensity carries out optical finger print identification.
8. the method for claim 7, it is characterised in that further include：
Identification module, if knowing that first intensity of illumination is less than or equal to the second threshold for comparing, according to the light
The preset reference intensity for learning light source in fingerprint module carries out optical finger print identification.
9. a kind of non-transitorycomputer readable storage medium, is stored thereon with computer program, it is characterised in that the program quilt
The optical finger print recognition methods as any one of claim 1-5 is realized when processor performs.
10. a kind of electronic equipment, including memory and processor, computer-readable instruction is stored in the memory, it is described
When instruction is performed by the processor so that the processor performs the optical finger print as any one of claim 1 to 5
Recognition methods.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109359642A (en) * | 2018-09-11 | 2019-02-19 | 友达光电股份有限公司 | Image updating method and optical sensing device thereof |
| CN109409310A (en) * | 2018-11-05 | 2019-03-01 | Oppo（重庆）智能科技有限公司 | Display screen component, electronic equipment and fingerprint identification method |
| CN110084170A (en) * | 2019-04-22 | 2019-08-02 | Oppo广东移动通信有限公司 | Image processing method and relevant apparatus |
| CN110210353A (en) * | 2019-05-23 | 2019-09-06 | 上海思立微电子科技有限公司 | Optical fingerprint identification device, electronic equipment, light compensation method and storage medium |
| CN110534031A (en) * | 2019-08-29 | 2019-12-03 | 上海天马微电子有限公司 | Display device and fingerprint identification method |
| CN110647862A (en) * | 2018-10-08 | 2020-01-03 | 深圳市汇顶科技股份有限公司 | Fingerprint detection device and method and electronic equipment |
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| WO2024164790A1 (en) * | 2023-02-09 | 2024-08-15 | 深圳市合元科技有限公司 | Aerosol generation apparatus and control method therefor |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003242487A (en) * | 2002-02-15 | 2003-08-29 | Canon Inc | Image recognizing device |
| CN101131732A (en) * | 2006-08-24 | 2008-02-27 | 三美电机株式会社 | Fingerprint detection apparatus |
| CN101650921A (en) * | 2009-09-17 | 2010-02-17 | 青岛海信电器股份有限公司 | Method and device of controlling dynamic backlight |
| CN104683702A (en) * | 2015-03-25 | 2015-06-03 | 广东欧珀移动通信有限公司 | Method and device for supplementing light during photographing as well as mobile terminal |
| CN104809975A (en) * | 2014-12-23 | 2015-07-29 | 苹果公司 | Ambient light adaptive display device with paper-similar presentation |
| CN105513019A (en) * | 2015-11-27 | 2016-04-20 | 西安电子科技大学 | Method and apparatus for improving image quality |
| CN106203365A (en) * | 2016-07-14 | 2016-12-07 | 浙江赢视科技有限公司 | The fingerprint imaging method that gain-adjusted processes |
| CN107145886A (en) * | 2017-05-03 | 2017-09-08 | 广东欧珀移动通信有限公司 | Optical ftngetpnnt acquisidon method and Related product |
| CN107220592A (en) * | 2017-05-03 | 2017-09-29 | 广东欧珀移动通信有限公司 | A kind of optical ftngetpnnt acquisidon method and Related product |
-
2017
- 2017-11-28 CN CN201711215306.9A patent/CN107918768B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003242487A (en) * | 2002-02-15 | 2003-08-29 | Canon Inc | Image recognizing device |
| CN101131732A (en) * | 2006-08-24 | 2008-02-27 | 三美电机株式会社 | Fingerprint detection apparatus |
| CN101650921A (en) * | 2009-09-17 | 2010-02-17 | 青岛海信电器股份有限公司 | Method and device of controlling dynamic backlight |
| CN104809975A (en) * | 2014-12-23 | 2015-07-29 | 苹果公司 | Ambient light adaptive display device with paper-similar presentation |
| CN104683702A (en) * | 2015-03-25 | 2015-06-03 | 广东欧珀移动通信有限公司 | Method and device for supplementing light during photographing as well as mobile terminal |
| CN105513019A (en) * | 2015-11-27 | 2016-04-20 | 西安电子科技大学 | Method and apparatus for improving image quality |
| CN106203365A (en) * | 2016-07-14 | 2016-12-07 | 浙江赢视科技有限公司 | The fingerprint imaging method that gain-adjusted processes |
| CN107145886A (en) * | 2017-05-03 | 2017-09-08 | 广东欧珀移动通信有限公司 | Optical ftngetpnnt acquisidon method and Related product |
| CN107220592A (en) * | 2017-05-03 | 2017-09-29 | 广东欧珀移动通信有限公司 | A kind of optical ftngetpnnt acquisidon method and Related product |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109359642A (en) * | 2018-09-11 | 2019-02-19 | 友达光电股份有限公司 | Image updating method and optical sensing device thereof |
| CN109359642B (en) * | 2018-09-11 | 2020-12-08 | 友达光电股份有限公司 | Image updating method and optical sensing device thereof |
| US10776599B2 (en) | 2018-10-08 | 2020-09-15 | Shenzhen GOODIX Technology Co., Ltd. | Fingerprint detection device and method and electronic device |
| CN110647862A (en) * | 2018-10-08 | 2020-01-03 | 深圳市汇顶科技股份有限公司 | Fingerprint detection device and method and electronic equipment |
| US11062112B2 (en) | 2018-10-08 | 2021-07-13 | Shenzhen GOODIX Technology Co., Ltd. | Fingerprint detection device and method and electronic device |
| CN110647862B (en) * | 2018-10-08 | 2020-08-25 | 深圳市汇顶科技股份有限公司 | Fingerprint detection device and method and electronic equipment |
| CN109409310A (en) * | 2018-11-05 | 2019-03-01 | Oppo（重庆）智能科技有限公司 | Display screen component, electronic equipment and fingerprint identification method |
| CN110084170A (en) * | 2019-04-22 | 2019-08-02 | Oppo广东移动通信有限公司 | Image processing method and relevant apparatus |
| CN110210353A (en) * | 2019-05-23 | 2019-09-06 | 上海思立微电子科技有限公司 | Optical fingerprint identification device, electronic equipment, light compensation method and storage medium |
| CN110534031A (en) * | 2019-08-29 | 2019-12-03 | 上海天马微电子有限公司 | Display device and fingerprint identification method |
| CN110534031B (en) * | 2019-08-29 | 2021-12-28 | 上海天马微电子有限公司 | Display device and fingerprint identification method |
| US11521419B2 (en) | 2019-08-29 | 2022-12-06 | Shanghai Tianma Micro-electronics Co., Ltd. | Display device and fingerprint recognition method |
| CN110659609A (en) * | 2019-09-25 | 2020-01-07 | Oppo（重庆）智能科技有限公司 | Fingerprint matching method and device, electronic equipment and medium |
| CN110796070A (en) * | 2019-10-28 | 2020-02-14 | Oppo广东移动通信有限公司 | Display screen assembly and electronic equipment for identifying fingerprints under screen |
| CN112800808A (en) * | 2019-11-13 | 2021-05-14 | 华为终端有限公司 | Fingerprint identification method and electronic equipment |
| WO2021093721A1 (en) * | 2019-11-13 | 2021-05-20 | 华为技术有限公司 | Fingerprint recognition method and electronic device |
| CN114295554A (en) * | 2021-12-31 | 2022-04-08 | 中元汇吉生物技术股份有限公司 | Light intensity detection method, device, equipment and storage medium |
| CN114295554B (en) * | 2021-12-31 | 2024-02-23 | 中元汇吉生物技术股份有限公司 | Light intensity detection method, device, equipment and storage medium |
| WO2024164790A1 (en) * | 2023-02-09 | 2024-08-15 | 深圳市合元科技有限公司 | Aerosol generation apparatus and control method therefor |
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