CN103152547A - Fog visual imaging equipment with high gray level value - Google Patents
Fog visual imaging equipment with high gray level value Download PDFInfo
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- CN103152547A CN103152547A CN 201110400458 CN201110400458A CN103152547A CN 103152547 A CN103152547 A CN 103152547A CN 201110400458 CN201110400458 CN 201110400458 CN 201110400458 A CN201110400458 A CN 201110400458A CN 103152547 A CN103152547 A CN 103152547A
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Abstract
The invention relates to fog visual imaging equipment with a high gray level value. The fog visual imaging equipment with the high gray level value comprises a fog visual optical processing device, an imaging processing device, an image gradation enhancing processing device and a high gray level fog visual image outputting device. The fog visual optical processing device receives target reflected light and processes the target reflected light. The imaging processing device receives the target reflected light after the target reflected light with long waves filtered by the fog visual optical processing device. After the imaging processing device conducts photovoltaic conversion and imaging process on the target reflected light, the imaging processing device outputs a fog visual image with a low gray level. The image gradation enhancing processing device receives the fog visual image with the low gray level output by the imaging processing device. After the image gradation enhancing processing device conducts enhancing process on the fog visual image, the image gradation enhancing processing device outputs a fog visual image with a high gray level. The high gray level fog visual image outputting device is connected with a central control device. The high gray level fog visual image outputting device receives the fog visual image with the high gray level output by the image gradation enhancing processing device and uploads the fog visual image with the high gray level to the central control device to be displayed and stored. The fog visual imaging equipment with the high gray level value overcomes the defect that when the existing fog visual imaging system outputs the fog visual image, the gray level value of the fog visual image is low.
Description
Technical field
The present invention relates to imaging technique, particularly relate to a kind of high gray value mist and look imaging device.
Background technology
At present, image monitoring system has been widely used the every field in social life and numerous sector applications, and video image is directly perceived, real-time, clear with it, the outstanding feature of convenient storage has obtained user's extensive approval.
Common camera (comprising high-definition camera) bright and clear, when atmospheric visibility is good, its picture quality is fine, can satisfy the requirement that people use; If but the visibility poor situations such as mist, steam, flue dust, sand and dust, haze have appearred in weather, the video image of common camera (comprising high-definition camera) will thicken unclear, the target that is observed or monitors just can't be known and distinguishes, the supervision usefulness of image will reduce, and the video monitor function of whole system just can't be brought into play its best efficiency.
Current, the fog-penetrating imaging technology be under the special weather condition to image carry out detecting and identifying the means that extensively adopt.Fog-penetration imaging system mainly is comprised of fog penetration lens, filtering video camera, Central Control Module three parts, as the CCD fog-penetration imaging system.Wherein, the filtering video camera is arranged on ad-hoc location corresponding to required observed object, and fog penetration lens is arranged on the filtering video camera, and Central Control Module is arranged in the control room of Surveillance center; Central Control Module is realized being connected by radio frequency cable with the filtering video camera.This fog-penetration imaging system has two kinds of working methods: in the situation that visibility good, fog-penetration imaging system works in the colour original mode, and this moment, fog penetration lens was in original operating state, was output as the colour original pattern; In the situation that poor visibility, fog-penetration imaging system works in the Penetrating Fog state, and this moment, fog penetration lens was in the Penetrating Fog operating state, was output as the Penetrating Fog image model.Its specific works process prescription is as follows:
When visibility good, send control command by the former figure button of pressing in the control room of Surveillance center on Central Control Module, and by 485 control cables, control command is sent to the filtering video camera, send again the filter disc switching command to fog penetration lens by the filtering video camera, this moment, fog penetration lens worked in reset condition, the filtering video camera is output as colour original, and colour original is sent to control centre by vision cable and shows.When poor visibility, send control command by the Penetrating Fog button of pressing on Central Control Module, and by 485 control cables, control command is sent to the serial port circuit of filtering video camera, send again the filter disc switching command to fog penetration lens by the filtering video camera, this moment, fog penetration lens worked in the Penetrating Fog state, the filtering video camera is output as the Penetrating Fog image, and the Penetrating Fog image is sent to control centre by vision cable and shows.
Yet existing this fog-penetration imaging system is only to adopt the method for optical treatment to reach under the special weather condition detecting and identifying to image by fog penetration lens, the definition of the Penetrating Fog image that it is exported is general, the gray value of image is lower, contrast is second-rate, therefore this fog-penetration imaging system is merely able to for some specific operational environment, as to the less demanding scene of picture quality, if operational environment has higher requirement to the quality of Penetrating Fog image, this fog-penetration imaging system just can't meet the demands.
This shows, above-mentioned existing fog-penetration imaging system obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, completed by development but have no for a long time applicable design always, and common product does not have appropriate structure to address the above problem, this is obviously the problem that the anxious wish of relevant dealer solves.Therefore high gray value mist how to found a kind of new structure is looked imaging device, real one of the current important research and development problem that belongs to, and also becoming the current industry utmost point needs improved target.
Summary of the invention
The object of the invention is to, overcome the defective that existing fog-penetration imaging system exists, and the high gray value mist that a kind of new structure is provided is looked imaging device, technical problem to be solved is to make it can export the mist view picture of high gray value when mist is looked state, improve quality and the definition of mist view picture, be very suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.Look imaging device according to a kind of high gray value mist that the present invention proposes, it comprises: a mist optometry processing unit, receiving target reflection ray; One imaging device, be connected with described mist optometry processing unit, target reflection ray after reception is filtered from described mist optometry processing unit wavelength, the described imaging device of output process carries out the low gray scale mist view image signal after opto-electronic conversion and imaging; One gradation of image strengthens processing unit, be connected with described imaging device, reception is exported the high gray scale mist view image signal after described gradation of image enhancing processing unit carries out gray scale enhancing processing from the described low gray scale mist view image signal of described imaging device; And one high gray scale mist view as output device, strengthen processing unit with described gradation of image and be connected, receive the described high gray scale mist view image signal from described gradation of image enhancing processing unit; Described high gray scale mist view also is connected with a central controller as output device, and to the high gray scale mist view image signal of described central controller output after described high gray scale mist view carries out impedance matching as output device.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid high gray value mist is looked imaging device, and wherein said mist optometry processing unit, described imaging device, described gradation of image strengthen processing unit and described high gray scale mist view connects as employing internal digital bus or analog signal line between output device.
Aforesaid high gray value mist is looked imaging device, and wherein said mist optometry processing unit is provided with the mist optometry filter disc of the described target reflection ray of filtering medium wavelength.
aforesaid high gray value mist is looked imaging device, and wherein said imaging device comprises: a photoelectric switching circuit, an analog to digital conversion circuit, an imaging processor, a D/A converting circuit and an output interface, wherein, described photoelectric switching circuit, analog-digital conversion circuit as described, described imaging processor, described D/A converting circuit and described output interface connect successively, described photoelectric switching circuit is connected with described mist optometry processing unit, target reflection ray after reception is filtered from described mist optometry processing unit wavelength, be converted into the signal of telecommunication and be sent to analog-digital conversion circuit as described, by analog-digital conversion circuit as described, the described signal of telecommunication is carried out being sent to described imaging processor after digital coding, obtain an image digital signal and be sent to described D/A converting circuit after carrying out algorithm process through described imaging processor, be converted into described low gray scale mist view image signal by described D/A converting circuit again and be sent to described output interface, described output interface strengthens processing unit with described gradation of image and is connected, described low gray scale mist view image signal is sent to described gradation of image strengthens processing unit.
aforesaid high gray value mist is looked imaging device, and wherein said gradation of image strengthens processing unit and comprises: an image acquisition circuit, a mist view are as treatment circuit, an image displaying circuit and a memory cell, wherein, described image acquisition circuit, described mist view connects successively as treatment circuit and described image displaying circuit, described memory cell is connected as treatment circuit with the mist view, described image acquisition circuit is connected with the described output interface of described imaging device, reception is from the described low gray scale mist view image signal of described imaging device, it is carried out being sent to described mist view as treatment circuit after digital coding, described mist view sends an enabling signal to described memory cell as treatment circuit simultaneously, a gray scale that makes described memory cell will reside at its inside strengthens algorithm routine and is sent to described mist view as treatment circuit, utilize described gray scale to strengthen algorithm routine by described mist view as treatment circuit and be sent to described image displaying circuit to carrying out through the image digital signal after described digital coding after gray scale strengthens processing, described image displaying circuit is connected as output device with described high gray scale mist view, image digital signal sampling after described gray scale strengthens processing is reduced to described high gray scale mist view image signal is sent to described high gray scale mist view as output device.
aforesaid high gray value mist is looked imaging device, and wherein said high gray scale mist view comprises as output device: an image input interface, an interface circuit and an image output interface, wherein, described image input interface, described interface circuit and described image output interface connect successively, described image input interface is connected with the described image displaying circuit that described gradation of image strengthens processing unit, reception is sent to described interface circuit from the described high gray scale mist view image signal that described gradation of image strengthens processing unit, by described interface circuit, it is carried out being sent to described image output interface after impedance matching, described image output interface is connected with described central controller, to the high gray scale mist view image signal of described central controller output after described impedance matching.
Aforesaid high gray value mist is looked imaging device, and wherein said image input interface is provided with the two wires binding post, and described two wires binding post is connected with described image displaying circuit by cable; Described image output interface is provided with 75 Europe digital nipples, and described 75 Europe digital nipples are connected with described central controller by digital coaxial.
The present invention compared with prior art has obvious advantage and beneficial effect.By technique scheme, the high gray value mist of the present invention is looked imaging device and had at least following advantages and beneficial effect: high gray value mist of the present invention is looked the integration technology that imaging device adopts multiple image algorithm, mainly solved the problem that in poor visibility situation common camera can not blur-free imaging, overcome the defective that Penetrating Fog gradation of image value is low, definition is relatively poor of existing CCD fog-penetration imaging system output, can adapt to different applied environment places, for the user provides high-quality mist view picture, be with a wide range of applications in practical engineering application.
In sum, the invention relates to that a kind of high gray value mist looks imaging device, it has mist optometry processing unit, imaging device, gradation of image and strengthens processing unit and high gray scale mist view as output device; Described mist optometry processing unit receiving target reflection ray carries out optical treatment, and described imaging device receives from the target reflection ray after mist optometry processing unit filtering wavelength, carries out exporting low gray scale mist view picture after opto-electronic conversion and imaging; Described gradation of image strengthens the processing unit reception from the low gray scale mist view picture of imaging device, it is carried out gray scale strengthen the high gray scale mist view picture of the rear output of processing; Described high gray scale mist view is connected with central controller as output device, receives the high gray scale mist view picture that strengthens processing unit from gradation of image and it is uploaded to central controller shows and store.The present invention has overcome existing fog-penetration imaging system low defective and deficiency of its gray value when output Penetrating Fog image.The present invention has significant progress technically, and has obvious good effect, is really a new and innovative, progressive, practical new design.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above and other purpose of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
Description of drawings
Fig. 1 is the structural representation that the high gray value mist of the present invention is looked imaging device.
Fig. 2 is the structural representation of imaging device in Fig. 1.
Fig. 3 is the structural representation that in Fig. 1, gradation of image strengthens processing unit.
Fig. 4 be in Fig. 1 high gray scale mist view as the structural representation of output device.
101: mist optometry processing unit 102: imaging device
103: gradation of image strengthens processing unit 104: high gray scale mist view is as output device
201: photoelectric switching circuit 202: analog to digital conversion circuit
203: imaging processor 204: D/A converting circuit
205: output interface 301: image acquisition circuit
302: the mist view is as treatment circuit 303: image displaying circuit
304: memory cell 401: the image input interface
402: interface circuit 403: the image output interface
Embodiment
Reach for further setting forth the present invention technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, the high gray value mist that foundation the present invention proposes is looked its embodiment of imaging device, structure, feature and effect thereof, be described in detail as follows.
Relevant aforementioned and other technology contents of the present invention, Characteristic can be known to present in the following detailed description that coordinates with reference to graphic preferred embodiment.Explanation by embodiment, should be to reach technological means and the effect that predetermined purpose takes to obtain one more deeply and concrete understanding to the present invention, yet appended graphic only be to provide with reference to the use of explanation, the present invention is limited.
Seeing also shown in Figure 1ly, is the structural representation that the high gray value mist of the present invention is looked imaging device.High gray value mist of the present invention is looked imaging device and comprised: mist optometry processing unit 101, imaging device 102, gradation of image enhancing processing unit 103 and high gray scale mist view are as output device 104.Adopt internal digital bus or analog signal line mode to connect between each device.Wherein mist optometry processing unit 101 receiving target reflection rays carry out optical treatment to it.Imaging device 102 is connected with mist optometry processing unit 101, receives the target reflection ray after filtering from mist optometry processing unit 101 wavelength, carries out exporting low gray scale mist view image signal after opto-electronic conversion and imaging.Gradation of image strengthens processing unit 103 and is connected with imaging device 102, receives the low gray scale mist view image signal from imaging device 102, carries out gray scale and strengthens the high gray scale mist view image signal of the rear output of processing.High gray scale mist view strengthens processing unit 103 as output device 104 and gradation of image and is connected, and be connected with a central controller, reception strengthens the high gray scale mist view image signal of processing unit 103 from gradation of image, carry out the backward central controller output of impedance matching.
Be provided with mist optometry filter disc in mist optometry processing unit 101 of the present invention, to realize the catoptrical wavelength filtration of target.
Seeing also shown in Figure 2ly, is the structural representation of imaging device in Fig. 1.Imaging device 102 of the present invention comprises: photoelectric switching circuit 201, analog to digital conversion circuit 202, imaging processor 203, D/A converting circuit 204 and output interface 205.Wherein, photoelectric switching circuit 201, analog to digital conversion circuit 202, imaging processor 203, D/A converting circuit 204 and output interface 205 connect successively.photoelectric switching circuit 201 is connected with mist optometry processing unit 101, target reflection ray after reception is filtered from mist optometry processing unit 101 wavelength, be converted into the signal of telecommunication and be sent to analog to digital conversion circuit 202, carrying out being sent to after digital coding imaging processor 203 by 202 pairs of signals of telecommunication of analog to digital conversion circuit carries out algorithm process and obtains an image digital signal, imaging processor 203 is sent to D/A converting circuit 204 again with this image digital signal, be converted into low gray scale mist view image signal by D/A converting circuit 204 and be sent to output interface 205, output interface 205 strengthens processing unit 103 with gradation of image and is connected, output interface 205 can be sent to this low gray scale mist view image signal gradation of image enhancing processing unit 103 and carry out gradation of image enhancing processing.
Seeing also shown in Figure 3ly, is the structural representation that in Fig. 1, gradation of image strengthens processing unit.It is key devices that high gray value mist is looked imaging device that gradation of image of the present invention strengthens processing unit 103, and it comprises: image acquisition circuit 301, mist view are as treatment circuit 302, image displaying circuit 303 and memory cell 304.Wherein, image acquisition circuit 301, mist view connect successively as treatment circuit 302 and image displaying circuit 303, and memory cell 304 is connected as treatment circuit 302 with the mist view.image acquisition circuit 301 is connected with the output interface 205 of imaging device 102, reception is from the low gray scale mist view image signal of imaging device 102, it is carried out being sent to the mist view as treatment circuit 302 after digital coding, the mist view sends an enabling signal to memory cell 304 as treatment circuit 302 simultaneously, a gray scale that makes memory cell 304 will reside at its inside strengthens algorithm routine and is sent to the mist view as treatment circuit 302, utilize gray scale to strengthen algorithm routine by the mist view as treatment circuit 302 image digital signal after described digital coding is carried out gray scale enhancing processing, picture signal after the mist view will be processed as treatment circuit 302 again is sent to image displaying circuit 303, by image displaying circuit 303, this picture signal is sampled and be reduced to high gray scale mist view image signal, image displaying circuit 303 is connected as output device 104 with high gray scale mist view, image displaying circuit 303 can send paramount gray scale mist view as output device 104 with this high gray scale mist view image signal.
See also shown in Figure 4ly, in Fig. 1, high gray scale mist view is as the structural representation of output device.High gray scale mist view of the present invention comprises as output device 104: image input interface 401, interface circuit 402 and image output interface 403.Wherein, image input interface 401, interface circuit 402 and image output interface 403 connect successively.Image input interface 401 is connected with the image displaying circuit 303 that gradation of image strengthens processing unit 103, reception is delivered to interface circuit 402 from the high gray scale mist view image signal that gradation of image strengthens processing unit 103, by interface circuit 402, it is carried out being sent to image output interface 403 after impedance matching, image output interface 403 is to be connected with central controller, to the high gray scale mist view image signal of central controller output after impedance matching.Wherein image input interface 401 is provided with the two wires binding post, and this two wires binding post is to be connected with image displaying circuit 303 by cable.Image output interface 403 is provided with 75 Europe digital nipples, and this 75 Europe digital nipple is to be connected with central controller by digital coaxial.
High gray value mist of the present invention is looked its mist view of imaging device can adopt the EP3C40F324 model FPGA of ALTERA company as treatment circuit 302, and embeds the soft-core processor of NIOS II design; Image acquisition circuit 301 can adopt the AD ADV7123 of company acquisition chip; Image displaying circuit 303 can adopt the aobvious chip of TI company's T VP5147 figure, and memory cell 304 can adopt the large capacity RAM of the ISSI IS61LV5128 of company.
the above, it is only preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet be not to limit the present invention, any those skilled in the art, within not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (7)
1. one kind high gray value mist is looked imaging device, it is characterized in that it comprises:
One mist optometry processing unit, the receiving target reflection ray;
One imaging device, be connected with described mist optometry processing unit, target reflection ray after reception is filtered from described mist optometry processing unit wavelength, the described imaging device of output process carries out the low gray scale mist view image signal after opto-electronic conversion and imaging;
One gradation of image strengthens processing unit, be connected with described imaging device, reception is exported the high gray scale mist view image signal after described gradation of image enhancing processing unit carries out gray scale enhancing processing from the described low gray scale mist view image signal of described imaging device; And
One high gray scale mist view strengthens processing unit with described gradation of image and is connected as output device, receives the described high gray scale mist view image signal that strengthens processing unit from described gradation of image; Described high gray scale mist view also is connected with a central controller as output device, and to the high gray scale mist view image signal of described central controller output after described high gray scale mist view carries out impedance matching as output device.
2. high gray value mist according to claim 1 is looked imaging device, it is characterized in that wherein said mist optometry processing unit, described imaging device, described gradation of image strengthen processing unit and described high gray scale mist view connects as employing internal digital bus or analog signal line between output device.
3. high gray value mist according to claim 2 is looked imaging device, it is characterized in that wherein said mist optometry processing unit is provided with the mist optometry filter disc that the target reflection ray is carried out the wavelength filtration.
4. high gray value mist according to claim 3 is looked imaging device, it is characterized in that wherein said imaging device comprises: a photoelectric switching circuit, an analog to digital conversion circuit, an imaging processor, a D/A converting circuit and an output interface, wherein, described photoelectric switching circuit, analog-digital conversion circuit as described, described imaging processor, described D/A converting circuit and described output interface connect successively, described photoelectric switching circuit is connected with described mist optometry processing unit, target reflection ray after reception is filtered from described mist optometry processing unit wavelength, be converted into the signal of telecommunication and be sent to analog-digital conversion circuit as described, by analog-digital conversion circuit as described, the described signal of telecommunication is carried out being sent to described imaging processor after digital coding, obtain an image digital signal and be sent to described D/A converting circuit after carrying out algorithm process through described imaging processor, be converted into described low gray scale mist view image signal by described D/A converting circuit again and be sent to described output interface, described output interface strengthens processing unit with described gradation of image and is connected, described low gray scale mist view image signal is sent to described gradation of image strengthens processing unit.
5. high gray value mist according to claim 4 is looked imaging device, and it is characterized in that wherein said gradation of image strengthens processing unit and comprises: an image acquisition circuit, a mist view are as treatment circuit, an image displaying circuit and a memory cell, wherein, described image acquisition circuit, described mist view connects successively as treatment circuit and described image displaying circuit, described memory cell is connected as treatment circuit with the mist view, described image acquisition circuit is connected with the described output interface of described imaging device, reception is from the described low gray scale mist view image signal of described imaging device, it is carried out being sent to described mist view as treatment circuit after digital coding, described mist view sends an enabling signal to described memory cell as treatment circuit simultaneously, a gray scale that makes described memory cell will reside at its inside strengthens algorithm routine and is sent to described mist view as treatment circuit, utilize described gray scale to strengthen algorithm routine by described mist view as treatment circuit and be sent to described image displaying circuit to carrying out through the image digital signal after described digital coding after gray scale strengthens processing, described image displaying circuit is connected as output device with described high gray scale mist view, image digital signal sampling after described gray scale strengthens processing is reduced to described high gray scale mist view image signal is sent to described high gray scale mist view as output device.
6. high gray value mist according to claim 5 is looked imaging device, it is characterized in that wherein said high gray scale mist view comprises as output device: an image input interface, an interface circuit and an image output interface, wherein, described image input interface, described interface circuit and described image output interface connect successively, described image input interface is connected with the described image displaying circuit that described gradation of image strengthens processing unit, reception is sent to described interface circuit from the described high gray scale mist view image signal that described gradation of image strengthens processing unit, by described interface circuit, it is carried out being sent to described image output interface after impedance matching, described image output interface is connected with described central controller, to the high gray scale mist view image signal of described central controller output after described impedance matching.
7. high gray value mist according to claim 6 is looked imaging device, it is characterized in that wherein said image input interface is provided with the two wires binding post, and described two wires binding post is connected with described image displaying circuit by cable; Described image output interface is provided with 75 Europe digital nipples, and described 75 Europe digital nipples are connected with described central controller by digital coaxial.
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| CN 201110400458 CN103152547A (en) | 2011-12-06 | 2011-12-06 | Fog visual imaging equipment with high gray level value |
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| CN 201110400458 CN103152547A (en) | 2011-12-06 | 2011-12-06 | Fog visual imaging equipment with high gray level value |
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