CN106951884B - Fingerprint acquisition method and device and electronic equipment - Google Patents
Fingerprint acquisition method and device and electronic equipment Download PDFInfo
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- CN106951884B CN106951884B CN201710210856.5A CN201710210856A CN106951884B CN 106951884 B CN106951884 B CN 106951884B CN 201710210856 A CN201710210856 A CN 201710210856A CN 106951884 B CN106951884 B CN 106951884B
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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
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- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
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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
- G06V40/1347—Preprocessing; Feature extraction
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Abstract
The present disclosure provides a method, an apparatus, and an electronic device for collecting a fingerprint, where a specific implementation of the method includes: when a finger inputs a fingerprint on a screen, acquiring position information of an effective contact area of the finger on the screen; determining a fingerprint collection area based on the position information of the effective contact area; and performing fingerprint scanning on the fingerprint acquisition area to acquire fingerprint information. According to the embodiment, under the condition that the full-screen fingerprint identification function is adopted to collect the fingerprint image, the full-screen fingerprint scanning is not needed, and only the partial area contacted by the finger is scanned, so that the power consumption of the electronic equipment is reduced.
Description
Technical Field
The present disclosure relates to the field of electronic devices, and in particular, to a method and an apparatus for collecting a fingerprint, and an electronic device.
Background
With the continuous development of the technology, electronic equipment is more and more applied to daily life and work of people, and more convenience is provided for the life of people. At present, many electronic devices have a fingerprint identification function, and can perform identity authentication on a user through the fingerprint identification function. Generally, a small fingerprint acquisition area is arranged on the front side or the back side of the electronic equipment, and a user can contact the fingerprint acquisition area with a finger so as to perform fingerprint identification. In the related art, in order to facilitate the operation of a user and improve the user experience, some electronic devices have implemented a full-screen fingerprint identification function, and can implement fingerprint identification at any position of a screen. However, when a full-screen fingerprint recognition function is used to collect a fingerprint image, a full-screen fingerprint scan is required, and thus, power consumption of the electronic device is increased.
Disclosure of Invention
In order to solve the technical problem, the present disclosure provides a method and an apparatus for collecting a fingerprint, and an electronic device.
According to a first aspect of embodiments of the present disclosure, there is provided an electronic apparatus provided with a screen, the electronic apparatus including: the touch control panel, the microcontroller and the fingerprint sensor; wherein the touch control panel corresponds to the fingerprint sensor in position;
wherein the touch control panel is configured to detect position information of a contact point of a finger with a screen and transmit the position information of the contact point to the microcontroller when the finger inputs a fingerprint on the screen;
the microcontroller is configured to determine an effective contact area of a finger on a screen according to the position information of the contact point, acquire the position information of the effective contact area, determine a fingerprint acquisition area based on the position information of the effective contact area, and send a control instruction to the fingerprint sensor, wherein the control instruction comprises the information of the fingerprint acquisition area;
the fingerprint sensor is configured to respond to the control instruction sent by the microcontroller and conduct fingerprint scanning on the fingerprint acquisition area so as to acquire fingerprint information.
According to a second aspect of the embodiments of the present disclosure, there is provided a method of collecting a fingerprint, including:
when a finger inputs a fingerprint on a screen, acquiring position information of an effective contact area of the finger on the screen;
determining a fingerprint collection area based on the position information of the effective contact area;
and carrying out fingerprint scanning on the fingerprint acquisition area so as to acquire fingerprint information.
Optionally, the method further includes:
when a finger inputs a fingerprint on a screen, detecting position information of a contact point of the finger and the screen;
and determining the effective contact area according to the position information of the contact point.
Optionally, the determining the effective contact area according to the position information of each contact point includes:
determining a continuous contact area according to the position information of the contact point;
acquiring characteristic information of the continuous contact area;
and if the characteristic information meets a preset condition, determining the continuous contact area as an effective contact area.
Optionally, the feature information includes: characteristic information of the shape and/or characteristic information of the size.
Optionally, the determining a fingerprint collection area based on the position information of the effective contact area includes:
acquiring the central position of the effective contact area as a reference position according to the position information of the effective contact area;
and determining a rectangular area which takes the reference position as the center and the corresponding size as a preset size as a fingerprint acquisition area.
Optionally, the determining a fingerprint collection area based on the position information of the effective contact area includes:
determining a circumscribed rectangle of the effective contact area according to the position information of the effective contact area;
and determining the area corresponding to the circumscribed rectangle as a fingerprint acquisition area.
According to a third aspect of the embodiments of the present disclosure, there is provided an apparatus for collecting a fingerprint, including:
the acquisition module is configured to acquire position information of an effective contact area of a finger on a screen when the finger performs fingerprint input on the screen;
a first determination module configured to determine a fingerprint acquisition area based on location information of the effective contact area;
the fingerprint acquisition module is configured to perform fingerprint scanning on the fingerprint acquisition area so as to acquire fingerprint information.
Optionally, the apparatus further comprises:
a detection module configured to detect position information of a contact point of a finger with a screen when the finger performs a fingerprint input on the screen;
a second determination module configured to determine the effective contact area according to the position information of the contact point.
Optionally, the second determining module includes:
a first determination submodule configured to determine a continuous contact area from the position information of the contact point;
an acquisition sub-module configured to acquire characteristic information of the continuous contact area;
a second determination submodule configured to determine the continuous contact area as an effective contact area when the characteristic information satisfies a preset condition.
Optionally, the feature information includes: characteristic information of the shape and/or characteristic information of the size.
Optionally, the first determining module is configured to:
acquiring the central position of the effective contact area as a reference position according to the position information of the effective contact area;
and determining a rectangular area which takes the reference position as the center and the corresponding size as a preset size as a fingerprint acquisition area.
Optionally, the first determining module is configured to:
determining a circumscribed rectangle of the effective contact area according to the position information of the effective contact area;
and determining the area corresponding to the circumscribed rectangle as a fingerprint acquisition area.
According to a fourth aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
when a finger inputs a fingerprint on a screen, acquiring position information of an effective contact area of the finger on the screen;
determining a fingerprint collection area based on the position information of the effective contact area;
and carrying out fingerprint scanning on the fingerprint acquisition area so as to acquire fingerprint information.
According to a fifth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of:
when a finger inputs a fingerprint on a screen, acquiring position information of an effective contact area of the finger on the screen;
determining a fingerprint collection area based on the position information of the effective contact area;
and carrying out fingerprint scanning on the fingerprint acquisition area so as to acquire fingerprint information.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
the embodiment of the disclosure provides an electronic device provided with a screen, and the electronic device comprises a touch control board, a microcontroller and a fingerprint sensor, wherein the touch control board corresponds to the fingerprint sensor in position. When a finger inputs a fingerprint on the screen, the touch control panel detects position information of the contact point and transmits the position information of the contact point to the microcontroller. The microcontroller determines an effective contact area of the finger on the screen according to the position information of the contact point, acquires the position information of the effective contact area, determines a fingerprint acquisition area based on the position information of the effective contact area, and sends a control instruction to the fingerprint sensor. The fingerprint sensor responds to a control instruction sent by the microcontroller to perform fingerprint scanning on the fingerprint acquisition area so as to acquire fingerprint information. Under the condition of collecting the fingerprint image by adopting the full-screen fingerprint identification function, the fingerprint scanning is not required to be carried out on the full screen, and only the partial area contacted by the finger is scanned, so that the power consumption of the electronic equipment is reduced.
According to the method for collecting the fingerprint, when the fingerprint is input on the screen, the position information of the effective contact area of the finger on the screen is acquired, the fingerprint collection area is determined based on the position information of the effective contact area, and the fingerprint is scanned in the fingerprint collection area to collect the fingerprint information. Under the condition of collecting the fingerprint image by adopting the full-screen fingerprint identification function, the fingerprint scanning is not required to be carried out on the full screen, and only the partial area contacted by the finger is scanned, so that the power consumption of the electronic equipment is reduced.
According to another method for collecting a fingerprint provided by the embodiment of the disclosure, when a finger inputs a fingerprint on a screen, by detecting position information of a contact point, an effective contact area of the finger on the screen is determined according to the position information of the contact point, the position information of the effective contact area is acquired, a fingerprint collection area is determined based on the position information of the effective contact area, and the fingerprint collection area is subjected to fingerprint scanning to collect fingerprint information. Under the condition of collecting the fingerprint image by adopting the full-screen fingerprint identification function, the fingerprint scanning is not required to be carried out on the full screen, and only the partial area contacted by the finger is scanned, so that the power consumption of the electronic equipment is further reduced.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a block diagram illustrating the structure of an electronic device according to an exemplary embodiment of the present disclosure;
FIG. 2 is a flow chart illustrating a method of fingerprinting according to an exemplary embodiment of the present disclosure;
FIG. 3 is a schematic diagram illustrating an application scenario for fingerprinting according to an exemplary embodiment of the present disclosure;
FIG. 4 is a schematic diagram illustrating another example application scenario for fingerprinting according to an example embodiment;
FIG. 5 is a flow chart illustrating another method of fingerprinting according to an exemplary embodiment of the present disclosure;
FIG. 6 is a block diagram illustrating an apparatus for fingerprinting according to an exemplary embodiment of the present disclosure;
FIG. 7 is a block diagram illustrating another apparatus for fingerprinting in accordance with an exemplary embodiment of the present disclosure;
FIG. 8 is a block diagram illustrating another apparatus for fingerprinting in accordance with an exemplary embodiment of the present disclosure;
fig. 9 is a schematic structural diagram illustrating an apparatus for collecting fingerprints according to an exemplary embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
Referring to fig. 1, fig. 1 is a block diagram illustrating a structure of an electronic device according to an exemplary embodiment.
As shown in fig. 1, the electronic device 100 is an electronic device provided with a screen and having a full-screen fingerprint recognition function, and the electronic device 100 may include: a touch sensitive control panel 101, a microcontroller 102 and a fingerprint sensor 103. Wherein, the touch control panel 101 is located below the screen, and can detect the contact information of the finger on the screen. When a finger inputs a fingerprint on the screen, the tactile sensation control board 101 is triggered to enter a detection mode from the sleep mode, and the tactile sensation control board 101 can detect position information of a contact point of the finger on the screen.
The touch control panel 101 is electrically connected to the microcontroller 102, and the touch control panel 101 detects position information of a contact point of a finger on the screen and transmits the position information to the microcontroller 102. First, the microcontroller 102 may determine an effective contact area of the finger on the screen according to the position information of the contact point, specifically, may determine a continuous contact area according to the position information of the contact point, acquire feature information of the continuous contact area, and determine the continuous contact area as the effective contact area if the feature information satisfies a preset condition. The characteristic information may include characteristic information of a shape and/or characteristic information of a size, among others.
The microcontroller 102 may then obtain the position information of the active touch area and determine the fingerprint acquisition area based on the position information of the active touch area. Specifically, in one implementation, the microcontroller 102 may obtain a center position of the effective contact area as a reference position according to the position information of the effective contact area, and determine an area corresponding to a preset rectangle with the reference position as a center as the fingerprint acquisition area. In another implementation manner, the microcontroller 102 may further determine a circumscribed rectangle of the effective contact area according to the position information of the effective contact area, and determine an area corresponding to the circumscribed rectangle as the fingerprint acquisition area.
The microcontroller 102 is electrically connected to the fingerprint sensor 103, and after the microcontroller 102 determines the fingerprint collection area, the microcontroller 102 may send a control instruction to the fingerprint sensor 103, where the control instruction includes information about the fingerprint collection area. The fingerprint sensor 103 corresponds to the touch control panel 101 in position, and the fingerprint sensor 103 responds to the control instruction, enters a detection mode from a sleep mode, and scans the fingerprint only in the fingerprint collection area to collect fingerprint information.
The electronic device provided by the above embodiment of the present disclosure is provided with a screen, and includes a touch control board, a microcontroller and a fingerprint sensor, where the touch control board corresponds to the fingerprint sensor in position. When a finger inputs a fingerprint on the screen, the touch control panel detects position information of the contact point and transmits the position information of the contact point to the microcontroller. The microcontroller determines an effective contact area of the finger on the screen according to the position information of the contact point, acquires the position information of the effective contact area, determines a fingerprint acquisition area based on the position information of the effective contact area, and sends a control instruction to the fingerprint sensor. The fingerprint sensor responds to a control instruction sent by the microcontroller to perform fingerprint scanning on the fingerprint acquisition area so as to acquire fingerprint information. Under the condition of collecting the fingerprint image by adopting the full-screen fingerprint identification function, the fingerprint scanning is not required to be carried out on the full screen, and only the partial area contacted by the finger is scanned, so that the power consumption of the electronic equipment is reduced.
As shown in fig. 2, fig. 2 is a flowchart illustrating a method of fingerprinting, which may be applied in an electronic device according to an exemplary embodiment. In the present embodiment, for ease of understanding, an electronic device having a display screen and having a full-screen fingerprint recognition function is exemplified. Those skilled in the art will appreciate that the electronic device may include, but is not limited to, a mobile terminal device such as a smartphone, a smart wearable device, a tablet computer, a personal digital assistant, and the like. The method comprises the following steps:
in step 201, when a finger inputs a fingerprint on a screen, position information of an effective contact area of the finger on the screen is acquired.
In this embodiment, when a finger inputs a fingerprint on the screen, since the contact area of the finger on the screen does not necessarily capture a fingerprint image that meets the requirements, the position information of the effective contact area of the finger on the screen can be acquired. Wherein the effective contact area may be an area where it is possible to acquire a satisfactory fingerprint image.
In step 202, a fingerprint acquisition area is determined based on the position information of the active contact area.
In this embodiment, the fingerprint collection area may be further determined based on the position information of the effective contact area, as shown in fig. 3, in one implementation, a center position 302 of the effective contact area may be obtained according to the position information of the effective contact area 301, and the center position 302 serves as a reference position. Then, a rectangular area 303 is determined according to the reference position, the rectangular area 303 is centered at the reference position, and the size of the rectangular area 303 is a preset size, and the rectangular area can be used as a fingerprint collection area.
As shown in fig. 4, in another implementation manner, a circumscribed rectangle of the effective contact area 401 may also be determined according to the position information of the effective contact area 401, and then, an area 402 corresponding to the circumscribed rectangle may be determined as a fingerprint collection area.
It will be appreciated that the fingerprint collection area may also be determined in other ways based on the location information of the active contact area, and the present disclosure is not limited in the particular way in which the fingerprint collection area is determined.
In step 203, a fingerprint scan is performed on the fingerprint acquisition area to acquire fingerprint information.
In this embodiment, a fingerprint sensor may be used to perform fingerprint scanning on the fingerprint collection area to obtain a fingerprint image, so as to collect fingerprint information.
According to the method for collecting the fingerprint provided by the above embodiment of the present disclosure, when a finger inputs the fingerprint on the screen, the position information of the effective contact area of the finger on the screen is acquired, the fingerprint collection area is determined based on the position information of the effective contact area, and the fingerprint is scanned in the fingerprint collection area, so as to collect the fingerprint information. Under the condition of collecting the fingerprint image by adopting the full-screen fingerprint identification function, the fingerprint scanning is not required to be carried out on the full screen, and only the partial area contacted by the finger is scanned, so that the power consumption of the electronic equipment is reduced.
Fig. 5 is a flow chart illustrating another method of fingerprinting according to an exemplary embodiment detailing the process of determining an effective contact area, as shown in fig. 5, which may be applied in an electronic device, including the steps of:
in step 501, when a finger inputs a fingerprint on a screen, position information of a contact point of the finger with the screen is detected.
In step 502, the effective contact area of the finger on the screen is determined according to the position information of the contact point.
Generally, when fingerprint identification is performed, a user presses a finger to be detected on a screen area, and the screen area can be scanned, so that a fingerprint image is obtained, and the fingerprint image is compared and identified. However, if the gesture of pressing and placing the finger of the user is not correct or the user performs an incorrect operation, the recognition may fail, which not only affects the efficiency of fingerprint recognition, but also increases the power consumption of the electronic device.
In this embodiment, when fingerprint recognition is performed, if a finger touches the screen, detection of position information of a contact point is started, and then an effective contact area of the finger on the screen is determined according to the position information of the contact point. Specifically, first, continuous contact areas, each of which is a connected area, may be determined according to the position information of the contact point. Then, characteristic information of the continuous contact area, which may be characteristic information of a shape and/or characteristic information of a size, is acquired. For example, characteristic information of the shape of the continuous contact area, or characteristic information of the size of the continuous contact area, etc. may be obtained, and it is understood that the characteristic information may also be other characteristic information, which is not limited in this respect by the present disclosure.
Then, it is determined whether the feature information of the shape of the continuous contact area satisfies a preset condition, for example, if the feature information is the feature information of the shape, it is determined whether the similarity between the shape of the continuous contact area and a preset reference shape is less than or equal to a preset threshold, and if the similarity is less than or equal to the preset threshold, it indicates that the preset condition is satisfied. For another example, assuming that the feature information is feature information of a size, it is determined whether a difference between the size of the continuous contact area and a preset size is less than or equal to a preset threshold, and if the difference is less than or equal to the preset threshold, it indicates that the preset condition is satisfied. If the characteristic information of the continuous contact area satisfies a predetermined condition, the continuous contact area may be determined as an effective contact area.
It will be appreciated that the effective contact area of the finger on the screen may also be determined in other ways, and the present disclosure is not limited in the particular way in which the effective contact area of the finger on the screen is determined.
In step 503, position information of the effective contact area is acquired.
In step 504, a fingerprint acquisition area is determined based on the position information of the active contact area.
In step 505, a fingerprint scan is performed on the fingerprint acquisition area to acquire fingerprint information.
It should be noted that, for the same steps as in the embodiment of fig. 2, details are not repeated in the embodiment of fig. 5, and related contents may refer to the embodiment of fig. 2.
According to the method for collecting the fingerprint provided by the above embodiment of the present disclosure, when a finger inputs the fingerprint on the screen, by detecting the position information of the contact point, determining the effective contact area of the finger on the screen according to the position information of the contact point, acquiring the position information of the effective contact area, determining the fingerprint collection area based on the position information of the effective contact area, and performing fingerprint scanning on the fingerprint collection area to collect the fingerprint information. Under the condition of collecting the fingerprint image by adopting the full-screen fingerprint identification function, the fingerprint scanning is not required to be carried out on the full screen, and only the partial area contacted by the finger is scanned, so that the power consumption of the electronic equipment is further reduced.
It should be noted that while the operations of the disclosed methods are depicted in the drawings in a particular order, this does not require or imply that these operations must be performed in this particular order, or that all of the illustrated operations must be performed, to achieve desirable results. Rather, the steps depicted in the flowcharts may change the order of execution. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions.
Corresponding to the embodiment of the method for collecting the fingerprint, the disclosure also provides an embodiment of a device for collecting the fingerprint and an electronic device applied by the device.
As shown in fig. 6, fig. 6 is a block diagram of an apparatus for collecting fingerprints according to an exemplary embodiment of the present disclosure, the apparatus including: an acquisition module 601, a first determination module 602, and an acquisition module 603.
The acquisition module 601 is configured to acquire position information of an effective contact area of a finger on a screen when the finger performs fingerprint input on the screen.
A first determining module 602 configured to determine a fingerprint acquisition area based on the position information of the effective contact area.
An acquiring module 603 configured to perform fingerprint scanning on the fingerprint acquisition area to acquire fingerprint information.
As shown in fig. 7, fig. 7 is a block diagram of another fingerprint acquisition apparatus according to an exemplary embodiment of the present disclosure, where the apparatus may further include, on the basis of the foregoing embodiment shown in fig. 6: a detection module 604 and a second determination module 605.
The detection module 604 is configured to detect position information of a contact point of a finger with a screen when the finger performs a fingerprint input on the screen.
A second determination module 605 configured to determine an effective contact area based on the location information of the contact point.
As shown in fig. 8, fig. 8 is a block diagram of another apparatus for collecting fingerprints according to an exemplary embodiment of the present disclosure, and on the basis of the foregoing embodiment shown in fig. 7, the second determining module 605 may include: a first determination sub-module 801, an acquisition sub-module 802, and a second determination sub-module 803.
Wherein the first determining submodule 801 is configured to determine a continuous contact area from the position information of the contact point.
An obtaining sub-module 802 configured to obtain characteristic information of the continuous contact area.
A second determining sub-module 803 configured to determine the continuous contact area as an effective contact area when the above characteristic information satisfies a preset condition.
In some alternative embodiments, the characteristic information includes: characteristic information of the shape and/or characteristic information of the size.
In some optional embodiments, the first determining module 602 is configured to: and acquiring the central position of the effective contact area as a reference position according to the position information of the effective contact area, and determining a rectangular area which takes the reference position as the center and has a corresponding size as a preset size as a fingerprint acquisition area.
In some optional embodiments, the first determining module 602 is configured to: and determining a circumscribed rectangle of the effective contact area according to the position information of the effective contact area, and determining an area corresponding to the circumscribed rectangle as a fingerprint acquisition area.
It should be understood that the above-mentioned apparatus may be preset in the electronic device, and may also be loaded into the electronic device by downloading or the like. The corresponding module in the device can be matched with the module in the electronic equipment to realize the scheme of fingerprint collection.
For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, and 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 modules can be selected according to actual needs to achieve the purpose of the disclosed solution. One of ordinary skill in the art can understand and implement it without inventive effort.
Correspondingly, the present disclosure also provides an electronic device, which includes a processor; a memory for storing processor-executable instructions; wherein the processor is configured to:
when a finger inputs a fingerprint on a screen, acquiring the position information of an effective contact area of the finger on the screen;
determining a fingerprint collection area based on the position information of the effective contact area;
and performing fingerprint scanning on the fingerprint acquisition area to acquire fingerprint information.
Fig. 9 is a schematic diagram illustrating a structure of a fingerprint acquisition apparatus 9900 according to an exemplary embodiment. For example, the apparatus 9900 may be a mobile telephone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 9, the apparatus 9900 may include one or more of the following components: processing component 9902, memory 9904, power component 9906, multimedia component 9908, audio component 9910, input/output (I/O) interface 9912, sensor component 9914, and communication component 9916.
The processing component 9902 generally controls overall operation of the device 9900, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing element 9902 may include one or more processors 9920 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 9902 may include one or more modules that facilitate interaction between the processing component 9902 and other components. For example, the processing component 9902 may include a multimedia module to facilitate interaction between the multimedia component 9908 and the processing component 9902.
The memory 9904 is configured to store various types of data to support operations at the device 9900. Examples of such data include instructions for any application or method operating on the device 9900, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 9904 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The power supply component 9906 provides power to the various components of the device 9900. The power components 9906 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 9900.
The multimedia component 9908 includes a screen that provides an output interface between the device 9900 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 9908 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 9900 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 9910 is configured to output and/or input audio signals. For example, the audio component 9910 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 9900 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 9904 or transmitted via the communication component 9916. In some embodiments, the audio component 9910 also includes a speaker for outputting audio signals.
The I/O interface 9912 provides an interface between the processing component 9902 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 9914 includes one or more sensors for providing various aspects of status assessment for the device 9900. For example, the sensor assembly 9914 may detect an open/closed state of the device 9900, the relative positioning of components, such as a display and keypad of the device 9900, the sensor assembly 9914 may also detect a change in position of the device 9900 or a component of the device 9900, the presence or absence of user contact with the device 9900, orientation or acceleration/deceleration of the device 9900, and a change in temperature of the device 9900. The sensor assembly 9914 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 9914 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 9914 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, a microwave sensor, or a temperature sensor.
The communication component 9916 is configured to facilitate wired or wireless communication between the apparatus 9900 and other devices. The device 9900 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 9916 receives a broadcast signal or broadcast associated information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 9916 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 9900 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as the memory 9904 comprising instructions, executable by the processor 9920 of the apparatus 9900 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
In an exemplary embodiment, the computer program stored on the computer readable storage medium described above, when executed by a processor, implements the steps of:
when a finger inputs a fingerprint on a screen, acquiring position information of an effective contact area of the finger on the screen;
determining a fingerprint collection area based on the position information of the effective contact area;
and performing fingerprint scanning on the fingerprint acquisition area to acquire fingerprint information.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (11)
1. An electronic apparatus provided with a screen, characterized in that the electronic apparatus includes: the touch control panel, the microcontroller and the fingerprint sensor; wherein the touch control panel is positioned below the screen and corresponds to the fingerprint sensor in position;
wherein the touch control panel is configured to detect position information of a contact point of a finger with a screen and transmit the position information of the contact point to the microcontroller when the finger inputs a fingerprint on the screen;
the microcontroller is configured to determine an effective contact area of a finger on a screen according to the position information of the contact point, acquire the position information of the effective contact area, determine a fingerprint acquisition area based on the position information of the effective contact area, and send a control instruction to the fingerprint sensor, wherein the control instruction comprises the information of the fingerprint acquisition area;
the fingerprint sensor is configured to respond to the control instruction sent by the microcontroller and perform fingerprint scanning on the fingerprint acquisition area so as to acquire fingerprint information;
wherein the determining the effective contact area according to the position information of the contact point includes:
determining a continuous contact area according to the position information of the contact point;
acquiring characteristic information of the continuous contact area;
and if the characteristic information meets a preset condition, determining the continuous contact area as an effective contact area.
2. A method of fingerprinting, the method comprising:
when a finger inputs a fingerprint on a screen, detecting the position information of a contact point of the finger and the screen and determining the position information of an effective contact area of the finger on the screen according to the position information of the contact point;
determining a fingerprint collection area based on the position information of the effective contact area;
performing fingerprint scanning on the fingerprint acquisition area to acquire fingerprint information;
wherein the determining the effective contact area according to the position information of the contact point includes:
determining a continuous contact area according to the position information of the contact point;
acquiring characteristic information of the continuous contact area;
and if the characteristic information meets a preset condition, determining the continuous contact area as an effective contact area.
3. The method of claim 2, wherein the feature information comprises: characteristic information of the shape and/or characteristic information of the size.
4. The method of claim 2, wherein determining a fingerprint acquisition area based on the location information of the active contact area comprises:
acquiring the central position of the effective contact area as a reference position according to the position information of the effective contact area;
and determining a rectangular area which takes the reference position as the center and the corresponding size as a preset size as a fingerprint acquisition area.
5. The method of claim 2, wherein determining a fingerprint acquisition area based on the location information of the active contact area comprises:
determining a circumscribed rectangle of the effective contact area according to the position information of the effective contact area;
and determining the area corresponding to the circumscribed rectangle as a fingerprint acquisition area.
6. An apparatus for collecting a fingerprint, the apparatus comprising:
the acquisition module is configured to detect the position information of a contact point of a finger and a screen and determine the position information of an effective contact area of the finger on the screen according to the position information of the contact point when the finger inputs a fingerprint on the screen;
a first determination module configured to determine a fingerprint acquisition area based on position information of the effective contact area;
the acquisition module is configured to perform fingerprint scanning on the fingerprint acquisition area so as to acquire fingerprint information;
wherein the apparatus further comprises a second determining module comprising:
a first determination submodule configured to determine a continuous contact area from the position information of the contact point;
an acquisition sub-module configured to acquire characteristic information of the continuous contact area;
a second determination submodule configured to determine the continuous contact area as an effective contact area when the characteristic information satisfies a preset condition.
7. The apparatus of claim 6, wherein the feature information comprises: characteristic information of the shape and/or characteristic information of the size.
8. The apparatus of claim 6, wherein the first determining module is configured to:
acquiring the central position of the effective contact area as a reference position according to the position information of the effective contact area;
and determining a rectangular area which takes the reference position as the center and the corresponding size as a preset size as a fingerprint acquisition area.
9. The apparatus of claim 6, wherein the first determining module is configured to:
determining a circumscribed rectangle of the effective contact area according to the position information of the effective contact area;
and determining the area corresponding to the circumscribed rectangle as a fingerprint acquisition area.
10. An electronic device, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
when a finger inputs a fingerprint on a screen, detecting the position information of a contact point of the finger and the screen and determining the position information of an effective contact area of the finger on the screen according to the position information of the contact point;
determining a fingerprint collection area based on the position information of the effective contact area;
performing fingerprint scanning on the fingerprint acquisition area to acquire fingerprint information;
wherein the determining the effective contact area according to the position information of the contact point includes:
determining a continuous contact area according to the position information of the contact point;
acquiring characteristic information of the continuous contact area;
and if the characteristic information meets a preset condition, determining the continuous contact area as an effective contact area.
11. A computer-readable storage medium, on which a computer program is stored, which program, when executed by a processor, carries out the steps of:
when a finger inputs a fingerprint on a screen, detecting the position information of a contact point of the finger and the screen and determining the position information of an effective contact area of the finger on the screen according to the position information of the contact point;
determining a fingerprint collection area based on the position information of the effective contact area;
performing fingerprint scanning on the fingerprint acquisition area to acquire fingerprint information;
wherein the determining the effective contact area according to the position information of the contact point includes:
determining a continuous contact area according to the position information of the contact point;
acquiring characteristic information of the continuous contact area;
and if the characteristic information meets a preset condition, determining the continuous contact area as an effective contact area.
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| CN201710210856.5A CN106951884B (en) | 2017-03-31 | 2017-03-31 | Fingerprint acquisition method and device and electronic equipment |
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