CN109344944A - Colored marking code and its coding/decoding method - Google Patents
Colored marking code and its coding/decoding method Download PDFInfo
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- CN109344944A CN109344944A CN201811175602.5A CN201811175602A CN109344944A CN 109344944 A CN109344944 A CN 109344944A CN 201811175602 A CN201811175602 A CN 201811175602A CN 109344944 A CN109344944 A CN 109344944A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06046—Constructional details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
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- Engineering & Computer Science (AREA)
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Abstract
The present invention provides a kind of colored marking code and its coding/decoding methods, include: anchor point, color references layer, coding layer, data Layer, terminate mark layer, the anchor point is located at the center of identification code, the color references layer is around anchor point, the coding layer around the color references layer, the data Layer is around the coding layer, and the end mark layer is around the data Layer；Wherein, the color references layer, coding layer, data Layer, end mark layer are made of multiple color points respectively, and the anchor point and each color point include the data information of presetting digit capacity.The present invention can promote the data capacity of identification code unit area, be not necessarily to the complex calculations such as be stretched and distorted when scanning identification code, recognition speed is faster.
Description
Technical field
The present invention relates to planar bar code technology fields, and in particular, to colored marking code and its coding/decoding method.
Background technique
Planar bar code technology is born in the 1940s, but being really widely used is in the eighties in last century.It is close several
Year, due to the promotion of mobile payment, so that two dimensional code is using more and more extensive.Two dimensional code generally uses rectangular configuration, therefore has
The information of standby two dimensions, information content are much larger than common barcode technology.With the development of intelligent mobile terminal, standard configuration
Camera can support the scanning of two dimensional code and bar code so that two dimensional code using very convenient, reliably.
Currently, two dimensional code also shows very big advantage in commodity identification, the information content of carrying is larger, and can be with
The technology of web site url is directly generated, so that two dimensional code is widely used in commodity identification field.
But existing two dimensional code is only identified data with black-and-white two color, unit area information storage is small, and
Rectangular configuration needs to carry out image procossing, and correcting offset and distortion etc. are handled, heavy workload, and recognition speed is slow.In addition, due to every
A two dimensional code needs to be accurately positioned starting point and data point, and data point is more, it is therefore desirable to which the image pixel area of scanning is big, only
Data could accurately be extracted by having large area actively to focus.This also causes in practical applications, it is often necessary to repeatedly adjust and focus
It can just complete to scan with the size of image, scanning speed is slow, and use is very inconvenient.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of colored marking code and its coding/decoding methods.
In a first aspect, the present invention provides a kind of colored marking code, comprising: anchor point, color references layer, coding layer, data
Layer terminates mark layer, and the anchor point is located at the center of identification code, and the color references layer is around anchor point, the volume
Code layer is around the color references layer, and the data Layer is around the coding layer, and the end mark layer is around the data Layer；
Wherein, the color references layer, coding layer, data Layer, end mark layer are made of multiple color points respectively, and the anchor point
It include the data information of presetting digit capacity with each color point.
Optionally, each color point includes the data information of 9 bits, wherein 8 bits are used for characterize data, 1 bit
For making the check bit of data.
Optionally, the color references layer, coding layer, data Layer, end mark layer are outside centered on the anchor point
Diffusion, the quantity for the color point that the remoter layer of Distance positioning point includes are more.
Optionally, the color references layer includes: 6 color points, benchmark of the color of 6 color points as correction
Color.
Optionally, the coding layer includes: 12 color points, wherein the color point of pre-set color is as the coding layer
Starting point, the last one color point of the coding layer is the CRC8 check value of the color point corresponding data of front 11.
Optionally, the data Layer includes 2 layers or 2 layers or more；And most latter two color point in each layer data layer
For the CRC16 check value of corresponding layer data.
Optionally, when the data Layer is multilayer, one layer of new data Layer is often extended to the outside, the new data Layer
The quantity of color point is further added by preset quantity on the basis of preceding layer data Layer.
Optionally, when the data Layer is multilayer, first layer data Layer includes 18 color points, second layer data Layer packet
24 color points are included, third layer data Layer includes 30 color points.
Optionally, the anchor point and the color point are circle.
Second aspect, the present invention provide a kind of coding/decoding method of colored marking code, for any one of first aspect institute
The colored marking code stated is identified, which comprises
It identifies the position of anchor point and color references layer, generates scanning curve function；
Based on the scanning curve function, successively layer-by-layer scanning encoding layer, data Layer, terminate to sweep when terminating mark layer
It retouches, extracts the identification code information of coding layer characterization and the data information of data Layer characterization.
Compared with prior art, the present invention have it is following the utility model has the advantages that
The present invention provides a kind of colored marking code and its coding/decoding methods, comprising: anchor point, color references layer, coding layer,
Data Layer terminates mark layer, and the anchor point is located at the center of identification code, and the color references layer is around anchor point, institute
Coding layer is stated around the color references layer, the data Layer is around the coding layer, and the end mark layer is around the number
According to layer；Wherein, the color references layer, coding layer, data Layer, end mark layer are made of multiple color points respectively, and described
Anchor point and each color point include the data information of presetting digit capacity.The present invention can promote the data of identification code unit area
Capacity is not necessarily to the complex calculations such as be stretched and distorted when scanning identification code, and recognition speed is faster.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the coding principle schematic diagram of colored marking code provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of colored marking code provided in an embodiment of the present invention；
In figure:
1- anchor point；
2- color references layer；
3- coding layer；
4- data Layer；
5- terminates mark layer.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection scope.
Fig. 1 is the coding principle schematic diagram of colored marking code provided in an embodiment of the present invention, as shown in Figure 1, the present embodiment,
Include: anchor point 1, color references layer 2, coding layer 3, data Layer 4, terminate mark layer 5, anchor point 1 is located at the center of identification code
Position, for color references layer 2 around anchor point 1, coding layer 3 around color references layer 2, data Layer 4 terminates mark around coding layer 3
Remember layer 5 around data Layer 4；Wherein, color references layer 2, coding layer 3, data Layer 4, end mark layer 5 are respectively by multiple color points
Composition, and anchor point and each color point include the data information of presetting digit capacity.
Specifically, the anchor point 1 that center is black can be set, indicate the central point of identification code.Around there are 6 to consolidate
The color references layer 2 that fixed color point is constituted, for positioning initial position and color references value, wherein red point position indicates
Beginning position.Third layer is coding layer 3 (global unique encodings), totally 12 points, before 11 points indicate unique encodings, the last one point
For the CRC8 check value of earlier data.4th layer starts to can be any character for the information data of write-in for data Layer 4
The data such as string or network address coding, are also possible to the data of encryption, indicate the CRC16 verification of the layer data in every layer of most latter two point
Value.Outermost layer is to terminate mark layer 5, generally fixed black border circle, for indicating the peripheral shape and data of identification code
End position.
In an optinal plan, each color point may include the data information of 9 bits, wherein 8 bits are for characterizing
Data, 1 bit are used to make the check bit of data.
In the present embodiment, referring to Fig. 1, the black-white point of ordinary QR code can be replaced to indicate data using colored dot,
Each color point can indicate 8bit data, and the check bit with 1bit, therefore, only compared to common one point of two dimensional code
1bit data can be represented, along with other verification redundant digits etc., the unit area data volume of identification code expands 8 in the present embodiment
Times or more.
In addition, each color point for indicating data is circle in the present embodiment, and it is relatively more unified and beautiful on the whole, it realizes
Also it is very easy to.It can directly be come out with common color printer print.Referring to Fig. 1,7 dots can be equipped in centre bit
Indicate center and data start position, and the color of 7 dots is the Data Color of standard, it can be in image procossing
It is used as color references, for correcting the misalignment of each printing device, identification is facilitated to use.
Specifically, as shown in table 1, the color of each color point is divided into the combination of RGB three primary colours color value, each primary colours
3bit, 8 rank depths are substantially all common colour imagery shot the color discrimination performance energy with 6-8bit, it is easy to
Division identification goes out the data of dot.Each dot data combine and have 9bit, wherein the last one bit expression front 8bit
The odd of data verifies the complete of earlier data.
Table 1
| Color | R0 | R1 | R2 | G0 | G1 | G2 | B0 | B1 | B2 |
| Data | Bit7 | Bit6 | Bit5 | Bit4 | Bit3 | Bit2 | Bit1 | Bit0 | ODD |
In table 1, R0, R1, R2 respectively indicate three kinds of different red of the depth, and G0, G1, G2 respectively indicate different three of the depth
Kind green, B0, B1, B2 respectively indicate three kinds of different blues of the depth.Each color point is divided into tri- kinds of primary colours colors of RGB, each
Primary colours are divided into 3bit data, that is, each color is divided into 8 ranks and indicates.It is data bit below corresponding table, last blue
The highest colour bits of B2 indicate check bit ODD, are odd.
In an optinal plan, color references layer 2, data Layer 4, terminates mark layer 5 centered on anchor point 1 at coding layer 3
To external diffusion, the quantity for the color point that the remoter layer of Distance positioning point 1 includes is more.
In the present embodiment, using circular configuration label, spread around from center, center is as anchor point and color
Datum mark uses, and as the increase of data volume successively increases dot quantity, therefore is not limited by data volume size.In image recognition
Upper circular configuration is easier to carry out handling, and recognition speed is faster.
In an optinal plan, it is 6 color points that color references layer, which can be set, and the color of 6 color points is as correction
Base colors.Coding layer includes: 12 color points, wherein starting point of the color point of pre-set color as coding layer, coding
The last one color point of layer is the CRC8 check value of the color point corresponding data of front 11.Data Layer includes 2 layers or 2 layers
More than；And most latter two color point in each layer data layer is the CRC16 check value of corresponding layer data.
It is black color dots in one, center dot in the present embodiment, indicates that central point, the second layer are 6 correction of color points, the
Wherein 11 points indicate the unique encodings of label to three layers of 12 dot, and the coding that each label is generated in printing must be the whole world
Unique encodings, the ID as the fixed identification of each label, which is numbered, to be used.The last one dot is the data of 11 dots in front
CRC8 check value.Since each dot indicates 1 byte 8bit data, the maximum representation number word numbered in this way is the 26 of 3.1*10
Power will not be reused in the short time.
It should be noted that often extending to the outside one layer of new data Layer, the coloured silk of new data Layer when data Layer is multilayer
The quantity of color dot is further added by preset quantity on the basis of preceding layer data Layer.
In an optinal plan, when data Layer is multilayer, first layer data Layer includes 18 color points, the second layer data
Layer includes 24 color points, and third layer data Layer includes 30 color points.
It is every to increase by one layer of points increase by 6 in the present embodiment.Most latter two point of each layer data is the layer data
CRC16 check value thereby may be ensured that the reliability of each layer data.The data of each point can be English, number or special
Character, two points can indicate that a Chinese character, data capacity are very big.
Specifically, as shown in Fig. 2, the intermediate anchor point for black can be set, 6 color points of anchor point surrounding (are used for
Correction of color), wherein the expression data start of red point.Third layer is coding layer, and the data of characterization are 16 systems
0123456789ABCDEF4321 data.Data Layer can be multilayer, to characterize character string network address, wherein vacant position with
The filling of space data.Outmost turns are mark end layer, are generally indicated using black dot, for limiting the shape and knot of identification code
Beam position.
In addition, the present invention provides a kind of coding/decoding method of colored marking code, for knowing to colored marking code above-mentioned
Not, method includes:
Step 1: the position of identification anchor point and color references layer generates scanning curve function.
Step 2: being based on scanning curve function, successively layer-by-layer scanning encoding layer, data Layer, terminate when terminating mark layer
Scanning extracts the identification code information of coding layer characterization and the data information of data Layer characterization.
In the present embodiment, end layer can be identified plus the circle of one layer of black in outer ring, to indicate data
End, to carry out calculation process when facilitating image recognition.Since this label shape is circular configuration, in identification
The localization process for first carrying out center and periphery, generates scanning curve function, directly reads each layer colour using this function and counts
According to the stretching and distortion for not needing progress image are handled, and are reduced the data processing amount of identification, are improved recognition speed.
Colored marking code and its coding/decoding method in the present invention can be applied in numerous areas.
Application scenarios one: it in unmanned retail trade, is attached at the top of commodity packaging using this color label, is set by identification
It is standby to be scanned processing identification commodity, the title and attribute of commodity can be quickly recognized, and can determine each commodity
Unique encodings provide processing of being settled accounts or made an inventory from the background.Since this color-coded tags identifying processing is very simple, height is not needed
Miscellaneous image processing equipment is replied immediately, equipment can be identified using 32 arm processor identifications of low cost, cooperation gravity, determine every
The quantity and product characteristics of column commodity can be conducive to push unmanned retail hair with identifying processing immediately after user takes commodity away
Exhibition.This colour code application scheme does not need high image processor and artificial intelligence and calculates equipment, and input cost is low, reliably
Property it is high, while not needing a large amount of image data of communication transfer, directly can greatly reduce operation cost with processing locality, be
The current unmanned most reliable lower cost solution in retail market.
Application scenarios two: in logistics management, each article is identified using this colored speed code, camera can be passed through
Quickly scanning carries out automated sorting.It, can be same with multiple labels since colour code recognition speed is much higher than common two dimensional code
When scan, can be greatly improved in sorting speed.Camera on mobile terminals is color high-definition video camera, due to colour
Code area is small, and element is few, and camera can greatly improve user experience with rapid scan acquisition image, is conducive to improve and answer
With the performance of software.Because each label all has unique encodings, even if same article can distinguish different individuals
Characteristic, it is possible to which the function of tracing to the source of realizing each article is conducive to logistic track.
Application scenarios three: in various industrial production lines, this coloured silk is installed on the pallet of each component or loading part
Colour coding can be identified quickly and be automatically sent to corresponding position, realize the inner components management of automation.In storage, by
In quick image scanning identification article may be implemented, may be implemented to be put in storage outbound management automatically, while realizing and making an inventory automatically
Operation is conducive to improve the efficiency of management, reduces fault rate.It can also be colored by identification in the not stringent producing line of some requirements
The position of code positions article, carries out full-automatic feeding blanking, realizes that unmanned factory produces function automatically.
The advantages of colored marking code and its coding/decoding method provided by the invention and effect are as follows:
1, data being indicated using colored dot, data capacity is big, and occupancy number of pixels is few, and area is small, and image procossing is simple,
Most of mobile device all supports Color Image Acquisition, can make full use of existing equipments resources.
2, circular configuration is conducive to image procossing, does not need the complex calculations processing such as to be stretched and distorted, it is only necessary to raw
At scanning recognition function, in addition information point is few, and data judgement is simple, and recognition speed is fast.From center diffusion way around, logarithm
According to amount, there is no limit can store mass data.
3, since each label does not need to carry out specially treated to general image, it is only necessary to which generating recognition function can be fast
Speed identification realizes batch scanning effect so can identify multiple colour codes in same image.
4,7, center standard point determines position, and periphery termination circle determines range, and positioning is simple and reliable, improves scanning
Speed, while misalignment is automatically corrected, the quality problems of printing device are avoided, application is simpler.
5, there are fixed unique encodings among data, can directly indicate the uniqueness of each label, cannot repeat
It uses, is conducive to earnest product the Uniqueness really in Internet of Things application.
6, each layer data has CRC check, while each dot data also carries bit check function, it is ensured that
Data it is complete reliable, implementation method is simple, and not too many redundant data increases data capacity, improves recognition speed.
Data are distinguished using color, but also label seems more beautiful, the bar code and two dimensional code than black and white are easier circular configuration
It is easily accepted by a user.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (10)
1. a kind of colored marking code characterized by comprising anchor point, coding layer, data Layer, terminates label at color references layer
Layer, the anchor point are located at the center of identification code, and the color references layer is around anchor point, the coding layer around described
Color references layer, the data Layer is around the coding layer, and the end mark layer is around the data Layer；Wherein, the face
Color datum layer, coding layer, data Layer, end mark layer are made of multiple color points respectively, and the anchor point and each colour
Point includes the data information of presetting digit capacity.
2. colored marking code according to claim 1, which is characterized in that each color point includes the data information of 9 bits,
Wherein, 8 bits are used for characterize data, and 1 bit is used to make the check bit of data.
3. colored marking code according to claim 1, which is characterized in that the color references layer, coding layer, data Layer,
Terminate the quantity for the color point that mark layer includes to external diffusion, the remoter layer of Distance positioning point centered on the anchor point more
It is more.
4. colored marking code according to claim 1, which is characterized in that the color references layer includes: 6 color points,
Base colors of the color of 6 color points as correction.
5. colored marking code according to claim 1, which is characterized in that the coding layer includes: 12 color points,
In, starting point of the color point of pre-set color as the coding layer, the last one color point of the coding layer is front 11
The CRC8 check value of a color point corresponding data.
6. colored marking code according to claim 1, which is characterized in that the data Layer includes 2 layers or 2 layers or more；
And most latter two color point in each layer data layer is the CRC16 check value of corresponding layer data.
7. colored marking code according to claim 6, which is characterized in that every to extending out when the data Layer is multilayer
One layer of new data Layer is opened up, the quantity of the color point of the new data Layer is further added by default on the basis of preceding layer data Layer
Quantity.
8. colored marking code according to claim 6, which is characterized in that when the data Layer is multilayer, first number of plies
Include 24 color points including 18 color points, second layer data Layer according to layer, third layer data Layer includes 30 color points.
9. colored marking code according to claim 1 to 8, which is characterized in that the anchor point and the colour
Point is circle.
10. a kind of coding/decoding method of colored marking code, which is characterized in that for coloured silk of any of claims 1-9
Color identification code is identified, which comprises
It identifies the position of anchor point and color references layer, generates scanning curve function；
Based on the scanning curve function, successively layer-by-layer scanning encoding layer, data Layer, terminate to scan when terminating mark layer,
Extract the identification code information of coding layer characterization and the data information of data Layer characterization.
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