EP3794336A1 - Verfahren zum inspizieren von behältnissen mit positionsbestimmung - Google Patents
Verfahren zum inspizieren von behältnissen mit positionsbestimmungInfo
- Publication number
- EP3794336A1 EP3794336A1 EP19724805.7A EP19724805A EP3794336A1 EP 3794336 A1 EP3794336 A1 EP 3794336A1 EP 19724805 A EP19724805 A EP 19724805A EP 3794336 A1 EP3794336 A1 EP 3794336A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- marking
- image
- containers
- images
- image recording
- 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
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
- G01N21/909—Investigating the presence of flaws or contamination in a container or its contents in opaque containers or opaque container parts, e.g. cans, tins, caps, labels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/90—Investigating the presence of flaws or contamination in a container or its contents
- G01N21/9036—Investigating the presence of flaws or contamination in a container or its contents using arrays of emitters or receivers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
- G01N2021/8829—Shadow projection or structured background, e.g. for deflectometry
Definitions
- the present invention relates to an apparatus and a method for inspecting objects and in particular containers. Various such methods and devices are known in the prior art.
- the invention relates in particular to the control of labels which are arranged on objects and in particular containers.
- the purpose of such a label control is to scan the objects and in particular cases from all sides and to check the existing labels for different points, such as the presence of the label, the position, the
- the orientation of the containers with respect to its longitudinal direction is arbitrary. It is known from the prior art that the scanning of such containers takes place by means of several cameras. In this case, for example, matrix cameras can be used. Preferably, in devices known from the prior art, three, four or six cameras are used in one plane in a single plane. Furthermore, at least one observation level is present, but preferably also two or more levels.
- cutting lines are defined here between two adjacent images in order to achieve the seam-by-seam assembly in the panoramic image using different technologies.
- the position of the containers is determined by means of a camera, for example from above.
- a camera for example from above.
- the seam line can be determined exactly in both partial images. If, however, these values, ie the positions, are not exact, it is possible to attempt to search for and overlap so-called feature points in an overlapping region of the seam in the adjacent images. On the basis of these feature points, in turn, a seam line can be determined. Finally, the equalized partial images are joined together at a seam line. The result is a seamless panoramic image.
- a disadvantage of the above-mentioned determination of the interface by feature points is that it is not necessarily guaranteed that such feature points can be determined and clearly assigned in both images. This may be due, for example, to the fact that the two cameras have a very wide stereo base. The image content is also taken from very different perspectives.
- small-scale and large-area patterns often have a multitude of feature points that are always the same. In this case, too, correct assignment is not always guaranteed. In addition, it is also conceivable that such feature points are completely missing, that is, no feature points are found because the wrong features were selected. In this case, expert knowledge and knowledge about expected image content is necessary.
- the invention is therefore based on the object of eliminating the influence of the position determination, the contour determination, for example by silhouette and the like, and ultimately the sources of error in determining the surfaces of the actual container.
- An inventive device for inspecting objects and in particular beverage containers has a transport device which transports the objects along a predetermined transport path. Furthermore, the device has at least three image recording devices which are positioned in such a way that they receive spatially resolved images of the transported objects from different directions, wherein the device further comprises a position detection device for detecting at least one position of at least one section of the object.
- the position detection device is suitable and determines to detect a position of the object or its section with respect to at least one of the image recording devices and preferably with respect to a plurality of image recording devices.
- the position detection device has a first marking device which is suitable and intended to temporarily provide at least one surface section of the object with a marking (in particular a detectable marker and, in particular, a marking detectable by optical means), and a first marker.
- a marking in particular a detectable marker and, in particular, a marking detectable by optical means
- te sensor device which is suitable and intended to detect the temporarily located on the surface mark.
- the marking located temporarily on the surface is understood in particular to mean that this marking does not remain permanently on the object or the container (such as an imprint) but only temporarily, in particular for the purpose of an inspection.
- the marker may also be on the object during the time the picture was taken.
- the sensor device is suitable and determined to detect the marking optically.
- the sensor device is suitable and intended to detect the marking together with further regions of the container and in particular together with other surface portions of the container.
- This information can be localized by the detection itself or by additional measuring device and from this the preferred surface position of the container and in particular the surface position in the seam area can be determined.
- This actual surface position is preferably used to define the seam in the adjacent camera images.
- the objects are preferably containers and, in particular, equipped containers and, in particular, labeled containers.
- the containers are preferably in particular bottles, on which labels are applied. However, it may also be objects and in particular containers on which a pressure, in particular a direct printing is appropriate.
- the surfaces may also be surfaces and in particular printed surfaces of cans.
- the containers can also be plastic containers such as plastic cups.
- These containers can be used in particular in the areas of the beverage industry, flooring, healthcare and the food industry.
- the (at least) three image pickup devices are arranged substantially in the same plane. Particularly preferably, these image recording devices are arranged laterally next to the transport path and / or laterally next to the containers to be inspected.
- the image recording devices observe the containers in a horizontal direction. However, it would also be conceivable for the image recording devices to observe the containers from an oblique direction approximately obliquely from above.
- the device also has a lighting device which illuminates the containers.
- a lighting device which illuminates the containers.
- an incident light observation is preferably provided, i. the surfaces of the containers are preferably illuminated from one direction, which also has at least one component in the direction of observation.
- At least one illumination device is preferably synchronized to the image recording device.
- flash lighting devices could be provided.
- the illumination device has LED light sources.
- the sensor device is synchronized to the marking device and in particular triggered. This means that the marking device only applies the said marking to the containers for a very short time. and during this time the markings are detected by the sensor device (or image recording device).
- the image recording devices are synchronized with each other. This means that the image recording devices particularly preferably simultaneously record the respective images from the containers. It would also be a small time offset between the images possible, in which case preferably additionally compensates for and / or taken into account the movement of the container between the two shots
- the marking device is suitable and intended to apply the marking contactlessly on the surface of the container.
- Temporarily illuminating is to be understood in particular as meaning that the marking device can or is only switched on at the time of the position determination, but can also illuminate as long as the image recording device does not record spatially resolved images (or during the recording of the images is turned off by thessenaftereinrich- device).
- Marking and image acquisition preferably take place within a time interval of ⁇ 10 ms.
- the movement speed of the objects between mark recording and image recording is calculated to include the offset between mark recording and image recording in the position result.
- the transport device performs a linear transport of the containers.
- the transport device may have a conveyor belt and a transport chain on which the containers are conveyed.
- other holding elements for the containers would also be conceivable, for example holding elements which grip the containers at their mouths or below a support ring.
- the transport device transports the containers continuously.
- at least four such image recording devices or cameras are provided which record a spatially resolved image of the containers.
- a plurality of groups of image recording devices are provided, which are arranged one above the other, in particular on different planes with respect to the longitudinal direction of the container, that is to say also in particular a vertical direction. In this way, the containers can be observed in different levels. At least one position detection device as described above is preferably also provided in each of these planes.
- the information that is particularly preferably applied to the surface and particularly preferably in the region of a seam is preferably applied by the projection of a pattern, a line or a dot or a plurality of dots.
- the information can be recorded with the same camera shots that are used to create the panoramic image.
- the information can also be applied in the same camera image with which the panorama image is generated. By means of suitable processing steps, the information can be evaluated and eliminated. Or the information can be recorded in a second image recording of the same camera. If the container moves continuously, the second image acquisition should preferably take place in a temporally short sequence. However, it is also possible to record information through additional cameras.
- the number of additional cameras may also differ from the number of cameras for generating the panoramic image.
- the marking device has a
- Radiation device which acts on the surface with radiation.
- the radiation device may be a laser, but other light sources would also be conceivable, such as LEDs, power LEDs or the like. It would also be possible to use optical elements to apply the mark on the container surface, such as cylindrical lenses or the like.
- the marking device is a pattern projector which is suitable and intended to attach a marking with at least one line or one point on the surface of the object.
- the marking it would also be possible for the marking to have a multiplicity of points or even several lines. These lines can be curved or even straight.
- these lines it would also be possible for these lines to run parallel to a longitudinal direction of the object or container, but it would also be conceivable for the lines to run at a certain angle, for example at an angle or else perpendicular to a longitudinal direction of the container ,
- the light color of the pattern projector is freely selectable.
- the device has a processor device which is suitable and intended to assemble the images recorded by two image recording devices.
- this processor device is intended to assemble the respective images at a specific interface, and particularly preferably to assemble these images without a visible transition. In this way, a subsequent analysis of the recorded panorama picture thus obtained can be facilitated.
- the processor device preferably also creates a panoramic image on the basis of the at least two recorded images. Particularly preferably, this processor device is also controlled on the basis of the data from the said sensor device. This means that the panoramic image is also determined or created with the aid of the data recorded by the sensor device.
- the position detection device has at least one second marking device, which is suitable and intended to provide at least one surface section temporarily with a detectable marking. Again, it may be again about a laser or the like, which applies such a mark on the surface of the container to be inspected. As stated above, this is a temporary marking, which is recorded in particular by at least one image recording device.
- the device also has more than two such marking devices, and more preferably the number of marking devices corresponds to the number of image recording devices that receive the surface of the containers.
- This marking device can be offset relative to one another in a circumferential direction of the container. For example, they could be offset from each other by an angle between 70 ° and 110 ° in the circumferential direction of the container.
- the position detection device has a second sensor device, which is suitable and intended to detect the marker temporarily located on the surface.
- Each marking device is preferably associated with a corresponding sensor device.
- At least one image recording device also simultaneously functions as a sensor device.
- a plurality of image recording devices also function as sensor devices. It is conceivable that a control device is provided which controls the image pickup device such that first a recording for detecting the marking is performed and then a second for the images to be taken of the respective containers.
- the information can also be done with the same cameras in particular in a rapid sequence of recordings.
- this sequence preferably has at least two recordings, of which preferably at least one record receives temporarily additionally applied information or marking and at least one record contains no additional information, such as, in particular, the marking.
- the device therefore preferably has at least one control device which controls the image recording device such that a recording is first recorded, to capture the mark and then a second to capture the actual images of the containers.
- Data from such sensors may be provided in the manner of data preparation or data fusion of a unit that creates a panoramic strip.
- the position detection device has at least two sensor devices which are suitable and intended to detect the same marking. In this way, in particular an interface or a seam area between two images can be determined. Preferably, exactly two sensor devices detect said marking. In this way, these two sensor devices can control the corresponding image recording devices or even the processor device, which then later creates a panoramic image from two recorded images.
- the present invention is further directed to a method for inspecting objects, and in particular beverage containers.
- the objects are transported by a transport device along a predetermined transport path and spatially resolved images of the objects are taken from at least three image recording devices from different directions.
- a position detection device detects at least one position of at least one section of the object and in particular of at least one surface section of the object.
- a marking device temporarily provides a surface section of the object with a marking, and a sensor device detects this marking. It is therefore also suggested on the method side that the applied marking is detected by the sensor device in particular.
- the marking is particularly preferably an illumination of said surface section of the container and in particular of a surface section of the label placed on the containers. Therefore, the marking is temporarily preferred on a Applied label of the container to be inspected. In particular, this is a label which has been adhered to the container.
- the tag is selected from a group of tags containing lines, dots, grids, and the like.
- the at least one image recording device detects a label.
- the image recording device is also simultaneously the sensor device which detects the marking.
- the containers are transported in a straight line.
- the containers are transported isolated. Particularly preferably, a gap is left between two successive containers which corresponds at least to the cross-section of a container.
- the processor device combines an overall image and in particular a panoramic image from at least two recorded images.
- the processor device assembles a panoramic image from a plurality of recorded images and, in particular, from all images which have been recorded by a specific container.
- a panoramic image is composed of at least two recorded images, this panoramic image preferably being composed without the occurrence of a visible seam.
- a reaction to a recorded panoramic image is decided as to whether a container is retained in the product stream or is discharged therefrom.
- the device can therefore have a discharge device for discharging individual containers.
- the images taken by the image recording devices are assembled on the basis of the sensor data.
- two sensor devices are provided, which particularly preferably take pictures of two illumination devices. In this way, three image segments can be combined to form a panoramic image.
- Fig. 1 is a schematic representation of a device according to the invention
- Fig. 2 shows an arrangement of a device according to the internal prior art of the applicant
- FIG. 4 is an illustration for illustrating the invention underlying lowing problems
- FIGS. 5a-5c are three illustrations for illustrating recorded images
- FIG. 6a, 6b, 6c three illustration for illustrating a method according to the invention
- 7 shows a further illustration of a method according to the invention
- FIG. 8a, 8b Two further illustrations to illustrate a method according to the invention.
- FIG. 9 shows a further illustration of the method according to the invention.
- FIG. 1 shows a roughly schematic representation of a device 1 according to the invention.
- This device 1 has a transport device 2, which conveys objects to be examined, in particular containers 10, along a transport path P.
- This Transport path here is rectilinear, but in another embodiment could also be curved, for example circular segment-shaped.
- the reference numerals 12, 14, 16, 18 show four image recording devices, which are arranged in the circumferential direction around the containers 10 and the transport path of the containers.
- image recording devices 12, 14, 16, 18, which are in particular image cameras images of the container are taken.
- processor device 20 By means of a (only schematically illustrated) processor device 20, these images are assembled into an overall image. This is in particular a panorama picture
- FIG. 2 shows a construction of an arrangement known from the applicant's internal state of the art.
- six cameras 1 12, 1 14, 1 16, 1 18, 120 and 122 are provided, which are arranged in the circumferential direction around the container 10 and in particular consider the surface 10 a of the container.
- a label can be arranged on this surface 10a. In this way, the container 10 can be scanned from all sides and any existing labels can be checked for different points.
- the image recording devices or cameras 112 to 122 are arranged in a plane. More precisely, at least one level of a recognition unit is present. In addition, however, image recording devices could also be present in a plurality of planes arranged one above the other, that is to say in a direction perpendicular to the image plane, arranged above one another. In this case, areas B can be present, which can be recorded by two adjacent image recording devices.
- FIG. 3 shows a situation when either the position of the container can not be determined exactly or when the container shape deviates from the assumed shape.
- the assumed spatial position of the surface of the container does not correspond to the actual position.
- the reference numeral 01 identifies the theoretically assumed surface of the container.
- the reference numeral 02 denotes the surface of the actual container.
- the intersection point of the two beams S marked with the reference symbol P3 does not lie on the actual surface of the container (02) but on the assumed surface 01.
- the reference symbol ds denotes a displacement of the actual position relative to the assumed position of the container.
- the dashed lines of intersection angle indicate the actual impact location on the actual or actual container.
- FIG. 4 shows a further illustration to illustrate the formation of corresponding recorded panoramic images.
- the reference character E2 denotes a theoretically assumed surface of the container and the reference symbols E1 and E3 each staggered surfaces. Theoretically, at the surface position of level 2, the image content of the two image capture devices would be seamlessly joined together.
- FIGS. 5a to 5c show three illustrations for the reproduction of images.
- the surface position of the container coincides with the theoretical position.
- the individual image segments A1, A4 and A2 are reproduced realistically (and seamlessly), and a realistic or actually existing transition is also present in the region of intersection.
- parts of the image such as the pixels A3 and A1 are reproduced twice.
- parts of the image are swallowed, for example the image segments A4 shown in FIGS. 5a and 5b.
- the actual surface position in the seam area can not be determined with sufficient accuracy, and as a result, duplicate or missing texture portions can occur at the seam areas.
- Containers for drinks have different accuracies.
- beverage cans are precise to a diameter of 0.2 mm and oval in the same order of magnitude.
- a deviation of 0.4 mm from the theoretical cylinder surface occurs in practice.
- Glass containers sometimes have considerable diameter fluctuations of typically 1.5 to 2 mm. These also differ from a basic cylindrical shape by typically 1.5 mm. Even with an exact position determination, the local deformation of the container surface is an important aspect that is neglected in the prior art.
- the container position is estimated by its diameter in the distance.
- the local deformations, diameter tolerances and measurement errors do not provide a sufficiently accurate result.
- the location of the contour (line) would never coincide with the location of the seam line.
- Figure 6a illustrates a first embodiment of the present invention.
- two (only hinted) image recording devices 12 and 14 are again provided, which view the container 10 from different directions.
- the reference numeral 22 denotes the above-mentioned marking device, which applies here a mark 30 on the container surface.
- This may be, for example, a vertical line 30 or a lighting of the container with just this line.
- this marker 30 may be applied at one location, and preferably at locations and orientation, as a seam would pass between two images. A spatial reconstruction is not (necessarily) necessary.
- the laser line 30 determines the interface in the picture.
- Figures 6b and 6c show respectively taken pictures.
- the marking device serves to generate the information
- the image 6c shows the corresponding information, in particular the vertical line in FIGS. 6c and 6b.
- FIG. 6 b indicates that the image recorded by the image recording device 14 and FIG. 6 c is the image recorded by the image recording device 12.
- the marker 30 occurs, so that the images can be joined together at this point and, in particular, can be joined together seamlessly.
- the line 30 As shown in FIG. 7, it is therefore proposed to apply the line 30 to the position or location at which a seam subsequently runs between the images.
- a spatial construction is carried out as shown in FIG. 7 and the cutting lines in FIG redefined in neighboring pictures.
- the reference numeral S2 denotes the actual cutting angle and the reference S1 the theoretical cutting angle of the images.
- the reference numeral again indicates the information or marking applied to the containers, this information being applied here to the actual container position.
- FIG. 8a shows a further embodiment of the present invention
- FIG. 8b shows a correspondingly recorded camera image.
- one or more lines are applied in the region of the seam, which run with a deviating from the seam orientation. These lines can be recorded by both image recording devices (here only one image recording device shown), whereby the spatial surface position can be determined by means of triangulation.
- the cutting lines in the camera images can be redetermined. Accordingly, it would also be possible to project one or more patterns onto the surface to reconstruct the surface position by fringe projection. After determining the spatial surface position, the cutting lines in the camera lenses can be redetermined.
- FIG. 9 shows a further embodiment of the present invention. Here several points are projected onto the surface in the vicinity of the seam (shown in vertical dashed lines) and the surface position is reconstructed by means of a fringe projection. After determining the spatial surface position, the cutting lines in the camera images are redetermined.
- a (straight and / or at least partially curved) line becomes visible in both adjacent camera images.
- This line is shown in the vicinity of the seam of the image pickup device 12 and the image pickup device 14 for the two images shown in approximately FIGS. 6b and 6c.
- the projected seam line can be seen.
- this is to be determined in an image in order, for example, to merge the image part of the image recording device 12 located to the right of the information line with the one to the left of the information line of the image recording device 14 to form a seamless panorama piece. This is possible without additional knowledge about the images.
- the spatial reconstruction it is also generally possible with the spatial reconstruction to improve further information about the containers, their shape or their position, and the creation of a panoramic image.
- the point (s) can be detected, for example, on a camera image, and the coordinates can be determined on a camera image.
- another camera shot can be taken without projection in order to record the actual container surface or the actual label.
- the markings shown here such as seams can be straight, curved or zigzag-shaped.
- the information has been projected with suitable forms of information, it is possible to proceed alternatively or jointly in two different downstream processes.
- the seam can be determined directly in the image information of two adjacent camera recordings.
- the spatial surface position is determined by means of projection information, and on the basis of this the optimum seam line between two adjacent recordings is determined.
- a seam line can be applied before equalizing the camera image or after equalizing the camera image.
- a spatial reconstruction of the projected information on the containers also takes place with a dependency knowledge of the camera position of the viewing direction (intrinsic and extrinsic parameters) and a position and direction of the projection.
- a seam line can also be applied in sections.
- an exact determination of the seam line may be of minor importance and may also be erroneous (for example, in the case of labeled glass containers, the seam line is partly on the glass and partly on the glass) Label).
- the interesting or important parts are above all the lines that cover the label areas.
- the surface position of the container is precisely determined. This makes it possible for the first time to individually determine the cutting line between two adjacent images of a container for each container. This avoids image contents appearing or disappearing twice in the panorama image. Thus, it is possible with the invention that, for example, the minimum durability date in a seam area can be read completely and without errors.
- the influence of the container positioning is eliminated and / or the influence of the manufacturing tolerances of the containers is eliminated.
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- Physics & Mathematics (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Image Processing (AREA)
- Image Analysis (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018111638.1A DE102018111638A1 (de) | 2018-05-15 | 2018-05-15 | Verfahren zum Inspizieren von Behältnissen mit Petitionsbestimmung |
| PCT/EP2019/062430 WO2019219727A1 (de) | 2018-05-15 | 2019-05-15 | Verfahren zum inspizieren von behältnissen mit positionsbestimmung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3794336A1 true EP3794336A1 (de) | 2021-03-24 |
Family
ID=66589551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19724805.7A Pending EP3794336A1 (de) | 2018-05-15 | 2019-05-15 | Verfahren zum inspizieren von behältnissen mit positionsbestimmung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3794336A1 (de) |
| CN (1) | CN112567230B (de) |
| DE (1) | DE102018111638A1 (de) |
| WO (1) | WO2019219727A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113567453B (zh) * | 2021-07-30 | 2023-12-01 | 绿萌科技股份有限公司 | 检测系统、方法、计算机设备及计算机可读存储介质 |
| GB202112597D0 (en) * | 2021-09-03 | 2021-10-20 | Laetus Gmbh | Method and apparatus for image rectification and stitching |
| DE102022111734A1 (de) | 2022-05-11 | 2023-11-16 | Krones Aktiengesellschaft | Vorrichtung und Verfahren zum Inspizieren von Behältnissen mit Positionserfassung |
| CN116386904B (zh) * | 2023-03-24 | 2026-04-28 | 核工业西南物理研究院 | 一种高能激光吞噬器 |
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| DE102014005281B4 (de) * | 2014-04-09 | 2016-07-14 | Rodenstock Gmbh | Bestimmung der Position zumindest eines Brillenglases im Raum |
| DE102014107221A1 (de) * | 2014-05-22 | 2015-11-26 | Krones Ag | Vorrichtung und computer-implementiertes Verfahren für eine Etiketteninspektion |
| CN104050629A (zh) * | 2014-06-19 | 2014-09-17 | 樊晓东 | 一种隧道图像无标识拼接的方法 |
| DE102015218356A1 (de) * | 2015-09-24 | 2017-03-30 | Krones Ag | Inspektionsverfahren und -vorrichtung zur optischen Durchlichtinspektion von unetikettierten Behältern |
| US10309908B2 (en) * | 2017-01-11 | 2019-06-04 | Applied Vision Corporation | Light field illumination container inspection system |
-
2018
- 2018-05-15 DE DE102018111638.1A patent/DE102018111638A1/de active Pending
-
2019
- 2019-05-15 CN CN201980032585.6A patent/CN112567230B/zh active Active
- 2019-05-15 EP EP19724805.7A patent/EP3794336A1/de active Pending
- 2019-05-15 WO PCT/EP2019/062430 patent/WO2019219727A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN112567230A (zh) | 2021-03-26 |
| DE102018111638A1 (de) | 2019-11-21 |
| CN112567230B (zh) | 2025-05-06 |
| WO2019219727A1 (de) | 2019-11-21 |
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