CN104156188A - High-frame-frequency infrared scene generating and outputting system and method - Google Patents
High-frame-frequency infrared scene generating and outputting system and method Download PDFInfo
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Abstract
The invention provides a high-frame-frequency infrared scene generating and outputting system and method. The system comprises an infrared scene generating computer, a system monitoring displayer and a scene outputting converting module. An infrared scene generated by the infrared scene generating computer in a real-time-rendering mode is subjected to software splicing processing and is output to the scene outputting converting module through a video card in a low-frame-frequency standard format. In the module, an FPGA main controller decodes and arranges received data anew, the data are output in a user-defined format according to the sequence of originally-generated high-frame-frequency scenes, the problem that an existing infrared scene generating system cannot generate and output high-frame-frequency infrared scenes is solved, the system can be widely used in various complex environments, and maintaining is easy.
Description
Technical field
The invention belongs to technical field of image processing, relate to a kind of Infrared scene generation and output system, particularly a kind of high frame frequency Infrared scene generation and output system and method.
Background technology
At present, Infrared Scene has obtained application very widely in civilian and military every field.Conventionally adopt following two kinds of methods to generate Infrared Scene:
1) utilize infrared eye to obtain Infrared Scene;
2) utilize computer software to play up generation Infrared Scene.
Day by day frequently make generation and the output to Infrared Scene of the moving object detection under Infrared Scene and other concrete application trend towards high frame frequency.
Infrared eye itself can generate the Infrared Scene of higher frame frequency, but its cost is high, be difficult to maintenance, each time infrared eye is switched on for a long time and repeated upper and lower electricity operation all can cause damage to detector itself, directly affect the performance of detector, reduce its life-span; The method of utilizing computer software to play up generation Infrared Scene can reduce cost greatly, but because computer display card has fixing data output format, makes the defeated Infrared Scene not out of high frame frequency of this method.
Summary of the invention
The object of the invention is to overcome prior art defect, a kind of high frame frequency Infrared scene generation and output system and the method for low cost, high frame frequency, the output of employing general-purpose interface is provided.
For achieving the above object, the technical solution used in the present invention is:
A kind of high frame frequency Infrared scene generation and output system, be made up of Infrared scene generation computing machine, system monitoring display and scene output modular converter; Infrared scene generation computing machine provides the Infrared Scene of real-time rendering, high frame frequency Infrared Scene on time dimension is decomposed into the Infrared Scene of several low frame rates of Spatial Dimension, is simultaneously displayed on system monitoring display and outputs to scene output modular converter; On the other hand, Infrared scene generation computing machine is the control command of system, and the output-index of Infrared Scene sends to scene output modular converter by RS422 serial ports, and communicates; System monitoring display changes into the real time status of Spatial Dimension low frame rate Infrared Scene in order to the high frame frequency Infrared Scene in monitoring period dimension, and provides man-machine interaction display interface for system setting; Scene output modular converter is made up of MCU module, FPGA master controller, DDR2-SDRAM cache module, scene input receiver module and scene output module; MCU module receives and resolves from the control command of Infrared scene generation computing machine transmission and the output-index of Infrared Scene by RS422 serial ports, order and achievement data after resolving are sent to FPGA master controller by EMIF interface, receive the system status information that FPGA master controller returns simultaneously and this information exchange is crossed to RS422 serial ports and transmit back Infrared scene generation computing machine; FPGA master controller is responsible for for different Infrared Scene output-indexes, the low frame rate Infrared Scene on the Spatial Dimension from Infrared scene generation computer export split, and the high frame frequency Infrared Scene in rise time dimension, and control output; DDR2-SDRAM cache module is for carrying out buffer memory the Infrared Scene data of FPGA master controller processing procedure; Scene input receiver module is used for the serial infrared contextual data form of Infrared scene generation computer export to be decoded into parallel Infrared Scene data layout, and passes to FPGA master controller; Scene output module is for exporting general high frame frequency Infrared Scene form.
Described scene input receiver module input interface is DVI interface or HDMI interface.
Described system monitoring display is connected with Infrared scene generation computing machine by DVI interface or VGA interface.
A kind of high frame frequency Infrared scene generation and output intent, is characterized in that comprising the following steps:
1) to export resolution and the frame frequency of Infrared Scene by system monitoring display selective system, and the output-index communication of this Infrared Scene is exported to modular converter to scene;
2) set and finish rear Infrared scene generation computing machine real-time rendering Infrared Scene, and the high frame frequency Infrared Scene on time dimension is decomposed into the Infrared Scene of several low frame rates of Spatial Dimension, allow each two field picture of Infrared scene generation computer display card output all comprise the Infrared Scene image that M frame real-time rendering generates, M >=1;
3) scene output modular converter receives the Infrared Scene signal that the transmission of Infrared scene generation computer display card comes, and parses valid data, and is buffered in DDR2-SDRAM cache module;
4) scene output modular converter according to Infrared Scene the position relationship in every frame video card output image, the Infrared Scene of discrete low frame rate is read out successively from DDR2-SDRAM cache module to the continuous Infrared Scene of the high frame frequency of formatted output as requested;
5), when receiving ceasing and desisting order of sending from Infrared scene generation computing machine, scene output modular converter stops scene output;
6) if desired continue to generate Infrared Scene, scene output modular converter repeating step 1) to 5) operation.
Described step 1) in treat that scene output modular converter powers on after, to the instruction of shaking hands of its transmitting system, correct if it returns to response instruction, show to shake hands successfully, otherwise shake hands unsuccessfully, enter false alarm; After successfully shaking hands, at resolution and the frame frequency that will export Infrared Scene by system monitoring display selective system, and the output-index communication of this Infrared Scene is exported to modular converter to scene.
The video card output of described Infrared scene generation computing machine is set as replication mode, and a road video card is exported to system monitoring display, and another road video card is exported to scene output modular converter.
Described two-way video card output resolution ratio is all set as 1440*900, and frame frequency is all set as 60fps, Infrared scene generation computing machine real-time rendering generates the Infrared Scene of the 600fps of 128*128 resolution, be f1 according to numeric sorting the 600 frame scene sequences that generate a second, f2, f3, f4f598, f599, f600, start from the upper left corner of 1440*900 resolution frame figure according to " Z " font to each scene areas numbering, be followed successively by 1, 2, 358, 59, 60, export this 600 frame scene to scene output modular converter according to the output frame frequency 60fps of Infrared scene generation computer display card, the Infrared Scene that each frame video card output image comprises 10 frame real-time renderings, scene output modular converter is the position relationship in every frame video card output image according to above-mentioned Infrared Scene, the Infrared Scene of discrete low frame rate is read out successively from DDR2-SDRAM, FPGA master controller is read respectively f1 in video card output the 1st frame to f10 from DDR2-SDRAM, f11 in video card output the 2nd frame is to f20, f591 in video card output the 60th frame is to f600, then according to the continuous Infrared Scene of the high frame frequency of the order of f1, f2, f3f598, f599, f600 formatted output as requested.
The present invention compared with prior art tool has the following advantages
1, the present invention is by Infrared scene generation computing machine, system monitoring display and scene output modular converter composition, apparatus structure is reasonable, realize simple, easy operating is with low cost, by Infrared scene generation computing machine, the high frame frequency Infrared Scene on time dimension is decomposed into the Infrared Scene of several low frame rates of Spatial Dimension, then export modular converter by scene low frame rate Infrared Scene is split to the high frame frequency Infrared Scene output in rise time dimension, solve the problem that existing Infrared scene generation system could generate and export the Infrared Scene of high frame frequency, can be widely used in various complex environments, and maintenance easily.
If 2, the Infrared scene generation computing machine two-way video card output resolution ratio 1440*900 of system of the present invention, the Infrared Scene frame frequency that can effectively export can be up to 1000fps@128*128, and output format can be according to User Defined.
Brief description of the drawings
Fig. 1 is system architecture diagram of the present invention;
Fig. 2 is Infrared scene generation computer software workflow diagram of the present invention;
Fig. 3 is the frame figure schematic diagram of video card output 1440*900 resolution in the present invention;
Fig. 4 is Scene output modular converter workflow diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, high frame frequency Infrared scene generation and output system, be made up of Infrared scene generation computing machine, system monitoring display, scene output modular converter:
Infrared scene generation computing machine provides the Infrared Scene of real-time rendering on the one hand for system, high frame frequency Infrared Scene on time dimension is decomposed into the Infrared Scene of several low frame rates of Spatial Dimension, and be presented on system monitoring display, output to scene output modular converter simultaneously; On the other hand the control command of system, and the output-index of Infrared Scene, as Infrared Scene resolution, frame frequency, communicates by RS422 serial ports and scene output modular converter.
System monitoring display is connected with Infrared scene generation computing machine by DVI interface or VGA interface, the high frame frequency Infrared Scene of system monitoring display on can monitoring period dimension changes into the real time status of Spatial Dimension low frame rate Infrared Scene, and provides man-machine interaction display interface for system setting.
Scene output modular converter is by MCU module, FPGA master controller, DDR2-SDRAM cache module, scene input receiver module, and scene output module composition.MCU module is received and is resolved the control command and the Infrared Scene output-index that send from Infrared scene generation computing machine by RS422 serial ports, order and achievement data after resolving are sent to FPGA master controller by EMIF interface, receive the system status information that FPGA controller returns simultaneously and this information exchange is crossed to RS422 serial ports and transmit back Infrared scene generation computing machine; FPGA master controller is responsible for for different Infrared Scene output-indexes, the low frame rate Infrared Scene on the Spatial Dimension from Infrared scene generation computing machine split, and the high frame frequency Infrared Scene in rise time dimension, and control output; DDR2-SDRAM cache module is for carrying out buffer memory the Infrared Scene data of FPGA master controller processing procedure; The effect of scene input receiver module in system is that the serial infrared contextual data form of Infrared scene generation computer export is decoded into parallel Infrared Scene data layout, and passes to FPGA master controller, is DVI or HDMI at native system Scene input interface; Scene output module is for exporting general high frame frequency Infrared Scene form, and this output format can be self-defined.
As shown in Figure 2, in the present invention, Infrared scene generation computer software workflow is:
1) after treating that scene output modular converter powers on, to the instruction of shaking hands of its transmitting system, correct if it returns to response instruction, show to shake hands successfully, otherwise shake hands unsuccessfully, enter false alarm;
2) successfully shake hands and will export resolution and the frame frequency of Infrared Scene in software interface selective system afterwards, and the output-index communication of this Infrared Scene is exported to modular converter to scene;
3) set and finish rear Infrared scene generation computing machine generate Infrared Scene according to resolution and frame frequency requirement real-time rendering in system work process, high frame frequency Infrared Scene on time dimension is decomposed into the Infrared Scene of several low frame rates of Spatial Dimension, allow each two field picture of Infrared scene generation computer display card output all comprise the Infrared Scene image that M (M >=1) frame real-time rendering generates, be simultaneously displayed on system monitoring display;
4) when user selects to stop Infrared scene generation, software quits work, and sends and cease and desist order to scene output modular converter;
5) if user need to continue to generate Infrared Scene, software repeating step 1) to 3).
Further, set Infrared scene generation computer display card and be output as replication mode, a road video card is exported to system monitoring display, and another road video card is exported to scene output modular converter.Two-way video card output resolution ratio is all set as 1440*900, and frame frequency is all set as 60fps.Infrared scene generation computing machine needed will export by software interface selective system resolution and the frame frequency of Infrared Scene before output Infrared Scene, and now with resolution 128*128, frame frequency 600fps is example.Infrared scene generation computing machine real-time rendering generates the Infrared Scene of the 600fps of 128*128 resolution, is f1, f2, f3, f4f598, f599, f600 according to numeric sorting the 600 frame scene sequences that generate a second.Final this 600 frame scene all will export scene output modular converter to according to the output frame frequency 60fps of Infrared scene generation computer display card, that is to say that each two field picture of video card output all must comprise the Infrared Scene of 10 frame real-time renderings.
As shown in Figure 3, for the frame figure schematic diagram of video card output 1440*900 resolution in the present invention, under such resolution, laterally can hold the frame figure of 1440/128=11.25 128*128 resolution, in like manner longitudinally can hold the frame figure of 900/128=7.03125 128*128 resolution, but for the frame figure that makes each 128*128 resolution has obvious boundary, between adjacent 128*128 resolution frame figure, leave the gap of 15 pixels, so laterally longitudinally just can only hold respectively the frame figure of 10 and 6 128*128 resolution.Be under current 1440*900 resolution, the output of the video card of every frame 1440*900 can be held at most 60 of the scenes of 128*128 resolution.If the free relevance of the scene of these 60 128*128 resolution, the highest theoretical frame frequency information that can export of system is 60*60fps=3600fps so in the above conditions, but these data also depend on the ability of Infrared scene generation computing machine real-time rendering and output, actually can not reach so high.
For resolution 128*128, the example of frame frequency 600fps only need to take first 10 of 60 scene areas in the resolution of 1440*900, see content in accompanying drawing 3 dotted line frames, Infrared scene generation computing machine is per second in the time of output 1-60 frame standard format image, the f (10n+1) of 600 frame Infrared Scene that plays up generation need to be assigned to respectively to front 10 regions of 60 scene areas in the resolution of 1440*900 to f (10n+10) frame scene graph, now export corresponding to the video card of 1-60 frame, the span of n is 0 to 59, that is: corresponding to the 1st frame video card output, f1 is assigned to respectively scene areas 1 to 10 to f10, corresponding to the 60th frame video card output, f591 to 600 is assigned to respectively scene areas 1 to 10.
As shown in Figure 4, scene output modular converter workflow is:
1) after system powers on, wait to receive the handshake sending from Infrared scene generation computing machine, carry out handshake response;
2) receive the scene resolution and the frame frequency information that send from Infrared scene generation computing machine, carry out configuration and the initialization of inner parameter;
3) receive Infrared scene generation computer display card and transmit and next Infrared Scene signal, parse valid data, and be buffered among DDR2-SDRAM;
4) position relationship in every frame video card output image according to above-mentioned Infrared Scene, the Infrared Scene of discrete low frame rate is read out successively from DDR2-SDRAM, still for above-mentioned resolution 128*128, the example of frame frequency 600fps, FPGA master controller is read respectively f1 in video card output the 1st frame to f10 from DDR2-SDRAM, f11 in video card output the 2nd frame is to f20, f591 in video card output the 60th frame is to f600, then according to f1, f2, f3f598, f599, the continuous Infrared Scene of the high frame frequency of formatted output that the order of f600 requires according to user,
5), when receiving ceasing and desisting order of sending from Infrared scene generation computing machine, scene output modular converter stops scene output;
6) if user need to continue to generate Infrared Scene, scene output modular converter repeating step 1) to 5) operation.
In described scene output modular converter, FPGA selects XC6SLX16 chip; MCU selects STC15L2K08S2 chip; DDR2-SDRAM selects MT47H128M16-25 chip.The DVI decoding chip of selecting in above-mentioned scene input receiver module is TFP401APZP; HDMI decoding chip is ADV7612.
Because the output of computer display card is all set form, and general video card can not export the view data of high frame frequency, so the thought of the high frame frequency Infrared Scene of this system Infrared scene generation computer export is:
By Infrared scene generation computing machine real-time rendering Infrared Scene, and the high frame frequency Infrared Scene on time dimension is decomposed into the Infrared Scene of several low frame rates of Spatial Dimension; Then export modular converter by scene and receive the Infrared Scene signal that the transmission of Infrared scene generation computer display card comes, and be buffered in DDR2-SDRAM cache module; Finally, scene output modular converter is the position relationship in every frame video card output image according to Infrared Scene, the Infrared Scene of discrete low frame rate is read out successively from DDR2-SDRAM cache module, the continuous Infrared Scene of the high frame frequency of formatted output as requested, meets the requirement of high frame frequency Infrared Scene output.
The above, it is only better case study on implementation of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with better implementation method, but not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the method for above-mentioned announcement and technology contents to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, still belong in the scope of technical solution of the present invention.
Claims (7)
1. high frame frequency Infrared scene generation and an output system, is characterized in that: be made up of Infrared scene generation computing machine, system monitoring display and scene output modular converter;
Infrared scene generation computing machine provides the Infrared Scene of real-time rendering, high frame frequency Infrared Scene on time dimension is decomposed into the Infrared Scene of several low frame rates of Spatial Dimension, is simultaneously displayed on system monitoring display and outputs to scene output modular converter; On the other hand, Infrared scene generation computing machine is the control command of system, and the output-index of Infrared Scene sends to scene output modular converter by RS422 serial ports, and communicates;
System monitoring display changes into the real time status of Spatial Dimension low frame rate Infrared Scene in order to the high frame frequency Infrared Scene in monitoring period dimension, and provides man-machine interaction display interface for system setting;
Scene output modular converter is made up of MCU module, FPGA master controller, DDR2-SDRAM cache module, scene input receiver module and scene output module; MCU module receives and resolves from the control command of Infrared scene generation computing machine transmission and the output-index of Infrared Scene by RS422 serial ports, order and achievement data after resolving are sent to FPGA master controller by EMIF interface, receive the system status information that FPGA master controller returns simultaneously and this information exchange is crossed to RS422 serial ports and transmit back Infrared scene generation computing machine; FPGA master controller is responsible for for different Infrared Scene output-indexes, the low frame rate Infrared Scene on the Spatial Dimension from Infrared scene generation computer export split, and the high frame frequency Infrared Scene in rise time dimension, and control output; DDR2-SDRAM cache module is for carrying out buffer memory the Infrared Scene data of FPGA master controller processing procedure; Scene input receiver module is used for the serial infrared contextual data form of Infrared scene generation computer export to be decoded into parallel Infrared Scene data layout, and passes to FPGA master controller; Scene output module is for exporting general high frame frequency Infrared Scene form.
2. high frame frequency Infrared scene generation according to claim 1 and output system, is characterized in that: described scene input receiver module input interface is DVI interface or HDMI interface.
3. high frame frequency Infrared scene generation according to claim 1 and output system, is characterized in that: described system monitoring display is connected with Infrared scene generation computing machine by DVI interface or VGA interface.
4. high frame frequency Infrared scene generation and the output intent based on claim 1 system, is characterized in that comprising the following steps:
1) to export resolution and the frame frequency of Infrared Scene by system monitoring display selective system, and the output-index communication of this Infrared Scene is exported to modular converter to scene;
2) set and finish rear Infrared scene generation computing machine real-time rendering Infrared Scene, and the high frame frequency Infrared Scene on time dimension is decomposed into the Infrared Scene of several low frame rates of Spatial Dimension, allow each two field picture of Infrared scene generation computer display card output all comprise the Infrared Scene image that M frame real-time rendering generates, M >=1;
3) scene output modular converter receives the Infrared Scene signal that the transmission of Infrared scene generation computer display card comes, and parses valid data, and is buffered in DDR2-SDRAM cache module;
4) scene output modular converter according to Infrared Scene the position relationship in every frame video card output image, the Infrared Scene of discrete low frame rate is read out successively from DDR2-SDRAM cache module to the continuous Infrared Scene of the high frame frequency of formatted output as requested;
5), when receiving ceasing and desisting order of sending from Infrared scene generation computing machine, scene output modular converter stops scene output;
6) if desired continue to generate Infrared Scene, scene output modular converter repeating step 1) to 5) operation.
5. high frame frequency Infrared scene generation according to claim 4 and output intent, it is characterized in that: described step 1) in treat that scene output modular converter powers on after, to the instruction of shaking hands of its transmitting system, if it is correct that it returns to response instruction, show to shake hands successfully, otherwise shake hands unsuccessfully, enter false alarm; After successfully shaking hands, to export again resolution and the frame frequency of Infrared Scene by system monitoring display selective system, and the output-index communication of this Infrared Scene is exported to modular converter to scene.
6. high frame frequency Infrared scene generation according to claim 4 and output intent, it is characterized in that: the video card output of described Infrared scene generation computing machine is set as replication mode, one road video card is exported to system monitoring display, and another road video card is exported to scene output modular converter.
7. high frame frequency Infrared scene generation according to claim 6 and output intent, is characterized in that: described two-way video card output resolution ratio is all set as 1440*900, and frame frequency is all set as 60fps, Infrared scene generation computing machine real-time rendering generates the Infrared Scene of the 600fps of 128*128 resolution, be f1 according to numeric sorting the 600 frame scene sequences that generate a second, f2, f3, f4f598, f599, f600, start from the upper left corner of 1440*900 resolution frame figure according to " Z " font to each scene areas numbering, be followed successively by 1, 2, 358, 59, 60, export this 600 frame scene to scene output modular converter according to the output frame frequency 60fps of Infrared scene generation computer display card, the Infrared Scene that each frame video card output image comprises 10 frame real-time renderings,
Scene output modular converter is the position relationship in every frame video card output image according to above-mentioned Infrared Scene, the Infrared Scene of discrete low frame rate is read out successively from DDR2-SDRAM, FPGA master controller is read respectively f1 in video card output the 1st frame to f10 from DDR2-SDRAM, f11 in video card output the 2nd frame is to f20, f591 in video card output the 60th frame is to f600, then according to the continuous Infrared Scene of the high frame frequency of the order of f1, f2, f3f598, f599, f600 formatted output as requested.
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| CN111050120A (en) * | 2019-11-12 | 2020-04-21 | 中国船舶重工集团公司第七0九研究所 | Non-refrigeration type medium-long wave infrared video communication method and system |
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| CN111050120A (en) * | 2019-11-12 | 2020-04-21 | 中国船舶重工集团公司第七0九研究所 | Non-refrigeration type medium-long wave infrared video communication method and system |
| CN111050120B (en) * | 2019-11-12 | 2021-07-09 | 中国船舶重工集团公司第七0九研究所 | Non-refrigeration type medium-long wave infrared video communication method and system |
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