CN108038405A - Barcode scanning light compensation method, mobile terminal and computer-readable recording medium - Google Patents
Barcode scanning light compensation method, mobile terminal and computer-readable recording medium Download PDFInfo
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- CN108038405A CN108038405A CN201711426844.2A CN201711426844A CN108038405A CN 108038405 A CN108038405 A CN 108038405A CN 201711426844 A CN201711426844 A CN 201711426844A CN 108038405 A CN108038405 A CN 108038405A
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- barcode scanning
- light filling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10712—Fixed beam scanning
- G06K7/10722—Photodetector array or CCD scanning
- G06K7/10732—Light sources
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Abstract
The invention discloses a kind of barcode scanning light compensation method, this method includes：When receiving barcode scanning instruction, instructed according to the barcode scanning and start camera, and obtain current environment illumination intensity；Judge whether the environment illumination intensity is less than default light filling intensity；If the environment illumination intensity is less than default light filling intensity, the screen intensity of display screen of camera side is adjusted to carry out barcode scanning light filling.The invention also discloses a kind of mobile terminal and computer-readable recording medium.The mobile terminal of the present invention is when being scanned operation, if the normal scanning of code figure and identification will be influenced by determining current illumination condition, then light filling will be carried out by way of adjusting brightness of display screen, so as to be used as area source by the use of display screen, project relatively uniform, approximately parallel direct projection light, the situation for avoiding not scanning by light reason occurs, and ensures that mobile terminal can accurately scan complete code figure and it is correctly identified.
Description
Technical field
The present invention relates to field of terminal technology, more particularly to a kind of barcode scanning light compensation method, mobile terminal and computer-readable
Storage medium.
Background technology
Code figure generally comprises bar code, Quick Response Code etc., is according to certain rules in plane point with certain specific geometric figure
The mode of the chequered with black and white graphic recording data symbol information of cloth.With the development of technology, the application scenarios of code figure become to get over
Come more wide, code figure is scanned especially with mobile terminal, scheme associated information with this yard so as to obtain, be even more use
Family provides a kind of convenient, efficient information acquiring pattern.
When user carries out barcode scanning by terminal, due to needing to use camera, thus ambient light there are certain requirements；If
It is (such as in night barcode scanning) when ambient light is dark, then difficult to the identification of code figure.The method solved at present is to be swept
During code, start and carry out light filling with the flash lamp of camera side；Then since flash lamp is point light source, light filling light often occurs
Line focus, so that code figure others coding information cannot be identified by terminal scanning, causes barcode scanning in certain part of code figure
Failure.
The content of the invention
It is a primary object of the present invention to provide a kind of barcode scanning light compensation method, mobile terminal and computer-readable storage medium
Matter, it is intended to the technical problem that can not be scanned by light reason when solving terminal barcode scanning.
To achieve the above object, the present invention provides a kind of barcode scanning light compensation method, and the barcode scanning light compensation method is applied to movement
Terminal, the mobile terminal include display screen, and the display screen side of the mobile terminal includes camera, the barcode scanning method bag
Include following steps：
When receiving barcode scanning instruction, the camera is started according to barcode scanning instruction, and obtain current ambient light
According to intensity；
Judge whether the environment illumination intensity is less than default light filling intensity；
If the environment illumination intensity is less than default light filling intensity, the screen intensity of the display screen is adjusted to be swept
Code light filling.
Alternatively, if the environment illumination intensity is less than default light filling intensity, the screen of the display screen is adjusted
Brightness the step of carrying out barcode scanning light filling to include：
If the environment illumination intensity is less than default light filling intensity, strong according to the environment illumination intensity and default light filling
Degree calculates target brightness value, and adjusts the screen intensity of the display screen according to the target brightness value to carry out barcode scanning light filling.
Alternatively, if the environment illumination intensity is less than default light filling intensity, the screen of the display screen is adjusted
The step of brightness is to carry out barcode scanning light filling, further includes：
If the environment illumination intensity is less than default light filling intensity, the barcode scanning instruction correspondence code figure and the movement are obtained
The relative position information of terminal, and determine according to the relative position information light filling region of the display screen；
The screen intensity in the light filling region is adjusted to carry out barcode scanning light filling.
Alternatively, it is described when receiving barcode scanning instruction, the camera is started according to barcode scanning instruction, and obtain and work as
Before the step of preceding environment illumination intensity, further include：
The display screen is divided into two or more subregion, and creates all subregion and the relation of code figure relative position is reflected
Firing table；
If the environment illumination intensity is less than default light filling intensity, obtain the barcode scanning instruction correspondence code figure with it is described
The relative position information of mobile terminal, and the step of determining according to the relative position information light filling region of the display screen wrap
Include：
If the environment illumination intensity is less than default light filling intensity, the barcode scanning instruction correspondence code figure and the movement are obtained
The relative position information of terminal, and light filling is determined in all subregion according to the relative position information and relation mapping table
Region.
Alternatively, the screen intensity for adjusting the light filling region the step of carrying out barcode scanning light filling to include：
The field color in the light filling region is adjusted to the first pre-set color, and by the field color tune in non-light filling region
Whole is the second pre-set color, to carry out barcode scanning light filling, wherein the brightness of first pre-set color is higher than the described second default face
The brightness of color.
Alternatively, the relative position information includes the relative distance of the code figure central point and the camera,
The step of relative position information of acquisition barcode scanning instruction the correspondence code figure and the mobile terminal, includes：
Detection infrared light is launched to the code figure central point by infrared transmitter, and records launch time；
The reflection infrared light of the code figure center point reflection is received, and records receiving time；
The code figure central point and the camera are obtained according to the spread speed of the launch time, receiving time and light
Relative distance.
Alternatively, the relative position information includes the relative angle of the code figure and the mobile terminal,
The step of relative position information of acquisition barcode scanning instruction the correspondence code figure and the mobile terminal, includes：
The azimuth information of the code figure is obtained, and obtains the tilt angle information of the mobile terminal；
The relative angle of the code figure and the mobile terminal is obtained according to the azimuth information and tilt angle information.
Alternatively, if the environment illumination intensity is less than default light filling intensity, the screen of the display screen is adjusted
After the step of brightness is to carry out barcode scanning light filling, further include：
When manually adjusting instruction of user's triggering is being received, the screen according to the adjustment operation of user to the display screen
Brightness carries out secondary adjustment, and changes the default light filling intensity according to the screen intensity after adjustment.
In addition, to achieve the above object, the present invention also provides a kind of mobile terminal, the mobile terminal includes display screen,
The display screen side of the mobile terminal includes camera, and the mobile terminal further includes processor, memory and is stored in
It can be held by the barcode scanning light filling program that the processor performs, the barcode scanning light filling program on the memory and by the processor
During row, the step of realizing barcode scanning light compensation method described above.
In addition, to achieve the above object, it is described computer-readable the present invention also provides a kind of computer-readable recording medium
Barcode scanning light filling program is stored with storage medium, wherein when the barcode scanning light filling program is executed by processor, is realized described above
The step of barcode scanning light compensation method.
The present invention is obtained current by when receiving barcode scanning and instructing, being instructed according to the barcode scanning and starting camera
Environment illumination intensity；Judge whether the environment illumination intensity is less than default light filling intensity；If the environment illumination intensity is less than
Default light filling intensity, then adjust the screen intensity of display screen of camera side to carry out barcode scanning light filling.In the above manner, this
The mobile terminal of invention when carrying out barcode scanning operation, if determine current illumination condition will influence the scanning of normal code figure and
Identification, then will carry out light filling, so as to by the use of display screen as area source, project by way of adjusting brightness of display screen
Relatively uniform, approximately parallel direct projection light, the situation for avoiding not scanning by light reason occur, and ensure that mobile terminal can
To complete code figure and it is correctly identified with accurate scanning.
Brief description of the drawings
Fig. 1 is the hardware architecture diagram for the mobile terminal that the embodiment of the present invention is related to；
Fig. 2 is the flow diagram of barcode scanning light compensation method first embodiment of the present invention；
If Fig. 3 is less than default light filling intensity for the environment illumination intensity described in Fig. 2, the screen of the display screen is adjusted
Brightness is to carry out the refinement flow diagram of barcode scanning light filling；
Fig. 4 is the flow diagram of barcode scanning light compensation method second embodiment of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
In the embodiment of the present invention, the method for barcode scanning light filling is applied to mobile terminal, which can be with various
Form is implemented, for example, the mobile terminal involved in the present invention can include such as mobile phone, tablet computer, palm PC, number
Camera, personal digital assistant (Personal Digital Assistant, PDA), portable media player (Portable
Media Player, PMP), guider, wearable device, Intelligent bracelet, the mobile terminal such as pedometer.
It will be illustrated in subsequent descriptions by taking mobile phone as an example, it will be appreciated by those skilled in the art that except being used in particular for
Outside the element of mobile purpose, construction according to the embodiment of the present invention can also apply to other types of mobile terminal.
Referring to Fig. 1, Fig. 1 is the mobile terminal hardware architecture diagram for realizing each embodiment of the present invention, the terminal 100
It can include：RF (Radio Frequency, radio frequency) unit 101, WiFi module 102, audio output unit 103, A/V (sounds
Frequently/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory
109th, the component such as processor 110 and power supply 111.It will be understood by those skilled in the art that the terminal structure shown in Fig. 1 is simultaneously
The restriction to mobile terminal is not formed, and mobile terminal can be included than illustrating more or fewer components, or some portions of combination
Part, or different components arrangement.
The all parts of mobile terminal are specifically introduced with reference to Fig. 1：
Radio frequency unit 101 can be used for receiving and sending messages or communication process in, the reception and transmission of signal, specifically, by base station
Downlink information receive after, handled to processor 110；In addition, by the data sending of uplink to base station.In general, radio frequency unit 101
Including but not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier, duplexer etc..In addition, penetrate
Frequency unit 101 can also be communicated by wireless communication with network and other equipment.Above-mentioned wireless communication can use any communication
Standard or agreement, include but not limited to GSM (Global System of Mobile communication, global system for mobile telecommunications
System), GPRS (General Packet Radio Service, general packet radio service), CDMA2000 (Code
Division Multiple Access 2000, CDMA 2000), WCDMA (Wideband Code Division
Multiple Access, wideband code division multiple access), TD-SCDMA (Time Division-Synchronous Code
Division Multiple Access, TD SDMA), FDD-LTE (Frequency Division
Duplexing-Long Term Evolution, frequency division duplex Long Term Evolution) and TDD-LTE (Time Division
Duplexing-Long Term Evolution, time division duplex Long Term Evolution) etc..
WiFi belongs to short range wireless transmission technology, and mobile terminal can help user to receive and dispatch electricity by WiFi module 102
Sub- mail, browse webpage and access streaming video etc., it has provided wireless broadband internet to the user and has accessed.Although Fig. 2 shows
Go out WiFi module 102, but it is understood that, it is simultaneously not belonging to must be configured into for mobile terminal, completely can be according to need
To be omitted in the essential scope for do not change invention.
Audio output unit 103 can be in call signal reception pattern, call mode, record mould in mobile terminal 100
Formula, speech recognition mode, broadcast reception mode when under isotype, by radio frequency unit 101 or WiFi module 102 it is receiving or
It is sound that the voice data stored in memory 109, which is converted into audio signal and exports,.Moreover, audio output unit 103
The relevant audio output of specific function performed with mobile terminal 100 can also be provided (for example, call signal receives sound, disappears
Breath receives sound etc.).Audio output unit 103 can include loudspeaker, buzzer etc..
A/V input units 104 are used to receive audio or video signal.A/V input units 104 can include graphics processor
(Graphics Processing Unit, GPU) 1041 and microphone 1042, graphics processor 1041 is in video acquisition mode
Or the static images or the view data of video obtained in image capture mode by image capture apparatus (such as camera) carry out
Reason.Picture frame after processing may be displayed on display unit 106.Picture frame after the processing of graphics processor 1041 can be deposited
Storage is transmitted in memory 109 (or other storage mediums) or via radio frequency unit 101 or WiFi module 102.Mike
Wind 1042 can connect in telephone calling model, logging mode, speech recognition mode etc. operational mode via microphone 1042
Quiet down sound (voice data), and can be voice data by such acoustic processing.Audio (voice) data after processing can
To be converted to the form output that mobile communication base station can be sent to via radio frequency unit 101 in the case of telephone calling model.
Microphone 1042 can implement various types of noises and eliminate (or suppression) algorithm to eliminate (or suppression) in reception and send sound
The noise produced during frequency signal or interference.
Mobile terminal 100 further includes at least one sensor 105, such as optical sensor, motion sensor and other biographies
Sensor.Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein, ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 1061, and proximity sensor can close when mobile terminal 100 is moved in one's ear
Display panel 1061 and/or backlight.As one kind of motion sensor, accelerometer sensor can detect in all directions (general
For three axis) size of acceleration, size and the direction of gravity, the application available for identification terminal posture are can detect that when static
(such as horizontal/vertical screen switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, percussion) etc.；
The fingerprint sensor that can also configure as mobile phone, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer,
The other sensors such as hygrometer, thermometer, infrared ray sensor, details are not described herein.
Display unit 106 is used for the information for showing by information input by user or being supplied to user.Display unit 106 can wrap
Display panel 1061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used
Forms such as (Organic Light-Emitting Diode, OLED) configures display panel 1061.
User input unit 107 can be used for the numeral or character information for receiving input, and produce the use with mobile terminal
The key signals input that family is set and function control is related.Specifically, user input unit 107 may include contact panel 1071 with
And other input equipments 1072.Contact panel 1071, also referred to as touch-screen, collect user on it or neighbouring touch operation
(for example user uses any suitable objects or annex such as finger, stylus on contact panel 1071 or in contact panel 1071
Neighbouring operation), and corresponding attachment device is driven according to formula set in advance.Contact panel 1071 may include touch detection
Two parts of device and touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect touch operation band
The signal come, transmits a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and by it
Contact coordinate is converted into, then gives processor 110, and the order that processor 110 is sent can be received and performed.In addition, can
To realize contact panel 1071 using polytypes such as resistance-type, condenser type, infrared ray and surface acoustic waves.Except contact panel
1071, user input unit 107 can also include other input equipments 1072.Specifically, other input equipments 1072 can wrap
Include but be not limited to physical keyboard, in function key (such as volume control button, switch key etc.), trace ball, mouse, operation lever etc.
One or more, do not limit herein specifically.
Further, contact panel 1071 can cover display panel 1061, when contact panel 1071 detect on it or
After neighbouring touch operation, processor 110 is sent to determine the type of touch event, is followed by subsequent processing device 110 according to touch thing
The type of part provides corresponding visual output on display panel 1061.Although in Fig. 1, contact panel 1071 and display panel
1061 be the component independent as two to realize the function that outputs and inputs of mobile terminal, but in certain embodiments, can
The function that outputs and inputs of mobile terminal is realized so that contact panel 1071 and display panel 1061 is integrated, is not done herein specifically
Limit.
Interface unit 108 is connected the interface that can pass through as at least one external device (ED) with mobile terminal 100.For example,
External device (ED) can include wired or wireless head-band earphone port, external power supply (or battery charger) port, wired or nothing
Line data port, memory card port, the port for connecting the device with identification module, audio input/output (I/O) end
Mouth, video i/o port, ear port etc..Interface unit 108 can be used for receiving the input from external device (ED) (for example, number
It is believed that breath, electric power etc.) and the input received is transferred to one or more elements in mobile terminal 100 or can be with
For transmitting data between mobile terminal 100 and external device (ED).
Memory 109 can be used for storage software program and various data.Memory 109 can mainly include storing program area
And storage data field, wherein, storing program area can storage program area, application program (such as the sound needed at least one function
Sound playing function, image player function etc.) etc.；Storage data field can store according to mobile phone use created data (such as
Voice data, phone directory etc.) etc..In addition, memory 109 can include high-speed random access memory, can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 110 is the control centre of mobile terminal, utilizes each of various interfaces and the whole mobile terminal of connection
A part, program and/or module are shown by running or performing the message being stored in memory 109, and are called and be stored in
Data in memory 109, perform the various functions and processing data of mobile terminal, so as to carry out overall prison to mobile terminal
Control.Processor 110 may include one or more processing units；Preferably, processor 110 can integrate application processor and modulatedemodulate
Processor is adjusted, wherein, application processor mainly handles operating system, user interface and application program etc., modem processor
Main processing communicates without 0 line.It is understood that above-mentioned modem processor can not also be integrated into processor 110.
Mobile terminal 100 can also include the power supply 111 (such as battery) to all parts power supply, it is preferred that power supply 111
Can be logically contiguous by power-supply management system and processor 110, so as to realize management charging by power-supply management system, put
The function such as electricity and power managed.
Although Fig. 1 is not shown, mobile terminal 100 can also be including bluetooth module etc., and details are not described herein.
Based on above-mentioned mobile terminal hardware configuration, each embodiment of proposition barcode scanning light compensation method of the present invention.
The embodiment of the present invention provides a kind of barcode scanning light compensation method.
With reference to Fig. 2, Fig. 2 is the flow diagram of barcode scanning light compensation method first embodiment of the present invention.
In the present embodiment, the barcode scanning light compensation method is applied to mobile terminal, and the mobile terminal includes display screen, described
The display screen side of mobile terminal includes camera, and the barcode scanning method comprises the following steps：
Step S10, when receiving barcode scanning instruction, starts the camera, and obtain current according to barcode scanning instruction
Environment illumination intensity；
Code figure generally comprises bar code, Quick Response Code etc., is according to certain rules in plane point with certain specific geometric figure
The mode of the chequered with black and white graphic recording data symbol information of cloth.With the development of technology, the application scenarios of code figure become to get over
Come more wide, code figure is scanned especially with mobile terminal, scheme associated information with this yard so as to obtain, be even more use
Family provides a kind of convenient, efficient information acquiring pattern.When user carries out barcode scanning by terminal, due to needing using shooting
Head, thus ambient light there are certain requirements；(such as in night barcode scanning) if ambient light is dark, to the identification of code figure
It is difficult.The method solved at present is when carrying out barcode scanning, starts and carries out light filling with the flash lamp of camera side；Yet with sudden strain of a muscle
Light lamp is point light source, light filling light focusing often occurs in certain part of code figure, so that the other coding letters of code figure
Breath cannot be identified by terminal scanning, cause barcode scanning to fail.And start the mobile terminal for double-display screen occur currently on the market, that is, exist
The front and back of mobile terminal has a display screen respectively, the mobile terminal based on this double-display screen in the present embodiment,
A kind of barcode scanning light compensation method is proposed, to solve the technical problem that above-mentioned terminal can not be scanned in barcode scanning by light reason.
Mobile terminal in the present embodiment is illustrated by taking mobile phone as an example.The front and back difference of the mobile phone of the present embodiment
With a display screen, wherein positive (common main screen) can be described as front panel, the back side can be described as back panel.The back of the body of mobile phone
The side of face has camera (and can be described as rear camera), and whether has shooting for the side of the front panel of mobile phone
Head (front camera), in the present embodiment and without requiring and limiting.User's (code when needing to use mobile phone scan code figure
Figure can use one-dimensional bar code or Quick Response Code, can also be the code figure of other forms) when, it can be grasped on mobile phone
Make, click on corresponding Scanning Options or the mode with voice control, trigger corresponding barcode scanning instruction；Mobile phone is swept receiving this
During code instruction, it will instructed according to the barcode scanning and start camera (rear camera), and show that camera is clapped in front panel
The image frame taken the photograph.User can adjust the gripping gesture of mobile phone according to the display picture of front panel, so that the camera of mobile phone
The code figure for needing to scan can be photographed.Mobile phone will also be detected current ambient light when starting camera, be worked as
Preceding environment illumination intensity.Wherein, can be that relevant light sensor is configured with mobile phone for the acquisition of environment illumination intensity
Device (light sensor), the environment illumination intensity is obtained by the photosensitive sensor；Mobile phone be can also be when starting camera,
Initial pictures will be obtained by camera, then the brightness value of the initial pictures is detected and analyzed, so as to converse
Current environment illumination intensity；Certainly it can also be and obtain environment illumination intensity by another way.
Step S20, judges whether the environment illumination intensity is less than default light filling intensity；
In the present embodiment, mobile phone, can be strong by the environment illumination intensity and default light filling when getting environment illumination intensity
Degree is compared, and judges whether environment illumination intensity is less than default light filling intensity, so as to judge that current ambient light whether can
Enough meet the light requirement of mobile phone scanning.If whether environment illumination intensity is less than default light filling intensity, illustrate current environment
Light cannot meet the light requirement of mobile phone scanning, need take measures to carry out light filling at this time, so that code figure can be successfully scanned
And identification, S30 is entered step at this time；If environment illumination intensity is greater than or equal to default light filling intensity, illustrate current environment
Light meets the light requirement of mobile phone scanning, can need not carry out light filling at this time.
Further, light filling intensity is preset for this to be obtained according to the relevant parameter of mobile phone camera progress theoretical calculation
To and be configured, can certainly be determined by way of experiment simulation.
Step S30, if the environment illumination intensity is less than default light filling intensity, adjusts the screen intensity of the display screen
To carry out barcode scanning light filling.
In the present embodiment, if whether environment illumination intensity is less than default light filling intensity, illustrate current ambient light not
It can meet the light requirement of mobile phone scanning, need take measures to carry out light filling at this time, so that code figure can be successfully scanned and identify.
At this time, mobile phone will light the back panel of camera side, and the screen intensity of back panel is adjusted to carry out light filling (certainly
If back panel is at the beginning illuminating state, step can directly be adjusted).When overleaf screen sends light filling light,
Relative to traditional flash lighting (point light source light filling), back panel can see area source as；According to the characteristic of area source, in hand
When machine camera completes the focusing to code figure, the light filling light that back panel projects will not focus on the certain point on yard figure, from
Without the excessively bright or excessively dark situation of certain part of code figure, mobile phone can accurately scan complete code figure and to it
It is identified.
Further, in the present embodiment, mobile phone by lighting back panel when carrying out light filling, for the bright of the back panel
Degree, can directly adjust back panel to high-high brightness to carry out light filling, can also be strong according to current ambient lighting certainly
The screen intensity that degree adjusts back panel carries out light filling.Specifically, the default light filling intensity in step S20 can be that mobile phone can scan
With the etalon optical power threshold value of identification code figure, if whether environment illumination intensity is less than default light filling intensity, illustrate current environment
Light cannot meet the light requirement of mobile phone scanning, need take measures to carry out light filling at this time so that the synthesis illumination after light filling
Intensity (i.e. ambient light and the synthesis of compensation light) is greater than or equal to default light filling intensity；According to the principle, if environment illumination intensity
Less than default light filling intensity, then the intensity of illumination that mobile phone can be calculated between environment illumination intensity and default light filling intensity at this time is poor
Value, corresponding screen objects brightness value is conversed further according to the intensity of illumination difference, then adjusts the screen intensity of back panel
To the target brightness value, so as to compensate the intensity of illumination difference by the screen light of back panel so that the synthesis illumination after light filling
Intensity is exactly equal to (can certainly be greater than) and presets light filling intensity, and mobile phone can i.e. accurately scanning arrives complete code figure simultaneously
It is identified.
It is camera (the postposition with back panel side when carrying out barcode scanning what deserves to be explained is the mobile phone in the present embodiment
Camera) barcode scanning is carried out, the screen intensity for then adjusting back panel carries out light filling；In specific implementation, if the one of front panel
Side has camera (front camera), can also carry out barcode scanning with the camera (front camera) of front panel side, then
The screen intensity for adjusting front panel carries out light filling；Certainly, the camera of mobile phone can also be mobilizable (such as rotary type
Camera), when mobile phone carries out barcode scanning using this movable camera, mobile phone can be then according to the movable camera
Light filling is carried out towards the screen intensity for adjusting front panel or back panel.
Mobile terminal in the present embodiment instructs according to the barcode scanning when receiving barcode scanning instruction and starts camera, and
Obtain current environment illumination intensity；Judge whether the environment illumination intensity is less than default light filling intensity；If the ambient light
It is less than default light filling intensity according to intensity, then adjusts the screen intensity of display screen of camera side to carry out barcode scanning light filling.Pass through
With upper type, the mobile terminal in the present embodiment is when being scanned operation, if determining current illumination condition will influence
The normal scanning of code figure and identification, then will carry out light filling, so as to utilize display screen by way of adjusting brightness of display screen
As the characteristic of area source, relatively uniform, approximately parallel direct projection light is projected, avoids what can not be scanned by light reason
Situation occurs, and ensures that mobile terminal can accurately scan complete code figure and it is correctly identified.
With reference to Fig. 3, if Fig. 3 is less than default light filling intensity for the environment illumination intensity described in Fig. 2, the display is adjusted
The screen intensity of screen is to carry out the refinement flow diagram of barcode scanning light filling.
Based on above-mentioned embodiment illustrated in fig. 2, in the present embodiment, step S30 includes：
Step S31, if the environment illumination intensity is less than default light filling intensity, obtain the barcode scanning instruction correspondence code figure with
The relative position information of the mobile terminal, and determine according to the relative position information light filling region of the display screen；
In the present embodiment, if whether environment illumination intensity is less than default light filling intensity, illustrate current ambient light not
It can meet the light requirement of mobile phone scanning, need take measures to carry out light filling at this time, so that code figure can be successfully scanned and identify.
At this time, mobile phone will light the back panel of camera side, and the screen intensity of back panel is adjusted to carry out light filling (certainly
If back panel is at the beginning illuminating state, step can directly be adjusted).And in specific implementation, passing through the back of the body
When the screen light that face is sent carries out light filling, the screen light that subregion is sent in screen is often only needed to may be such that illumination is strong
Degree meets the condition of scanning, therefore when carrying out light filling, light filling can be carried out by adjusting the brightness of back panel subregion, so as to drop
The consumption of low battery.Specifically, when environment illumination intensity is less than default light filling intensity, mobile phone will obtain the code figure focused at this time with
The relative position information of mobile phone, and determine according to the relative position information light filling region of back panel, so as to adjust the light filling area
The brightness in domain carries out light filling.
Specifically, relative position information can include code figure central point to the relative distance of camera, code figure and the shifting
Relative angle of dynamic terminal etc.；The back panel of mobile phone can be divided into advance two or more (in this specification " more than "
Including this number) subregion；There is correspondence between relative position relation and subregion, correspondence record handset content
In one relation mapping table.In the present embodiment, when getting the relative position information between code figure and mobile phone, you can inquiry should
Relation mapping table, when judging that code figure and mobile phone are in current relative position, should using which sub-regions of back panel as
Light filling region carries out brightness regulation and light filling.
Further, relative position information includes the relative distance of code figure central point and camera.For the relative distance,
Can be that various ways obtain.For example, infrared transmitter and infrared remote receiver are additionally provided with the camera of mobile phone (certainly
Can be other transmitter-receiver devices), to code figure center focusing complete when, mobile phone will by the infrared transmitter to
Code figure center transmitting detection infrared light, while record launch time；Detection infrared light will be reflected after code figure is reached；Say and logical
Cross infrared remote receiver receive transmitting infrared light when, receiving time will be recorded；According to the launch time, receiving time and light
Spread speed, you can calculate the relative distance of yard figure central point and camera.Certainly it can also be and obtained by software algorithm
The relative distance, is such as focused, the relation between focal length, image distance and object distance converts using phase；And imaged for twin-lens
The mobile phone of head, can also be the relative distance that code figure and camera are obtained using the principle of binocular ranging.
Further, relative position information can also include the relative angle of code figure and mobile phone.For the relative angle,
It can be represented with plane where code figure and the angle of screen where mobile phone, naturally it is also possible to be expressed as yard figure central point and a Mobile phone screen
(i.e. the line of code figure central point and four angles of mobile phone screen is relative to plane where mobile phone screen for the angle that four angles of curtain are formed
Angle.Acquisition for relative angle, can know the orientation of code figure by camera and/or thermoinduction sensor first
Not, then again by the one or more in gyroscope, gravity sensor, acceleration transducer to screen inclination angle (screen appearance
State) it is identified, believe further according to above-mentioned code figure orientation recognition information and the corresponding relative angle of screen gesture recognition acquisition of information
Breath.Certainly other modes can also be used to obtain the relative angle information.
Step S32, adjusts the screen intensity in the light filling region to carry out barcode scanning light filling.
In the present embodiment, when determining the light filling region of back panel, you can the screen intensity in the light filling region is adjusted
Save to realize light filling.Brightness light filling is adjusted for this subregion, can be that the screen for only lighting light filling region (such as is only lighted
The LED in light filling region), rather than the screen in light filling region is then in dark screen state.Can also light whole back panel, and it is different
The screen in region is then adjusted to the background color of different brightness, for example, the background color in light filling region can be adjusted to white
(the first pre-set color), black is adjusted to by the background color in non-light filling region, and the brightness of light filling region white is than non-benefit
The brightness of light region black is high, so also reduces consumption while barcode scanning light filling is realized.
With reference to Fig. 4, Fig. 4 is the flow diagram of barcode scanning light compensation method second embodiment of the present invention.
Based on above-mentioned Fig. 2 or embodiment illustrated in fig. 3, in the present embodiment, further included after step S30：
Step S40, is receiving when manually adjusting instruction of user's triggering, is being operated according to the adjustment of user to the display
The screen intensity of screen carries out secondary adjustment, and changes the default light filling intensity according to the screen intensity after adjustment.
In the present embodiment, after screen intensity progress light filling of the mobile phone by have adjusted back panel, if mobile phone still cannot at this time
Scanning and identification code figure, the then mode that user can be manually adjust the screen intensity of back panel.Specifically, user can be
Relevant adjustment option is clicked on mobile phone, triggering is relevant to manually adjust instruction；Mobile phone when receiving this and manually adjusting instruction,
Secondary adjustment will be carried out to the screen intensity of back panel according to the adjustment operation of user.Adjustment operation for user, Ke Yishi
It is adjusted by way of dragging luminance bar or directly inputs numerical value in brightness value input frame.It is complete in user's operation
Cheng Shi, mobile phone are to carry out secondary adjustment to the screen intensity of back panel according to the operation.
Further, after secondary adjustment is carried out to the screen intensity of back panel, if mobile phone can scan with identification code figure,
Then it is believed that the synthesis intensity of illumination (i.e. ambient light and the synthesis of second compensation light) after current light filling is greater than or equal to default mend
Luminous intensity；And since the operation of automatic light-supplementing before can not meet light filling condition, it can thus be assumed that the former default light filling that sets is strong
Degree and actual mobile phone can scan the etalon optical power threshold value and deviation with identification code figure, at this time by according to the screen after current adjustment
Default light filling intensity is modified in brightness, so as to be adjusted according to actual conditions to default light filling intensity into Mobile state so that hand
The screen light filling of machine can more be met the actual needs.
In addition, the present invention also provides a kind of mobile terminal.
Mobile terminal of the present invention includes display screen, and the display screen side of the mobile terminal includes camera, the movement
Terminal further includes processor, memory and is stored in the barcode scanning light filling that can be performed on the memory and by the processor
Program, when the barcode scanning light filling program is performed by the processor, the step of realizing barcode scanning light compensation method described above.
Wherein, the barcode scanning light filling program is performed realized method to can refer to barcode scanning light compensation method of the present invention each
Embodiment, details are not described herein again.
In addition, the present invention also provides a kind of computer-readable recording medium.
Barcode scanning light filling program is stored with computer-readable recording medium of the present invention, the barcode scanning light filling program is by processor
The step of barcode scanning light compensation method as described above is realized during execution.
Wherein, the barcode scanning light filling program is performed realized method to can refer to barcode scanning light compensation method of the present invention each
Embodiment, details are not described herein again.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or system including a series of elements not only include those key elements, and
And other elements that are not explicitly listed are further included, or further include as this process, method, article or system institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Also there are other identical element in the process of key element, method, article or system.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme substantially in other words does the prior art
Going out the part of contribution can be embodied in the form of software product, which is stored in one as described above
In storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions use so that a station terminal equipment (can be mobile phone,
Computer, server, air conditioner, or network equipment etc.) perform method described in each embodiment of the present invention.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made, is directly or indirectly used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of barcode scanning light compensation method, it is characterised in that the barcode scanning light compensation method is applied to mobile terminal, the mobile terminal
Including display screen, the display screen side of the mobile terminal includes camera, and the barcode scanning method comprises the following steps：
When receiving barcode scanning instruction, the camera is started according to barcode scanning instruction, and it is strong to obtain current ambient lighting
Degree；
Judge whether the environment illumination intensity is less than default light filling intensity；
If the environment illumination intensity is less than default light filling intensity, the screen intensity of the display screen is adjusted to carry out barcode scanning benefit
Light.
2. barcode scanning light compensation method as claimed in claim 1, it is characterised in that preset if the environment illumination intensity is less than
Light filling intensity, then adjust the screen intensity of the display screen to include the step of carrying out barcode scanning light filling：
If the environment illumination intensity is less than default light filling intensity, according to the environment illumination intensity and default light filling intensitometer
Calculate target brightness value, and the screen intensity of the display screen is adjusted to carry out barcode scanning light filling according to the target brightness value.
3. barcode scanning light compensation method as claimed in claim 1, it is characterised in that preset if the environment illumination intensity is less than
Light filling intensity, then adjust the step of screen intensity of the display screen is to carry out barcode scanning light filling, further include：
If the environment illumination intensity is less than default light filling intensity, the barcode scanning instruction correspondence code figure and the mobile terminal are obtained
Relative position information, and determine according to the relative position information light filling region of the display screen；
The screen intensity in the light filling region is adjusted to carry out barcode scanning light filling.
4. barcode scanning light compensation method as claimed in claim 3, it is characterised in that it is described when receiving barcode scanning instruction, according to institute
Before the step of stating barcode scanning instruction and start the camera, and obtaining current environment illumination intensity, further include：
The display screen is divided into two or more subregion, and creates the relationship map of all subregion and code figure relative position
Table；
If the environment illumination intensity is less than default light filling intensity, the barcode scanning instruction correspondence code figure and the movement are obtained
The relative position information of terminal, and the step of determining according to the relative position information light filling region of the display screen include：
If the environment illumination intensity is less than default light filling intensity, the barcode scanning instruction correspondence code figure and the mobile terminal are obtained
Relative position information, and according to the relative position information and relation mapping table in all subregion determine light filling area
Domain.
5. barcode scanning light compensation method as claimed in claim 3, it is characterised in that the screen intensity for adjusting the light filling region
To include the step of carrying out barcode scanning light filling：
The field color in the light filling region is adjusted to the first pre-set color, and the field color in non-light filling region is adjusted to
Second pre-set color, to carry out barcode scanning light filling, wherein the brightness of first pre-set color is higher than second pre-set color
Brightness.
6. barcode scanning light compensation method as claimed in claim 3, it is characterised in that the relative position information is included in the code figure
The relative distance of heart point and the camera,
The step of relative position information of acquisition barcode scanning instruction the correspondence code figure and the mobile terminal, includes：
Detection infrared light is launched to the code figure central point by infrared transmitter, and records launch time；
The reflection infrared light of the code figure center point reflection is received, and records receiving time；
The phase of the code figure central point and the camera is obtained according to the spread speed of the launch time, receiving time and light
Adjust the distance.
7. barcode scanning light compensation method as claimed in claim 3, it is characterised in that the relative position information include the code figure with
The relative angle of the mobile terminal,
The step of relative position information of acquisition barcode scanning instruction the correspondence code figure and the mobile terminal, includes：
The azimuth information of the code figure is obtained, and obtains the tilt angle information of the mobile terminal；
The relative angle of the code figure and the mobile terminal is obtained according to the azimuth information and tilt angle information.
8. the barcode scanning light compensation method as any one of claim 1 to 7, it is characterised in that if the ambient lighting
Intensity is less than default light filling intensity, then after adjusting the step of screen intensity of the display screen is to carry out barcode scanning light filling, also wraps
Include：
When manually adjusting instruction of user's triggering is being received, the screen intensity according to the adjustment operation of user to the display screen
Secondary adjustment is carried out, and the default light filling intensity is changed according to the screen intensity after adjustment.
9. a kind of mobile terminal, it is characterised in that the mobile terminal includes display screen, the display screen side of the mobile terminal
Including camera, the mobile terminal further includes processor, memory and is stored on the memory and can be by the place
The barcode scanning light filling program that device performs is managed, when the barcode scanning light filling program is performed by the processor, realizes such as claim 1 to 8
Any one of barcode scanning light compensation method the step of.
10. a kind of computer-readable recording medium, it is characterised in that barcode scanning benefit is stored with the computer-readable recording medium
Light path sequence, wherein when the barcode scanning light filling program is executed by processor, realizes and is swept as described in any item of the claim 1 to 8
The step of code light compensation method.
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| CN201711426844.2A CN108038405A (en) | 2017-12-22 | 2017-12-22 | Barcode scanning light compensation method, mobile terminal and computer-readable recording medium |
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|---|---|---|---|
| CN201711426844.2A CN108038405A (en) | 2017-12-22 | 2017-12-22 | Barcode scanning light compensation method, mobile terminal and computer-readable recording medium |
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| CN108038405A true CN108038405A (en) | 2018-05-15 |
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| CN113515966B (en) * | 2021-08-10 | 2024-03-15 | 海伯森技术（深圳）有限公司 | Code scanning method, device, storage medium and equipment for multispectral light illumination |
| CN113657366B (en) * | 2021-08-17 | 2023-08-29 | 百度在线网络技术（北京）有限公司 | Control method, device, equipment and storage medium of scanning pen |
| CN113657366A (en) * | 2021-08-17 | 2021-11-16 | 百度在线网络技术（北京）有限公司 | Control method, device and equipment of scanning pen and storage medium |
| CN115079886A (en) * | 2022-07-21 | 2022-09-20 | 荣耀终端有限公司 | Two-dimensional code recognition method, electronic device, and storage medium |
| EP4336330A4 (en) * | 2022-07-21 | 2024-09-25 | Honor Device Co Ltd | Two-dimensional code recognition method, electronic device, and storage medium |
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