CN110493487A - A kind of data processing method, device and system - Google Patents
A kind of data processing method, device and system Download PDFInfo
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- CN110493487A CN110493487A CN201910780179.XA CN201910780179A CN110493487A CN 110493487 A CN110493487 A CN 110493487A CN 201910780179 A CN201910780179 A CN 201910780179A CN 110493487 A CN110493487 A CN 110493487A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
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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
- H04N23/667—Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
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- Engineering & Computer Science (AREA)
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Abstract
The embodiment of the present application discloses a kind of data processing method, device and system, control camera enters operational mode, obtain the photographed data from camera, valid data are determined from photographed data, image can be generated according to valid data, and show the image of generation, staff can determine whether camera can be used according to the image of display in this way, that is, in initial stage of development, it can not need specifically to show equipment, such as LCD or VGA etc. shows equipment, the test to the availability of camera can be realized, this mode is convenient and efficient, it is low in cost, test speed is very fast.
Description
Technical field
The present invention relates to field of computer technology, more particularly to a kind of data processing method, device and system.
Background technique
With the popularity of the internet with the development of Video Supervision Technique, network video monitor and control system in society, gradually open by popularization
Come.In image/video acquisition system, camera collection image data can be used, pass through the liquid crystal display of connection
The displays such as (Liquid Crystal Display, LCD) or Video Graphics Array (Video Graphics Array, VGA) are set
The standby display for carrying out image data, therefore the availability of camera is particularly important.However in the exploitation of image/video acquisition system
How initial stage, camera are tested the availability of camera there is no connecting with corresponding display equipment, are filtered out available
Camera, be more important problem.
Summary of the invention
In order to solve the above technical problems, the embodiment of the present application provides a kind of data processing method, device and system, to camera shooting
Collected data are handled, and realize the test to camera availability.
The embodiment of the present application provides a kind of data processing method, is applied to data processing equipment, comprising:
Control camera enters operational mode；
Obtain the photographed data from the camera；
Valid data are determined from the photographed data；
Image is generated according to the valid data, and shows described image.
Optionally, the photographed data of the acquisition from the camera, comprising:
Using the rising edge of the frame synchronizing signal of the camera as trigger signal, the shooting number from the camera is obtained
According to.
Optionally, the photographed data of the acquisition from the camera, comprising:
The photographed data that the camera shoots actual object is obtained, or, obtaining the camera according to test
The photographed data that image generates.
It is optionally, described to determine valid data from the photographed data, comprising:
By the shooting that the pixel clock signal of the camera, line synchronising signal and frame synchronizing signal are between high period
Data are as valid data.
Optionally, the control camera enters operational mode, comprising:
It is that the camera configures device address by the twin wire channel universal serial bus I2C after being connect with camera；
After receiving the response message from the camera, controls the camera and enter operational mode.
The embodiment of the present application provides a kind of data processing equipment, is applied to data processing equipment, comprising:
Mode controlling unit enters operational mode for controlling camera；
Data capture unit, for obtaining the photographed data from the camera；
Data determination unit, for determining valid data from the photographed data；
Data processing unit for generating image according to the valid data, and shows described image.
Optionally, the data capture unit is specifically used for:
Using the rising edge of the frame synchronizing signal of the camera as trigger signal, the shooting number from the camera is obtained
According to.
Optionally, the data capture unit, comprising:
First acquisition unit, the photographed data that actual object is shot for obtaining the camera；Or,
Second acquisition unit, the photographed data generated for obtaining the camera according to test image.
Optionally, the data determination unit is specifically used for:
By the shooting that the pixel clock signal of the camera, line synchronising signal and frame synchronizing signal are between high period
Data are as valid data.
Optionally, the mode controlling unit, comprising:
Address configuration unit, for being the camera shooting by the twin wire channel universal serial bus I2C after being connect with camera
Head configuration device address；
Scheme control subelement, for controlling the camera after receiving the response message from the camera
Into operational mode.
The embodiment of the present application provides a kind of data processing system, comprising:
Such as the data processing equipment provided in the embodiment of the present application；
The logic analyser of the data processing equipment and camera is connected, the logic analyser is used for the camera shooting
The photographed data of head is sent to the data processing equipment.
The embodiment of the present application provides a kind of data processing method, device and system, and control camera enters operational mode,
The photographed data from camera is obtained, valid data are determined from photographed data, image can be generated according to valid data,
And show the image of generation, and such staff can determine whether camera can be used according to the image of display, in initial stage of development,
It does not need specifically to show equipment, the test to the availability of camera can be realized, this mode is convenient and efficient, at low cost
Honest and clean, test speed is very fast.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations as described in this application
Example, for those of ordinary skill in the art, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural block diagram of data processing system provided by the embodiments of the present application；
Fig. 2 is a kind of flow chart of data processing method provided by the embodiments of the present application；
Fig. 3 is a kind of structural block diagram of data processing equipment provided by the embodiments of the present application.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only this
Apply for a part of the embodiment, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall in the protection scope of this application.
As the explanation of background technique, in image/video acquisition system, camera collection image data can be used, lead to
It crosses LCD or VGA etc. and shows that equipment carries out the display of image data, therefore the availability of camera is particularly important.However in image
The initial stage of development of video acquisition system, camera there is no and accordingly show equipment connect, be difficult at this time to camera can
It is tested with property, and not available camera is connected in image/video acquisition system, will lead to whole image video and adopt
Collecting system is unavailable.Therefore, how the availability of camera is tested, is current to filter out available camera
Image/video acquires the important problem in one, field.
Based on the above technical problem, the embodiment of the present application provides a kind of data processing method, device and system, and control is taken the photograph
As head enters operational mode, the photographed data from camera is obtained, valid data are determined from photographed data, according to effective
Image can be generated in data, and shows the image of generation, and such staff can determine that camera is according to the image of display
It is no available, that is to say, that in initial stage of development, it may not be necessary to specifically to show that equipment, such as LCD or VGA etc. show equipment, i.e.,
The test to the availability of camera can be achieved, this mode is convenient and efficient, and low in cost, test speed is very fast.
In order to when the embodiment of the present application it is clearer, below with reference to Fig. 1, to an exemplary scene of the embodiment of the present application
It is introduced.
A kind of data processing method provided by the embodiments of the present application, can be applied in exemplary scene as shown in Figure 1.
In the scene, camera can be connected with logic analyser, and logic analyser is connect with data processing equipment, camera and logic
Connected between analyzer by pin, specifically, can be connected by PCB interface board, camera and logic analyser respectively with
Following 13 pin pins connection on PCB interface board: clock sclk, data line sda, line synchronising signal cam_hsync, frame are same
Walk signal cam_vsync, pixel clock cam_pclk, data output signal camdata0~7.
Data processing equipment can control camera by logic analyser and enter operational mode, obtain from camera
Photographed data determines valid data from photographed data, generates image according to valid data, that is to say, that by camera and
After logic analyser connection, the corresponding image of photographed data of camera can be obtained, it in this way can be to the availability of camera
It is tested, easy to operate, low in cost, test speed is fast.Data processing equipment can be with data-handling capacity
Terminal, such as computer etc. is based on field programmable gate array (Field-Programmable Gate in camera
Array, FPGA) graphics video acquisition system in camera when, for example, camera of MT9P001 model, data processing
Equipment is FPGA control module.
With reference to the accompanying drawing, data processing method provided by the embodiments of the present application, device are described in detail by embodiment
And the specific implementation of system.
Refering to what is shown in Fig. 1, being a kind of flow chart of data processing method provided by the embodiments of the present application, this method is applied to
Data processing equipment includes the following steps.
S101, control camera enter operational mode.
Camera is a kind of video input apparatus, generally has the basic functions such as video camera and still image capture, In
Camera in image/video acquisition system can be sent to display equipment and be shown, to realize after collecting the data
Video monitoring.In the initial stage of development of image/video acquisition system, not with the matched display equipment of camera, even if camera have
There is the function of shooting image, staff can not also see the video of shooting, therefore the more difficult test of availability of camera.
In the embodiment of the present application, it can control camera and enter operational mode, specifically, the work of camera can be modified
Operation mode makes camera enter operational mode (continuous mode) from standby mode (standby mode), images at this time
Head start acquire data, so as to carry out camera availability test.It is understood that operational mode packet here
Operating mode and test pattern (test mode) are included, in the operational mode, camera has the energy shot to actual object
Power, so that photographed data is obtained, and in test mode, camera does not shoot actual object, but can be according to survey
Attempt as generating photographed data.
Before control camera carries out operational mode, the connection confirmation of camera can also be carried out.Specifically, can be
After establishing connection with camera, device address is configured for camera and illustrates to connect after receiving the response message from camera
It is connected into function, camera can be searched out, camera is can control at this time and enters operational mode.Specifically, serial by twin wire
Bus (Inter-Integrated Circuit, I2C) collocation channel configures camera device address (slave address),
And obtain positive acknowledgment (Acknowledgement, ack) message from camera.
After carrying out the connection confirmation of camera, the running parameter of camera can also be obtained, and according to the work of camera
Make parameter to control camera.Such as resolution ratio, transmission frame number (the Frames Per per second of available camera
Second, fps), the parameters such as operating mode can be to the Working mould of camera after these running parameters for obtaining camera
Formula is adjusted, such as the operating mode of camera is adjusted to operational mode from standby mode.
Control camera enters operational mode and obtains the running parameter of camera, can also pass through I2C collocation channel
It carries out.It could be formed with the channel I2C, logic analysis in aforementioned applications scene, between data processing equipment and logic analyser
It is also possible to be formed with the channel I2C between instrument and camera.
S102 obtains the photographed data from camera.
When camera is in operational mode, data acquisition is started, the shooting number from camera available at this time
According to.Since the purpose that the embodiment of the present application obtains photographed data is to detect the availability of camera, as long as really
Determine the ability that camera has data acquisition, therefore the photographed data from camera obtained can be a frame image
Data carry out the confirmation of the availability of camera according to the data of this frame image, it is of course also possible to obtain the number of multiple image
According to the later period can screen the data of multiple image to obtain the data of a frame image, Huo Zheye when determining valid data
The confirmation of the availability of camera can be carried out according to the data of multiple image, the detection for improving the availability of camera is accurate
Property.
When it is implemented, the photographed data of camera can be obtained according to the line synchronising signal cam_hsync of camera.
Such as data processing equipment can obtain the photographed data from camera by logic analyser, logic analyser can be in frame
The rising edge of synchronization signal cam_vsync is trigger signal, obtains photographed data, the photographed data as camera.Usually come
It when saying that the rising edge of frame synchronizing signal cam_hsync starts, indicates that camera has started the acquisition of a frame data, believes in frame synchronization
When the failing edge of number cam_hsync starts, indicates that camera acquires a frame data and complete.According to frame synchronizing signal cam_
Vsync can accurately obtain the photographed data of a frame or the photographed data of multiframe.
It is understood that camera is the photographed data acquired under test scene, these photographed datas be can be
Actual object is shot under operating mode, is also possible to the test number generated in test mode according to test image
According to, such as test image can be the lines combination of the rainbow stripe or different colours of color gradient.
S103 determines valid data from photographed data.
After camera gets photographed data, these photographed datas may not necessarily valid data, in the application
In embodiment, valid data can also be determined from photographed data.Here valid data are the numbers that can be converted to picture
According to, and other data except valid data are the redundant datas that camera generates under specific operation mode.
Specifically, can determine valid data by the shell script in data processing equipment.
When it is implemented, can according to the pixel clock signal cam_pclk of camera, line synchronising signal cam_hsync,
Frame synchronizing signal cam_vsync, determines valid data from photographed data.Wherein, pixel clock signal cam_pclk rises
Along data stabilization, an image data can be effectively acquired, line synchronising signal cam_hsync rising edge can start data line
Acquisition, when acquiring width and reaching the first preset value, data line acquisition terminates, and line synchronising signal cam_hsync is from high electricity
Truncation is changed to low level.It is understood that frame synchronizing signal cam_hsync between high period, may include that multiple rows are same
The rising edge of signal cam_hsync is walked, indicates that the acquisition of a frame data may include the acquisition of multirow data, multirow data are adopted
May exist time slot between collection process, the collected data in the time slot are usually redundant data.
Such as data processing equipment can obtain photographed data, pixel clock from camera by logic analyser and believe
Number cam_pclk, line synchronising signal cam_hsync and frame synchronizing signal cam_vsync, then according to pixel clock signal cam_
Pclk, line synchronising signal cam_hsync and frame synchronizing signal cam_vsync determine valid data.
It is high period in pixel clock signal cam_pclk, line synchronising signal cam_hsync in the embodiment of the present application
Between photographed data, be effective row data, therefore can be by pixel clock signal cam_pclk, line synchronising signal cam_
Hsync and frame synchronizing signal cam_vsync is beat of data signal between high period as valid data, can in valid data
To correspond to a rising edge of frame synchronizing signal cam_vsync, multiple risings of frame synchronizing signal cam_vsync can also be corresponded to
Edge.If the rising edge of the corresponding frame synchronizing signal cam_vsync of valid data can determine that valid data are a frame data
In valid data can determine valid data if valid data correspond to the rising edge of multiple frame synchronizing signal cam_vsync
Valid data for the valid data in multiframe data, multiframe data can be divided into multiple data, be respectively processed.
S104 generates image according to valid data, and shows image.
After determining valid data in photographed data, image can be generated according to valid data, and carry out image
Display.Image is generated according to valid data, can be specially that valid data are converted into image by shell script, generation
Picture format can be jpg, be also possible to other picture formats.
If valid data are the valid data in a frame data, an image can be generated, and carry out the display of image,
If valid data are the valid data in multiframe data, multiple images can be generated respectively, and carry out the display of image.
Under the different acquisition mode of camera, obtained photographed data is different, thus determine that valid data not yet
Together, the image of generation is also different, if camera shoots material object to obtain photographed data, the image generated is figure in kind
Picture, if camera is the test data obtained according to preset test image starting shooting, the image generated is test chart
Picture, such as the image of the lines combination of the image or different colours of the rainbow stripe of color gradient can be generated.
Staff can determine whether camera can be used in the image for seeing display.It is understood that if display
Image is image or test image in kind, it may be considered that camera is available, if the image of display is disorderly and unsystematic or face
The single image of color, it may be considered that camera is unavailable.Therefore, this method can help staff to be rapidly performed by camera shooting
The test of head availability.
The embodiment of the present application provides a kind of data processing method, and control camera enters operational mode, obtains to come from and take the photograph
As the photographed data of head, valid data are determined from photographed data, image can be generated according to valid data, and show generation
Image, such staff can determine whether camera can be used according to the image of display, that is to say, that in initial stage of development,
It can not need specifically to show that equipment, such as LCD or VGA etc. show equipment, the survey to the availability of camera can be realized
Examination, this mode is convenient and efficient, and low in cost, test speed is very fast.
Based on above data processing method, the embodiment of the present application also provides a kind of data processing equipments, with reference to Fig. 3 institute
Show, be a kind of structural block diagram of data processing equipment provided by the embodiments of the present application, which is applied to data processing equipment, packet
It includes:
Mode controlling unit 110 enters operational mode for controlling camera；
Data capture unit 120, for obtaining the photographed data from the camera；
Data determination unit 130, for determining valid data from the photographed data；
Data processing unit 140 for generating image according to the valid data, and shows described image.
Optionally, the data capture unit is specifically used for:
Using the rising edge of the frame synchronizing signal of the camera as trigger signal, the shooting number from the camera is obtained
According to.
Optionally, the data capture unit, comprising:
First acquisition unit, the photographed data that actual object is shot for obtaining the camera；Or,
Second acquisition unit, the photographed data generated for obtaining the camera according to test image.
Optionally, the data determination unit is specifically used for:
By the shooting that the pixel clock signal of the camera, line synchronising signal and frame synchronizing signal are between high period
Data are as valid data.
Optionally, the mode controlling unit, comprising:
Address configuration unit, for being the camera shooting by the twin wire channel universal serial bus I2C after being connect with camera
Head configuration device address；
Scheme control subelement, for controlling the camera after receiving the response message from the camera
Into operational mode.
The embodiment of the present application provides a kind of data processing system, comprising:
Such as the data processing equipment provided in the embodiment of the present application；
Connect the logic analyser of the data processing equipment and camera.
The embodiment of the present application provides a kind of data processing equipment, and control camera enters operational mode, obtains to come from and take the photograph
As the photographed data of head, valid data are determined from photographed data, image can be generated according to valid data, and show generation
Image, such staff can determine whether camera can be used according to the image of display, in initial stage of development, not need specific
Display equipment, the test to the availability of camera can be realized, this mode is convenient and efficient, low in cost, test speed
Comparatively fast.
Based on above data processing method, the embodiment of the present application also provides a kind of data processing systems, with reference to Fig. 1 institute
Show, is a kind of structural block diagram of data processing system provided by the embodiments of the present application, including data processing equipment and logic analysis
Instrument, logic analyser are used to send out the photographed data of camera for connecting data processing equipment and camera, logic analyser
It send to the connection type of data processing equipment, logic analyser and data processing equipment and camera and is stated before can referring to
Bright, data processing equipment is for executing above data processing method.
" first " in the titles such as " first ... " mentioned in the embodiment of the present application, " first ... " is used only to do name
Word mark, does not represent first sequentially.The rule is equally applicable to " second " etc..
As seen through the above description of the embodiments, those skilled in the art can be understood that above-mentioned implementation
All or part of the steps in example method can add the mode of general hardware platform to realize by software.Based on this understanding,
The technical solution of the application can be embodied in the form of software products, which can store is situated between in storage
In matter, such as read-only memory (English: read-only memory, ROM)/RAM, magnetic disk, CD etc., including some instructions to
So that a computer equipment (can be the network communication equipments such as personal computer, server, or router) executes
Method described in certain parts of each embodiment of the application or embodiment.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality
For applying example and Installation practice, since it is substantially similar to the method embodiment, so describe fairly simple, related place ginseng
See the part explanation of embodiment of the method.Equipment and system embodiment described above is only schematical, wherein making
It may or may not be physically separated for the module of separate part description, the component shown as module can be
Or it may not be physical module, it can it is in one place, or may be distributed over multiple network units.It can be with
Some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment according to the actual needs.The common skill in this field
Art personnel can understand and implement without creative efforts.
The above is only the preferred embodiment of the application, is not intended to limit the protection scope of the application.It should refer to
Out, for those skilled in the art, it under the premise of not departing from the application, can also make several improvements
And retouching, these improvements and modifications also should be regarded as the protection scope of the application.
Claims (11)
1. a kind of data processing method, which is characterized in that be applied to data processing equipment, comprising:
Control camera enters operational mode；
Obtain the photographed data from the camera；
Valid data are determined from the photographed data；
Image is generated according to the valid data, and shows described image.
2. the method according to claim 1, wherein the photographed data of the acquisition from the camera, packet
It includes:
Using the rising edge of the frame synchronizing signal of the camera as trigger signal, the photographed data from the camera is obtained.
3. the method according to claim 1, wherein the photographed data of the acquisition from the camera, packet
It includes:
The photographed data that the camera shoots actual object is obtained, or, obtaining the camera according to test image
The photographed data of generation.
4. method according to claim 1 to 3, which is characterized in that described to be determined from the photographed data
Valid data, comprising:
By the photographed data that the pixel clock signal of the camera, line synchronising signal and frame synchronizing signal are between high period
As valid data.
5. method according to claim 1 to 3, which is characterized in that the control camera enters operation mould
Formula, comprising:
It is that the camera configures device address by the twin wire channel universal serial bus I2C after being connect with camera；
After receiving the response message from the camera, controls the camera and enter operational mode.
6. a kind of data processing equipment, which is characterized in that be applied to data processing equipment, comprising:
Mode controlling unit enters operational mode for controlling camera；
Data capture unit, for obtaining the photographed data from the camera；
Data determination unit, for determining valid data from the photographed data；
Data processing unit for generating image according to the valid data, and shows described image.
7. device according to claim 6, which is characterized in that the data capture unit is specifically used for:
Using the rising edge of the frame synchronizing signal of the camera as trigger signal, the photographed data from the camera is obtained.
8. device according to claim 6, which is characterized in that the data capture unit, comprising:
First acquisition unit, the photographed data that actual object is shot for obtaining the camera；Or,
Second acquisition unit, the photographed data generated for obtaining the camera according to test image.
9. according to device described in claim 6-8 any one, which is characterized in that the data determination unit is specifically used for:
By the photographed data that the pixel clock signal of the camera, line synchronising signal and frame synchronizing signal are between high period
As valid data.
10. according to device described in claim 6-8 any one, which is characterized in that the mode controlling unit, comprising:
Address configuration unit, for being that the camera is matched by the twin wire channel universal serial bus I2C after being connect with camera
Set device address；
Scheme control subelement enters for after receiving the response message from the camera, controlling the camera
Operational mode.
11. a kind of data processing system characterized by comprising
Data processing equipment as described in claim 1-5 any one；
The logic analyser of the data processing equipment and camera is connected, the logic analyser is used for the camera
Photographed data is sent to the data processing equipment.
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| CN113297408A (en) * | 2021-06-09 | 2021-08-24 | 上海电机学院 | Image matching and scene recognition system and method based on Sift algorithm |
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