CN105245776A - Method for realizing programmable control of software imaging - Google Patents
Method for realizing programmable control of software imaging Download PDFInfo
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- CN105245776A CN105245776A CN201510623493.9A CN201510623493A CN105245776A CN 105245776 A CN105245776 A CN 105245776A CN 201510623493 A CN201510623493 A CN 201510623493A CN 105245776 A CN105245776 A CN 105245776A
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Abstract
The invention discloses a method for realizing programmable control of software imaging. The method comprises the following steps of adopting a CCD (Charge Coupled Device) camera to collect an optical image of software imaging in real time, adopting a video signal module to convert the collected optical image to a video signal of an analog image, and meanwhile, carrying out line frame separation on the optical image collected by the CCD camera to complete line synchronization and line frame synchronization; adopting a band-pass filter to filter high-frequency noise of the video signal and a low-frequency signal; adopting an A/D converter to convert the filtered video analog signal to a video digital signal to carry out data processing; and driving a rotating direction of a step motor through a CPLD (Complex Programmable Logic Device) module according to the received video digital signal under the control of line synchronization and frame synchronization to change a focal length of the CCD camera so as to obtain a clear image and realize programmable control of software imaging.
Description
Technical field
The present invention relates to a kind of programmable control method, particularly relate to one and can realize the programmable control method of software Graphicsization, belong to programmable control field.
Background technology
Microscope is widely used in every field, is a kind of common optical instrument.Automation equipment, intelligentized development are had higher requirement to microscopical automaticity, are badly in need of Automatic Control microscopic system in application.The core of Automatic Control microscopic system is Techniques of Automatic Focusing, and therefore how effectively realizing microscopical automatic focus becomes the key issue improving Microtomographic Analysis System performance, realize high-acruracy survey.
Microscope focus method mainly can be divided into two large classes at present: a class is confocal laser method.It utilizes laser beam to form point-source of light through illumination pin hole, scans, the illuminated point on sample, in the imaging of exploration hole place, received, form fluoroscopic image on the computer screen rapidly by the photomultiplier after exploration hole the every bit of focal plane in sample.The method complexity is high, not easily realizes.Another kind of method realizes automatic focus by the feature such as acutance, edge of focal plane image and non-focal plane image, as used the evaluation functions such as absolute variance function, plane differential sum of squares function, shade of gray operator function, gray scale difference point-score, energy spectrum function, wavelet transformation, Luo Baici operator, Laplacian, the method requires high to hardware process speed, therefore further develops certain limitation to it.
Summary of the invention
Technical problem to be solved by this invention provides one for the deficiency of background technology can realize the programmable control method of software Graphicsization.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
One can realize the programmable control method of software Graphicsization, specifically comprises following steps:
Step 1, adopts the optical imagery of CCD camera Real-time Collection software Graphics;
Step 2, adopts vision signal module the optical imagery of collection to be converted to the vision signal of analog image, the optical imagery of CCD camera collection is carried out the separation of row frame simultaneously, and then completes capable synchronous and row frame synchronization;
Step 3, adopts band pass filter to filter high-frequency noise and the low frequency signal of vision signal;
Step 4, adopts A/D converter to convert the video analog signal after filtration to video signal, and then carries out data processing;
Step 5, under the control of the synchronous and frame synchronization of being expert at, according to the rotation direction of the video signal received by CPLD module drive stepping motor, the focal length of change CCD camera, thus obtain image clearly and realize the programmable control of software Graphicsization.
As a kind of further preferred version realizing the programmable control method of software Graphicsization of the present invention, the chip model of described CCD camera is DGT-004.
As a kind of further preferred version realizing the programmable control method of software Graphicsization of the present invention, described micro controller module adopts ARM series monolithic.
As a kind of further preferred version realizing the programmable control method of software Graphicsization of the present invention, the chip model of described A/D converter is ML14433.
As a kind of further preferred version realizing the programmable control method of software Graphicsization of the present invention, the chip model of described stepping motor is 86BYG.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1, the vision signal of analog image is converted to digital picture by the present invention, but directly intercept the analog video signal of each point, carry out real-time analysis and process, obtain the criteria parameter whether image correctly focuses on, provide feedback signal, control the direction of motion of motor, regulating system makes it to be in correct focus state, realizes automatic focus.Enormously simplify the process of image procossing, shorten the automatic focus time;
2, the present invention realizes microscopical quick focusing by the structure improving focusing algorithm and change hardware circuit, thus improves the precision of microscope focusing; The present invention adopts ARM series monolithic to improve the reliability of system, and specificity is strong, low in energy consumption;
3, the present invention is compared to prior art, described band pass filter, can obtain adjustable transmission zero being less than centre frequency place, provide good band-rejected effect, and low insertion loss, size are little, cost of manufacture is low, meets the demand of wireless communications application completely.
Accompanying drawing explanation
Fig. 1 is method flow diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
As shown in Figure 1, one can realize the programmable control method of software Graphicsization, specifically comprises following steps:
Step 1, adopts the optical imagery of CCD camera Real-time Collection software Graphics;
Step 2, adopts vision signal module the optical imagery of collection to be converted to the vision signal of analog image, the optical imagery of CCD camera collection is carried out the separation of row frame simultaneously, and then completes capable synchronous and row frame synchronization;
Step 3, adopts band pass filter to filter high-frequency noise and the low frequency signal of vision signal;
Step 4, adopts A/D converter to convert the video analog signal after filtration to video signal, and then carries out data processing;
Step 5, under the control of the synchronous and frame synchronization of being expert at, according to the rotation direction of the video signal received by CPLD module drive stepping motor, the focal length of change CCD camera, thus obtain image clearly and realize the programmable control of software Graphicsization.
Wherein, the chip model of described CCD camera is DGT-004, and described micro controller module adopts ARM series monolithic, and the chip model of described A/D converter is ML14433, and the chip model of described stepping motor is 86BYG.
The present invention's employing ARM7 replaces computer, because its software is not be stored in the carriers such as disk, but is solidificated in memory chip, can response external time rapidly, also substantially increase the reliability of system, and specificity is strong simultaneously, low in energy consumption.The present invention is compared to prior art, and described band pass filter, can obtain adjustable transmission zero being less than centre frequency place, provide good band-rejected effect, and low insertion loss, size are little, cost of manufacture is low, meets the demand of wireless communications application completely.
The present invention with based on Digital Image Processing compared with the microscope auto focusing method of analysis, this method does not need the vision signal of analog image to be converted to digital picture, but directly intercept the analog video signal of each point, carry out real-time analysis and process, obtain the criteria parameter whether image correctly focuses on, provide feedback signal, control the direction of motion of motor, regulating system makes it to be in correct focus state, realizes automatic focus.This just enormously simplify the process of image procossing, shortens the automatic focus time.
The present invention is using the ARM7 chip LPC2132 development board that is core as development platform, and transplant μ C/OS-II operating system and realize multitasking, the vision signal of direct cut-away view picture processes in real time, obtain the criteria parameter of figure image focu, greatly improve focusing speed, compared with traditional method, in native system measured target by CCD simulate camera be expert at synchronous and frame synchronization control under, optical imagery is converted to the vision signal of analog image, high-frequency noise and low frequency signal is filtered through band pass filter, leave the high-frequency signal that whether clear representative image is, directly input the A/D port of ARM7, signal is gathered, process, the focal plane state of judgement system, and result is exported to CPLD, CPLD then carrys out the rotation direction of Driving Stepping Motor according to the pwm control signal of ARM7 input, change the focal length of CCD camera, thus obtain the most clearly image realize automatic focus.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.By reference to the accompanying drawings embodiments of the present invention are explained in detail above, but the present invention is not limited to above-mentioned execution mode, in the ken that those of ordinary skill in the art possess, makes a variety of changes under can also or else departing from the prerequisite of present inventive concept.
Claims (5)
1. can realize the programmable control method of software Graphicsization, it is characterized in that: specifically comprise following steps:
Step 1, adopts the optical imagery of CCD camera Real-time Collection software Graphics;
Step 2, adopts vision signal module the optical imagery of collection to be converted to the vision signal of analog image, the optical imagery of CCD camera collection is carried out the separation of row frame simultaneously, and then completes capable synchronous and row frame synchronization;
Step 3, adopts band pass filter to filter high-frequency noise and the low frequency signal of vision signal;
Step 4, adopts A/D converter to convert the video analog signal after filtration to video signal, and then carries out data processing;
Step 5, under the control of the synchronous and frame synchronization of being expert at, according to the rotation direction of the video signal received by CPLD module drive stepping motor, the focal length of change CCD camera, thus obtain image clearly and realize the programmable control of software Graphicsization.
2. one according to claim 1 can realize the programmable control method of software Graphicsization, it is characterized in that: the chip model of described CCD camera is DGT-004.
3. one according to claim 1 can realize the programmable control method of software Graphicsization, it is characterized in that: described micro controller module adopts ARM series monolithic.
4. one according to claim 1 can realize the programmable control method of software Graphicsization, it is characterized in that: the chip model of described A/D converter is ML14433.
5. one according to claim 1 can realize the programmable control method of software Graphicsization, it is characterized in that: the chip model of described stepping motor is 86BYG.
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| CN201510623493.9A CN105245776A (en) | 2015-09-25 | 2015-09-25 | Method for realizing programmable control of software imaging |
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| CN201510623493.9A CN105245776A (en) | 2015-09-25 | 2015-09-25 | Method for realizing programmable control of software imaging |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113779755A (en) * | 2021-08-05 | 2021-12-10 | 中科联芯(广州)科技有限公司 | Design method of silicon-based multispectral integrated circuit chip and integrated circuit chip |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113779755A (en) * | 2021-08-05 | 2021-12-10 | 中科联芯(广州)科技有限公司 | Design method of silicon-based multispectral integrated circuit chip and integrated circuit chip |
| CN113779755B (en) * | 2021-08-05 | 2023-11-17 | 中科联芯(广州)科技有限公司 | Design method of silicon-based multispectral integrated circuit chip and integrated circuit chip |
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Application publication date: 20160113 |