CN104990942B - Transparent glass container manufacturing defect vision detection system and method - Google Patents
Transparent glass container manufacturing defect vision detection system and method Download PDFInfo
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- CN104990942B CN104990942B CN201510427763.9A CN201510427763A CN104990942B CN 104990942 B CN104990942 B CN 104990942B CN 201510427763 A CN201510427763 A CN 201510427763A CN 104990942 B CN104990942 B CN 104990942B
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Abstract
The present invention provides a kind of transparent glass container manufacturing defect vision detection system and method, including：The parallel surface source luminescence surface that polarizing plate sticking is covered in transparent glass container side to be detected makes it send linearly polarized light and illuminates container, camera lens tilts towards container and detects camera from bottom to the auxiliary of shoulder area image according to through container linearly polarized light formation container, at least one spectroscopic imaging system (including main detection camera, semi-transparent semi-reflecting lens, speculum and polariscope) of container opposite side opposite with parallel surface light source direction；Semi-transparent semi-reflecting lens will be divided into two beams through container linearly polarized light, and the first beam enters the highlights image of main detection camera formation container, enters the dark portion image of main detection camera formation container after the reflected mirror reflection of the second beam through polariscope；It is main and auxiliary to help detection camera to form image is sent to processing unit so that whether its determination container is defective.The system can accurately detect the common deficiency of transparent glass container, and precision is high, speed is fast, cost is low.
Description
Technical field
Lack the present invention relates to glass container manufacturing defect detection technique field, more particularly to a kind of manufacture of transparent glass container
Fall into vision detection system and method.
Background technology
Due to the special technological process for blowing of glass container, it is in the fabrication process because the reasons such as temperature, raw material may be produced
Raw number of drawbacks, such as calculus, dross, burst, size is incorrect, diagonal distortion, inclined base thickness, stress concentration the problems such as.
At present, glass container manufacturing enterprise relies primarily on after product completes blowing and manually detected.But artificial detection
The shortcomings of there is high human cost height, inefficiency, loss, accuracy of detection and relatively low precision uniformity.And at the same time, from
Dynamicization vision detection system is because it is quick, noncontact, cost are low and once shoots that can to complete multinomial detection function etc. simultaneously excellent
Point is widely popularized in recent years to be used.
In consideration of it, how to provide, a kind of accuracy of detection is high, detection speed is fast, cost is low and transparent glass container can exist
Transparent glass container manufacturing defect vision detection system and method that common deficiency in production process is all accurately detected
As the technical problem for being currently needed for solving.
The content of the invention
The present invention provides a kind of transparent glass container manufacturing defect vision detection system and method, can hold clear glass
Device common deficiency in process of production is all quickly and accurately detected, with accuracy of detection is high, detection speed is fast, into
This low advantage, efficiently solves transparent glass container manufacturing line with being difficult to omnibearing non-blind area automatic to product quality
Change the problem of detection.
In a first aspect, the present invention provides a kind of transparent glass container manufacturing defect vision detection system, including：Parallel surface light
Source, polarizer, auxiliary detection camera and at least one spectroscopic imaging system；
The parallel area source and polarizer are located at the side of transparent glass container to be detected, the polarizing plate sticking covering
On the light-emitting area of the parallel area source, the parallel area source is set to send linearly polarized light and illuminate described to be detected transparent
Glass container；
It is opposite with the parallel surface light source direction that the spectroscopic imaging system is located at the transparent glass container to be detected
Opposite side, the spectroscopic imaging system includes：Main detection camera, semi-transparent semi-reflecting lens, speculum and polariscope；
Linearly polarized light through the transparent glass container to be detected is divided into two-beam, the first beam by the semi-transparent semi-reflecting lens
Light is directly entered the highlights image that the main detection camera forms the transparent glass container to be detected, and the second beam light is by described
After the reflection of speculum, be then passed through the polariscope enter it is described it is main detection camera form the transparent glass container to be detected
Dark portion image；
The camera lens of the auxiliary detection camera is tilted upward towards the transparent glass container to be detected, according to through described
The linearly polarized light of transparent glass container to be detected forms image of the transparent glass container to be detected from bottom to shoulder region；
The image that the main detection camera and auxiliary detection camera are formed is sent to processing unit, so that described
Processing unit determines whether the transparent glass container to be detected is defective.
Alternatively, the polarization angle of the polariscopic polarization angle and the polarizer is mutually perpendicular to.
Alternatively, the half field range of the main detection camera is in width according to light beam formation
The complete highlights image of the upper transparent glass container to be detected；
Second half field range of the main detection camera is the institute in the direction of the width according to the second beam light formation
State the complete dark portion image of transparent glass container to be detected.
Alternatively, the focal centre length and the bottom level phase of the transparent glass container to be detected of the auxiliary detection camera
Together.
Alternatively, the main detection camera and the auxiliary detect that camera is industrial camera.
Alternatively, the camera brightness of the main detection camera imaging is difficult to observe defect both only secretly to cause, also not
Crossing bright makes tiny flaw be disappeared due to image overexposure.
Alternatively, the brightness of the auxiliary detection camera imaging is wholly absent to be bright to unsmooth area shading.
Second aspect, the present invention provides a kind of based on the transparent of above-mentioned transparent glass container manufacturing defect vision detection system
Glass container manufacturing defect visible detection method, including：
Obtain the image for the transparent glass container to be detected that main detection camera is sent；
Highlights image in the image sent according to the main detection camera, detects the transparent glass container to be detected
Calculus, dross, burst, size is incorrect, diagonal distortion defect；
Dark portion image in the image sent according to the main detection camera, detects the transparent glass container to be detected
The defect of stress concentration；
Obtain image of the transparent glass container to be detected of auxiliary detection camera transmission from bottom to shoulder region；
Image of the transparent glass container to be detected of camera transmission from bottom to shoulder region, inspection are detected according to the auxiliary
Survey the bottom of bottle thickness of the transparent glass container to be detected and the defect in body shoulder logo logo regions.
Alternatively, the dark portion image in the image according to the main detection camera transmission, is detected described to be detected
The defect of the stress concentration of bright glass container, is specifically included：
Detect in the dark portion image in the image that the main detection camera is sent and whether there is speck, if there is speck,
Determine that the transparent glass container to be detected has the defect of stress concentration.
As shown from the above technical solution, transparent glass container manufacturing defect vision detection system of the invention and method, energy
It is enough by transparent glass container in process of production common deficiency (such as calculus, dross, burst, size is incorrect, diagonal distortion,
Inclined base thickness, stress concentration, vessel surface such as unsmooth subsurface defect in the unsmooth region such as rib, logo logo etc.) it is complete
Portion is quickly and accurately detected, and with accuracy of detection is high, detection speed is fast, low cost and other advantages, is efficiently solved transparent
Glass container manufacturing line with being difficult to omnibearing non-blind area problem of automatic detection to product quality.
Brief description of the drawings
The structural representation for the transparent glass container manufacturing defect vision detection system that Fig. 1 provides for one embodiment of the invention
Figure；
Fig. 2 is spectroscopic imaging system and auxiliary detection in transparent glass container manufacturing defect vision detection system shown in Fig. 1
The structure and mounting means schematic diagram of camera；
Fig. 3 for one embodiment of the invention provide based on the vision detection system of transparent glass container manufacturing defect shown in Fig. 1
Transparent glass container manufacturing defect visible detection method schematic flow sheet；
Reference：
1st, main detection camera；2nd, semi-transparent semi-reflecting lens；3rd, speculum；4th, polariscope；5th, auxiliary detection camera；6th, it is to be detected
Bright glass container；7th, polarizer；8th, parallel area source；9th, spectroscopic imaging system；10th, transparent glass container manufacturing defect vision is examined
Examining system；11st, processing unit.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
Glass container manufacturing defect can be divided into three classes.The first kind is that vision can be directly observed, and such as calculus, dross, is fried
Split, size is incorrect, diagonal distortion etc..For this kind of defect, automatic visual detecting system can be by imitating mankind's visual inspection
Method is detected, i.e., place light source by the container back side, and industrial camera checks the printing opacity situation of container in opposite side, works as presence
During the Observable defect such as calculus, the light through defect area will be blocked and produce shade.Equations of The Second Kind must be seen special
Location, which is put, to be observed, such as inclined base thickness must visual angle bottom of bottle highly can detect bottom of bottle consistency of thickness.3rd class
It can not be directly observed, mainly stress concentration defect.It may be produced when glass firing temperature goes wrong in some regions
The problem of raw stress concentration, there is the region of stress concentration when container inner pressure is higher has the danger blown.Internal stress free
Glass is isotropic body；And after stress concentration is produced, aeolotropic crystal will be changed into, with rotation effect, by inclined
The photoimaging that shakes can show it.
The structural representation for the transparent glass container manufacturing defect vision detection system that Fig. 1 provides for one embodiment of the invention
Figure, as shown in figure 1, the transparent glass container manufacturing defect vision detection system 10 of the present embodiment, including：Parallel area source 8, partially
Piece 7, the auxiliary of shaking detect camera 5 and at least one spectroscopic imaging system 9；
The parallel area source 8 and polarizer 7 are located at the side of transparent glass container to be detected, and the polarizer 7 is pasted
On the light-emitting area for being covered in the parallel area source 8, the parallel area source 8 is set to send linearly polarized light and illuminate described to be checked
Survey transparent glass container 6；
The spectroscopic imaging system 9 is located at the transparent glass container 6 to be detected and the parallel area source 8 is in opposite direction
Opposite side, the spectroscopic imaging system 9 includes：Main detection camera 1, semi-transparent semi-reflecting lens 2, speculum 3 and polariscope 4；
Linearly polarized light through the transparent glass container 6 to be detected is divided into two-beam, first by the semi-transparent semi-reflecting lens 2
Shu Guang is directly entered (completely) highlights image, second that the main detection camera 1 forms the transparent glass container to be detected 6
Shu Guang after the reflection of the speculum 3, be then passed through the polariscope 4 and enter the main detection camera 1 forming described treat
Detect (completely) dark portion image of transparent glass container 6；
The camera lens of the auxiliary detection camera 5 is tilted upward towards the transparent glass container 6 to be detected, according to through institute
The linearly polarized light for stating transparent glass container 6 to be detected forms the transparent glass container to be detected 6 from bottom to shoulder region
Image；
The image that the main detection camera 1 and the auxiliary detection camera 5 are formed is sent to processing unit 11, so that
The processing unit 11 determines whether the transparent glass container to be detected 6 is defective.
In a particular application, the polarization angle of the polarization angle of polariscope 4 described in the present embodiment and the polarizer 7 is mutual
Vertically.
In a particular application, the half field range of main detection camera 1 is according to the light beam described in the present embodiment
The complete highlights image of the transparent glass container 6 to be detected described in the direction of the width formed；It is described it is main detection camera 1 it is another
Half field range be according to the second beam light formation transparent glass container 6 to be detected described in the direction of the width it is complete
Dark portion image.
In a particular application, the focal centre length and the clear glass to be detected of auxiliary detection camera 5 described in the present embodiment
The bottom level of container 6 is identical.
In a particular application, main detection camera 1 described in the present embodiment and the auxiliary detection camera 5 are preferable for industry
Camera.
In a particular application, the camera brightness that main detection camera 1 described in the present embodiment is imaged is difficult to both only secretly to cause
Defect is observed, it is only bright tiny flaw is disappeared due to image overexposure.
In a particular application, the brightness that auxiliary detection camera 5 described in the present embodiment is imaged arrives unsmooth area shading to be bright
It is wholly absent.
It should be noted that the transparent glass container manufacturing defect vision-based detection of processing unit 11 in Fig. 1 in the present embodiment
The outside of system 10, is connected with the main detection camera 1 and the auxiliary detection camera 5, for receiving the main detection respectively
The image that camera 1 and the auxiliary detection camera 5 are sent, detect the transparent glass container 6 to be detected defect (such as calculus,
Dross, burst, size is incorrect, diagonal distortion, inclined base thickness, stress concentration, the vessel surface such as unsmooth region such as rib, logo
Unsmooth subsurface defect etc.)；The processing unit 11 can be preferably industrial computer.
It will be appreciated that the semi-transparent semi-reflecting lens 2 in spectroscopic imaging system 9 described in the present embodiment will pass through it is described to be detected
(polarizer 7 is pasted to be covered on the light-emitting area of the parallel area source 8 linearly polarized light of bright glass container 6, is made described parallel
Area source 8 sends linearly polarized light) be divided into two-beam, i.e., described semi-transparent semi-reflecting lens 2 are by the picture of the transparent glass container 6 to be detected
Replicated.Light beam be directly entered it is described it is main detection camera 1 be imaged (i.e. described transparent glass container to be detected 6 it is complete
Whole highlights image), when system call interception where appropriate, the picture can cover the width of container, you can to observe that container is high
The part spent on direction, while the image brightness is suitable, makes both only secretly to be difficult to observe defect, only bright to make tiny flaw
Disappeared due to image overexposure, the second beam light after the reflection of the speculum 3, be then passed through the polariscope 4 and enter institute
State main detection camera 1 and be imaged (the complete dark portion image of i.e. described transparent glass container to be detected 6), adjustment system makes the two
Half as respectively accounting for the main detection field of view scope of camera 1 substantially or so, the first half field range is referred to as highlights, later half
Field range is referred to as dark portion.Polarization direction and the polarization direction phase for the polarizer pasted on parallel area source due to polariscope 4
It is mutually vertical, therefore by delustring when light passes through polariscope 4 under normal circumstances, so the image that the main detection camera 1 is formed
On dark portion image be complete dark, the luminance difference with highlights image is notable.And exist when on the transparent glass container 6 to be detected
Region of stress concentration, because stress glass in the region is changed into aeolotropic crystal, so that rotation effect is produced, through inclined
Shake piece 7 linearly polarized light pass through the transparent glass container 6 to be detected region of stress concentration when polarization direction change, from
And there is light to pass through when passing through polariscope 4, so dark portion image when the main detection camera 1 is imaged is with the presence of speck,
By detecting that the dark portion body region (i.e. dark portion image) of the transparent glass container to be detected 6 can determine whether with the presence or absence of speck
It whether there is stress concentration situation in the current angular visibility region of transparent glass container to be detected 6.
It should be noted that when the debugging for carrying out transparent glass container manufacturing defect vision detection system 10 described in the present embodiment
When, polariscope is removed first, and the position of each optical element of adjustment spectroscopic imaging system 9 and angle are formed main detection camera 1
Image divided equally substantially by highlights image and dark portion image, and respectively can be into clearly complete including container width direction
Picture, now dark portion is also bright.
After the completion of hardware adjustment, in order to further improve detection accuracy, software can be trained, i.e., to two pictures
The position relationship of (i.e. highlights image and dark portion image) is by training opening relationships.All it is due to removing the two pictures after polariscope
It is bright visible, it is possible to which that the position respectively by algorithm to the transparent glass container 6 to be detected on image is automatically fixed
Position.If the position of the picture of highlights image and dark portion image of the transparent glass container to be detected 6 on image is respectively [x1,
y1] ' and [x2, y2]′.Because used optical element is all planar lens or speculum, so [x1, y1] ' and [x2, y2]′
Affine transformation relationship is met, i.e.,：
Wherein, aijAnd bi(i, j=1,2) is system constants, is held by repeatedly shooting the clear glass to be detected
The image of device 6 and obtain after positioning result using least square method determine.
Behind the region to be detected for drawing two pictures in the picture, polariscope 4 is installed and adjustment angle makes dark portion arrival most dark.
Debugging is finished.
During normal operation detection, pass through highlights picture position [x1, y1] ' calculate dark portion image should position [x2,
y2] ', is so that mobile each region to be detected of dark portion to position is detected.
It will be appreciated that the focal centre length and the clear glass to be detected of auxiliary detection camera 5 described in the present embodiment are held
The bottom of bottle of device 6 is highly identical, the polarization light horizontal through bottom of bottle is imaged into the auxiliary detection camera 5, so as to
Most accurately to be detected to bottom of bottle thickness, when bottom of bottle thickness is blocked up, excessively thin or during inclined base thickness, can detect exactly
Come；
The auxiliary detection camera 5 tilts upward shooting, field range to the transparent glass container 6 to be detected simultaneously
Shoulder height.Because there is logo logo in general shoulder portion, the interference of logo regions is tight for the main detection imaging of camera 5
Weight, detectable precision is relatively low or even as blind area.Auxiliary detection camera 5 described in the present embodiment is by tilt and improves brightness
The mode refraction shadow removal that causes logo, can detect that the main detection camera 1 is difficult to the body back side logo detected
Region, so that dead zone-eliminating, improves accuracy of detection.
The transparent glass container manufacturing defect vision detection system of the present embodiment, can produce transparent glass container
In journey common deficiency (such as calculus, dross, burst, size is incorrect, diagonal distortion, inclined base thickness, stress concentration, vessel surface
Unsmooth subsurface defect in such as unsmooth region of rib, logo etc.) all quickly and accurately detect, with inspection
Survey precision is high, detection speed is fast, low cost and other advantages, efficiently solves transparent glass container manufacturing line to product quality
With the being difficult to omnibearing non-blind area problem of automatic detection.
In summary, the transparent glass container manufacturing defect vision detection system of the present embodiment has some following advantage：
1. non-contact detecting.By the way of vision-based detection, to glass container noncontact.It can avoid what container was caused
Damage and pollute.
2. accuracy of detection is high., can be to macroscopic calculus, dross etc. on container by using high-resolution camera imaging
Number of drawbacks is detected exactly, while can need easily to adjust according to production to accuracy of detection.Particularly add
Auxiliary detection camera, is truly realized non-blind area detection.
3. calculating speed is fast.The detection speed of 600 bottles/minute can be supported to be not less than, production line demand is fully met.
4. detectable defect kind is more.For number of drawbacks common in glass container manufacturing process, such as calculus, dross,
Burst, size is incorrect, diagonal distortion, inclined base thickness, stress concentration etc. can realize online high precision test.
5. convenient adjustment.Due to by the way of each optical module is independently installed, it is possible to according to the appearance produced
Device size, shape are easily adjusted to adapt to the demand of detection to system.Particularly polariscope can be dismounted easily, can
To be trained before manufacture to software with the further accuracy for improving detection.
Fig. 3 show one embodiment of the invention provide based on the vision-based detection of transparent glass container manufacturing defect shown in Fig. 1
The schematic flow sheet of the transparent glass container manufacturing defect visible detection method of system, as shown in figure 3, the transparent glass of the present embodiment
Glass vessel fabrication defective vision detection method is as described below.
301st, the image for the transparent glass container to be detected that main detection camera is sent is obtained.
302nd, the highlights image in the image of the main detection camera transmission, detects that the clear glass to be detected holds
The calculus of device, dross, burst, size is incorrect, diagonal distortion defect.
303rd, the dark portion image in the image of the main detection camera transmission, detects that the clear glass to be detected holds
The defect of the stress concentration of device.
In a particular application, the step 303, can be specifically included：
Detect in the dark portion image in the image that the main detection camera is sent and whether there is speck, if there is speck,
Determine that the transparent glass container to be detected has the defect of stress concentration.
304th, image of the transparent glass container to be detected of auxiliary detection camera transmission from bottom to shoulder region is obtained.
305th, figure of the transparent glass container to be detected of camera transmission from bottom to shoulder region is detected according to the auxiliary
Picture, detects the bottom of bottle thickness of the transparent glass container to be detected and the defect in body shoulder logo logo regions.
The transparent glass container manufacturing defect visible detection method of the present embodiment, by transparent in embodiment illustrated in fig. 1
Processing unit outside glass container manufacturing defect vision detection system realizes, the processing unit and Fig. 1 or system shown in Figure 2
Main detection camera and auxiliary detection camera connect respectively, can real-time reception it is main detection camera and auxiliary detection camera send
Image, and the defects detection of the method progress transparent glass container to be detected according to the present embodiment, for example, the processing unit
It can be industrial computer.
The transparent glass container manufacturing defect visible detection method of the present embodiment, based on the transparent glass container shown in Fig. 1
Manufacturing defect vision detection system, can be by the common deficiency of transparent glass container in process of production (such as calculus, dross, fried
Split, size is incorrect, the injustice in diagonal distortion, inclined base thickness, stress concentration, the vessel surface such as unsmooth region such as rib, logo
Sliding subsurface defect etc.) all quickly and accurately detect, with accuracy of detection is high, detection speed is fast, cost is low excellent
Point, efficiently solves with the being difficult to omnibearing non-blind area automatic detection to product quality of transparent glass container manufacturing line
Problem.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can pass through
Programmed instruction related hardware is completed.Foregoing program can be stored in a computer read/write memory medium.The program
Upon execution, the step of including above-mentioned each method embodiment is performed；And foregoing storage medium includes：ROM, RAM, magnetic disc or
CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from claim of the invention and protect
The scope of shield.
Claims (8)
1. a kind of transparent glass container manufacturing defect vision detection system, it is characterised in that including：Parallel area source, polarizer,
Auxiliary detection camera and at least one spectroscopic imaging system；
The parallel area source and polarizer are located at the side of transparent glass container to be detected, and the polarizing plate sticking is covered in institute
On the light-emitting area for stating parallel area source, the parallel area source is sent linearly polarized light and illuminate the clear glass to be detected
Container；
The spectroscopic imaging system is located at another opposite with the parallel surface light source direction of the transparent glass container to be detected
Side, the spectroscopic imaging system includes：Main detection camera, semi-transparent semi-reflecting lens, speculum and polariscope；
Linearly polarized light through the transparent glass container to be detected is divided into two-beam by the semi-transparent semi-reflecting lens, and light beam is straight
The highlights image that the transparent glass container to be detected is formed into the main detection camera is tapped into, the second beam light passes through the reflection
After the reflection of mirror, be then passed through the polariscope enter it is described it is main detection camera form the dark of the transparent glass container to be detected
Portion's image；
The camera lens of the auxiliary detection camera is tilted upward towards the transparent glass container to be detected, according to through described to be checked
The linearly polarized light for surveying transparent glass container forms image of the transparent glass container to be detected from bottom to shoulder region, described
The focal centre length of auxiliary detection camera is identical with the bottom level of the transparent glass container to be detected；
The image that the main detection camera and auxiliary detection camera are formed is sent to processing unit, so that the processing
Device determines whether the transparent glass container to be detected is defective；
Wherein, the processing unit detects the transparent glass container to be detected of camera transmission from bottom to shoulder according to the auxiliary
The image in region, detects the bottom of bottle thickness of the transparent glass container to be detected and the defect in body shoulder logo logo regions.
2. system according to claim 1, it is characterised in that the polariscopic polarization angle is inclined with the polarizer
Angle of shaking is mutually perpendicular to.
3. system according to claim 1, it is characterised in that the half field range of the main detection camera is according to institute
State the complete highlights image of the transparent glass container to be detected described in the direction of the width of light beam formation；
Second half field range of the main detection camera is described in the direction of the width the treating according to the second beam light formation
Detect the complete dark portion image of transparent glass container.
4. system according to claim 1, it is characterised in that the main detection camera and auxiliary detection camera are
Industrial camera.
5. system according to claim 1, it is characterised in that the camera brightness of the main detection camera imaging is both only
Secretly cause and be difficult to observe defect, it is only bright tiny flaw is disappeared due to image overexposure.
6. system according to claim 1, it is characterised in that the brightness of the auxiliary detection camera imaging is to be bright to injustice
Sliding area shading is wholly absent.
7. a kind of transparent glass container manufacturing defect visible detection method based on system any one of claim 1 to 6,
It is characterised in that it includes：
Obtain the image for the transparent glass container to be detected that main detection camera is sent；
Highlights image in the image sent according to the main detection camera, detects the knot of the transparent glass container to be detected
Stone, dross, burst, size is incorrect, diagonal distortion defect；
Dark portion image in the image sent according to the main detection camera, detects the stress of the transparent glass container to be detected
The defect of concentration；
Obtain image of the transparent glass container to be detected of auxiliary detection camera transmission from bottom to shoulder region；
Image of the transparent glass container to be detected of camera transmission from bottom to shoulder region is detected according to the auxiliary, institute is detected
State the bottom of bottle thickness of transparent glass container to be detected and the defect in body shoulder logo logo regions.
8. method according to claim 7, it is characterised in that in the image according to the main detection camera transmission
Dark portion image, detects the defect of the stress concentration of the transparent glass container to be detected, specifically includes：
Detect in the dark portion image in the image that the main detection camera is sent and whether there is speck, if there is speck, it is determined that
The transparent glass container to be detected has the defect of stress concentration.
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| CN107084994B (en) * | 2017-06-22 | 2023-08-11 | 山东明佳科技有限公司 | Transparent container opening crack detection system and method |
| CN107727668B (en) * | 2017-11-03 | 2023-11-14 | 浙江科技学院 | Transparent medium single-sided selective imaging method and device based on polarization extinction |
| US20200049619A1 (en) * | 2018-08-08 | 2020-02-13 | GM Global Technology Operations LLC | Polarized light filter vision system to detect level of temper in glass |
| CN110047067B (en) * | 2019-04-02 | 2021-06-22 | 广州大学 | Bottle shoulder detection method for bottle classification |
| CN110108715B (en) * | 2019-05-06 | 2022-03-04 | 哈尔滨理工大学 | Defect detection method for transparent parallel flat plate |
| CN110839100A (en) * | 2019-11-18 | 2020-02-25 | 东莞智得电子制品有限公司 | Mobile phone key detection method and system |
| CN111443093B (en) * | 2020-04-23 | 2023-10-13 | 北京大恒图像视觉有限公司 | Transparent container detection device and detection method |
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