CN106056028A - Rapid scanning and waybill recording method and device thereof - Google Patents
Rapid scanning and waybill recording method and device thereof Download PDFInfo
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- CN106056028A CN106056028A CN201610490048.4A CN201610490048A CN106056028A CN 106056028 A CN106056028 A CN 106056028A CN 201610490048 A CN201610490048 A CN 201610490048A CN 106056028 A CN106056028 A CN 106056028A
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- 238000012545 processing Methods 0.000 claims description 19
- 230000001143 conditioned effect Effects 0.000 claims description 17
- 238000000605 extraction Methods 0.000 claims description 13
- 238000011156 evaluation Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 12
- 239000000284 extract Substances 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
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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
- G06K7/1452—Methods for optical code recognition including a method step for retrieval of the optical code detecting bar code edges
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
- G06V10/12—Details of acquisition arrangements; Constructional details thereof
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Abstract
The invention discloses a rapid scanning and waybill recording method. The method includes S1 extracting a waybill identification, including identifying the identification code being a QR code or a bar code on the waybill; S2 determining the four vertex coordinates of the identification code and estimating the length and width of the identification code through the four vertex coordinates; S3 extracting the basic information of the waybill to be scanned from a database according to the identification extracted from S1; S4 estimating the estimated size of the waybill to be scanned according to the length and width of the identification code estimated in S2 and the identification code and waybill length and width proportion extracted from S3; and S5 taking the original size extracted from S3 as the size of a shooting frame, and performing scanning when the estimated size in S4 completely falls into the shooting frame. If the estimated size doesn't completely fall into the shooting frame, the scanning is not carried out, and the user is prompted to perform the operation again until the estimated size completely falls into the shooting frame. The invention further discloses a scanning and waybill recording device based on the rapid scanning and waybill recording method.
Description
Technical field
The application relates to technical field of information processing, particularly to the method and device that a kind of quick scanning record is single.
Background technology
At present carrying out during express delivery face singly signs for, generally requiring to record and signed for the single odd numbers in face and shooting
The lower picture single by signing for face.But in concrete application scenarios, record and signed for the single odd numbers in face and shooting by the face of signing for
Single picture generally requires and is divided into multiple step to complete, and probably due to artificial factor causes record or the letter of shooting
Ceasing inaccurate or invalid, the process causing information gathering is the most loaded down with trivial details and wrong more, this not only adds courier's
Burden, also results in the consequence such as information delay or information omission simultaneously.
Although presently, there are some can the most quickly scan the method that record is single, but its discrimination being the highest, scanning
Speed is slow, causes service efficiency low, in a disguised form adds the burden of courier.
Summary of the invention
Because the drawbacks described above of prior art, the technical problem to be solved is to provide one and quickly scans record
Single method, express delivery list is capable of quickly identifying, scanning by it.
For achieving the above object, the invention provides the method that a kind of quick scanning record is single, including:
S1, the single mark in extraction face, the single mark in described extraction face includes the identification code on the list of identification face, and described identification code is two
Dimension code or bar code；
S2, determine four apex coordinates of identification code；And extrapolate identification code length and width by four apex coordinates；
S3, by S1 extracts the essential information of to be scanned list from the mark extracted from data base, described is basic
Information at least includes identification code length and width and face list Aspect Ratio to be scanned, the original size of to be scanned list；
S4, extrapolated by the identification code dough-making powder list Aspect Ratio extracted in the identification code length and width and the S3 that calculate in S2 and wait to sweep
Retouch the reckoning size that face is single；
The identification code size of the express delivery list of Mei Jia express company and face list size, the identification code Aspect Ratio single with face all differs
Sample.Therefore, if identify be which company express delivery list after just can directly know the master data of this express delivery list, as the most former in face
Beginning size, identification code size, identification code and the face direct Aspect Ratio of list original size.Can be first by the express delivery list of each company
Master data arranges, and forms data base, can be directly the most just which express delivery public affairs by identification code identification
The express delivery list of department, then by identifying that express company recalls the said firm or this express delivery list essential information.
Even if the express delivery that the coordinate that face list size, identification code size and the identification code of You Duo company are on face is single is the same
Single, nor affect on calculating, carry out confirming, distinguishing eventually through the mark extracted.
S5, using the original size of the extraction in S3 as the size of shooting frame, when the reckoning size in S4 falls completely within bat
Take the photograph in frame and be just scanned；It is not scanned as calculated that size does not fall completely within shooting frame, and reminds user again to grasp
Making, calculating that size entirely falls in shooting frame until meeting.
As a further improvement on the present invention, the mark of to be scanned list of described extraction specifically includes:
Extract the numeral numbering on to be scanned list, and described numeral numbering is defined as the mark of described to be scanned list；Or
Person's bar code to be scanned list or Quick Response Code obtain the mark of described to be scanned list.
As a further improvement on the present invention, also include, identify the definition of the picture that described to be scanned single pair of answer, and
Process according to the picture that described to be scanned single pair of is answered by the result identified；
The picture that described to be scanned single pair of after processing is answered is associated with the mark of described to be scanned list.
As a further improvement on the present invention, the definition of the picture that described to be scanned the single pair of of described identification is answered, and root
According to the result identified, the picture that described to be scanned single pair of is answered is carried out process to specifically include:
The picture utilizing sharpness evaluation function to answer described to be scanned single pair of is identified, and determines described to be scanned single pair of
The definition of the picture answered；
When the described definition determined meets pre-conditioned, the picture that described to be scanned single pair of is answered is converted to binary map；
When the described definition determined is unsatisfactory for pre-conditioned, the picture that described to be scanned single pair of is answered is converted to gray scale
Figure.
As a further improvement on the present invention, described sharpness evaluation function includes image histogram function, energy variance
At least one in function, entropy function or frequency spectrum function.
As a further improvement on the present invention, the picture that described to be scanned single pair of after processing is answered is swept with described waiting
After the single mark in face of retouching is associated, described method also includes:
Picture corresponding for the mark of described to be scanned list is sent to external equipment by wireless network.Described external equipment
Can be printer or server etc..
The single device of scanning record of a kind of method single based on above-mentioned quick scanning record, it is characterised in that including:
Marker extraction unit, is used for extracting the mark on to be scanned list；
Data base, for depositing the essential information of each company express delivery list, described essential information at least include identification code length and width and
Face list Aspect Ratio, face list original size；Described data base can be stored directly in the storage of the described single device of scanning record
In device, it is also possible to by network by incoming from external device for the face forms data needed for the described single device of scanning record；
Face list size projected unit, calculates, by identification code size, the size that face is single, to determine that scanned face is single the completeest
Entirely fall in the list original size of face, prevent face single sweep imperfect.
Device further single as above-mentioned scanning record is improved, and also includes picture processing unit, treats described in identifying
The definition of the picture that scanning plane single pair of is answered, and according to the result picture that described to be scanned single pair of is answered identified at
Reason；
Associative cell, the picture answered for described to be scanned single pair of after processing is carried out with the mark of described to be scanned list
Association.
Device further single as above-mentioned scanning record is improved, and described picture processing unit specifically includes:
Definition determines module, and the picture being used for utilizing sharpness evaluation function to answer described to be scanned single pair of is identified,
Determine the definition of the picture that described to be scanned single pair of answer；
First modular converter, is used for when the described definition determined meets pre-conditioned, described to be scanned single pair of is answered
Picture is converted to binary map；
Second modular converter, is used for when the described definition determined is unsatisfactory for pre-conditioned, should by described to be scanned single pair of
Picture be converted to gray-scale map.
Device further single as above-mentioned scanning record is improved, and described device also includes:
Wireless transmission unit, is connected with external equipment for described scanning being recorded single device by wireless network and carries out data
Exchange, be used for by as described in picture corresponding to the mark of to be scanned list sent to printing device or service by wireless network
Device；Section forms data etc. from server.
The invention has the beneficial effects as follows: a kind of method and device scanning record list that the present invention provides, treating scanning plane
While singly carrying out barcode scanning, it is possible to tended to, such that it is able to obtain quickly and accurately by identification code conversion single effective scanning of appearing
Take the mark of to be scanned list and effective picture that this face single pair of is answered.And the embodiment of the present application can also clear according to picture
Clear degree processes accordingly, it is ensured that the content of picture can correctly be understood, and improves the precision of information gathering.
Accompanying drawing explanation
The method flow diagram of a kind of quick scanning record list that Fig. 1 provides for the embodiment of the present application.
A kind of single apparatus function module map of scanning record that Fig. 2 provides for the embodiment of the present application.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings:
As it is shown in figure 1, the method for described a kind of quick scanning record list may include that
S1, the single mark in face of extracting, and identify the identification code on the list of face, described identification code is Quick Response Code or bar code；
Described extraction face list mark, can include the bar code in the numeral numbering on this face list, or this face list or two dimension
Code.In the embodiment of the present application, image identification system can be passed through, the numeral numbering on this face list is identified and extracts,
Such that it is able to the numeral extracted to be numbered the unique mark single as this face.Certainly, the embodiment of the present application can be with on the list of opposite
Bar code or Quick Response Code be decoded, obtain this bar code or digital coding corresponding to Quick Response Code, and this numeral compiled
Code is as unique mark of described to be scanned list.
Specifically, as a example by bar code, described bar code is formed by the different secret note of width and informal voucher often, this Shen
Please embodiment can be by optoelectronic detecting device sensing secret note or the signal of telecommunication corresponding to informal voucher.Described secret note is corresponding with informal voucher
Signal duration is the most different, thus can generate the pulse digit signal of telecommunication of correspondence after optoelectronic detecting device senses,
By these pulse digit signals of telecommunication are decoded just can obtaining the digital coding that this bar code is corresponding, it is hereby achieved that
Unique mark of this to be scanned list.
Photographic head can certainly be used to directly read identification code, the barcode scanning software phase of its read method and current main flow
With, as wechat, Tencent QQ scanning away from similar.
S2: determine four apex coordinates of identification code；And extrapolate identification code length and width by four apex coordinates；
First the coordinate of four points of identification code is set to respectively: (x0, y0), (x1, y1), (x2, y2), (x3, y3), then by four
Individual coordinate calculates identification code length and width.
S3, by S1 extracts the essential information of to be scanned list from the mark extracted from data base, described
Essential information at least includes identification code length and width and face list Aspect Ratio to be scanned, the original size of to be scanned list；
S4, extrapolated by the identification code dough-making powder list Aspect Ratio extracted in the identification code length and width and the S3 that calculate in S2 and wait to sweep
Retouch the reckoning size that face is single；
Such as: assume that on to be scanned list be one-dimension code, and four coordinates of identification one-dimension code are (x0, y0), (x1, y1),
(x2, y2), (x3, y3)；
Can calculate by the following method one-dimension code length w and height h:
w=sqrt[(x0-x1)*(x0-x1)+(y0-y1)*(y0-y1)]；
h=sqrt[(x1-x2)*(x1-x2)+(y1-y2)*(y1-y2)]；
And the Aspect Ratio relation of the length and width of every kind of face list and one-dimension code is fixing, it is assumed that
Single length/one-dimensional the code length in rw=face；
Rh=face list width/one-dimension code is high；
The most just can calculate single length and width of appearing:
Reckoning length=w*rw that face is single；
Reckoning width=h*rh that face is single；
Above-mentioned reckoning length and reckoning width are exactly that face is single calculates size.
S5, using the original size of the extraction in S3 as the size of shooting frame, when the reckoning size in S4 falls completely within bat
Take the photograph in frame and be just scanned；It is not scanned as calculated that size does not fall completely within shooting frame, and reminds user again to grasp
Making, calculating that size entirely falls in shooting frame until meeting.
S6: identify the definition of the picture that described to be scanned single pair of answer, and according to the result identified to described to be scanned
The picture that face single pair of is answered processes.
In step S5, the picture of shooting is often colour picture, it is contemplated that the storage of picture or later stage process, as
Fruit can take considerable resource if using colour picture.Therefore, in the embodiment of the present application, can be to described to be scanned
The definition of the picture that single pair of is answered is identified, and according to the result picture that described to be scanned single pair of is answered identified at
Reason.The purpose processed is the resource in the case of guaranteeing correctly to understand image content, shared by compressed picture.
Specifically, the application one preferred embodiment can utilize sharpness evaluation function that described to be scanned single pair of is answered
Picture be identified, determine the definition of the picture that described to be scanned single pair of answer.Described sharpness evaluation function such as may be used
To include at least one in image histogram function, energy variance function, entropy function or frequency spectrum function.Above-mentioned various clearly
Clear degree evaluation function is definition commonly used in the art and processes means, the most just repeats no more.
In the embodiment of the present application, it is also possible to centre-to-centre spacing based on picture determines the definition of described picture.Specifically,
The embodiment of the present application can utilize following formula to weigh the definition of described picture:
SHARP=k1ACM+k2HPACM
Wherein, SHARP representative picture definition evaluation index, k1And k2Being coefficient, both sum is 1, ACM representative graph
The absolute center of sheet away from, the high-pass filtering absolute center of HPACM representative picture away from.
By the absolute center of picture away from and the high-pass filtering absolute center of picture away from combining constraint so that this figure
Sheet definition evaluation index had both had advantage of overall importance, and near focal plane, picture has again enough quantified precisions simultaneously,
Can preferably reflect the definition of picture.
In the embodiment of the present application, when after the definition determining the picture that described to be scanned single pair of is answered, just can sentence
Whether the disconnected definition determined meets pre-conditioned.This is pre-conditioned can be such as default articulation index threshold value.When really
When fixed described definition meets pre-conditioned, the picture that described to be scanned single pair of is answered can be converted to binary map.Now
The definition meeting pre-conditioned then representative picture is preferable, then just colored picture can be converted to binary map.Binary map
Referring to that each pixel in picture only has black or white both colors, its gray value does not has intermediate form.Due to picture
Definition meets pre-conditioned, then equally ensure preferable definition, energy after colored picture is converted to binary map
Enough correct contents understood in binary map.The space that binary map takies is few, it is possible to offer convenience for follow-up storage and process.
When the described definition determined is unsatisfactory for pre-conditioned, then the picture that described to be scanned single pair of is answered can be turned
It is changed to gray-scale map.When the definition of picture is bad, if being converted into binary map equally, then due to the letter carried in binary map
Ceasing less, thus be likely to become more to obscure by fuzzy picture, tailing off although taking up room, but can be to correctly understanding figure
The content of sheet brings puzzlement.Therefore, in the embodiment of the present application, definition can be unsatisfactory for pre-conditioned picture to be converted to
Gray-scale map.Possessing the progression of gray scale in gray-scale map, the pixel in gray-scale map the most no longer only has black or can select in vain, but can
To carry more abundant information such that it is able to after ensureing that the relatively low picture of definition is converted to gray-scale map, account for suitably reducing
While space, it is possible to ensure to understand the correctness of image content.
So, by above-mentioned processing mode, the picture of shooting just can correspondingly be processed by the embodiment of the present application,
Taking up room of picture can not only be reduced, can correctly understand the content of picture simultaneously.
S7: the picture that described to be scanned single pair of after processing is answered is associated with the mark of described to be scanned list.
The embodiment of the present application, after having processed the picture that described to be scanned single pair of is answered, is treated described in after just can processing
The picture that scanning plane single pair of is answered is associated with the mark of described to be scanned list, thus the mark by be scanned list is permissible
Directly inquire picture associated there.Specifically, in the embodiment of the present application, various ways can be used to store described
Mark and the incidence relation of described picture.Such as described mark and described picture can be stored according to the form of list,
Can there are two column data in list, first row data may correspond to the mark of described to be scanned list, and secondary series data are then
May correspond to the picture after processing, there is the mark of incidence relation and picture may be located at same a line of list.So, pass through
The form of key-value, just can be using mark as key, value corresponding with this key in quick search to list, namely
Picture process after corresponding with this mark.
In the embodiment of the present application, the picture answered of described to be scanned single pair of after processing and described to be scanned list
Mark be associated after, picture corresponding for the mark of described to be scanned list can be sent to printing by wireless network
Equipment prints.Specifically, during described wireless network can include WiFi network, blueteeth network or other mobile network
At least one, by setting up wireless connections with printing device, such that it is able to choose the mark of to be scanned list, thus by this mark
Know corresponding picture to be printed to printing device by wireless network transmission.Furthermore it is also possible to by corresponding for the mark chosen
Picture sends and carries out storing or further processing to remote server.
The embodiment of the present application also provides for a kind of single device of scanning record.A kind of scanning record that Fig. 2 provides for the embodiment of the present application
Single apparatus function module map.As in figure 2 it is shown, described device may include that
Marker extraction unit 100, is used for extracting the mark of to be scanned list；
Data base 200, and for depositing the essential information of each company express delivery list, described essential information at least includes identification code length and width
Dough-making powder list Aspect Ratio, face list original size；Picture processing unit 300, is used for identifying the picture that described to be scanned single pair of is answered
Definition, and process according to the result picture that described to be scanned single pair of is answered identified；
Face list size projected unit 300, calculates, by identification code size, the size that face is single, whether to determine scanned face list
Fall completely within the list original size of face, prevent face single sweep imperfect.
In another preferred embodiment of the application, described picture processing unit 400 specifically includes:
Definition determines module, and the picture being used for utilizing sharpness evaluation function to answer described to be scanned single pair of is identified,
Determine the definition of the picture that described to be scanned single pair of answer；
First modular converter, is used for when the described definition determined meets pre-conditioned, described to be scanned single pair of is answered
Picture is converted to binary map；
Second modular converter, is used for when the described definition determined is unsatisfactory for pre-conditioned, should by described to be scanned single pair of
Picture be converted to gray-scale map.
In another preferred embodiment of the application, described device can also include:
Associative cell 500, is used for picture and the mark of described to be scanned list that described to be scanned single pair of after processing is answered
It is associated.
Wireless transmission unit 600, is used for being sent picture corresponding for the mark of described to be scanned list by wireless network
To external equipment.
The preferred embodiment of the present invention described in detail above.Should be appreciated that those of ordinary skill in the art without
Need creative work just can make many modifications and variations according to the design of the present invention.Therefore, all technology in the art
Personnel are available by logical analysis, reasoning, or a limited experiment the most on the basis of existing technology
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. the method that a quick scanning record is single, it is characterised in that including:
S1, the single mark in extraction face, the single mark in described extraction face includes the identification code on the list of identification face, and described identification code is two
Dimension code or bar code；
S2, determine four apex coordinates of identification code；And extrapolate identification code length and width by four apex coordinates；
S3, by S1 extracts the essential information of to be scanned list from the mark extracted from data base, described is basic
Information at least includes identification code length and width and face list Aspect Ratio to be scanned, the original size of to be scanned list；
S4, extrapolated by the identification code dough-making powder list Aspect Ratio extracted in the identification code length and width and the S3 that calculate in S2 and wait to sweep
Retouch the reckoning size that face is single；
S5, using the original size of the extraction in S3 as the size of shooting frame, when the reckoning size in S4 falls completely within shooting frame
In be just scanned；It is not scanned as calculated that size does not fall completely within shooting frame, and reminds user again to operate, directly
Entirely fall in shooting frame to satisfied reckoning size.
The method that a kind of quick scanning the most as claimed in claim 1 record is single, it is characterised in that to be scanned list of described extraction
Mark specifically includes:
Extract the numeral numbering on to be scanned list, and described numeral numbering is defined as the mark of described to be scanned list；Or
Person's bar code to be scanned list or Quick Response Code obtain the mark of described to be scanned list.
The method that a kind of quick scanning the most as claimed in claim 1 or 2 record is single, it is characterised in that also include, treat described in identification
The definition of the picture that scanning plane single pair of is answered, and according to the result picture that described to be scanned single pair of is answered identified at
Reason, and the mark of the picture answered of described to be scanned single pair of after processing and described to be scanned list is associated.
The method that a kind of quick scanning the most as claimed in claim 3 record is single, it is characterised in that to be scanned single pair of of described identification
The definition of the picture answered, and the picture that described to be scanned single pair of is answered is carried out process specifically include according to the result identified:
The picture utilizing sharpness evaluation function to answer described to be scanned single pair of is identified, and determines described to be scanned single pair of
The definition of the picture answered；
When the described definition determined meets pre-conditioned, the picture that described to be scanned single pair of is answered is converted to binary map；
When the described definition determined is unsatisfactory for pre-conditioned, the picture that described to be scanned single pair of is answered is converted to gray scale
Figure.
The method that a kind of quick scanning the most as claimed in claim 4 record is single, it is characterised in that described sharpness evaluation function bag
Include at least one in image histogram function, energy variance function, entropy function or frequency spectrum function.
The method that a kind of quick scanning the most as claimed in claim 3 record is single, it is characterised in that wait to sweep described in after processing
After the mark of the picture that the face single pair of of retouching is answered and described to be scanned list is associated, described method also includes: described waiting swept
The picture of the mark correspondence that face of retouching is single is sent to external equipment by wireless network.
7. the single device of scanning record, it is characterised in that including:
Image acquisition unit, is used for obtaining to be scanned list；
Marker extraction unit, is used for extracting the mark on to be scanned list；
Data base, for depositing the essential information of each company express delivery list, described essential information at least include identification code length and width and
Face list Aspect Ratio, face list original size；
Face list size projected unit, calculates, by identification code size, the size that face is single, to determine that scanned face is single the completeest
Entirely fall in the list original size of face, prevent face single sweep imperfect.
8. a kind of single device of scanning record as claimed in claim 7, it is characterised in that also include:
Picture processing unit, is used for the definition of the picture identifying that described to be scanned single pair of answer, and according to the result pair identified
The picture that described to be scanned single pair of is answered processes；
Associative cell, the picture answered for described to be scanned single pair of after processing is carried out with the mark of described to be scanned list
Association.
9. a kind of single device of scanning record as claimed in claim 8, it is characterised in that described picture processing unit specifically includes:
Definition determines module, and the picture being used for utilizing sharpness evaluation function to answer described to be scanned single pair of is identified,
Determine the definition of the picture that described to be scanned single pair of answer；
First modular converter, is used for when the described definition determined meets pre-conditioned, described to be scanned single pair of is answered
Picture is converted to binary map；
Second modular converter, is used for when the described definition determined is unsatisfactory for pre-conditioned, should by described to be scanned single pair of
Picture be converted to gray-scale map.
10. a kind of single device of scanning record as claimed in claim 7, it is characterised in that described device also includes: be wirelessly transferred list
Unit, is connected with external equipment for described scanning being recorded single device by wireless network and carries out data exchange.
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| CN201610490048.4A CN106056028B (en) | 2016-06-29 | 2016-06-29 | A kind of method and its device that quick scanning record is single |
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| CN201610490048.4A CN106056028B (en) | 2016-06-29 | 2016-06-29 | A kind of method and its device that quick scanning record is single |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108932692A (en) * | 2017-05-26 | 2018-12-04 | 杭州海康机器人技术有限公司 | The acquisition methods and device of face list information |
| CN109614834A (en) * | 2018-12-03 | 2019-04-12 | 深圳市迅秒科技有限公司 | A kind of method, equipment and the system of automatic identification express delivery information |
| CN109977720A (en) * | 2019-03-28 | 2019-07-05 | 尤尼泰克(嘉兴)信息技术有限公司 | A kind of method and device of fast resolving image in 2 D code |
| CN112417914A (en) * | 2020-11-27 | 2021-02-26 | 西安诺瓦星云科技股份有限公司 | Data scanning method and device and electronic equipment |
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| CN114859603B (en) * | 2022-05-31 | 2024-05-24 | 福州恒美光电材料有限公司 | LCD display screen and definition detection method thereof |
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