CN106934317A - Bar code scan recognition methods and device - Google Patents
Bar code scan recognition methods and device Download PDFInfo
- Publication number
- CN106934317A CN106934317A CN201511008978.3A CN201511008978A CN106934317A CN 106934317 A CN106934317 A CN 106934317A CN 201511008978 A CN201511008978 A CN 201511008978A CN 106934317 A CN106934317 A CN 106934317A
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- China
- Prior art keywords
- bar code
- channel
- light
- blue
- green
- Prior art date
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Classifications
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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
- G06K7/1413—1D bar codes
-
- 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
Abstract
The present invention relates to a kind of bar code scan recognition methods, the method includes providing the bar code with least two colouring informations formed on the basis of one-dimensional bar code；The reflected light of bar code is received using the imageing sensor with least two Color Channels；And the data message that the light luminance identification bar code received according to each Color Channel is included.Moreover, it relates to a kind of corresponding bar code scan identifying device.By scanning recognition method and apparatus of the invention, the data message included in colour barcode can be in a straightforward manner determined.
Description
Technical field
The present invention relates to barcode scanning field, in particular it relates to a kind of bar code scan recognition methods and
A kind of bar code scan identifying device.
Background technology
Existing barcode scanning gun is only focused in the monochrome information of bar code reflected light, does not gather bar code
The colouring information of reflection.Its imageing sensor for using all band absorption.When illumination is mapped to
When in bar code, light leads to by returning to barcode scanning gun, barcode scanning gun after the reflection of the bar in bar code and sky
Cross internal specific module and optical signal is switched into electric signal, then digitized map is formed by analog-to-digital conversion
Picture.This mode can not provide colouring information necessary to identification polychrome bar code, it is therefore desirable to replace
Change the imageing sensor for being obtained in that colour information.
In order to recognize polychrome bar code and correctly translate, it is necessary to identify each by barcode scanning gun
Correct color., it is necessary to select specific light source to be mended during using barcode scanning gun identification polychrome bar code
Light, to obtain the image with enough brightness and enough color saturations.
However, the compensation light that existing barcode scanning gun system is provided is monochromatic light, usually using white
Light or feux rouges.For common bar code, using monochrome compensation just in order to improve bar with sky
Luminance contrast distinguishes the purpose of bar dummy section to reach.But, if will be made using monochromatic light
For compensate light barcode scanning gun be used for colour barcode, then due to correctly to distinguish colouring information need according to
Rely more complicated algorithm.
The content of the invention
In order to rapidly and accurately determine the color of the bar in colour barcode, and without complexity
Algorithm, it is necessary to propose a kind of bar code scan recognition methods of optimization and corresponding device.
In order to realize the purpose of the present invention, the first aspect of the present invention is swept there is provided a kind of bar code
Recognition methods is retouched, methods described includes：There is provided on the basis of one-dimensional bar code formed with extremely
Few two kinds of bar codes of colouring information；Received using the imageing sensor with least two Color Channels
The reflected light of the bar code；And the light luminance received according to each Color Channel recognizes the bar code
Comprising data message.By above-mentioned method, directly can be received according to each Color Channel
Light luminance determine data message, so as to avoid using complicated calculation for distinguishing color
Method.
According to a kind of implementation method of bar code scan recognition methods of the invention, the bar
At least two colouring informations of code include at least one in blue and green, using logical with blueness
The imageing sensor of road and green channel receives the reflected light of the bar code.
According to a kind of implementation method of bar code scan recognition methods of the invention, the side
Method also includes：Blue and green mixed light is used to irradiate the bar code to form the reflection
Light.In this way, the light-supplementing system of barcode scanning gun uses blue light and green light as compensation
Light, this bluish-green light-supplementing system contains blue, green, blue and other certain face for identification
Color, green and other certain colors and have simultaneously bluish-green and other certain colors bar codes or
Quick Response Code is all suitable for.That is, green during bar code can be quickly recognized in this way
Vitta and blue bar.
According to a kind of implementation method of bar code scan recognition methods of the invention, using only
Imageing sensor with blue channel and green channel receives the reflected light of the bar code, described mixed
Blue light in closing light corresponds to the blue channel, and the green light in the mixed light corresponds to institute
State green channel.
According to a kind of implementation method of bar code scan recognition methods of the invention, the indigo plant
Chrominance channel is distributed in the same row at some intervals, and the green channel is positioned adjacent to blue channel
One row.
According to a kind of implementation method of bar code scan recognition methods of the invention, the indigo plant
Chrominance channel is distributed in the same a line at some intervals, and the green channel is positioned adjacent to blue channel
Another row.
According to a kind of implementation method of bar code scan recognition methods of the invention, the indigo plant
Chrominance channel is diagonally distributed, and the green channel is along perpendicular to the another of the blue channel direction
Pair of horns directional spreding.
According to a kind of implementation method of bar code scan recognition methods of the invention, the side
Method also includes：White light is used to irradiate the bar code to form the reflected light.
The second aspect of the present invention provides a kind of bar code scan identifying device, wherein, the bar
Code is the bar code with least two colouring informations formed on the basis of one-dimensional bar code, the bar code
Scanning recognition device includes：Imageing sensor, described image sensor is logical with least two colors
Road, described image sensor is used to receive the reflected light of the bar code and according to each Color Channel institute
The light luminance of reception recognizes the data message that the bar code is included.
According to a kind of implementation method of bar code scan identifying device of the invention, the bar code
At least two colouring information at least one that includes in blue and green, described image sensing
Utensil has blue channel and green channel.
According to a kind of implementation method of bar code scan identifying device of the invention, the bar code
Scanning recognition device also includes the first compensatory light, first compensatory light be used to launching it is blue and
The mixed light of green, to irradiate the bar code and form the reflected light.
According to a kind of implementation method of bar code scan identifying device of the invention, only with indigo plant
The described image sensor of chrominance channel and green channel is used to receive the reflected light of the bar code,
Blue light in the mixed light corresponds to the blue channel, the green light pair in the mixed light
Green channel described in Ying Yu.
According to a kind of implementation method of bar code scan identifying device of the invention, the blueness
Passage is distributed in the same row at some intervals, and the green channel is positioned adjacent to the one of blue channel
Row.
According to a kind of implementation method of bar code scan identifying device of the invention, the blueness
Passage is distributed in the same a line at some intervals, and the green channel is positioned adjacent to the another of blue channel
A line.
According to a kind of implementation method of bar code scan identifying device of the invention, the blueness
Passage is diagonally distributed, and the green channel is along perpendicular to the another of the blue channel direction
Diagonally opposed distribution.
According to a kind of implementation method of bar code scan identifying device of the invention, the bar code
Scanning recognition device also includes the second compensatory light, and second compensatory light is used to launch white
Light, to irradiate the bar code and form the reflected light.
In sum, bar code scan recognition methods of the invention and bar code scan identifying device
The data message included in colour barcode can in a straightforward manner be determined.
Brief description of the drawings
Embodiments of the invention are explained further with reference to following accompanying drawing and explanation, wherein：
Fig. 1 shows a kind of schematic diagram of the Color Channel of the imageing sensor in barcode scanning gun；
Fig. 2 shows the bar code scan recognition methods of an implementation method of the invention
Flow chart；
Fig. 3 is shown in the bar code scan identifying device of an implementation method of the invention
The schematic diagram of the Color Channel of imageing sensor；
Fig. 4 is shown in bar code scan identifying device according to another implementation of the invention
Imageing sensor Color Channel schematic diagram；And
Fig. 5 is shown in the bar code scan identifying device of yet another embodiment of the invention
Imageing sensor Color Channel schematic diagram.
Specific embodiment
In the specific descriptions of following preferred embodiment, will be a part of with reference to the present invention is constituted
Appended accompanying drawing.Appended accompanying drawing be illustrated by way of example can realize it is of the invention
Specific embodiment.The embodiment of example is not intended as limit all implementations of the invention
Example.It is appreciated that without departing from the scope of the present invention, it is possible to use other implementations
Example, it is also possible to carry out structural or logicality modification.Therefore, specific descriptions below are simultaneously
It is nonrestrictive, and the scope of the present invention is defined by the claims appended hereto.
In order to recognize the color of the bar in colour barcode, it is necessary to using with multiple color passage
Imageing sensor.For example there can be three kinds of imageing sensors of Color Channel using known
Barcode scanning gun.Fig. 1 shows the signal of the Color Channel of the imageing sensor in this barcode scanning gun
Figure.
As shown in figure 1, for colour barcode, it is necessary to using (green with R (red), G
Color), three sensors of passage of B (blueness), that is, there is specific module to absorb red band
Light, specific module absorbs the light of green band, and specific module absorbs the light of blue wave band.
Traditional sensor photosensitive array is referred to as Bayer arrays, i.e., represent one by four photo-sensitive cells
The RGB combination of individual pixel, it is green band photo-sensitive cell to have two in this four photo-sensitive cells,
One is blue wave band photo-sensitive cell, and one is red band photo-sensitive cell.
Fig. 2 shows the bar code scan recognition methods of an implementation method of the invention
Flow chart.
As shown in Fig. 2 in step s 201, there is provided formed on the basis of one-dimensional bar code
The bar code with least two colouring informations.
Preferably, at least two colouring informations of the bar code include at least in blue and green
Kind.For example include blue, green, blue and other certain colors, green and other certain face
Color and include the bar code of bluish-green and other certain colors simultaneously, for example preferably include it is blue,
Green and black, or blue, green and brown.Wherein, reflection of the blue bar to blue light is strong,
Reflection of the green bar to green glow is strong.When bluish-green light source is radiated in polychrome bar code, green bar is only anti-
The light of green band is penetrated, sensor is most strong in the green band reflected light that relevant position receives,
Blue wave band reflected light is theoretically zero；The light of blue bar reflection blue wave band, sensor exists
The blue wave band reflected light that relevant position receives is most strong, and green band reflected light is theoretically
Zero；The bar of non-blue green is not due to reflecting blue light green glow, therefore sensor connects in relevant position
The blue wave band reflected light and green band reflected light for receiving are zero in theory；White space meeting
The light of reflection blue wave band and the light of green band, therefore sensor receives on relevant position
Blue wave band reflected light and green band reflected light it is more strong.Therefore bluish-green light source scanning
Rifle can show blue bar in polychrome bar code with green bar in brightness of image, i.e., blue
Bar can be higher than the bar of other colors with the brightness of green bar, but still can be less than white space
Brightness.
In step S202, received using the imageing sensor with least two Color Channels
The reflected light of the bar code.
Preferably, using with or only there is the imageing sensor of blue channel and green channel
To receive the reflected light of bar code.The blue channel is used to receiving blue light in mixed light, and the green
Passage is used to receive the green glow in mixed light.Because can not be used in bar code according to GB
Red channel in red, therefore traditional Bayer array does not work actually, can make on the contrary
Into the waste on area.Therefore cancel red channel, strengthen only with blue, green passage to it is blue,
The absorption of green glow.
In step S203, according to institute in the light luminance identification bar code that each Color Channel is received
Comprising data message.
Additionally, the method shown in Fig. 2 can also include being shone using blue and green mixed light
The step of bar code is penetrated to form reflected light.This sweeps with traditional use white light or the monochromatic of feux rouges
Code scheme compares the speed that improve and identify blue bar or green bar.However, of the invention
Method also can irradiate bar code using traditional white light.
Method corresponding to being shown in Fig. 2, present invention provides a kind of identification of bar code scan
Device.It includes the imageing sensor with least two Color Channels, such as with blue channel
With the imageing sensor of green channel.The imageing sensor is used to receive the reflected light and root of bar code
The light luminance that is received according to each Color Channel recognizes the data message that bar code is included.Additionally,
The bar code scan identifying device also includes the first compensatory light and/or the second compensatory light.This first
Compensatory light is used to launch blue and green mixed light, and second compensatory light is used to launch
White light.
Fig. 3 is shown in the bar code scan identifying device of an implementation method of the invention
The schematic diagram of the Color Channel of imageing sensor.
As shown in figure 3, blue channel is distributed in the same row at some intervals, and green channel position
In the row adjacent to blue channel.Specifically, first row and the 3rd row in be disposed with eight it is green
Chrominance channel, and it is disposed with eight blue channels in secondary series and the 4th row.That is green channel and indigo plant
Chrominance channel is respectively distributed at least one row being spaced.
Fig. 4 is shown in bar code scan identifying device according to another implementation of the invention
Imageing sensor Color Channel schematic diagram.
As shown in figure 4, blue channel is distributed in the same a line at some intervals, and green channel position
In another row adjacent to blue channel.Specifically, eight are disposed with the first row and the third line
Green channel, and eight blue channels are disposed with the second row and fourth line.I.e. green channel and
Blue channel is respectively distributed at least one row being spaced.
Fig. 5 further illustrates the bar code scan identification of yet another embodiment of the invention
The schematic diagram of the Color Channel of the imageing sensor in device.
As shown in figure 5, blue channel is diagonally distributed, and green channel is along perpendicular to indigo plant
Another diagonally opposed distribution in chrominance channel direction.Specifically, a diagonal and with the diagonal
Separately and eight blue channels are set on parallel parallel lines, and in another diagonal and
With another diagonal separately and eight green channels are set on parallel parallel lines.
Although showing the specific of eight blue channels and eight green channels in Fig. 3 to Fig. 5
Arrangement mode, but this is not limiting upon the present invention.Blue channel and green channel it is any number of
With arbitrary arrangement mode all within protection scope of the present invention.
Although the foregoing describing specific embodiment of the invention, technology in the art
Personnel can within the scope of the appended claims make various changes and modifications.
Claims (16)
1. a kind of bar code scan recognition methods, it is characterised in that methods described includes：
- bar code with least two colouring informations formed on the basis of one-dimensional bar code is provided；
- using the reflection of the imageing sensor reception bar code with least two Color Channels
Light；And
- the light luminance received according to each Color Channel recognizes the data message that the bar code is included.
2. bar code scan recognition methods according to claim 1, it is characterised in that described
At least two colouring informations of bar code include at least one in blue and green, using with blueness
The imageing sensor of passage and green channel receives the reflected light of the bar code.
3. bar code scan recognition methods according to claim 2, it is characterised in that described
Method also includes：
- bar code described in blue and green mixing light irradiation is used to form the reflected light.
4. bar code scan recognition methods according to claim 3, it is characterised in that use
Only there is the reflected light of the imageing sensor reception bar code of blue channel and green channel, it is described
Blue light in mixed light corresponds to the blue channel, and the green light in the mixed light corresponds to
The green channel.
5. bar code scan recognition methods according to claim 4, it is characterised in that described
Blue channel is distributed in the same row at some intervals, and the green channel is positioned adjacent to blue channel
A row.
6. bar code scan recognition methods according to claim 4, it is characterised in that described
Blue channel is distributed in the same a line at some intervals, and the green channel is positioned adjacent to blue channel
Another row.
7. bar code scan recognition methods according to claim 4, it is characterised in that described
Blue channel is diagonally distributed, and the green channel is along perpendicular to the blue channel direction
Another diagonally opposed distribution.
8. bar code scan recognition methods according to claim 1, it is characterised in that described
Method also includes：
- bar code described in white light irradiation is used to form the reflected light.
9. a kind of bar code scan identifying device, it is characterised in that the bar code is one-dimensional bar code
On the basis of formed the bar code with least two colouring informations, the bar code scan identifying device bag
Include：
Imageing sensor, described image sensor has at least two Color Channels, and described image is passed
Sensor is used to receiving the reflected light of the bar code and bright according to the light that each Color Channel is received
Spend to recognize the data message that the bar code is included.
10. bar code scan identifying device according to claim 9, it is characterised in that described
At least two colouring information of bar code includes at least one in blue and green, described image
Sensor has blue channel and green channel.
11. bar code scan identifying devices according to claim 10, it is characterised in that institute
Stating bar code scan identifying device also includes the first compensatory light, and first compensatory light is used to launch
Blue and green mixed light, to irradiate the bar code and form the reflected light.
12. bar code scan identifying devices according to claim 11, it is characterised in that only
Described image sensor with blue channel and green channel is used to receive described in the bar code
Reflected light, the blue light in the mixed light corresponds to the blue channel, in the mixed light
Green light corresponds to the green channel.
13. bar code scan identifying devices according to claim 12, it is characterised in that institute
The same row that blue channel is distributed in some intervals is stated, the green channel is positioned adjacent to blue logical
One row in road.
14. bar code scan identifying devices according to claim 12, it is characterised in that institute
Same a line that blue channel is distributed in some intervals is stated, the green channel is positioned adjacent to blue logical
Another row in road.
15. bar code scan identifying devices according to claim 12, it is characterised in that institute
State blue channel to be diagonally distributed, the green channel is along perpendicular to the blue channel direction
Another diagonally opposed distribution.
16. bar code scan identifying devices according to claim 9, it is characterised in that described
Bar code scan identifying device also includes the second compensatory light, and second compensatory light is used to launch white
Coloured light, to irradiate the bar code and form the reflected light.
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| CN201511008978.3A CN106934317A (en) | 2015-12-29 | 2015-12-29 | Bar code scan recognition methods and device |
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| CN201511008978.3A CN106934317A (en) | 2015-12-29 | 2015-12-29 | Bar code scan recognition methods and device |
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| CN113432285A (en) * | 2021-06-28 | 2021-09-24 | 珠海格力电器股份有限公司 | Air conditioner networking method, networking device, remote controller and air conditioner system |
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Application publication date: 20170707 |