CN106778783A - Character recognition device based on template matching - Google Patents
Character recognition device based on template matching Download PDFInfo
- Publication number
- CN106778783A CN106778783A CN201611160432.4A CN201611160432A CN106778783A CN 106778783 A CN106778783 A CN 106778783A CN 201611160432 A CN201611160432 A CN 201611160432A CN 106778783 A CN106778783 A CN 106778783A
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- CN
- China
- Prior art keywords
- image
- recognition device
- character
- character recognition
- light source
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- G06V10/40—Extraction of image or video features
- G06V10/56—Extraction of image or video features relating to colour
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Character Input (AREA)
- Image Analysis (AREA)
Abstract
A character recognition device based on template matching comprises a standard character image storage card, a character image processing card, an image comparison processor and a three-color LED light source, wherein a module is connected to the character recognition device through an information transmission interface. Thereby this patent can realize discerning the characters and judge bad characters, and the identification step utilizes the three-colour light source to form characters colour difference image, and the rethread compares with standard characters image to judge.
Description
Technical field
This patent is related to a kind of character identification system, is that one kind passes through image matching identification word, the word of automatic detection
Identifying system.
Background technology
It is very big for the Text region demand for minimizing in the market, for example：Existing optical checking machine, few texts
Word recognizes this function.Without character identification function if the optical checking machine of Omron.If relying only on artificial visual confirmation, due to
The character silk printing of many integrated circuits is much like, or even only 1 difference of English alphabet, so the method for visually confirming has
A small amount of bad outflow, causes serious quality hidden danger.
Patent content
This patent cannot correspond to the defect that the trickle Text region of integrated circuit causes bad outflow at present for solution, and
A kind of character recognition device based on template matches of design, realization is identified to word so as to judge bad Text region
System, its design principle is to form word color difference image using three-color light source, then is compared by with grapholect image, is reached
To the purpose for judging.
The technical scheme that this patent solves the use of its technical problem is individual module design, and module is deposited including standard texts and pictures picture
Card storage, character image treatment card, image comparison processor, three-color LED light source, the module are connected to phase by information transmission interface
Answer device.
The grapholect image that described grapholect image storage card storage has been formed.
The described character image treatment existing camera in Cali, after intake image, treatment Cali forms word with aberration
Image.
Described image comparison processor：It is picture processing chip, by the character image after treatment and grapholect image
Compare judgement.
The described light source of three color 120 provides imaging three-color light source.
Described information transmission interface is responsible for signal and image information transmission.
Brief description of the drawings
This patent is further described with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1：This patent structural principle block diagram.
In figure, 1, grapholect image storage card；2nd, character image treatment card；3rd, image comparison processor；, three colors 120
Light source；5th, information transmission interface；6、.
Specific embodiment
This patent is illustrated with reference to embodiment.
This patent is under the premise of intrinsic function is not changed, to increase Text region module, and module is processed using check machine
Terminal can increase-volume interface carry out Text region information and character image transmission.Module includes grapholect image storage card 1, text
Word video processing board-card 2, image comparison processor 3, three-color LED light source 4, the module are connected to 6 by information transmission interface 5.
This patent light source provides illumination using three-color LED light source 4, and the image for being absorbed is comprising trichromatic foundation drawing
Picture.Video camera, processing terminal and drive control are all using the standard configuration of standard 6.The core of this patent is character image treatment
Card 2, character image processing mode is divided into two kinds, and one kind is for comprising three-primary-color image information, being taken out using treatment card is built-in
Color function, two kinds of colors of the low emulation of automatic shield improve the definition of absorbed character image.Second, using binaryzation
Image processing method, extract the marginal value of " 0 " or " 0 ", be used to distinguish the judgement of similar word, accurate judge phase so as to reach
Like the requirement of word, it is to avoid erroneous judgement.
Character image after being processed through pictograph video processing board-card 2, in image comparison processor 3, is carried out and standard
Grapholect image comparison in the image library of character image storage card 1, and carry out the differentiation of non-defective unit and defective products.
This patent is not limited to above-described embodiment, any equivalent concepts in the technical scope that this patent is disclosed or changes
Become, be classified as the protection domain of this patent.
Claims (1)
1. a kind of character recognition device based on template matches, it is characterised in that using individual module design, module includes standard
Character image storage card (1), the light source (4) of (3) three color of character image treatment card (2) image comparison processor 120, the module pass through
Information transmission interface (5) is exported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611160432.4A CN106778783A (en) | 2016-12-15 | 2016-12-15 | Character recognition device based on template matching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611160432.4A CN106778783A (en) | 2016-12-15 | 2016-12-15 | Character recognition device based on template matching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106778783A true CN106778783A (en) | 2017-05-31 |
Family
ID=58887627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611160432.4A Pending CN106778783A (en) | 2016-12-15 | 2016-12-15 | Character recognition device based on template matching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106778783A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202257605U (en) * | 2011-10-14 | 2012-05-30 | 大连日佳电子有限公司 | Character recognition system applied to optical inspection machine |
| CN103854020A (en) * | 2012-11-29 | 2014-06-11 | 北京千橡网景科技发展有限公司 | Character recognition method and device |
| CN105528610A (en) * | 2014-09-30 | 2016-04-27 | 阿里巴巴集团控股有限公司 | Character recognition method and device |
-
2016
- 2016-12-15 CN CN201611160432.4A patent/CN106778783A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202257605U (en) * | 2011-10-14 | 2012-05-30 | 大连日佳电子有限公司 | Character recognition system applied to optical inspection machine |
| CN103854020A (en) * | 2012-11-29 | 2014-06-11 | 北京千橡网景科技发展有限公司 | Character recognition method and device |
| CN105528610A (en) * | 2014-09-30 | 2016-04-27 | 阿里巴巴集团控股有限公司 | Character recognition method and device |
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Application publication date: 20170531 |
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| WD01 | Invention patent application deemed withdrawn after publication |