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CN109005400B - Method, system and storage medium for detecting grating fitting offset - Google Patents

Method, system and storage medium for detecting grating fitting offset Download PDF

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Publication number
CN109005400B
CN109005400B CN201810707628.3A CN201810707628A CN109005400B CN 109005400 B CN109005400 B CN 109005400B CN 201810707628 A CN201810707628 A CN 201810707628A CN 109005400 B CN109005400 B CN 109005400B
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display image
current display
detected
abnormal
display area
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CN109005400A (en
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王红磊
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SuperD Co Ltd
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SuperD Co Ltd
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Abstract

The invention relates to a method, a system and a storage medium for detecting grating fitting deviation, wherein the detection method comprises the following steps: acquiring a current display image of a device to be detected; and acquiring an abnormal display area of the current display image, and calculating the horizontal offset or the angle offset of the grating attachment of the device to be detected according to the abnormal display area of the current display image. The embodiment of the invention acquires the current display image of the device to be detected, acquires the abnormal display area in the current display image, and confirms the grating attachment condition of the device to be detected according to the parameters of the abnormal display area.

Description

Method, system and storage medium for detecting grating fitting offset
Technical Field
The present invention relates to the field of gratings, and in particular, to a method, a system, and a storage medium for detecting a grating fitting deviation.
Background
At present, for a grating structure vertically attached (at an angle of 90 °), if the horizontal offset during the attaching process is too large (exceeding a reasonable range, generally 1/10 grating structure length), the left and right images will be offset, and then the 3D image in the center of the screen will have a large degree of crosstalk, which affects the display effect.
The grating structure of slope design is in order to weaken mole line to a certain extent, but in actual technological process, especially the deviation appears easily in the angle of in-process laminating of laminating, in case detect the laminating angle of grating and surpass reasonable scope, reasonable scope is generally 0.1, can cause mole line to appear and then influence the effect that shows like this.
Therefore, it is very necessary to detect whether or not the shift occurs in the grating bonding.
Disclosure of Invention
In a first aspect, an embodiment of the present invention provides a method for detecting a grating overlay offset, which includes:
acquiring a current display image of a device to be detected;
and acquiring an abnormal display area of the current display image, and calculating the horizontal offset or the angle offset of the grating attachment of the device to be detected according to the abnormal display area of the current display image.
Based on the above technical solutions, the embodiments of the present invention may be further improved as follows.
With reference to the first aspect, in a first embodiment of the present invention,
the acquiring of the abnormal display area of the current display image specifically includes:
acquiring an original display image of the device to be detected;
comparing the current display image with the original display image to determine whether the current display image has horizontal offset or angle offset;
when horizontal deviation occurs in grating attachment, comparing the colors of the current display image and the original display image to obtain an abnormal display area of the current display image;
and when the angle deviation occurs in the grating attachment, the display areas of the current display image are the abnormal display areas.
With reference to the first embodiment of the first aspect, in a second embodiment of the invention,
when horizontal deviation occurs in grating attachment, comparing the colors of the current display image and the original display image to obtain an abnormal display area of the current display image, which specifically comprises the following steps:
dividing the current display image into a plurality of display areas with regular shapes;
comparing the color of each display area with the corresponding area in the original display image, and confirming the display area with abnormal display;
and merging all the display areas with abnormal display to serve as abnormal display areas of the current display image.
With reference to the second embodiment of the first aspect, in a third embodiment of the invention,
the calculating the horizontal offset of the grating attachment of the device to be detected according to the abnormal display area specifically comprises:
when the current display image generates horizontal offset, acquiring the area of the abnormal display area;
substituting the area of the abnormal display area into the following calculation formula to calculate the horizontal offset of the grating attachment of the device to be detected:
M=kΔP+n;
wherein M is the area of the abnormal display region, Δ P is the horizontal offset, and k and n are constants.
With reference to the first embodiment of the first aspect, in a fourth embodiment of the present invention,
the calculating the angle offset of the grating attachment of the device to be detected according to the abnormal display area specifically includes:
when the angle of the current display image is deviated, acquiring the number of oblique stripes in the abnormal display area;
substituting the number of the oblique stripes in the abnormal display area into the following calculation formula to calculate the angle offset of the grating attachment of the device to be detected:
S=a0Δθn+a1Δθn-1+a2Δθn-2......+an
wherein S is the number of the oblique stripes in the center of the abnormal display area, Delta theta is the angle offset, a0、a1、a2......anAnd n is a constant.
With reference to the first aspect and the first and fourth embodiments of the first aspect, in a fifth embodiment of the present invention, the detection method further includes:
and when the angle of the current display image is shifted, confirming the direction of the angle shift through the inclination direction of the oblique stripes in the abnormal display area.
With reference to the fifth implementation manner of the first aspect, in a sixth implementation manner of the present invention, the acquiring a current display image of a device to be detected specifically includes:
adjusting the shooting distance for shooting the device to be detected according to the size of the device to be detected so as to obtain a current display image of the detection device;
acquiring a current display image of a device to be detected; acquiring an abnormal display area of the current display image, specifically comprising:
when the camera device for shooting the device to be detected is a monocular camera device, shooting at least two current display images, respectively obtaining abnormal display areas of each current display image, and then taking the average value of the abnormal display areas of all the current display images;
or when the camera shooting device for shooting the device to be detected is a multi-view camera shooting device, shooting a current display image and acquiring an abnormal display area of the current display image.
With reference to the first aspect or any one of the first, second, fourth, and fifth implementation manners of the first aspect, in a seventh implementation manner of the present invention, the acquiring a current display image of a device to be detected specifically includes:
adjusting the shooting distance for shooting the device to be detected according to the size of the device to be detected so as to obtain a current display image of the detection device;
acquiring a current display image of a device to be detected; acquiring an abnormal display area of the current display image, specifically comprising:
when the camera device for shooting the device to be detected is a monocular camera device, shooting at least two current display images, respectively obtaining abnormal display areas of each current display image, and then taking the average value of the abnormal display areas of all the current display images;
or when the camera shooting device for shooting the device to be detected is a multi-view camera shooting device, shooting a current display image and acquiring an abnormal display area of the current display image.
In a second aspect, an embodiment of the present invention further provides a system for detecting a grating fitting offset, including: a device to be inspected to which a grating is attached, an imaging device, a memory, a processor and at least one computer program stored in the memory and configured to be executed by the processor, the computer program being configured for the method of detecting a grating attachment shift as provided in the aforementioned first aspect.
In a third aspect, the present invention further provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, where the computer program is executable by a processor to implement the method for detecting a grating fit offset provided in the foregoing first aspect.
Compared with the prior art, the technical scheme of the invention has the following advantages: the embodiment of the invention acquires the current display image of the device to be detected, acquires the abnormal display area in the current display image, and confirms the grating attachment condition of the device to be detected according to the parameters of the abnormal display area.
Drawings
FIG. 1 is a flowchart of a method for detecting a grating alignment shift according to an embodiment of the present invention;
FIG. 2 is a flowchart of a method for detecting a shift in a grating alignment according to another embodiment of the present invention;
FIG. 3 is a schematic diagram of a currently displayed image provided by yet another embodiment of the present invention;
FIG. 4 is a second diagram illustrating a currently displayed image according to another embodiment of the present invention;
FIG. 5 is a flowchart of a method for detecting a shift in a grating fit according to yet another embodiment of the present invention;
fig. 6 is a flowchart illustrating a method for detecting a grating fit offset according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a method for detecting a grating fitting offset, including:
and S11, acquiring a current display image of the device to be detected.
Specifically, the stereoscopic display device includes a light splitting device and a display panel, and when the light splitting device is in a grating structure, if the grating is attached to the display panel, the 3D image is displayed with a large degree of crosstalk, which causes the 3D image observed by a user to be abnormal. In this step, a current display image of a device to be detected is obtained, where the device to be detected includes, but is not limited to, a stereoscopic display device, and for example, the device to be detected may also be a lens or a slit structure attached with a grating, and the lens includes, but is not limited to, a solid screen or a liquid crystal screen.
For the device to be detected, after the grating is attached to the surface of the device to be detected, if deviation occurs in grating attachment, color change occurs in an image which can be observed by a user, so that color deviation occurs between the observed image and a real displayed image.
For example, in order to facilitate subsequent detection, the device to be detected can display a single color, after the grating attached to the surface of the device to be detected is subjected to light splitting, if crosstalk occurs in grating attachment offset, a color inconsistent with the single color displayed by the device to be detected can occur in a display image observed by a user or a display image shot by the user, and the offset can be confirmed by the inconsistent color in the display image.
In this step, any feasible manner may be adopted to obtain the current display image of the device to be detected, which is not limited in the embodiment of the present invention, for example, the current display image of the device to be detected may be pre-stored, the pre-stored current display image may be read in this step, the current display image may also be input by a user or other personnel, the current display image is obtained by receiving user input, and of course, the current display image may also be obtained by real-time shooting.
In this embodiment, the current display image of the device to be detected is shot through the camera device, it is required to ensure that the size of each current display image is consistent, and the corresponding relation between the area of the current display image and the horizontal offset is conveniently calculated subsequently, for example, in the shooting process, the shooting distance of the device to be detected is shot according to the size adjustment of the device to be detected, so that the size of the shot current display image is consistent, specifically, when the image displayed by the device to be detected is large, the shooting distance is increased, and when the image displayed by the detection device is small, the shooting distance is reduced. When a camera device for shooting a device to be detected is a monocular camera device, shooting at least two current display images for subsequent processing; or when the camera shooting device for shooting the device to be detected is a multi-view camera shooting device, the multi-view camera shooting device simulates the distance between human eyes, and can automatically adjust the shot image after shooting, so that only one current display image needs to be shot.
And S12, acquiring the abnormal display area of the current display image.
Specifically, in the embodiment of the present invention, if there is no abnormal display area in the current display image, or the abnormality of the abnormal display area is within the allowable error range, the display of the device to be detected is normal, and there is no need to acquire other contents in the current display image.
For example, when the camera device for shooting the device to be detected is a monocular camera device in the above steps, at least two current display images are obtained, in this step, after the abnormal display area of each current display image is obtained, the average value of the abnormal display areas of all the current display images is obtained and used as the abnormal display area for subsequent processing, so that the problem of the shooting angle of the monocular camera is avoided, and the judgment error is avoided.
In this embodiment, the manner of obtaining the abnormal display area in the current display image is not limited, and the user may adopt any optional manner, for example, the current display image may be divided into a plurality of areas with regular shapes according to the resolution of the picture, the size of the area may be freely defined by the user, then the color displayed in each area is determined, whether the color displayed in the area is consistent with the color before the raster is attached is determined, whether each area has an abnormal condition is determined, and thus all the areas with abnormal colors are obtained to form the abnormal display area.
In this step, when the horizontal deviation occurs to the grating attached to the device to be detected, the content displayed by the device to be detected may appear in an abnormal area concentrated on the left side or the right side of the currently displayed image, so the abnormal display area may also be obtained according to the boundary between the abnormal area and the normal area, when the angle deviation occurs to the grating attached to the device to be detected, the content displayed by the device to be detected may appear in a diagonal stripe, and at this time, the whole currently displayed image is the abnormal display area.
For example, an original display image of the device to be detected is obtained, where the original display image is an image displayed by the device to be detected to which the grating is not attached mentioned in the above step, and the image displayed by the device to be detected to which the grating is not attached does not cause color change due to crosstalk.
Comparing the current display image with the original display image, and determining whether horizontal offset or angle offset occurs in grating attachment; if the vertically attached grating has horizontal offset, the color which is inconsistent with the color in the original image appears in the current display image due to crosstalk, and whether the horizontal offset occurs in the attachment of the grating is confirmed through color change; if the grating of slope laminating takes place angular migration, not only can not play the effect that reduces mole line appearance, still can cause the appearance of certain mole line and then influence the effect that shows, so when appearing oblique stripe in the present display image, can judge that this grating laminating appears angular migration.
When horizontal deviation occurs in grating attachment, comparing the colors of a current display image and an original display image to obtain an abnormal display area of the current display image; dividing the current display image into a plurality of display areas with regular shapes; comparing the color of each display area with the corresponding area in the original image, and confirming the display area with abnormal display; and merging all the display areas with abnormal display to serve as the abnormal display areas of the current display image.
When the angle deviation occurs in the grating attachment, the display areas of the current display image are all abnormal display areas; when the grating is attached and subjected to angle deviation, oblique stripes, namely Moire stripes, appear in the whole display image of the device to be detected, so that the whole display image is an abnormal display area.
And S13, calculating the horizontal offset or the angle offset of the grating attachment of the device to be detected according to the abnormal display area of the current display image.
According to the embodiment of the invention, the current display image of the device to be detected is obtained, the abnormal display area is obtained from the current display image, and the horizontal offset or the angle offset of the grating attachment is obtained through the calculation of the abnormal display area.
When the obliquely attached grating generates angular deviation, not only the angular deviation amount needs to be calculated, but also the direction of the angular deviation needs to be determined,
for example, the direction of the angular deviation is determined by the inclination direction of the slanted stripes of the abnormal display area, and since the number of the slanted stripes of the abnormal display area is related to the angle of the grating bonding deviation, but the angle of the grating bonding deviation has two directions, the direction of the grating bonding angular deviation can be obtained according to the inclination angle of the slanted stripes.
Optionally, as shown in fig. 2, in this embodiment, in the step S13, the method for calculating the horizontal offset or the angular offset of the raster attachment of the device to be detected according to the abnormal display area of the current display image includes:
s21, when the current display image is horizontally shifted, the area of the abnormal display region is acquired.
As shown in fig. 3, in the display image when the current display image is horizontally shifted, the area of each display region in which display is abnormal is calculated by obtaining the display region in which display is abnormal in the above steps, and the area of the abnormal display region in this step is obtained by accumulating.
S22, substituting the area of the abnormal display area into the following calculation formula to calculate the horizontal offset of the grating attachment of the device to be detected:
M=kΔP+n;
wherein M is the area of the abnormal display region, Δ P is the horizontal offset, and k and n are constants.
The calculation formula for calculating the horizontal offset in this step can be obtained by summarizing big data to summarize k and n in the formula, and the technology used in this step may be any one of a convolutional neural network, a vector machine and a linear regression equation, or may be other big data processing modes, and details are not repeated here.
In this step, it can be known from the process of generating an abnormal display region due to the bonding offset of the grating, when any slit of the grating is bonded to the theoretical position, the horizontal offset does not occur in the current display image, because the grating has a large number of parallel slits with equal width and equal spacing, when the grating is bonded to the theoretical position, the maximum value of the horizontal offset of the grating bonding is half of the spacing between two adjacent slits of the grating, so in this embodiment, the horizontal offset refers to the theoretical bonding position and the spacing between the slit closest to the theoretical bonding position.
For example, as shown in fig. 5, the calculation formula of the horizontal offset amount can be obtained by:
and S31, acquiring the horizontal offset display image in the history.
And S32, acquiring the area of the historical abnormal display area of each horizontal shift display image and the corresponding historical horizontal shift amount.
Specifically, after the corresponding horizontal offset is calculated according to the area of the abnormal display region of the current display image each time, the area and the horizontal offset of the current display image and the corresponding abnormal display region are stored, and the related content stored in the history is acquired in this step for subsequent processing.
And S33, constructing a calculation formula of the horizontal offset according to the areas of all the historical abnormal display areas and the corresponding historical horizontal offsets.
Specifically, in this step, the calculation formula is constructed according to the area of the history abnormal display area and the corresponding history horizontal offset acquired in the above step, a model conforming to the change rule of the area of the abnormal display area and the corresponding horizontal offset is acquired through a large amount of history data training in this step, and each calculation is performed through all data in past history records, so that the accuracy of the final result can be greatly improved.
When the number of the horizontal shift display images in the history is insufficient, the calculation formula of the horizontal shift amount can be derived by the above steps by manually measuring and acquiring the relevant data by the user instead of the horizontal shift images in the history.
And S23, acquiring the number of the oblique stripes in the abnormal display area when the angle of the current display image is deviated.
After confirming that the raster attachment is the angular offset according to the above steps, the display image when the angle offset occurs in the current display image as shown in fig. 4 may obtain the number of the oblique stripes in the abnormal display area in any manner, such as counting and inputting by a user, or may be obtained by image recognition, which is not limited herein.
S24, substituting the number of the oblique stripes in the abnormal display area into the following calculation formula to calculate the angle offset of the grating attachment of the device to be detected:
S=a0Δθn+a1Δθn-1+a2Δθn-2......+an
wherein S is the number of the oblique stripes in the center of the abnormal display area, Delta theta is the angle offset, a0、a1、a2......anAnd n is a constant.
The calculation formula for calculating the angle offset in the step can be obtained by summarizing big data, and a in the formula is summarized0、a1、a2......anAnd n, the technology used in the step can be any one of a convolutional neural network, a vector machine and a linear regression equation, and can also be other large data processing modes, and details are not repeated here.
In this step, the direction of the angular deviation needs to be determined by the tilt direction of the oblique stripes in the abnormal display area.
Because the quantity of the oblique stripes of the abnormal display area is related to the angle of the grating attachment offset, but the angle of the grating attachment offset has two directions, the direction of the grating attachment angle offset can be obtained at the moment according to the inclination angle of the oblique stripes, specifically, the inclination angle of the oblique stripes in the abnormal display area is the actual inclination angle of the grating attachment, the theoretical inclination angle of the grating attachment is known, and the direction of the grating attachment angle offset can be obtained by comparing the inclination angle of the oblique stripes with the theoretical inclination angle of the grating attachment.
For example, as shown in fig. 6, the calculation formula of the angular offset amount can be obtained by:
and S41, acquiring the angle offset display image in the history.
And S42, acquiring the number of the oblique stripes and the historical angle offset of the historical abnormal display area of each angle offset display image.
Specifically, after the corresponding angle offset is obtained by calculation according to the number of the diagonal stripes of the abnormal display area of the current display image each time, the number of the diagonal stripes and the angle offset of the current display image and the corresponding abnormal display area are stored, and the related content stored in the history record is acquired in the step for subsequent processing.
And S43, constructing a calculation formula for calculating the angle offset according to the number of the oblique stripes of all the historical abnormal display areas and the corresponding historical angle offset.
Specifically, in this step, a corresponding angle offset model is constructed according to the number of the oblique stripes of the history abnormal display area and the corresponding historical angle offset acquired in the above step, in this step, a calculation formula which conforms to the number of the oblique stripes of the abnormal display area and the change rule of the corresponding angle offset is acquired through training of a large amount of historical data, and each calculation is performed through all data in past historical records, so that the accuracy of the final result can be greatly improved.
When the number of the angle deviation display images in the history is insufficient, the calculation formula of the angle deviation amount can be derived through the steps by manually measuring and acquiring the relevant data by the user instead of the angle deviation images in the history.
The embodiment of the invention also provides a system for detecting the attaching deviation of the grating, which comprises the following components: the device to be detected, which is attached with the grating, the camera device, the memory, the processor and at least one computer program stored in the memory and configured to be executed by the processor, wherein the computer program is configured to implement the method for detecting the grating attachment offset provided by any of the above embodiments.
And the camera device is used for acquiring the current display image of the device to be detected.
And the processor is used for calling the stored computer program of the memory, realizing the acquisition of the abnormal display area of the current display image and calculating the horizontal offset or the angle offset of the grating fit of the device to be detected according to the abnormal display area.
The storage medium for recording the program code of the software program that can realize the functions of the above-described embodiments is provided to the system or apparatus in the above-described embodiments, and the program code stored in the storage medium is read and executed by the computer (or CPU or MPU) of the system or apparatus.
In this case, the program code itself read out from the storage medium performs the functions of the above-described embodiments, and the storage medium storing the program code constitutes an embodiment of the present invention.
As a storage medium for supplying the program code, for example, a flexible disk, hard disk, optical disk, magneto-optical disk, CD-ROM, CD-R, magnetic tape, nonvolatile memory card, ROM, and the like can be used.
The functions of the above-described embodiments may be realized not only by executing the readout program code by the computer, but also by some or all of actual processing operations executed by an OS (operating system) running on the computer according to instructions of the program code.
Further, the embodiments of the present invention also include a case where after the program code read out from the storage medium is written into a function expansion card inserted into the computer or into a memory provided in a function expansion unit connected to the computer, a CPU or the like included in the function expansion card or the function expansion unit performs a part of or the whole of the processing in accordance with the command of the program code, thereby realizing the functions of the above-described embodiments.
The embodiment of the present invention further provides a computer-readable storage medium, in which a computer program is stored, where the computer program can be executed by a processor to implement the method for detecting a grating fitting offset provided in any of the above embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A method for detecting a grating fit offset, comprising:
acquiring a current display image of a device to be detected;
acquiring an abnormal display area of the current display image;
calculating horizontal offset or angle offset of grating attachment of the device to be detected according to the abnormal display area, wherein the horizontal offset is calculated according to the area of the abnormal display area and a first calculation formula M ═ k Δ P + n, wherein M is the area of the abnormal display area, Δ P is the horizontal offset, and k and n are constants; the angle offset is calculated according to the number of oblique stripes in the abnormal display area and a second calculation formula S ═ a0Δθn+a1Δθn-1+a2Δθn-2......+anCalculating, wherein S is the number of oblique stripes in the abnormal display area, Delta theta is the angle offset, and a0、a1、a2......anAnd n is a constant.
2. The method of claim 1, wherein the step of detecting the shift in the alignment of the gratings comprises,
the acquiring of the abnormal display area of the current display image specifically includes:
acquiring an original display image of the device to be detected;
comparing the current display image with the original display image, and determining whether horizontal offset or angle offset occurs in grating attachment;
when horizontal deviation occurs in grating attachment, comparing the colors of the current display image and the original display image to obtain an abnormal display area of the current display image;
and when the angle deviation occurs in the grating attachment, the display areas of the current display image are the abnormal display areas.
3. The method of claim 2, wherein the step of detecting the shift in the alignment of the gratings is performed by a computer,
when horizontal deviation occurs in grating attachment, comparing the colors of the current display image and the original display image to obtain an abnormal display area of the current display image, and specifically comprising the following steps:
dividing the current display image into a plurality of display areas with regular shapes;
comparing the color of each display area with the corresponding area in the original display image, and confirming the display area with abnormal display;
and merging all the display areas with abnormal display to serve as abnormal display areas of the current display image.
4. The method of claim 3, wherein the step of detecting the shift in the alignment of the gratings is performed by a computer,
the calculating the horizontal offset of the grating attachment of the device to be detected according to the abnormal display area specifically comprises:
when the current display image generates horizontal offset, acquiring the area of the abnormal display area;
and substituting the area of the abnormal display area into the first calculation formula to calculate the horizontal offset of the grating attachment of the device to be detected.
5. The method of claim 2, wherein the step of detecting the shift in the alignment of the gratings is performed by a computer,
the calculating the angle offset of the grating attachment of the device to be detected according to the abnormal display area specifically includes:
when the angle of the current display image is deviated, acquiring the number of oblique stripes in the abnormal display area;
and substituting the number of the oblique stripes in the abnormal display area into the second calculation formula to calculate the angle offset of the grating attachment of the device to be detected.
6. The method of claim 1, 2 or 5, further comprising:
the direction of the angular deviation is confirmed by the inclination direction of the diagonal stripes in the abnormal display area.
7. The method according to claim 6, wherein the acquiring a current display image of the device to be detected specifically includes:
adjusting the shooting distance for shooting the device to be detected according to the size of the device to be detected so as to obtain a current display image of the device to be detected;
the acquiring of the abnormal display area of the current display image specifically includes:
when the camera device for shooting the device to be detected is a monocular camera device, shooting at least two current display images, respectively obtaining abnormal display areas of each current display image, and then taking the average value of the abnormal display areas of all the current display images;
or when the camera shooting device for shooting the device to be detected is a multi-view camera shooting device, shooting a current display image and acquiring an abnormal display area of the current display image.
8. The method for detecting the fit offset of the grating according to any one of claims 1 to 5, wherein the acquiring a current display image of the device to be detected specifically includes:
adjusting the shooting distance for shooting the device to be detected according to the size of the device to be detected so as to obtain a current display image of the device to be detected;
the acquiring of the abnormal display area of the current display image specifically includes:
when the camera device for shooting the device to be detected is a monocular camera device, shooting at least two current display images, respectively obtaining abnormal display areas of each current display image, and then taking the average value of the abnormal display areas of all the current display images;
or when the camera shooting device for shooting the device to be detected is a multi-view camera shooting device, shooting a current display image and acquiring an abnormal display area of the current display image.
9. A system for detecting a shift in a grating fit, comprising: an apparatus to be inspected to which a grating is attached, an imaging apparatus, a memory, a processor and at least one computer program stored in the memory and configured to be executed by the processor, the computer program being configured to perform the method of detecting a grating attachment shift according to any one of claims 1 to 8.
10. A computer-readable storage medium, in which a computer program is stored, the computer program being executable by a processor to implement the method for detecting a grating fit shift according to any one of claims 1 to 8.
CN201810707628.3A 2018-07-02 2018-07-02 Method, system and storage medium for detecting grating fitting offset Expired - Fee Related CN109005400B (en)

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