CN109631763A - Irregular part detects localization method - Google Patents
Irregular part detects localization method Download PDFInfo
- Publication number
- CN109631763A CN109631763A CN201910100934.5A CN201910100934A CN109631763A CN 109631763 A CN109631763 A CN 109631763A CN 201910100934 A CN201910100934 A CN 201910100934A CN 109631763 A CN109631763 A CN 109631763A
- Authority
- CN
- China
- Prior art keywords
- localization method
- measured
- image
- algorithm
- millimeters
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The present invention relates to technical field of vision detection, refer in particular to a kind of irregular part detection localization method, include the following steps, step 1: acquiring the template image of part, establish outline algorithm for template image；Step 2: part to be measured is sent to the underface of filming apparatus by transmission device；Step 3: opening bar shaped illuminator and carry out floor light；Step 4: image is subjected to binary conversion treatment；Step 5: image being subjected to the calculating of outline algorithm, obtains location information；Step 6: location information is transmitted to external equipment, location information is also subjected to the calculating of numerical value display algorithm simultaneously, the position numerical value and angular values that can be read, while overcoming environment shadow to ring, entire workpiece also can be uniformly illuminated, to obtain the image information of high contrast, in order to software analysis, it is comprehensive to appeal equipment and combine step algorithm, while controlling manufacture use cost, it ensure that the accuracy of detection positioning.
Description
Technical field
The present invention relates to technical field of vision detection, refer in particular to a kind of irregular part detection localization method.
Background technique
The characteristics of Machine Vision Detection is the flexibility and the degree of automation for improving production.It is not suitable for manual work some
Dangerous work environment or artificial vision be difficult to the occasion met the requirements, machine in normal service vision substitutes artificial vision；Exist simultaneously
In high-volume industrial processes, manually visual inspection product quality low efficiency and precision is not high, with Machine Vision Detection side
Method can greatly improve the degree of automation of production efficiency and production.And machine vision is easily achieved information integration, is to realize
The basic technology of computer integrated manufacturing system.Vision-based detection is exactly to replace human eye with machine to measure and judge.Vision-based detection is
Refer to that, by machine vision product, image-pickup device is divided to CMOS and two kinds of CCD, will be ingested target and be converted into picture signal,
It sends dedicated image processing system to, according to the information such as pixel distribution and brightness, color, is transformed into digitized signal；Image
System carries out various operations to these signals to extract clarification of objective, and then the equipment at scene is controlled according to the result of differentiation
Movement.It is the valuable mechanism for producing, assembling or pack.It is in detection defect and prevents from faulty goods to be dispensed into disappearing
There is immeasurable value in terms of the function of the person of expense.
As above situation, vision-based detection has huge market value, most crucial in vision-based detection system not to be
Hardware device but algorithm steps, and algorithm steps can be because of testing result requirement, product shape, operating environment situation and design
The appearance of the factors such as the technical capability of personnel or group is multifarious, if core algorithm step design shortcoming, affects a whole set of view
Feel the operational efficiency and running quality of detection device, and in irregular part detection location algorithm step, it is most of in the market
The use cost of technical solution is high, while also the complex routine for being unfavorable for those skilled in the art changes parameter to algorithm steps
Equal operations setting.
Summary of the invention
That the technical problem to be solved in the present invention is to provide a kind of equipment use costs is not high, setting accuracy is accurate, algorithm
Step is simply easy to those skilled in the art's change or resets the irregular part detection localization method of associated technical parameters.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme: a kind of irregular part detects positioning side
Method includes the following steps, step 1: acquiring the template image of part, establish outline algorithm for template image；
Step 2: part to be measured is transferred to the underface of filming apparatus, at this time the vertical spacing between filming apparatus and part away from
From being 480 to 750 millimeters；
Step 3: opening the strip source lamp for being respectively arranged at transmission device two sides to part to be measured progress floor light；
Step 4: Image Acquisition being carried out to part to be measured, the part image to be measured of acquisition is then subjected to binary conversion treatment；
Step 5: the part image to be measured after the completion of binary conversion treatment being subjected to the calculating of outline algorithm, obtains location information；
Step 6: location information being transmitted to external equipment, while location information is also subjected to the calculating of numerical value display algorithm, is obtained
The position numerical value and angular values that can be read.
Preferably, the filming apparatus in the step 2 includes the industrial camera of 100 to 1,500,000 pixels and is connected to industry
6 to 10 millimeters of tight shot of camera.
Preferably, the filming apparatus in the step 2 includes the industrial camera of 1,300,000 pixels and is connected to industrial camera
8 millimeters of tight shot.
Preferably, the vertical spacing distance in the step 2 between filming apparatus and part to be measured is 540 millimeters.
Preferably, the angle between the light-emitting surface and horizontal plane of the strip source lamp in the step 3 is 40 to 80 degree.
Preferably, the angle between the light-emitting surface and horizontal plane of the strip source lamp in the step 3 is 60 degree.
Preferably, the quantity of the strip source lamp in the step 3 is two, the level between two strip source lamps
Spacing distance is 500 to 800 millimeters.
Preferably, the quantity of the strip source lamp in the step 3 is two, the level between two strip source lamps
Spacing distance is 600 millimeters.
Preferably, the external equipment in the step 6 is manipulator, manipulator receive carry out after location information positioning and
Crawl.
The beneficial effects of the present invention are: provide a kind of irregular part detection localization method, used in profile
Matching algorithm and numerical value display algorithm are the algorithm routinely used on the market, and the technical program uses the industry of 1,300,000 pixels
Camera combines 8 millimeters of tight shots, is 540 millimeters by the control of the vertical range of part and tight shot, since workpiece material is
Metal, characteristic is Gao Fanguang and workpiece surface is uneven, therefore uses the irradiation in strip source face and 60 degree of angles of horizontal plane
Mode is irradiated workpiece from side, and the horizontal interval distance of the strip source lamp of two symmetric designs is designed as 600
Millimeter also can uniformly illuminate entire workpiece while overcoming environment shadow to ring, to obtain the image letter of high contrast
Breath, it is comprehensive to appeal equipment and combine step algorithm in order to software analysis, while controlling manufacture use cost, guarantee
The accuracy of detection positioning, while step algorithm is conventional algorithm, convenient for those skilled in the art according to the actual situation to equipment
Debugging or algorithm change are carried out, service efficiency is improved and transmits it to robotic device after obtaining accurate location information,
Further analysis is handled robotic device, completes the crawl route equipment to part, and highly compatible cooperates subsequent device operation.
Detailed description of the invention
Fig. 1 is the detection contrast schematic diagram of the first situation of part to be measured in technical solution of the present invention.
Fig. 2 is the detection contrast schematic diagram of second of situation of part to be measured in technical solution of the present invention.
Fig. 3 is the detection contrast schematic diagram of the third situation of part to be measured in technical solution of the present invention.
Specific embodiment
For the ease of the understanding of those skilled in the art, below with reference to embodiment, the present invention is further illustrated, real
The content that the mode of applying refers to not is limitation of the invention.
As shown in Figure 1 to Figure 3, a kind of irregular part detects localization method, includes the following steps, step 1: acquisition part
Template image, establish outline algorithm for template image；
Step 2: part 1 to be measured is transferred to the underface of filming apparatus, it is vertical between filming apparatus and part to be measured 1 at this time
Spacing distance is 540 millimeters, and filming apparatus includes the industrial camera of 1,300,000 pixels and is connected to 8 millimeters of industrial camera and determines
Zoom lens；
Step 3: floor light being carried out to part 1 to be measured using strip source lamp, the quantity of strip source lamp is two, this two
Horizontal interval distance between strip source lamp is 600 millimeters, and the angle between the light-emitting surface and horizontal plane of strip source lamp is
60 degree；
Step 4: Image Acquisition being carried out to part 1 to be measured, 1 image of part to be measured of acquisition is then subjected to binary conversion treatment；
Step 5: 1 image of part to be measured after the completion of binary conversion treatment being subjected to the calculating of outline algorithm, obtains location information；
Step 6: location information being transmitted to external equipment, while location information is also subjected to the calculating of numerical value display algorithm, is obtained
The position numerical value and angular values that can be read, external equipment are manipulator, manipulator receive carry out after location information positioning and
Crawl.
The irregular part of the present embodiment detects localization method, used in outline algorithm and numerical value display algorithm
It is the algorithm routinely used on the market, and the technical program combines 8 millimeters of tight shots using 1,300,000 pixel industrial cameras,
It is 540 millimeters by the control of the vertical range of part and tight shot, since workpiece material is metal, characteristic is Gao Fanguang and work
Part surface irregularity, therefore the radiation modality of the 60 degree of angles in strip source face and horizontal plane is used to shine from side workpiece
It penetrates, and the horizontal interval distance of the strip source lamp of two symmetric designs is designed as 600 millimeters, environment shadow is being overcome to ring
Meanwhile entire workpiece also can be uniformly illuminated, so that the image information of high contrast is obtained, in order to which software is analyzed, in synthesis
It tells equipment and combines step algorithm, while controlling manufacture use cost, ensure that the accuracy of detection positioning, same to time step
Rapid algorithm is conventional algorithm, debugs according to the actual situation to equipment convenient for those skilled in the art or algorithm change, raising make
Robotic device is transmitted it to after obtaining accurate location information with efficiency, further analysis is handled robotic device,
The crawl route equipment to part is completed, highly compatible cooperates subsequent device operation.
In addition, being used for description purposes only if any term " first ", " second ", it is not understood to indicate or imply relatively heavy
The property wanted or the quantity for implicitly indicating technical characteristic." first " is defined as a result, " second " feature can be expressed or implicit include
One or more this feature, in the present description, " several " are meant that two or more, unless otherwise clearly having
The restriction of body.
In the present invention, except as otherwise clear stipulaties and restriction, should make if any term " assembling ", " connected ", " connection " term
Broad sense goes to understand, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It is also possible to mechanical connect
It connects；It can be directly connected, be also possible to be connected by intermediary, can be and be connected inside two elements.For ability
For the those of ordinary skill of domain, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (9)
1. irregular part detects localization method, it is characterised in that: include the following steps,
Step 1: acquiring the template image of part, establish outline algorithm for template image；
Step 2: part to be measured (1) being transferred to the underface of filming apparatus, at this time between filming apparatus and part to be measured (1)
Vertical spacing distance is 480 to 750 millimeters；
Step 3: floor light being carried out to part to be measured (1) using strip source lamp；
Step 4: Image Acquisition being carried out to part to be measured (1), then carries out part to be measured (1) image of acquisition at binaryzation
Reason；
Step 5: part to be measured (1) image after the completion of binary conversion treatment being subjected to the calculating of outline algorithm, obtains position letter
Breath；
Step 6: location information being transmitted to external equipment, while location information is also subjected to the calculating of numerical value display algorithm, is obtained
The position numerical value and angular values that can be read.
2. irregular part according to claim 1 detects localization method, it is characterised in that: the shooting in the step 2
Device includes the industrial camera of 100 to 1,500,000 pixels and 6 to 10 millimeters of tight shot for being connected to industrial camera.
3. irregular part according to claim 1 detects localization method, it is characterised in that: the shooting in the step 2
Device includes the industrial camera of 1,300,000 pixels and 8 millimeters of tight shot for being connected to industrial camera.
4. irregular part according to claim 1 detects localization method, it is characterised in that: shoot dress in the step 2
The vertical spacing distance set between part to be measured (1) is 540 millimeters.
5. irregular part according to claim 1 detects localization method, it is characterised in that: the bar shaped in the step 3
Angle between the light-emitting surface and horizontal plane of illuminator is 40 to 80 degree.
6. irregular part according to claim 1 detects localization method, it is characterised in that: the bar shaped in the step 3
Angle between the light-emitting surface and horizontal plane of illuminator is 60 degree.
7. irregular part according to claim 1 detects localization method, it is characterised in that: the bar shaped in the step 3
The quantity of illuminator is two, and the horizontal interval distance between two strip source lamps is 500 to 800 millimeters.
8. irregular part according to claim 1 detects localization method, it is characterised in that: the bar shaped in the step 3
The quantity of illuminator is two, and the horizontal interval distance between two strip source lamps is 600 millimeters.
9. irregular part according to claim 1 detects localization method, it is characterised in that: the outside in the step 6
Equipment is manipulator, and manipulator is positioned and grabbed after receiving location information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910100934.5A CN109631763A (en) | 2019-02-01 | 2019-02-01 | Irregular part detects localization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910100934.5A CN109631763A (en) | 2019-02-01 | 2019-02-01 | Irregular part detects localization method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109631763A true CN109631763A (en) | 2019-04-16 |
Family
ID=66064593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910100934.5A Pending CN109631763A (en) | 2019-02-01 | 2019-02-01 | Irregular part detects localization method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109631763A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110097540A (en) * | 2019-04-20 | 2019-08-06 | 东莞中科蓝海智能视觉科技有限公司 | The visible detection method and device of polygon workpeace |
| CN110111312A (en) * | 2019-04-20 | 2019-08-09 | 东莞中科蓝海智能视觉科技有限公司 | The MARK point visible detection method and device of transparent flexible glue paper |
| CN113251926A (en) * | 2021-06-04 | 2021-08-13 | 山东捷瑞数字科技股份有限公司 | Method and device for measuring size of irregular object |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252611A (en) * | 2011-05-09 | 2011-11-23 | 深圳市澎湃图像技术有限公司 | Geometric positioning method |
| CN105373789A (en) * | 2015-10-08 | 2016-03-02 | 中国电子科技集团公司第四十一研究所 | Cigarette invisible sprayed code integrity detection method |
| CN106092061A (en) * | 2016-05-31 | 2016-11-09 | 河海大学 | River water surface flow field calibrating method based on lens imaging model under oblique viewing angle |
-
2019
- 2019-02-01 CN CN201910100934.5A patent/CN109631763A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252611A (en) * | 2011-05-09 | 2011-11-23 | 深圳市澎湃图像技术有限公司 | Geometric positioning method |
| CN105373789A (en) * | 2015-10-08 | 2016-03-02 | 中国电子科技集团公司第四十一研究所 | Cigarette invisible sprayed code integrity detection method |
| CN106092061A (en) * | 2016-05-31 | 2016-11-09 | 河海大学 | River water surface flow field calibrating method based on lens imaging model under oblique viewing angle |
Non-Patent Citations (1)
| Title |
|---|
| 霍磊等: "基于分布式图像处理技术钢卷尺检定系统的研制", 《精密制造与自动化》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110097540A (en) * | 2019-04-20 | 2019-08-06 | 东莞中科蓝海智能视觉科技有限公司 | The visible detection method and device of polygon workpeace |
| CN110111312A (en) * | 2019-04-20 | 2019-08-09 | 东莞中科蓝海智能视觉科技有限公司 | The MARK point visible detection method and device of transparent flexible glue paper |
| CN113251926A (en) * | 2021-06-04 | 2021-08-13 | 山东捷瑞数字科技股份有限公司 | Method and device for measuring size of irregular object |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109297413B (en) | Visual measurement method for large-scale cylinder structure | |
| CN110108711A (en) | The vision detection system of annulus side wall defect | |
| CN109631763A (en) | Irregular part detects localization method | |
| CN116879308A (en) | Industrial machine vision system image processing method | |
| CN105866129A (en) | Product surface quality online detection method based on digital projection | |
| CN206981462U (en) | Stamping parts surface defect detection apparatus based on 3D vision | |
| CN110097540A (en) | The visible detection method and device of polygon workpeace | |
| CN109859192A (en) | The detection recognition method of round high reflective workpiece | |
| CN110261069B (en) | Detection method for optical lens | |
| CN109596054A (en) | The size detection recognition methods of strip workpiece | |
| CN113160162B (en) | Hole recognition method and device applied to workpiece and hole processing equipment | |
| CN206223683U (en) | A kind of tabular workpiece with hole surface defect detection apparatus | |
| CN105987917A (en) | Sapphire crystal growing defect and surface defect optical detecting method and detecting system thereof | |
| CN109596058A (en) | The size detection recognition methods of plastic workpiece | |
| CN105391998B (en) | Automatic detection method and apparatus for resolution of low-light night vision device | |
| CN109557098A (en) | Metal surface detection system based on machine vision | |
| CN110082356A (en) | The visible detection method and device of wire surface defect | |
| CN109631803A (en) | Part angle detects adjusting method | |
| CN109632814A (en) | Part defect detection method | |
| CN109596626A (en) | Bloom magnet ring workpiece visible detection method | |
| CN109596625A (en) | Workpiece, defect detection recognition method in charging tray | |
| CN210102906U (en) | Automatic identification grabbing device of miniaturized electric capacity | |
| CN109632802A (en) | Detect adjusting method in part front and back sides | |
| CN113724194B (en) | Engine endoscopic flame measurement system and image processing method | |
| CN206945041U (en) | More mesh coaxial configuration light 3D detection means |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190416 |
|
| RJ01 | Rejection of invention patent application after publication |