CN203630777U - Performance evaluation device of infrared image capturing and processing system - Google Patents
Performance evaluation device of infrared image capturing and processing system Download PDFInfo
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- CN203630777U CN203630777U CN201320838133.7U CN201320838133U CN203630777U CN 203630777 U CN203630777 U CN 203630777U CN 201320838133 U CN201320838133 U CN 201320838133U CN 203630777 U CN203630777 U CN 203630777U
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Abstract
The utility model provides a performance evaluation device of an infrared image capturing and processing system. The performance evaluation device comprises a control unit and a processing unit. The control unit comprises an image loading module, an image processing module and a main control module, the image loading module is used for loading infrared images which are not degraded, the image processing module converts an infrared image file to a waveform data file through the infrared image processing technology, and the waveform data file is used as a data source of for performance evaluation of the infrared image capturing and processing system. The main control module is connected with the processing unit. The performance evaluation device has the advantages of being high in automation, high in reliability, low in cost, simple in operation and use, and high in universality, and not only can analog data signals and digital data signals at the pin end of a detector be simulated, but also can output frame, line and pixel synchronous signals corresponding to the data signals and SHD and SHP synchronous signals under the dual-sampling mode at the same time.
Description
Technical field
The utility model belongs to infrared image acquisition and processing technology field, in particular a kind of infrared image acquisition and disposal system Performance Evaluation device.
Background technology
At present, infrared imagery technique has been widely used in the every field such as military affairs, industry, agricultural, medical treatment and scientific research.Infrared imaging system mainly comprises infrared optical system, infrared detector and infrared image acquisition thereof and disposal system, infrared image acquisition and disposal system are the key components of infrared imaging system, and its performance quality has directly determined the overall performance of infrared imaging system.In infrared image acquisition and disposal system Performance Evaluation, need carry out training and testing with a large amount of different conditions infrared images.If directly using infrared detector to obtain image by range test carries out Performance Evaluation and has significant limitation.The one, development, the buying etc. of infrared eye can affect the Development Schedule of infrared image acquisition and disposal system; The 2nd, due to can not disposable being successfully completed to the test of system, need to repeatedly plug sensitive detection parts and come the performance of test macro, can bring risk to sensitive detection parts like this; The 3rd, the uncertainty of front end light path system function can cause the uncertainty of rear end infrared image acquisition and disposal system test.The 4th, infrared image acquisition will expend long time and a large amount of manpower and materials, be difficult in addition obtain the infrared image under various meteorological conditions, and the infrared image of many military targets is to be also difficult to photograph.So how effectively to assess infrared image acquisition and disposal system performance tanglewracks always, the general effective device and method of neither one meets evaluation requirement.Therefore, need a kind of general infrared eye programmable analog device badly, can simulate range detector signal, especially the device and method of its picture output signal carries out Performance Evaluation to infrared image acquisition and disposal system.
In infrared detector output signal simulation, existing two kinds of technical schemes are close with this programme, wherein a kind of scheme as shown in Figure 1, the implementation procedure of whole system: call corresponding infrared simulation view data by application program from field trial infrared picture data storehouse, infrared simulation view data is write host memory by host driver, then notify FPGA that the infrared simulation view data in PC internal memory is read by pci bus, and write in SDRAM, finally from SDRAM, read again infrared simulation view data and agreement according to the rules by FPGA and send to the infrared real time signal processing platform of rear class.Because this system is that pci interface (or USB interface) by computing machine is injected into Infrared Scene image in detector simulation device, must be equipped with fixing host computer, and cannot outputting analog signal.As shown in Figure 2, computer program can be selected by RS232 serial ports control detector simulation device the image of the different resolutions such as output 128 × 128,256 × 256,320 × 256 to the functional block diagram of another detector simulation device scheme.The view data source of detector simulation device has two: one is automatically to generate the uniform background image of a width by simulator, and another is real scene shooting scene or emulation generating scene to be downloaded and are cured to the Flash storer of detector simulation device inside from computing machine by serial ports.Detection simulation device has been realized the simulation to true detector IO interface, can in the time that some infrared imaging system processors are debugged for the first time, replace infrared imaging sensor, when infrared imaging system processor is broken down, be unlikely to damage expensive infrared imaging detector.But still must be equipped with computing machine, and use serial ports, its transmission speed is subject to very big impact.
To sum up two kinds of technical schemes, existing infrared imaging detector Simulator design is all simple, simple for providing the consideration of image data source to design for infrared signal processing platform, they all must be equipped with fixing host computer, do not there is integrated feature, all do not consider detector impact on image in imaging process yet, can not be according to the clear and definite parameter detector of true Infrared Scene, degraded image, in the Performance Evaluation test to infrared image acquisition and disposal system, there is significant limitation.
Owing to belonging to military, there are certain concerning security matters, so have no report in the external Performance Evaluation about infrared image acquisition and disposal system.Domestic also only have the hardware that minority universities and colleges or research institution have designed some infrared imaging detector simulators to realize; these design frameworks are substantially similar; all by the pci interface of computing machine, Infrared Scene image to be injected in detector simulation device; detector simulation device carries out exporting according to the demand of infrared real time signal processing platform after buffer memory and sequential arrangement to image, therefore all has a lot of limitation.First, major part is all simple, simple for providing the consideration of image data source to design for infrared signal processing platform, does not consider the simulation of relevant IR parameters (as noise parameter); Secondly, versatility is poor, and parameter detector adjustability is limited, as analog signal output narrow dynamic range, array scale selection is few, output frequency is non-adjustable, without defects such as the synchronous outputs of view data; And existing infrared imaging detector simulator is all the function that fixing host computer outfit data processing platform (DPP) realizes simulator, implementing inconvenience in carrying, does not have integrated feature.
Therefore, there is defect in prior art, needs to improve.
Utility model content
Technical problem to be solved in the utility model is for the deficiencies in the prior art, and a kind of infrared image acquisition and disposal system Performance Evaluation device are provided.
The technical solution of the utility model is as follows:
A kind of infrared image acquisition and disposal system Performance Evaluation device, comprise control module and processing unit; Wherein, described control module comprises image loading module, image processing module and main control module; Described image loading module, for loading without the infrared image of degenerating; Described image processing module is converted to Wave data file by infrared image processing technology by infrared image file, as the data source of infrared image acquisition and disposal system Performance Evaluation; Described main control module is connected with processing unit; Described main control module, for described processing unit is controlled, complete the setting of image waveform transformation, waveform demonstration and editor, the frequency that sensitive detection parts scale, output signal are set, amplitude, frame horizontal blanking interval, sync signal delay time according to default infrared image degradation model, editor's Wave data.
Described apparatus for evaluating, wherein, described processing unit comprises the first processing unit and the second processing unit; Described the first processing unit, for high precision, the low-jitter clock signal of the generation of DPLL clock and programmable clock distribution module generation out of phase, under the effect of clock signal, synchronizing signal module, according to the requirement of main control module, is exported D/A control signal, frame, row, pixel, CDS synchronizing signal; Described the second processing unit, for frame, row, pixel, CDS synchronizing signal are inputted through interface circuit, under sync signal delay module synchronous, through DAC module and memory module outputting analog signal.
Described apparatus for evaluating, wherein, described the first processing unit comprises that DPLL clock occurs and programmable clock distribution module, synchronizing signal generation module, synchronization delay module, memory module and DAC module; Described DPLL clock occurs and programmable clock distribution module is NBC12429 chip, for generation of high precision, the low-jitter clock signal of out of phase; Described synchronizing signal module is under the effect of clock signal, according to the requirement of described main control module, output D/A control signal, frame, row, pixel, CDS synchronizing signal, provide synchronizing signal for the output of synchronous analog signal and for infrared image acquisition and disposal system; Described sync signal delay module is synchronizeed simulating signal with CDS synchronizing signal, eliminate the impact of outputting analog signal through memory module, DAC module transmission delay; Described memory module is eeprom memory, in order to Wave data storage; Described DAC module is digital analog converter, for realizing the conversion of digital quantity-analog quantity.
Described apparatus for evaluating, wherein, described the second processing unit comprises interface circuit, sync signal delay module, DAC module and memory module; Described interface circuit is used for the pixel of external world's input, frame, row, CDS synchronous transmission of signal to sync signal delay module; Described sync signal delay module is synchronizeed simulating signal with CDS synchronizing signal, eliminate the impact of outputting analog signal through memory module, DAC module transmission delay; Described memory module is eeprom memory, in order to Wave data storage; Described DAC module is digital analog converter, for realizing the conversion of digital quantity-analog quantity.
Described apparatus for evaluating, wherein, described sync signal delay module, for simulating signal is synchronizeed with synchronizing signal, eliminates the impact of outputting analog signal through the transmission delay of storer, DAC conversion etc., final outputting analog signal.
Adopt such scheme, form with instrumentation is promoted, there is automaticity high, reliability is high, cost is low, operation is used simple, highly versatile, extensibility, the features such as maintainability and productibility, analog data signal and digital data signal that can not only analog prober leads ends, can export the frame corresponding with data-signal simultaneously, OK, SHD under pixel synchronizing signal and correlated-double-sampling pattern and SHP synchronizing signal, also can input related synchronization signal and carry out analog signal output, there is the simulation of infrared image noise parameter simultaneously, array scale is adjustable, output voltage amplitude is adjustable, frequency is adjustable, synchronizing signal phase relation is adjustable, numerical data is synchronizeed the functions such as output with simulated data, greatly strengthen its versatility.This technical optimization the appraisal procedure of infrared image acquisition and disposal system, fill up the blank of China aspect infrared weaponry system testing, for China provides strong technical guarantee in the development of infrared data ' s acquisition system related industry.
Brief description of the drawings
Fig. 1 is the pouring-in simulation of infrared detector service system of digital picture block diagram in prior art.
Fig. 2 is infrared eye simulator functional block diagram in prior art.
Fig. 3 is the utility model infrared eye programmable analog device theory diagram.
Embodiment (before reference, revision is mended instructions, is mended by me)
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Embodiment 1
As shown in Figure 3, a kind of infrared image acquisition and disposal system Performance Evaluation device 10, comprise control module 101 and processing unit 102; Wherein, described control module comprises image loading module, image processing module and main control module; Described image loading module, for loading without the infrared image of degenerating; Described image processing module is converted to Wave data file by infrared image processing technology by infrared image file, as the data source of infrared image acquisition and disposal system Performance Evaluation; Described main control module is connected with processing unit; Described main control module, for described processing unit is controlled, complete the setting of image waveform transformation, waveform demonstration and editor, the frequency that sensitive detection parts scale, output signal are set, amplitude, frame horizontal blanking interval, sync signal delay time according to default infrared image degradation model, editor's Wave data.
Described apparatus for evaluating, wherein, described processing unit comprises the first processing unit 201 and the second processing unit 202; Described the first processing unit 201, for high precision, the low-jitter clock signal of the generation of DPLL clock and programmable clock distribution module generation out of phase, under the effect of clock signal, synchronizing signal module, according to the requirement of main control module, is exported D/A control signal, frame, row, pixel, CDS synchronizing signal; Described the second processing unit 202, for frame, row, pixel, CDS synchronizing signal are inputted through interface circuit, under sync signal delay module synchronous, through DAC module and memory module outputting analog signal.
Described the first processing unit 201 comprises that DPLL clock occurs and programmable clock distribution module, synchronizing signal generation module, synchronization delay module, memory module and DAC module; Described DPLL clock occurs and programmable clock distribution module is NBC12429 chip, for generation of high precision, the low-jitter clock signal of out of phase; Described synchronizing signal module is under the effect of clock signal, according to the requirement of described main control module, output D/A control signal, frame, row, pixel, CDS synchronizing signal, provide synchronizing signal for the output of synchronous analog signal and for infrared image acquisition and disposal system; Described sync signal delay module is synchronizeed simulating signal with CDS synchronizing signal, eliminate the impact of outputting analog signal through memory module, DAC module transmission delay; Described memory module is eeprom memory, in order to Wave data storage; Described DAC module is digital analog converter, for realizing the conversion of digital quantity-analog quantity.
Described the second processing unit 202 comprises interface circuit, sync signal delay module, DAC module and memory module; Described interface circuit is used for the pixel of external world's input, frame, row, CDS synchronous transmission of signal to sync signal delay module; Described sync signal delay module is synchronizeed simulating signal with CDS synchronizing signal, eliminate the impact of outputting analog signal through memory module, DAC module transmission delay; Described memory module is eeprom memory, in order to Wave data storage; Described DAC module is digital analog converter, for realizing the conversion of digital quantity-analog quantity.
Described sync signal delay module, for simulating signal is synchronizeed with synchronizing signal, eliminates the impact of outputting analog signal through the transmission delay of storer, DAC conversion etc., final outputting analog signal.
The utility model also provides the appraisal procedure of a kind of infrared image acquisition and disposal system Performance Evaluation device based on said apparatus, wherein, comprise the following steps:
Step 1: set up the image degradation model based on target under various complex environments and disturbed condition and background Infrared Scene;
Step 2: by man-machine interface and main control module Load Images and adopt image processing techniques that image is converted to Wave data fast, the Wave data of conversion is stored in memory module; Editor's waveform parameter, analog device scale, the frequency of output signal, amplitude, frame horizontal blanking interval, sync signal delay time;
Step 3: master control module controls DPLL clock occurs and programmable clock distribution module produces accurate clock, from memory module, take out Wave data by accurate clock, control circuit for generating synchronous signals simultaneously and produce and the corresponding frame of Wave data, row, pixel and CDS synchronizing signal; Or input pixel, frame, row, CDS synchronizing signal from the external world by interface circuit;
Step 4: on the basis of the phase relation between control frame, row, pixel, CDS synchronizing signal and simulating signal, the simulating signal that synchronous output waveform data converts to;
Step 5: convert the simulating signal of output to gray level image, obtain the infrared degraded image that a width degradation model is known, change waveform output parameter by main control module, obtain infrared degraded image arbitrarily, using infrared degraded image as infrared image acquisition and the data source of disposal system, utilize the degradation model that infrared image is corresponding to process image, by contrasting image after treatment and without the infrared radiation source image of degenerating, assessing the handling property of infrared image acquisition and disposal system.
In described step 1, described degradation model arrange degeneration original image, rediscover Infrared Scene, rebuild the image of being degenerated or restore the image of being degenerated.
Described degradation model is stack thermonoise, shot noise, generation recombination noise, 1/f noise, radiation or photon noise or pixel cross-talk.
In described step 5, described output waveform is the piece image of serial output, each clock is set and represents a pixel, and high level representation signal is set, low level represents background, utilizes gradation of image grade principle, by the ceiling voltage corresponding grey scale value 255 of waveform, the minimum voltage corresponding grey scale value 0 of waveform, waveform modelling pixel any one magnitude of voltage between high level and low level, will be by the corresponding corresponding gray-scale value of linear relationship.
Adopt such scheme, can generate the infrared degraded image matching with true Infrared Scene as assessment test data source, and be programmable data simulation, frequency analog signal that such as image is corresponding, detector scale, detector out-put dynamic range etc., simultaneously integrated the synchronize output of simulated data with digital data signal on interface, structurally make integrated desktop computer pattern, really accomplished versatility and the practicality of simulator.So just, can solve current infrared image acquisition and a disposal system Performance Evaluation test difficult problem, reduce assessment testing cost, shorten the assessment test duration, optimize assessment method of testing.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (4)
1. infrared image acquisition and a disposal system Performance Evaluation device, comprise control module and processing unit; It is characterized in that, described control module comprises image loading module, image processing module and main control module; Described image loading module, for loading without the infrared image of degenerating; Described image processing module is converted to Wave data file by infrared image processing technology by infrared image file, as the data source of infrared image acquisition and disposal system Performance Evaluation; Described main control module is connected with processing unit; Described main control module, for described processing unit is controlled, complete the setting of image waveform transformation, waveform demonstration and editor, the frequency that sensitive detection parts scale, output signal are set, amplitude, frame horizontal blanking interval, sync signal delay time according to default infrared image degradation model, editor's Wave data.
2. apparatus for evaluating as claimed in claim 1, is characterized in that, described processing unit comprises the first processing unit and the second processing unit; Described the first processing unit, for high precision, the low-jitter clock signal of the generation of DPLL clock and programmable clock distribution module generation out of phase, under the effect of clock signal, synchronizing signal module, according to the requirement of main control module, is exported D/A control signal, frame, row, pixel, CDS synchronizing signal; Described the second processing unit, for frame, row, pixel, CDS synchronizing signal are inputted through interface circuit, under sync signal delay module synchronous, through DAC module and memory module outputting analog signal.
3. apparatus for evaluating as claimed in claim 2, is characterized in that, described the first processing unit comprises that DPLL clock occurs and programmable clock distribution module, synchronizing signal generation module, synchronization delay module, memory module and DAC module; Described DPLL clock occurs and programmable clock distribution module is NBC12429 chip, for generation of high precision, the low-jitter clock signal of out of phase; Described synchronizing signal module is under the effect of clock signal, according to the requirement of described main control module, output D/A control signal, frame, row, pixel, CDS synchronizing signal, provide synchronizing signal for the output of synchronous analog signal and for infrared image acquisition and disposal system; Described sync signal delay module is synchronizeed simulating signal with CDS synchronizing signal, eliminate the impact of outputting analog signal through memory module, DAC module transmission delay; Described memory module is eeprom memory, in order to Wave data storage; Described DAC module is digital analog converter, for realizing the conversion of digital quantity-analog quantity.
4. apparatus for evaluating as claimed in claim 2, is characterized in that, described the second processing unit comprises interface circuit, sync signal delay module, DAC module and memory module; Described interface circuit is used for the pixel of external world's input, frame, row, CDS synchronous transmission of signal to sync signal delay module; Described sync signal delay module is synchronizeed simulating signal with CDS synchronizing signal, eliminate the impact of outputting analog signal through memory module, DAC module transmission delay; Described memory module is eeprom memory, in order to Wave data storage; Described DAC module is digital analog converter, for realizing the conversion of digital quantity-analog quantity.
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| CN201320838133.7U CN203630777U (en) | 2013-12-18 | 2013-12-18 | Performance evaluation device of infrared image capturing and processing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103678196A (en) * | 2013-12-18 | 2014-03-26 | 中国电子科技集团公司第四十一研究所 | Device and method for evaluating performance of infrared image collecting and processing system |
| CN108022199A (en) * | 2017-12-20 | 2018-05-11 | 南通使爱智能科技有限公司 | A kind of artificial intelligence infrared image processing instrument |
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- 2013-12-18 CN CN201320838133.7U patent/CN203630777U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103678196A (en) * | 2013-12-18 | 2014-03-26 | 中国电子科技集团公司第四十一研究所 | Device and method for evaluating performance of infrared image collecting and processing system |
| CN103678196B (en) * | 2013-12-18 | 2016-10-05 | 中国电子科技集团公司第四十一研究所 | A kind of infrared image acquisition and processing system capability evaluating device and appraisal procedure |
| CN108022199A (en) * | 2017-12-20 | 2018-05-11 | 南通使爱智能科技有限公司 | A kind of artificial intelligence infrared image processing instrument |
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