CN117232787A - Camera positioning device and method for AR product visual detection - Google Patents
Camera positioning device and method for AR product visual detection Download PDFInfo
- Publication number
- CN117232787A CN117232787A CN202311173802.8A CN202311173802A CN117232787A CN 117232787 A CN117232787 A CN 117232787A CN 202311173802 A CN202311173802 A CN 202311173802A CN 117232787 A CN117232787 A CN 117232787A
- Authority
- CN
- China
- Prior art keywords
- camera
- laser
- detection
- detection camera
- auxiliary
- 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
- 238000001514 detection method Methods 0.000 title claims abstract description 154
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000000007 visual effect Effects 0.000 title abstract description 20
- 238000012937 correction Methods 0.000 claims abstract description 17
- 238000011179 visual inspection Methods 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
The application relates to a camera positioning device and a method for AR product visual detection, comprising the following steps: the device comprises a jig carrier, wherein an auxiliary camera and a detection camera are arranged at the top of the jig carrier, and the positions of the auxiliary camera and the detection camera are relatively fixed and are used for detecting image information of AR products; the correction device comprises a laser vertically positioned at the top of the jig carrying platform and a reflecting mirror arranged on the auxiliary camera and the detection camera; when the light emitted by the light outlet of the laser returns to the light outlet of the laser through the reflecting mirror, the auxiliary camera and the detection camera are in a vertical state with the jig carrier. The correction device of the application utilizes the laser vertically positioned at the top of the jig carrier and the reflector arranged on the auxiliary camera and the detection camera to detect the verticality of the auxiliary camera and the detection camera. The device can realize real-time alignment of the detection camera in field operation, is simple and portable in operation and is low in cost.
Description
Technical Field
The application relates to the technical field of AR product visual detection, in particular to a camera positioning device and method for AR product visual detection.
Background
The AR/VR industry is an emerging industry, where all AR/VR products are distinguished from conventional display modules, such as: the human eyes watch the television and the mobile phone screen, and the seen objects are the objects which exist in practice; whereas the human eye sees a virtual image of the display through the AR/VR product, it is the actual absence of the object. Therefore, the AR/VR product breaks through the limitation of the space of the conventional display module, and people experience the effect of being in the scene.
The visual inspection of AR/VR products requires the capture of a virtual image, so the aperture (virtual position) of the inspection camera and the aperture of the product need to be aligned to capture the complete image of the interior of the product. The method can simply and low-cost realize the alignment of the detection camera diaphragm and the product diaphragm, realize the alignment of the camera, and realize the real-time alignment in the field operation.
In the industry, the visual detection technology for AR products is not perfect, and an alignment mode of a photoelectric auto-collimator and prism combination is found through data. The method needs to use an autocollimator with high cost, occupies extremely large space and is not easy to maintain. Real-time alignment in field operation cannot be achieved, namely, errors occur in the placement position of the AR product, and the problem of insufficient shooting of a camera is likely to occur.
Disclosure of Invention
The embodiment of the application provides a camera positioning device and a camera positioning method for visual detection of AR products, which are used for solving the problems that a photoelectric auto-collimator used in the related art is high in cost, large in occupied space, difficult to maintain and incapable of achieving real-time alignment in field operation.
A first aspect of an embodiment of the present application provides a camera positioning device for visual inspection of AR products, including:
the device comprises a jig carrier, wherein an auxiliary camera and a detection camera are arranged at the top of the jig carrier, and the positions of the auxiliary camera and the detection camera are relatively fixed and are used for detecting image information of AR products;
the correction device comprises a laser for measuring perpendicularity of the auxiliary camera and the detection camera relative to the jig carrier and a reflecting mirror, and the reflecting mirror is used for reflecting emitted light rays emitted by the laser.
In some embodiments: the auxiliary camera and the detection camera are fixed above the jig carrier through a mounting bracket, and an angle adjusting mechanism for respectively adjusting the mounting angles of the auxiliary camera and the detection camera is arranged on the mounting bracket.
In some embodiments: the mounting bracket is provided with a height adjusting mechanism for adjusting the position height of the detection camera, and the height adjusting mechanism adjusts the focusing height of the detection camera by adjusting the relative height between the detection camera and the AR product.
In some embodiments: the laser is fixed on the jig carrier, the emitted light rays emitted by the laser are perpendicular to the jig carrier, and the two reflectors are arranged and respectively installed on the lenses of the auxiliary camera and the detection camera;
the bottom of the jig carrier is provided with a driving module for driving the jig carrier and the laser to move along the X-axis direction and the Y-axis direction, so that the laser moves to the position right below the reflecting mirror.
In some embodiments: the two lasers are respectively fixed on the auxiliary camera and the detection camera, the emitted light rays emitted by the lasers are parallel to the axes of the auxiliary camera and the detection camera, and the reflecting mirror is fixed on the jig carrier and is parallel to the top surface of the jig carrier;
the bottom of tool carrier is equipped with the drive module that drives tool carrier and speculum follow X axis direction and Y axis direction and remove, drive module is in order to with two under the laser instrument is removed to the speculum.
In some embodiments: the auxiliary camera is connected with an image processor, and the image processor is used for processing the image information shot by the auxiliary camera and calibrating the position of the characteristic point in the image information;
the driving module is connected with a controller, and the controller controls the driving module to move the AR product to the position right below the detection camera according to the position information of the characteristic points calibrated by the image processor and the position information of the detection camera.
In some embodiments: the laser comprises a laser pen and a laser pen mounting seat for fixing the laser pen, wherein an adjusting seat for adjusting the light emitting angle of the laser pen is arranged on the laser pen mounting seat, a laser target plate is further connected onto the laser pen mounting seat, and a light emitting opening of the laser pen is positioned at the central position of the laser target plate.
A second aspect of the present application provides a camera positioning method for visual inspection of AR products, where the method uses the camera positioning device for visual inspection of AR products according to any one of the above embodiments, and the method includes:
an auxiliary camera and a detection camera are respectively arranged at the top of the jig carrier, and the positions of the auxiliary camera and the detection camera are relatively fixed;
installing a correction device for measuring the perpendicularity of the auxiliary camera and the detection camera relative to the jig carrier;
opening a laser of the correction device to enable light rays emitted by the laser to irradiate on the reflecting mirror;
observing and judging whether the light emitted by the light outlet of the laser returns to the light outlet of the laser by the reflecting mirror;
if yes, judging that the auxiliary camera, the detection camera and the jig carrier are in a vertical state;
if not, judging that the auxiliary camera, the detection camera and the jig carrier are in an inclined state, and adjusting the installation angles of the auxiliary camera and the detection camera until the installation angles are vertical to the jig carrier.
In some embodiments: the method further comprises the steps of:
driving the AR product to move along the X-axis direction and the Y-axis direction by using the driving module so as to move the AR product to the position right below the auxiliary camera;
the auxiliary camera acquires image information of the AR product and sends the image information to the image processor;
the image processor processes the image information shot by the auxiliary camera and calibrates the positions of a plurality of characteristic points in the image information;
and the image processor judges whether the AR product has position deviation in the X and Y directions according to the plurality of characteristic points, and if so, the controller controls the driving module to drive the AR product to correct the position.
In some embodiments: the method further comprises the steps of:
the controller controls the driving module to move the AR product to the position right below the detection camera according to the position information of the characteristic points calibrated by the image processor and the position information of the detection camera;
the driving module fine-adjusts the X, Y direction of the AR product, so that the characteristic points of the AR product are sequentially positioned at the center of the detection camera;
after the detection camera descends to a set height, shooting all the characteristic points of the AR product in sequence, and obtaining image information of all the characteristic points of the AR product.
The technical scheme provided by the application has the beneficial effects that:
the embodiment of the application provides a camera positioning device and a camera positioning method for AR product visual detection, wherein the camera positioning device for AR product visual detection is provided with a jig carrier, an auxiliary camera and a detection camera are arranged at the top of the jig carrier, and the positions of the auxiliary camera and the detection camera are relatively fixed and are used for detecting image information of an AR product; the correction device comprises a laser for measuring the perpendicularity of the auxiliary camera and the detection camera relative to the jig carrier and a reflecting mirror, wherein the reflecting mirror is used for reflecting emitted light rays emitted by the laser; when the light emitted by the light outlet of the laser returns to the light outlet of the laser through the reflecting mirror, the auxiliary camera and the detection camera are in a vertical state with the jig carrier.
Therefore, the camera positioning device for AR product vision detection of the application utilizes the correction device to correct the position relationship between the auxiliary camera and the detection camera and the jig carrier. Specifically, the correction device detects the perpendicularity of the auxiliary camera and the detection camera by using a laser vertically positioned at the top of the jig carrier and a reflecting mirror installed on the auxiliary camera and the detection camera. When the light emitted by the light outlet of the laser returns to the light outlet of the laser through the reflecting mirror, the auxiliary camera and the detection camera are in a vertical state with the jig carrier. The device can realize real-time alignment of the detection camera in field operation, is simple and portable in operation and is low in cost.
The auxiliary camera and the detection camera of the camera positioning device for AR product visual detection are fixed above the jig carrier through the mounting bracket, and the mounting bracket is provided with the angle adjusting mechanism for adjusting the shooting angles of the auxiliary camera and the detection camera. The installing support is used for being fixed in the top of tool microscope carrier with auxiliary camera and detection camera, and angle adjustment mechanism is used for the supplementary camera of multi-angle regulation and detects the camera shooting angle to the axis of auxiliary camera and detection camera is in the vertical state with the tool microscope carrier, and then makes auxiliary camera and detection camera when detecting AR product vision, improves AR product detection efficiency and detection precision.
The laser of the camera positioning device for AR product visual detection is fixed on the jig carrier, the emitted light rays emitted by the laser are perpendicular to the jig carrier, and two reflectors are arranged and respectively installed on lenses of the auxiliary camera and the detection camera; the bottom of the jig carrier is provided with a driving module for driving the jig carrier and the laser to move along the X-axis direction and the Y-axis direction so that the laser moves to the position right below the reflecting mirror. The lenses of the auxiliary camera and the detection camera face downwards, and the reflecting mirror is fixed on the lenses of the auxiliary camera and the detection camera. When the driving module drives the jig carrier and the laser to move, the laser automatically moves to the position right below the reflecting mirror, and the perpendicularity detection of the auxiliary camera and the detection camera is rapidly realized.
The two lasers of the camera positioning device for AR product visual detection are respectively fixed on the auxiliary camera and the detection camera, the emitted light rays emitted by the lasers are parallel to the axes of the auxiliary camera and the detection camera, and the reflecting mirror is fixed on the jig carrier and is parallel to the top surface of the jig carrier; the bottom of tool carrier is equipped with the drive module that drive tool carrier and speculum removed along X axis direction and Y axis direction, and drive module is in order to remove the speculum under two lasers. When the driving module drives the jig carrier and the reflecting mirror to move, the reflecting mirror automatically moves to the position right below the two lasers, and the perpendicularity detection of the auxiliary camera and the detection camera is rapidly realized.
The auxiliary camera of the camera positioning device for AR product visual detection is connected with an image processor, and the image processor is used for processing image information shot by the auxiliary camera and calibrating the position of a characteristic point in the image information; the driving module is connected with a controller, and the controller controls the driving module to move the AR product to the position right below the detection camera according to the position information of the characteristic points calibrated by the image processor and the position information of the detection camera. The image processor obtains the position of the feature point of the AR product, performs calibration through an algorithm, identifies the coordinate information of each feature point, and then the driving module sequentially and accurately moves each feature point to the position right below the detection camera according to the coordinate information, so that the accurate positioning of the shooting position of each feature point is realized.
The laser of the camera positioning device for AR product visual inspection comprises a laser pen and a laser pen mounting seat for fixing the laser pen, wherein the laser pen mounting seat is provided with an adjusting seat for adjusting the light emitting angle of the laser pen, the laser pen mounting seat is also connected with a laser target plate, and a light emitting opening of the laser pen is positioned at the center of the laser target plate. The laser pen is used for transmitting light to the reflecting mirror, the laser pen mount pad is used for fixing the laser pen on the tool carrier, and the regulation seat on the laser pen mount pad is used for adjusting the laser pen angle of light to make the light perpendicular to tool carrier that the laser pen sent, the laser target board is used for receiving the light by the reflecting mirror reflection, and shows the distance of reflection light apart from laser pen exit end, and then judges auxiliary camera and detects the straightness that hangs down of camera.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a camera positioning device according to an embodiment of the present application;
FIG. 2 is a front view of the structure of the calibration device according to the embodiment of the present application;
FIG. 3 is a perspective view showing the structure of a calibration device according to an embodiment of the present application;
FIG. 4 is a block diagram of a camera positioning apparatus according to an embodiment of the present application;
FIG. 5 is an image information captured by an auxiliary camera according to an embodiment of the present application;
fig. 6 is image information captured by a detection camera according to an embodiment of the present application.
Reference numerals:
1. a jig carrier; 2. an auxiliary camera; 3. detecting a camera; 4. a laser; 5. a driving module; 6. a reflecting mirror; 7. a controller; 8. an image processor; 41. a laser pen; 42. a laser pen mounting seat; 43. an adjusting seat; 44. a laser target plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The embodiment of the application provides a camera positioning device and a camera positioning method for visual detection of AR products, which can solve the problems that a photoelectric auto-collimator used in the related art is high in cost, extremely large in occupied space, difficult to maintain and incapable of achieving real-time alignment in field operation.
Referring to fig. 1, a first aspect of an embodiment of the present application provides a camera positioning apparatus for visual detection of AR products, including:
the jig carrier 1, the top of this jig carrier 1 is equipped with auxiliary camera 2 and detects camera 3, and auxiliary camera 2 and the position of detecting camera 3 are fixed relatively and are used for detecting the image information that is located the AR product at jig carrier 1 top. The auxiliary camera 2 is used for shooting the flatness of the AR product placed on site and the relative position of the projection lamp beads of the AR product every time, the positions of the auxiliary camera 2 and the detection camera 3 are relatively fixed, and accurate positioning is provided for shooting the projection lamp beads of the AR product by the detection camera 3.
A correction device including a laser 4 and a mirror 6 for measuring perpendicularity of the auxiliary camera 2 and the detection camera 3 with respect to the jig stage 1, the mirror 6 being for reflecting emitted light emitted by the laser 4; when the light emitted from the light outlet of the laser 4 returns to the light outlet of the laser 4 through the reflecting mirror 6, it can be judged that the auxiliary camera 2 and the detecting camera 3 are in a vertical state with the jig carrier 1, otherwise, the perpendicularity of the auxiliary camera 2 and the detecting camera 3 relative to the jig carrier 1 needs to be adjusted.
The camera positioning device for visual inspection of AR products of the embodiment of the present application corrects the positional relationship between the auxiliary camera 2 and the inspection camera 3 and the jig stage 1 using the correction device. Specifically, the correction device detects the perpendicularity of the auxiliary camera 2 and the detection camera 3 by using a laser 4 with emitted light vertically positioned on the top of the jig stage 1 and a reflecting mirror 6 mounted on the auxiliary camera 2 and the detection camera 3. When the light emitted by the light outlet of the laser 4 returns to the light outlet of the laser through the reflecting mirror 6, the auxiliary camera 2 and the detection camera 3 are in a vertical state with the jig carrier 1. The device can realize real-time alignment of the detection camera in field operation, is simple and portable in operation and is low in cost.
In some alternative embodiments: referring to fig. 1, an embodiment of the present application provides a camera positioning device for visual inspection of AR products, in which an auxiliary camera 2 and a detection camera 3 are fixed above a jig stage 1 through a mounting bracket. And angle adjusting mechanisms for adjusting shooting angles of the auxiliary camera 2 and the detection camera 3 are arranged between the auxiliary camera 2 and the detection camera 3 and between the auxiliary camera and the mounting bracket. The mounting bracket is provided with a height adjusting mechanism for adjusting the position height of the detection camera 3, and the height adjusting mechanism adjusts the focusing height of the detection camera 3 by adjusting the relative height between the detection camera 3 and the AR product.
The installing support is used for being fixed in the top of tool microscope carrier 1 with auxiliary camera 2 and detection camera 3, and angle adjustment mechanism is used for the shooting angle of auxiliary camera 2 and detection camera 3 of multi-angle regulation to the axis and the tool microscope carrier 1 of auxiliary camera 2 and detection camera 3 are in the vertical state, and then make auxiliary camera 2 and detection camera 3 when detecting AR product vision, improve AR product detection efficiency and detection precision. The height adjusting mechanism is used for driving the detection camera 3 to move up and down along the Z-axis direction, so that the relative height between the detection camera 3 and the AR product is adjusted, and further, the image information of the AR product is acquired at the optimal focal length.
In some alternative embodiments: referring to fig. 1, an embodiment of the present application provides a camera positioning device for visual inspection of AR products, in which a laser 4 is fixed on a jig carrier 1, and an emission light emitted from the laser 4 is perpendicular to the jig carrier 1, and two mirrors 6 are provided and mounted on lenses of an auxiliary camera 2 and an inspection camera 3, respectively. The bottom of the jig carrier 1 is provided with a driving module 5 for driving the jig carrier 1 and the laser 4 to move along the X-axis direction and the Y-axis direction, so that the laser 4 moves to the position right below the reflecting mirror 6. The lenses of the auxiliary camera 2 and the detection camera 3 face downward, and the reflecting mirror 6 is fixed to the lenses of the auxiliary camera 2 and the detection camera 3. When the driving module 5 drives the jig carrier 1 and the laser 4 to move, the laser 4 automatically moves to the position right below the reflecting mirror 6, and the perpendicularity detection of the auxiliary camera 2 and the detection camera 3 is rapidly realized.
In some alternative embodiments: referring to fig. 1, an embodiment of the present application provides a camera positioning device for visual inspection of AR products, where two lasers 4 are provided, the two lasers 4 are respectively fixed on an auxiliary camera 2 and an inspection camera 3, the emitted light emitted by the lasers 4 is parallel to the axes of the auxiliary camera 2 and the inspection camera 3, and a reflector 6 is fixed on a jig carrier 1 and parallel to the top surface of the jig carrier 1. The bottom of the jig carrier 1 is provided with a driving module 5 for driving the jig carrier 1 and the reflecting mirror 6 to move along the X-axis direction and the Y-axis direction, and the driving module 5 is used for driving the reflecting mirror 6 to move to the position right below the two lasers 4. When the driving module 5 drives the jig carrier 1 and the reflecting mirror 6 to move, the reflecting mirror 6 automatically moves to the position right below the two lasers 4, and the perpendicularity detection of the auxiliary camera 2 and the detection camera 3 is rapidly realized.
In some alternative embodiments: referring to fig. 1, an embodiment of the present application provides a camera positioning device for visual inspection of AR products, wherein a driving module 5 for driving the AR products to move along the X-axis direction and the Y-axis direction is disposed at the bottom of a jig carrier 1 of the camera positioning device, and the driving module 5 is configured to move the AR products directly under an inspection camera 3 or an auxiliary camera 2. The driving module 5 is used for automatically moving the AR product to the position right below the detection camera 3 or the auxiliary camera 2, accurately adjusting the relative position relation between the AR product and the detection camera 3 or the auxiliary camera 2, accurately positioning the position of the feature point required to be shot of the AR product, and facilitating the detection camera 3 or the auxiliary camera 2 to accurately shoot and acquire the image information of the AR product.
In some alternative embodiments: referring to fig. 1 to 6, an embodiment of the present application provides a camera positioning device for visual inspection of AR products, in which an auxiliary camera 2 is connected with an image processor 8, and the image processor 8 is configured to process image information captured by the auxiliary camera 2 and calibrate a feature point position in the image information. The driving module 5 is connected with a controller 7, and the controller 7 controls the driving module 5 to move the AR product to the position right below the detection camera 3 according to the position information of the characteristic points calibrated by the image processor and the position information of the detection camera 3. The image processor 8 obtains the position of the feature point of the AR product, performs calibration through an algorithm, identifies the coordinate information of each feature point, and then the driving module 5 sequentially and accurately moves each feature point to the position right below the detection camera 3 according to the coordinate information, so that the accurate positioning of the shooting position of each feature point is realized.
In some alternative embodiments: referring to fig. 1 to 3, the embodiment of the application provides a camera positioning device for visual detection of AR products, where a laser 4 of the camera positioning device includes a laser pen 41 and a laser pen mounting seat 42 for fixing the laser pen 41, an adjusting seat 43 for adjusting the light emitting angle of the laser pen 41 is disposed on the laser pen mounting seat 42, a laser target plate 44 is further connected to the laser pen mounting seat 42, and a light emitting opening of the laser pen 41 is located at the center of the laser target plate 44. The laser pen 41 is used for transmitting light to the reflector 6, the laser pen mount 42 is used for fixing the laser pen 41 on the jig mount 1, the adjusting seat 43 on the laser pen mount 42 is used for adjusting the light emitting angle of the laser pen 41 so that the light emitted by the laser pen 41 is perpendicular to the jig mount 1, the laser target 44 is used for receiving the light reflected by the reflector 6 and displaying the distance between the reflected light and the outlet end of the laser pen 41, and then the perpendicularity of the auxiliary camera 2 and the detection camera 3 is judged.
Referring to fig. 1 to 6, a second aspect of the embodiment of the present application provides a camera positioning method for visual inspection of AR products, using the camera positioning apparatus for visual inspection of AR products according to any of the above embodiments, the method comprising the steps of:
step 1, fixing a laser 4 on the top of a jig carrier 1, wherein light rays emitted by the laser 4 are perpendicular to the jig carrier 1, and installing a reflecting mirror 6 on lenses of an auxiliary camera 2 and a detection camera 3.
Step 2, turning on the laser 4, and driving the jig carrier 1 by the driving module 5 along the X-axis direction and the Y-axis direction, so that the laser 4 moves to the position right below the reflecting mirror 6.
Step 3, human eyes observe and judge whether the light emitted by the light outlet of the laser 4 returns to the light outlet of the laser 4 by the reflector 6;
step 4, if yes, judging that the auxiliary camera 2, the detection camera 3 and the jig carrier 1 are in a vertical state;
and 5, if not, judging that the auxiliary camera 2, the detection camera 3 and the jig carrier are in an inclined state, and adjusting the installation angles of the auxiliary camera 2 and the detection camera 3 until the light emitted by the light outlet of the laser 4 returns to the light outlet of the laser 4 by the reflecting mirror 6.
In some alternative embodiments: referring to fig. 1 to 6, an embodiment of the present application provides a camera positioning method for visual detection of AR products, the method further comprising the steps of:
step 6, the driving module 5 drives the AR product to move along the X-axis direction and the Y-axis direction, so as to move the AR product to the position right below the auxiliary camera 2.
Step 7, the auxiliary camera 2 acquires the image information of the AR product and sends the image information to the image processor 8.
And 8, the image processor 8 processes the image information shot by the auxiliary camera 2 and calibrates the positions of a plurality of characteristic points in the image information.
And 9, the image processor 8 judges whether the AR product has position deviation in the X and Y directions according to the positions of the plurality of characteristic points, and if so, the controller 7 controls the driving module 5 to drive the AR product to correct the position.
In some alternative embodiments: referring to fig. 1 to 6, an embodiment of the present application provides a camera positioning method for visual detection of AR products, the method further comprising the steps of:
step 10, the controller 7 controls the driving module 5 to move the AR product to the position right below the detection camera 3 according to the position information of the feature points calibrated by the image processor 8 and the position information of the detection camera 3;
the driving module 5 finely adjusts the X, Y direction of the AR product according to the coordinate position of the characteristic point of the AR product, so that the characteristic point of the AR product is sequentially positioned at the right center of the detection camera 3;
after the detection camera 3 descends to a set height, shooting all the feature points of the AR product in sequence, and acquiring image information of all the feature points of the AR product.
Principle of operation
The embodiment of the application provides a camera positioning device and a camera positioning method for AR product visual detection, wherein the camera positioning device for AR product visual detection is provided with a jig carrier 1, an auxiliary camera 2 and a detection camera 3 are arranged at the top of the jig carrier 1, and the positions of the auxiliary camera 2 and the detection camera 3 are relatively fixed and are used for detecting image information of AR products; a correction device including a laser 4 and a mirror 6 for measuring perpendicularity of the auxiliary camera 2 and the detection camera 3 with respect to the jig stage 1, the mirror 6 being for reflecting emitted light emitted by the laser 4; when the light emitted from the light outlet of the laser 4 returns to the light outlet of the laser 4 through the reflecting mirror 6, the auxiliary camera 2 and the detection camera 3 are in a vertical state with the jig carrier 1.
Therefore, the camera positioning apparatus for visual inspection of AR products of the present application corrects the positional relationship between the auxiliary camera 2 and the inspection camera 3 and the jig stage 1 using the correction means. Specifically, the correction device detects the perpendicularity of the auxiliary camera 2 and the detection camera 3 by using a laser 4 vertically positioned on top of the jig stage 1 and a reflecting mirror 6 mounted on the auxiliary camera 2 and the detection camera 3. When the light emitted from the light outlet of the laser 4 is returned to the light outlet of the laser 4 by the reflecting mirror 6, the auxiliary camera 2 and the detection camera 3 are in a vertical state with the jig carrier 1. The device can realize real-time alignment of the detection camera in field operation, is simple and portable in operation and is low in cost.
In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the present application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A camera positioning apparatus for visual inspection of AR products, comprising:
the device comprises a jig carrier (1), wherein an auxiliary camera (2) and a detection camera (3) are arranged at the top of the jig carrier (1), and the positions of the auxiliary camera (2) and the detection camera (3) are relatively fixed and are used for detecting image information of AR products;
the correction device comprises a laser (4) and a reflecting mirror (6), wherein the laser is used for measuring the perpendicularity of the auxiliary camera (2) and the detection camera (3) relative to the jig carrying platform (1), and the reflecting mirror (6) is used for reflecting emitted light rays emitted by the laser (4).
2. A camera positioning apparatus for visual inspection of AR products as claimed in claim 1, wherein:
the auxiliary camera (2) and the detection camera (3) are fixed above the jig carrier (1) through a mounting bracket, and an angle adjusting mechanism for respectively adjusting the mounting angles of the auxiliary camera (2) and the detection camera (3) is arranged on the mounting bracket.
3. A camera positioning apparatus for visual inspection of AR products as claimed in claim 2, wherein:
the mounting bracket is provided with a height adjusting mechanism for adjusting the position height of the detection camera (3), and the height adjusting mechanism adjusts the focusing height of the detection camera (3) by adjusting the relative height between the detection camera (3) and the AR product.
4. A camera positioning apparatus for visual inspection of AR products as claimed in claim 1, wherein:
the laser (4) is fixed on the jig carrier (1), the emitted light rays emitted by the laser (4) are perpendicular to the jig carrier (1), and the two reflectors (6) are arranged and are respectively arranged on the lenses of the auxiliary camera (2) and the detection camera (3);
the bottom of tool microscope carrier (1) is equipped with drive tool microscope carrier (1) and laser instrument (4) along X axis direction and Y axis direction removal drive module (5) to make laser instrument (4) remove under reflector (6).
5. A camera positioning apparatus for visual inspection of AR products as claimed in claim 1, wherein:
the two lasers (4) are arranged, the two lasers (4) are respectively fixed on the auxiliary camera (2) and the detection camera (3), the emitted light rays emitted by the lasers (4) are parallel to the axes of the auxiliary camera (2) and the detection camera (3), and the reflecting mirror (6) is fixed on the jig carrier (1) and is parallel to the top surface of the jig carrier (1);
the bottom of tool microscope carrier (1) is equipped with the drive module (5) drive module that drive tool microscope carrier (1) and speculum (6) follow X axis direction and Y axis direction and remove, drive module (5) drive module in order to with speculum (6) remove to under two laser instrument (4).
6. A camera positioning apparatus for visual inspection of AR products according to claim 4 or 5, characterized in that:
the auxiliary camera (2) is connected with an image processor (8), and the image processor (8) is used for processing image information shot by the auxiliary camera (2) and calibrating the position of a characteristic point in the image information;
the driving module (5) is connected with a controller (7), and the controller (7) controls the driving module (5) to move the AR product to the position right below the detection camera (3) according to the position information of the characteristic points calibrated by the image processor and the position information of the detection camera (3).
7. A camera positioning apparatus for visual inspection of AR products as claimed in claim 1, wherein:
the laser instrument (4) include laser pen (41) to and laser pen mount pad (42) of fixed laser pen (41), be equipped with on laser pen mount pad (42) and adjust laser pen (41) light-emitting angle's regulation seat (43), still be connected with laser target board (44) on laser pen mount pad (42), the light-emitting mouth of laser pen (41) is located the central point of laser target board (44).
8. A camera positioning method for visual inspection of AR products, characterized in that the method uses the camera positioning device for visual inspection of AR products according to any one of claims 1 to 7, the method comprising:
an auxiliary camera (2) and a detection camera (3) are respectively arranged at the top of the jig carrier (1), and the positions of the auxiliary camera (2) and the detection camera (3) are relatively fixed;
installing a correction device for measuring the perpendicularity of the auxiliary camera (2) and the detection camera (3) relative to the jig carrier (1);
opening a laser (4) of the correction device, so that light rays emitted by the laser (4) irradiate on a reflecting mirror (6);
observing and judging whether the light emitted by the light outlet of the laser (4) returns to the light outlet of the laser (4) by the reflector (6);
if yes, judging that the auxiliary camera (2), the detection camera (3) and the jig carrier (1) are in a vertical state;
if not, judging that the auxiliary camera (2) and the detection camera (3) are in an inclined state with the jig carrying platform (1), and adjusting the installation angles of the auxiliary camera (2) and the detection camera (3) until the installation angles are vertical to the jig carrying platform (1).
9. The camera positioning method for visual inspection of AR products of claim 8, further comprising:
driving the AR product to move along the X-axis direction and the Y-axis direction by using the driving module (5) so as to move the AR product to the position right below the auxiliary camera (2);
the auxiliary camera (2) acquires image information of the AR product and sends the image information to the image processor (8);
an image processor (8) processes the image information shot by the auxiliary camera (2) and calibrates the positions of a plurality of characteristic points in the image information;
the image processor (8) judges whether the AR product has position deviation in the X and Y directions according to the characteristic point positions, and if yes, the controller (7) drives the module (5) to drive the AR product to correct the position.
10. The camera positioning method for visual inspection of AR products of claim 9, further comprising:
the controller (7) controls the driving module (5) to move the AR product to the position right below the detection camera (3) according to the position information of the characteristic points calibrated by the image processor (8) and the position information of the detection camera (3);
the driving module (5) finely adjusts the X, Y direction of the AR product, so that the characteristic points of the AR product are sequentially positioned at the right center of the detection camera (3);
after the detection camera (3) descends to a set height, shooting all the characteristic points of the AR product in sequence, and obtaining the image information of all the characteristic points of the AR product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311173802.8A CN117232787A (en) | 2023-09-12 | 2023-09-12 | Camera positioning device and method for AR product visual detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311173802.8A CN117232787A (en) | 2023-09-12 | 2023-09-12 | Camera positioning device and method for AR product visual detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117232787A true CN117232787A (en) | 2023-12-15 |
Family
ID=89097801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311173802.8A Pending CN117232787A (en) | 2023-09-12 | 2023-09-12 | Camera positioning device and method for AR product visual detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117232787A (en) |
-
2023
- 2023-09-12 CN CN202311173802.8A patent/CN117232787A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103261838B (en) | Robot surveying instrument and the telescopical automatic autocollimatic method for surveying instrument including auto-collimation target | |
| CN113074669A (en) | Laser projector with flash alignment | |
| CN110736424B (en) | Calibration method of structured light projection module group equipment and projection module group measurement method | |
| KR20150087538A (en) | Focus regulator and focus regulating method of camera module | |
| CN117232787A (en) | Camera positioning device and method for AR product visual detection | |
| WO2002055925A2 (en) | Light source apparatus, its manufacturing method and apparatus, reflector focal point locating method and apparatus, focal point locating light source, discharge lamp emittion position locating method and apparatus, and discharge lamp-refletor positioning method and apparatus | |
| CN110824722B (en) | Structured light projection module assembly device and projection module assembly and detection method | |
| CN114428381B (en) | Alignment of lens elements in a lens module with an image sensor | |
| CN115014204A (en) | Geometric center positioning measurement method and system for near-to-eye display equipment | |
| CN110031189B (en) | Optical axis positioning device and method | |
| KR102574468B1 (en) | An apparatus for alignment lens module and a method for alignment lens module using the same | |
| CN113588213A (en) | Binocular camera optical axis calibration method and device for VR test | |
| KR20170047141A (en) | Inspection apparatus for lens module | |
| JP2008209295A (en) | Device for measuring size | |
| CN113050292A (en) | Optical system for optical axis calibration and optical axis calibration method | |
| CN217638728U (en) | Detection device | |
| CN114942506B (en) | Calibration method of assembly system for periscope type camera module based on collimator | |
| TWI759052B (en) | Level correction system | |
| CN212319248U (en) | Vision moving automatic distance adjusting device | |
| JP3105422B2 (en) | Wire bonding inspection equipment | |
| CN114415464B (en) | Optical axis calibration device and system | |
| CN220761391U (en) | Laser processing precision calibration device and laser processing system | |
| CN211180429U (en) | Optical system for optical axis calibration | |
| CN112954146B (en) | Camera module mounting equipment and mounting method thereof | |
| CN114877812B (en) | Automatic detection equipment for DH of notebook computer shell and use method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |