CN109977706A - Barcode scanning equipment with phase focus function - Google Patents
Barcode scanning equipment with phase focus function Download PDFInfo
- Publication number
- CN109977706A CN109977706A CN201711439684.5A CN201711439684A CN109977706A CN 109977706 A CN109977706 A CN 109977706A CN 201711439684 A CN201711439684 A CN 201711439684A CN 109977706 A CN109977706 A CN 109977706A
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- China
- Prior art keywords
- barcode scanning
- scanning equipment
- phase
- phase difference
- focus function
- Prior art date
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- 230000006698 induction Effects 0.000 claims abstract description 23
- 238000003384 imaging method Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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
-
- 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
- G06K7/10881—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 constructional details of hand-held scanners
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
- G06K7/1439—Methods for optical code recognition including a method step for retrieval of the optical code
- G06K7/1443—Methods for optical code recognition including a method step for retrieval of the optical code locating of the code in an image
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Studio Devices (AREA)
Abstract
The present invention proposes a kind of barcode scanning equipment with phase focus function, barcode scanning equipment scans target identification, there are several pixel units of several pixel units and induction targets mark of induction target identification or so phase difference or more phase difference in the imaging sensor of barcode scanning equipment, realizes phase focusing.
Description
Technical field
The present invention relates to barcode scanning equipment technical field more particularly to a kind of barcode scanning equipment with phase focus function.
Background technique
Now the overwhelming majority shopping plazas, supermarket cashier be all made of bar code barcode scanning equipment customer is bought it is various types of
The product of type carries out bar code scan, and bar code information is then sent to computer and carries out Automatic-settlement.
Bar code barcode scanning equipment is passed through above irradiation optical system to bar code symbol by the light that light source issues, reflected
Light passes through optical system imaging on the image sensor, and generates analog voltage signal, using filtering, shaping, decoder solution
It is interpreted as the digital signal that computer can directly receive, to reach the function of identification, judgement.
Summary of the invention
The purpose of the present invention is to provide a kind of barcode scanning equipment with phase focus function, improve the identification of barcode scanning equipment,
Determine the speed and accuracy of bar code symbol.
Based on considerations above, the present invention proposes a kind of barcode scanning equipment with phase focus function, comprising:
Barcode scanning equipment scans target identification；
There are several pixel units and induction targets of induction target identification or so phase difference in the imaging sensor of barcode scanning equipment
Several pixel units of phase difference up and down are identified, realize phase focusing.
Preferably, 50% or more pixel unit in described image sensor can induction targets mark phase difference.
Preferably, 50% or more pixel unit can incudes left and right in the pixel unit of induction targets mark phase difference
Phase difference.
Preferably, it in the pixel unit combination of 4N array, realizes induction left and right phase difference and incudes phase difference up and down,
Wherein N is the natural number more than or equal to 1.
Preferably, it provides voice coil motor control lens module to be axially moved, realizes focusing function.
Preferably, the target identification is bar code, two bar codes, specific establishment code.
Preferably, the barcode scanning equipment is hand-held barcode scanning gun.
Compared with prior art, the barcode scanning equipment with phase focus function of the invention has the advantages that
In the present invention, imaging sensor both may be implemented induction left and right phase difference or may be implemented to incude phase difference up and down, realize
The rapid focus of barcode scanning equipment improves the speed of the identification of barcode scanning equipment, judgement.
Detailed description of the invention
By Figure of description and then it is used to illustrate the specific reality of the certain principles of the present invention together with Figure of description
Mode is applied, other feature possessed by the present invention and advantage will be apparent or more specifically illustrated.
Fig. 1 is the arrangement schematic diagram according to the image sensor pixel cells of one embodiment of the invention.
Specific embodiment
In the following detailed description of the preferred embodiment, reference is constituted to the appended attached drawing of present invention a part.Institute
Attached attached drawing, which has been illustrated by way of example, can be realized specific embodiment.Exemplary embodiment is not intended to
Exhaustive all embodiments according to the present invention.It is appreciated that without departing from the scope of the present invention, can use other
Embodiment can also carry out the modification of structure or logic.Therefore, it is below specific descriptions and it is unrestricted, and this
The range of invention is defined by the claims appended hereto.
The present invention proposes that a kind of barcode scanning equipment with phase focus function, barcode scanning equipment scan target identification, and barcode scanning is set
Several pixel units and induction targets for having induction target identification or so phase difference in standby imaging sensor identify phase up and down
Several pixel units of potential difference realize phase focusing.
Refering to what is shown in Fig. 1, the imaging sensor of barcode scanning equipment of the invention has 4N pixel unit, the 4N pixel list
Member is arranged using RGB Bayer array mode, and wherein N is the natural number more than or equal to 1.Described image sensor uses phase-detection
Autofocus Technology (PDAF) extracts the phase information of adjacent pixel unit, the adjacent pixel in focus process by algorithm
Unit not only can be used for it is photosensitive, but also can be used for phase focusing,.Target identification and imaging sensor focal plane with scanning
The variation of position, the phase information of adjacent pixel unit can also generate variation, and designed pixel unit is extracted
Defocus can fit a curve to the phase information of focus, when detecting target identification, cracking can calculate shifting
The position of focus can be reached by moving how many distance, and then realize quickly focusing.
Shown in continuing to refer to figure 1,50% or more pixel unit in described image sensor can induction targets mark phase
Potential difference, the pixel unit expression of shadow region is covered in figure, and to can be used for induced phase poor.Preferably, in imaging sensor
70% or more pixel unit can induced phase it is poor.Specifically, there is induction target identification or so phase difference in described image sensor
Several pixel units, as in figure shadow region covering left side or right side pixel unit and induction targets mark on
Several pixel units of lower phase difference, if shadow region covers the pixel unit of the upper half or lower half in figure, so that image passes
Sensor both may be implemented induction left and right phase difference or may be implemented to incude phase difference up and down.
Further, there can be 50% or more pixel unit induction left in the pixel unit of induction targets mark phase difference
Right phase difference, i.e., 25% or more pixel unit in imaging sensor can incude left and right phase difference.Preferably, mesh can incuded
There is 70% or more pixel unit that can incude left and right phase difference in the pixel unit of mark mark phase difference.In addition, described image senses
Same pixel unit in device not only can also be used to incude left and right phase difference, but also for incuding phase difference up and down.
In one embodiment, barcode scanning equipment further includes voice coil motor, lens module, according to phase signal, voice coil motor
Control lens module is axially moved, and realizes focusing function.
In one embodiment, the target identification is bar code, two bar codes, specific establishment code.
In one embodiment, the barcode scanning equipment is hand-held barcode scanning gun.
In barcode scanning equipment with phase focus function of the invention, induction left and right phase difference both may be implemented can also be real
Now incude phase difference up and down, realize the rapid focus of barcode scanning equipment, improves the speed of the identification of barcode scanning equipment, judgement.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
How from the point of view of, the present embodiments are to be considered as illustrative and not restrictive.In addition, it will be evident that one word of " comprising " not
Exclude other elements and steps, and wording "one" be not excluded for plural number.The multiple element stated in device claim can also
To be implemented by one element.The first, the second equal words are used to indicate names, and are not indicated any particular order.
Claims (7)
1. a kind of barcode scanning equipment with phase focus function, it is characterised in that:
Barcode scanning equipment scans target identification；
There are several pixel units and induction targets of induction target identification or so phase difference in the imaging sensor of barcode scanning equipment
Several pixel units of phase difference up and down are identified, realize phase focusing.
2. the barcode scanning equipment according to claim 1 with phase focus function, which is characterized in that described image sensor
In 50% or more pixel unit can induction targets mark phase difference.
3. the barcode scanning equipment according to claim 2 with phase focus function, which is characterized in that can induction targets mark
There is 50% or more pixel unit induction left and right phase difference in the pixel unit of sensible potential difference.
4. the barcode scanning equipment according to claim 2 with phase focus function, which is characterized in that in the pixel of 4N array
In unit combination, realizes induction left and right phase difference and incude phase difference up and down, wherein N is the natural number more than or equal to 1.
5. the barcode scanning equipment according to claim 1 with phase focus function, which is characterized in that provide voice coil motor control
Lens module processed is axially moved, and realizes focusing function.
6. the barcode scanning equipment according to claim 1 with phase focus function, which is characterized in that the target identification is
Bar code, two bar codes, specific establishment code.
7. the barcode scanning equipment according to claim 1 with phase focus function, which is characterized in that the barcode scanning equipment is
Hand-held barcode scanning gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711439684.5A CN109977706A (en) | 2017-12-27 | 2017-12-27 | Barcode scanning equipment with phase focus function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711439684.5A CN109977706A (en) | 2017-12-27 | 2017-12-27 | Barcode scanning equipment with phase focus function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109977706A true CN109977706A (en) | 2019-07-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711439684.5A Pending CN109977706A (en) | 2017-12-27 | 2017-12-27 | Barcode scanning equipment with phase focus function |
Country Status (1)
| Country | Link |
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| CN (1) | CN109977706A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877046A (en) * | 2009-11-25 | 2010-11-03 | 格科微电子（上海）有限公司 | Image sensor device and method for identifying visible mark |
| CN201638240U (en) * | 2009-11-25 | 2010-11-17 | 格科微电子（上海）有限公司 | Image sensor and mobile device comprising same |
| CN106657799A (en) * | 2017-03-02 | 2017-05-10 | 苏州摩比力特电子科技有限公司 | Bar code scanning device and method based on phase detection |
| US20170180627A1 (en) * | 2015-12-16 | 2017-06-22 | SK Hynix Inc. | Auto-focus system for a digital imaging device and method |
| CN106982328A (en) * | 2017-04-28 | 2017-07-25 | 广东欧珀移动通信有限公司 | Double-core focus image sensor and its focusing control method and imaging device |
| CN107135340A (en) * | 2017-04-28 | 2017-09-05 | 广东欧珀移动通信有限公司 | Imaging sensor, focusing control method, imaging device and mobile terminal |
| CN207833522U (en) * | 2017-12-27 | 2018-09-07 | 格科微电子（上海）有限公司 | Barcode scanning equipment with phase focus function |
-
2017
- 2017-12-27 CN CN201711439684.5A patent/CN109977706A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877046A (en) * | 2009-11-25 | 2010-11-03 | 格科微电子（上海）有限公司 | Image sensor device and method for identifying visible mark |
| CN201638240U (en) * | 2009-11-25 | 2010-11-17 | 格科微电子（上海）有限公司 | Image sensor and mobile device comprising same |
| US20170180627A1 (en) * | 2015-12-16 | 2017-06-22 | SK Hynix Inc. | Auto-focus system for a digital imaging device and method |
| CN106657799A (en) * | 2017-03-02 | 2017-05-10 | 苏州摩比力特电子科技有限公司 | Bar code scanning device and method based on phase detection |
| CN106982328A (en) * | 2017-04-28 | 2017-07-25 | 广东欧珀移动通信有限公司 | Double-core focus image sensor and its focusing control method and imaging device |
| CN107135340A (en) * | 2017-04-28 | 2017-09-05 | 广东欧珀移动通信有限公司 | Imaging sensor, focusing control method, imaging device and mobile terminal |
| CN207833522U (en) * | 2017-12-27 | 2018-09-07 | 格科微电子（上海）有限公司 | Barcode scanning equipment with phase focus function |
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