CN108629220A - A kind of two dimension code reading method, apparatus and equipment - Google Patents
A kind of two dimension code reading method, apparatus and equipment Download PDFInfo
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- CN108629220A CN108629220A CN201810247331.3A CN201810247331A CN108629220A CN 108629220 A CN108629220 A CN 108629220A CN 201810247331 A CN201810247331 A CN 201810247331A CN 108629220 A CN108629220 A CN 108629220A
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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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10792—Special measures in relation to the object to be scanned
- G06K7/10801—Multidistance reading
- G06K7/10811—Focalisation
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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
- G06K7/1439—Methods for optical code recognition including a method step for retrieval of the optical code
- G06K7/1443—Methods for optical code recognition including a method step for retrieval of the optical code locating of the code in an image
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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
- G06K7/1439—Methods for optical code recognition including a method step for retrieval of the optical code
- G06K7/1456—Methods for optical code recognition including a method step for retrieval of the optical code determining the orientation of the optical code with respect to the reader and correcting therefore
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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
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Abstract
This specification embodiment discloses a kind of two dimension code reading method, apparatus and equipment.The method includes：Frame image is obtained using camera barcode scanning, whether includes wherein Quick Response Code based on the frame image recognition, if including Quick Response Code, determines the two-dimentional code position of the Quick Response Code, and attempt to read Quick Response Code；If reading failure, the focusing position of camera is adjusted based on two-dimentional code position, Quick Response Code region is arrived in focusing, so as to obtain the image for clearly including Quick Response Code, successfully reads the information in Quick Response Code.
Description
Technical field
This specification is related to field of computer technology more particularly to a kind of two dimension code reading method, apparatus and equipment.
Background technology
As barcode scanning distinguishes the popularization of technology, it is applied in more and more scenes, for example, carried using mobile phone
Camera distinguishes Quick Response Code, to carry out bill payment, make a reservation, obtain contact method etc. to operate.
In the prior art, it when using mobile phone etc. there is the equipment of camera function to distinguish Quick Response Code, usually may be implemented automatic
Focusing so that image to be distinguished is more clear, so as to successfully read Quick Response Code.In general, during auto-focusing uses
The mode of heart focusing.If Quick Response Code is not in plane and camera where the center for the image that camera obtains or Quick Response Code
Plane where camera lens at an angle when, Quick Response Code may result in using center-spot and read failure, user is needed to adjust phase
Position, angle or the distance of machine so as to obtain clearly image in 2 D code, and can successfully be read.
Based on the prior art, it is desirable to be able to quickly, accurately read the scheme of Quick Response Code.
Invention content
A kind of two dimension code reading method, apparatus of this specification embodiment offer and equipment, are asked for solving following technology
Topic：It is required to quick, the accurate scheme for reading Quick Response Code.
In order to solve the above technical problems, what this specification embodiment was realized in：
A kind of two dimension code reading method that this specification embodiment provides, including：
Frame image is obtained using camera barcode scanning；
If it is determined that including Quick Response Code in the frame image, it is determined that the two-dimentional code position in the frame image；
It attempts to distinguish the Quick Response Code, according to the two-dimentional code position if it can not successfully distinguish, adjusts the camera
Focusing position so that the camera focusing is to the Quick Response Code region.
A kind of two dimension code reading device that this specification embodiment provides, including：
Acquisition module obtains frame image using camera barcode scanning；
Position determination module, however, it is determined that include Quick Response Code in the frame image, it is determined that the Quick Response Code in the frame image
Position；
Module is distinguished, attempts to distinguish the Quick Response Code, according to the two-dimentional code position if it can not successfully distinguish, adjusts institute
The focusing position of camera is stated, so that the camera focusing is to the Quick Response Code region.
The a kind of electronic equipment that this specification embodiment provides, including：
At least one processor；And
The memory being connect at least one processor communication；Wherein,
The memory is stored with the instruction that can be executed by least one processor, and described instruction is by described at least one
A processor executes, so that at least one processor can：
Frame image is obtained using camera barcode scanning；
If it is determined that including Quick Response Code in the frame image, it is determined that the two-dimentional code position in the frame image；
It attempts to distinguish the Quick Response Code, according to the two-dimentional code position if it can not successfully distinguish, adjusts the camera
Focusing position so that the camera focusing is to the Quick Response Code region.
Above-mentioned at least one technical solution that this specification embodiment uses can reach following advantageous effect：
Frame image is obtained by camera barcode scanning, whether includes Quick Response Code in judgment frame image, if including Quick Response Code
Then determine the position of Quick Response Code；Further, Quick Response Code is distinguished according to frame image and two-dimentional code position, if can not successfully distinguish,
The focusing position for then continuing adjustment camera according to two-dimentional code position, so that camera can focus to Quick Response Code region.
Based on this programme, can accurate, quick barcode scanning obtain the Quick Response Code that can be distinguished, can effectively improve the recognition efficiency of Quick Response Code.
Description of the drawings
In order to illustrate more clearly of this specification embodiment or technical solution in the prior art, below will to embodiment or
Attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
Some embodiments described in this specification, for those of ordinary skill in the art, in not making the creative labor property
Under the premise of, other drawings may also be obtained based on these drawings.
Fig. 1 is the schematic diagram for the two dimension code reading system that the scheme of this specification is related under practical application scene；
Fig. 2 is a kind of flow diagram for two dimension code reading method that this specification embodiment provides；
Fig. 3 is the flow diagram for the corresponding relation determining method that this specification embodiment provides；
Fig. 4 is the flow chart for illustrating mobile phone and distinguishing Quick Response Code that this specification embodiment provides；
Fig. 5 is a kind of schematic diagram for two dimension code reading device that this specification embodiment provides.
Specific implementation mode
In order to make those skilled in the art more fully understand the technical solution in this specification, below in conjunction with this explanation
Attached drawing in book embodiment is clearly and completely described the technical solution in this specification embodiment, it is clear that described
Embodiment be merely a part but not all of the embodiments of the present application.Based on this specification embodiment, this field
The every other embodiment that those of ordinary skill is obtained without creative efforts, should all belong to the application
The range of protection.
Fig. 1 is a kind of schematic diagram for the two dimension code reading system that the scheme of this specification is related under practical application scene.
Utilize camera (for example, camera etc. of the camera of camera, mobile phone) getting frame image；Further, the frame image is identified
In whether include Quick Response Code to be distinguished；If in the frame image do not include Quick Response Code, can prompt user adjust camera with
Quick Response Code to be distinguished position relationship (including：Angle, distance etc.).If including Quick Response Code in the frame image, it is based on Quick Response Code
Position sensing figure determine the position of Quick Response Code, and the Quick Response Code is distinguished based on two-dimentional code position and frame image, if reading
Take failed, further, the position based on Quick Response Code in previous frame image adjusts the focusing position of camera, until read at
Work(.Based on waiting distinguishing two-dimentional code position, carry out the adjustment of the focusing position of camera, can effectively improve two dimension code reading at
Power and efficiency.
Camera mentioned here can be understood as to obtain the collecting device of image information, including mobile phone camera,
Camera camera or dedicated code reading device etc..In general, when distinguishing QR code content by camera, it may be necessary to join
Backstage two dimension code reading server is netted, the content in Quick Response Code is gone out for assisted reading.Based on the above method, in addition to that can be used for
The recognition success rate of Quick Response Code is improved, this can also be based on to other flat images (for example, bar code etc.) or three-dimensional object
(for example, stereoscopic two-dimensional code) is distinguished.
Based on above-mentioned scene, the scheme of this specification is described in detail below.
Fig. 2 is a kind of flow diagram for two dimension code reading method that this specification embodiment provides, and this method specifically may be used
To include the following steps：
Step S202：Frame image is obtained using camera barcode scanning.
For the camera of getting frame image, for example, can be mobile phone or special equipment etc. has the function of two dimension code reading
Equipment.
It under normal circumstances, can be in the display screen of mobile phone when identifying Quick Response Code by camera (for example, camera of mobile phone)
One Quick Response Code of setting identifies frame in curtain, so that the position for guiding user to adjust camera enables the device to successfully focus simultaneously
Quick Response Code is read, because only that identifying that the Quick Response Code in frame is likely to be identified by camera in Quick Response Code.In practical applications, base
Match with Quick Response Code identification frame in the size for the frame image that Quick Response Code identification frame obtains.Quick Response Code mentioned here identifies that frame is
Camera is effectively found a view and identification range.
Include Quick Response Code in frame image, it is also possible to occur, because the acquisition equipment camera site of frame image is improper, causing to obtain
Frame image in do not include or comprising part Quick Response Code, fail so as to cause to the recognition of Quick Response Code.
Step S204：If it is determined that including Quick Response Code in the frame image, it is determined that the two-dimentional code position in the frame image.
Frame image is the frame image obtained by camera, and in practical identification process, which can be by holding
Continuous adjustment is at a distance of to obtain clearly frame image, and therefore, which is the frame in continuous multiple frames image.
Two-dimentional code position is to be determined based on frame image, and the frame image is collected using camera, according to taking the photograph
As the correspondence of head and frame image, camera (for example, camera of mobile phone) can be made to be based on two-dimentional code position accurately
Adjust its focus point position.
Step S206：It attempts to distinguish the Quick Response Code, according to the two-dimentional code position if it can not successfully distinguish, adjusts institute
The focusing position of camera is stated, so that the camera focusing is to the Quick Response Code region.
In practical applications, it after determining the two-dimentional code position in frame image, first attempts to distinguish the Quick Response Code, if success
Recognition, then do not need camera and adjust focusing position again.If can not successfully distinguish, need to turn current Quick Response Code location information
It is changed to Focusing parameter, so that camera can accurately adjust focusing position according to Focusing parameter.
When distinguishing the Quick Response Code, the image of Quick Response Code is usually included by camera or image capture device acquisition,
The image in 2 D code information is sent to server, the content in Quick Response Code is distinguished out by server.
Whether include two in judgment frame image by above-described embodiment it is found that obtaining frame image by camera barcode scanning
Code is tieed up, the position of Quick Response Code is determined if having Quick Response Code；Further, Quick Response Code is distinguished according to frame image and two-dimentional code position,
If can not successfully distinguish, the focusing position for continuing to adjust camera according to two-dimentional code position is needed, it being capable of accurate, quick barcode scanning
The Quick Response Code that can be distinguished is obtained, the recognition efficiency of Quick Response Code is can effectively improve.
In this specification one or more embodiment, the two-dimentional code position in the determination frame image, specifically
May include：Detect the position sensing figure in the Quick Response Code；Based on the three position sensing figures detected, two dimension is determined
Position of the code in the frame image.
When based on frame image recognition Quick Response Code, it may be used and identified or preset based on the position sensing figure in Quick Response Code
Image recognition algorithm (for example, machine learning model algorithm) identifies.Wherein, the position sensing figure of Quick Response Code mentioned here is two
Tie up three figures used for positioning in code.In addition, user according to actual demand, can also select other features of Quick Response Code to use
In the identification to Quick Response Code.
Recognition result mentioned here, including recognize or the unidentified image to frame in two kinds of results of Quick Response Code.Wherein,
The reason of Quick Response Code, includes in the unidentified image to frame：Do not include Quick Response Code in frame image, either comprising part Quick Response Code or
Image in 2 D code is relatively fuzzyyer to lead to not identification etc..
If including Quick Response Code in the frame image, the position of the Quick Response Code is further determined that, for example, frame image can be set
The upper left corner be coordinate origin, further determine that position of the Quick Response Code in frame image.
Two-dimentional code position may include：The position coordinates of Quick Response Code and Quick Response Code size etc..It should be noted that here
The position coordinates and Quick Response Code size of Quick Response Code are all based on the determination of frame image.For example, it is assumed that being based on the frame image upper left corner
Vertex is coordinate origin, sets transverse and longitudinal coordinate, using the central point of Quick Response Code as Quick Response Code coordinate, and is determined based on transverse and longitudinal coordinate
The Quick Response Code size of Quick Response Code, so that camera can more accurately focus to Quick Response Code and quickly distinguish.
Further, after determining the position of Quick Response Code, Focusing parameter is adjusted based on Quick Response Code identification frame；Such as institute above
State it is found that the size of frame image and Quick Response Code identification frame matches, therefore, based on frame image determine Quick Response Code position it
Afterwards, which can be sent to the Focusing parameter of camera adjustment Quick Response Code identification frame.
In this specification one or more embodiment, the focusing position of the adjustment camera, so that described
Camera focusing can specifically include to the Quick Response Code region：According to frame image coordinate system and camera coordinate system
Correspondence converts the two-dimentional code position and obtains Focusing parameter, wherein the Focusing parameter includes focusing area size, right
It is at least one in focus；The focusing position of camera is adjusted according to the Focusing parameter, so that the camera focusing is to described
Quick Response Code region.
It should be noted that camera adjusts Focusing parameter, may include the focusings such as focus point or focusing area size
Parameter；Certainly, some equipment can also the angle of adjust automatically Image Acquisition or the ginsengs such as object distance of equipment and Quick Response Code to be distinguished
Number.
By previous embodiment it is found that two-dimentional code position is determined based on frame image, therefore, to determine Focusing parameter,
It needs that two-dimentional code position is converted to corresponding Focusing parameter based on frame image coordinate system.In practical applications, since image is adopted
Collect frequency about 30ms, and during recognition, user can holding position be constant in a few seconds with hand-held camera, therefore,
Two-dimentional code position can be determined based on frame image, and as the foundation of Focusing parameter adjustment.
When camera adjustment focusing position can be adjustment camera progress Image Acquisition apart, for preferably taking the photograph
As head can also be adjust Image Acquisition angle etc., for example, the camera lens in mobile phone can not only adjust apart, but also can adjust
Whole angle.
In order to obtain the image of clearly Quick Response Code, need according to Quick Response Code size adjusting focusing range.Focusing model
The adjustment enclosed can be realized based on multipoint focalizing, it can be ensured that clarity of image is best within the scope of this.
After completing the adjustment of focus point and focusing range, continue to acquire next frame image, recognition wherein included two
Tie up the content information of code.
In this specification one or more embodiment, if Fig. 3 is that the correspondence that this specification provides in real time determines
The correspondence of the flow diagram of method, the frame image coordinate system and camera coordinate system obtains as follows：Step
Rapid S302：According to frame image resolution ratio, frame image coordinate system is established；Step S304：According to resolution ratio of camera head, camera is established
Coordinate system；Step S306：According to the proportionate relationship of frame image resolution ratio and resolution ratio of camera head, the frame image coordinate system is determined
With the correspondence of the camera coordinate system.
It should be noted that frame image coordinate system mentioned here can be understood as the foundation of the resolution ratio based on frame image
Coordinate system；Camera coordinate system can be understood as the resolution ratio based on the effective view-finder of camera (for example, Quick Response Code identification frame)
The coordinate system of foundation.
In practical applications, frame image and camera are respectively provided with corresponding resolution ratio, in order to establish in frame image
The correspondence of each pixel and pixel when camera collection image needs to establish correspondence respectively for frame image and camera
Coordinate system.
Based on correspondence between coordinate system (for example, ratio between frame image coordinate system and camera coordinate system is closed
System is：Abscissa is 100:1, ordinate 200:1), two-dimentional code position in frame image coordinate system can be converted to focusing ginseng
Number, so as to make camera accurately adjust focusing position, so that the camera focusing is to the Quick Response Code location
Domain obtains clearly Quick Response Code.
It should be noted that step number mentioned here is not the limitation to step execution sequence, for example, step
S302 and step S304 may be performed simultaneously.
In this specification one or more embodiment, the camera focusing to the Quick Response Code region, tool
Body may include：The camera focusing to the Quick Response Code boundary determined based on the position sensing figure in the Quick Response Code is surrounded
At least one of region coordinate points.
Quick Response Code region mentioned here, the rectangle region that the position sensing figure being generally based in Quick Response Code determines
Domain includes all images of Quick Response Code in the region.During camera focusing, it can be carried out at least one point pair
Coke usually focuses to the central point of Quick Response Code, or is carried out to the central point of Quick Response Code and four vertex of rectangle
Focusing；Region can also be used to focus, for example, using entire Quick Response Code as focusing area.
In this specification one or more embodiment, the method further includes：If it is determined that not wrapped in the frame image
Containing Quick Response Code, then prompt message is sent out, user is prompted to manually adjust the position relationship of Quick Response Code the identification frame and Quick Response Code.
In practical applications, there are many possible the reason of recognition failures, for example, Quick Response Code is not clear enough or Quick Response Code does not have
Have in frame image or Quick Response Code part is in frame image.Prompt message can be shown by the form of pop-up, or be passed through
Sound is prompted, so that user can adjust the position of camera.Here the position adjusted required for includes：Camera and two
The distance between code, angle etc. are tieed up, so that Quick Response Code can enter in the image-capture field of camera, and can be obtained
Obtain clearly image.
For the ease of understanding above-mentioned two dimension code reading method, it is illustrated with reference to Fig. 4, Fig. 4 is this specification
The flow chart of Quick Response Code is distinguished in the illustration that embodiment provides using mobile phone.
Sentenced in advance using code position module for the frame image got using mobile phone (mobile phone with camera function)
Disconnected frame image whether there is Quick Response Code, and if so, provide the position of Quick Response Code, then again by the location information of Quick Response Code and
Original frame image gives the information reading that yard read module carries out Quick Response Code together, when read module can not read the Quick Response Code
Content when, then Quick Response Code location information is sent to location conversion module, Quick Response Code location information, which is converted to mobile phone, to be taken
Focusing position (including focus point and focusing range) with camera, the focusing that mobile phone changes camera according to these information automatically are joined
Number the Quick Response Code band of position so that camera can accurately focus so that camera to defocused Quick Response Code position than other
Region is more clear, more conducively the read operation of read module.
Based on same thinking, this specification embodiment provides a kind of two dimension code reading device, if Fig. 5 is this specification
A kind of two dimension code reading device that embodiment provides, the device mainly includes：
Acquisition module 501 obtains frame image using camera barcode scanning；
Position determination module 502, however, it is determined that include Quick Response Code in the frame image, it is determined that the two dimension in the frame image
Code position；
Module 503 is distinguished, attempts to distinguish the Quick Response Code, according to the two-dimentional code position if it can not successfully distinguish, is adjusted
The focusing position of the whole camera, so that the camera focusing is to the Quick Response Code region.
Further, the position determination module 502 detects the position sensing figure in the Quick Response Code；
Based on the three position sensing figures detected, the two-dimentional code position in the frame image.
Further, the recognition module 503 turns according to the correspondence of frame image coordinate system and camera coordinate system
It changes the two-dimentional code position and obtains Focusing parameter, wherein the Focusing parameter includes at least one in focusing area size, focus point
It is a；
The focusing position of the camera is adjusted according to the Focusing parameter, so that the camera focusing is to the two dimension
Code region.
Further, further include：Correspondence determining module 504 establishes frame image coordinate according to frame image resolution ratio
System；
According to resolution ratio of camera head, camera coordinate system is established；
According to the proportionate relationship of frame image resolution ratio and resolution ratio of camera head, determine that the frame image coordinate system is taken the photograph with described
As the correspondence of head coordinate system.
Further, the position determination module 502, the position determination module, the camera focusing to described two
Code region is tieed up, is specifically included：
The area that the camera focusing is surrounded to the Quick Response Code boundary determined based on the position sensing figure in the Quick Response Code
At least one of domain coordinate points.
Further, however, it is determined that do not include Quick Response Code in the frame image, then send out prompt message, user is prompted to adjust manually
The position relationship of the whole camera and the Quick Response Code.
Based on same thinking, this specification embodiment also provides a kind of electronic equipment, including：
At least one processor；And
The memory being connect at least one processor communication；Wherein,
The memory is stored with the instruction that can be executed by least one processor, and described instruction is by described at least one
A processor executes, so that at least one processor can：
Frame image is obtained using camera barcode scanning；
If it is determined that including Quick Response Code in the frame image, it is determined that the two-dimentional code position in the frame image；
It attempts to distinguish the Quick Response Code, according to the two-dimentional code position if it can not successfully distinguish, adjusts the camera
Focusing position so that the camera focusing is to the Quick Response Code region.
It is above-mentioned that this specification specific embodiment is described.Other embodiments are in the scope of the appended claims
It is interior.In some cases, the action recorded in detail in the claims or step can be come according to different from the sequence in embodiment
It executes and desired result still may be implemented.In addition, the process described in the accompanying drawings not necessarily require show it is specific suitable
Sequence or consecutive order could realize desired result.In some embodiments, multitasking and parallel processing be also can
With or it may be advantageous.
Each embodiment in this specification is described in a progressive manner, identical similar portion between each embodiment
Point just to refer each other, and each embodiment focuses on the differences from other embodiments.Especially for device,
For electronic equipment, nonvolatile computer storage media embodiment, since it is substantially similar to the method embodiment, so description
It is fairly simple, the relevent part can refer to the partial explaination of embodiments of method.
Device that this specification embodiment provides, electronic equipment, nonvolatile computer storage media with method are corresponding
, therefore, device, electronic equipment, nonvolatile computer storage media also there is the Advantageous similar with corresponding method to imitate
Fruit, since the advantageous effects of method being described in detail above, which is not described herein again corresponding intrument,
The advantageous effects of electronic equipment, nonvolatile computer storage media.
In the 1990s, the improvement of a technology can be distinguished clearly be on hardware improvement (for example,
Improvement to circuit structures such as diode, transistor, switches) or software on improvement (improvement for method flow).So
And with the development of technology, the improvement of current many method flows can be considered as directly improving for hardware circuit.
Designer nearly all obtains corresponding hardware circuit by the way that improved method flow to be programmed into hardware circuit.Cause
This, it cannot be said that the improvement of a method flow cannot be realized with hardware entities module.For example, programmable logic device
(Programmable Logic Device, PLD) (such as field programmable gate array (Field Programmable Gate
Array, FPGA)) it is exactly such a integrated circuit, logic function determines device programming by user.By designer
Voluntarily programming comes a digital display circuit " integrated " on a piece of PLD, designs and makes without asking chip maker
Dedicated IC chip.Moreover, nowadays, substitution manually makes IC chip, this programming is also used instead mostly " patrols
Volume compiler (logic compiler) " software realizes that software compiler used is similar when it writes with program development,
And the source code before compiling also write by handy specific programming language, this is referred to as hardware description language
(Hardware Description Language, HDL), and HDL is also not only a kind of, but there are many kind, such as ABEL
(Advanced Boolean Expression Language)、AHDL(Altera Hardware Description
Language)、Confluence、CUPL(Cornell University Programming Language)、HDCal、JHDL
(Java Hardware Description Language)、Lava、Lola、MyHDL、PALASM、RHDL(Ruby
Hardware Description Language) etc., VHDL (Very-High-Speed are most generally used at present
Integrated Circuit Hardware Description Language) and Verilog.Those skilled in the art also answer
This understands, it is only necessary to method flow slightly programming in logic and is programmed into integrated circuit with above-mentioned several hardware description languages,
The hardware circuit for realizing the logical method flow can be readily available.
Controller can be implemented in any suitable manner, for example, controller can take such as microprocessor or processing
The computer for the computer readable program code (such as software or firmware) that device and storage can be executed by (micro-) processor can
Read medium, logic gate, switch, application-specific integrated circuit (Application Specific Integrated Circuit,
ASIC), the form of programmable logic controller (PLC) and embedded microcontroller, the example of controller includes but not limited to following microcontroller
Device：ARC 625D, Atmel AT91SAM, Microchip PIC18F26K20 and Silicone Labs C8051F320, are deposited
Memory controller is also implemented as a part for the control logic of memory.It is also known in the art that in addition to
Pure computer readable program code mode is realized other than controller, can be made completely by the way that method and step is carried out programming in logic
Controller is obtained in the form of logic gate, switch, application-specific integrated circuit, programmable logic controller (PLC) and embedded microcontroller etc. to come in fact
Existing identical function.Therefore this controller is considered a kind of hardware component, and to including for realizing various in it
The device of function can also be considered as the structure in hardware component.Or even, it can will be regarded for realizing the device of various functions
For either the software module of implementation method can be the structure in hardware component again.
System, device, module or the unit that above-described embodiment illustrates can specifically realize by computer chip or entity,
Or it is realized by the product with certain function.It is a kind of typically to realize that equipment is computer.Specifically, computer for example may be used
Think personal computer, laptop computer, cellular phone, camera phone, smart phone, personal digital assistant, media play
It is any in device, navigation equipment, electronic mail equipment, game console, tablet computer, wearable device or these equipment
The combination of equipment.
For convenience of description, it is divided into various units when description apparatus above with function to describe respectively.Certainly, implementing this
The function of each unit is realized can in the same or multiple software and or hardware when specification one or more embodiment.
It should be understood by those skilled in the art that, this specification embodiment can be provided as method, system or computer program
Product.Therefore, this specification embodiment can be used complete hardware embodiment, complete software embodiment or combine software and hardware
The form of the embodiment of aspect.Moreover, it wherein includes that computer is available that this specification embodiment, which can be used in one or more,
It is real in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form for the computer program product applied.
This specification is with reference to the method, equipment (system) and computer program product according to this specification embodiment
Flowchart and/or the block diagram describes.It should be understood that can be realized by computer program instructions every in flowchart and/or the block diagram
The combination of flow and/or box in one flow and/or box and flowchart and/or the block diagram.These computers can be provided
Processor of the program instruction to all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices
To generate a machine so that the instruction executed by computer or the processor of other programmable data processing devices generates use
In the dress for realizing the function of being specified in one flow of flow chart or multiple flows and/or one box of block diagram or multiple boxes
It sets.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
In a typical configuration, computing device includes one or more processors (CPU), input/output interface, net
Network interface and memory.
Memory may include computer-readable medium in volatile memory, random access memory (RAM) and/or
The forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer-readable medium
Example.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology realizes information storage.Information can be computer-readable instruction, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase transition internal memory (PRAM), static RAM (SRAM), moves
State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable
Programmable read only memory (EEPROM), fast flash memory bank or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM),
Digital versatile disc (DVD) or other optical storages, magnetic tape cassette, tape magnetic disk storage or other magnetic storage apparatus
Or any other non-transmission medium, it can be used for storage and can be accessed by a computing device information.As defined in this article, it calculates
Machine readable medium does not include temporary computer readable media (transitory media), such as data-signal and carrier wave of modulation.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Including so that process, method, commodity or equipment including a series of elements include not only those elements, but also wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that wanted including described
There is also other identical elements in the process of element, method, commodity or equipment.
This specification can describe in the general context of computer-executable instructions executed by a computer, such as journey
Sequence module.Usually, program module include routines performing specific tasks or implementing specific abstract data types, program, object,
Component, data structure etc..Specification can also be put into practice in a distributed computing environment, in these distributed computing environments,
By executing task by the connected remote processing devices of communication network.In a distributed computing environment, program module can
With in the local and remote computer storage media including storage device.
Each embodiment in this specification is described in a progressive manner, identical similar portion between each embodiment
Point just to refer each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so description is fairly simple, related place is referring to embodiment of the method
Part explanation.
The foregoing is merely this specification embodiments, are not intended to limit this application.For those skilled in the art
For, the application can have various modifications and variations.It is all within spirit herein and principle made by any modification, equivalent
Replace, improve etc., it should be included within the scope of claims hereof.
Claims (13)
1. a kind of two dimension code reading method, including：
Frame image is obtained using camera barcode scanning；
If it is determined that including Quick Response Code in the frame image, it is determined that the two-dimentional code position in the frame image；
It attempts to distinguish the Quick Response Code, according to the two-dimentional code position if it can not successfully distinguish, adjusts pair of the camera
Burnt position, so that the camera focusing is to the Quick Response Code region.
2. the method as described in claim 1, the two-dimentional code position in the determination frame image specifically includes：
Detect the position sensing figure in the Quick Response Code；
Based on the three position sensing figures detected, the two-dimentional code position in the frame image is determined.
3. the method as described in claim 1, the focusing position of the adjustment camera, so that the camera focusing is extremely
The Quick Response Code region, specifically includes：
According to the correspondence of frame image coordinate system and camera coordinate system, converts the two-dimentional code position and obtains Focusing parameter,
Wherein, the Focusing parameter includes at least one in focusing area size, focus point；
The focusing position of the camera is adjusted according to the Focusing parameter, so that the camera focusing is to the Quick Response Code institute
In region.
4. the correspondence of method as claimed in claim 3, the frame image coordinate system and camera coordinate system is according to as follows
Mode obtains：
According to frame image resolution ratio, frame image coordinate system is established；
According to resolution ratio of camera head, camera coordinate system is established；
According to the proportionate relationship of the frame image resolution ratio and the resolution ratio of camera head, the frame image coordinate system and institute are determined
State the correspondence of camera coordinate system.
5. method as claimed in claim 4, the camera focusing is specifically included to the Quick Response Code region：
In the region that the camera focusing is surrounded to the Quick Response Code boundary determined based on the position sensing figure in the Quick Response Code
At least one coordinate points.
6. the method as described in claim 1, the method further include：If it is determined that not including Quick Response Code in the frame image, then
Prompt message is sent out, user is prompted to manually adjust the position relationship of the camera and Quick Response Code.
7. a kind of two dimension code reading device, including：
Acquisition module obtains frame image using camera barcode scanning；
Position determination module, however, it is determined that include Quick Response Code in the frame image, it is determined that the two-dimentional code position in the frame image；
Module is distinguished, attempts to distinguish the Quick Response Code, according to the two-dimentional code position if it can not successfully distinguish, is taken the photograph described in adjustment
As the focusing position of head, so that the camera focusing is to the Quick Response Code region.
8. device as claimed in claim 7, the position determination module detect the position sensing figure in the Quick Response Code；
Based on the three position sensing figures detected, the two-dimentional code position in the frame image is determined.
9. device as claimed in claim 7, the recognition module is corresponding with camera coordinate system according to frame image coordinate system
Relationship converts the two-dimentional code position and obtains Focusing parameter, wherein the Focusing parameter includes focusing area size, focus point
In it is at least one；
The focusing position of the camera is adjusted according to the Focusing parameter, so that the camera focusing is to the Quick Response Code institute
In region.
10. device as claimed in claim 9, further includes：Correspondence determining module establishes frame according to frame image resolution ratio
Image coordinate system；
According to resolution ratio of camera head, camera coordinate system is established；
According to the proportionate relationship of frame image resolution ratio and resolution ratio of camera head, the frame image coordinate system and the camera are determined
The correspondence of coordinate system.
11. device as claimed in claim 10, the position determination module, the camera focusing to Quick Response Code place
Region specifically includes：
In the region that the camera focusing is surrounded to the Quick Response Code boundary determined based on the position sensing figure in the Quick Response Code
At least one coordinate points.
12. device as claimed in claim 7, however, it is determined that do not include Quick Response Code in the frame image, then send out prompt message, carry
Show that user manually adjusts the position relationship of the camera and the Quick Response Code.
13. a kind of electronic equipment, including：
At least one processor；And
The memory being connect at least one processor communication；Wherein,
The memory is stored with the instruction that can be executed by least one processor, and described instruction is by least one place
It manages device to execute, so that at least one processor can：
Frame image is obtained using camera barcode scanning；
If it is determined that including Quick Response Code in the frame image, it is determined that the two-dimentional code position in the frame image；
It attempts to distinguish the Quick Response Code, according to the two-dimentional code position if it can not successfully distinguish, adjusts pair of the camera
Burnt position, so that the camera focusing is to the Quick Response Code region.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810247331.3A CN108629220A (en) | 2018-03-23 | 2018-03-23 | A kind of two dimension code reading method, apparatus and equipment |
| TW108100662A TWI740087B (en) | 2018-03-23 | 2019-01-08 | Two-dimensional code reading method, device and equipment |
| PCT/CN2019/072911 WO2019179233A1 (en) | 2018-03-23 | 2019-01-24 | Qr code identifying and reading method and apparatus, and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810247331.3A CN108629220A (en) | 2018-03-23 | 2018-03-23 | A kind of two dimension code reading method, apparatus and equipment |
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| Publication Number | Publication Date |
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| CN108629220A true CN108629220A (en) | 2018-10-09 |
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| CN201810247331.3A Pending CN108629220A (en) | 2018-03-23 | 2018-03-23 | A kind of two dimension code reading method, apparatus and equipment |
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| Country | Link |
|---|---|
| CN (1) | CN108629220A (en) |
| TW (1) | TWI740087B (en) |
| WO (1) | WO2019179233A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| TWI740087B (en) | 2021-09-21 |
| WO2019179233A1 (en) | 2019-09-26 |
| TW201941110A (en) | 2019-10-16 |
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