CN110197159B - Fingerprint acquisition method and terminal - Google Patents
Fingerprint acquisition method and terminal Download PDFInfo
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- CN110197159B CN110197159B CN201910469923.4A CN201910469923A CN110197159B CN 110197159 B CN110197159 B CN 110197159B CN 201910469923 A CN201910469923 A CN 201910469923A CN 110197159 B CN110197159 B CN 110197159B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
- G06V10/12—Details of acquisition arrangements; Constructional details thereof
- G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
- G06V10/141—Control of illumination
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
Abstract
The invention provides a fingerprint acquisition method and a terminal, wherein the terminal comprises a screen and a photoelectric fingerprint sensor arranged below the screen, and the fingerprint acquisition method comprises the following steps: controlling at least part of the screen to display at a target brightness under the condition that the fingerprint input operation is monitored; collecting fingerprint information through the photoelectric fingerprint sensor; and the target brightness is determined according to the skin color of the finger to which the fingerprint image to be compared belongs. Therefore, the scheme of the invention solves the problem that the fingerprint identification rate is low due to the fact that the existing photoelectric fingerprint collection technology adopts fixed screen luminous brightness.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to a fingerprint acquisition method and a terminal.
Background
The mobile terminal has evolved from a simple traditional communication tool to a platform carrying numerous functions such as mobile applications, mobile content, value-added services, etc., so user privacy is of particular importance. With the continuous progress of technology, the biometric identification is gradually introduced into the mobile terminal, and the biometric identification applied to the mobile terminal on the market mainly has fingerprints. The existing fingerprint identification technology comprises capacitive fingerprint identification, ultrasonic fingerprint identification and photoelectric fingerprint identification.
The capacitive fingerprint identification capacitive fingerprint module forms an electric field by utilizing a fingerprint sensor and conductive subcutaneous electrolyte, and the pressure difference between the fingerprint sensor and the conductive subcutaneous electrolyte is changed differently due to the fluctuation of the fingerprint, so that accurate fingerprint measurement can be realized.
Ultrasonic fingerprint identification utilizes the ability that ultrasonic wave has the penetrating material, and produces the echo of variation in size (when ultrasonic wave reachs different material surfaces, is absorbed, is penetrated and the degree of reflection is different) along with the difference of material, utilizes skin and air to the difference of sound wave impedance, just can distinguish the position that fingerprint ridge and valley were located thereby realize fingerprint identification.
The photoelectric fingerprint identification mainly utilizes the refraction and reflection principle of light, the light is emitted to a prism from the bottom and is emitted out through the prism, the refraction angle of the emitted light on uneven lines of fingerprints on the surface of a finger and the brightness of the reflected light are different, and therefore a Complementary Metal-Oxide-Semiconductor (CMOS) optical device collects picture information with different brightness degrees, and fingerprint collection is completed.
In addition, the screen occupation ratio is extremely high in the full screen era, and the high screen occupation ratio cannot be realized when the capacitive fingerprint is used for front fingerprint identification, so that the appearance expressive force is limited; the ultrasonic fingerprint needs ultrahigh pressure to drive an ultrasonic transmitter, a plurality of peripheral devices are required, the assembly process is complex, the cost is high, and the influence of temperature is large; compared with the prior art, the photoelectric fingerprint circuit is fully integrated, has few peripheral devices and is convenient to assemble and produce.
However, the current photoelectric fingerprint collection technology adopts a fixed screen light-emitting brightness, and the fingerprint identification rate is low.
Disclosure of Invention
The embodiment of the invention provides a fingerprint acquisition method and a terminal, which aim to solve the problem that the fingerprint identification rate is low due to the fact that the existing photoelectric fingerprint acquisition technology adopts fixed screen luminous brightness.
In a first aspect, an embodiment of the present invention provides a fingerprint acquisition method, which is applied to a terminal, where the terminal includes a screen and a photoelectric fingerprint sensor disposed below the screen, and the fingerprint acquisition method includes:
controlling at least part of the screen to display at a target brightness under the condition that the fingerprint input operation is monitored;
collecting fingerprint information through the photoelectric fingerprint sensor;
and the target brightness is determined according to the skin color of the finger to which the fingerprint image to be compared belongs.
In a second aspect, an embodiment of the present invention provides a terminal, including a screen and an optoelectronic fingerprint sensor disposed below the screen, the terminal further including:
the screen brightness adjusting module is used for controlling at least part of the screen to display at target brightness under the condition that the fingerprint input operation is monitored;
the fingerprint acquisition module is used for acquiring fingerprint information through the photoelectric fingerprint sensor;
and the target brightness is determined according to the skin color of the finger to which the fingerprint image to be compared belongs.
In a third aspect, an embodiment of the present invention provides a terminal, including a memory, a processor, and a computer program stored on the memory and executable on the processor; the processor implements the fingerprint acquisition method when executing the program.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps in the fingerprint acquisition method described above.
The embodiment of the invention has the beneficial effects that:
according to the embodiment of the invention, the brightness of at least part of the screen can be adjusted according to the skin color of the finger of the user, so that the fingers with different skin colors can reflect enough light, the photoelectric fingerprint sensor can capture clear fingerprint information, the success rate of fingerprint identification is improved, and the experience of fingerprint identification of the user is improved. And moreover, the brightness of the screen is adjusted based on the skin color of the user, so that the power consumption of the whole terminal is saved, and the endurance time of the terminal is prolonged.
Drawings
FIG. 1 shows a flow chart of a fingerprint acquisition method according to an embodiment of the invention;
FIG. 2 is a schematic diagram illustrating an arrangement position between the photoelectric fingerprint sensor and a terminal screen according to an embodiment of the invention;
fig. 3 shows a block diagram of a terminal according to an embodiment of the invention;
fig. 4 is a schematic diagram of a hardware configuration of a terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a fingerprint acquisition method, which is applied to a terminal, wherein the terminal comprises a screen and a photoelectric fingerprint sensor arranged below the screen, and as shown in figure 1, the fingerprint acquisition method comprises the following steps:
step 101: and controlling at least part of the screen to be displayed at the target brightness under the condition that the fingerprint input operation is monitored.
And the target brightness is determined according to the skin color of the finger to which the fingerprint image to be compared belongs. The fingerprint image to be compared is the fingerprint information stored in the terminal. Different users have different fingerprint information, so the fingerprint image to be compared stored in the terminal also corresponds to the user to which the fingerprint image belongs. For example, a common user of a terminal is generally a user, fingerprint information of the user is stored in the terminal, and when the terminal collects the fingerprint information, at least part of a screen is displayed by default with screen brightness corresponding to skin color of a finger to which a fingerprint image to be compared belongs.
In addition, the absorption rate of the object surface with different colors to light is different, and the reflectivity is also different. At the same test distance, the absorbance is highest for black and lowest for white. However, the skin colors of the users of the terminal are different, some users have white skin colors (such as white race), some users have black skin colors (such as black race), and therefore, the light reflectivity of fingers of different users is different, so that the brightness of the screen used by the user with white skin color is smaller, and the brightness of the screen used by the user with black skin color is larger under the condition that the photoelectric fingerprint sensor receives the same light reflection energy. According to the embodiment of the invention, the brightness of the screen can be adjusted according to the skin color of the finger of the user, so that the fingers with different skin colors can reflect enough light, the photoelectric fingerprint sensor can capture clear fingerprint information, the success rate of fingerprint identification is improved, and the experience of fingerprint identification of the user is improved.
In addition, under the condition that the fingerprint input operation is monitored, only part of the whole screen can be adjusted to display at the first target brightness, and the whole screen can be directly adjusted to display at the second target brightness. When the brightness of a part of the screen is adjusted when a fingerprint input operation is monitored, a target area (for example, a circular area or a rectangular area) on the screen can be planned in advance, and when the fingerprint input operation is monitored, the screen in the target area can be adjusted to display at the target brightness. In addition, the position of the target area may also be adjusted according to the actual operation of the user, for example, if the boundary of the target area is displayed on the screen, the position of the target area is moved according to the preset operation in response to the preset operation when the preset operation on the boundary is detected.
Step 102: and fingerprint information is collected through the photoelectric fingerprint sensor.
As shown in fig. 2, the photoelectric fingerprint sensor is attached below the screen, and light emitted from the screen 202 is reflected by a finger after passing through the glass cover plate 201, passes through the screen 202 and the lens 204 of the photoelectric fingerprint sensor, and enters the image sensor 203 of the photoelectric fingerprint sensor for imaging, thereby completing the fingerprint identification process.
Therefore, according to the embodiment of the invention, the brightness of at least part of the screen can be adjusted according to the skin color of the finger of the user, so that the fingers with different skin colors can reflect enough light, the photoelectric fingerprint sensor can capture clear fingerprint information, the success rate of fingerprint identification is improved, and the experience of fingerprint identification of the user is improved. And moreover, the brightness of the screen is adjusted based on the skin color of the user, so that the power consumption of the whole terminal is saved, and the endurance time of the terminal is prolonged.
Optionally, before controlling at least a part of the screen to be displayed at a target brightness in a case where the fingerprint input operation is monitored, the method further includes:
acquiring the fingerprint image to be compared;
determining the skin color grade of the finger to which the fingerprint image to be compared belongs;
and determining the target brightness according to the corresponding relation between the predetermined skin color grade of the finger and the screen brightness.
Therefore, the corresponding relation between the skin color grade of the finger and the screen brightness is stored in the terminal in advance, so that after the fingerprint image to be compared is obtained and the skin color grade of the finger to which the fingerprint image to be compared belongs is determined, table lookup can be carried out in the corresponding relation, and the screen brightness corresponding to the skin color of the finger to which the fingerprint image to be compared belongs is determined. Therefore, when fingerprint collection is carried out, the control screen can be used for displaying with proper brightness, the phenomenon that the brightness is larger or smaller is avoided, the success rate of fingerprint identification is improved, and power consumption is saved.
The corresponding relation between the skin color grade of the finger and the screen brightness is determined by training a large number of fingerprint samples. The method can be specifically determined according to the following processes:
firstly, determining the definition Q of a photoelectric fingerprint image according to the fingerprint identification performance requirement;
secondly, selecting a user with a large sample number, dividing the skin color of the finger into n grades, and marking each grade as Fn;
and thirdly, under the same test condition, actually measuring the brightness of the screen when the fingerprint image definition is Q under each finger skin color.
Through the steps, the corresponding relation between the skin color grade of the finger and the screen brightness can be established, and the database G (Fn: Dn) can be obtained.
Optionally, the acquiring the fingerprint image to be compared includes:
when a fingerprint image to be compared is recorded for the first time, controlling the screen of the indication part to display at the predetermined screen brightness;
and acquiring fingerprint information through the photoelectric fingerprint sensor to obtain the fingerprint image to be compared.
When a user inputs a fingerprint for the first time, at least part of a screen is displayed at fixed brightness, so that a photoelectric fingerprint sensor acquires fingerprint information under the irradiation of the screen with the fixed brightness, the grade Fn of the skin color of a finger of the user is judged through photoelectric imaging preview calculation, then a database G (Fn: Dn) is traversed, the corresponding screen brightness Dn is selected, the Dn is written into a software parameter of the screen brightness required in the subsequent fingerprint identification process, the skin color grade of the finger does not need to be identified any more during the subsequent fingerprint identification, and the configured screen brightness is called by default when the user starts the fingerprint identification.
Optionally, before collecting fingerprint information by the photoelectric fingerprint sensor, the method further includes:
detecting the intensity of ambient light;
the method comprises the steps of detecting that the ambient light intensity is smaller than a preset threshold value, starting a light supplement lamp arranged on a terminal, wherein the light supplement lamp faces towards a screen and is located below the screen.
Wherein, the light filling lamp is opened, can be less than under the condition of predetermineeing the threshold value at external environment light intensity, together provide required light for photoelectric fingerprint sensor with the screen that lights to further promote the fingerprint identification success rate, improve user's fingerprint identification and experience.
Further, after collecting fingerprint information by the photoelectric fingerprint sensor, the method further comprises:
and turning off the light supplement lamp.
The light filling lamp is timely closed after fingerprint information is collected through a photoelectric fingerprint sensor of the terminal based on the opened light filling lamp and a screen displaying the target brightness, so that the electric quantity waste is avoided, the power consumption of the whole terminal is saved, and the endurance time of the terminal is prolonged.
In summary, in the embodiments of the present invention, based on the light reflection technology, in view of the fact that the light reflectivity is affected by skin color, and the reflection/absorption efficiency of different skin colors to light is different, the luminance of the screen is adjusted based on the skin color of the user, so as to ensure that fingers with different skin colors can reflect enough light, so that the photoelectric fingerprint sensor can capture clear fingerprint features of the user, improve the success rate of fingerprint identification, and improve the experience of fingerprint identification of the user. Meanwhile, the brightness of the screen is adjusted based on the skin color of the user (the success rate of fingerprint identification is ensured by the most reasonable brightness), the power consumption of the whole mobile terminal is saved, and the endurance time of the mobile terminal is prolonged.
An embodiment of the present invention further provides a terminal, including a screen and a photoelectric fingerprint sensor disposed below the screen, as shown in fig. 3, the terminal 300 further includes:
the screen brightness adjusting module 301 is configured to control at least part of the screen to display at a target brightness when a fingerprint input operation is monitored;
a fingerprint collecting module 302, configured to collect fingerprint information through the photoelectric fingerprint sensor;
and the target brightness is determined according to the skin color of the finger to which the fingerprint image to be compared belongs.
Optionally, the terminal further includes:
the comparison image acquisition module is used for acquiring the fingerprint image to be compared;
the skin color grade determining module is used for determining the skin color grade of the finger to which the fingerprint image to be compared belongs;
and the target brightness determining module is used for determining the target brightness according to the corresponding relation between the predetermined skin color grade of the finger and the screen brightness.
Optionally, the to-be-compared image obtaining module includes:
the screen brightness adjusting unit is used for controlling at least part of the screen to display at the predetermined screen brightness when the fingerprint image to be compared is recorded for the first time;
and the fingerprint acquisition unit is used for acquiring fingerprint information through the photoelectric fingerprint sensor to obtain the fingerprint image to be compared.
Optionally, the terminal further includes:
the light intensity detection module is used for detecting the intensity of ambient light;
the first control module is used for starting the light supplement lamp arranged on the terminal under the condition that the ambient light intensity is smaller than a preset threshold value, wherein the light supplement lamp faces towards the screen and is arranged below the screen.
Optionally, the terminal further includes:
and the second control module is used for turning off the light supplementing lamp.
As can be seen from the above, the terminal 400 according to the embodiment of the present invention can adjust the brightness of at least a portion of the screen according to the skin color of the finger of the user, so that the fingers with different skin colors can reflect enough light, and further the photoelectric fingerprint sensor can capture clear fingerprint information, thereby improving the success rate of fingerprint identification and improving the experience of fingerprint identification of the user. And moreover, the brightness of the screen is adjusted based on the skin color of the user, so that the power consumption of the whole terminal is saved, and the endurance time of the terminal is prolonged.
An embodiment of the present invention further provides a terminal, as shown in fig. 4, where the terminal 400 includes, but is not limited to: radio frequency unit 401, network module 402, audio output unit 403, input unit 404, sensor 404, display unit 406, user input unit 407, interface unit 408, memory 409, processor 410, and power supply 411. Wherein the sensor 405 comprises an electro-optical fingerprint sensor. The display unit 406 includes a screen. The photoelectric sensor is arranged below the screen. Those skilled in the art will appreciate that the terminal configuration shown in fig. 4 is not intended to be limiting, and that the terminal may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
Wherein the processor 410 is configured to control at least a portion of the screen to be displayed at a target brightness in a case where a fingerprint input operation is monitored; collecting fingerprint information through the photoelectric fingerprint sensor; and the target brightness is determined according to the skin color of the finger to which the fingerprint image to be compared belongs.
Therefore, the terminal 400 according to the embodiment of the present invention can adjust the brightness of at least a portion of the screen according to the skin color of the finger of the user, so that the fingers with different skin colors can reflect enough light, and further the photoelectric fingerprint sensor can capture clear fingerprint information, thereby improving the success rate of fingerprint identification and improving the experience of fingerprint identification of the user. And moreover, the brightness of the screen is adjusted based on the skin color of the user, so that the power consumption of the whole terminal is saved, and the endurance time of the terminal is prolonged.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 401 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 410; in addition, the uplink data is transmitted to the base station. Typically, radio unit 401 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. Further, the radio unit 401 can also communicate with a network and other devices through a wireless communication system.
The terminal provides wireless broadband internet access to the user through the network module 402, such as helping the user send and receive e-mails, browse web pages, and access streaming media.
The audio output unit 403 may convert audio data received by the radio frequency unit 401 or the network module 402 or stored in the memory 409 into an audio signal and output as sound. Also, the audio output unit 403 may also provide audio output related to a specific function performed by the terminal 400 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 403 includes a speaker, a buzzer, a receiver, and the like.
The input unit 404 is used to receive audio or video signals. The input Unit 404 may include a Graphics Processing Unit (GPU) 4041 and a microphone 4042, and the Graphics processor 4041 processes image data of a still picture or video obtained by an image capturing apparatus (such as a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 406. The image frames processed by the graphic processor 4041 may be stored in the memory 409 (or other storage medium) or transmitted via the radio frequency unit 401 or the network module 402. The microphone 4042 may receive sound, and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 401 in case of the phone call mode.
The terminal 400 also includes at least one sensor 405, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that adjusts the brightness of the display panel 4061 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 4061 and/or a backlight when the terminal 400 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 405 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which will not be described in detail herein.
The display unit 406 is used to display information input by the user or information provided to the user. The Display unit 406 may include a Display panel 4061 (i.e., a screen), and the Display panel 4061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 407 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 407 includes a touch panel 4071 and other input devices 4072. Touch panel 4071, also referred to as a touch screen, may collect touch operations by a user on or near it (e.g., operations by a user on or near touch panel 4071 using a finger, a stylus, or any suitable object or attachment). The touch panel 4071 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 410, receives a command from the processor 410, and executes the command. In addition, the touch panel 4071 can be implemented by using various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 4071, the user input unit 407 may include other input devices 4072. Specifically, the other input devices 4072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 4071 can be overlaid on the display panel 4061, and when the touch panel 4071 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 410 to determine the type of the touch event, and then the processor 410 provides a corresponding visual output on the display panel 4061 according to the type of the touch event. Although in fig. 4, the touch panel 4071 and the display panel 4061 are two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 4071 and the display panel 4061 may be integrated to implement the input and output functions of the terminal, which is not limited herein.
The interface unit 408 is an interface for connecting an external device to the terminal 400. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 408 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 400 or may be used to transmit data between the terminal 400 and an external device.
The memory 409 may be used to store software programs as well as various data. The memory 409 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 409 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 410 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 409 and calling data stored in the memory 409, thereby integrally monitoring the terminal. Processor 410 may include one or more processing units; preferably, the processor 410 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 410.
The terminal 400 may further include a power supply 411 (e.g., a battery) for supplying power to various components, and preferably, the power supply 411 may be logically connected to the processor 410 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system.
In addition, the terminal 400 includes some functional modules that are not shown, and are not described in detail herein.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the fingerprint acquisition method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A fingerprint collection method is applied to a terminal, the terminal comprises a screen and a photoelectric fingerprint sensor arranged below the screen, and the fingerprint collection method comprises the following steps:
controlling at least part of the screen to display at a target brightness under the condition that the fingerprint input operation is monitored;
collecting fingerprint information through the photoelectric fingerprint sensor;
the target brightness is determined according to the skin color of the finger to which the fingerprint image to be compared belongs;
before controlling at least part of the screen to be displayed at a target brightness in the case that the fingerprint input operation is monitored, the method further includes:
acquiring the fingerprint image to be compared;
determining the skin color grade of the finger to which the fingerprint image to be compared belongs;
and determining the target brightness according to the corresponding relation between the predetermined skin color grade of the finger and the screen brightness.
2. The fingerprint acquisition method according to claim 1, wherein the acquiring the fingerprint image to be compared comprises:
when a fingerprint image to be compared is recorded for the first time, controlling at least part of the screen to display at a predetermined screen brightness;
and acquiring fingerprint information through the photoelectric fingerprint sensor to obtain the fingerprint image to be compared.
3. The fingerprint acquisition method according to claim 1, wherein before acquiring fingerprint information by the photoelectric fingerprint sensor, the method further comprises:
detecting the intensity of ambient light;
the method comprises the steps of detecting that the ambient light intensity is smaller than a preset threshold value, starting a light supplement lamp arranged on a terminal, wherein the light supplement lamp faces towards a screen and is located below the screen.
4. The fingerprint acquisition method of claim 3, wherein after acquiring fingerprint information by the electro-optical fingerprint sensor, the method further comprises:
and turning off the light supplement lamp.
5. The utility model provides a terminal, its characterized in that includes the screen and sets up the photoelectricity fingerprint sensor in the screen below, the terminal still includes:
the screen brightness adjusting module is used for controlling at least part of the screen to display at target brightness under the condition that the fingerprint input operation is monitored;
the fingerprint acquisition module is used for acquiring fingerprint information through the photoelectric fingerprint sensor;
the target brightness is determined according to the skin color of the finger to which the fingerprint image to be compared belongs;
the comparison image acquisition module is used for acquiring the fingerprint image to be compared;
the skin color grade determining module is used for determining the skin color grade of the finger to which the fingerprint image to be compared belongs;
and the target brightness determining module is used for determining the target brightness according to the corresponding relation between the predetermined skin color grade of the finger and the screen brightness.
6. The terminal according to claim 5, wherein the module for obtaining the images to be compared comprises:
the screen brightness adjusting unit is used for controlling at least part of the screen to display at the predetermined screen brightness when the fingerprint image to be compared is recorded for the first time;
and the fingerprint acquisition unit is used for acquiring fingerprint information through the photoelectric fingerprint sensor to obtain the fingerprint image to be compared.
7. The terminal of claim 5, further comprising:
the light intensity detection module is used for detecting the intensity of ambient light;
the first control module is used for starting the light supplement lamp arranged on the terminal under the condition that the ambient light intensity is smaller than a preset threshold value, wherein the light supplement lamp faces towards the screen and is arranged below the screen.
8. The terminal of claim 7, further comprising:
and the second control module is used for turning off the light supplementing lamp.
9. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor; characterized in that the processor, when executing the program, implements the fingerprinting method according to any one of claims 1 to 4.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the fingerprint acquisition method according to any one of claims 1 to 4.
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| CN111783747B (en) * | 2020-08-10 | 2024-02-20 | Oppo（重庆）智能科技有限公司 | Fingerprint acquisition method and device, storage medium and electronic equipment |
| CN112016426B (en) * | 2020-08-20 | 2023-11-21 | 深圳市锐尔觅移动通信有限公司 | Fingerprint acquisition method and device |
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| JP2006092137A (en) * | 2004-09-22 | 2006-04-06 | Konica Minolta Photo Imaging Inc | Image processing method, image processor, imaging device and image processing program |
| CN1713738A (en) * | 2005-08-03 | 2005-12-28 | 钰创科技股份有限公司 | Displaying system of video signal |
| CN104320578B (en) * | 2014-10-22 | 2018-07-10 | 厦门美图之家科技有限公司 | A kind of method that self-timer sheen compensation is carried out based on screen intensity |
| CN105827977B (en) * | 2016-04-27 | 2019-01-04 | 广东欧珀移动通信有限公司 | A kind of self-timer method, device and mobile terminal |
| CN107945754A (en) * | 2017-11-20 | 2018-04-20 | 上海与德科技有限公司 | Adjusting method, electronic equipment and the computer-readable recording medium of screen intensity |
| CN108040290A (en) * | 2017-12-22 | 2018-05-15 | 四川长虹电器股份有限公司 | TV programme based on AR technologies are changed face method in real time |
| CN108510962B (en) * | 2018-03-29 | 2020-11-20 | 联想(北京)有限公司 | Display control method and electronic equipment |
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