CN110298313B - Ultrasonic fingerprint identification method and device, electronic equipment and storage medium - Google Patents
Ultrasonic fingerprint identification method and device, electronic equipment and storage medium Download PDFInfo
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- CN110298313B CN110298313B CN201910578782.XA CN201910578782A CN110298313B CN 110298313 B CN110298313 B CN 110298313B CN 201910578782 A CN201910578782 A CN 201910578782A CN 110298313 B CN110298313 B CN 110298313B
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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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- 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
- G06V40/1365—Matching; Classification
Abstract
The embodiment of the application provides an ultrasonic fingerprint identification method, an ultrasonic fingerprint identification device, electronic equipment and a storage medium, wherein the method is applied to the electronic equipment, the electronic equipment comprises a touch display screen and a plurality of ultrasonic fingerprint identification modules, and the method comprises the following steps: when a first fingerprint pressing operation and a second fingerprint pressing operation aiming at the touch display screen are detected, acquiring a first area of the touch display screen corresponding to the first fingerprint pressing operation, and acquiring a second area of the touch display screen corresponding to the second fingerprint pressing operation; determining M ultrasonic fingerprint identification modules corresponding to the first area, and determining N ultrasonic fingerprint identification modules corresponding to the second area, wherein M, N are positive integers; awakening M ultrasonic fingerprint identification modules corresponding to the first area to perform ultrasonic fingerprint identification, and awakening N ultrasonic fingerprint identification modules corresponding to the second area to perform ultrasonic fingerprint identification. The embodiment of the application can improve the accuracy of ultrasonic fingerprint identification.
Description
Technical Field
The present application relates to the field of identification technologies, and in particular, to an ultrasonic fingerprint identification method and apparatus, an electronic device, and a storage medium.
Background
Currently, fingerprint recognition of electronic devices generally includes capacitive fingerprint recognition, optical fingerprint recognition, and ultrasonic fingerprint recognition. Ultrasonic fingerprint identification is widely used due to its advantages of strong penetrating power and capability of identifying dirty fingers and wet fingers. When a user uses ultrasonic fingerprint identification, if a finger presses the edge position of an ultrasonic fingerprint identification area, an acquired fingerprint image is incomplete, and therefore the accuracy of ultrasonic fingerprint identification is affected.
Disclosure of Invention
The embodiment of the application provides an ultrasonic fingerprint identification method and device, electronic equipment and a storage medium, and the accuracy of ultrasonic fingerprint identification can be improved.
A first aspect of an embodiment of the present application provides an ultrasonic fingerprint identification method, where the method is applied to an electronic device including a touch display screen and a plurality of ultrasonic fingerprint identification modules, and the method includes:
when a first fingerprint pressing operation and a second fingerprint pressing operation aiming at the touch display screen are detected, acquiring a first area of the touch display screen corresponding to the first fingerprint pressing operation and a second area of the touch display screen corresponding to the second fingerprint pressing operation;
determining M ultrasonic fingerprint identification modules corresponding to the first area, and determining N ultrasonic fingerprint identification modules corresponding to the second area, wherein M, N are positive integers;
awakening M ultrasonic fingerprint identification modules corresponding to the first area to perform ultrasonic fingerprint identification, and awakening N ultrasonic fingerprint identification modules corresponding to the second area to perform ultrasonic fingerprint identification.
A second aspect of the embodiments of the present application provides an ultrasonic fingerprint identification device, the device is applied to the electronic equipment including touch display screen and a plurality of ultrasonic fingerprint identification modules, the device is including obtaining the unit, confirming the unit and awakening up the unit, wherein:
the acquiring unit is used for acquiring a first area of the touch display screen corresponding to a first fingerprint pressing operation and acquiring a second area of the touch display screen corresponding to a second fingerprint pressing operation when the first fingerprint pressing operation and the second fingerprint pressing operation for the touch display screen are detected;
the determining unit is configured to determine M ultrasonic fingerprint identification modules corresponding to the first area, and determine N ultrasonic fingerprint identification modules corresponding to the second area, M, N being positive integers;
the awakening unit is used for awakening the M ultrasonic fingerprint identification modules corresponding to the first area to perform ultrasonic fingerprint identification, and awakening the N ultrasonic fingerprint identification modules corresponding to the second area to perform ultrasonic fingerprint identification.
A third aspect of the embodiments of the present application provides an electronic device, including a processor, a touch display screen, a plurality of ultrasonic fingerprint identification modules, an input device, an output device, and a memory, where the processor, the touch display screen, the plurality of ultrasonic fingerprint identification modules, the input device, the output device, and the memory are connected to each other, where the memory is used to store a computer program, and the computer program includes program instructions, and the processor is configured to call the program instructions to execute the step instructions in the first aspect of the embodiments of the present application.
A fourth aspect of embodiments of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform part or all of the steps as described in the first aspect of embodiments of the present application.
A fifth aspect of embodiments of the present application provides a computer program product, wherein the computer program product comprises a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps as described in the first aspect of embodiments of the present application. The computer program product may be a software installation package.
In the embodiment of the application, when a first fingerprint pressing operation and a second fingerprint pressing operation aiming at the touch display screen are detected, a first area of the touch display screen corresponding to the first fingerprint pressing operation is obtained, and a second area of the touch display screen corresponding to the second fingerprint pressing operation is obtained; determining M ultrasonic fingerprint identification modules corresponding to the first area, and determining N ultrasonic fingerprint identification modules corresponding to the second area, wherein M, N are positive integers; awakening M ultrasonic fingerprint identification modules corresponding to the first area to perform ultrasonic fingerprint identification, and awakening N ultrasonic fingerprint identification modules corresponding to the second area to perform ultrasonic fingerprint identification. Implement this application embodiment, owing to be provided with a plurality of ultrasonic fingerprint identification modules, when the fingerprint pressed the operation press the regional ultrasonic identification regional corresponding with a plurality of ultrasonic fingerprint identification modules of pressing, can awaken up a plurality of ultrasonic fingerprint identification modules simultaneously and carry out ultrasonic fingerprint identification to improve the ultrasonic fingerprint image's of gathering the integrity, and then improve ultrasonic fingerprint identification's the degree of accuracy. In addition, this application embodiment can also respond to two fingerprints simultaneously and press the operation and carry out ultrasonic fingerprint identification twice, can improve ultrasonic identification's security.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1A is a schematic structural diagram of an ultrasonic fingerprint identification module according to an embodiment of the present disclosure;
fig. 1B is a schematic diagram illustrating an array arrangement of a plurality of ultrasonic fingerprint identification modules according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart of an ultrasonic fingerprint identification method according to an embodiment of the present application;
fig. 3 is a diagram illustrating a correspondence relationship between an area of a touch display screen corresponding to a fingerprint pressing operation and an area of an ultrasonic fingerprint identification module according to an embodiment of the present disclosure;
FIG. 4 is a schematic flow chart illustrating another ultrasonic fingerprint identification method according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of an ultrasonic fingerprint identification device according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The electronic devices involved in the embodiments of the present application may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem with wireless communication functions, as well as various forms of User Equipment (UE), Mobile Stations (MS), terminal equipment (terminal device), and so on. For convenience of description, the above-mentioned devices are collectively referred to as electronic devices.
In order to better understand the ultrasonic fingerprint recognition method provided in the embodiment of the present application, a brief description is first given below to an ultrasonic fingerprint recognition module applying the ultrasonic fingerprint recognition method. Referring to fig. 1A, fig. 1A is a schematic structural diagram of an ultrasonic fingerprint identification module according to an embodiment of the present disclosure. As shown in fig. 1A, the ultrasonic fingerprint recognition module 100 includes: a substrate 101, a transmitting/receiving cathode 102, a piezoelectric material 103, a transmitting/receiving anode 104. Wherein, the emitting/receiving cathode 102 is disposed on the lower side of the substrate 101, the piezoelectric material 103 is disposed on the lower side of the emitting/receiving cathode 102, the emitting/receiving anode 104 is disposed on the lower side of the piezoelectric material 103, and the solidifying glue 111 is disposed on the lower side of the emitting/receiving anode 104. The solidified glue 111 is used for protecting the ultrasonic fingerprint identification module 100, and the glue 112 is arranged between the ultrasonic fingerprint identification module 100 and the OLED screen 105 and is used for adhering the ultrasonic fingerprint identification module 100 to the bottom of the OLED screen 105. A protective film 113 (e.g., a transparent polyester film) may be disposed on the OLED panel 105.
The piezoelectric material 103 may be a Copolymer (Copolymer) piezoelectric material, among others. The piezoelectric material 103 may convert an electrical signal into an ultrasonic wave.
The operating principle of ultrasonic fingerprint identification module can be:
and (3) a transmitting state: by supplying an oscillation signal of high frequency (typically in the order of 10 MHz), such as a sine wave, to the electrodes (the transmitting/receiving cathode 102 and the transmitting/receiving anode 104) at both ends of the piezoelectric material 103, the piezoelectric material 103 generates vibration of a response frequency and emits a transmitted ultrasonic wave 109. The transmitted ultrasonic waves 109 transmitted upward reach the fingerprint in contact with the screen surface after passing through the Organic Light-Emitting Diode (OLED) screen 105, and since the acoustic resistance characteristic of the air in the fingerprint valley 106 is greatly different from the acoustic resistance characteristic of the screen surface glass when the fingerprint ridge 107 is attached to the screen, the acoustic resistance characteristic of the skin tissue of the fingerprint ridge 107 is relatively greatly different from the acoustic resistance characteristic of the screen surface glass, and therefore, the intensity of the reflected signal of the transmitted ultrasonic waves 109 by the fingerprint ridge 107 is different.
Receiving state: when the reflected ultrasonic waves 108 pass through the display screen again and reach the transmitting/receiving cathode 102, the piezoelectric material is caused to vibrate to generate an electric signal, and the vibration intensities of the piezoelectric material in the areas where the transmitting/receiving cathode 102 is located, which correspond to the fingerprint valleys and the fingerprint ridges at different positions, are different, so that the potential differences received by the transmitting/receiving cathode 102 at different positions are different (the transmitting/receiving anode 104 is at the same potential). And converting the potential difference into a two-dimensional image signal, thereby obtaining an ultrasonic fingerprint image.
FIG. 1A illustrates the structure and operation of a single ultrasonic fingerprint recognition module. In order to understand the ultrasonic fingerprint identification method according to the embodiment of the present application, fig. 1B is a schematic diagram illustrating an array arrangement of a plurality of ultrasonic fingerprint identification modules according to the embodiment of the present application. As shown in fig. 1B, the ultrasonic fingerprint identification modules arranged in an array are distributed below the display screen, and each ultrasonic fingerprint identification module corresponds to a dashed frame in fig. 1B. Every ultrasonic fingerprint identification module all corresponds an ultrasonic identification region of display screen, because the ultrasonic signal of ultrasonic fingerprint identification module transmission is straight-up straight down (as shown in fig. 1A), the vertical projection of ultrasonic fingerprint identification module on the display screen is the ultrasonic identification region of this ultrasonic fingerprint identification module. Adopt the ultrasonic fingerprint identification module of array arrangement, can realize full-screen ultrasonic fingerprint identification's function, satisfy full-screen fingerprint identification's user demand.
Referring to fig. 2, fig. 2 is a schematic flowchart illustrating an ultrasonic fingerprint identification method according to an embodiment of the present disclosure. As shown in fig. 2, the ultrasonic fingerprint identification method is applied to electronic equipment, the electronic equipment comprises a touch display screen and a plurality of ultrasonic fingerprint identification modules, and the ultrasonic fingerprint identification method comprises the following steps.
201. When detecting that a first fingerprint pressing operation and a second fingerprint pressing operation are performed on the touch display screen, the electronic equipment acquires a first area of the touch display screen corresponding to the first fingerprint pressing operation and acquires a second area of the touch display screen corresponding to the second fingerprint pressing operation.
In the embodiment of the application, the ultrasonic fingerprint identification method can be applied to scenes with high safety, such as a payment verification scene and a private information verification scene (for example, the ultrasonic fingerprint identification method can be used for verification, and the private information of a user can be acquired only after the verification is successful).
The Touch Panel (TP) may be an Organic Light-Emitting display (OLED) screen shown in fig. 1A, and the ultrasonic fingerprint identification module may refer to the related description of fig. 1A. The touch display screen can detect position information pressed by a finger of a user, and the position information is used for detecting an area pressed by the finger of the user in the touch display screen.
The electronic equipment acquires a first area corresponding to the touch display screen through a first fingerprint pressing operation, and specifically comprises the following steps:
the electronic equipment determines that the first fingerprint pressing operation corresponds to a first area of the touch display screen through the touch display screen.
The electronic equipment acquires a second area of the touch display screen corresponding to the second fingerprint pressing operation, and specifically comprises the following steps:
the electronic equipment determines that the second fingerprint pressing operation corresponds to a second area of the touch display screen through the touch display screen.
Wherein, the first fingerprint pressing operation and the second fingerprint pressing operation correspond to the pressing operations of two different user fingers respectively. For example, a user can simultaneously press the touch display screen with two fingers, and then a first fingerprint pressing operation and a second fingerprint pressing operation can be detected.
The verification mode of this application embodiment needs the user to press the touch-control display screen with two fingers simultaneously, adopts the mode of dual ultrasonic fingerprint verification, can improve the security of ultrasonic fingerprint verification.
202. Electronic equipment confirms M ultrasonic fingerprint identification modules that correspond with the first region, confirms N ultrasonic fingerprint identification modules that correspond with the second region, and M, N is positive integer.
203. Electronic equipment awakens up and carries out ultrasonic fingerprint identification with the M ultrasonic fingerprint identification modules that first region corresponds, awakens up and carries out ultrasonic fingerprint identification with the N ultrasonic fingerprint identification modules that the second region corresponds.
In the embodiment of this application, the region that the user pointed the pressure can correspond an ultrasonic fingerprint identification module, also can correspond a plurality of ultrasonic fingerprint identification modules. If the region that the user finger pressed is just in the region that an ultrasonic fingerprint identification module corresponds, then this region that the user finger pressed corresponds an ultrasonic fingerprint identification module. If the regional coincidence that corresponds with a plurality of ultrasonic fingerprint modules of the region that the user finger pressed, then confirm that this user finger pressed the region and correspond a plurality of ultrasonic fingerprint identification modules.
Referring to fig. 3, fig. 3 is a diagram illustrating a correspondence relationship between a region of a touch display screen corresponding to a fingerprint pressing operation and a region of an ultrasonic fingerprint identification module according to an embodiment of the present application. As shown in fig. 3, the first area that the operation corresponds the touch display screen is pressed to first fingerprint, and the second area that the operation corresponds the touch display screen is pressed to the second fingerprint, and each dotted line frame in the picture all corresponds the fingerprint identification region of an ultrasonic fingerprint identification module, and only the fingerprint in this dotted line frame is pressed the operation and can be discerned by the ultrasonic fingerprint identification module that this dotted line frame corresponds. As shown in the left diagram of fig. 3, the first region is located within one of the dashed boxes and the second region is located within the other dashed box. An ultrasonic fingerprint identification module that first region corresponds, another ultrasonic fingerprint identification module is corresponded to in the second region. As shown in the right diagram of fig. 3, the first region is located in four dotted line frames, the second region is located in the other four dotted line frames, the first region corresponds to four ultrasonic fingerprint identification modules, and the second region corresponds to the other four ultrasonic fingerprint identification modules.
It should be noted that fig. 3 indicates a schematic diagram of a possible positional relationship between the first region and the second region disclosed in the embodiments of the present application. The first region can correspond one or more ultrasonic fingerprint identification modules, and the second region also can correspond one or more ultrasonic fingerprint identification modules.
Wherein M is a positive integer. For example, for a fingerprint recognition module with a square array arrangement, M is equal to 4; for a fingerprint identification module arranged in a hexagonal array, M is equal to 3.
Because the restriction in overall arrangement space under electronic equipment's the screen, can't set up a big ultrasonic fingerprint in the below of whole touch-control display screen by the module, can only set up a plurality of ultrasonic fingerprint identification modules in the below of touch-control display screen, the regional (promptly, every broken line frame) size that every ultrasonic fingerprint identification module corresponds the touch-control display screen is limited, every ultrasonic fingerprint identification module can only discern the fingerprint in the region of its touch-control display screen that corresponds. If the region that the operation corresponds is pressed to user's fingerprint just is arranged in an ultrasonic fingerprint identification module, as shown in the left picture of fig. 3, then electronic equipment directly awakens this ultrasonic fingerprint identification module up and carries out fingerprint identification, can accomplish the ultrasonic fingerprint identification that this fingerprint pressing operation corresponds. If the user fingerprint presses the region that the operation corresponds and just lies in a plurality of ultrasonic fingerprint identification modules, as shown in the right picture of fig. 3, then electronic equipment directly awakens up these a plurality of ultrasonic fingerprint identification modules and carries out fingerprint identification, can accomplish this fingerprint and press the ultrasonic fingerprint identification that the operation corresponds.
Optionally, in step 202, the electronic device determines M ultrasonic fingerprint recognition modules corresponding to the first region, determines N ultrasonic fingerprint recognition modules corresponding to the second region, and specifically:
the electronic equipment determines M ultrasonic identification areas corresponding to the first area and M ultrasonic fingerprint identification modules corresponding to the M ultrasonic identification areas; the electronic equipment confirms N ultrasonic identification areas corresponding to the second area, and confirms N ultrasonic fingerprint identification modules corresponding to the N ultrasonic identification areas.
Wherein, every ultrasonic fingerprint identification module all corresponds an ultrasonic fingerprint identification region, like the region that the dotted line frame that fig. 1B shows corresponds.
Optionally, the electronic device determines M ultrasonic identification regions corresponding to the first region, specifically: the electronic equipment determines P ultrasonic identification areas which coincide with the first area, and calculates the size of the area of the coincidence of the P ultrasonic identification areas and the first area; determining M ultrasonic identification areas with the superposition area with the first area larger than a preset area threshold value in the P ultrasonic identification areas;
the electronic device determines N ultrasonic identification areas corresponding to the second area, specifically: the electronic equipment determines Q ultrasonic identification areas which coincide with the second area, and calculates the size of the area of the coincidence of the Q ultrasonic identification areas and the second area; and determining N ultrasonic identification areas with the overlapped area of the Q ultrasonic identification areas and the second area larger than a preset area threshold.
In this embodiment, the preset area threshold may be preset and stored in a memory (e.g., a non-volatile memory) of the electronic device. The size of the preset area threshold value can be determined according to the minimum image area required by the electronic equipment for ultrasonic fingerprint identification. For the ultrasonic fingerprint identification module arranged in the square array, if the minimum image area required by the electronic equipment for ultrasonic fingerprint identification is S1, the area of the first area is S2, and the area of the second area is S3, the preset area threshold value S4 is less than or equal to (S2-S1)/4, and S3 is less than or equal to (S3-S1)/4.
If the area with the ultrasonic fingerprint identification area of first regional coincidence is very little, then need not to start the ultrasonic fingerprint identification module that this ultrasonic fingerprint identification area corresponds, also can carry out ultrasonic fingerprint identification. The power consumption of the ultrasonic fingerprint identification can be reduced under the condition of improving the accuracy of the ultrasonic fingerprint identification.
Implement this application embodiment, owing to be provided with a plurality of ultrasonic fingerprint identification modules, when the fingerprint pressed the operation press the regional ultrasonic identification regional corresponding with a plurality of ultrasonic fingerprint identification modules of pressing, can awaken up a plurality of ultrasonic fingerprint identification modules simultaneously and carry out ultrasonic fingerprint identification to improve the ultrasonic fingerprint image's of gathering the integrity, and then improve ultrasonic fingerprint identification's the degree of accuracy. In addition, this application embodiment can also respond to two fingerprints simultaneously and press the operation and carry out ultrasonic fingerprint identification twice, can improve ultrasonic identification's security.
Referring to fig. 4, fig. 4 is a schematic flowchart illustrating another ultrasonic fingerprint identification method according to an embodiment of the present application. Fig. 4 is further optimized on the basis of fig. 2, and as shown in fig. 4, the ultrasonic fingerprint identification method is applied to an electronic device, the electronic device includes a touch display screen and a plurality of ultrasonic fingerprint identification modules, and the ultrasonic fingerprint identification method includes the following steps.
401. When detecting that a first fingerprint pressing operation and a second fingerprint pressing operation are performed on the touch display screen, the electronic equipment acquires a first area of the touch display screen corresponding to the first fingerprint pressing operation and acquires a second area of the touch display screen corresponding to the second fingerprint pressing operation.
402. Electronic equipment confirms M ultrasonic fingerprint identification modules that correspond with the first region, confirms N ultrasonic fingerprint identification modules that correspond with the second region, and M, N is positive integer.
403. Electronic equipment awakens up and carries out ultrasonic fingerprint identification with the M ultrasonic fingerprint identification modules that first region corresponds, awakens up and carries out ultrasonic fingerprint identification with the N ultrasonic fingerprint identification modules that the second region corresponds.
The specific implementation of steps 401 to 403 in the embodiment of the present application may refer to steps 201 to 203 shown in fig. 2, which are not described herein again.
404. Electronic equipment is through M ultrasonic fingerprint identification modules that correspond with the first region gather M ultrasonic fingerprint images in the first region, splice M ultrasonic fingerprint images into first ultrasonic fingerprint image, through N ultrasonic fingerprint identification modules that correspond with the second region gather N ultrasonic fingerprint images in the second region, splice N ultrasonic fingerprint image into second ultrasonic fingerprint image.
Optionally, in step 404, the electronic device collects M ultrasonic fingerprint images in the first area through M ultrasonic fingerprint identification modules corresponding to the first area, specifically: the electronic equipment determines M transmitting powers corresponding to the M ultrasonic fingerprint identification modules respectively according to the size of the overlapping area of the first area and the M ultrasonic identification areas; and controlling M ultrasonic fingerprint identification modules to acquire M ultrasonic fingerprint images according to the determined M transmitting powers.
The smaller the overlapping area of the first region and the ultrasonic identification region is, the higher the corresponding transmission power is. The smaller the overlapping area of the first area and the ultrasonic identification area is, the overlapping part of the first area and the ultrasonic identification area is almost located at the edge part of the ultrasonic identification area, and the ultrasonic fingerprint identification effect is poor because the edge part is possibly interfered by an adjacent ultrasonic fingerprint identification module. This application embodiment increases marginal portion's ultrasonic wave transmitting power, reduces its interference that receives adjacent ultrasonic fingerprint identification module to improve marginal portion's ultrasonic fingerprint identification's the degree of accuracy.
In step 404, the electronic device collects N ultrasonic fingerprint images in the second area through N ultrasonic fingerprint identification modules corresponding to the second area, specifically: the electronic equipment determines N transmitting powers respectively corresponding to the N ultrasonic fingerprint identification modules according to the size of the superposition area of the second area and the N ultrasonic identification areas; and controlling the N ultrasonic fingerprint identification modules to acquire N ultrasonic fingerprint images according to the determined N transmitting powers.
The smaller the overlapping area of the second region and the ultrasonic identification region is, the higher the corresponding transmission power is. The smaller the overlapping area of the second area and the ultrasonic identification area is, the overlapping part of the second area and the ultrasonic identification area is almost located at the edge part of the ultrasonic identification area, and the ultrasonic fingerprint identification effect is poor because the edge part is possibly interfered by an adjacent ultrasonic fingerprint identification module. This application embodiment increases marginal portion's ultrasonic wave transmitting power, reduces its interference that receives adjacent ultrasonic fingerprint identification module to improve marginal portion's ultrasonic fingerprint identification's the degree of accuracy.
405. The electronic equipment verifies whether a template matched with the first ultrasonic fingerprint image exists in a plurality of prestored ultrasonic fingerprint identification templates or not, and whether a template matched with the second ultrasonic fingerprint image exists or not.
406. If a template matched with the first ultrasonic fingerprint image exists in the plurality of ultrasonic fingerprint identification templates and a template matched with the second ultrasonic fingerprint image exists, the electronic equipment determines that the ultrasonic fingerprint verification is passed.
In this application embodiment, electronic equipment can gather M ultrasonic fingerprint images in first region through M ultrasonic fingerprint identification modules that correspond with first region to splice M ultrasonic fingerprint images into first ultrasonic fingerprint image. N ultrasonic fingerprint identification module through corresponding with the second region gathers N ultrasonic fingerprint image in the second region to splice N ultrasonic fingerprint image into second ultrasonic fingerprint image. Make first ultrasonic fingerprint image and second ultrasonic fingerprint image contain more fingerprint characteristics, avoid appearing the unable circumstances of being gathered of marginal area's fingerprint information to improve ultrasonic fingerprint identification's the degree of accuracy.
The pre-stored ultrasonic fingerprint identification templates are pre-input, and a user can input a plurality of ultrasonic fingerprint templates corresponding to a plurality of fingers. When the ultrasonic fingerprint template is input, a user can be guided to input in one ultrasonic fingerprint identification area, and the reliability of the input fingerprint template is ensured.
Optionally, when typing in the ultrasonic fingerprint template of a certain finger, can guide the user to all type in every ultrasonic fingerprint identification region, confirm that the ultrasonic frequency that the best of the ultrasonic fingerprint identification module that every ultrasonic fingerprint identification region corresponds types the ultrasonic frequency that the effect corresponds to adjust for the working parameter (for example, ultrasonic frequency, ultrasonic power etc.) of follow-up every ultrasonic fingerprint identification module work, guarantee that every ultrasonic fingerprint identification module work is at best operating condition.
Implement this application embodiment, owing to be provided with a plurality of ultrasonic fingerprint identification modules, when the fingerprint pressed the operation press the regional ultrasonic identification regional corresponding with a plurality of ultrasonic fingerprint identification modules of pressing, can awaken up a plurality of ultrasonic fingerprint identification modules simultaneously and carry out ultrasonic fingerprint identification to improve the ultrasonic fingerprint image's of gathering the integrity, and then improve ultrasonic fingerprint identification's the degree of accuracy. In addition, this application embodiment can also respond to two fingerprints simultaneously and press the operation and carry out ultrasonic fingerprint identification twice, can improve ultrasonic identification's security.
Optionally, after step 405 is executed, the following steps may also be executed:
(11) if the template matched with the first ultrasonic fingerprint image does not exist in the plurality of ultrasonic fingerprint identification templates, the electronic equipment adjusts the transmitting frequency of the M ultrasonic fingerprint identification modules to obtain the adjusted first transmitting frequency;
(12) the electronic equipment controls the M ultrasonic fingerprint identification modules to acquire M new ultrasonic fingerprint images in a first area by using the adjusted first transmitting frequency, the M ultrasonic fingerprint images are spliced into a new first ultrasonic fingerprint image, and whether a template matched with the new first ultrasonic fingerprint image exists in a plurality of prestored ultrasonic fingerprint identification templates is verified;
(13) if the first fingerprint pressing operation is confirmed to pass the ultrasonic fingerprint verification, the electronic equipment confirms that the first fingerprint pressing operation passes the ultrasonic fingerprint verification.
In the embodiment of the application, the transmitting frequency of M ultrasonic fingerprint identification modules of electronic equipment adjustment specifically is: the electronic equipment confirms the transmitting frequency of M ultrasonic fingerprint identification modules according to the screen thickness parameter of M ultrasonic fingerprint identification regions that M ultrasonic fingerprint identification modules correspond.
Due to the abrasion of the touch display screen or the abrasion of the protective film attached to the touch display screen, in order to obtain a better ultrasonic wave collection effect, the thickness of the materials (e.g., the substrate 101, the OLED screen 105, the adhesive 112, and the protective film 113 on the OLED screen 105 in fig. 1A) is generally required to be an integral multiple of 1/4 of the current ultrasonic wave wavelength. If the material is abraded, for example, the protective film is abraded, the ultrasonic wave acquisition effect is deteriorated.
If the thickness of the screen in the M ultrasonic fingerprint identification areas is reduced, the transmitting frequency of the M ultrasonic fingerprint identification modules is increased; if detect the regional screen thickness increase of M ultrasonic fingerprint identification, then turn down the emission frequency of M ultrasonic fingerprint identification modules. So that the material thickness is integral multiple of 1/4 of the current ultrasonic wave wavelength, thereby improving the collection effect of the ultrasonic wave and further improving the accuracy of the ultrasonic wave identification.
Optionally, after step 405 is executed, the following steps may also be executed:
(21) if the template matched with the second ultrasonic fingerprint image does not exist in the plurality of ultrasonic fingerprint identification templates, the electronic equipment adjusts the transmitting frequency of the N ultrasonic fingerprint identification modules to obtain the adjusted second transmitting frequency;
(22) the electronic equipment controls the N ultrasonic fingerprint identification modules to acquire N new ultrasonic fingerprint images in a second area by using the adjusted second transmitting frequency, the N ultrasonic fingerprint images are spliced into a new second ultrasonic fingerprint image, and whether a template matched with the new second ultrasonic fingerprint image exists in a plurality of prestored ultrasonic fingerprint identification templates is verified;
(23) if the second fingerprint pressing operation exists, the electronic equipment determines that the second fingerprint pressing operation passes the ultrasonic fingerprint verification.
In the embodiment of the application, the transmitting frequency of the N ultrasonic fingerprint identification modules of electronic equipment adjustment specifically is: the electronic equipment confirms the emission frequency of N ultrasonic wave fingerprint identification modules according to the screen thickness parameter of the N ultrasonic wave fingerprint identification regions that N ultrasonic wave fingerprint identification modules correspond.
Due to the abrasion of the touch display screen or the abrasion of the protective film attached to the touch display screen, in order to obtain a better ultrasonic wave collection effect, the thickness of the materials (e.g., the substrate 101, the OLED screen 105, the adhesive 112, and the protective film 113 on the OLED screen 105 in fig. 1A) is generally required to be an integral multiple of 1/4 of the current ultrasonic wave wavelength. If the material is abraded, for example, the protective film is abraded, the ultrasonic wave acquisition effect is deteriorated.
If the thickness of the screen in the N ultrasonic fingerprint identification areas is reduced, the transmitting frequency of the N ultrasonic fingerprint identification modules is increased; if detect the regional screen thickness increase of N ultrasonic fingerprint identification, then turn down the emission frequency of N ultrasonic fingerprint identification modules. So that the material thickness is integral multiple of 1/4 of the current ultrasonic wave wavelength, thereby improving the collection effect of the ultrasonic wave and further improving the accuracy of the ultrasonic wave identification.
The above description has introduced the solution of the embodiment of the present application mainly from the perspective of the method-side implementation process. It is understood that the electronic device comprises corresponding hardware structures and/or software modules for performing the respective functions in order to realize the above-mentioned functions. Those of skill in the art will readily appreciate that the present application is capable of hardware or a combination of hardware and computer software implementing the various illustrative elements and algorithm steps described in connection with the embodiments provided herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiment of the present application, the electronic device may be divided into the functional units according to the method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
In accordance with the above, please refer to fig. 5, fig. 5 is a schematic structural diagram of an ultrasonic fingerprint identification apparatus provided in an embodiment of the present application, and the apparatus is applied to an electronic device, the electronic device includes a touch display screen and a plurality of ultrasonic fingerprint identification modules, and the ultrasonic fingerprint identification apparatus 500 includes: an obtaining unit 501, a determining unit 502 and a waking unit 503, wherein:
the acquiring unit 501 is configured to, when a first fingerprint pressing operation and a second fingerprint pressing operation for the touch display screen are detected, acquire a first area of the touch display screen corresponding to the first fingerprint pressing operation, and acquire a second area of the touch display screen corresponding to the second fingerprint pressing operation;
the determining unit 502 is configured to determine M ultrasonic fingerprint identification modules corresponding to the first area, and determine N ultrasonic fingerprint identification modules corresponding to the second area, M, N being positive integers;
the awakening unit 503 is configured to awaken the M ultrasonic fingerprint identification modules corresponding to the first region for ultrasonic fingerprint identification, and awaken the N ultrasonic fingerprint identification modules corresponding to the second region for ultrasonic fingerprint identification.
Optionally, the determining unit 502 determines M ultrasonic fingerprint identification modules corresponding to the first region, and determines N ultrasonic fingerprint identification modules corresponding to the second region, specifically: determining M ultrasonic identification areas corresponding to the first area, and determining M ultrasonic fingerprint identification modules corresponding to the M ultrasonic identification areas; and determining N ultrasonic identification areas corresponding to the second area, and determining N ultrasonic fingerprint identification modules corresponding to the N ultrasonic identification areas.
Optionally, the determining unit 502 determines M ultrasonic identification regions corresponding to the first region, specifically: determining P ultrasonic identification areas which coincide with the first area, and calculating the size of the area of the P ultrasonic identification areas which coincides with the first area; determining M ultrasonic identification regions of the P ultrasonic identification regions, wherein the overlapping area of the M ultrasonic identification regions and the first region is larger than a preset area threshold;
the determining unit 502 determines N ultrasonic identification regions corresponding to the second region, specifically: determining Q ultrasonic identification areas which coincide with the second area, and calculating the size of the area of the Q ultrasonic identification areas which coincides with the second area; and determining N ultrasonic identification areas with the superposition area with the second area larger than a preset area threshold in the Q ultrasonic identification areas.
Optionally, the ultrasonic fingerprint identification apparatus 500 may further include an acquisition unit 504, a splicing unit 505, and a verification unit 506.
The acquisition unit 504 is configured to acquire M ultrasonic fingerprint images in the first area through M ultrasonic fingerprint identification modules corresponding to the first area;
the stitching unit 505 is configured to stitch the M ultrasonic fingerprint images into a first ultrasonic fingerprint image;
the acquisition unit 504 is further configured to acquire N ultrasonic fingerprint images in the second area through N ultrasonic fingerprint identification modules corresponding to the second area;
the stitching unit 505 is further configured to stitch the N ultrasonic fingerprint images into a second ultrasonic fingerprint image;
the verification unit 506 is configured to verify whether a template matching the first ultrasonic fingerprint image exists in a plurality of pre-stored ultrasonic fingerprint identification templates and whether a template matching the second ultrasonic fingerprint image exists;
the determining unit 502 is further configured to determine that the ultrasonic fingerprint authentication is passed if the verifying unit 506 verifies that a template matching the first ultrasonic fingerprint image exists in the plurality of ultrasonic fingerprint identification templates and a template matching the second ultrasonic fingerprint image exists.
Optionally, the collecting unit 504 is in through with M ultrasonic fingerprint identification modules that the first region corresponds M ultrasonic fingerprint images are gathered to the first region, specifically are: determining M transmitting powers respectively corresponding to the M ultrasonic fingerprint identification modules according to the sizes of the overlapping areas of the first area and the M ultrasonic identification areas; controlling the M ultrasonic fingerprint identification modules to acquire M ultrasonic fingerprint images according to the determined M transmitting powers;
optionally, the collecting unit 504 is in through with a plurality of ultrasonic fingerprint identification modules that the second area corresponds a plurality of ultrasonic fingerprint images are gathered to the second area, specifically are: determining N transmitting powers respectively corresponding to the N ultrasonic fingerprint identification modules according to the sizes of the superposition areas of the second area and the N ultrasonic identification areas; and controlling the N ultrasonic fingerprint identification modules to acquire N ultrasonic fingerprint images according to the determined N transmitting powers.
Optionally, the ultrasonic fingerprint recognition device 500 may further include an adjustment unit 507.
The adjusting unit 507 is configured to adjust the transmitting frequencies of the M ultrasonic fingerprint identification modules to obtain an adjusted first transmitting frequency when the verifying unit 506 verifies that no template matching the first ultrasonic fingerprint image exists in the plurality of ultrasonic fingerprint identification templates;
the acquiring unit 504 is further configured to control the M ultrasonic fingerprint identification modules to acquire M new ultrasonic fingerprint images in the first area at the adjusted first transmitting frequency;
the stitching unit 505 is further configured to stitch the M ultrasonic fingerprint images into a new first ultrasonic fingerprint image;
the verification unit 506 is further configured to verify whether a template matching the new first ultrasonic fingerprint image exists in the pre-stored multiple ultrasonic fingerprint identification templates;
the determining unit 502 is further configured to determine that the first fingerprint pressing operation passes the ultrasonic fingerprint authentication if the verifying unit 506 verifies that a template matching the new first ultrasonic fingerprint image exists in the pre-stored plurality of ultrasonic fingerprint identification templates.
Optionally, the adjusting unit 507 is further configured to adjust the transmitting frequencies of the N ultrasonic fingerprint identification modules to obtain an adjusted second transmitting frequency when a template matching the second ultrasonic fingerprint image does not exist in the plurality of ultrasonic fingerprint identification templates;
the acquiring unit 504 is further configured to control the N ultrasonic fingerprint identification modules to acquire N new ultrasonic fingerprint images in the second area at the adjusted second transmitting frequency;
the stitching unit 505 is further configured to stitch the N ultrasonic fingerprint images into a new second ultrasonic fingerprint image;
the verification unit 506 is further configured to verify whether a template matching the new second ultrasonic fingerprint image exists in the pre-stored multiple ultrasonic fingerprint identification templates;
the determining unit 502 is further configured to determine that the second fingerprint pressing operation passes the ultrasonic fingerprint authentication if the verifying unit 506 verifies that a template matching the new second ultrasonic fingerprint image exists in the pre-stored plurality of ultrasonic fingerprint identification templates.
Implement this application embodiment, owing to be provided with a plurality of ultrasonic fingerprint identification modules, when the fingerprint pressed the operation press the regional ultrasonic identification regional corresponding with a plurality of ultrasonic fingerprint identification modules of pressing, can awaken up a plurality of ultrasonic fingerprint identification modules simultaneously and carry out ultrasonic fingerprint identification to improve the ultrasonic fingerprint image's of gathering the integrity, and then improve ultrasonic fingerprint identification's the degree of accuracy. In addition, this application embodiment can also respond to two fingerprints simultaneously and press the operation and carry out ultrasonic fingerprint identification twice, can improve ultrasonic identification's security.
Referring to fig. 6, fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure, as shown in fig. 6, the electronic device 600 includes a processor 601, a touch display screen 602, a plurality of ultrasonic fingerprint identification modules 603, an input device 604, an output device 605, and a memory 606, where the processor 601, the touch display screen 602, the plurality of ultrasonic fingerprint identification modules 603, the input device 604, the output device 605, and the memory 606 may be connected to each other through a communication bus 607. Wherein the memory 606 is used for storing a computer program comprising program instructions, and the processor 601 is configured for invoking the program instructions, said program comprising instructions for performing the methods shown in fig. 2 to 4.
Implement this application embodiment, owing to be provided with a plurality of ultrasonic fingerprint identification modules, when the fingerprint pressed the operation press the regional ultrasonic identification regional corresponding with a plurality of ultrasonic fingerprint identification modules of pressing, can awaken up a plurality of ultrasonic fingerprint identification modules simultaneously and carry out ultrasonic fingerprint identification to improve the ultrasonic fingerprint image's of gathering the integrity, and then improve ultrasonic fingerprint identification's the degree of accuracy. In addition, this application embodiment can also respond to two fingerprints simultaneously and press the operation and carry out ultrasonic fingerprint identification twice, can improve ultrasonic identification's security.
Embodiments of the present application also provide a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any one of the ultrasonic fingerprint identification methods as described in the above method embodiments.
Embodiments of the present application also provide a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program causes a computer to execute some or all of the steps of any one of the ultrasonic fingerprint identification methods as described in the above method embodiments.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may be implemented in the form of a software program module.
The integrated units, if implemented in the form of software program modules and sold or used as stand-alone products, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned memory comprises: various media capable of storing program codes, such as a usb disk, a read-only memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and the like.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash memory disks, read-only memory, random access memory, magnetic or optical disks, and the like.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. The ultrasonic fingerprint identification method is applied to electronic equipment comprising a touch display screen and a plurality of ultrasonic fingerprint identification modules, and comprises the following steps:
when a first fingerprint pressing operation and a second fingerprint pressing operation aiming at the touch display screen are detected, acquiring a first area of the touch display screen corresponding to the first fingerprint pressing operation and a second area of the touch display screen corresponding to the second fingerprint pressing operation;
determining M ultrasonic identification areas corresponding to the first area, and determining M ultrasonic fingerprint identification modules corresponding to the M ultrasonic identification areas; determining N ultrasonic identification areas corresponding to the second area, and determining N ultrasonic fingerprint identification modules corresponding to the N ultrasonic identification areas, wherein M, N are positive integers;
awakening M ultrasonic fingerprint identification modules corresponding to the first area for ultrasonic fingerprint identification, and awakening N ultrasonic fingerprint identification modules corresponding to the second area for ultrasonic fingerprint identification;
the transmitting power of the M ultrasonic fingerprint identification modules for ultrasonic fingerprint identification is inversely related to the overlapping area of the first area and the M ultrasonic identification areas; n ultrasonic fingerprint identification module carries out ultrasonic fingerprint identification's transmitting power with the second region with the area of coincidence negative correlation in N ultrasonic identification region.
2. The method of claim 1, wherein determining M ultrasonic fingerprinting modules corresponding to the first area and determining N ultrasonic fingerprinting modules corresponding to the second area comprises:
determining M ultrasonic identification areas corresponding to the first area, and determining M ultrasonic fingerprint identification modules corresponding to the M ultrasonic identification areas;
and determining N ultrasonic identification areas corresponding to the second area, and determining N ultrasonic fingerprint identification modules corresponding to the N ultrasonic identification areas.
3. The method of claim 2, wherein said determining M ultrasound identification regions corresponding to said first region comprises:
determining P ultrasonic identification areas which coincide with the first area, and calculating the size of the area of the P ultrasonic identification areas which coincides with the first area; determining M ultrasonic identification regions of the P ultrasonic identification regions, wherein the overlapping area of the M ultrasonic identification regions and the first region is larger than a preset area threshold;
the determining N ultrasonic identification regions corresponding to the second region includes:
determining Q ultrasonic identification areas which coincide with the second area, and calculating the size of the area of the Q ultrasonic identification areas which coincides with the second area; and determining N ultrasonic identification areas with the superposition area with the second area larger than a preset area threshold in the Q ultrasonic identification areas.
4. The method of claim 3, wherein the waking up the M ultrasonic fingerprint recognition modules corresponding to the first area for ultrasonic fingerprint recognition, and after waking up the N ultrasonic fingerprint recognition modules corresponding to the second area for ultrasonic fingerprint recognition, the method further comprises:
acquiring M ultrasonic fingerprint images in the first area through M ultrasonic fingerprint identification modules corresponding to the first area, splicing the M ultrasonic fingerprint images into a first ultrasonic fingerprint image, acquiring N ultrasonic fingerprint images in the second area through N ultrasonic fingerprint identification modules corresponding to the second area, and splicing the N ultrasonic fingerprint images into a second ultrasonic fingerprint image;
verifying whether a template matched with the first ultrasonic fingerprint image exists in a plurality of prestored ultrasonic fingerprint identification templates or not and whether a template matched with the second ultrasonic fingerprint image exists or not;
and if a template matched with the first ultrasonic fingerprint image exists in the plurality of ultrasonic fingerprint identification templates and a template matched with the second ultrasonic fingerprint image exists, determining that the ultrasonic fingerprint verification is passed.
5. The method of claim 4, wherein the acquiring M ultrasonic fingerprint images in the first area by M ultrasonic fingerprint identification modules corresponding to the first area comprises:
determining M transmitting powers respectively corresponding to the M ultrasonic fingerprint identification modules according to the sizes of the overlapping areas of the first area and the M ultrasonic identification areas;
controlling the M ultrasonic fingerprint identification modules to acquire M ultrasonic fingerprint images according to the determined M transmitting powers;
through with N ultrasonic fingerprint identification module that the second region corresponds is in N ultrasonic fingerprint image of second region collection includes:
determining N transmitting powers respectively corresponding to the N ultrasonic fingerprint identification modules according to the sizes of the superposition areas of the second area and the N ultrasonic identification areas;
and controlling the N ultrasonic fingerprint identification modules to acquire N ultrasonic fingerprint images according to the determined N transmitting powers.
6. The method according to claim 4 or 5, characterized in that the method further comprises:
if the template matched with the first ultrasonic fingerprint image does not exist in the plurality of ultrasonic fingerprint identification templates, adjusting the transmitting frequency of the M ultrasonic fingerprint identification modules to obtain an adjusted first transmitting frequency;
controlling the M ultrasonic fingerprint identification modules to acquire M new ultrasonic fingerprint images in the first area by using the adjusted first transmitting frequency, splicing the M ultrasonic fingerprint images into a new first ultrasonic fingerprint image, and verifying whether a template matched with the new first ultrasonic fingerprint image exists in a plurality of prestored ultrasonic fingerprint identification templates;
and if so, determining that the first fingerprint pressing operation passes the ultrasonic fingerprint verification.
7. The method according to claim 4 or 5, characterized in that the method further comprises:
if the template matched with the second ultrasonic fingerprint image does not exist in the plurality of ultrasonic fingerprint identification templates, adjusting the transmitting frequency of the N ultrasonic fingerprint identification modules to obtain an adjusted second transmitting frequency;
controlling the N ultrasonic fingerprint identification modules to acquire N new ultrasonic fingerprint images in the second area by using the adjusted second transmitting frequency, splicing the N ultrasonic fingerprint images into a new second ultrasonic fingerprint image, and verifying whether a template matched with the new second ultrasonic fingerprint image exists in a plurality of prestored ultrasonic fingerprint identification templates or not;
and if so, determining that the second fingerprint pressing operation passes the ultrasonic fingerprint verification.
8. The utility model provides an ultrasonic fingerprint identification device, its characterized in that, the device is applied to the electronic equipment including touch-control display screen and a plurality of ultrasonic fingerprint identification module, the device is including obtaining the unit, confirming the unit and awakening up the unit, wherein:
the acquiring unit is used for acquiring a first area of the touch display screen corresponding to a first fingerprint pressing operation and acquiring a second area of the touch display screen corresponding to a second fingerprint pressing operation when the first fingerprint pressing operation and the second fingerprint pressing operation for the touch display screen are detected;
the determining unit is configured to determine M ultrasonic fingerprint identification modules corresponding to the first area, and determine N ultrasonic fingerprint identification modules corresponding to the second area, M, N being positive integers;
the awakening unit is used for awakening the M ultrasonic fingerprint identification modules corresponding to the first area for ultrasonic fingerprint identification and awakening the N ultrasonic fingerprint identification modules corresponding to the second area for ultrasonic fingerprint identification;
the transmitting power of the M ultrasonic fingerprint identification modules for ultrasonic fingerprint identification is inversely related to the overlapping area of the first area and the M ultrasonic identification areas; n ultrasonic fingerprint identification module carries out ultrasonic fingerprint identification's transmitting power with the second region with the area of coincidence negative correlation in N ultrasonic identification region.
9. An electronic device, comprising a processor, a touch display screen, a plurality of ultrasonic fingerprint identification modules, an input device, an output device, and a memory, wherein the processor, the touch display screen, the plurality of ultrasonic fingerprint identification modules, the input device, the output device, and the memory are connected to each other, wherein the memory is used for storing a computer program, the computer program comprises program instructions, and the processor is configured to call the program instructions to execute the method according to any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that the computer storage medium stores a computer program comprising program instructions that, when executed by a processor, cause the processor to carry out the method according to any one of claims 1 to 7.
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| US20140359757A1 (en) * | 2013-06-03 | 2014-12-04 | Qualcomm Incorporated | User authentication biometrics in mobile devices |
| CN104063094B (en) * | 2014-07-02 | 2017-05-10 | 南昌欧菲生物识别技术有限公司 | Touch screen with fingerprint recognition function, terminal device and fingerprint recognition method |
| KR102277453B1 (en) * | 2015-02-05 | 2021-07-14 | 삼성전자주식회사 | Electronic device with touch sensor and driving method thereof |
| CN105354463B (en) * | 2015-09-30 | 2018-06-15 | 宇龙计算机通信科技(深圳)有限公司 | A kind of fingerprint identification method and mobile terminal |
| CN107609540B (en) * | 2015-10-19 | 2024-01-23 | Oppo广东移动通信有限公司 | Method and device for acquiring calibration parameters of fingerprint sensor and mobile terminal |
| CN105512652A (en) * | 2016-01-26 | 2016-04-20 | 广东欧珀移动通信有限公司 | Mobile terminal and fingerprint recognizing and sensing device |
| CN106250740A (en) * | 2016-07-19 | 2016-12-21 | 青岛海信移动通信技术股份有限公司 | A kind of fingerprint identification method and device |
| CN106295539A (en) * | 2016-08-03 | 2017-01-04 | 乐视控股（北京）有限公司 | Fingerprint identification method, fingerprint identification device and terminal unit |
| CN106535310A (en) * | 2016-11-13 | 2017-03-22 | 段赟 | Ultrasonic fingerprint identification region marking system with no need to carry out extra processing on mobile phone panel |
| CN106991387A (en) * | 2017-03-23 | 2017-07-28 | 宇龙计算机通信科技(深圳)有限公司 | A kind of full frame fingerprint collecting method and mobile terminal |
| CN107103288B (en) * | 2017-03-31 | 2020-12-18 | 南京车链科技有限公司 | Method and device for fingerprint identification by using terminal and terminal |
| CN107180179B (en) * | 2017-04-28 | 2020-07-10 | Oppo广东移动通信有限公司 | Unlocking control method and related product |
| CN107193471B (en) * | 2017-04-28 | 2020-07-21 | Oppo广东移动通信有限公司 | Unlocking control method and related product |
| CN107908222B (en) * | 2017-10-11 | 2021-01-15 | Oppo广东移动通信有限公司 | Terminal device |
| CN108491793A (en) * | 2018-03-22 | 2018-09-04 | 无锡睿勤科技有限公司 | A kind of control method and mobile terminal of fingerprint recognition |
| CN109614865B (en) * | 2018-11-06 | 2021-04-09 | Oppo广东移动通信有限公司 | Fingerprint identification method and related product |
| CN109583320A (en) * | 2018-11-08 | 2019-04-05 | Oppo广东移动通信有限公司 | Fingerprint identification method and relevant apparatus |
| CN109583437B (en) * | 2019-02-02 | 2020-12-04 | 京东方科技集团股份有限公司 | Display device |
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