CN111711802A - Workpiece image acquisition method and system - Google Patents
Workpiece image acquisition method and system Download PDFInfo
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- CN111711802A CN111711802A CN202010622229.4A CN202010622229A CN111711802A CN 111711802 A CN111711802 A CN 111711802A CN 202010622229 A CN202010622229 A CN 202010622229A CN 111711802 A CN111711802 A CN 111711802A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/69—Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/695—Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
Abstract
The application provides a workpiece image acquisition method and system. Judging whether the workpiece in the first image exceeds the visual field range through a controller; if so, the controller transmits a range adjusting signal to the image acquisition device, so that the image acquisition device shoots a second image after adjusting the shooting range according to the range adjusting signal and transmits the second image to the controller; the controller then acquires a complete image of the workpiece from the first image and the second image. The shooting range of the image acquisition device is adjusted, so that the second image can shoot the rest part of the workpiece which is not acquired by the first image, and a complete workpiece image is acquired through the first image and the second image. The problem of current when the work piece size is too big, can not take the work piece image completely is solved.
Description
Technical Field
The application relates to the field of images, in particular to a workpiece image acquisition method and system.
Background
With scientific progress and social development, more and more industries are applied to video monitoring. The target is observed or detected by collecting the image corresponding to the target, so that the existing manual detection and observation are replaced, and the investment of manpower and time is reduced.
In order to guarantee the quality and efficiency of observation and detection, it is important to obtain a clear and complete target image. How to acquire a clear and complete target image is exactly the technical problem to be solved.
Disclosure of Invention
The present application is directed to a workpiece image capturing method and system, so as to solve the above problems.
In order to achieve the above purpose, the embodiments of the present application employ the following technical solutions:
in a first aspect, an embodiment of the present application provides a workpiece image acquisition method, including:
the controller judges whether the workpiece in the first image exceeds the visual field range;
if so, the controller transmits a range adjustment signal to the image acquisition device;
the image acquisition device changes the shooting range according to the range adjustment signal;
the image acquisition device shoots a second image after adjusting the shooting range according to the range adjustment signal, and transmits the second image to the controller;
the controller acquires a complete workpiece image according to the first image and the second image.
In a second aspect, an embodiment of the present application provides a workpiece image acquisition system, which includes a controller and an image acquisition device, where the controller is electrically connected to the image acquisition device;
the controller is used for judging whether the workpiece in the first image exceeds the visual field range; if so, transmitting a range adjustment signal to the image acquisition device;
the image acquisition device is used for shooting a second image after adjusting the shooting range according to the range adjusting signal and transmitting the second image to the controller;
the controller is further configured to acquire a complete workpiece image from the first image and the second image.
Compared with the prior art, the workpiece image acquisition method and the workpiece image acquisition system provided by the embodiment of the application have the beneficial effects that: judging whether the workpiece in the first image exceeds the visual field range through a controller; if so, the controller transmits a range adjusting signal to the image acquisition device, so that the image acquisition device shoots a second image after adjusting the shooting range according to the range adjusting signal and transmits the second image to the controller; the controller then acquires a complete image of the workpiece from the first image and the second image. The shooting range of the image acquisition device is adjusted, so that the second image can shoot the rest part of the workpiece which is not acquired by the first image, and a complete workpiece image is acquired through the first image and the second image. The problem of current when the work piece size is too big, can not take the work piece image completely is solved.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and it will be apparent to those skilled in the art that other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a workpiece image acquisition system according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart of a workpiece image acquisition method according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a first image provided by an embodiment of the present application;
fig. 4 is a schematic flowchart of a workpiece image capturing method according to an embodiment of the present disclosure;
FIG. 5 is a flowchart illustrating a workpiece image capturing method according to an embodiment of the present disclosure;
FIG. 6 is a flowchart illustrating a workpiece image capturing method according to an embodiment of the present disclosure;
fig. 7 is a schematic flowchart of a workpiece image capturing method according to an embodiment of the present disclosure.
In the figure: 10-a controller; 20-an image acquisition device; 30-a trigger sensor; 40-light source device.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally found in use of products of the application, and are used only for convenience in describing the present application and for simplification of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
In recent years, the machine vision technology is developed rapidly, the application range is wide, and the development prospect is optimistic. Many of the technologies used in machine vision technology are from computer science, which has been developed for over 20 years from the beginning to the present day, during which the range and functions of machine vision technology application are continuously perfected due to the continuous development of scientific technology and the continuous high standard requirements of industrial automation. Machine vision is a very active research area, and special research is also being established for data acquisition in machine vision technology. However, when the size of the workpiece is large, the camera cannot completely acquire the workpiece image at a time, so that the acquisition and the recognition of the workpiece image with the over-view field are still problems to be solved urgently at present.
Over time, industrial measurement technology is also continuously developing, and image acquisition technology based on machine vision is the dominant of image data acquisition technology at present. In machine vision applications, image acquisition is the first step in its success. A clear, stable and low-noise image is the basis of rate guarantee of subsequent detection and processing.
The conventional large-size workpiece image acquisition has low efficiency, low precision and high acquisition error rate, and particularly has low efficiency in the conventional method for acquiring and identifying data information of images of some oversized and complicated workpieces. And other contact type acquisition equipment can meet the acquisition requirement, but the field requirement is higher due to the contact type acquisition mode.
The embodiment of the application provides a method for acquiring a possible super-view workpiece image based on a machine vision technology, and the method can solve the problems of high acquisition difficulty, easiness in omission, acquisition errors, low speed and the like of super-view image data.
The workpiece image acquisition method provided by the embodiment of the application is applied to the workpiece image acquisition system shown in fig. 1. The workpiece image acquisition system includes a controller 10, an image acquisition device 20, a trigger sensor 30, and a light source device 40. The controller 10 is electrically connected to the image capturing device 20, the trigger sensor 30, and the light source device 40, respectively.
The controller 10 is used to execute stored executable modules, such as computer programs.
The controller 10 may be an integrated circuit chip having signal processing capabilities. In implementation, some of the steps of the workpiece image acquisition method may be performed by integrated logic circuits of hardware or instructions in the form of software in the controller 10. The controller 10 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the device can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, or a discrete hardware component.
The image pickup device 20 may be composed of a GIGE camera and a lens. The image capturing device 20 is used for capturing a current image and transmitting the captured image to the controller 10.
The trigger sensor 30 may be an infrared transceiver sensor or other sensor (pressure sensor, etc.) that can detect the entry of an object into a designated area. The trigger sensor 30 is used to transmit a workpiece signal to the controller 10 when the workpiece enters the target shooting range, wherein the workpiece signal indicates that the workpiece is entering or has entered the shooting range of the image capturing device 20.
The light source device 40 may be an incandescent lamp, a laser light source, a halogen lamp, or an LED normally-on light source, wherein most of the laser light sources are linear light sources and cooperate with the line camera to work in a narrow application range.
When the system is to acquire an image of an object moving at a high speed, the system is required to operate in a short exposure mode in order to ensure the image quality. Under the condition, a new requirement is put forward for a light source device of the acquisition system, namely, enough high brightness is required firstly to ensure that the acquisition system has enough luminous flux within short exposure time; secondly, if the high-brightness light source directly works in a normally bright mode, the working life of the high-brightness light source is greatly reduced, so that the working mode of the light source is required to be a flash mode; and finally, only when the light emitting time of the flash light source and the exposure time of the acquisition system reach an accurate synchronization state, the flash light is effective, and the acquisition system can obtain a clear image.
It should be understood that the configuration shown in fig. 1 is merely a schematic configuration of a portion of a workpiece image acquisition system, and that the workpiece image acquisition system may include more or fewer components than shown in fig. 1, or have a different configuration than shown in fig. 1. The components shown in fig. 1 may be implemented in hardware, software, or a combination thereof.
The workpiece image acquisition method provided by the embodiment of the invention can be applied to, but is not limited to, the workpiece image acquisition system shown in fig. 1, and please refer to fig. 2:
s110, the controller judges whether the workpiece in the first image exceeds the visual field range. If yes, go to S113; if not, S111 is executed.
Referring to fig. 3, T is a first image and a is a workpiece therein. The image T now does not include the complete workpiece a, i.e. a part of the workpiece a is still outside the image. I.e. the workpiece a is beyond the field of view of the image T. In order to acquire a complete workpiece image, S113 needs to be performed. If the image T includes the complete workpiece a, it indicates that the workpiece a is not beyond the view range of the image T, and S111 may be executed.
S111, the controller determines the first image as a complete workpiece image.
In particular, when the first image contains a complete workpiece, the first image may be determined to be a complete workpiece image.
And S113, the controller transmits a range adjustment signal to the image acquisition device.
Specifically, the current shooting range of the image pickup device 20 does not completely include the workpiece. The photographing range of the image pickup device 20 needs to be adjusted, so the controller 10 generates a range adjustment signal and transmits the range adjustment signal to the image pickup device 20.
And S114, after the image acquisition device adjusts the shooting range according to the range adjustment signal, shooting a second image, and transmitting the second image to the controller.
Specifically, after receiving the range adjustment signal, the image capturing device 20 correspondingly adjusts the shooting range according to the signal, so that the current shooting range can cover a part of the first image, which is not shot by the workpiece, and at this time, a second image is shot, and the second image is transmitted to the controller 10.
And S115, acquiring a complete workpiece image by the controller according to the first image and the second image.
Specifically, the controller 10 splices the first image and the second image, and a complete workpiece image can be acquired.
In summary, in the workpiece image collecting method provided in the embodiment of the present application, whether the workpiece in the first image exceeds the field of view is determined by the controller; if so, the controller transmits a range adjusting signal to the image acquisition device, so that the image acquisition device shoots a second image after adjusting the shooting range according to the range adjusting signal and transmits the second image to the controller; the controller then acquires a complete image of the workpiece from the first image and the second image. The shooting range of the image acquisition device is adjusted, so that the second image can shoot the rest part of the workpiece which is not acquired by the first image, and a complete workpiece image is acquired through the first image and the second image. The problem of current when the work piece size is too big, can not take the work piece image completely is solved.
On the basis of fig. 2, regarding the step of acquiring the first image, a possible implementation manner is further provided in the embodiment of the present application, please refer to fig. 4, where the method for acquiring the workpiece image further includes:
s101, the controller receives a workpiece signal transmitted by the trigger sensor, wherein the workpiece signal indicates that the workpiece enters or enters a shooting range of the image acquisition device.
Specifically, when the workpiece reaches a specified position, the signal of the infrared transmitting/receiving sensor is blocked, and at this time, the infrared transmitting/receiving sensor transmits the workpiece signal to the controller 10. Alternatively, when the workpiece reaches a specified position, the pressure value detected by the pressure sensor changes, and the pressure sensor sends a workpiece signal to the controller 10.
S108, the controller transmits a trigger signal to the image acquisition device.
Specifically, after receiving the workpiece signal, the controller 10 transmits a trigger signal to the image capturing device 20, so that the image capturing device 20 captures a first image.
And S109, shooting a first image by the image acquisition device after receiving the trigger signal, and transmitting the first image to the controller.
On the basis of fig. 4, in order to improve the quality of the image captured by the image capturing device 20, a possible implementation manner is further provided in the embodiment of the present application, please refer to fig. 5, in which the workpiece image capturing method further includes:
and S106, the controller sends a starting signal to the light source device.
S107, the light source device is switched to the on state after receiving the on signal.
Specifically, after the light source device 40 is turned on, the brightness of the current environment is increased, which is beneficial for the image acquisition device 20 to shoot, and the obtained image is clearer.
On the basis of fig. 4, in order to ensure the effect of improving the image quality, the embodiment of the present application further provides a possible implementation manner, please refer to fig. 6, where the workpiece image acquisition method further includes:
s102, the controller sends a position adjusting signal to the light source device according to the position of the workpiece.
And S103, changing the relative position of the light source device with the workpiece and the image acquisition device according to the position adjusting signal.
Specifically, the position of the light source device 40 is adjusted by the position of the workpiece, and the adjusted light source device 40 can accurately expose the position of the workpiece, thereby improving the quality.
And S104, the controller sends a brightness adjusting signal to the light source device according to the ambient brightness.
S105, the light source device adjusts the brightness according to the brightness adjusting signal.
Specifically, the brightness required for image shooting is moderate, and the brightness of the light source device 40 is adjusted according to the ambient brightness at this time, so that the brightness meets the shooting requirement, and the image quality is guaranteed.
On the basis of fig. 2, as to how to generate the range adjustment signal, the embodiment of the present application further provides a possible implementation manner, please refer to fig. 7, where the workpiece image capturing method further includes:
and S112, generating a range adjusting signal by the controller according to the position of the workpiece in the first image and the current shooting range of the image acquisition device.
Specifically, a possible shooting range of the second image is pre-charged according to the position of the workpiece in the first image and the current shooting range of the image acquisition device, so that a range adjustment signal is generated.
Possibly, the range adjustment signal is a signal driving the image acquisition device 20 to translate.
The workpiece image acquisition system provided by the embodiment of the application is shown in fig. 1. Alternatively, the workpiece image acquisition method described above is applied to the workpiece image acquisition system described above.
The workpiece image acquisition system comprises a controller 10 and an image acquisition device 20, wherein the controller is electrically connected with the image acquisition device;
the controller 10 is used for judging whether the workpiece in the first image exceeds the visual field range; if so, transmitting a range adjustment signal to the image acquisition device 20;
the image acquisition device 20 is used for changing the shooting range according to the range adjusting signal; and is also used for taking a second image and transmitting the second image to the controller 10;
the controller 10 is also configured to acquire a complete image of the workpiece based on the first image and the second image.
Further, the controller 10 is further configured to receive a workpiece signal transmitted by the trigger sensor 30 before determining whether the workpiece in the first image is out of the field of view, wherein the workpiece signal indicates that the workpiece is entering or has entered the capturing range of the image capturing device; and is also used to transmit a trigger signal to the image acquisition device 20;
the image capturing device 20 is specifically configured to capture a first image after receiving the trigger signal, and transmit the first image to the controller 10.
Further, the controller 10 is further configured to send a turn-on signal to the light source device 40 after receiving the workpiece signal transmitted by the trigger sensor 30;
the light source device 40 is configured to switch to an on state after receiving the on signal.
Further, before the controller 10 is further configured to transmit the range adjustment signal to the image capturing device 20, the range adjustment signal is generated according to the position of the workpiece in the first image and the current shooting range of the image capturing device 20.
It should be noted that the workpiece image capturing system provided in this embodiment may execute the method flows shown in the above method flow embodiments to achieve the corresponding technical effects. For the sake of brevity, the corresponding contents in the above embodiments may be referred to where not mentioned in this embodiment.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. A method of workpiece image acquisition, the method comprising:
the controller judges whether the workpiece in the first image exceeds the visual field range;
if so, the controller transmits a range adjustment signal to the image acquisition device;
the image acquisition device changes the shooting range according to the range adjustment signal;
the image acquisition device shoots a second image after adjusting the shooting range according to the range adjustment signal, and transmits the second image to the controller;
the controller acquires a complete workpiece image according to the first image and the second image.
2. The method of claim 1, wherein prior to the controller determining whether the workpiece in the first image is out of view, the method further comprises:
the controller receives a workpiece signal transmitted by a trigger sensor, wherein the workpiece signal indicates that the workpiece enters or enters a shooting range of the image acquisition device;
the controller transmits a trigger signal to the image acquisition device;
and after receiving the trigger signal, the image acquisition device shoots the first image and transmits the first image to the controller.
3. The workpiece image acquisition method of claim 2, wherein after the controller receives the workpiece signal transmitted by the trigger sensor, the method further comprises:
the controller sends a starting signal to the light source device;
and the light source device is switched to an opening state after receiving the opening signal.
4. The workpiece image acquisition method of claim 2, wherein after the controller receives the workpiece signal transmitted by the trigger sensor, the method further comprises:
the controller sends a position adjusting signal to the light source device according to the position of the workpiece;
the light source device changes the relative position between the light source device and the workpiece and the image acquisition device according to the position adjusting signal;
the controller sends a brightness adjusting signal to the light source device according to the ambient brightness;
and the light source device adjusts the brightness according to the brightness adjusting signal.
5. The workpiece image acquisition method of claim 1, wherein prior to the controller transmitting a range adjustment signal to the image acquisition device, the method further comprises:
the controller generates the range adjustment signal according to the position of the workpiece in the first image and the current shooting range of the image acquisition device.
6. The workpiece image capture method of claim 1, wherein the range adjustment signal is a signal that drives translation of the image capture device.
7. The workpiece image acquisition system is characterized by comprising a controller and an image acquisition device, wherein the controller is electrically connected with the image acquisition device;
the controller is used for judging whether the workpiece in the first image exceeds the visual field range; if so, transmitting a range adjustment signal to the image acquisition device;
the image acquisition device is used for shooting a second image after adjusting the shooting range according to the range adjusting signal and transmitting the second image to the controller;
the controller is further configured to acquire a complete workpiece image from the first image and the second image.
8. The workpiece image capture system of claim 7, wherein the controller is further configured to receive a workpiece signal from a trigger sensor prior to determining whether the workpiece in the first image is outside the field of view, wherein the workpiece signal indicates that the workpiece is entering or has entered a capture range of the image capture device; the image acquisition device is also used for transmitting a trigger signal to the image acquisition device;
the image acquisition device is specifically used for shooting the first image after receiving the trigger signal and transmitting the first image to the controller.
9. The workpiece image acquisition system of claim 8, wherein the controller is further configured to send a turn-on signal to the light source device after receiving the workpiece signal transmitted by the trigger sensor;
and the light source device is used for switching to an opening state after receiving the opening signal.
10. The workpiece image capture system of claim 7, wherein the range adjustment signal is generated based on the position of the workpiece in the first image and a current capture range of the image capture device before the controller is further configured to transmit the range adjustment signal to the image capture device.
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| CN202010622229.4A CN111711802A (en) | 2020-06-30 | 2020-06-30 | Workpiece image acquisition method and system |
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| CN202010622229.4A CN111711802A (en) | 2020-06-30 | 2020-06-30 | Workpiece image acquisition method and system |
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| JP2000201348A (en) * | 1999-01-08 | 2000-07-18 | Hitachi Software Eng Co Ltd | Image synthesizer |
| US20080055457A1 (en) * | 2006-08-31 | 2008-03-06 | Pentax Corporation | Camera having a focusing adjusting system |
| CN103927728A (en) * | 2013-01-10 | 2014-07-16 | 联想(北京)有限公司 | Image processing method and apparatus |
| CN107044823A (en) * | 2016-02-05 | 2017-08-15 | 株式会社三丰 | Image measuring apparatus and program |
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