CN116029993A

CN116029993A - Position determination method of virtual mark point, cutting precision detection method and device

Info

Publication number: CN116029993A
Application number: CN202211643875.4A
Authority: CN
Inventors: 殷亚男; 许超
Original assignee: Suzhou Mega Technology Co Ltd
Current assignee: Suzhou Mega Technology Co Ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-04-28

Abstract

The invention provides a method and a device for determining the position of a virtual mark point. The method comprises the following steps: receiving a first image of the panel edge area with two first real marking points, and receiving a second image of the panel edge area with 1 second real marking point; determining a first connecting line of two first real marking points in the first image; determining the positions of the virtual marking points in a coordinate system where the first image and the second image are located according to a preset relationship among the second real marking point, the first connecting line and the second connecting line in the second image and a preset distance between the second real marking point and the virtual marking point to be determined; the second connecting line is a connecting line between the second real marking point and the virtual marking point. According to the coordinates of the virtual mark points' and the edge lines identified for the edge area of the side of the panel, the cutting precision of the panel can be obtained.

Description

Position determination method of virtual mark point, cutting precision detection method and device

Technical Field

The invention relates to the technical field of inspection, in particular to an image enhancement method and device, a positioning method and device, an inspection method and device and a storage medium.

Background

The inspection equipment is mainly used for detecting whether defects exist in the edge areas of four edges of the upper surface and the lower surface of the display panel formed by bonding the color film substrate CF and the array substrate TFT after cutting or grinding, for example, defects such as cracks, shells, fragments and burrs exist. The method aims to remove the display panel with the defect or larger defect for the subsequent process. The edge inspection machine device generally comprises a visual processing system, wherein the visual processing system comprises a shooting module and a processing module, the shooting module is mainly used for shooting pictures of edge areas and sending the pictures to the processing module, and the processing module is mainly used for carrying out edge recognition on the pictures sent by the shooting module and determining cutting accuracy.

In general, the area of the CF substrate is smaller than that of the TFT substrate, mark points are further provided on the TFT substrate, and the dicing accuracy is generally expressed by the difference between the actual vertical distance between the outer edge of one side of the TFT substrate and the mark on that side and the theoretical vertical distance. As is clear from this, the dicing accuracy is strongly correlated with the mark point, however, at present, only the mark point is provided on the side having the step surface on the TFT substrate, and the mark point is not designed on the other side, which makes it difficult to obtain the dicing accuracy of each side.

Disclosure of Invention

The present invention has been made in view of the above-described problems. The invention provides a position determining method of a virtual mark point, which can solve the problem that cutting precision cannot be measured.

The invention provides a method for determining the position of a virtual mark point, which comprises the following steps:

a receiving step: receiving a first image of the panel edge area with two first real marking points and receiving a second image of the panel edge area with 1 second real marking point;

and a connection line determining step: determining a first connecting line of two first real marking points in the first image;

virtual mark point determining step: determining the positions of the virtual marking points in the coordinate systems of the first image and the second image according to the second real marking point in the second image, the first connecting line, the preset relation of the first connecting line and the second connecting line and the preset distance between the second real marking point and the virtual marking point to be determined; the second connecting line is a connecting line between the second real marking point and the virtual marking point.

Optionally, the method further comprises:

an image acquisition step: an image acquisition module moves an edge region of the panel in a first direction to acquire the first image of the edge region of one side of the panel and acquire the second image of the edge region of the other side of the panel after rotation.

Optionally, the method further comprises:

the edge region of the panel on only the first side includes: a first true mark point and a second true mark point;

the image acquisition step specifically includes: the image acquisition module is used for moving and shooting the edge area of the first side of the panel to acquire the first image, and moving and shooting the edge areas of the second side and the third side of the panel after rotation to correspondingly acquire two second images; wherein the second side and the third side are both adjacent to the first side;

the virtual mark point determining step specifically includes: and determining two virtual marking points according to the two second images in one-to-one correspondence.

Optionally, the method further comprises:

the edge region of the first side of the panel includes: a first true mark point, an edge region of a second side of the panel adjacent to the first side comprising: a third true mark point; the overlapping edge regions on the first and second sides of the panel further comprise: a second true mark point;

the image acquisition step specifically includes: the image acquisition module moves an edge region of a first side of the panel to acquire the first image, and moves an edge region of a third side of the panel after the rotation of the panel to acquire the second image, wherein the third side is adjacent to the first side.

Optionally, the method further comprises:

an image acquisition step: the first image acquisition module moves an edge region of one side of the panel along a first direction to acquire the first image, and the second image acquisition module moves an edge region of the other side of the panel along a second direction to acquire the second image.

Optionally, the method further comprises: the number of the image acquisition modules is a plurality; the plurality of image acquisition modules respectively move and shoot edge areas of different sides of the panel along different directions.

Optionally, the method further comprises: the first direction and the second direction are parallel; the edge region of the panel on only the first side includes: a first true mark point and a second true mark point;

the image acquisition step specifically includes: the first image acquisition module is used for moving and shooting the edge area of the first side of the panel along a first direction so as to acquire the first image; the first image acquisition module and the second image acquisition module respectively move edge areas of the second side and the third side of the panel after shooting rotation along respective moving directions so as to acquire two second images; wherein the second side and the third side are each adjacent to the first side, the second side and the third side being opposite;

Optionally, the first direction and the second direction are parallel; the edge region of the first side of the panel includes: a first true mark point, an edge region of a second side of the panel adjacent to the first side comprising: a third true mark point; the overlapping edge regions on the first and second sides of the panel further comprise: a second true mark point;

the image acquisition step specifically includes: the first image acquisition module moves an edge region of a first side of the panel along a first direction to acquire the first image, and the second image acquisition module moves an edge region of a fourth side of the panel along a second direction to acquire the second image, wherein the fourth side is adjacent to the second side.

The invention also provides a cutting precision detection method, which comprises the following steps:

virtual mark point determining step: determining by adopting the position determining method of the virtual mark points;

edge line detection: detecting images shot by edge areas on each side of the panel, and detecting edge lines of the panel;

a cutting precision determining step: and calculating the cutting precision of each side edge of the panel according to the virtual mark point, the real mark point and the outer edge line which are determined by each side edge area of the panel.

Optionally, the method further comprises:

and a display step: displaying the calculated cutting accuracy.

The invention also provides a position determining device of the virtual mark point, which comprises:

the receiving module is used for receiving a first image with two real marking points of the panel edge area and receiving a second image with 1 real marking point of the panel edge area;

the connecting line determining module is used for determining a first connecting line of two first real marking points in the first image;

the virtual mark point determining module is used for determining the positions of the virtual mark points in the coordinate systems where the first image and the second image are located according to the second real mark point, the first connecting line, the preset relation of the first connecting line and the second connecting line and the preset distance between the second real mark point and the virtual mark point to be determined; the second connecting line is a connecting line between the second real marking point and the virtual marking point.

The invention also provides a cutting precision detection device, which comprises:

the virtual mark point determining module comprises the position determining device of the virtual mark point;

the edge line detection module is used for detecting images shot by the edge area of each side of the panel and detecting edge lines of the panel;

and the cutting precision determining module is used for calculating the cutting precision of each side edge of the panel according to the virtual marking point, the real marking point and the outer edge line which are determined by each side edge area of the panel.

The invention also provides electronic equipment comprising the cutting precision determining device. The present invention also provides a storage medium on which program instructions are stored, which program instructions, when executed, are adapted to carry out the position determining method of the virtual marker point provided as described above, or the cutting accuracy detecting method provided as described above.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a flowchart of a method for determining a position of a virtual marker point according to an embodiment of the present invention;

FIG. 2 is a schematic diagram showing a relationship between a panel and an image acquisition module according to a first embodiment of the present invention;

FIG. 3 is a schematic diagram showing a relationship between a panel and an image acquisition module according to a second embodiment of the present invention;

FIG. 4 is a schematic diagram showing a relationship between a panel and an image acquisition module according to a third embodiment of the present invention;

FIG. 5 is a schematic diagram showing a relationship between a panel and an image acquisition module according to a fourth embodiment of the present invention;

FIG. 6 is a flowchart of a method for detecting cutting accuracy according to an embodiment of the present invention;

fig. 7 is a schematic block diagram of a position determining apparatus for virtual marker points according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail with reference to the accompanying drawings. It should be apparent that the described embodiments are only some embodiments of the present invention and not all embodiments of the present invention, and it should be understood that the present invention is not limited by the example embodiments described herein. Based on the embodiments of the invention described in the present application, all other embodiments that a person skilled in the art would have without inventive effort shall fall within the scope of the invention.

To at least partially solve the above technical problems, an embodiment of the present invention provides a method for determining a position of a virtual marker point, as shown in fig. 1, the method includes:

s1, receiving: a first image of the panel edge area having two first true mark points is received, and a second image of the panel edge area having 1 second true mark point is received.

S2, determining connection lines: determining a first connecting line of two first real marking points in the first image;

s3, determining virtual marking points: determining the positions of the virtual marking points in a coordinate system where a first image and a second image are located according to a second real marking point in the second image, the first connecting line, a preset relation among the first connecting line and the second connecting line and a preset distance between the second real marking point and the virtual marking point to be determined; the second connecting line is a connecting line between the second real marking point and the virtual marking point.

In this embodiment, the method further includes:

an image acquisition step: the image acquisition module moves an edge region of the photographing panel in a first direction to obtain a first image of the edge region of one side of the panel and to obtain a second image of the edge region of the other side of the rotated panel.

As shown in fig. 2, the edge region of the panel on only the first side includes: a first real mark point mark1 and a second real mark point mark2; the image acquisition step specifically includes: the image acquisition module moves the edge area of the first side of the shooting panel along a first direction to acquire a first image 10, wherein the first image comprises a first real mark point mark1 and a second real mark point mark2; and, moving the edge areas of the second side and the third side of the panel after photographing rotation back and forth along the first direction to correspondingly acquire two second images, wherein the specific panel rotates clockwise by 90 degrees to acquire a second image 20 including a second real mark2; the panel is rotated 90 degrees anticlockwise to obtain a second image 21 comprising the first real marker point mark 1; wherein the second side and the third side are both adjacent to the first side; in the virtual mark point determining step S3, specifically, the method includes: two virtual mark points are determined according to the two second images in one-to-one correspondence, a virtual mark point mark2 'is determined according to the second image 20, and a virtual mark point mark1' is determined according to the second image 20.

In fig. 2, the first direction is a horizontal direction (as shown by a dotted line), and the image acquisition module may move from the initial position on the left side to the position on the right side, return to the initial position, and perform the next left-to-right movement shooting. Since the first image and the second image are both acquired by the image acquisition device, in the step S3, the coordinate system in which the first image and the second image are located is a coordinate system established based on the captured image of the image acquisition device, and the determined virtual mark point is also located on the coordinate system. In addition, in this scenario, the preset relationship between the first connection line and the second connection line is a parallel relationship. Since the mark point mark refers to a cut mark point, the distance between the real mark point mark and the virtual mark point mark' is set manually, that is, is known.

Therefore, in this embodiment, the virtual mark point mark' is determined according to the parallel relationship between the first connection line and the second connection line, the position of the second real mark point, and the distance. In practical application, according to the coordinates of the virtual mark point mark' and the edge line identified for the edge area of the side of the panel, the distances between the real mark point and the virtual mark point of the edge area and the edge line can be calculated, and the cutting precision of the panel can be obtained.

In this embodiment, as shown in fig. 2, the display panel includes a TFT substrate and a CF substrate, one side of the TFT substrate protrudes from the CF substrate, and a first real mark point mark1 and a second real mark point mark2 are formed on the protruding steps, and since electrodes are formed on the protruding steps, it is called a "single electrode panel". In contrast to fig. 2, the panel TFT substrate shown in fig. 3 has two sides protruding with respect to the CF substrate, and electrodes are provided on both of the protruding step surfaces, and thus is called a "double electrode panel".

Specifically, the edge region on the first side of the panel includes: the first real mark1 is an edge area of a second side of the panel adjacent to the first side, and includes: a third mark point mark3; the overlapping edge regions on the first and second sides of the panel further comprise: a second true mark point mark2. In the case of a two-electrode panel, the image acquisition step specifically includes: the image acquisition module reciprocally moves the edge area of the first side of the shooting panel along a first direction to acquire a first image, wherein the first image comprises a first real mark point mark1 and a second real mark point mark2; and reciprocally moving an edge region of a third side of the panel after photographing rotation in the first direction to acquire the second image, wherein the third side is adjacent to the first side, and the second image including the first real mark point mark1 may be acquired along the edge region of the third side of the panel rotated 90 ° counterclockwise. The virtual mark point mark1' corresponding to the first real mark point mark1 can be determined according to the second image.

It should be noted that, the above description is that only one image acquisition module is used to determine the virtual marking point under the condition of the single electrode panel and the double electrode panel, but in practical application, the method is not limited to this, two or more image acquisition modules may be used, the image acquisition modules respectively reciprocate edge regions on different sides of the shooting panel along different directions, for example, the two image acquisition modules reciprocate edge regions on 2 opposite sides of the shooting panel along the horizontal direction, each image acquisition module can acquire a first image and a second image, the coordinate system of which is a coordinate system established based on the shooting images of the corresponding image acquisition modules, the coordinate systems of different image acquisition devices are independent, and the virtual marking points determined respectively are on the coordinate systems corresponding to each other. It can be understood that the plurality of image acquisition devices can be used for simultaneously shooting the edge areas on different sides of the panel while determining the virtual mark points, namely, the edge areas on different sides are simultaneously identified, so that the detection of the cutting precision of the 4 sides of the panel can be rapidly completed relative to the single image acquisition device.

It should be noted that, in the above-described image capturing step, each image capturing module captures the respective first image and the second image, however, in practical application, the image capturing step may further include: the first image acquisition module moves an edge region of the photographing panel along a first direction to acquire a first image, and the second image acquisition module moves the edge region of the photographing panel along a second direction to acquire a second image.

In this case, the coordinate system where the first image and the second image are located is a coordinate system established based on the photographed images of the first image acquisition module and the second image acquisition module together; if the first direction is the horizontal direction on the paper surface and the second direction is the vertical direction on the paper surface, the preset relationship between the first connecting line and the second connecting line is the vertical relationship; then, the virtual mark point mark can be determined at the position of the distance from the second real mark point on the second connecting line perpendicular to the first connecting line according to the perpendicular relation between the first connecting line and the second connecting line, the position of the second real mark point and the distance.

In another embodiment, the first direction and the second direction are parallel; the second image acquisition module and the first image acquisition module may each be simultaneously moved along edge regions of opposite sides of the panel. In the case of a single electrode panel, as shown in fig. 4, only the edge region of the first side of the panel includes: a first real mark point mark1 and a second real mark point mark2; the image acquisition step specifically includes: the first image acquisition module moves an edge area of a first side of the shooting panel along a first direction to acquire a first image; the first image acquisition module and the second image acquisition module respectively move along the edge areas of the second side and the third side of the panel after rotation to acquire two second images; wherein the second side and the third side are adjacent to the first side, the second side and the third side being opposite; the virtual mark point determining step specifically includes: and correspondingly determining two virtual marking points according to the two second images.

More specifically, at a first point in time: the first image acquisition module acquires a first real marking point mark1 and a second real marking point mark2; since the fourth side photographed by the second image acquisition module is electrodeless, the image is not employed; after the photographing of the first side and the fourth side is completed, both the first and second image acquisition modules may return to the initial position, i.e., the left side in fig. 4, while the panel may be 90 ° clockwise; at a second point in time: the first and second image acquisition modules move from left to right while capturing edge regions of the second side and the third side, and the first image acquisition module can acquire a second image including the second real mark2; the second image acquisition module may obtain a second image comprising the first true mark point mark 1. The virtual mark point determining step includes: a virtual marking point mark2 'is determined from the second image comprising the second real marking point mark2 and a virtual marking point mark1' is determined from the second image comprising the first real marking point mark 1.

In practical application, in the case of a single-electrode panel, a third image acquisition module may be further provided, where the second image acquisition module and the third image acquisition module capture edge areas of the second side and the third side of the panel to acquire two second images, and no rotation of the panel is required at this time.

In the case of the dual electrode panel, as shown in fig. 5, the first direction and the second direction are parallel; the edge region on the first side of the panel comprises: the first real mark1 is an edge area of a second side of the panel adjacent to the first side, and includes: a third true mark3; the overlapping edge regions on the first and second sides of the panel further comprise: a second true mark point mark2. In the case of a two-electrode panel, the image acquisition step specifically includes: the first image acquisition module moves along the edge area of the first side of the mobile shooting panel along the first direction and acquires a first image, wherein the first image comprises a first real marking point mark1 and a second real marking point mark2; the second image acquisition module moves along the edge area of the fourth side of the panel and acquires a second image, wherein the fourth side is adjacent to the second side, the second image comprises a third real mark point mark3, and a virtual mark point mark3' corresponding to the third real mark point mark3 can be determined according to the second image. Under the condition of the double-electrode panel, the two image acquisition modules with parallel moving directions are adopted to respectively and independently acquire the first image and the second image, and virtual mark points mark' can be rapidly determined without rotating the panel, so that the inspection efficiency of the panel is improved.

It should be noted that, in the above, each image acquisition module preferably performs image acquisition on the upper and lower sides of the panel side simultaneously during the movement, that is, each image acquisition module includes two camera modules, an upper camera module for capturing an image of the panel side from top to bottom and a lower camera module for capturing an image of the panel side from bottom to top, so that the upper camera module performs determination of virtual mark points of the edge region on the 4 side of the upper substrate and the CF substrate, and the lower camera module performs determination of virtual mark points of the edge region on the 4 side of the lower substrate, thereby enabling determination of virtual mark points of the 8 side edge regions on the upper and lower sides of the panel to be quickly performed.

The invention also provides an embodiment: as shown in fig. 6, a method for detecting cutting accuracy includes the steps of:

s10, determining virtual marking points: the position determining method of the virtual mark point provided by the embodiment of the invention is adopted for determining;

s20, edge line detection: detecting images shot by edge areas on each side of the panel, and detecting edge lines of the panel; specifically, if the CF substrate is located above the TFT substrate, the edge line detected on the side of the panel having the step surface includes both the edge line of the CF substrate and the edge line of the TFT substrate; on the other side without the step surface, the detected edge line is both the edge line of the CF substrate and the edge line of the TFT substrate because the CF substrate and the TFT substrate are flush.

S30, determining cutting precision: the cutting accuracy of each side edge of the panel is calculated according to the virtual marking point, the real marking point and the outer edge line determined by each side edge area of the panel. Specifically, the distance between the virtual mark point and the edge line (the edge line includes the edge line in the length direction and the width direction), and the distance between the real mark point and the edge line, and also the distance between the virtual mark point and the real mark point are calculated. In practical application, the customization can be performed according to the requirements of clients.

Preferably, the cutting accuracy detecting method further includes:

and a display step: the calculated cutting accuracy is displayed. Through this display step, the user can observe the cutting accuracy of the current panel.

In one embodiment, as shown in fig. 7, the present invention further provides a position determining device for a virtual marker point, including:

a receiving module 100, configured to receive a first image of a panel edge area having two first real marking points, and receive a second image of the panel edge area having 1 second real marking points;

the connection line determining module 200 is configured to determine a first connection line of two first real marking points in the first image;

the virtual mark point determining module 300 is configured to determine positions of the virtual mark points in a coordinate system where the first image and the second image are located according to a second real mark point in the second image, the first connection line, a preset relationship between the first connection line and the second connection line, and a preset distance between the second real mark point and the virtual mark point to be determined; the second connecting line is a connecting line between the second real marking point and the virtual marking point.

In this embodiment, preferably, the image capturing module is further configured to move the edge region of the panel in a first direction to obtain the first image of the edge region on one side of the panel and obtain the second image of the edge region on the other side of the panel after rotation.

Further preferably, the edge region of the panel on only the first side comprises: a first true mark point and a second true mark point; the image acquisition module is specifically used for moving and shooting the edge area of the first side of the panel to acquire the first image, and moving and shooting the edge areas of the second side and the third side of the panel after rotation to correspondingly acquire two second images; wherein the second side and the third side are both adjacent to the first side; the virtual mark point determining module is specifically configured to determine two virtual mark points according to the two second images in a one-to-one correspondence manner.

Further preferably, the edge region of the first side of the panel comprises: a first true mark point, an edge region of a second side of the panel adjacent to the first side comprising: a third true mark point; the overlapping edge regions on the first and second sides of the panel further comprise: a second true mark point; the image acquisition module is specifically configured to movably shoot an edge area on a first side of the panel to acquire the first image, and to movably shoot an edge area on a rotated third side of the panel to acquire the second image, where the third side is adjacent to the first side.

In another embodiment, preferably, the number of image acquisition modules is a plurality; the plurality of image acquisition modules respectively move edge regions of different sides of the photographing panel in different directions.

In another class of embodiments, preferably, the method further comprises: a first image acquisition module for moving an edge region of one side of the panel along a first direction to acquire the first image, and a second image acquisition module for moving an edge region of the other side of the panel along a second direction to acquire the second image.

Further preferably, the first image acquisition module is specifically configured to move an edge area of the first side of the panel along a first direction to acquire the first image; the first image acquisition module and the second image acquisition module are specifically used for respectively moving edge areas of the second side and the third side of the panel after shooting rotation along respective moving directions so as to acquire two second images; wherein the second side and the third side are each adjacent to the first side, the second side and the third side being opposite; the virtual mark point determining module is specifically configured to determine two virtual mark points according to the two second images in a one-to-one correspondence manner.

In another embodiment, preferably, the first direction and the second direction are parallel; the edge region of the first side of the panel includes: the first true mark point, the edge area of the second side of the panel adjacent to the first side includes: a third true mark point; the overlapping edge regions on the first and second sides of the panel further comprise: a second true mark point; the first image acquisition module is specifically configured to move an edge region of a first side of the photographing panel along a first direction to acquire the first image, and the second image acquisition module is specifically configured to move an edge region of a fourth side of the photographing panel along a second direction to acquire the second image, wherein the fourth side is adjacent to the second side.

In another embodiment of the present invention, the present invention further provides a cutting accuracy detecting device, including: the virtual marking point determining module comprises the position determining device of the virtual marking point; the edge line detection module is used for detecting images shot by the edge area of each side of the panel and detecting edge lines of the panel; and the cutting precision determining module is used for calculating the cutting precision of each side edge of the panel according to the virtual marking point, the real marking point and the outer edge line which are determined by each side edge area of the panel.

In another embodiment of the present invention, the present invention further provides an electronic device, including the cutting accuracy determining apparatus provided by the present invention.

The present invention also provides a storage medium on which program instructions are stored, the program instructions being operable, when executed, to perform the above-provided method for determining the position of a virtual marker point, or the above-provided method for detecting the accuracy of cutting.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, e.g., the division of the elements is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple elements or components may be combined or integrated into another device, or some features may be omitted or not performed.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in order to streamline the invention and aid in understanding one or more of the various inventive aspects, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof in the description of exemplary embodiments of the invention. However, the method of the present invention should not be construed as reflecting the following intent: i.e., the claimed invention requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

It will be understood by those skilled in the art that all of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or units of any method or apparatus so disclosed, may be combined in any combination, except combinations where the features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

Various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that some or all of the functions of some of the modules in a beverage preparation parameter configuration system or beverage preparation device according to embodiments of the invention may be implemented in practice using a microprocessor or Digital Signal Processor (DSP). The present invention can also be implemented as an apparatus program (e.g., a computer program and a computer program product) for performing a portion or all of the methods described herein. Such a program embodying the present invention may be stored on a computer readable medium, or may have the form of one or more signals. Such signals may be downloaded from an internet website, provided on a carrier signal, or provided in any other form.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order. These words may be interpreted as names.

The foregoing description is merely illustrative of specific embodiments of the present invention and the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the scope of the present invention. The protection scope of the invention is subject to the protection scope of the claims.

As described above, the transmission of high-resolution image data is currently implemented by changing the hardware of the transmitting end and the receiving end, which may cause a waste of resources and a great amount of modification cost.

Claims

1. A method of determining a location of a virtual marker point, the method comprising:

2. The method of claim 1, wherein the method further comprises:

3. The method of claim 2, wherein the edge region of the panel on only the first side comprises: a first true mark point and a second true mark point;

4. The method of claim 2, wherein the edge region of the first side of the panel comprises: a first true mark point, an edge region of a second side of the panel adjacent to the first side comprising: a third true mark point; the overlapping edge regions on the first and second sides of the panel further comprise: a second true mark point;

5. The method as recited in claim 1, further comprising:

6. The method of claim 2, wherein the number of image acquisition modules is a plurality; the plurality of image acquisition modules respectively move and shoot edge areas of different sides of the panel along different directions.

7. The method of claim 6, wherein the first direction and the second direction are parallel; the edge region of the panel on only the first side includes: a first true mark point and a second true mark point;

8. The method of claim 6, wherein the first direction and the second direction are parallel; the edge region of the first side of the panel includes: a first true mark point, an edge region of a second side of the panel adjacent to the first side comprising: a third true mark point; the overlapping edge regions on the first and second sides of the panel further comprise: a second true mark point;

9. The cutting precision detection method is characterized by comprising the following steps of:

virtual mark point determining step: determining by using the position determining method of the virtual marking point according to any one of claims 1 to 8;

10. The method as recited in claim 9, further comprising:

and a display step: displaying the calculated cutting accuracy.

11. A position determining apparatus for virtually marking points, comprising:

12. A cutting accuracy detecting device, characterized by comprising:

a virtual marking point determination module comprising the virtual marking point position determination apparatus of claim 11;

13. An electronic device comprising the cutting accuracy determining apparatus according to claim 12.

14. A storage medium having stored thereon program instructions which, when executed, are adapted to carry out the method of determining the position of a virtual marking point according to any one of claims 1 to 8 or the method of detecting the accuracy of cutting according to any one of claims 8 to 10.