CN108280431B - Face recognition processing method, face recognition processing device and intelligent terminal - Google Patents
Face recognition processing method, face recognition processing device and intelligent terminal Download PDFInfo
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- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
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Abstract
The application provides a face recognition processing method, a face recognition processing device, an intelligent terminal and a computer readable storage medium, wherein the face recognition processing method comprises the following steps: in the face recognition process of the intelligent terminal, detecting whether the illumination intensity of the environment where the intelligent terminal is located is lower than a preset intensity threshold value; if the illumination intensity of the environment where the intelligent terminal is located is lower than the intensity threshold, determining a current face display area, wherein the face display area is an area where a face appears in a screen of the intelligent terminal; and performing light supplement processing on the face display area. According to the technical scheme, the face recognition success rate of the intelligent terminal can be improved under the scene of insufficient ambient light.
Description
Technical Field
The application belongs to the technical field of intelligent terminals, and particularly relates to a face recognition processing method, a face recognition processing device, an intelligent terminal and a computer readable storage medium.
Background
With the development of the mobile internet, the social openness is increasing, and a user can do many things through an intelligent terminal (such as a mobile phone and a tablet computer), and meanwhile, it is increasingly important to perform security protection on the intelligent terminal.
As a new identification technology, a face recognition technology has been applied to an intelligent terminal to achieve security protection of the intelligent terminal. However, the face recognition technology has a high requirement on the definition of the face captured by the intelligent terminal, and the current intelligent terminal is difficult to capture the clear face in a scene with insufficient ambient light, so that the face recognition success rate of the current intelligent terminal is low in the scene with insufficient ambient light.
Disclosure of Invention
In view of this, the present application provides a face recognition processing method, a face recognition processing apparatus, and an intelligent terminal, which can improve the face recognition success rate of the intelligent terminal in a scene with insufficient ambient light.
A first aspect of an embodiment of the present application provides a face recognition processing method, including:
in the face recognition process of the intelligent terminal, detecting whether the illumination intensity of the environment where the intelligent terminal is located is lower than a preset intensity threshold value;
if the illumination intensity of the environment where the intelligent terminal is located is lower than the intensity threshold, determining a current face display area, wherein the face display area is an area where a face appears in a screen of the intelligent terminal;
and performing light supplement processing on the face display area.
Based on the first aspect of the present application, in a first possible implementation manner, the performing light supplement processing on the face display area includes:
turning up the brightness of a first set of backlights of the intelligent terminal,
and the light of the first group of backlight lamps covers the human face display area.
Based on the first possible implementation manner of the first aspect of the present application, in a second possible implementation manner, the performing light supplement processing on the face display area further includes:
turning down the brightness of a second group of backlight lamps of the intelligent terminal;
or turning off a second group of backlights of the intelligent terminal;
and the light of the second group of backlight lamps does not cover the human face display area.
Based on the first aspect of the present application, or the first possible implementation manner of the first aspect of the present application, or the second possible implementation manner of the first aspect of the present application, in a third possible implementation manner, the determining a current face display area is:
and determining the current face display area based on an infrared camera built in the intelligent terminal.
Based on the first aspect of the present application, or the first possible implementation manner of the first aspect of the present application, or the second possible implementation manner of the first aspect of the present application, in a fourth possible implementation manner, in a face recognition process of an intelligent terminal, it is detected whether an illumination intensity of an environment where the intelligent terminal is located is lower than a preset intensity threshold value:
and in the face recognition process under the screen locking state of the intelligent terminal, detecting whether the illumination intensity of the environment where the intelligent terminal is located is lower than a preset intensity threshold value.
A second aspect of the present application provides a face recognition processing apparatus, including:
the detection unit is used for detecting whether the illumination intensity of the environment where the intelligent terminal is located is lower than a preset intensity threshold value or not in the face recognition process of the intelligent terminal;
the determining unit is used for determining a current face display area when the illumination intensity of the environment where the intelligent terminal is located is lower than the intensity threshold, wherein the face display area is an area where a face appears in the screen of the intelligent terminal;
and the light supplement unit is used for performing light supplement processing on the face display area.
Based on the second aspect of the present application, in a first possible implementation manner, the light supplement unit is specifically configured to: turning up the brightness of a first group of backlight lamps of the intelligent terminal;
and the light of the first group of backlight lamps covers the human face display area.
Based on the first possible implementation manner of the second aspect of the present application, in a second possible implementation manner, the light supplement unit is further specifically configured to: turning down the brightness of a second group of backlight lamps of the intelligent terminal;
or turning off a second group of backlights of the intelligent terminal;
and the light of the second group of backlight lamps does not cover the human face display area.
Based on the second aspect of the present application, or the first possible implementation manner of the second aspect of the present application, or the second possible implementation manner of the second aspect of the present application, in a third possible implementation manner, the determining unit is specifically configured to: and determining the current face display area based on an infrared camera built in the intelligent terminal.
Based on the second aspect of the present application, or the first possible implementation manner of the second aspect of the present application, or the second possible implementation manner of the second aspect of the present application, in a fifth possible implementation manner, the detecting unit is specifically configured to: and in the face recognition process under the screen locking state of the intelligent terminal, detecting whether the illumination intensity of the environment where the intelligent terminal is located is lower than a preset intensity threshold value.
A third aspect of the present application provides a smart terminal comprising a memory, a processor, and a computer program stored on the memory and executable on the processor. The processor, when executing the computer program, implements the face recognition processing method of the first aspect or any possible implementation manner of the first aspect.
A fourth aspect of the present application provides a computer-readable storage medium having a computer program stored thereon. The computer program as described above, when executed by a processor, implements the face recognition processing method as mentioned in the first aspect above or any possible implementation manner of the first aspect above.
Therefore, according to the scheme, when the illumination intensity of the environment where the intelligent terminal is located is detected to be lower than the intensity threshold value in the face recognition process of the intelligent terminal, the current face display area is determined, and light supplement processing is carried out on the face display area. The light supplementing processing is carried out on the face display area, so that the intelligent terminal can capture a clearer face under the scene with insufficient light, and the face recognition success rate of the intelligent terminal under the scene is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1-a is a schematic flow chart of an embodiment of a face recognition processing method provided by the present application;
1-b is a schematic diagram of a screen display of an intelligent terminal in an application scenario provided by the present application;
fig. 2 is a schematic structural diagram of an embodiment of a face recognition processing apparatus provided in the present application;
fig. 3 is a schematic structural diagram of an embodiment of an intelligent terminal provided by the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It should be understood that the sequence numbers of the steps in the method embodiments described below do not mean the execution sequence, and the execution sequence of each process should be determined by the function and the inherent logic of the process, and should not constitute any limitation on the implementation process of each embodiment.
In order to explain the technical solution described in the present application, the following description will be given by way of specific examples.
Example one
The embodiment of the application provides a face recognition processing method, which is applied to a face recognition processing device, and the face recognition processing device is integrated in an intelligent terminal. The operating system of the intelligent terminal can be ios, android, windows system or other operating systems, and the intelligent terminal can be a terminal such as a smart phone, a tablet computer and wearable equipment.
Referring to fig. 1-a, the face recognition processing method in the embodiment of the present application includes:
in the embodiment of the application, whether the illumination intensity of the environment where the intelligent terminal is located is lower than a preset intensity threshold value or not can be detected in the face recognition process of the intelligent terminal in the screen locking state. The face recognition process in the intelligent terminal screen locking state occurs in the screen unlocking process after the intelligent terminal starts the face unlocking mode, for example, when the intelligent terminal receives a screen unlocking instruction after the intelligent terminal starts the face unlocking mode, the intelligent terminal starts the face recognition process in the screen locking state to recognize whether the currently captured face is a preset face for unlocking. Of course, in the embodiment of the present application, it may also be detected whether the illumination intensity of the environment where the intelligent terminal is located is lower than the preset intensity threshold in the face recognition process in any scene of the intelligent terminal, which is not limited herein.
In step 101, when it is detected that the illumination intensity of the environment where the intelligent terminal is located is lower than the intensity threshold, it may be considered that the light of the environment where the intelligent terminal is located is insufficient, and then step 102 and the following steps are executed. When it is detected that the illumination intensity of the environment where the intelligent terminal is located is not lower than the intensity threshold, it can be considered that the light of the environment where the intelligent terminal is located is enough, and at this time, the step 102 and the subsequent steps do not need to be executed.
Specifically, step 101 may be implemented by detecting whether the illumination intensity of the environment where the intelligent terminal is located is lower than a preset intensity threshold value based on a light sensor built in the intelligent terminal, or detecting whether the illumination intensity of the environment where the intelligent terminal is located is lower than the preset intensity threshold value in other manners, where the process of detecting whether the illumination intensity of the environment where the intelligent terminal is located is lower than the preset intensity threshold value may be implemented with reference to the prior art, and is not limited herein.
the face display area is an area where a face appears in a screen of the intelligent terminal. For example, if a screen display diagram of the intelligent terminal is shown in fig. 1-b, the region S is the face display region.
Optionally, since the infrared camera light may capture an image invisible to naked eyes in a dark environment, in order to determine the current face display area more accurately, in step 102, the current face display area may be determined based on the infrared camera built in the intelligent terminal.
103, performing light supplement processing on the face display area;
in the embodiment of the application, after the face display area is determined, light supplement processing is performed on the face display area.
In this embodiment of the application, the light supplement processing on the face display area may be implemented by turning up a backlight that covers the face display area, and then step 103 specifically includes: and increasing the brightness of a first group of backlight lamps of the intelligent terminal, wherein the light of the first group of backlight lamps covers the human face display area. Specifically, the number of the backlights in the first group of backlights may be 1 or more. Further, in order to reduce the ineffective supplementary lighting and reduce the power consumption of the intelligent terminal, in step 103, the brightness of a second group of backlights of the intelligent terminal may be turned down, or the second group of backlights of the intelligent terminal may be turned off, where the lights of the second group of backlights do not cover the human face display area. Specifically, the number of the backlights in the second group of backlights may be 1 or more. Of course, in another embodiment, while the brightness of the first group of backlights of the intelligent terminal is increased, the brightness of other backlights in the intelligent terminal, i.e., backlights of the intelligent terminal other than the first group of backlights, may be kept unchanged.
As can be seen from the above, in the embodiment of the present application, when it is detected that the illumination intensity of the environment where the intelligent terminal is located is lower than the intensity threshold in the face recognition process of the intelligent terminal, the current face display area is determined and light supplement processing is performed on the face display area. The light supplementing processing is carried out on the face display area, so that the intelligent terminal can capture a clearer face under the scene with insufficient light, and the face recognition success rate of the intelligent terminal under the scene is improved.
Example two
The embodiment of the application provides a face recognition processing device. As shown in fig. 2, the face recognition processing apparatus 200 in the embodiment of the present application includes:
the detection unit 201 is configured to detect whether an illumination intensity of an environment where the intelligent terminal is located is lower than a preset intensity threshold in a face recognition process of the intelligent terminal;
a determining unit 202, configured to determine a current face display area when the illumination intensity of the environment where the intelligent terminal is located is lower than the intensity threshold, where the face display area is an area where a face appears in a screen of the intelligent terminal;
and a supplementary lighting unit 203, configured to perform supplementary lighting processing on the face display area.
Optionally, the light supplement unit 203 is specifically configured to: and adjusting the brightness of a first group of backlight lamps of the intelligent terminal to be high. And the light of the first group of backlight lamps covers the human face display area.
Optionally, the light supplement unit 203 is further specifically configured to: turning down the brightness of a second group of backlight lamps of the intelligent terminal; alternatively, a second set of backlights of the smart terminal is turned off. And the light of the second group of backlight lamps does not cover the human face display area.
Optionally, the determining unit 202 is specifically configured to: and determining the current face display area based on an infrared camera built in the intelligent terminal.
Optionally, the detecting unit 201 is specifically configured to: and in the face recognition process under the screen locking state of the intelligent terminal, detecting whether the illumination intensity of the environment where the intelligent terminal is located is lower than a preset intensity threshold value.
It should be noted that, in the embodiment of the present application, the face recognition processing apparatus is integrated in an intelligent terminal. The operating system of the intelligent terminal can be ios, android, windows system or other operating systems, and the intelligent terminal can be a terminal such as a smart phone, a tablet computer and wearable equipment.
As can be seen from the above, in the embodiment of the present application, when it is detected that the illumination intensity of the environment where the intelligent terminal is located is lower than the intensity threshold in the face recognition process of the intelligent terminal, the current face display area is determined and light supplement processing is performed on the face display area. The light supplementing processing is carried out on the face display area, so that the intelligent terminal can capture a clearer face under the scene with insufficient light, and the face recognition success rate of the intelligent terminal under the scene is improved.
EXAMPLE III
An embodiment of the present application provides an intelligent terminal, please refer to fig. 3, where the intelligent terminal in the embodiment of the present application further includes: a memory 301, one or more processors 302 (only one shown in fig. 3), and a computer program stored on the memory 301 and executable on the processors. Wherein: the memory 301 is used to store software programs and modules, and the processor 302 executes various functional applications and data processing by operating the software programs and units stored in the memory 301. Specifically, the processor 302 realizes the following steps by running the above-mentioned computer program stored in the memory 301:
in the face recognition process of the intelligent terminal, detecting whether the illumination intensity of the environment where the intelligent terminal is located is lower than a preset intensity threshold value;
if the illumination intensity of the environment where the intelligent terminal is located is lower than the intensity threshold, determining a current face display area, wherein the face display area is an area where a face appears in a screen of the intelligent terminal;
and performing light supplement processing on the face display area.
Assuming that the foregoing is the first possible implementation manner, in a second possible implementation manner provided on the basis of the first possible implementation manner, the performing light supplement processing on the face display area includes:
turning up the brightness of a first set of backlights of the intelligent terminal,
and the light of the first group of backlight lamps covers the human face display area.
In a third possible implementation manner provided on the basis of the second possible implementation manner, the performing light supplement processing on the face display area further includes:
turning down the brightness of a second group of backlight lamps of the intelligent terminal;
or turning off a second group of backlights of the intelligent terminal;
and the light of the second group of backlight lamps does not cover the human face display area.
In a fourth possible implementation manner provided on the basis of the first possible implementation manner, the second possible implementation manner, or the third possible implementation manner, the determining a current face display area is:
and determining the current face display area based on an infrared camera built in the intelligent terminal.
In a fifth possible implementation manner provided on the basis of the first possible implementation manner, the second possible implementation manner, or the third possible implementation manner, in the face recognition process of the intelligent terminal, detecting whether the illumination intensity of the environment where the intelligent terminal is located is lower than a preset intensity threshold is:
and in the face recognition process under the screen locking state of the intelligent terminal, detecting whether the illumination intensity of the environment where the intelligent terminal is located is lower than a preset intensity threshold value.
Optionally, as shown in fig. 3, the intelligent terminal may further include: one or more input devices 303 (only one shown in fig. 3) and one or more output devices 304 (only one shown in fig. 3). The memory 301, processor 302, input device 303, and output device 304 are connected by a bus 305.
It should be understood that in the embodiments of the present Application, the Processor 302 may be a Central Processing Unit (CPU), and the Processor may be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The input device 303 may include a keyboard, a touch pad, a fingerprint sensor (for collecting fingerprint information of a user and direction information of the fingerprint), a microphone, etc., and the output device 304 may include a display, a speaker, etc.
The memory 304 may include a read-only memory and a random access memory, and provides instructions and data to the processor 301. Some or all of memory 304 may also include non-volatile random access memory.
As can be seen from the above, in the embodiment of the present application, when it is detected that the illumination intensity of the environment where the intelligent terminal is located is lower than the intensity threshold in the face recognition process of the intelligent terminal, the current face display area is determined and light supplement processing is performed on the face display area. The light supplementing processing is carried out on the face display area, so that the intelligent terminal can capture a clearer face under the scene with insufficient light, and the face recognition success rate of the intelligent terminal under the scene is improved.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned functions may be distributed as different functional units and modules according to needs, that is, the internal structure of the apparatus may be divided into different functional units or modules to implement all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described system embodiments are merely illustrative, and for example, the division of the above-described modules or units is only one logical functional division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The integrated unit may be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as a separate product. Based on such understanding, all or part of the flow in the method of the embodiments described above may be implemented by a computer program, which may be stored in a computer readable storage medium and used by a processor to implement the steps of the embodiments of the methods described above. The computer program includes computer program code, and the computer program code may be in a source code form, an object code form, an executable file or some intermediate form. The computer readable medium may include: any entity or device capable of carrying the above-mentioned computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signal, telecommunication signal, software distribution medium, etc. It should be noted that the computer readable medium described above may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media excludes electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (5)
1. A face recognition processing method is characterized by comprising the following steps:
in the face recognition process of the intelligent terminal, detecting whether the illumination intensity of the environment where the intelligent terminal is located is lower than a preset intensity threshold value;
if the illumination intensity of the environment where the intelligent terminal is located is lower than the intensity threshold, determining a current face display area, wherein the face display area is an area where a face appears in a screen of the intelligent terminal; the determination of the current face display area is as follows: determining a current face display area based on an infrared camera built in the intelligent terminal;
and performing light supplement processing on the face display area, wherein the light supplement processing comprises the following steps: turning up the brightness of a first group of backlight lamps of the intelligent terminal and turning down the brightness of a second group of backlight lamps of the intelligent terminal; or, the brightness of a first group of backlight lamps of the intelligent terminal is increased, and a second group of backlight lamps of the intelligent terminal is turned off; the light of the first group of backlight lamps covers the human face display area, and the number of the backlight lamps of the first group of backlight lamps is one or more than two; and the light of the second group of backlight lamps does not cover the human face display area, and the number of the backlight lamps of the second group of backlight lamps is one or more than two.
2. The face recognition processing method according to claim 1, wherein in the face recognition process of the intelligent terminal, the step of detecting whether the illumination intensity of the environment where the intelligent terminal is located is lower than a preset intensity threshold value is as follows:
and in the face recognition process under the screen locking state of the intelligent terminal, detecting whether the illumination intensity of the environment where the intelligent terminal is located is lower than a preset intensity threshold value.
3. A face recognition processing apparatus, comprising:
the detection unit is used for detecting whether the illumination intensity of the environment where the intelligent terminal is located is lower than a preset intensity threshold value or not in the face recognition process of the intelligent terminal;
the determining unit is used for determining a current face display area when the illumination intensity of the environment where the intelligent terminal is located is lower than the intensity threshold, wherein the face display area is an area where a face appears in the screen of the intelligent terminal; the determination of the current face display area is as follows: determining a current face display area based on an infrared camera built in the intelligent terminal;
a light supplement unit, configured to perform light supplement processing on the face display area, including: turning up the brightness of a first group of backlight lamps of the intelligent terminal and turning down the brightness of a second group of backlight lamps of the intelligent terminal; or, the brightness of a first group of backlight lamps of the intelligent terminal is increased, and a second group of backlight lamps of the intelligent terminal is turned off; the light of the first group of backlight lamps covers the human face display area, and the number of the backlight lamps of the first group of backlight lamps is one or more than two; and the light of the second group of backlight lamps does not cover the human face display area, and the number of the backlight lamps of the second group of backlight lamps is one or more than two.
4. An intelligent terminal comprising a memory, a processor and a computer program stored in the memory and running on the processor, characterized in that the steps of the method according to claim 1 or 2 are implemented when the processor executes the computer program.
5. A computer-readable storage medium, in which a computer program is stored and which is applied to an intelligent terminal, wherein the computer program, when being executed by a processor, implements the steps of the method according to claim 1 or 2.
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| CN109862278B (en) * | 2019-04-19 | 2022-08-16 | 努比亚技术有限公司 | Light supplementing method and device for face recognition and computer readable storage medium |
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