WO2017088579A1 - 指纹识别方法及装置 - Google Patents

指纹识别方法及装置 Download PDF

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Publication number
WO2017088579A1
WO2017088579A1 PCT/CN2016/100066 CN2016100066W WO2017088579A1 WO 2017088579 A1 WO2017088579 A1 WO 2017088579A1 CN 2016100066 W CN2016100066 W CN 2016100066W WO 2017088579 A1 WO2017088579 A1 WO 2017088579A1
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WO
WIPO (PCT)
Prior art keywords
fingerprint recognition
area
sensor
fingerprint
finger
Prior art date
Application number
PCT/CN2016/100066
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English (en)
French (fr)
Inventor
李国盛
刘安昱
顾凌华
Original Assignee
小米科技有限责任公司
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Publication of WO2017088579A1 publication Critical patent/WO2017088579A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • 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
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1643—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being associated to a digitizer, e.g. laptops that can be used as penpads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/255—Detecting or recognising potential candidate objects based on visual cues, e.g. shapes
    • 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
    • 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
    • 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

Definitions

  • the present disclosure relates to the field of liquid crystal displays, and in particular, to a fingerprint identification method and apparatus.
  • the fingerprint recognition sensor configured in the electronic device can identify the fingerprint of the user and verify the fingerprint of the user. After the verification is passed, the user is allowed to operate the electronic device, thereby preventing the electronic device from being operated by a stranger and ensuring the security of the electronic device.
  • the related art provides a fingerprint identification method including: the electronic device detects whether an operation acting on the liquid crystal display is received, and when receiving the action on the liquid crystal display During the operation, the first line of the fingerprint recognition sensor in the liquid crystal display starts scanning line by line until the last line of the fingerprint recognition sensor in the liquid crystal display stops after scanning, and the fingerprint of the user is obtained.
  • the present disclosure provides a fingerprint identification method and apparatus.
  • a fingerprint identification method for an electronic device including a liquid crystal display having a fingerprint recognition sensor and a proximity light sensor distributed thereon, the method comprising:
  • a part of the fingerprint recognition sensor that controls the selection performs fingerprint recognition.
  • determining an area formed by each of the proximity photosensors whose distance from the finger is less than a predetermined distance threshold including:
  • the reflected signal is a signal obtained by the light signal emitted by the transmitting end of the light sensor being reflected by the finger;
  • the area composed of the position close to the photosensor is determined as the area.
  • determining an area formed by each of the proximity photosensors whose distance from the finger is less than a predetermined distance threshold further includes:
  • the step of performing the fingerprint recognition sensor according to the region selection portion is triggered.
  • a part of the fingerprint recognition sensor is selected according to the area, including:
  • the fingerprint recognition sensors are arranged in an array on the liquid crystal display, the number of columns and the number of rows covered by the area are determined, and the identification area of the rectangle is generated by using the number of columns as the length and the number of rows as the width, and each of the identification areas is determined.
  • Fingerprint recognition sensor When the fingerprint recognition sensors are arranged in an array on the liquid crystal display, the number of columns and the number of rows covered by the area are determined, and the identification area of the rectangle is generated by using the number of columns as the length and the number of rows as the width, and each of the identification areas is determined.
  • the selected fingerprint identification sensor is used for fingerprint recognition, including:
  • the control part fingerprint identification sensor is electrically connected to the corresponding data line
  • the fingerprint data collected by the partial fingerprint recognition sensor is output through the data line.
  • control part fingerprint identification sensor is electrically connected to the corresponding data line, and includes:
  • All the fingerprint recognition sensors are initialized and electrically connected to the corresponding data lines through the enable line control portion, wherein each fingerprint recognition sensor is electrically connected to the corresponding enable line.
  • a fingerprint identification apparatus for use in an electronic device including a liquid crystal display having a fingerprint recognition sensor and a proximity light sensor distributed thereon, the apparatus comprising:
  • An acquiring module configured to acquire a fingerprint recognition instruction triggered by a user's finger
  • a determining module configured to determine, after receiving the fingerprint identification instruction acquired by the acquiring module, an area composed of each proximity photosensor whose distance from the finger is less than a predetermined distance threshold;
  • a selection module configured to select a portion of the fingerprint recognition sensor according to the region determined by the determination module
  • the identification module is configured to control a part of the fingerprint recognition sensor selected by the selection module for fingerprint recognition.
  • the determining module includes:
  • the first determining submodule is configured to, after receiving the fingerprint identification instruction, determine the proximity photosensor to which each receiving end that receives the reflected signal belongs, and the reflected signal is that the optical signal emitted by the transmitting end in the proximity photosensor is reflected by the finger The signal obtained;
  • the second determining submodule is configured to determine an area formed by the position of the proximity photosensor determined by the first determining submodule as an area.
  • the determining module further includes:
  • the area detecting submodule is configured to detect, according to the area determined by the second determining submodule, whether the distance between the finger and the proximity photosensor is less than a predetermined distance threshold;
  • the operation triggering submodule is configured to trigger the selection module to perform a corresponding operation when the result detected by the area detecting submodule is that the distance between the finger and the proximity photosensor is less than a predetermined distance threshold.
  • the selection module includes:
  • a first selection sub-module configured to determine respective fingerprint recognition sensors distributed within the area
  • the second selection sub-module is configured to determine the number of columns and the number of rows covered by the region when the fingerprint recognition sensor is distributed on the liquid crystal display, and generate a rectangular identification region by using the number of columns as the length and the number of rows as the width. Identifying individual fingerprint recognition sensors distributed within the identification area.
  • the identification module includes:
  • connection control submodule configured to control a portion of the fingerprint recognition sensor to be electrically connected to the corresponding data line
  • the fingerprint output sub-module is configured to output the fingerprint data collected by the partial fingerprint recognition sensor through the data line.
  • connection control submodule is further configured to:
  • All the fingerprint recognition sensors are initialized and electrically connected to the corresponding data lines through the enable line control portion, wherein each fingerprint recognition sensor is electrically connected to the corresponding enable line.
  • a fingerprint identification apparatus comprising:
  • liquid crystal display screen with a fingerprint recognition sensor and a proximity light sensor
  • a memory for storing processor executable instructions
  • processor is configured to:
  • a part of the fingerprint recognition sensor that controls the selection performs fingerprint recognition.
  • the fingerprint recognition sensor performs fingerprint recognition, and can control part of the fingerprint recognition sensor for fingerprint recognition, and solves the problem of controlling the waste of resources caused by fingerprint recognition of all fingerprint recognition sensors on the entire liquid crystal display, thereby achieving the effect of saving resources.
  • the partial fingerprint recognition sensor is selected according to the area, and the proximity light sensor may first determine that the finger is in contact with the liquid crystal display, and then The fingerprint identification service is started, thereby avoiding the premature activation of the fingerprint recognition service for fingerprint recognition, resulting in waste of resources and achieving the effect of saving resources.
  • FIG. 1 is a flowchart of a fingerprint identification method according to an exemplary embodiment.
  • FIG. 2A is a flowchart of a fingerprint identification method according to another exemplary embodiment.
  • 2B is a schematic diagram of a region shown in accordance with another exemplary embodiment.
  • 2C is a schematic diagram of an identification area shown in accordance with another exemplary embodiment.
  • 2D is a control portion of a fingerprint recognition sensor for fingerprinting according to another exemplary embodiment.
  • the identified flow chart is a control portion of a fingerprint recognition sensor for fingerprinting according to another exemplary embodiment. The identified flow chart.
  • 2E is a first schematic diagram of a fingerprint recognition sensor, according to another exemplary embodiment.
  • 2F is a second schematic diagram of a fingerprint recognition sensor, according to another exemplary embodiment.
  • FIG. 3 is a block diagram of a fingerprint identification apparatus, according to an exemplary embodiment.
  • FIG. 4 is a block diagram of a fingerprint identification apparatus, according to an exemplary embodiment.
  • FIG. 5 is a block diagram of an apparatus for fingerprint recognition, according to an exemplary embodiment.
  • the fingerprint identification method includes the following steps.
  • step 101 acquiring a fingerprint recognition instruction triggered by a user's finger
  • step 102 after receiving the fingerprint recognition instruction, determining an area composed of each of the proximity photosensors whose distance from the finger is less than a predetermined distance threshold;
  • step 103 a partial fingerprint recognition sensor is selected according to the region
  • step 104 the selected partial fingerprint recognition sensor is controlled for fingerprint recognition.
  • the fingerprint identification method acquires a fingerprint recognition instruction triggered by a user's finger; after receiving the fingerprint recognition instruction, determines a region composed of each proximity light sensor whose distance from the finger is less than a predetermined distance threshold. Selecting part of the fingerprint recognition sensor according to the region; controlling part of the fingerprint recognition sensor for fingerprint recognition, and controlling part of the fingerprint recognition sensor for fingerprint recognition, and solving the problem of controlling waste of all fingerprint recognition sensors on the entire liquid crystal display for fingerprint recognition The problem has achieved the effect of saving resources.
  • FIG. 2A is a flowchart of a fingerprint identification method according to another exemplary embodiment, the fingerprint The identification method is applied to an electronic device including a liquid crystal display having a fingerprint recognition sensor and a proximity light sensor distributed thereon. As shown in FIG. 2A, the fingerprint recognition method includes the following steps.
  • step 201 a fingerprint recognition instruction triggered by a user's finger is acquired.
  • the fingerprint identification instruction is used to instruct the electronic device to start the fingerprint recognition service for fingerprint recognition.
  • the fingerprint identification instruction may be generated by the user control application in the process of using the application, and the electronic device may acquire the fingerprint identification instruction; or the electronic device may be obtained by other means, and the embodiment does not limit the fingerprint identification. How to get the instructions.
  • step 202 after receiving the fingerprint recognition command, an area composed of each of the proximity photosensors whose distance from the finger is less than a predetermined distance threshold is determined.
  • the user After receiving the fingerprint recognition command, the user needs to use a finger to trigger a touch operation on the liquid crystal display for the electronic device to perform fingerprint recognition.
  • the light signal emitted from the transmitting end of the light sensor is reflected by the finger to form a reflected signal, and the receiving end of the light sensor will receive the reflected signal.
  • the electronic device may determine the proximity photosensor to which the receiving end receiving the reflected signal belongs as a proximity photosensor having a distance from the finger that is less than a predetermined distance threshold.
  • the electronic device may calculate the distance between the finger and the liquid crystal display according to the time when each of the proximity photosensors emits the optical signal to the time when the reflected signal is received.
  • s is the distance between the finger and the liquid crystal display
  • c is the speed of light of 3.0 ⁇ 10 8 m/s
  • t is the time when the light sensor emits the light signal until the reflected signal is received.
  • the electronic device may acquire a distance between the determined finger and the liquid crystal display according to each proximity light sensor, and compare whether the determined distances are less than a predetermined distance threshold. When the distance is less than the predetermined distance threshold, the proximity light is illustrated.
  • the sensor has a finger close to it.
  • the electronic device can also form a region of each of the proximity photosensors that receive the reflected signal into one region.
  • the black dots distributed on the liquid crystal display indicate the proximity photosensor
  • the left side view in FIG. 2B indicates that the user's finger is close to the liquid crystal display, the right side in FIG. 2B.
  • the view represents an elliptical area formed when the finger approaches.
  • step 203 it is detected according to the area whether the distance between the finger and the proximity light sensor is less than a predetermined distance threshold; when it is detected according to the area that the distance between the finger and the proximity light sensor is less than a predetermined distance threshold, the step of executing is triggered. 204.
  • the electronic device Since the touch operation may be triggered by the user's finger, or may be triggered by other parts such as the palm, the electronic device needs to exclude the touch operation triggered by other parts, thereby avoiding the startup of the fingerprint recognition service for fingerprint recognition. Waste of resources.
  • the electronic device may calculate an area of the occlusion area, detect whether the area is less than a predetermined area threshold, determine that the touch operation is triggered by a finger when the area is less than a predetermined area threshold, and determine the area when the area is greater than a predetermined area threshold The touch operation is not triggered by a finger.
  • the electronic device may detect whether the shape of the occlusion region is an ellipse, and when the shape is an ellipse, determine that the touch operation is triggered by a finger; when the shape is not an ellipse, it is determined that the touch operation is not triggered by a finger.
  • the electronic device can also detect whether the touch operation is triggered by the finger in other manners, which is not limited in this embodiment.
  • step 204 a portion of the fingerprint recognition sensor is selected based on the region.
  • the electronic device can select according to the area.
  • Part of the fingerprint recognition sensor performs fingerprint recognition, which solves the problem of controlling the waste of resources caused by fingerprint recognition of all fingerprint recognition sensors on the entire liquid crystal display, thereby achieving the effect of saving resources.
  • the present embodiment provides two methods for selecting a partial fingerprint recognition sensor according to a region, and the two methods are respectively introduced below.
  • the electronic device can control each fingerprint recognition sensor distributed in the area for fingerprint recognition. At this time, the electronic device can acquire the coordinates of each fingerprint recognition sensor on the liquid crystal display, and then determine each fingerprint recognition sensor distributed in the region according to the coordinates.
  • the second determination method when the fingerprint recognition sensors are arranged in an array on the liquid crystal display, the number of columns and the number of rows covered by the area are determined, and the identification area of the rectangle is generated by using the number of columns as the length and the number of rows as the width. Each fingerprint recognition sensor distributed within the identification area is determined.
  • the electronic device calculates a large amount of the fingerprint recognition sensor distributed in the area. Therefore, the electronic device may first determine the identification area including the regular shape of the area, and then acquire each fingerprint identification. The coordinates of the sensor on the liquid crystal display, and then the respective fingerprint recognition sensors distributed in the identification area are determined according to the coordinates.
  • the identification area may be In the rectangular area, since the length and width of the rectangular area are fixed, the electronic device can easily determine the respective fingerprint recognition sensors distributed in the identification area.
  • the black dot distributed on the liquid crystal display indicates the fingerprint recognition sensor
  • the proximity area of the finger and the liquid crystal display screen forms an elliptical area, and is distributed in the area.
  • the fingerprint recognition sensor is the 2-3th of the 4th line, the 2-4th of the 5th line, and the 3-4th of the 6th line.
  • the identification area determined according to the elliptical area is a rectangular area, and the fingerprint recognition sensor distributed in the rectangular area is the 2-4th of each line in the 4th to 6th lines.
  • step 205 the selected partial fingerprint recognition sensor is controlled for fingerprint recognition.
  • a partial fingerprint identification sensor for controlling fingerprint selection is performed, and a selected partial fingerprint recognition sensor is used for fingerprint recognition, including:
  • control part fingerprint identification sensor is electrically connected to the corresponding data line
  • step 2052 the fingerprint data collected by the partial fingerprint recognition sensor is output through the data line.
  • the electronic device needs to activate these fingerprint recognition sensors to perform fingerprint recognition by these fingerprint recognition sensors.
  • the initiating the fingerprint recognition sensor comprises initializing the fingerprint recognition sensor and controlling the fingerprint recognition sensor to be electrically connected to the data line through the enable end.
  • control part fingerprint identification sensor is electrically connected to the corresponding data line, including: initializing all the fingerprint identification sensors, and electrically connecting the fingerprint identification sensor to the corresponding data line through the enable line control part, wherein each The fingerprint recognition sensor is electrically connected to the corresponding enable line.
  • Initializing all the fingerprint recognition sensors starts the fingerprint recognition service, controls all fingerprint recognition sensors to be in an idle state, and waits for a scan command.
  • the enable end of each fingerprint recognition sensor is electrically connected to the corresponding enable line, and the fingerprint identification sensor is electrically connected to the data line by using a signal transmitted on the enable line, and the data line is used for transmitting the collected data. Fingerprint data.
  • the black rectangle is a fingerprint recognition sensor
  • the horizontal line is an enable line
  • the vertical line is a data line
  • each fingerprint recognition sensor is connected to a corresponding one through a switch.
  • the line is enabled and not connected to the data line.
  • the fingerprint recognition of the second line can be controlled by transmitting signals on the enable line.
  • the sensor is electrically connected to the data line.
  • the electronic device controls the fingerprint recognition sensors to scan through the scan command to obtain fingerprint data, and transmits the fingerprint data through the data line for fingerprint recognition processing.
  • the fingerprint recognition sensor is a capacitive fingerprint recognition sensor
  • the fingerprint data is a capacitance value.
  • the step of initializing the fingerprint recognition sensor may be performed as early as step 201, so that after the electronic device determines the fingerprint recognition sensor, the electronic device can directly perform fingerprint recognition through the fingerprint recognition sensor in an idle state, thereby improving the efficiency of fingerprint recognition; Alternatively, the step can be performed at the latest after the electronic device determines the fingerprint recognition sensor that needs to perform fingerprint recognition, thereby saving waste of resources caused by opening the fingerprint recognition service prematurely.
  • the fingerprint identification method acquires a fingerprint recognition instruction triggered by a user's finger; after receiving the fingerprint recognition instruction, determines a region composed of each proximity light sensor whose distance from the finger is less than a predetermined distance threshold. Selecting part of the fingerprint recognition sensor according to the region; controlling part of the fingerprint recognition sensor for fingerprint recognition, and controlling part of the fingerprint recognition sensor for fingerprint recognition, and solving the problem of controlling waste of all fingerprint recognition sensors on the entire liquid crystal display for fingerprint recognition The problem has achieved the effect of saving resources.
  • selecting according to the area Part of the fingerprint recognition sensor can firstly determine that the finger is in contact with the liquid crystal display through the proximity light sensor, and then start the fingerprint recognition service, thereby avoiding the premature activation of the fingerprint recognition service for fingerprint recognition, resulting in waste of resources and saving resources. effect.
  • FIG. 3 is a block diagram of a fingerprint identification device, which is applied to an electronic device including a liquid crystal display having a fingerprint recognition sensor and a proximity light sensor distributed thereon, as shown in FIG.
  • the fingerprint identification device includes an acquisition module 310, a determination module 320, a selection module 330, and an identification module 340.
  • the obtaining module 310 is configured to acquire a fingerprint recognition instruction triggered by a user's finger
  • the determining module 320 is configured to, after receiving the fingerprint identification instruction acquired by the obtaining module 310, determine an area composed of each proximity photosensor whose distance between the fingers is less than a predetermined distance threshold;
  • the selection module 330 is configured to select a partial fingerprint recognition sensor according to the region determined by the determination module 320;
  • the identification module 340 is configured to control a partial fingerprint recognition sensor selected by the selection module 330 for fingerprint recognition.
  • the fingerprint identification device acquires a fingerprint recognition instruction triggered by a user's finger; and after receiving the fingerprint recognition instruction, determines an area composed of each proximity light sensor whose distance from the finger is less than a predetermined distance threshold. Selecting part of the fingerprint recognition sensor according to the region; controlling part of the fingerprint recognition sensor for fingerprint recognition, and controlling part of the fingerprint recognition sensor for fingerprint recognition, and solving the problem of controlling waste of all fingerprint recognition sensors on the entire liquid crystal display for fingerprint recognition The problem has achieved the effect of saving resources.
  • FIG. 4 is a block diagram of a fingerprint identification device, which is applied to an electronic device including a liquid crystal display having a fingerprint recognition sensor and a proximity light sensor distributed thereon, as shown in FIG.
  • the fingerprint identification device includes an acquisition module 410, a determination module 420, a selection module 430, and an identification module 440.
  • the obtaining module 410 is configured to acquire a fingerprint recognition instruction triggered by a user's finger
  • the determining module 420 is configured to, after receiving the fingerprint identification instruction acquired by the obtaining module 410, determine an area composed of each of the proximity photosensors whose distance from the finger is less than a predetermined distance threshold;
  • the selection module 430 is configured to select a partial fingerprint recognition sensor according to the region determined by the determination module 420;
  • the identification module 440 is configured to control a partial fingerprint recognition sensor selected by the selection module 430 for fingerprint recognition.
  • the determining module 420 includes: a first determining submodule 421 and a second determining submodule 422.
  • the first determining sub-module 421 is configured to, after receiving the fingerprint identification instruction, determine a proximity light sensor to which each receiving end that receives the reflected signal belongs, and the reflected signal is a light signal emitted by the transmitting end of the proximity light sensor by the finger a signal obtained after reflection;
  • the second determining sub-module 422 is configured to determine an area determined by the first determining sub-module 421 to be close to the position of the photosensor as an area.
  • the determining module 420 further includes: an area detecting submodule 423 and an operation triggering submodule 424;
  • the area detecting submodule 423 is configured to detect, according to the area determined by the second determining submodule 423, whether the distance between the finger and the proximity light sensor is less than a predetermined distance threshold;
  • the operation triggering sub-module 424 is configured to trigger the selection module 430 to perform a corresponding operation when the result detected by the area detecting sub-module 423 is that the distance between the finger and the proximity light sensor is less than a predetermined distance threshold.
  • the selecting module 430 includes: a first selecting submodule 431 and a second selecting submodule 432.
  • the first selection sub-module 431 is configured to determine each fingerprint recognition sensor distributed in the area; or
  • the second selection sub-module 432 is configured to determine the number of columns and the number of rows covered by the region when the fingerprint recognition sensor is distributed on the liquid crystal display, and generate a rectangle with the number of columns as the length and the number of rows as the width.
  • the identification area identifies individual fingerprint recognition sensors distributed within the identification area.
  • the identification module 440 includes: a connection control sub-module 441 and a fingerprint output sub-module 442;
  • connection control sub-module 441 is configured to control a part of the fingerprint recognition sensor to be electrically connected to the corresponding data line;
  • the fingerprint output sub-module 442 is configured to output fingerprint data collected by the partial fingerprint recognition sensor through the data line.
  • connection control submodule 441 is further configured to:
  • All the fingerprint recognition sensors are initialized and electrically connected to the corresponding data lines through the enable line control portion, wherein each fingerprint recognition sensor is electrically connected to the corresponding enable line.
  • the fingerprint identification device acquires a fingerprint recognition instruction triggered by a user's finger; and after receiving the fingerprint recognition instruction, determines an area composed of each proximity light sensor whose distance from the finger is less than a predetermined distance threshold. Selecting part of the fingerprint recognition sensor according to the region; controlling part of the fingerprint recognition sensor for fingerprint recognition, and controlling part of the fingerprint recognition sensor for fingerprint recognition, and solving the problem of controlling waste of all fingerprint recognition sensors on the entire liquid crystal display for fingerprint recognition The problem has achieved the effect of saving resources.
  • selecting according to the area Part of the fingerprint recognition sensor can firstly determine that the finger is in contact with the liquid crystal display through the proximity light sensor, and then start the fingerprint recognition service, thereby avoiding the premature activation of the fingerprint recognition service for fingerprint recognition, resulting in waste of resources and saving resources. effect.
  • An exemplary embodiment of the present disclosure provides a fingerprint recognition apparatus capable of implementing the present disclosure.
  • a fingerprint identification method the fingerprint identification device is used in an electronic device, comprising: a liquid crystal display screen, a fingerprint recognition sensor and a proximity light sensor are distributed on the liquid crystal display; a processor, a memory for storing executable instructions of the processor;
  • processor is configured to:
  • a part of the fingerprint recognition sensor that controls the selection performs fingerprint recognition.
  • FIG. 5 is a block diagram of an apparatus 500 for fingerprint recognition, according to an exemplary embodiment.
  • device 500 can be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a gaming console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • apparatus 500 can include one or more of the following components: processing component 502, memory 504, power component 506, multimedia component 508, audio component 510, input/output (I/O) interface 512, sensor component 514, And a communication component 516.
  • Processing component 502 typically controls the overall operation of device 500, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • Processing component 502 can include one or more processors 518 to execute instructions to perform all or part of the steps described above.
  • processing component 502 can include one or more modules to facilitate interaction between component 502 and other components.
  • processing component 502 can include a multimedia module to facilitate interaction between multimedia component 508 and processing component 502.
  • Memory 504 is configured to store various types of data to support operation at device 500. Examples of such data include instructions for any application or method operating on device 500, contact data, phone book data, messages, pictures, videos, and the like.
  • the memory 504 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM Electrically erasable programmable read only memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Disk Disk or Optical Disk.
  • Power component 506 provides power to various components of device 500.
  • Power component 506 can include electricity The source management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 500.
  • the multimedia component 508 includes a screen between the device 500 and the user that provides an output interface.
  • the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a liquid crystal display to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor may sense not only the boundary of the touch or sliding action, but also the duration and pressure associated with the touch or slide operation.
  • the multimedia component 508 includes a front camera and/or a rear camera. When the device 500 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 510 is configured to output and/or input an audio signal.
  • audio component 510 includes a microphone (MIC) that is configured to receive an external audio signal when device 500 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode.
  • the received audio signal may be further stored in memory 504 or transmitted via communication component 516.
  • audio component 510 also includes a speaker for outputting an audio signal.
  • the I/O interface 512 provides an interface between the processing component 502 and the peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to, a home button, a volume button, a start button, and a lock button.
  • Sensor assembly 514 includes one or more sensors for providing device 500 with various aspects of status assessment.
  • sensor assembly 514 can detect an open/closed state of device 500, a relative positioning of components, such as the display and keypad of device 500, and sensor component 514 can also detect a change in position of one component of device 500 or device 500. The presence or absence of user contact with device 500, device 500 orientation or acceleration/deceleration, and temperature variation of device 500.
  • Sensor assembly 514 can include a proximity light sensor configured to detect the presence of nearby objects without any physical contact.
  • Sensor assembly 514 may also include a proximity light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • Sensor component 514 can also include a fingerprint recognition sensor configured to recognize the fingerprint.
  • the sensor component 514 can also include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 516 is configured to facilitate wired or wireless communication between device 500 and other devices.
  • the device 500 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
  • communication component 516 receives broadcast signals or broadcast associated information from an external broadcast management system via a broadcast channel.
  • the communication component 516 also includes a near field communication (NFC) module to facilitate short range communication.
  • NFC near field communication
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • apparatus 500 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 A gate array (FPGA), controller, microcontroller, microprocessor, or other electronic component implementation for performing the above methods.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor, or other electronic component implementation for performing the above methods.
  • non-transitory computer readable storage medium comprising instructions, such as a memory 504 comprising instructions executable by processor 518 of apparatus 500 to perform the above method.
  • 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, and an optical data storage device.

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Abstract

本公开关于一种指纹识别方法及装置，属于液晶显示屏领域。所述方法用于包括液晶显示屏的电子设备中，所述液晶显示屏上分布有指纹识别传感器和接近光传感器，包括：获取用户手指触发的指纹识别指令；在接收到所述指纹识别指令后，确定与所述手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域；根据所述区域选择部分指纹识别传感器；控制选择的所述部分指纹识别传感器进行指纹识别。本公开可解决控制整个液晶显示屏上的所有指纹识别传感器进行指纹识别造成资源浪费的问题，可达到节省资源的效果。

Description

指纹识别方法及装置
本申请基于申请号为201510835514.3、申请日为2015年11月26日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本公开涉及液晶显示屏领域，特别涉及一种指纹识别方法及装置。
背景技术
电子设备中配置的指纹识别传感器可以识别用户的指纹，并对用户的指纹进行验证，在验证通过后，允许用户操作电子设备，从而避免电子设备被陌生人操作，保证电子设备的安全性。
当电子设备的液晶显示屏上均匀分布有指纹识别传感器时，相关技术提供的一种指纹识别方法包括：电子设备检测是否接收到作用于液晶显示屏上的操作，当接收到作用于液晶显示屏上的操作时，从液晶显示屏中的第一行指纹识别传感器开始逐行扫描，直至液晶显示屏中的最后一行指纹识别传感器扫描完后停止，得到用户的指纹。
发明内容
为解决相关技术中的问题，本公开提供了一种指纹识别方法及装置。
根据本公开实施例的第一方面，提供一种指纹识别方法，用于包括液晶显示屏的电子设备中，该液晶显示屏上分布有指纹识别传感器和接近光传感器，该方法包括：
获取用户手指触发的指纹识别指令；
在接收到指纹识别指令后，确定与手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域；
根据区域选择部分指纹识别传感器；
控制选择的部分指纹识别传感器进行指纹识别。
可选的，在接收到指纹识别指令后，确定与手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域，包括：
在接收到指纹识别指令后，确定接收到反射信号的各个接收端所属的接近光传感器，反射信号是接近光传感器中的发射端发射的光信号被手指反射后得到的信号；
将接近光传感器的位置所组成的区域确定为区域。
可选的，在接收到指纹识别指令后，确定与手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域，还包括：
根据区域检测是否是手指与接近光传感器之间的距离小于预定距离阈值；
当根据区域检测出是手指与接近光传感器之间的距离小于预定距离阈值时，触发执行根据区域选择部分指纹识别传感器的步骤。
可选的，根据区域选择部分指纹识别传感器，包括：
确定分布在区域内的各个指纹识别传感器；或者，
当指纹识别传感器呈阵列分布在液晶显示屏上时，确定区域所覆盖的列数和行数，以列数为长度、以行数为宽度生成矩形的识别区域，确定分布在识别区域内的各个指纹识别传感器。
可选的，控制选择的部分指纹识别传感器进行指纹识别，包括：
控制部分指纹识别传感器与对应的数据线电性相连；
通过数据线对部分指纹识别传感器采集的指纹数据进行输出。
可选的，控制部分指纹识别传感器与对应的数据线电性相连，包括：
初始化所有的指纹识别传感器，并通过使能线控制部分指纹识别传感器与对应的数据线电性相连，其中，每个指纹识别传感器与对应的使能线电性相连。
根据本公开实施例的第二方面，提供一种指纹识别装置，用于包括液晶显示屏的电子设备中，该液晶显示屏上分布有指纹识别传感器和接近光传感器，该装置包括：
获取模块，被配置为获取用户手指触发的指纹识别指令；
确定模块，被配置为在接收到获取模块获取的指纹识别指令后，确定与手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域；
选择模块，被配置为根据确定模块确定的区域选择部分指纹识别传感器；
识别模块，被配置为控制选择模块选择的部分指纹识别传感器进行指纹识别。
可选的，该确定模块，包括：
第一确定子模块，被配置为在接收到指纹识别指令后，确定接收到反射信号的各个接收端所属的接近光传感器，反射信号是接近光传感器中的发射端发射的光信号被手指反射后得到的信号；
第二确定子模块，被配置为将第一确定子模块确定的接近光传感器的位置所组成的区域确定为区域。
可选的，该确定模块，还包括：
区域检测子模块，被配置为根据第二确定子模块确定的区域检测是否是手指与接近光传感器之间的距离小于预定距离阈值；
操作触发子模块，被配置为当区域检测子模块检测的结果为手指与接近光传感器之间的距离小于预定距离阈值时，触发选择模块执行对应的操作。
可选的，该选择模块，包括：
第一选择子模块，被配置为确定分布在区域内的各个指纹识别传感器；或者，
第二选择子模块，被配置为当指纹识别传感器呈阵列分布在液晶显示屏上时，确定区域所覆盖的列数和行数，以列数为长度、以行数为宽度生成矩形的识别区域，确定分布在识别区域内的各个指纹识别传感器。
可选的，该识别模块，包括：
连接控制子模块，被配置为控制部分指纹识别传感器与对应的数据线电性相连；
指纹输出子模块，被配置为通过数据线对部分指纹识别传感器采集的指纹数据进行输出。
可选的，该连接控制子模块，还被配置为：
初始化所有的指纹识别传感器，并通过使能线控制部分指纹识别传感器与对应的数据线电性相连，其中，每个指纹识别传感器与对应的使能线电性相连。
根据本公开实施例的第三方面，提供一种指纹识别装置，该装置包括：
液晶显示屏，液晶显示屏上分布有指纹识别传感器和接近光传感器；
处理器；
用于存储处理器可执行指令的存储器；
其中，该处理器被配置为：
获取用户手指触发的指纹识别指令；
在接收到指纹识别指令后，确定与手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域；
根据区域选择部分指纹识别传感器；
控制选择的部分指纹识别传感器进行指纹识别。
本公开的实施例提供的技术方案可以包括以下有益效果：
通过获取用户手指触发的指纹识别指令；在接收到指纹识别指令后，确定与手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域；根据区域选择部分指纹识别传感器；控制选择的部分指纹识别传感器进行指纹识别，可以控制部分指纹识别传感器进行指纹识别，解决了控制整个液晶显示屏上的所有指纹识别传感器进行指纹识别造成资源浪费的问题，达到了节省资源的效果。
另外，通过当根据该区域检测出是手指与接近光传感器之间的距离小于预定距离阈值时，根据该区域选择部分指纹识别传感器，可以先通过接近光传感器确定是手指与液晶显示屏接触，再启动指纹识别服务，从而避免过早启动指纹识别服务来进行指纹识别，造成资源浪费的问题，达到了节省资源的效果。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本公开说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种指纹识别方法的流程图。
图2A是根据另一示例性实施例示出的一种指纹识别方法的流程图。
图2B是根据另一示例性实施例示出的区域的示意图。
图2C是根据另一示例性实施例示出的识别区域的示意图。
图2D是根据另一示例性实施例示出的控制部分指纹识别传感器进行指纹 识别的流程图。
图2E是根据另一示例性实施例示出的指纹识别传感器的第一种示意图。
图2F是根据另一示例性实施例示出的指纹识别传感器的第二种示意图。
图3是根据一示例性实施例示出的一种指纹识别装置的框图。
图4是根据一示例性实施例示出的一种指纹识别装置的框图。
图5是根据一示例性实施例示出的一种用于指纹识别的装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
图1是根据一示例性实施例示出的一种指纹识别方法的流程图，该指纹识别方法应用于包括液晶显示屏的电子设备中，该液晶显示屏上分布有指纹识别传感器和接近光传感器，如图1所示，该指纹识别方法包括以下步骤。
在步骤101中，获取用户手指触发的指纹识别指令；
在步骤102中，在接收到指纹识别指令后，确定与手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域；
在步骤103中，根据区域选择部分指纹识别传感器；
在步骤104中，控制选择的部分指纹识别传感器进行指纹识别。
综上所述，本公开提供的指纹识别方法，通过获取用户手指触发的指纹识别指令；在接收到指纹识别指令后，确定与手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域；根据区域选择部分指纹识别传感器；控制选择的部分指纹识别传感器进行指纹识别，可以控制部分指纹识别传感器进行指纹识别，解决了控制整个液晶显示屏上的所有指纹识别传感器进行指纹识别造成资源浪费的问题，达到了节省资源的效果。
图2A是根据另一示例性实施例示出的一种指纹识别方法的流程图，该指纹 识别方法应用于包括液晶显示屏的电子设备中，该液晶显示屏上分布有指纹识别传感器和接近光传感器，如图2A所示，该指纹识别方法包括如下步骤。
在步骤201中，获取用户手指触发的指纹识别指令。
指纹识别指令用于指示电子设备启动指纹识别服务进行指纹识别。指纹识别指令可以是用户在使用应用程序的过程中，通过操作体控制应用程序生成的，电子设备再获取该指纹识别指令；也可以是电子设备通过其他方式获得的，本实施例不限定指纹识别指令的获取方式。
在步骤202中，在接收到指纹识别指令后，确定与手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域。
在接收到指纹识别指令后，用户需要使用手指在液晶显示屏上触发触摸操作，以便电子设备进行指纹识别。在用户的手指靠近液晶显示屏的过程中，接近光传感器的发射端发射的光信号会被手指反射，形成一个反射信号，此时接近光传感器的接收端会接收该反射信号。电子设备可以将接收到反射信号的接收端所属的接近光传感器确定为与手指之间的距离小于预定距离阈值的接近光传感器。
或者，可选的，电子设备还可以根据各个接近光传感器发射光信号到接收到反射信号的时间，计算手指与液晶显示屏之间的距离。
在计算手指与液晶显示屏之间的距离时，可根据公式：s＝c*t/2计算得出。
其中，s为手指与液晶显示屏之间的距离，c为光速3.0×108m/s，t为接近光传感器发射光信号到接收到反射信号的时间。
在实现时，电子设备可以获取根据各个接近光传感器，确定出的手指与液晶显示屏之间的距离，比较确定的各个距离是否小于预定距离阈值，当距离小于预定距离阈值时，说明该接近光传感器存在手指靠近。
本实施例中，电子设备还可以将接收到反射信号的各个接近光传感器的位置组成一个区域。请参考图2B所示的区域示意图，其中，分布在液晶显示屏上的黑点表示接近光传感器，且图2B中的左侧视图表示用户的手指在接近液晶显示屏，图2B中的右侧视图表示手指接近时形成的椭圆形区域。
在步骤203中，根据该区域检测是否是手指与接近光传感器之间的距离小于预定距离阈值；当根据该区域检测出是手指与接近光传感器之间的距离小于预定距离阈值时，触发执行步骤204。
由于触摸操作可能是用户的手指触发的，也可能是诸如手掌之类的其他部位触发的，因此，电子设备需要排除其他部位触发的触摸操作，从而避免启动指纹识别服务来进行指纹识别所造成的资源浪费。
在实现时，电子设备可以计算遮挡区域的面积，检测该面积是否小于预定面积阈值，当该面积小于预定面积阈值时，确定该触摸操作由手指触发；当该面积大于预定面积阈值时，确定该触摸操作不是由手指触发。或者，电子设备可以检测遮挡区域的形状是否是椭圆形，当该形状是椭圆形时，确定该触摸操作由手指触发；当该形状不是椭圆形时，确定该触摸操作不是由手指触发。当然，电子设备还可以通过其他方式检测触摸操作是否由手指触发，本实施例不作限定。
在步骤204中，根据该区域选择部分指纹识别传感器。
由于将手指在接近液晶显示屏的过程中，会导致一个区域内的接近光传感器中的接收端会接收到反射信号，且电子设备需要识别该手指的指纹，因此，电子设备可以根据该区域选择部分指纹识别传感器进行指纹识别，解决了控制整个液晶显示屏上的所有指纹识别传感器进行指纹识别造成资源浪费的问题，达到了节省资源的效果。
其中，本实施例提供了两种根据区域选择部分指纹识别传感器的方法，下面分别对这两种方法进行介绍。
在第一种确定方法中，确定分布在区域内的各个指纹识别传感器。
其中，电子设备可以控制分布在区域内的各个指纹识别传感器进行指纹识别。此时，电子设备可以获取各个指纹识别传感器在液晶显示屏上的坐标，再根据坐标确定分布在区域内的各个指纹识别传感器。
在第二种确定方法中，当指纹识别传感器呈阵列分布在液晶显示屏上时，确定区域所覆盖的列数和行数，以列数为长度、以行数为宽度生成矩形的识别区域，确定分布在识别区域内的各个指纹识别传感器。
由于区域的形状可能是不规则的，电子设备在确定分布在区域内的指纹识别传感器时的计算量较大，因此，电子设备可以先确定包含区域的规则形状的识别区域，再获取各个指纹识别传感器在液晶显示屏上的坐标，再根据坐标确定分布在识别区域内的各个指纹识别传感器。
其中，当指纹识别传感器呈阵列分布在液晶显示屏上时，识别区域可以是 矩形区域，由于矩形区域的长和宽是固定的，因此，电子设备可以很容易确定分布在识别区域内的各个指纹识别传感器。
请参考图2C所示的识别区域的示意图，其中，分布在液晶显示屏上的黑点表示指纹识别传感器，且手指与液晶显示屏的接近区域构成一个椭圆形区域，则分布在该区域内的指纹识别传感器为第4行的第2-3个，第5行的第2-4个，第6行的第3-4个。根据椭圆形区域确定的识别区域为矩形区域，则分布在矩形区域内的指纹识别传感器为第4-6行中每行的第2-4个。
在步骤205中，控制选择的部分指纹识别传感器进行指纹识别。
请参考图2D所示的控制选择的部分指纹识别传感器进行指纹识别的流程图，控制选择的部分指纹识别传感器进行指纹识别，包括：
在步骤2051中，控制部分指纹识别传感器与对应的数据线电性相连；
在步骤2052中，通过数据线对部分指纹识别传感器采集的指纹数据进行输出。
液晶显示屏在确定了指纹识别传感器后，电子设备需要启动这些指纹识别传感器，从而通过这些指纹识别传感器进行指纹识别。其中，启动指纹识别传感器包括初始化指纹识别传感器和通过使能端控制指纹识别传感器与数据线电性相连。
在实现时，控制部分指纹识别传感器与对应的数据线电性相连，包括：初始化所有的指纹识别传感器，并通过使能线控制部分指纹识别传感器与对应的数据线电性相连，其中，每个指纹识别传感器与对应的使能线电性相连。
初始化所有的指纹识别传感器即启动指纹识别服务，控制所有的指纹识别传感器处于空闲状态，等待扫描指令。其中，每个指纹识别传感器的使能端与对应的使能线电性相连，通过在使能线上传输的信号控制指纹识别传感器是否与数据线电性相连，数据线用于传输采集到的指纹数据。
请参考图2E所示的指纹识别传感器的第一种示意图，其中，黑色矩形为指纹识别传感器，横线为使能线，竖线为数据线，每个指纹识别传感器通过一个开关连接到对应的使能线，且未与数据线相连。
请参考图2F所示的指纹识别传感器的第二种示意图，假设电子设备需要控制第二行的指纹识别传感器进行指纹识别，则可以通过在使能线上传输信号控制第二行的各个指纹识别传感器与数据线电性相连。
在指纹识别传感器与数据线电性相连后，电子设备通过扫描指令控制这些指纹识别传感器进行扫描，得到指纹数据，并通过数据线传输这些指纹数据，以便进行指纹识别处理。其中，当指纹识别传感器为电容式指纹识别传感器时，指纹数据为电容值。
需要说明的是，初始化指纹识别传感器的步骤最早可以在步骤201后执行，使得电子设备在确定出指纹识别传感器后，可以通过处于空闲状态的指纹识别传感器直接进行指纹识别，提高指纹识别的效率；或者，该步骤最晚可以在电子设备确定出需要进行指纹识别的指纹识别传感器后执行，从而节省过早开启指纹识别服务所造成的资源浪费。
综上所述，本公开提供的指纹识别方法，通过获取用户手指触发的指纹识别指令；在接收到指纹识别指令后，确定与手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域；根据区域选择部分指纹识别传感器；控制选择的部分指纹识别传感器进行指纹识别，可以控制部分指纹识别传感器进行指纹识别，解决了控制整个液晶显示屏上的所有指纹识别传感器进行指纹识别造成资源浪费的问题，达到了节省资源的效果。
另外，通过，根据该区域检测是否是手指与接近光传感器之间的距离小于预定距离阈值；当根据该区域检测出是手指与接近光传感器之间的距离小于预定距离阈值时，根据该区域选择部分指纹识别传感器，可以先通过接近光传感器确定是手指与液晶显示屏接触，再启动指纹识别服务，从而避免过早启动指纹识别服务来进行指纹识别，造成资源浪费的问题，达到了节省资源的效果。
图3是根据一示例性实施例示出的一种指纹识别装置的框图，该指纹识别装置应用于包括液晶显示屏的电子设备中，该液晶显示屏上分布有指纹识别传感器和接近光传感器，如图3所示，该指纹识别装置包括：获取模块310、确定模块320、选择模块330和识别模块340。
该获取模块310，被配置为获取用户手指触发的指纹识别指令；
该确定模块320，被配置为在接收到获取模块310获取的指纹识别指令后，确定与手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域；
该选择模块330，被配置为根据确定模块320确定的区域选择部分指纹识别传感器；
该识别模块340，被配置为控制选择模块330选择的部分指纹识别传感器进行指纹识别。
综上所述，本公开提供的指纹识别装置，通过获取用户手指触发的指纹识别指令；在接收到指纹识别指令后，确定与手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域；根据区域选择部分指纹识别传感器；控制选择的部分指纹识别传感器进行指纹识别，可以控制部分指纹识别传感器进行指纹识别，解决了控制整个液晶显示屏上的所有指纹识别传感器进行指纹识别造成资源浪费的问题，达到了节省资源的效果。
图4是根据一示例性实施例示出的一种指纹识别装置的框图，该指纹识别装置应用于包括液晶显示屏的电子设备中，该液晶显示屏上分布有指纹识别传感器和接近光传感器，如图4所示，该指纹识别装置包括：获取模块410、确定模块420、选择模块430和识别模块440。
该获取模块410，被配置为获取用户手指触发的指纹识别指令；
该确定模块420，被配置为在接收到获取模块410获取的指纹识别指令后，确定与手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域；
该选择模块430，被配置为根据确定模块420确定的区域选择部分指纹识别传感器；
该识别模块440，被配置为控制选择模块430选择的部分指纹识别传感器进行指纹识别。
可选的，确定模块420，包括：第一确定子模块421和第二确定子模块422。
该第一确定子模块421，被配置为在接收到指纹识别指令后，确定接收到反射信号的各个接收端所属的接近光传感器，反射信号是接近光传感器中的发射端发射的光信号被手指反射后得到的信号；
该第二确定子模块422，被配置为将第一确定子模块421确定的接近光传感器的位置所组成的区域确定为区域。
可选的，该确定模块420，还包括：区域检测子模块423和操作触发子模块424；
该区域检测子模块423，被配置为根据第二确定子模块423确定的区域检测是否是手指与接近光传感器之间的距离小于预定距离阈值；
该操作触发子模块424，被配置为当区域检测子模块423检测的结果为手指与接近光传感器之间的距离小于预定距离阈值时，触发选择模块430执行对应的操作。
可选的，选择模块430，包括：第一选择子模块431、第二选择子模块432。
该第一选择子模块431，被配置为确定分布在区域内的各个指纹识别传感器；或者，
该第二选择子模块432，被配置为当指纹识别传感器呈阵列分布在液晶显示屏上时，确定区域所覆盖的列数和行数，以列数为长度、以行数为宽度生成矩形的识别区域，确定分布在识别区域内的各个指纹识别传感器。
可选的，识别模块440，包括：连接控制子模块441和指纹输出子模块442；
该连接控制子模块441，被配置为控制部分指纹识别传感器与对应的数据线电性相连；
该指纹输出子模块442，被配置为通过数据线对部分指纹识别传感器采集的指纹数据进行输出。
可选的，连接控制子模块441，还被配置为：
初始化所有的指纹识别传感器，并通过使能线控制部分指纹识别传感器与对应的数据线电性相连，其中，每个指纹识别传感器与对应的使能线电性相连。
综上所述，本公开提供的指纹识别装置，通过获取用户手指触发的指纹识别指令；在接收到指纹识别指令后，确定与手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域；根据区域选择部分指纹识别传感器；控制选择的部分指纹识别传感器进行指纹识别，可以控制部分指纹识别传感器进行指纹识别，解决了控制整个液晶显示屏上的所有指纹识别传感器进行指纹识别造成资源浪费的问题，达到了节省资源的效果。
另外，通过，根据该区域检测是否是手指与接近光传感器之间的距离小于预定距离阈值；当根据该区域检测出是手指与接近光传感器之间的距离小于预定距离阈值时，根据该区域选择部分指纹识别传感器，可以先通过接近光传感器确定是手指与液晶显示屏接触，再启动指纹识别服务，从而避免过早启动指纹识别服务来进行指纹识别，造成资源浪费的问题，达到了节省资源的效果。
本公开一示例性实施例提供了一种指纹识别装置，能够实现本公开提供的 指纹识别方法，该指纹识别装置用于电子设备中，包括：液晶显示屏，液晶显示屏上分布有指纹识别传感器和接近光传感器；处理器、用于存储处理器可执行指令的存储器；
其中，处理器被配置为：
获取用户手指触发的指纹识别指令；
在接收到指纹识别指令后，确定与手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域；
根据区域选择部分指纹识别传感器；
控制选择的部分指纹识别传感器进行指纹识别。
图5是根据一示例性实施例示出的一种用于指纹识别的装置500的框图。例如，装置500可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图5，装置500可以包括以下一个或多个组件：处理组件502，存储器504，电源组件506，多媒体组件508，音频组件510，输入/输出(I/O)的接口512，传感器组件514，以及通信组件516。
处理组件502通常控制装置500的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件502可以包括一个或多个处理器518来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件502可以包括一个或多个模块，便于处理组件502和其他组件之间的交互。例如，处理组件502可以包括多媒体模块，以方便多媒体组件508和处理组件502之间的交互。
存储器504被配置为存储各种类型的数据以支持在装置500的操作。这些数据的示例包括用于在装置500上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器504可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件506为装置500的各种组件提供电力。电源组件506可以包括电 源管理系统，一个或多个电源，及其他与为装置500生成、管理和分配电力相关联的组件。
多媒体组件508包括在所述装置500和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为液晶显示屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件508包括一个前置摄像头和/或后置摄像头。当装置500处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件510被配置为输出和/或输入音频信号。例如，音频组件510包括一个麦克风(MIC)，当装置500处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器504或经由通信组件516发送。在一些实施例中，音频组件510还包括一个扬声器，用于输出音频信号。
I/O接口512为处理组件502和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件514包括一个或多个传感器，用于为装置500提供各个方面的状态评估。例如，传感器组件514可以检测到装置500的打开/关闭状态，组件的相对定位，例如所述组件为装置500的显示器和小键盘，传感器组件514还可以检测装置500或装置500一个组件的位置改变，用户与装置500接触的存在或不存在，装置500方位或加速/减速和装置500的温度变化。传感器组件514可以包括接近光传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件514还可以包括接近光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。传感器组件514还可以包括指纹识别传感器，被配置用来识别指纹。在一些实施例中，该传感器组件514还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件516被配置为便于装置500和其他设备之间有线或无线方式的通信。装置500可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件516经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件516还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置500可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器504，上述指令可由装置500的处理器518执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
本领域技术人员在考虑说明书及实践这里的公开后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (13)

  1. 一种指纹识别方法，用于包括液晶显示屏的电子设备中，所述液晶显示屏上分布有指纹识别传感器和接近光传感器，其特征在于，所述方法包括：
    获取用户手指触发的指纹识别指令；
    在接收到所述指纹识别指令后，确定与所述手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域；
    根据所述区域选择部分指纹识别传感器；
    控制选择的所述部分指纹识别传感器进行指纹识别。
  2. 根据权利要求1所述的方法，其特征在于，所述在接收到所述指纹识别指令后，确定与所述手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域，包括：
    在接收到所述指纹识别指令后，确定接收到反射信号的各个接收端所属的接近光传感器，所述反射信号是所述接近光传感器中的发射端发射的光信号被所述手指反射后得到的信号；
    将所述接近光传感器的位置所组成的区域确定为所述区域。
  3. 根据权利要求2所述的方法，其特征在于，所述在接收到所述指纹识别指令后，确定与所述手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域，还包括：
    根据所述区域检测是否是所述手指与所述接近光传感器之间的距离小于所述预定距离阈值；
    当根据所述区域检测出是所述手指与所述接近光传感器之间的距离小于所述预定距离阈值时，触发执行所述根据所述区域选择部分指纹识别传感器的步骤。
  4. 根据权利要求1所述的方法，其特征在于，所述根据所述区域选择部分指纹识别传感器，包括：
    确定分布在所述区域内的各个指纹识别传感器；或者，
    当所述指纹识别传感器呈阵列分布在所述液晶显示屏上时，确定所述区域所覆盖的列数和行数，以所述列数为长度、以所述行数为宽度生成矩形的识别区域，确定分布在所述识别区域内的各个指纹识别传感器。
  5. 根据权利要求1至4任一所述的方法，其特征在于，所述控制选择的所述部分指纹识别传感器进行指纹识别，包括：
    控制所述部分指纹识别传感器与对应的数据线电性相连；
    通过所述数据线对所述部分指纹识别传感器采集的指纹数据进行输出。
  6. 根据权利要求5所述的方法，其特征在于，所述控制所述部分指纹识别传感器与对应的数据线电性相连，包括：
    初始化所有的指纹识别传感器，并通过使能线控制所述部分指纹识别传感器与对应的数据线电性相连，其中，每个指纹识别传感器与对应的使能线电性相连。
  7. 一种指纹识别装置，用于包括液晶显示屏的电子设备中，所述液晶显示屏上分布有指纹识别传感器和接近光传感器，其特征在于，所述装置包括：
    获取模块，被配置为获取用户手指触发的指纹识别指令；
    确定模块，被配置为在接收到所述获取模块获取的所述指纹识别指令后，确定与所述手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域；
    选择模块，被配置为根据所述确定模块确定的所述区域选择部分指纹识别传感器；
    识别模块，被配置为控制所述选择模块选择的所述部分指纹识别传感器进行指纹识别。
  8. 根据权利要求7所述的装置，其特征在于，所述确定模块，包括：
    第一确定子模块，被配置为在接收到所述指纹识别指令后，确定接收到反射信号的各个接收端所属的接近光传感器，所述反射信号是所述接近光传感器中的发射端发射的光信号被所述手指反射后得到的信号；
    第二确定子模块，被配置为将所述第一确定子模块确定的所述接近光传感器的位置所组成的区域确定为所述区域。
  9. 根据权利要求8所述的装置，其特征在于，所述确定模块，还包括：
    区域检测子模块，被配置为根据所述第二确定子模块确定的所述区域检测是否是所述手指与所述接近光传感器之间的距离小于所述预定距离阈值；
    操作触发子模块，被配置为当所述区域检测子模块检测的结果为所述手指与所述接近光传感器之间的距离小于所述预定距离阈值时，触发所述选择模块执行对应的操作。
  10. 根据权利要求7所述的装置，其特征在于，所述选择模块，包括：
    第一选择子模块，被配置为确定分布在所述区域内的各个指纹识别传感器；或者，
    第二选择子模块，被配置为当所述指纹识别传感器呈阵列分布在所述液晶显示屏上时，确定所述区域所覆盖的列数和行数，以所述列数为长度、以所述行数为宽度生成矩形的识别区域，确定分布在所述识别区域内的各个指纹识别传感器。
  11. 根据权利要求7至10任一所述的装置，其特征在于，所述识别模块，包括：
    连接控制子模块，被配置为控制所述部分指纹识别传感器与对应的数据线电性相连；
    指纹输出子模块，被配置为通过所述数据线对所述部分指纹识别传感器采集的指纹数据进行输出。
  12. 根据权利要求11所述的装置，其特征在于，所述连接控制子模块，还被配置为：
    初始化所有的指纹识别传感器，并通过使能线控制所述部分指纹识别传感器与对应的数据线电性相连，其中，每个指纹识别传感器与对应的使能线电性相连。
  13. 一种指纹识别装置，其特征在于，所述装置包括：
    液晶显示屏，所述液晶显示屏上分布有指纹识别传感器和接近光传感器；
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：
    获取用户手指触发的指纹识别指令；
    在接收到所述指纹识别指令后，确定与所述手指之间的距离小于预定距离阈值的各个接近光传感器组成的区域；
    根据所述区域选择部分指纹识别传感器；
    控制选择的所述部分指纹识别传感器进行指纹识别。
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