CN109376566A - Reading code wall and its setting method based on array camera - Google Patents
Reading code wall and its setting method based on array camera Download PDFInfo
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- CN109376566A CN109376566A CN201811519180.9A CN201811519180A CN109376566A CN 109376566 A CN109376566 A CN 109376566A CN 201811519180 A CN201811519180 A CN 201811519180A CN 109376566 A CN109376566 A CN 109376566A
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- 238000005070 sampling Methods 0.000 claims description 3
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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
- G06K7/10544—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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Abstract
The present invention proposes that a kind of reading code wall and its setting method based on array camera, device are characterised by comprising: the camera that the two or more being arranged on reading code wall is arranged in array, each camera are respectively connected to reading device；The depth of field of each camera is identical with field range.The clear acquisition of more remote and large range of two-dimension code image is realized by the depth of field of camera, the abundant covering that field range is realized by the camera layout of array, as long as accomplishing that having the lesser camera of field range to collect complete two-dimension code image can be realized reading code function.It is especially suitable for freeway toll station or the charge station in parking lot etc. and shows payment code side being inconvenient to move occasion to cooperate code reader, relatively simple device can be passed through, it realizes superior long-range reading code effect, has expanded the convenience and application range of mobile payment system significantly.
Description
Technical field
The present invention relates to scanning device fields more particularly to a kind of based on the reading code wall of array camera and its setting side
Subtraction unit.
Background technique
For existing code reader, the scheme for being substantially short distance reading code of use.Currently since mobile-phone payment is a large amount of
It uses, for some scenes for requiring remote reading code, existing equipment is no longer satisfied requirement, for example receives in highway
In the application scenarios for taking the charge station in station or parking lot, driver needs the close alignment code reading device of mobile phone can just read code,
Very inconvenient use.
Summary of the invention
Present invention seek to address that existing technical problem, using the scheme of reading code wall, allow disburser's cellphone code against reading code
The direction of wall, cellphone code can be easily read into, can easily complete to pay.
In order to solve the problems, such as that defect and deficiency of the existing technology, the present invention specifically use following technical scheme:
A kind of reading code wall based on array camera characterized by comprising the two or more on reading code wall is set in battle array
The camera of arrangement is arranged, each camera is respectively connected to reading device；The depth of field and visual field model of each camera
It encloses identical.
Preferably, all cameras are distributed on a curved surface.
Preferably, all cameras are distributed in one plane.
Preferably, the inside for the figure that the field range of all cameras is constituted on the perspective plane of depth of field near point does not have
There is gap.
Preferably, the optical axis of all cameras is vertical with reading code wall.
Preferably, the depth of field of the camera is 300mm ~ 1200mm.
Preferably, the front of the reading code wall is provided with identification region；The front border of the identification region is all camera shootings
The face that the depth of field near point of head is constituted, the face that back boundary is made of the depth of field far point of all cameras；The identification region
Left margin and right margin and coboundary and lower boundary are determined by the field range for being located at the camera of array edges.
Preferably, the supplementary lighting sources of connection photosensitive sensor are provided on the reading code wall.
And the setting method of the reading code wall based on the above array camera, which comprises the following steps:
Step S1: identification region delimited according to the application scenarios of barcode scanning identification；
Step S2: the depth of field needed is determined according to the width between the front border and back boundary of identification region, and is joined according to the depth of field
Number apolegamy camera；
Step S3: according to the Free Region range of the application scenarios of barcode scanning identification, in the front setting reading code wall of identification region；
Step S4: the cone that is spatially constituted according to the field range of all cameras where depth of field near point with light
The inside for the figure that the projection of the vertical plane of axis is constituted does not have gap, and the visual field model of the camera positioned at array edges
The requirement for enclosing left margin and right margin, coboundary and lower boundary greater than the identification region determines the array being arranged on reading code wall
Boundary, quantity and the density of multiple cameras of arrangement.
Preferably, in step sl, count greatly by the appearance position of two dimensional code in the application scenarios that identify barcode scanning
According to sampling, identification region delimited according to probability distribution range or according to whole ranges of the sample after rejecting abnormalities sample.
The present invention and its preferred embodiment provide a kind of remote reading code scheme based on array camera, by taking the photograph
As the depth of field of head realizes more remote and large range of two-dimension code image clear acquisition, the camera for passing through array is laid out
The abundant covering of field range is realized, as long as accomplishing there is the lesser camera of field range to collect complete two dimensional code
Reading code function can be realized in picture.It is especially suitable for freeway toll station or the charge station in parking lot etc. and shows payment code side not
It is moved easily the occasion to cooperate code reader, can realize superior long-range reading code effect, significantly by relatively simple device
The convenience and application range of mobile payment system are expanded.
Detailed description of the invention
The present invention is described in more detail with reference to the accompanying drawings and detailed description:
Fig. 1 is 1 external structure front schematic view of the embodiment of the present invention；
Fig. 2 is 1 camera field range schematic side view of the embodiment of the present invention；
Fig. 3 is the field range contrast schematic diagram 1 of the camera that the embodiment of the present invention 1 uses and existing conventional design；
Fig. 4 is the field range contrast schematic diagram 2 of the camera that the embodiment of the present invention 1 uses and existing conventional design；
Fig. 5 is the optics meaning schematic diagram of the depth of field；
1 internal structure stereoscopic schematic diagram of Fig. 6 embodiment of the present invention；
1 overall plan stereoscopic schematic diagram of Fig. 7 embodiment of the present invention；
The 3D textures schematic diagram of 1 overall plan of Fig. 8 embodiment of the present invention；
1 overall plan front schematic view of Fig. 9 embodiment of the present invention；
2 overall plan stereoscopic schematic diagram of Figure 10 embodiment of the present invention；
In figure: 1- reading code wall；2- camera；11- field range (prior art)；12- hole；21- field range；22-
The covered face of depth of field near point；The covered face of 23- depth of field far point；3- reading device.
Specific embodiment
For the feature and advantage of this patent can be clearer and more comprehensible, 2 embodiments is cited below particularly, and cooperate attached drawing, makees detailed
Carefully it is described as follows:
As shown in figs. 1-9, in the 1st embodiment of the invention, device includes: reading code wall 1, and is arranged in reading code wall
Reading code identification device on 1.
As shown in Figure 1, wherein an optinal plan of reading code wall 1 is the plate of the hole 12 with array arrangement, it can
To be made using the including but not limited to stable and firm a variety of materials such as timber, stainless steel, aluminium alloy, plastic plate,
It purpose is set is only that and provide the external frame of installation for the camera 2 in reading code identification device, hole 12 is for installing and setting
Camera 2 is set, while some eye-catching features can be had both, with convenient for users to can quickly be looked in the scene for needing reading code
Position to where reading code wall 1, therefore its color has enough contrasts it is preferably provided as eye-catching monochrome and with ambient enviroment color, and
Its front can be provided with the supplementary lighting sources of lighting device (such as LED light strip) or setting connection photosensitive sensor, it is convenient at night
Between environment identification.
It should be noted that in the present embodiment, reading code wall 1 is not necessarily to only meet peace using slab construction
It can be in a plane mounted in each camera 2 thereon, and not block the field range 21 of camera 2.
For reading code identification device, in the conventional reading code identification device of the prior art, there are two big important differences:
1, as shown in Fig. 2, Fig. 3, Fig. 4, Fig. 7, the more conventional reading code camera of field range 21 for the camera 2 that the present embodiment uses
2 field range 11 be it is small, depth of field near point, depth of field far point and the depth of field are then much larger than conventional reading code camera 2, such as conventional reading code
Equipment, the depth of field is generally 50mm-250mm, and this embodiment scheme is using camera 2 of 300mm-1200mm
It can ensure on the one hand good such setting ensure that on the other hand the clarity of more remote reading code ensure that
In longer-distance situation, ratio of the code to be identified in visual field is unlikely to too small, and guarantee can with enough pixel resolutions
It is identified.
2, as shown in Fig. 6, Fig. 7, Fig. 9, what the present embodiment used uses multiple cameras 2 being arranged in array, each
Camera 2 is respectively connected to reading device 3, the depth of field and the identical setting of field range 21 of each camera 2, all cameras
2 optical axis is parallel to each other and identical as the angle of reading code wall 1；It ensure that in the lesser situation of single 2 field range of camera 21
Under, by way of camera array, it is combined into a sufficiently large whole field range, under this design, as long as there is one
Camera 2 read complete code to be identified, it will be able to complete the identification mission of entire reading code.The advantage of the design also exists
In, the design scheme of this kind of array camera 2 in terms of the requirement to reading device 3 with the basic indifference of existing conventional design
It is different, although because this embodiment scheme is using the design of array camera 2, be not related to merge the image of acquisition or
Therefore the place that serial time-division queue is carried out to the image of each camera 2 acquisition can be directly used in the processing such as person's splicing
Reason, identify and extract respectively in one cycle the image that each camera 2 uploads, such identification and processing work compared to
The reading device 3 of conventional code reader is without essential distinction, without adding additional algoritic module.
By the above basic setting, the present invention program can complete the design requirement of remote reading code substantially, however,
In order to fully ensure that the final realization effect of the device, the factor considered there are also important needs, the i.e. density of camera 2 with
Sum.
As shown in Fig. 2, when the density of camera 2 is lower, it is possible that the field range of all cameras 2 is all insufficient
The case where region to be identified is completely covered, is to can not effectively identify；Although however theoretically 2 density of camera is bigger, camera shooting
" blind area " of the field range overlay area of head array is just smaller, however the density increases with being obviously unable to no maximum, no matter from
Cost, or for the burden of reading device 3 be all unacceptable.The present embodiment is rationally controlled using following standard
The density of camera 2, it is desirable that it meets:
The field range of all cameras 2 does not have gap in the inside for the figure that the perspective plane of depth of field near point is constituted.
The left margin and right margin of the total total field range for then determining camera array of camera 2 and top
The volume on boundary and the constituted region of lower boundary, quantity is more, then the range that can be covered is bigger.
Set-up mode in this way at least guarantees in depth of field section (definition of the depth of field can be found in Fig. 5), camera battle array
The field range of column can accomplish comprehensively to cover, to guarantee the blind spot for not having reading code to identify in the region for capableing of blur-free imaging.
It is possible thereby to which the identification region of reading code effect can effectively be generated by delimiting the present embodiment code-reading apparatus:
The direction of 1 face of reading code wall is arranged in identification region；The front border of identification region is covered by the depth of field near point of camera 2
Face 22, back boundary cover face 23 by the depth of field far point of camera 2.
The left margin and right margin of identification region and coboundary and lower boundary are by the camera 2 positioned at array edges
Field range 21 determines.
By Fig. 7 and its by Fig. 8 of 3D stick picture disposing may be better understood this point, the front border of identification region and
Back boundary can be identified as the covered face 22 of depth of field near point and the covered face 23 of depth of field far point；Its left margin and right margin are worked as
It so can not also exceed the limit of field range, wherein the covered face 22 of depth of field near point and the covered face of depth of field far point 23 are in specification
Understand for convenience in attached drawing and only approximately described with a plane, is not actually a plane.
As shown in Figure 1, Figure 2, shown in Fig. 6-Fig. 9, as a preferred embodiment of the present embodiment, the camera 2 used has 9
It is a, it arranges in the matrix of 3*3；The optical axis of all cameras 2 is vertical with reading code wall 1；The depth of field of camera 2 is 300mm-
1200mm, identification region is i.e. in the covered face 22 of depth of field near point as shown in Figure 7 and the covered face 23 of depth of field far point and upper and lower
Within the region of the similar trapezoidal shape surrounded with two-sided array field range boundary, as long as within this range will be to be identified
Code face reading code wall 1, can be completed reading code.In specific application scenarios, such as the charge in freeway toll station or parking lot
In the application scenarios stood, as long as the driver's cabin of vehicle is located in identification region, driver can be without mobile
It is readily accomplished the operation of reading code payment.
For the setting method aspect of the present embodiment device, both can first be completed as described in above for the explanation of device
The setting of reading code wall 1 and its corresponding reading code identification device and then according to the depth of field and field range of camera array or even
The direction of reading code wall 1 delimit suitable identification region, this kind of setting method is advantageous in that can produce system in batches with standardizing
It makes, it is low in cost.
Another set-up mode also provided below, this kind of set-up mode is relative to former set-up mode, for single
Using effect is more preferable for concrete application scene, can satisfy the demand of customization, and disadvantage is higher cost, and thinking is arranged
Be characterized in particular in the following steps are included:
Step S1: identification region delimited according to the application scenarios of barcode scanning identification；
Step S2: the depth of field needed is determined according to the width between the front border and back boundary of identification region, and is joined according to the depth of field
Number apolegamy camera 2；
Step S3: according to the Free Region range of the application scenarios of barcode scanning identification, in the front setting reading code wall 1 of identification region；
Step S4: the inside of the figure constituted according to the field range of all cameras 2 on the perspective plane of depth of field near point does not have
Gap, and positioned at array edges camera 2 field range 21 be greater than identification region left margin and right margin, coboundary
Requirement with lower boundary determines boundary, quantity and the density of the multiple cameras 2 for the array arrangement being arranged on reading code wall 1.
The setting method is actually subjected to be intended to, and identification region is first rationally delimited, further according to the specific range of identification region
The specific set-up mode of reading code wall 1 and its corresponding reading code identification device is determined in turn.
It, can in step sl, by the application scenarios that are identified to barcode scanning in order to guarantee the reasonable determination of identification region
The appearance position of two dimensional code carries out big data sampling, according to probability distribution range or according to whole samples after rejecting abnormalities sample
Range delimit identification region.Such setting can more closing to reality application scenarios, thoroughly solve remote reading code can
The problem of row and ease for use.
As shown in Figure 10, in the 2nd embodiment of the invention, the difference with the 1st embodiment is: all camera shootings
Head is distributed on a curved surface, under this kind of set-up mode, can be more advantageous to the matching for realizing the depth of field of each camera, have
Conducive to effective reading code region is amplified, to realize better effect.
This patent is not limited to above-mentioned preferred forms, anyone can obtain other each under the enlightenment of this patent
The reading code wall and its setting method based on array camera of kind form, all equalizations done according to scope of the present invention patent
Variation and modification, should all belong to the covering scope of this patent.
Claims (10)
1. a kind of reading code wall based on array camera characterized by comprising the two or more being arranged on reading code wall is in
The camera of array arrangement, each camera are respectively connected to reading device；The depth of field and visual field of each camera
Range is identical.
2. according to claim 1 based on the reading code wall of array camera, it is characterised in that: all camera distributions
On a curved surface.
3. according to claim 1 based on the reading code wall of array camera, it is characterised in that: all camera distributions
In one plane.
4. based on the reading code wall of array camera according to Claims 2 or 3, it is characterised in that: all cameras
The inside of figure that is constituted on the perspective plane of depth of field near point of field range there is no gap.
5. -3 any reading code wall based on array camera according to claim 1, it is characterised in that: all described
The optical axis of camera is vertical with reading code wall.
6. according to claim 1 based on the reading code wall of array camera, it is characterised in that: the depth of field of the camera is
300mm~1200mm。
7. according to claim 1 based on the reading code wall of array camera, it is characterised in that: the front of the reading code wall is set
It is equipped with identification region；The face that the front border of the identification region is made of the depth of field near point of all cameras, back boundary are institute
The face for thering is the depth of field far point of camera to be constituted；The left margin and right margin of the identification region and coboundary and lower boundary
Field range by being located at the camera of array edges determines.
8. according to claim 1 based on the reading code wall of array camera, it is characterised in that: be provided on the reading code wall
Connect the supplementary lighting sources of photosensitive sensor.
9. a kind of setting method of the reading code wall according to claim 1 based on array camera, which is characterized in that packet
Include following steps:
Step S1: identification region delimited according to the application scenarios of barcode scanning identification；
Step S2: the depth of field needed is determined according to the width between the front border and back boundary of identification region, and is joined according to the depth of field
Number apolegamy camera；
Step S3: according to the Free Region range of the application scenarios of barcode scanning identification, in the front setting reading code wall of identification region；
Step S4: the cone that is spatially constituted according to the field range of all cameras where depth of field near point with light
The inside for the figure that the projection of the vertical plane of axis is constituted does not have gap, and the visual field model of the camera positioned at array edges
The requirement for enclosing left margin and right margin, coboundary and lower boundary greater than the identification region determines the array being arranged on reading code wall
Boundary, quantity and the density of multiple cameras of arrangement.
10. the setting method of the reading code wall according to claim 9 based on array camera, which is characterized in that in step
In rapid S1, big data sampling is carried out by the appearance position of two dimensional code in the application scenarios that identify to barcode scanning, according to probability distribution
Range delimit identification region according to whole ranges of the sample after rejecting abnormalities sample.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811519180.9A CN109376566A (en) | 2018-12-12 | 2018-12-12 | Reading code wall and its setting method based on array camera |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811519180.9A CN109376566A (en) | 2018-12-12 | 2018-12-12 | Reading code wall and its setting method based on array camera |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013019A (en) * | 2010-12-03 | 2011-04-13 | 深圳市乐州光电技术有限公司 | Information image recognition system and method |
| CN103945210A (en) * | 2014-05-09 | 2014-07-23 | 长江水利委员会长江科学院 | Multi-camera photographing method for realizing shallow depth of field effect |
| CN106657906A (en) * | 2016-12-13 | 2017-05-10 | 国家电网公司 | Information equipment monitoring system with function of self-adaptive scenario virtual reality |
| CN106845301A (en) * | 2016-12-30 | 2017-06-13 | 北京农业信息技术研究中心 | A kind of binocular bar code reading facility suitable for arc container |
| CN209265446U (en) * | 2018-12-12 | 2019-08-16 | 福州金典工业产品设计有限公司 | Reading code wall based on array camera |
-
2018
- 2018-12-12 CN CN201811519180.9A patent/CN109376566A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013019A (en) * | 2010-12-03 | 2011-04-13 | 深圳市乐州光电技术有限公司 | Information image recognition system and method |
| CN103945210A (en) * | 2014-05-09 | 2014-07-23 | 长江水利委员会长江科学院 | Multi-camera photographing method for realizing shallow depth of field effect |
| CN106657906A (en) * | 2016-12-13 | 2017-05-10 | 国家电网公司 | Information equipment monitoring system with function of self-adaptive scenario virtual reality |
| CN106845301A (en) * | 2016-12-30 | 2017-06-13 | 北京农业信息技术研究中心 | A kind of binocular bar code reading facility suitable for arc container |
| CN209265446U (en) * | 2018-12-12 | 2019-08-16 | 福州金典工业产品设计有限公司 | Reading code wall based on array camera |
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