CN109521866A - A kind of low-power consumption face identification method and system - Google Patents

A kind of low-power consumption face identification method and system Download PDF

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Publication number
CN109521866A
CN109521866A CN201811243235.8A CN201811243235A CN109521866A CN 109521866 A CN109521866 A CN 109521866A CN 201811243235 A CN201811243235 A CN 201811243235A CN 109521866 A CN109521866 A CN 109521866A
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CN
China
Prior art keywords
face
power consumption
plate
step
face identification
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CN201811243235.8A
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Chinese (zh)
Inventor
石庆谱
张兴恩
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佛山市禅信通科技有限公司
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Priority to CN201811243235.8A priority Critical patent/CN109521866A/en
Publication of CN109521866A publication Critical patent/CN109521866A/en

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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 – G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof
    • G06F1/32Means for saving power
    • G06F1/3203Power management, i.e. event-based initiation of power-saving mode
    • G06F1/3234Power saving characterised by the action undertaken
    • G06F1/3287Power saving characterised by the action undertaken by switching off individual functional units in the computer system
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K9/00Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
    • G06K9/00221Acquiring or recognising human faces, facial parts, facial sketches, facial expressions

Abstract

The present invention provides a kind of face identification methods and system reduced using power consumption, for the defect for the face identification method that current long-time uses, continuation recognition of face in need can be detected whether after successfully passing recognition of face, it is a kind of operation method of low-power consumption mode, this method is by reducing hardware, the use of software, such as plate camera, the infrared light filling of plate, flat screens, face recognition algorithms, wherein face recognition algorithms are that software reduces CPU, memory usage, to achieve the effect that reduce power consumption, remaining hardware is then direct reduction power consumption, it is more favorable to extend the service life of face identification terminal product simultaneously, more reasonably allotment resource, to achieve the purpose that low power consumption high efficiency can, keep face identification system more reasonable, energy conservation, efficiently service, be also beneficial to extension face identification terminal simultaneously uses the longevity Life.

Description

A kind of low-power consumption face identification method and system

Technical field

This disclosure relates to electronic application and field of face identification, more particularly, to a kind of face reduced using power consumption Recognition methods and system.

Background technique

Face recognition technology is to utilize computer/terminal analysis facial image, and then therefrom extract effective identification information, is used Carry out a special kind of skill of identification, face recognition technology application background is extensive, can be used for identity card, passport etc. and identity verification in driving license Verification, bank, intelligent access control system etc. are lived to us, work belt carrys out convenience.Hardware device needed for face recognition technology Type is more, and algorithm is complicated, and occupancy computer/terminal resource is more, and operating power consumption is high, this becomes the power consumption for how reducing recognition of face One project rich in practical significance, the present invention pass through software, hardware to solve the problems, such as the universal high power consumption of recognition of face Method reduces the power consumption of face identification system.Whether there is living object to need to carry out by being added in radar scanning certain area Face identification system is divided into recognition of face state and idle state by recognition of face, thus under prolonged idle state, it can To close camera, infrared light filling, screen and the face recognition algorithms of correspondence system, need using face identification functions when It waits, then opens camera, infrared light filling, screen and the face recognition algorithms of correspondence system, to achieve the purpose that reduce power consumption.

Summary of the invention

The disclosure provides a kind of low-power consumption face identification method and system, the recognition of face side used for current long-time The defect of method can detect whether continuation recognition of face in need after successfully passing recognition of face, and wherein recognition of face process is existing There is technology, it will not go into details.

To achieve the goals above, according to the one side of the disclosure, a kind of low-power consumption face identification method, the side are provided Method the following steps are included:

Step 1, the signal received according to plate radar, detecting specified region whether there is living object, if it is hold Row step 2;3 are thened follow the steps if not;The living object, that is, effective life entity, effective life entity can for people or its Its animal.

Step 2, successively judge whether plate camera has been opened, environment-identification light whether enough, flat screens whether Opened, whether face recognition algorithms have been opened, open plate if not meeting aforementioned all conditions or in which partial condition Camera opens the infrared light filling of plate, opens flat screens, opens face recognition algorithms, make environment-identification, platform be more suitable for into Row recognition of face, goes to step 4;

The whether enough judgment criterias of the ambient light are that whether intensity of illumination is lower than 200Lux, light in current environment It is less than 200Lux according to intensity and is then determined as that ambient light is not enough, intensity of illumination is greater than 200Lux, and then ambient light is enough, illumination Intensity can be acquired by the built-in optical sensor of plate camera or the optical sensor of plate appearance.

Step 3, into idle state, judge enter idle state time, if time-out if successively close plate camera, The infrared light filling of plate, flat screens, face recognition algorithms, return again to step 1;If had not timed out, direct return step 1;

Step 4, recognition of face process is carried out, the return step 1 if not passing through;If passed through, show to successfully complete Recognition of face.

Further, in step 1, the plate radar is the radar that tablet computer carries, the function master of the radar Control chip is SP013, for scanning living object.

Further, in step 1, it is 3 that the specified region, which is one piece of radius in front of the radar of tablet computer carrying, The fan-shaped region of rice.

Further, in step 2, the face recognition algorithms are the method based on geometrical characteristic, the side based on template The algorithm of any one design of method and method based on model.

Further, in step 2, the face recognition algorithms be characterized face algorithm, EigenFace algorithm, Any one algorithm in Fisherface algorithm, LBPH algorithm.

Further, in step 4, the recognition of face process is that man face image acquiring and detection, facial image are located in advance Reason, facial image feature extraction and matching and identification.

The present invention also provides a kind of low-power consumption face identification system, the system comprises: it memory, processor and deposits The computer program that can be run in the memory and on the processor is stored up, the processor executes the computer journey Sort run is in the unit of following system:

Object detection unit, the signal for being received according to plate radar, detecting specified region whether there is effective life Target, hereinafter referred to as living object if it is go to identification start unit;If otherwise going to idle switch unit;

Start unit is identified, for successively judging whether plate camera has been opened, whether environment-identification light is enough, flat Whether plate screen has been opened, whether face recognition algorithms have been opened, if not meeting aforementioned all conditions or in which partial condition Plate camera is then opened, the infrared light filling of plate is opened, opens flat screens, opens face recognition algorithms, makes environment-identification, put down Platform is more suitable for carrying out recognition of face, goes to face identification unit;

Idle switch unit judges to enter idle state time, successively close if time-out for entering idle state The infrared light filling of plate camera, plate, flat screens, face recognition algorithms, return again to object detection unit;If had not timed out, Then pass directly to object detection unit;

Face identification unit returns to object detection unit if not passing through for carrying out recognition of face process;If logical It crosses, then shows to successfully complete a recognition of face.

The disclosure has the beneficial effect that the present invention provides a kind of low-power consumption face identification method and system, the method are A kind of operation method of low-power consumption mode, this method passes through the use for reducing hardware, software, as plate camera, plate are infrared Light filling, flat screens, face recognition algorithms, wherein face recognition algorithms are that software reduces CPU, memory usage, are subtracted to reach The effect of few power consumption, remaining hardware is then direct reduction power consumption, while being more favorable to extend making for face identification terminal product With the service life, more reasonable allotment resource, with achieve the purpose that low power consumption high efficiency can, make face identification system more rationally, energy conservation, It efficiently services, while being also beneficial to extend the service life of face identification terminal.

Detailed description of the invention

By the way that the embodiment in conjunction with shown by attached drawing is described in detail, above-mentioned and other features of the disclosure will More obvious, identical reference label indicates the same or similar element in disclosure attached drawing, it should be apparent that, it is described below Attached drawing be only some embodiments of the present disclosure, for those of ordinary skill in the art, do not making the creative labor Under the premise of, it is also possible to obtain other drawings based on these drawings, in the accompanying drawings:

Fig. 1 show a kind of flow chart of low-power consumption face identification method;

Fig. 2 show a kind of low-power consumption face identification system figure.

Specific embodiment

It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the disclosure, specific structure and generation clear Chu, complete description, to be completely understood by the purpose, scheme and effect of the disclosure.It should be noted that the case where not conflicting Under, the features in the embodiments and the embodiments of the present application can be combined with each other.

It is as shown in Figure 1 to be explained according to a kind of flow chart of low-power consumption face identification method of the disclosure below with reference to Fig. 1 State a kind of low-power consumption face identification method according to embodiment of the present disclosure.

The disclosure proposes a kind of low-power consumption face identification method, specifically includes the following steps:

Step 1, the signal received according to plate radar, detecting specified region whether there is effective inanimate object, simple below Claim living object, if it is thening follow the steps 2;3 are thened follow the steps if not;

Step 2, successively judge whether plate camera has been opened, environment-identification light whether enough, flat screens whether Opened, whether face recognition algorithms have been opened, open plate if not meeting aforementioned all conditions or in which partial condition Camera opens the infrared light filling of plate, opens flat screens, opens face recognition algorithms, make environment-identification, platform be more suitable for into Row recognition of face, goes to step 4.

The whether enough judgment criterias of the ambient light are that whether intensity of illumination is lower than 200Lux, light in current environment It is less than 200Lux according to intensity and is then determined as that ambient light is not enough, intensity of illumination is greater than 200Lux, and then ambient light is enough, illumination Intensity can be acquired by the built-in optical sensor of plate camera or the optical sensor of plate appearance.

Step 3, into idle state, judge enter idle state time, if time-out if successively close plate camera, The infrared light filling of plate, flat screens, face recognition algorithms, return again to step 1;If had not timed out, direct return step 1.

Step 4, recognition of face process is carried out, the return step 1 if not passing through;If passed through, show to successfully complete Recognition of face.

Further, in step 1, the plate radar is the radar that tablet computer carries, the function master of the radar Control chip is SP013, and for scanning living object, the living object is the human body for having temperature.

Further, in step 1, it is 3 that the specified region, which is one piece of radius in front of the radar of tablet computer carrying, The fan-shaped region of rice.

Further, in step 2, the face recognition algorithms are the method based on geometrical characteristic, the side based on template The algorithm of any one design of method and method based on model.

Further, in step 2, the face recognition algorithms be characterized face algorithm, EigenFace algorithm, Any one algorithm in Fisherface algorithm, LBPH algorithm.

Further, in step 4, the recognition of face process is that man face image acquiring and detection, facial image are located in advance Reason, facial image feature extraction and matching and identification.

Dual camera recognition of face tablet computer (rear abbreviation plate) is mounted to a wall, the radar (chip that plate carries Model: SP013) fan-shaped region (one piece of specified region) that previous piece of radius of plate is 3 meters is scanned, judge whether have in region Living object exists, if so, then leaving low-power consumption mode, normally successively detects whether to open plate camera, recognition of face Whether whether environment have enough light, flat screens to open, whether opened face recognition algorithms, and opens corresponding soft or hard Part equipment (the infrared light filling of plate camera, plate, flat screens, face recognition algorithms), which reaches, is appropriate for recognition of face, so Recognition of face is completed by face identification process (prior art) afterwards;If not and continued for some time into this free time State then closes the infrared light filling of plate camera, plate, flat screens, face recognition algorithms, into low-power consumption mode.Into After low-power consumption mode, radar still will continue to scanning area, detected effective living object then leave as mentioned above it is low Power consumption mode.

The radar function main control chip is SP013, for scanning living object, is equipped with by microwave remote sensor a small amount of outer It encloses component and constitutes passive type " microwave switch ".All kinds of switching devices can be quickly opened automatically, are a kind of high-tech type products, are matched It does matching with filter glass and resistance to be formed with field-effect tube, microwave induction controller generates one on the axis radial direction of antenna A triangle body Space Microwave induction region can detected the echo reflected from human body and microwave induced control when physical activity The former microwave field that device issues is relevant to change frequently, converts it into electric signal output.And human body radiation wave can be effectively suppressed Interference radiation other than length.Such as sunlight, light.Made in the disclosure using the core devices SP013 of radar and its peripheral circuit For the signal preamplifier state of microwave sensor sensing module.The triggering letter of above-described microwave sensor sensing module output Number second level amplification and the processing of internal double amplitude discriminators are carried out by peripheral cell, living object is identified by tablet computer.

A kind of low-power consumption face identification system that embodiment of the disclosure provides, the one kind for being illustrated in figure 2 the disclosure are low A kind of low-power consumption face identification system of power consumption face identification system figure, the embodiment includes: processor, memory and storage In the memory and the computer program that can run on the processor, the processor execute the computer program Step in a kind of above-mentioned low-power consumption face identification system embodiment of Shi Shixian.

It can be transported in the memory and on the processor the system comprises: memory, processor and storage Capable computer program, the processor execute the computer program and operate in the unit of following system:

Object detection unit, the signal for being received according to plate radar, detecting specified region whether there is effective life Target, hereinafter referred to as living object if it is go to identification start unit;If otherwise going to idle switch unit;

Start unit is identified, for successively judging whether plate camera has been opened, whether environment-identification light is enough, flat Whether plate screen has been opened, whether face recognition algorithms have been opened, if not meeting aforementioned all conditions or in which partial condition Plate camera is then opened, the infrared light filling of plate is opened, opens flat screens, opens face recognition algorithms, makes environment-identification, put down Platform is more suitable for carrying out recognition of face, goes to face identification unit;

Idle switch unit judges to enter idle state time, successively close if time-out for entering idle state The infrared light filling of plate camera, plate, flat screens, face recognition algorithms, return again to object detection unit;If had not timed out, Then pass directly to object detection unit;

Face identification unit returns to object detection unit if not passing through for carrying out recognition of face process;If logical It crosses, then shows to successfully complete a recognition of face.

A kind of low-power consumption face identification system can run on desktop PC, notebook, palm PC and cloud Server etc. is held to calculate in equipment.A kind of low-power consumption face identification system, the system that can be run may include, but not only limit In processor, memory.It will be understood by those skilled in the art that the example is only a kind of low-power consumption face identification system Example, do not constitute the restriction to a kind of low-power consumption face identification system, may include component more more or fewer than example, Perhaps certain components or different components are combined, such as a kind of low-power consumption face identification system can also include input Output equipment, network access equipment, bus etc..

Alleged processor can be central processing unit (Central Processing Unit, CPU), can also be it His general processor, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field- Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic, Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor Deng the processor is a kind of control centre of low-power consumption face identification system operating system, utilizes various interfaces and line A kind of entire low-power consumption face identification system of road connection can operating system various pieces.

The memory can be used for storing the computer program and/or module, and the processor is by operation or executes Computer program in the memory and/or module are stored, and calls the data being stored in memory, described in realization A kind of various functions of low-power consumption face identification system.The memory can mainly include storing program area and storage data area, Wherein, storing program area can application program needed for storage program area, at least one function (such as sound-playing function, figure As playing function etc.) etc.;Storage data area, which can be stored, uses created data (such as audio data, phone according to mobile phone This etc.) etc..In addition, memory may include high-speed random access memory, it can also include nonvolatile memory, such as firmly Disk, memory, plug-in type hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) block, flash card (Flash Card), at least one disk memory, flush memory device or other volatile solid-states Part.

Although the description of the disclosure is quite detailed and especially several embodiments are described, it is not Any of these details or embodiment or any specific embodiments are intended to be limited to, but should be considered as is by reference to appended A possibility that claim provides broad sense in view of the prior art for these claims explanation, to effectively cover the disclosure Preset range.In addition, the disclosure is described with inventor's foreseeable embodiment above, its purpose is to be provided with Description, and those equivalent modifications that the disclosure can be still represented to the unsubstantiality change of the disclosure still unforeseen at present.

Claims (7)

1. a kind of low-power consumption face identification method, which is characterized in that the described method comprises the following steps:
Step 1, the signal received according to plate radar, detecting specified region whether there is living object, if it is execute step Rapid 2;3 are thened follow the steps if not;
Step 2, successively judge whether plate camera has been opened, whether environment-identification light whether beaten by enough, flat screens Open, whether face recognition algorithms have been opened, opened if not meeting aforementioned all conditions or in which partial condition plate camera shooting Head opens the infrared light filling of plate, opens flat screens, opens face recognition algorithms, goes to step 4;
Step 3, into idle state, judge to enter idle state time, plate camera, plate are successively closed if time-out Infrared light filling, flat screens, face recognition algorithms, return again to step 1;If had not timed out, direct return step 1;
Step 4, recognition of face process is carried out, the return step 1 if not passing through;If passed through, show to successfully complete primary Recognition of face.
2. a kind of low-power consumption face identification method according to claim 1, which is characterized in that in step 1, the plate Radar is the radar that tablet computer carries, and the function main control chip of the radar is SP013, for scanning living object.
3. a kind of low-power consumption face identification method according to claim 1, which is characterized in that in step 1, described specified Region is the fan-shaped region that one piece of radius in front of the radar that tablet computer carries is 3 meters.
4. a kind of low-power consumption face identification method according to claim 1, which is characterized in that in step 2, the face Recognizer is the calculation of any one design of the method based on geometrical characteristic, the method based on template and the method based on model Method.
5. a kind of low-power consumption face identification method according to claim 1, which is characterized in that in step 2, the face Recognizer is characterized face algorithm, EigenFace algorithm, Fisherface algorithm, any one algorithm in LBPH algorithm.
6. a kind of low-power consumption face identification method according to claim 1, which is characterized in that in step 4, the face Identification process is man face image acquiring and detection, facial image pretreatment, facial image feature extraction and matching and identification.
7. a kind of low-power consumption face identification system, which is characterized in that the system comprises: it memory, processor and is stored in In the memory and the computer program that can run on the processor, the processor execute the computer program fortune Row is in the unit of following system:
Object detection unit, the signal for being received according to plate radar, detecting specified region whether there is effective inanimate object, Hereinafter referred to as living object if it is goes to identification start unit;If otherwise going to idle switch unit;
Identify start unit, for successively judge whether plate camera has been opened, environment-identification light whether enough, flat screen Whether curtain has been opened, whether face recognition algorithms have been opened, and beats if not meeting aforementioned all conditions or in which partial condition Opening plate camera opens the infrared light filling of plate, opens flat screens, opens face recognition algorithms, makes environment-identification, platform more It is appropriate for recognition of face, goes to face identification unit;
Idle switch unit judges to enter idle state time, successively closes plate if time-out for entering idle state The infrared light filling of camera, plate, flat screens, face recognition algorithms, return again to object detection unit;If had not timed out, directly It is switched to object detection unit;
Face identification unit returns to object detection unit if not passing through for carrying out recognition of face process;If passed through, Then show to successfully complete a recognition of face.
CN201811243235.8A 2018-10-24 2018-10-24 A kind of low-power consumption face identification method and system CN109521866A (en)

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CN204887612U (en) * 2015-08-24 2015-12-16 宁波维纳诗节能科技有限公司 Control system of microwave response lamps and lanterns
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CN106791440A (en) * 2017-01-20 2017-05-31 奇酷互联网络科技(深圳)有限公司 Control the method and device of Face datection function
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201548691U (en) * 2009-11-19 2010-08-11 南京远拓科技有限公司 Human body motion monitor
CN202210263U (en) * 2011-06-30 2012-05-02 汉王科技股份有限公司 Face recognition device
EP2587341A1 (en) * 2011-10-27 2013-05-01 Tobii Technology AB Power management in an eye-tracking system
CN104376244A (en) * 2014-10-16 2015-02-25 上海嘉炽自动化系统工程有限公司 Control device and method for human-computer interface and electrical equipment
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