CN107609446A - A kind of recognition methods of code figure, terminal and computer-readable recording medium - Google Patents
A kind of recognition methods of code figure, terminal and computer-readable recording medium Download PDFInfo
- Publication number
- CN107609446A CN107609446A CN201710638928.6A CN201710638928A CN107609446A CN 107609446 A CN107609446 A CN 107609446A CN 201710638928 A CN201710638928 A CN 201710638928A CN 107609446 A CN107609446 A CN 107609446A
- Authority
- CN
- China
- Prior art keywords
- code
- overexposure
- exposure
- identification
- identification region
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a kind of code figure recognition methods, terminal and computer-readable recording medium, overexposure causes yard figure discrimination low in being identified for existing code figure, the problem of recognition speed is slow, the image of code figure to be identified is obtained by the default identification region of camera camera module, it is determined that the exposure of code figure, when the exposure of code figure is overexposure, by obtaining code figure to be identified again with other nonoverlapping identification regions of default identification region, so as to carry out the identification of yard figure by multiple identification regions, it successfully make use of terminal camera module actually applicable identification region rather than just with default identification region, so as to improve the speed and accuracy rate of the identification of code figure.
Description
Technical field
, can more specifically to a kind of recognition methods of code figure, terminal and computer the present invention relates to field of terminal technology
Read storage medium.
Background technology
With the development of mobile intelligent terminal, dependence of the people to mobile terminal is more and more stronger, and the use of mobile terminal
In scene, the scene of barcode scanning is also more and more, its be widely used in payment, transfer accounts, shared bicycle, good friend's addition etc. use field
Jing Zhong.And during actual barcode scanning, because ambient is too bright, or by flash lamp carry out light filling when, can cause
The overexposure of code figure, refer to Fig. 1, Fig. 1 shows the display schematic diagram of Quick Response Code overexposure, and the acquiescence identification region in figure is exactly
The identification region that various system applications or third-party application are taken, due to the fixation of identification region, and code figure under strong light
Overexposure, the identification process of Quick Response Code can be caused long for this or Direct Recognition failure, user need to take more time to adjust
The angle of whole terminal is to realize the change of light-inletting quantity, and the process of the more severe adjustment of environment is more cumbersome, and Consumer's Experience is also poorer.
The content of the invention
The technical problem to be solved in the present invention is how to avoid code figure overexposure under strong light to recognition speed and accuracy rate
Influence, for the technical problem, there is provided a kind of recognition methods of code figure, terminal and computer-readable recording medium.
In order to solve the above technical problems, the present invention provides a kind of code figure recognition methods, the code figure recognition methods includes：
The image of code figure to be identified is obtained by the default identification region of camera module；
Determine the exposure of the code figure；
When the exposure of the code figure is overexposure, by with other nonoverlapping identification regions of the default identification region
Code figure to be identified is obtained again, and other described identification regions include at least one.
Optionally, the exposure for determining the code figure includes：
The code figure is divided at least two parts according to preset rules；
The exposure of each several part of the code figure is detected respectively；
When the part of overexposure in the code figure meets preparatory condition, the exposure for judging the code figure is overexposure.
Optionally, it is described the code figure is divided at least two parts according to preset rules to include：By the code figure with
Nine grids model split is nine parts；
It is described to include when the part of overexposure in the code figure meets preparatory condition：In the code figure, positioned at the portion of centre
Divide overexposure；And/or in the code figure, the quantity of the part of overexposure is more than or equal to preset value.
Optionally, code to be identified is obtained again by other nonoverlapping identification regions of the default identification region described
After figure, if the exposure of the code figure is still overexposure,：Prompting message is sent, the prompting message is used to remind user to adjust
The whole terminal obtains the light-inletting quantity of the image of the code figure.
Optionally, other described identification regions include two, respectively positioned at the upper and lower part of the default identification region.
The present invention also provides a kind of terminal, including processor, memory, camera module and communication bus；
The communication bus is used to realize the connection communication between processor and memory；
The processor is used to perform the code figure recognizer stored in the memory, to realize following steps：
The image of code figure to be identified is obtained by the default identification region of the camera module；
Determine the exposure of the code figure；
When the exposure of the code figure is overexposure, by with other nonoverlapping identification regions of the default identification region
Code figure to be identified is obtained again, and other described identification regions include at least one.
Optionally, the exposure for determining the code figure includes：
The code figure is divided at least two parts according to preset rules；
The exposure of each several part of the code figure is detected respectively；
When the part of overexposure in the code figure meets preparatory condition, the exposure for judging the code figure is overexposure.
Optionally, it is described the code figure is divided at least two parts according to preset rules to include：By the code figure with
Nine grids model split is nine parts；
It is described to include when the part of overexposure in the code figure meets preparatory condition：In the code figure, positioned at the portion of centre
Divide overexposure；And/or in the code figure, the quantity of the part of overexposure is more than or equal to preset value.
Optionally, code to be identified is obtained again by other nonoverlapping identification regions of the default identification region described
After figure, if the exposure of the code figure is still overexposure,：Prompting message is sent, the prompting message is used to remind user to adjust
The whole terminal obtains the light-inletting quantity of the image of the code figure.
The present invention also provides a kind of computer-readable recording medium, the computer-readable recording medium storage have one or
The multiple programs of person, one or more of programs can be by one or more computing devices, to realize that above-mentioned code figure is known
The step of other method.
Beneficial effect
The present invention provides a kind of recognition methods of code figure, terminal and computer-readable recording medium, is identified for existing code figure
Middle overexposure causes the problem of yard figure discrimination is low, and recognition speed is slow, is obtained and treated by the default identification region of camera camera module
The image of the code figure of identification, it is determined that the exposure of code figure, when the exposure of code figure is overexposure, by with default identification region not
Other overlapping identification regions obtain code figure to be identified again, so as to carry out the identification of yard figure by multiple identification regions, into
Work(make use of terminal camera module actually applicable identification region rather than just with default identification region, so as to improve code
Scheme the speed and accuracy rate of identification.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 identifies overexposure schematic diagram for Quick Response Code in the prior art；
Fig. 2 is the hardware architecture diagram for realizing each optional mobile terminal of embodiment one of the present invention；
Fig. 3 is the code figure recognition methods basic flow sheet that first embodiment of the invention provides；
Fig. 4 is schematic diagram of the default identification region of various embodiments of the present invention offer on terminal display panel；
Fig. 5 is each identification region schematic diagram that various embodiments of the present invention provide；
Fig. 6 is the code figure nine grids dividing mode schematic diagram that various embodiments of the present invention provide；
Fig. 7 is the code figure recognition methods refined flow chart that second embodiment of the invention provides；
Fig. 8 is that the code exposure map degree that second embodiment of the invention provides determines method flow diagram；
Fig. 9 is the structural representation for the terminal that third embodiment of the invention provides.
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 follow-up description, the suffix using such as " module ", " part " or " unit " for representing element is only
Be advantageous to the explanation of the present invention, itself there is no a specific meaning.Therefore, " module ", " part " or " unit " can mix
Ground uses.
Terminal can be implemented in a variety of manners.For example, the terminal described in the present invention can include such as mobile phone, flat board
Computer, notebook computer, palm PC, personal digital assistant (Personal Digital Assistant, PDA), portable
Media player (Portable Media Player, PMP), guider, wearable device, Intelligent bracelet, pedometer etc. move
Dynamic terminal, and the fixed terminal such as digital TV, desktop computer.
It will be illustrated in subsequent descriptions by taking mobile terminal as an example, it will be appreciated by those skilled in the art that except special
Outside element for moving purpose, construction according to the embodiment of the present invention can also apply to the terminal of fixed type.
Referring to Fig. 2, its hardware architecture diagram for a kind of mobile terminal of each embodiment of the realization present invention, the shifting
Dynamic terminal 100 can include：RF (Radio Frequency, radio frequency) unit 101, WiFi module 102, audio output unit
103rd, A/V (audio/video) input block 104, sensor 105, display unit 106, user input unit 107, interface unit
108th, the part such as memory 109, processor 110 and power supply 111.It will be understood by those skilled in the art that shown in Fig. 2
Mobile terminal structure does not form the restriction to mobile terminal, and mobile terminal can be included than illustrating more or less parts,
Either combine some parts or different parts arrangement.
The all parts of mobile terminal are specifically introduced with reference to Fig. 2：
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, up data are sent to base station.Generally, 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 radio communication with network and other equipment.Above-mentioned radio communication can use any communication
Standard or agreement, including 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, WCDMA), TD-SCDMA (Time Division-Synchronous Code
Division Multiple Access, TD SDMA), FDD-LTE (Frequency Division
Duplexing-Long Term Evolution, FDD 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 the user wireless broadband internet and 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
When under the isotypes such as formula, speech recognition mode, broadcast reception mode, 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 exported,.Moreover, audio output unit 103
The audio output related to the specific function that mobile terminal 100 performs can also be provided (for example, call signal receives sound, disappeared
Breath receives sound etc.).Audio output unit 103 can include loudspeaker, buzzer etc..
A/V input blocks 104 are used to receive audio or video signal.A/V input blocks 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) are carried 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
Caused noise or interference during frequency signal.
Mobile terminal 100 also 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 transducer, wherein, ambient light sensor can be according to environment
The light and shade of light adjusts the brightness of display panel 1061, and proximity transducer 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 axles) size of acceleration, size and the direction of gravity are can detect that when static, the application available for identification mobile phone posture
(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, will not be repeated here.
Display unit 106 is used for the information for showing the information inputted 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 relevant.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 touch operation of the user on or near it
(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 means are 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 sent of reception processing device 110 and can be 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, action bars etc.
One or more, do not limit herein specifically.
Further, contact panel 1071 can cover display panel 1061, detect thereon when contact panel 1071 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. 2, contact panel 1071 and display panel
1061 be the part independent as two to realize the input of mobile terminal and output function, but in certain embodiments, can
Input and the output function of mobile terminal are 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 source (or battery charger) port, wired or nothing
Line FPDP, 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
Individual part, by running or performing the software program and/or module that are stored in memory 109, and call and be stored in storage
Data in device 109, the various functions and processing data of mobile terminal are performed, so as to carry out integral monitoring to mobile terminal.Place
Reason device 110 may include one or more processing units；Preferably, processor 110 can integrate application processor and modulatedemodulate is mediated
Device is managed, wherein, application processor mainly handles operating system, user interface and application program etc., and modem processor is main
Handle radio communication.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. 2 is not shown, mobile terminal 100 can also will not be repeated here including bluetooth module etc..
Based on above-mentioned mobile terminal hardware configuration, each embodiment of the inventive method is proposed.
First embodiment
Fig. 3 is the code figure recognition methods basic flow sheet that the present embodiment provides, and this yard of figure recognition methods includes：
S301, the image by the default identification region acquisition of camera module code figure to be identified；
S302, the exposure for determining code figure；
S303, when the exposure of code figure is overexposure, by with other nonoverlapping identification regions of default identification region again
Code figure to be identified is obtained, other identification regions include at least one.
Code figure, primarily now including two kinds of bar code and Quick Response Code, specifically, bar code be width is not waited it is multiple black
Bar and blank, arranged according to certain coding rule, so as to express the identifier of a group information.Common bar code is by putting
The pattern of parallel lines that the secret note and informal voucher that the rate of penetrating differs greatly are lined up.It is commonly used in bar code in commodity transaction, it can be with
The producing country of expression article, manufacturer, trade name, date of manufacture, price, it can also be applied in book classification, represent figure
Book classification number, it can also be applied in mail, represent many information such as the start-stop place of mail, classification, date.The knot of bar code
Structure is simple, but due to its can only storage information in one direction, the capacity that it is stored is extremely limited, the appearance of its storage information
Amount corresponds generally to the information of tens characters.Said on Quick Response Code definite meaning be bar code upgrading, it is specific with certain
The chequered with black and white graphic recording data symbol information that is distributed in the two-dimensional direction according to certain rules of set figure, with bar code
Compare, Quick Response Code can store more information, generally correspond to the information of several kilo-characters, about higher than the capacity of usual bar code
Tens times.
Bar code and Quick Response Code can be identified as code figure by terminal camera module.During identification, first
By the system software or third party software in terminal, code figure is gathered and opened, then obtained by the camera in terminal
The image of code figure.Fig. 4 is refer to, Fig. 4 shows schematic diagram of the default identification region on terminal display panel, is normally at end
The middle part of display screen is held, even so, but other positions are still that can gather image on terminal display screen.There is mirror
In this, the other positions of display screen with other nonoverlapping identification regions of default identification region, will be arranged in the present embodiment, please
With reference to figure 5, Fig. 5 is shown when other identification regions include two, its specific set location, respectively positioned at default cog region
The upper and lower part in domain.
In S302, it is determined that the exposure of code figure.Exposure i.e. light exposure, generally by the f-number of camera module, expose
Between light time and the sensitivity of photo-sensitive cell determines there be the influence of ambient brightness certainly.How ambient brightness directly results in
The specific exposure status of code figure image, when ambient brightness is excessively bright, the exposure for the code figure for inevitably causing to obtain is spent
Height, that is, overexposure, brightness is too high in picture, image whiting, so as to the specific features in None- identified image, causes to code figure
Recognition failures.The specific calculation of exposure mainly includes following steps：
Colour picture is converted into gray scale picture first, that is, colored rgb value is converted into gray value, its tool changed
Body formula is Gray=(R*30+G*59+B*11+50)/100, and wherein Gray represents the gray value of the pixel, and R, G, B divide
Not Biao Shi colour picture rgb value.
Then by gray scale picture all pixels value be added, and divided by total number of pixels, it is possible to obtain gray scale and put down
Average, that is, exposure.Its gray value average value is more than some value k, and it is overexposure to be considered as it, otherwise not overexposure.Specific k
It is worth index, is not necessarily identical for different camera modules, but its maximum is not more than 255.
Optionally, in the present embodiment, it is determined that the exposure of code figure can include：Code figure is divided into according to preset rules
At least two parts；The exposure of each several part of detection code figure respectively；When the part of overexposure in code figure meets preparatory condition, sentence
The exposure for determining code figure is overexposure.By the fractionation of the image progress of code figure to a certain extent, the exposure of yard figure can be obviously improved
The speed that luminosity calculates, each different part is relatively independent and interrelated, is obtained by the fractionation to code figure image
The exposure of various pieces, so that according to the exposure of various pieces come the overall exposure of estimated code figure.Wherein, mistake in code figure
The part of exposure meets that preparatory condition can specifically include, and the quantity of overexposure part is more, or the exposure of overexposure part is larger
Etc., when these conditions are met, then it is considered that code figure overexposure.
Specifically, in the present embodiment, be divided at least two parts according to default division rule by code figure can be with
Including：By code figure using nine grids model split as nine parts；Corresponding, when the part of overexposure in code figure meets default bar
It can then include during part：Positioned at middle part overexposure in code figure；And/or the quantity of the part of overexposure is more than or equal in code figure
Preset value.Preferably by code figure using the model split of nine grids as nine parts in the present embodiment, Fig. 6 is refer to, Fig. 6 is shown
With the schematic diagram of nine grids model split code figure.It is noted that the area of each part not necessarily phase after nine grids division
Together, the characteristics of being identified according to code figure, is adjusted, for example the part of centre is arranged into larger, and surrounding is relatively
It is small；And it is corresponding, in this dividing mode, the preparatory condition for judging to meet needed for code figure overexposure can be, in being located at
Between part overexposure, and/or, the quantity of the part of overexposure is more than or equal to preset value.Wherein, when the part overexposure positioned at centre
, and middle part is the main body of whole code figure, if the so whole equal overexposure of code figure various pieces of middle overexposure can
Energy property is larger, now then directly judges whole code figure overexposure；And if the quantity of the part of overexposure is more than or equal to preset value,
The quantity summation for being exactly other parts overexposure is more than or equal to preset value, then it represents that what these parts may be connected to, it is same clear
Show the overexposure region for being possible to large area, now can also directly judge whole code figure overexposure.In view of this, code is being carried out
During the calculating of exposure map degree, the exposure of center section can be only calculated first, when the result of calculation of center section is overexposure,
The calculating of other parts need not be carried out, directly judges code figure overexposure；When the result of calculation of center section is non-overexposure, then calculate
The exposure of other parts, further confirm that yard figure overexposure whether.Using this exposure calculation, can significantly save
The time that code exposure map degree determines.
Optionally, in the present embodiment, wait to know obtaining again by default other nonoverlapping identification regions of identification region
After other yard of figure, if the exposure of code figure is still overexposure,：Prompting message is sent, prompting message is used to remind user to adjust
Terminal obtains the light-inletting quantity of the image of code figure.It is used for the identification region for obtaining the image of code figure to be identified in the present embodiment, removes
Outside default identification region, in addition at least one other identification region, other identification regions with default identification region not
It is overlapping, together it is distributed in default identification region on the display panel of terminal.Other identification regions are maximum with default identification region
Difference be that it is obtained, and the direction of image is different, and the direction of available light and light-inletting quantity are also otherwise varied；Particularly, when obtaining
During the image of code fetch figure, according to terminal flash lamp carry out light filling if, due to the position between flash lamp and camera module
It is fixed to put, therefore the light-inletting quantity caused by flash lamp is also certain, and flash lamp is nearer apart from camera module, directly
Cause the light-inletting quantity of the default identification region among terminal display screen bigger than other regions, although brightness is higher,
Be overexposure possibility it is also bigger；After the image of the code figure acquired in default identification region determines overexposure, it is possible to switch
Obtained to other identification regions；The process of switching especially need not be simultaneously adjusted to terminal, it is thus only necessary to smaller
In the range of adjust the space angle of terminal so that the image of code figure is presented in other identification regions.
In the present embodiment, it is one to preset identification region, when other identification regions are two, can be separately positioned on default
The upper and lower part of identification region, respectively identification region one and identification region two；And in the identification process for actually carrying out code figure
In, switched in these three regions according to the result of identification, entered first by default identification region in a certain order
The identification of row code figure, then top can be then switched to Direct Recognition so as to produce recognition result, and if overexposure if non-overexposure
Identification region one, the collection of the image of code figure is carried out by the identification region one on top；Then, if still overexposure, then
Continue to be switched to the identification region two of bottom, the collection and identification of the image of code figure are carried out by the identification region two of bottom.
And if, if all identification regions are identified as overexposure, then, now can sends prompting message, prompting message
For reminding user to adjust the light-inletting quantity that terminal obtains the image of code figure, can be carried with pop-up prompting, sound prompting and vibrations
Combination between mode, or these modes wake up etc. to prompt user, allows user or adjusting the brightness of flash lamp, or adjustment is eventually
Position at end etc., to realize the change of terminal light-inletting quantity, so as to cause the change of the exposure of the image of yard figure.And adjusting
Afterwards, then the acquisition and identification of code figure are carried out according to the order of default identification region-one-identification region of identification region two once again.
A kind of code figure recognition methods is present embodiments provided, is obtained by the default identification region of camera module to be identified
The image of code figure, it is determined that the exposure of code figure, when the exposure of code figure is overexposure, by nonoverlapping with default identification region
Other identification regions obtain code figure to be identified again, so as to carry out the identification of yard figure by multiple identification regions, successfully utilize
The actual applicable identification region rather than just with default identification region of terminal camera module, so as to improve the identification of code figure
Speed and accuracy rate.
Second embodiment
Fig. 7 is the code figure recognition methods refined flow chart that second embodiment of the invention provides, and this yard of figure recognition methods includes：
S701, current identification region identification code figure；
Wherein, current identification region can preset identification region, or other identification regions, including identification region one
With any one in identification region two.
S702, whether identify successIf it is not, S703 is gone to, if so, then terminating flow；
S703, the exposure for determining code figure；
After recognition failures, the exposure of code figure to be identified is determined, mainly judges whether it belongs to overexposure；
S704, judge whether overexposureIf so, S705 is then gone to, if it is not, then going to S701；
If it is determined that if belonging to overexposure, due to overexposure in the case of the image of yard figure can be caused imperfect, then, now
Prepare switching identification region.
S705, judge whether current identification region is identification region two；If so, S709 is then gone to, if it is not, then going to
S706；
Judge whether it is that the purpose of identification region two is that the transfer sequence of identification region is from default identification region herein
Identification region two is finally arrived to identification region one, if being currently identification region two, then illustrate the first two identification region
Also identified and have failed as current identification region, and now then should not simply switch identification region again；And if
Identification region two is currently not, then the switching of identification region also still has operating space, if being currently default identification region, cuts
Change to identification region one；If being currently identification region one, identification region two is switched to.
S706, prompting user switch current identification region；
Prompt user to switch current identification region, terminal is moved in less scope so that the image of code figure is presented
In identification region after handover.
S707, judge whether user confirms to switch；If so, S708 is then gone to, if it is not, then going to S701；
S708, with preset identification region-one-identification region of identification region two order switch over.
S709, prompting user adjust the light-inletting quantity of camera module, and current identification region is switched into default identification region.
In S703, it is determined that the exposure of code figure, refer to Fig. 8, following steps are specifically included：
S801, the exposure for determining the lower middle part of nine grids division；
Nine grids division is that the image of code figure is divided into nine parts in the form of nine grids, wherein various pieces
Size is unnecessary identical.
S802, judge center section whether overexposure；If so, S803 is then gone to, if it is not, then going to S805；
When the part overexposure positioned at centre, and middle part is the main body of whole code figure, if middle overexposure that
The possibility of the equal overexposure of whole code figure various pieces is larger, now then can directly judge whole code figure overexposure.
S803, the exposure for determining other parts；
S804, judge in other parts, whether the quantity of the part of overexposure exceedes preset value；If so, S805 is then gone to, if
It is no, then go to S806；
If the quantity of the part of overexposure is more than or equal to preset value, that is, other parts overexposure quantity summation be more than or
Equal to preset value, then it represents that what these parts may be connected to, the overexposure region for being possible to large area is equally declared publicly, now
Whole code figure overexposure can also directly be judged.
S805, judgement are when the image overexposure of former code figure；
S806, judge image not overexposure when former code figure.
A kind of code figure recognition methods is present embodiments provided, is obtained by the default identification region of camera module to be identified
The image of code figure, it is determined that the exposure of code figure, when the exposure of code figure is overexposure, by nonoverlapping with default identification region
Other identification regions obtain code figure to be identified again, so as to carry out the identification of yard figure by multiple identification regions, successfully utilize
The actual applicable identification region rather than just with default identification region of terminal camera module, so as to improve the identification of code figure
Speed and accuracy rate.
3rd embodiment
A kind of terminal is present embodiments provided, shown in Figure 9, it includes processor 91, memory 92, camera module 93
With communication bus 94；
Communication bus 94 is used to realize the connection communication between processor 91 and memory 92；
Processor 91 is used to perform the code figure recognizer stored in memory 92, to realize following steps：
The image of code figure to be identified is obtained by the default identification region of camera module 93；
It is determined that the exposure of code figure；
When the exposure of code figure is overexposure, treated by being obtained again with other nonoverlapping identification regions of default identification region
The code figure of identification, other identification regions include at least one.
Bar code and Quick Response Code can be identified as code figure by terminal camera module.During identification, first
By the system software or third party software in terminal, code figure is gathered and opened, then obtained by the camera in terminal
The image of code figure.Fig. 4 is refer to, Fig. 4 shows schematic diagram of the default identification region on terminal display panel, is normally at end
The middle part of display screen is held, even so, but other positions are still that can gather image on terminal display screen.There is mirror
In this, the other positions of display screen with other nonoverlapping identification regions of default identification region, will be arranged in the present embodiment, please
With reference to figure 5, Fig. 5 is shown when other identification regions include two, its specific set location, respectively positioned at default cog region
The upper and lower part in domain.
In the present embodiment, exposure i.e. light exposure, generally by the f-number of camera module, time for exposure and photosensitive
The sensitivity of element determines there be the influence of ambient brightness certainly.How ambient brightness directly results in a yard tool for figure image
Body exposure status, when ambient brightness is excessively bright, inevitably cause the exposure of the code figure of acquisition too high, that is, mistake
Expose, brightness is too high in picture, image whiting, so as to the specific features in None- identified image, causes the recognition failures to code figure.
The specific calculation of exposure mainly includes following steps：
Colour picture is converted into gray scale picture first, that is, colored rgb value is converted into gray value, its tool changed
Body formula is Gray=(R*30+G*59+B*11+50)/100, and wherein Gray represents the gray value of the pixel, and R, G, B divide
Not Biao Shi colour picture rgb value.
Then by gray scale picture all pixels value be added, and divided by total number of pixels, it is possible to obtain gray scale and put down
Average, that is, exposure.Its gray value average value is more than some value k, and it is overexposure to be considered as it, otherwise not overexposure.Specific k
It is worth index, is not necessarily identical for different camera modules, but its maximum is not more than 255.
Optionally, in the present embodiment, it is determined that the exposure of code figure can include：Code figure is divided into according to preset rules
At least two parts；The exposure of each several part of detection code figure respectively；When the part of overexposure in code figure meets preparatory condition, sentence
The exposure for determining code figure is overexposure.By the fractionation of the image progress of code figure to a certain extent, the exposure of yard figure can be obviously improved
The speed that luminosity calculates, each different part is relatively independent and interrelated, is obtained by the fractionation to code figure image
The exposure of various pieces, so that according to the exposure of various pieces come the overall exposure of estimated code figure.Wherein, mistake in code figure
The part of exposure meets that preparatory condition can specifically include, and the quantity of overexposure part is more, or the exposure of overexposure part is larger
Etc., when these conditions are met, then it is considered that code figure overexposure.
Specifically, in the present embodiment, be divided at least two parts according to default division rule by code figure can be with
Including：By code figure using nine grids model split as nine parts；Corresponding, when the part of overexposure in code figure meets default bar
It can then include during part：Positioned at middle part overexposure in code figure；And/or the quantity of the part of overexposure is more than or equal in code figure
Preset value.Preferably by code figure using the model split of nine grids as nine parts in the present embodiment, Fig. 6 is refer to, Fig. 6 is shown
With the schematic diagram of nine grids model split code figure.It is noted that the area of each part not necessarily phase after nine grids division
Together, the characteristics of being identified according to code figure, is adjusted, for example the part of centre is arranged into larger, and surrounding is relatively
It is small；And it is corresponding, in this dividing mode, the preparatory condition for judging to meet needed for code figure overexposure can be, in being located at
Between part overexposure, and/or, the quantity of the part of overexposure is more than or equal to preset value.Wherein, when the part overexposure positioned at centre
, and middle part is the main body of whole code figure, if the so whole equal overexposure of code figure various pieces of middle overexposure can
Energy property is larger, now then directly judges whole code figure overexposure；And if the quantity of the part of overexposure is more than or equal to preset value,
The quantity summation for being exactly other parts overexposure is more than or equal to preset value, then it represents that what these parts may be connected to, it is same clear
Show the overexposure region for being possible to large area, now can also directly judge whole code figure overexposure.In view of this, code is being carried out
During the calculating of exposure map degree, the exposure of center section can be only calculated first, when the result of calculation of center section is overexposure,
The calculating of other parts need not be carried out, directly judges code figure overexposure；When the result of calculation of center section is non-overexposure, then calculate
The exposure of other parts, further confirm that yard figure overexposure whether.Using this exposure calculation, can significantly save
The time that code exposure map degree determines.
Optionally, in the present embodiment, wait to know obtaining again by default other nonoverlapping identification regions of identification region
After other yard of figure, if the exposure of code figure is still overexposure,：Prompting message is sent, prompting message is used to remind user to adjust
Terminal obtains the light-inletting quantity of the image of code figure.It is used for the identification region for obtaining the image of code figure to be identified in the present embodiment, removes
Outside default identification region, in addition at least one other identification region, other identification regions with default identification region not
It is overlapping, together it is distributed in default identification region on the display panel of terminal.Other identification regions are maximum with default identification region
Difference be that it is obtained, and the direction of image is different, and the direction of available light and light-inletting quantity are also otherwise varied；Particularly, when obtaining
During the image of code fetch figure, according to terminal flash lamp carry out light filling if, due to the position between flash lamp and camera module
It is fixed to put, therefore the light-inletting quantity caused by flash lamp is also certain, and flash lamp is nearer apart from camera module, directly
Cause the light-inletting quantity of the default identification region among terminal display screen bigger than other regions, although brightness is higher,
Be overexposure possibility it is also bigger；After the image of the code figure acquired in default identification region determines overexposure, it is possible to switch
Obtained to other identification regions；The process of switching especially need not be simultaneously adjusted to terminal, it is thus only necessary to smaller
In the range of adjust the space angle of terminal so that the image of code figure is presented in other identification regions.
In the present embodiment, it is one to preset identification region, when other identification regions are two, can be separately positioned on default
The upper and lower part of identification region, respectively identification region one and identification region two；And in the identification process for actually carrying out code figure
In, switched in these three regions according to the result of identification, entered first by default identification region in a certain order
The identification of row code figure, then top can be then switched to Direct Recognition so as to produce recognition result, and if overexposure if non-overexposure
Identification region one, the collection of the image of code figure is carried out by the identification region one on top；Then, if still overexposure, then
Continue to be switched to the identification region two of bottom, the collection and identification of the image of code figure are carried out by the identification region two of bottom.
And if, if all identification regions are identified as overexposure, then, now can sends prompting message, prompting message
For reminding user to adjust the light-inletting quantity that terminal obtains the image of code figure, can be carried with pop-up prompting, sound prompting and vibrations
Combination between mode, or these modes wake up etc. to prompt user, allows user or adjusting the brightness of flash lamp, or adjustment is eventually
Position at end etc., to realize the change of terminal light-inletting quantity, so as to cause the change of the exposure of the image of yard figure.And adjusting
Afterwards, then the acquisition and identification of code figure are carried out according to the order of default identification region-one-identification region of identification region two once again.
A kind of terminal, including processor, memory, camera module and communication bus are present embodiments provided, passes through shooting
The default identification region of module obtains the image of code figure to be identified, it is determined that the exposure of code figure, when the exposure of code figure was
During exposure, by obtaining code figure to be identified again with other nonoverlapping identification regions of default identification region, so as to pass through multiple knowledges
Other region carries out the identification of yard figure, successfully make use of terminal camera module actually applicable identification region rather than just with
Default identification region, so as to improve the speed and accuracy rate of the identification of code figure.
Fourth embodiment
Present embodiments provide a kind of computer-readable recording medium, the computer-readable recording medium storage have one or
The multiple programs of person, one or more program can by one or more computing device, with realize as first embodiment and/
Or the step of code figure recognition methods described in second embodiment, repeat no more here.
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 device including a series of elements not only include those key elements, and
And also include the other element being not expressly set out, or also include for this process, method, article or device 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
Other identical element also be present in the process of key element, method, article or device.
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 is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal (can be mobile phone, computer, service
Device, air conditioner, or network equipment etc.) perform method described in each embodiment of the present invention.
Embodiments of the invention are described above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, it can also make a lot
Form, these are belonged within the protection of the present invention.
Claims (10)
1. a kind of yard figure recognition methods, it is characterised in that the code figure recognition methods includes：
The image of code figure to be identified is obtained by the default identification region of camera module；
Determine the exposure of the code figure；
When the exposure of the code figure is overexposure, by being obtained again with other nonoverlapping identification regions of the default identification region
Code figure to be identified is taken, other described identification regions include at least one.
2. as claimed in claim 1 yard of figure recognition methods, it is characterised in that the exposure for determining the code figure includes：
The code figure is divided at least two parts according to preset rules；
The exposure of each several part of the code figure is detected respectively；
When the part of overexposure in the code figure meets preparatory condition, the exposure for judging the code figure is overexposure.
3. as claimed in claim 2 yard of figure recognition methods, it is characterised in that described to divide the code figure according to preset rules
Include at least two parts：By the code figure using nine grids model split as nine parts；
It is described to include when the part of overexposure in the code figure meets preparatory condition：In the code figure, the part mistake positioned at centre
Expose；And/or in the code figure, the quantity of the part of overexposure is more than or equal to preset value.
4. the code figure recognition methods as described in claim any one of 1-3, it is characterised in that pass through the default identification described
After other nonoverlapping identification regions of region obtain code figure to be identified again, if the exposure of the code figure is still overexposure,：
Prompting message is sent, the prompting message is used to remind user to adjust the light-inletting quantity that the terminal obtains the image of the code figure.
5. the code figure recognition methods as described in claim any one of 1-3, it is characterised in that other described identification regions include two
It is individual, respectively positioned at the upper and lower part of the default identification region.
6. a kind of terminal, it is characterised in that including processor, memory, camera module and communication bus；
The communication bus is used to realize the connection communication between processor and memory；
The processor is used to perform the code figure recognizer stored in the memory, to realize following steps：
The image of code figure to be identified is obtained by the default identification region of the camera module；
Determine the exposure of the code figure；
When the exposure of the code figure is overexposure, by being obtained again with other nonoverlapping identification regions of the default identification region
Code figure to be identified is taken, other described identification regions include at least one.
7. terminal as claimed in claim 6, it is characterised in that the exposure for determining the code figure includes：
The code figure is divided at least two parts according to preset rules；
The exposure of each several part of the code figure is detected respectively；
When the part of overexposure in the code figure meets preparatory condition, the exposure for judging the code figure is overexposure.
8. terminal as claimed in claim 7, it is characterised in that described that the code figure is divided at least two according to preset rules
Individual part includes：By the code figure using nine grids model split as nine parts；
It is described to include when the part of overexposure in the code figure meets preparatory condition：In the code figure, the part mistake positioned at centre
Expose；And/or in the code figure, the quantity of the part of overexposure is more than or equal to preset value.
9. the terminal as described in claim 6-8, it is characterised in that it is described by the default identification region it is nonoverlapping its
After his identification region obtains code figure to be identified again, if the exposure of the code figure is still overexposure,：Send prompting message,
The prompting message is used to remind user to adjust the light-inletting quantity that the terminal obtains the image of the code figure.
A kind of 10. computer-readable recording medium, it is characterised in that the computer-readable recording medium storage have one or
Multiple programs, one or more of programs can be by one or more computing devices, to realize such as claim 1 to 5
Any one of code figure recognition methods the step of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710638928.6A CN107609446B (en) | 2017-07-31 | 2017-07-31 | Code pattern recognition method, terminal and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710638928.6A CN107609446B (en) | 2017-07-31 | 2017-07-31 | Code pattern recognition method, terminal and computer readable storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107609446A true CN107609446A (en) | 2018-01-19 |
| CN107609446B CN107609446B (en) | 2020-07-31 |
Family
ID=61064272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710638928.6A Active CN107609446B (en) | 2017-07-31 | 2017-07-31 | Code pattern recognition method, terminal and computer readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107609446B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108537085A (en) * | 2018-03-07 | 2018-09-14 | 阿里巴巴集团控股有限公司 | A kind of barcode scanning image-recognizing method, device and equipment |
| CN113065374A (en) * | 2021-04-01 | 2021-07-02 | 支付宝(杭州)信息技术有限公司 | Two-dimensional code identification method, device and equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102473236A (en) * | 2009-07-29 | 2012-05-23 | 讯宝科技公司 | Method of setting amount of exposure for photodetector array in barcode scanner |
| CN103218596A (en) * | 2013-04-17 | 2013-07-24 | 苏州斯普锐智能系统有限公司 | Bar-code scanner with dynamic multi-angle illuminating system and bar-code scanning method thereof |
| US20150146925A1 (en) * | 2013-11-22 | 2015-05-28 | Samsung Electronics Co., Ltd. | Method for recognizing a specific object inside an image and electronic device thereof |
| CN104781833A (en) * | 2012-11-13 | 2015-07-15 | 共同印刷株式会社 | Two-dimensional code |
| CN106295443A (en) * | 2016-08-03 | 2017-01-04 | 浙江华睿科技有限公司 | The localization method in a kind of bar code region and device |
-
2017
- 2017-07-31 CN CN201710638928.6A patent/CN107609446B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102473236A (en) * | 2009-07-29 | 2012-05-23 | 讯宝科技公司 | Method of setting amount of exposure for photodetector array in barcode scanner |
| CN104781833A (en) * | 2012-11-13 | 2015-07-15 | 共同印刷株式会社 | Two-dimensional code |
| CN103218596A (en) * | 2013-04-17 | 2013-07-24 | 苏州斯普锐智能系统有限公司 | Bar-code scanner with dynamic multi-angle illuminating system and bar-code scanning method thereof |
| US20150146925A1 (en) * | 2013-11-22 | 2015-05-28 | Samsung Electronics Co., Ltd. | Method for recognizing a specific object inside an image and electronic device thereof |
| CN106295443A (en) * | 2016-08-03 | 2017-01-04 | 浙江华睿科技有限公司 | The localization method in a kind of bar code region and device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108537085A (en) * | 2018-03-07 | 2018-09-14 | 阿里巴巴集团控股有限公司 | A kind of barcode scanning image-recognizing method, device and equipment |
| WO2019169965A1 (en) * | 2018-03-07 | 2019-09-12 | 阿里巴巴集团控股有限公司 | Code-scanning image recognition method, apparatus and device |
| TWI769360B (en) * | 2018-03-07 | 2022-07-01 | 開曼群島商創新先進技術有限公司 | A scanning code image recognition method, device and equipment |
| CN113065374A (en) * | 2021-04-01 | 2021-07-02 | 支付宝(杭州)信息技术有限公司 | Two-dimensional code identification method, device and equipment |
| CN113065374B (en) * | 2021-04-01 | 2023-10-27 | 支付宝(杭州)信息技术有限公司 | Two-dimensional code identification method, device and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107609446B (en) | 2020-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108184050B (en) | Photographing method and mobile terminal | |
| CN107093418A (en) | A kind of screen display method, computer equipment and storage medium | |
| CN108270919A (en) | A kind of terminal brightness adjusting method, terminal and computer readable storage medium | |
| CN107767333A (en) | Method, equipment and the computer that U.S. face is taken pictures can storage mediums | |
| CN107507007A (en) | One kind pays 2 D code verification method, terminal and computer-readable recording medium | |
| CN107527200A (en) | A kind of payment management method, mobile terminal and computer-readable recording medium | |
| CN107729298A (en) | Screen occlusion area processing method, mobile terminal and computer-readable recording medium | |
| CN107707729A (en) | A kind of terminal go out screen or bright screen method, terminal and computer-readable recording medium | |
| CN107566635A (en) | Screen intensity method to set up, mobile terminal and computer-readable recording medium | |
| CN108319338A (en) | Display screen determines method, mobile terminal and computer readable storage medium | |
| CN107436801A (en) | I/O resource regulating methods, terminal and computer-readable recording medium | |
| CN107895352A (en) | A kind of image processing method and mobile terminal | |
| CN107181700A (en) | Control method, mobile terminal and the storage medium of application program for mobile terminal | |
| CN108536382A (en) | A kind of content display method, wearable terminal and storage medium | |
| CN107807857A (en) | Method, equipment and the computer for clearing up running memory can storage mediums | |
| CN108172161A (en) | Display methods, mobile terminal and computer readable storage medium based on flexible screen | |
| CN108230270A (en) | A kind of noise-reduction method, terminal and computer readable storage medium | |
| CN107797871A (en) | EMS memory occupation method for releasing resource, mobile terminal and computer-readable recording medium | |
| CN107404618A (en) | A kind of image pickup method and terminal | |
| CN107463897A (en) | Fingerprint identification method and mobile terminal | |
| CN107463324A (en) | A kind of image display method, mobile terminal and computer-readable recording medium | |
| CN107896287A (en) | Phone number risk monitoring method and mobile terminal | |
| CN107888759A (en) | A kind of method, equipment and computer-readable recording medium realized information and sent | |
| CN107729104A (en) | A kind of display methods, mobile terminal and computer-readable storage medium | |
| CN109995391A (en) | A kind of image display method, intelligently wearing terminal and computer readable storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |