CN106339653A - QR code scanning processing method and QR code scanning processing device - Google Patents
QR code scanning processing method and QR code scanning processing device Download PDFInfo
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- CN106339653A CN106339653A CN201610721002.9A CN201610721002A CN106339653A CN 106339653 A CN106339653 A CN 106339653A CN 201610721002 A CN201610721002 A CN 201610721002A CN 106339653 A CN106339653 A CN 106339653A
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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
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
- G06K7/146—Methods for optical code recognition the method including quality enhancement steps
- G06K7/1478—Methods for optical code recognition the method including quality enhancement steps adapting the threshold for pixels in a CMOS or CCD pixel sensor for black and white recognition
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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
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
- G06K7/1408—Methods for optical code recognition the method being specifically adapted for the type of code
- G06K7/1417—2D bar codes
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- Computer Vision & Pattern Recognition (AREA)
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- Theoretical Computer Science (AREA)
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- Image Processing (AREA)
Abstract
Embodiments of the invention provide a QR code scanning processing method and a QR code scanning processing device, and relate to the technical field of image processing. The QR code scanning processing method comprises the following steps: when a camera is started to scan a target QR code, reducing the default resolution of the camera to a scanning resolution; and collecting an image of the target QR code based on the scanning resolution, and performing QR code decoding on the image. According to the QR code scanning processing method provided by the embodiments of the invention, the resolution of the camera is reduced when the target QR code is scanned through the camera, and the image of the target QR code is collected based on the reduced resolution, so that the volume of data needing to be processed for QR code decoding is reduced, and the decoding speed is increased. A target QR code can be scanned in the moving process of a mobile terminal.
Description
Technical field
The present embodiments relate to technical field of image processing, more particularly, to a kind of two-dimensional code scanning processing method and dress
Put.
Background technology
Quick Response Code is also called two-dimensional bar code, is according to certain rules at plane (two-dimensional directional) with certain specific geometric figure
The figure that the bar/Kongxiang of upper distribution is seen carrys out record data symbolic information.Quick Response Code is used primarily for automobile factory and follows the trail of part, mesh
Before be widely used in false proof, shopping etc. aspect.Quick Response Code has that information capacity is big, coding range is wide, fault-tolerant ability is strong, decoding can
High by property, low cost, the feature easily making simultaneously.
Two-dimensional code scanning identifies that the mode of picture has two kinds: one kind is conventional sweep, that is, pass through the photograph work(of mobile terminal
Quick Response Code can be shot, then identify Quick Response Code using two-dimensional code scanning recognizer；Another kind is local picture scanning, that is, exist
Shoot Quick Response Code without mobile terminal before Quick Response Code identification, but the local picture with Quick Response Code is identified.
During realizing the embodiment of the present invention, it is right to need in inventor's existing Quick Response Code conventional sweep method of discovery
Picture with Quick Response Code to be scanned is focused, and calls the zxing of java layer to decode storehouse and is decoded, decoding speed is slow,
Cannot rapidly realize Quick Response Code is scanned.
Content of the invention
The embodiment of the present invention provides a kind of two-dimensional code scanning processing method and processing device, in order to solve Quick Response Code in prior art
The slow defect of scanning processing method decoding speed.
The embodiment of the present invention provides a kind of two-dimensional code scanning processing method, comprising:
When startup photographic head is scanned to target Quick Response Code, the default resolution of described photographic head is reduced to scanning
Resolution；
Gather the image of described target Quick Response Code based on described scanning resolution, and Quick Response Code decoding is carried out to described image
Process.
Alternatively, described based on described scanning resolution gather described target Quick Response Code image include:
Gather the image of described target Quick Response Code based on described scanning resolution, and cutting process is carried out to described image.
Alternatively, described described image is carried out after cutting process, methods described also includes:
If judging, the position sensing figure knowing Quick Response Code in the image that cutting is processed is not default in described image
On position, then rotation processing is carried out to described image.
Alternatively, described Quick Response Code decoding process carried out to described image include:
In c linguistic level, Quick Response Code decoding process is carried out to described image.
Alternatively, described scanning resolution is the 1/2 of described default resolution.
Two-dimensional code scanning processing method provided in an embodiment of the present invention, reduces when scanning target Quick Response Code by photographic head
The resolution of photographic head, using the image of the resolution acquisition target Quick Response Code after reducing, reduces required for decoding Quick Response Code
The size of processing data, improves decoding speed, may be implemented in the scanning to target Quick Response Code during motion of mobile terminals.
The embodiment of the present invention provides a kind of two-dimensional code scanning processing meanss, comprising:
Resolution setting unit, for when startup photographic head is scanned to target Quick Response Code, by described photographic head
Default resolution is reduced to scanning resolution；
Two-dimensional code scanning unit, for gathering the image of described target Quick Response Code, and to institute based on described scanning resolution
State image and carry out Quick Response Code decoding process.
Alternatively, described two-dimensional code scanning unit includes:
Image capture module, for gathering the image of described target Quick Response Code based on described scanning resolution；
Image cropping module, for being acquired to described image processing；
Decoder module, for being decoded to described image processing.
Alternatively, described two-dimensional code scanning unit also includes:
Image rotation module, judges the position sensing figure knowing Quick Response Code in the image that cutting is processed not for working as
On the predeterminated position of described image, then rotation processing is carried out to described image.
Alternatively, described two-dimensional code scanning unit, is further used for, in c linguistic level, carrying out Quick Response Code solution to described image
Code is processed.
Alternatively, described scanning resolution is the 1/2 of described default resolution.
Two-dimensional code scanning processing meanss provided in an embodiment of the present invention, resolution setting unit scans target by photographic head
The resolution of photographic head is reduced, two-dimensional code scanning unit is using the resolution acquisition target Quick Response Code after reducing during Quick Response Code
Image, reduces the size of processing data required for decoding Quick Response Code, improves decoding speed, may be implemented in motion of mobile terminals
During scanning to target Quick Response Code.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description are these
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also root
Obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the flow chart of two-dimensional code scanning processing method embodiment of the present invention；
Fig. 2 is the schematic diagram of the target Quick Response Code of one embodiment of the invention；
Fig. 3 is the structural representation of two-dimensional code scanning processing meanss embodiment of the present invention；
Fig. 4 is the entity structure schematic diagram of the two-dimensional code scanning processing meanss of the embodiment of the present invention.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment is
The a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment being obtained under the premise of not making creative work, broadly falls into the scope of protection of the invention.
Fig. 1 is the flow chart of two-dimensional code scanning processing method embodiment of the present invention.As shown in figure 1, the two dimension of the present embodiment
Code scanning processing method includes:
S11: when startup photographic head is scanned to target Quick Response Code, the default resolution of described photographic head is reduced to
Scanning resolution；
Wherein, default resolution refers to the resolution of photographic head default setting, and scanning resolution refers to photographic head and exists
The resolution arranging during to two-dimensional code scanning；Scanning resolution is less than default resolution.
It should be noted that the embodiment of the present invention can be using any intelligence having and being provided with two-dimensional code scanning recognizer
Energy mobile phone, panel computer etc., the embodiment of the present invention is without limitation.Two-dimensional code scanning recognizer can be mounted in movement
App in terminal, can be by being scanned to the picture with Quick Response Code knowing to the positioning of Quick Response Code, segmentation and decoding operate
Not.
For example, the resolution of the photographic head of mobile terminal has 1024 × 768,1600 × 1200,2048 × 1,536 3
Kind, its default resolution is 2048 × 1536, and scanning resolution is set to 1024 × 768.Starting photographic head to target two dimension
Code when being scanned, the resolution of photographic head is reduced to scanning resolution, and that is, 1024 × 768.
S12: gather the image of described target Quick Response Code based on described scanning resolution, and Quick Response Code is carried out to described image
Decoding process.
It will be appreciated that it is not necessary to high-resolution image, the therefore present invention are implemented for scanning image in 2 D code
Photographic head after reducing resolution for the example gathers the image of target Quick Response Code, reduces the size of view data, reduces and understands
Required for code Quick Response Code, the size of processing data, improves decoding speed.
Specifically, the positioning to Quick Response Code, segmentation and decoding operate are included to the process of Quick Response Code decoding process, comprising:
The image-region of the bar code symbol of Quick Response Code is converted to bianry image, dilation operation is carried out to two finger images and obtains
Bianry image after expansion, the profile to obtain the bar code region of Quick Response Code for the edge of bianry image after then detection expands；
Above-mentioned profile is modified and splits and obtain complete standard bar code image；
Grid Sampling is carried out to above-mentioned standard bar code image and is configured to bitmap, obtain the binary number in above-mentioned bar code region
According to and carry out error correction and translation, and be converted to code word data.
The two-dimensional code scanning processing method of the embodiment of the present invention, reduces shooting when scanning target Quick Response Code by photographic head
The resolution of head, using the image of the resolution acquisition target Quick Response Code after reducing, reduces and processes required for decoding Quick Response Code
The size of data, improves decoding speed, may be implemented in the scanning to target Quick Response Code during motion of mobile terminals.
In the embodiment of another one two-dimensional code scanning identifying processing method of the present invention, with the embodiment of the method in Fig. 1
Identical, wherein step s12 specifically includes:
Gather the image of described target Quick Response Code based on described scanning resolution, and cutting process is carried out to described image.
It should be noted that the image of the target Quick Response Code of photographic head collection is included around image in 2 D code and Quick Response Code
Other images.In order to reduce the size of processing data required for decoding Quick Response Code further, improve decoding speed, to collection
Image carries out cutting process before carrying out Quick Response Code decoding process, crops the image outside view-finder, to obtain in view-finder
Image.
Preferably, described image is carried out after cutting process, methods described also includes:
If judging, the position sensing figure knowing Quick Response Code in the image that cutting is processed is not default in described image
On position, then rotation processing is carried out to described image.
It will be appreciated that the view data of mobile terminal is from the imageing sensor of photographic head hardware, image passes
Sensor has the view direction of an acquiescence, the seat of the acquiescence view direction of general mobile phone camera after being fixed to mobile terminal
Mark initial point is located at upper left corner during mobile phone traverse.When leading to mobile phone traverse and place vertically due to the acquiescence view direction of imageing sensor
It is inconsistent in the direction of the become image of imageing sensor.
It should be noted that as shown in Fig. 2 Quick Response Code such as qr (quick-response) code includes position sensing figure
Shape a, position sensing figure b and position sensing figure c.When applying the photographic head collection target Quick Response Code of mobile terminal, obtain
The direction of the Quick Response Code of image may be inconsistent.In order to accelerate decoding speed, can be by two dimension before Quick Response Code decoding process
Three position sensing figures of code adjust on the default position of image, and this default position can be position as shown in Figure 2
Put.
In two-dimensional code scanning identifying processing method provided in an embodiment of the present invention, Quick Response Code decoding is carried out to described image
Process and include:
In c linguistic level, Quick Response Code decoding process is carried out to described image.
It should be noted that being to call the zxing of java layer to decode storehouse to carry out in existing two-dimensional code scanning processing method
Decoding, decoding speed is slow.And the two-dimensional code scanning processing method of the embodiment of the present invention calls the zbar decoding storehouse of c layer to be solved
Code, decoding speed is fast.
Preferably, in order to ensure to ensure target Quick Response Code is accurately identified while improving decoding speed, described sweep
Retouch that resolution is described default resolution 1/2.
Two-dimensional code scanning processing method provided in an embodiment of the present invention, reduces when scanning target Quick Response Code by photographic head
The resolution of photographic head, using the image of the resolution acquisition target Quick Response Code after reducing, and carries out cutting, rotation to obtaining image
Turn and process, reduce the size of processing data required for decoding Quick Response Code, in c linguistic level, Quick Response Code decoding process is carried out to image
Further increase decoding speed, may be implemented in the scanning to target Quick Response Code during motion of mobile terminals.
Fig. 3 is the structural representation of two-dimensional code scanning processing meanss embodiment of the present invention.As shown in figure 3, the present embodiment
Two-dimensional code scanning processing meanss include resolution setting unit 31 and two-dimensional code scanning unit 32, specifically:
Resolution setting unit 31, for when startup photographic head is scanned to target Quick Response Code, by described photographic head
Default resolution be reduced to scanning resolution；Two-dimensional code scanning unit 32, for described based on the collection of described scanning resolution
The image of target Quick Response Code, and Quick Response Code decoding process is carried out to described image.
For example, the resolution of the photographic head of mobile terminal has 1024 × 768,1600 × 1200,2048 × 1,536 3
Kind, its default resolution is 2048 × 1536, and scanning resolution is set to 1024 × 768.Starting photographic head to target two dimension
Code when being scanned, the resolution of photographic head is reduced to scanning resolution, and that is, 1024 × 768.
It will be appreciated that it is not necessary to high-resolution image, the therefore present invention are implemented for scanning image in 2 D code
Photographic head after reducing resolution for the example gathers the image of target Quick Response Code, reduces the size of view data, reduces and understands
Required for code Quick Response Code, the size of processing data, improves decoding speed.
Specifically, the positioning to Quick Response Code, segmentation and decoding operate are included to the process of Quick Response Code decoding process, comprising:
The image-region of the bar code symbol of Quick Response Code is converted to bianry image, dilation operation is carried out to two finger images and obtains
Bianry image after expansion, the profile to obtain the bar code region of Quick Response Code for the edge of bianry image after then detection expands；
Above-mentioned profile is modified and splits and obtain complete standard bar code image；
Grid Sampling is carried out to above-mentioned standard bar code image and is configured to bitmap, obtain the binary number in above-mentioned bar code region
According to and carry out error correction and translation, and be converted to code word data.
In the embodiment of the present invention, resolution setting unit 31, will when startup photographic head is scanned to target Quick Response Code
The default resolution of described photographic head is reduced to scanning resolution；Two-dimensional code scanning unit 32 is based on described scanning resolution collection
The image of described target Quick Response Code, and Quick Response Code decoding process is carried out to described image.
The two-dimensional code scanning processing meanss of the embodiment of the present invention, resolution setting unit scans target two dimension by photographic head
The resolution of photographic head is reduced, two-dimensional code scanning unit is using the figure of the resolution acquisition target Quick Response Code after reducing during code
Picture, reduces the size of processing data required for decoding Quick Response Code, improves decoding speed, may be implemented in motion of mobile terminals mistake
Scanning to target Quick Response Code in journey.
In the embodiment of the another one two-dimensional code scanning processing meanss of the present invention, similar with the structure in Fig. 2, two dimension
Code scanning element 32 includes:
Image capture module, for gathering the image of described target Quick Response Code based on described scanning resolution；
Image cropping module, for being acquired to described image processing；
Decoder module, for being decoded to described image processing.
Preferably, two-dimensional code scanning unit 32 also includes:
Image rotation module, judges the position sensing figure knowing Quick Response Code in the image that cutting is processed not for working as
On the predeterminated position of described image, then rotation processing is carried out to described image.
Two-dimensional code scanning unit 32, is further used for, in c linguistic level, carrying out Quick Response Code decoding process to described image.
Preferably, described scanning resolution is the 1/2 of described default resolution.
The two-dimensional code scanning processing meanss of the embodiment of the present invention can be used for executing said method embodiment, its principle and skill
Art effect is similar to, and here is omitted.
Fig. 3 is the entity structure schematic diagram of two-dimensional code scanning processing meanss embodiment of the present invention.As shown in figure 3, this two dimension
Code scaning treatment device includes:
Processor (processor) 41, memorizer (memory) 42 and bus 43, wherein, processor 41 and memorizer 42
Mutual communication is completed by bus 43.Processor 41 can call the logical order in memorizer 42, to execute such as lower section
Method:
When startup photographic head is scanned to target Quick Response Code, the default resolution of described photographic head is reduced to scanning
Resolution；
Gather the image of described target Quick Response Code based on described scanning resolution, and Quick Response Code decoding is carried out to described image
Process.
In a kind of optional embodiment, the described image gathering described target Quick Response Code based on described scanning resolution
Including:
Gather the image of described target Quick Response Code based on described scanning resolution, and cutting process is carried out to described image.
Further, described described image is carried out after cutting process, methods described also includes:
If judging, the position sensing figure knowing Quick Response Code in the image that cutting is processed is not default in described image
On position, then rotation processing is carried out to described image.
Preferably, described Quick Response Code decoding process carried out to described image include:
In c linguistic level, Quick Response Code decoding process is carried out to described image.
Preferably, described scanning resolution is the 1/2 of described default resolution.
Additionally, the logical order in above-mentioned memorizer 42 can be realized by the form of SFU software functional unit and be used as solely
When vertical production marketing or use, can be stored in a computer read/write memory medium.Based on such understanding, this
Part that bright technical scheme substantially contributes to prior art in other words or this technical scheme partly can be with soft
The form of part product embodies, and this computer software product is stored in a storage medium, including some instructions in order to make
Obtain a computer equipment (can be personal computer, server, or network equipment etc.) and execute each embodiment of the present invention
The all or part of step of methods described.And aforesaid storage medium includes: u disk, portable hard drive, read only memory (rom,
Read-only memory), random access memory (ram, random access memory), magnetic disc or CD etc. various
Can be with the medium of store program codes.
Two-dimensional code scanning processing method provided in an embodiment of the present invention, reduces when scanning target Quick Response Code by photographic head
The resolution of photographic head, using the image of the resolution acquisition target Quick Response Code after reducing, reduces required for decoding Quick Response Code
The size of processing data, improves decoding speed, may be implemented in the scanning to target Quick Response Code during motion of mobile terminals.
Two-dimensional code scanning processing meanss provided in an embodiment of the present invention, resolution setting unit scans target by photographic head
The resolution of photographic head is reduced, two-dimensional code scanning unit is using the resolution acquisition target Quick Response Code after reducing during Quick Response Code
Image, reduces the size of processing data required for decoding Quick Response Code, improves decoding speed, may be implemented in motion of mobile terminals
During scanning to target Quick Response Code.
Those skilled in the art can be understood that, convenience and letter for description are bought, only with above-mentioned each function
The division of module is illustrated, and in practical application, can distribute above-mentioned functions by different function moulds as desired
Block completes, and the internal structure of device will be divided into different functional modules, to complete all or part of work(described above
Energy.The specific work process of the system, apparatus, and unit of foregoing description, may be referred to corresponding in preceding method embodiment
Journey, will not be described here.
Device embodiment described above is only that schematically the wherein said unit illustrating as separating component can
To be or to may not be physically separate, as the part that unit shows can be or may not be physics list
Unit, you can with positioned at a place, or can also be distributed on multiple NEs.Can be selected it according to the actual needs
In the purpose to realize this embodiment scheme for some or all of module.Those of ordinary skill in the art are not paying creativeness
Work in the case of, you can to understand and to implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
Mode by software plus necessary general hardware platform to be realized naturally it is also possible to pass through hardware.Based on such understanding, on
That states that technical scheme substantially contributes to prior art in other words partly can be embodied in the form of software product, should
Computer software product can store in a computer-readable storage medium, such as rom/ram, magnetic disc, CD etc., including some fingers
Order is with so that a computer equipment (can be personal computer, server, or network equipment etc.) executes each enforcement
Example or some partly described methods of embodiment.
Finally it is noted that above example, only in order to technical scheme to be described, is not intended to limit；Although
With reference to the foregoing embodiments the present invention is described in detail, it will be understood by those within the art that: it still may be used
To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to wherein some technical characteristics；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. a kind of two-dimensional code scanning processing method is it is characterised in that include:
When startup photographic head is scanned to target Quick Response Code, the default resolution of described photographic head is reduced to scanning and differentiates
Rate；
Gather the image of described target Quick Response Code based on described scanning resolution, and described image is carried out at Quick Response Code decoding
Reason.
2. two-dimensional code scanning processing method according to claim 1 it is characterised in that described based on described scanning resolution
The image gathering described target Quick Response Code includes:
Gather the image of described target Quick Response Code based on described scanning resolution, and cutting process is carried out to described image.
3. two-dimensional code scanning processing method according to claim 2 is it is characterised in that described carry out cutting to described image
After process, methods described also includes:
If judging the position sensing figure knowing Quick Response Code in the image that cutting is processed not in the predeterminated position of described image
On, then rotation processing is carried out to described image.
4. the two-dimensional code scanning processing method according to any one of claim 1-3 it is characterised in that described to described image
Carry out Quick Response Code decoding process to include:
In c linguistic level, Quick Response Code decoding process is carried out to described image.
5. the two-dimensional code scanning processing method according to any one of claim 1-3 is it is characterised in that described scanning resolution
For described default resolution 1/2.
6. a kind of two-dimensional code scanning processing meanss are it is characterised in that include:
Resolution setting unit, for when startup photographic head is scanned to target Quick Response Code, by the acquiescence of described photographic head
Resolution is reduced to scanning resolution；
Two-dimensional code scanning unit, for gathering the image of described target Quick Response Code, and to described figure based on described scanning resolution
As carrying out Quick Response Code decoding process.
7. two-dimensional code scanning processing meanss according to claim 6 are it is characterised in that described two-dimensional code scanning unit bag
Include:
Image capture module, for gathering the image of described target Quick Response Code based on described scanning resolution；
Image cropping module, for being acquired to described image processing；
Decoder module, for being decoded to described image processing.
8. two-dimensional code scanning processing meanss according to claim 7 are it is characterised in that described two-dimensional code scanning unit also wraps
Include:
Image rotation module, for knowing the position sensing figure of Quick Response Code in the image that cutting is processed not in institute when judgement
State on the predeterminated position of image, then rotation processing is carried out to described image.
9. the two-dimensional code scanning processing meanss according to any one of claim 6-8 are it is characterised in that described two-dimensional code scanning
Unit, is further used for, in c linguistic level, carrying out Quick Response Code decoding process to described image.
10. the two-dimensional code scanning processing meanss according to any one of claim 6-8 are it is characterised in that described scanning is differentiated
Rate is the 1/2 of described default resolution.
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| CN201610721002.9A CN106339653A (en) | 2016-08-24 | 2016-08-24 | QR code scanning processing method and QR code scanning processing device |
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| CN201610721002.9A CN106339653A (en) | 2016-08-24 | 2016-08-24 | QR code scanning processing method and QR code scanning processing device |
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Cited By (1)
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