CN202026402U - Monitoring camera with functions of automatic focusing and image correcting - Google Patents
Monitoring camera with functions of automatic focusing and image correcting Download PDFInfo
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- CN202026402U CN202026402U CN2010206838344U CN201020683834U CN202026402U CN 202026402 U CN202026402 U CN 202026402U CN 2010206838344 U CN2010206838344 U CN 2010206838344U CN 201020683834 U CN201020683834 U CN 201020683834U CN 202026402 U CN202026402 U CN 202026402U
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Abstract
The utility model relates to a monitoring camera with the functions of automatic focusing and image correcting, which comprises a camera head, a charge coupled device (CCD) photoelectric coupling component, a video processing digital signal processor (DSP) chip, a filter disc switching device, a video output module and a power module for providing power to the entire system. The utility model has the key points that the monitoring camera with the functions of automatic focusing and image correcting also comprises a microprocessor, a filter disc driving module, an analog video signal interface module and an automatic focusing and driving module, wherein a fog image correcting module is arranged in the video processing DSP chip, the CCD photoelectric coupling component is provided with a path of analog video signal which is output to the microprocessor by the analog video signal interface module, and the automatic focusing and driving module is controlled by the microprocessor according to the processing result of the signal to drive the movement of an automatic focusing mechanism. According to the monitoring camera with the functions of automatic focusing and image correcting, the problems of non-ideal effect and influence on automatic focusing, which exist in the condition that the monitoring at a foggy day is reinforced by means of a fog-permeable filter disc in the prior art, are solved.
Description
Technical field
The utility model relates to a kind of rig camera with automatic focusing and image correction, belongs to the rig camera class.
Background technology
Video monitoring system is a kind of common security protection equipment, is widely used in places such as bank, office, road, sub-district.Rig camera is one of capital equipment of video monitoring system, in order to improve quality monitoring, make the monitoring camera function adapt to the monitoring in daytime and evening, and the various weather environments that adapt to complexity, greasy weather particularly, rainy day, the haze sky, monitoring under the environmental conditions such as flue dust, general rig camera all is equipped with the filter disc switching device shifter, described filter disc switching device shifter, generally comprise the colour filter more than two kinds, CN200820143220.X discloses a kind of such rig camera, as shown in Figure 1, in the disclosed this rig camera of CN200820143220.X, camera, the filter disc switching device shifter, the camera main frame connects successively, described camera main frame comprises CCD photoelectrical coupler and video frequency processing chip, described filter disc switching device shifter comprises color screen and Penetrating Fog filter disc, and described color screen and Penetrating Fog filter disc cooperate with the camera main frame by change over switch respectively.The disclosed this rig camera of CN200820143220.X, color screen is in order to filter invisible light, to avoid under the good situation of light invisible light to the influence of rig camera, the effect of described Penetrating Fog filter disc is to cooperate camera to monitor under ambient conditions such as greasy weather, so that bigger, obtain monitoring effect preferably under the bad situation of conventional monitoring effect at fog.
The problem that the rig camera of this band filter disc switching device shifter of prior art exists is, the simple picture quality effect that relies on the Penetrating Fog filter disc to promote the following monitoring of ambient conditions such as greasy weather is limited, particularly for slight fog is arranged, but not situation about must monitor by the Penetrating Fog filter disc, often Jian Kong video quality is the poorest, simultaneously, add that the automatic focusing to camera will affect behind the filter disc, the phenomenon that causes focus point to depart from takes place, according to preceding described, prior art has further improved necessity.
Summary of the invention
The purpose of this utility model is to provide a kind of rig camera with automatic focusing and image correction, to overcome the deficiency that prior art exists.
A kind of rig camera of the present utility model with automatic focusing and image correction, comprise camera, the CCD photoelectric coupled device, the Video processing dsp chip, the filter disc switching device shifter, video output module and the power module that power supply is provided to whole system, described filter disc switching device shifter comprises a Penetrating Fog filter disc at least, described camera images in outside scene on the CCD photoelectric coupled device by the filter disc on the described filter disc switching device shifter, the output of described CCD photoelectric coupled device is connected to the Video processing dsp chip, it is characterized in that also comprising a microprocessor, one filter disc driver module, an one analog video signal interface module and an automatic focusing driving module, and described shooting headband autofocus mechanism, the output of described microprocessor is connected to automatic focusing driving module, described microprocessor connects with the Video processing dsp chip by system bus, an analog video signal output line of described CCD photoelectric coupled device is connected to the analog video signal interface module, the output of analog video signal interface module is connected to microprocessor, described microprocessor is connected to an interactive interface module and an EPROM read-only memory simultaneously, the input of described filter disc driver module is connected to the signal output port of Video processing dsp chip, output is connected to the filter disc switching device shifter, described Video processing dsp chip is built-in with mist figure correcting module and coding and D/A converter module, and is circumscribed with second eprom memory and RAM memory.
During the utility model work, the CCD photoelectric coupled device divides two tunnel outputs, after one tunnel vision signal enters into the Video processing dsp chip, at first it is carried out correcting process by mist figure correcting module built-in in the Video processing dsp chip, forwarding coding and D/A converter module after the processing again to encodes and the digital-to-analogue conversion processing, the analog video signal of Xing Chenging is exported through the video output module at last, owing to increased special mist figure correcting module, made that the quality monitoring of the utility model under foggy environment promoted greatly.Simultaneously, mist figure correcting module in the Video processing dsp chip of the present utility model is when revising mist figure, by analysis to video image, the rank of mist that can the perception external environment condition, when the mist of external environment condition reaches certain rank, the Video processing dsp chip will be exported a control signal, this control signal can directly output to the filter disc driver module, so that the filter disc driver module drives the action of filter disc switching device shifter, the Penetrating Fog filter disc is switched on the service position, thereby also realized the automatic switchover of filter disc.
In the utility model, another road of described CCD photoelectric coupled device is output as analog video signal, this road output at first exports the analog video signal interface module to, described analog video signal interface module is taken out the high-frequency impulse value of this analog video signal, and be transported in the microprocessor, be built-in with handling procedure and corresponding standard data in the EPROM read-only memory that described microprocessor is connected to, microprocessor will compare processing by being built-in with handling procedure and the normal data high-frequency impulse value to aforesaid analog video signal in the EPROM read-only memory, in case note abnormalities output one is controlled signal to automatic focusing driving module, the automatic focusing driving module of receiving this control signal will drive the autofocus mechanism action, focus automatically.Mode is adjusted in this automatic focusing of the present utility model, owing to be that the output of CCD photoelectric coupled device is directly taken a sample, has effectively overcome the filter disc switching device shifter to the camera influence of focusing automatically for this reason.According to the above, obviously the purpose of this utility model is achieved.
As further improvement, in the utility model, described filter disc switching device shifter pastes to be paid on the wiring board of CCD photoelectric coupled device, is provided with like this and has effectively avoided when using the filter disc switching device shifter, needs rig camera is made the improved problem of structural applicability.
As further improvement, in the utility model, one output of described microprocessor is connected to the input of filter disc driver module, the purpose of She Zhiing is that on the one hand microprocessor originally just can detect all control signals that the Video processing dsp chip sends by system bus like this, send the also feasible technical scheme of action that commands for controlling filter disc driver module drives the filter disc switching device shifter by microprocessor for this reason, on the other hand, setting also provides the passage of a new control filter disc switching device shifter like this, can carry out artificial intervention by this passage to the action of filter disc switching device shifter when needed, the flexibility when helping strengthening a kind of rig camera work with automatic focusing and image correction of the present utility model like this.
As further improvement, in the utility model, described mist figure correcting module comprises brightness histogram sample analysis unit, described brightness histogram sample analysis unit is according to the some sample blocks in the built-in graphics standard taking-up image, and set up brightness histogram, this information compared as the basis revise and color correct, and serve as according to full figure is revised fast with the corrected parameter of these these blocks of school.The processing speed that improves has reduced the performance requirement to hardware so on the one hand, also makes the contrast of mist figure significantly improve simultaneously, and can show the color that disappears, and has improved identity greatly.
As further improving, the plug-in that is encoded in second eprom memory of described coding and D/A converter module output limits.The benefit of She Zhiing is like this, can control the coding and the coded system of D/A converter module by the built-in program of second eprom memory, meets the video format of user's request with output, satisfies the needs of multiple application.
Description of drawings
Fig. 1 is a kind of rig camera structural representation with automatic focusing and image correction that the utility model preferred embodiment provides.
Among the figure, 1 is camera, 2 is the CCD photoelectric coupled device, 3 is the Video processing dsp chip, 301 is mist figure correcting module, 3011 is brightness histogram sample analysis unit, 302 are coding and D/A converter module, 4 is power module, 5 is the video output module, 6 is the RAM memory, 7 is second eprom memory, 8 is the filter disc driver module, 9 is system bus, 10 is the interactive interface module, 11 is microprocessor, 12 is the filter disc switching device shifter, 121 is color screen, 122 is the Penetrating Fog filter disc, 13 is an EPROM read-only memory, 14 is the analog signal interface module, 15 is automatic focusing driving module, 16 is autofocus mechanism.
Embodiment
Below with reference to the utility model preferred embodiment provide a kind of with automatic focusing and image correction rig camera and accompanying drawing the utility model is described in further detail.
A kind of rig camera that the utility model preferred embodiment provides with automatic focusing and image correction, comprise camera 1, CCD photoelectric coupled device 2, Video processing dsp chip 3, filter disc switching device shifter 12, video output module 5 and the power module 4 that power supply is provided to whole system, described filter disc switching device shifter 12 comprises a Penetrating Fog filter disc 122 and a color screen 121, described color screen 121 mainly is in order to filter invisible light, to avoid under the good situation of light invisible light to the influence of rig camera, briefly be to allow the visible light all-pass, and all invisible lights of strainer, described Penetrating Fog filter disc 122 is the near-infrared filter disc that ends the back all-pass before a kind of wavelength 850nm in the present embodiment, and Penetrating Fog effect is preferably arranged like this.During work, described camera 1 images in outside scene on the CCD photoelectric coupled device 2 by Penetrating Fog filter disc 122 on the described filter disc switching device shifter 12 or color screen 121, the output of described CCD photoelectric coupled device 2 is connected to Video processing dsp chip 3, in this preferred embodiment, also comprise a microprocessor 11, one filter disc driver module 8, an one analog video signal interface module 14 and an automatic focusing driving module 15, and described camera 1 band autofocus mechanism 16, the output of described microprocessor 11 is connected to automatic focusing driving module 15, and connect with Video processing dsp chip 3 by system bus 9, an analog video signal output line of described CCD photoelectric coupled device 2 is connected to analog video signal interface module 14, the output of analog video signal interface module 14 is connected to microprocessor 11, described microprocessor 11 is connected to an interactive interface module 10 and an EPROM read-only memory 13 simultaneously, described interactive interface module 13 can comprise keyboard, infrared and network interface etc., can import corresponding instruction by interactive interface module 13 and give microprocessor 11, and the work by microprocessor 11 artificial control system.The input of described filter disc driver module 8 is connected to the signal output port of Video processing dsp chip 3, output is connected to filter disc switching device shifter 12, described Video processing dsp chip 3 is built-in with mist figure correcting module 301 and coding and D/A converter module 302, and is circumscribed with second eprom memory 7 and RAM memory 6.
In this preferred embodiment, the output in 2 minutes two tunnel of described CCD photoelectric coupled device, one tunnel vision signal enters into Video processing dsp chip 3 as previously mentioned, after this vision signal enters into Video processing dsp chip 3, at first it is carried out correcting process by mist figure correcting module 301 built-in in the Video processing dsp chip 3, forward coding and D/A converter module 302 after the processing again to and encode and the digital-to-analogue conversion processing, the analog video signal of Xing Chenging is through 5 outputs of video output module at last.
In this preferred embodiment, mist figure correcting module 301 in the described Video processing dsp chip 3 is when revising mist figure, by analysis to video image, the rank of mist that can the perception external environment condition, in this preferred embodiment, when the mist of external environment condition reaches the dense fog rank, Video processing dsp chip 3 will be exported a control signal, this control signal directly outputs to filter disc driver module 8, so that filter disc driver module 8 drives 12 actions of filter disc switching device shifter, Penetrating Fog filter disc 122 is switched on the service position, thereby also realized the automatic switchover of filter disc.
In the utility model, another road of described CCD photoelectric coupled device 2 is output as analog video signal, this road output at first exports analog video signal interface module 14 to, the high-frequency impulse value that described analog video signal interface module 14 is taken out this analog video signal, and be transported in the microprocessor 11, be built-in with handling procedure and corresponding standard data in the EPROM read-only memory 13 that described microprocessor 11 is connected to, microprocessor 11 will be by being built-in with handling procedure in the EPROM read-only memory 13 and normal data is handled the high-frequency impulse value of aforesaid analog video signal, in case note abnormalities output one is controlled signal to automatic focusing driving module 15, the automatic focusing driving module 15 of receiving this control signal will drive autofocus mechanism 16 actions, and focusing is adjusted.Mode is adjusted in this focusing of the present utility model, owing to be that the output of CCD photoelectric coupled device 2 is directly taken a sample, has effectively overcome the influence that 12 pairs of cameras of filter disc switching device shifter 1 focus on for this reason.
In this preferred embodiment, described filter disc switching device shifter 12 pastes to be paid on the wiring board of CCD photoelectric coupled device 2, is provided with like this and has effectively avoided when using filter disc switching device shifter 12, needs rig camera is made the improved problem of structural applicability.
In this preferred embodiment, one output of described microprocessor 11 is connected to the input of filter disc driver module 8, the purpose of She Zhiing is that on the one hand microprocessor 11 originally just can detect all control signals that Video processing dsp chip 3 sends by system bus 9 like this, send the also feasible technical scheme of action that commands for controlling filter disc driver module 8 drives filter disc switching device shifter 12 by microprocessor 11 for this reason, on the other hand, setting also provides the passage of a new control filter disc switching device shifter 12 like this, can carry out artificial intervention by this passage to the action of filter disc switching device shifter 12 when needed, help the flexibility of strengthening system like this.
In this preferred embodiment, described mist figure correcting module 301 comprises brightness histogram sample analysis unit 3011, described brightness histogram sample analysis unit 3011 is according to the some sample blocks in the built-in graphics standard taking-up image, and set up brightness histogram, this information compared as the basis revise and color correct, and serve as according to full figure is revised fast with the corrected parameter of these these blocks of school.The processing speed that improves has reduced the performance requirement to hardware so on the one hand, also makes the contrast of mist figure significantly improve simultaneously, and can show the color that disappears, and has improved identity greatly.
As further improving, the plug-in that is encoded in second eprom memory 7 of described coding and D/A converter module 302 outputs limits.The benefit of She Zhiing is like this, can control the coding and the coded system of D/A converter module by second eprom memory, 7 built-in programs, meets the video format of user's request with output, satisfies the needs of multiple application.
In sum, a kind of rig camera of the present utility model with automatic focusing and image correction, comprise camera, the CCD photoelectric coupled device, the Video processing dsp chip, the filter disc switching device shifter, video output module and the power module that power supply is provided to whole system, its main points are also to comprise a microprocessor, one filter disc driver module, an one analog video signal interface module and an automatic focusing driving module, described Video processing dsp chip is built-in with mist figure correcting module, described CCD photoelectric coupled device has one road analog video signal to output to microprocessor through the analog video signal interface module, microprocessor is to focusing according to this Signal Processing result being controlled automatic focusing driving module driving autofocus mechanism, and the utility model has solved prior art dependence Penetrating Fog filter disc and strengthened the undesirable and automatic problem of focusing of influence of effect that the greasy weather monitoring exists.
Above-mentionedly just preferred embodiment of the present utility model is illustrated and describes; but execution mode of the present utility model is not restricted to the described embodiments; as long as it reaches technique effect of the present utility model with essentially identical means, all should belong to protection range of the present utility model.
Claims (5)
1. the automatic rig camera of focusing and image correction of a band, comprise camera, the CCD photoelectric coupled device, the Video processing dsp chip, the filter disc switching device shifter, video output module and the power module that power supply is provided to whole system, described filter disc switching device shifter comprises a Penetrating Fog filter disc at least, described camera images in outside scene on the CCD photoelectric coupled device by the filter disc on the described filter disc switching device shifter, the output of described CCD photoelectric coupled device is connected to the Video processing dsp chip, it is characterized in that also comprising a microprocessor, one filter disc driver module, an one analog video signal interface module and an automatic focusing driving module, and described shooting headband autofocus mechanism, the output of described microprocessor is connected to automatic focusing driving module, and connect with the Video processing dsp chip by system bus, an analog video signal output line of described CCD photoelectric coupled device is connected to the analog video signal interface module, the output of analog video signal interface module is connected to microprocessor, described microprocessor is connected to an interactive interface module and an EPROM read-only memory simultaneously, the input of described filter disc driver module is connected to the signal output port of Video processing dsp chip, output is connected to the filter disc switching device shifter, described Video processing dsp chip is built-in with mist figure correcting module and coding and D/A converter module, and is circumscribed with second eprom memory and RAM memory.
2. a kind of rig camera with automatic focusing and image correction according to claim 1 is characterized in that described CCD photoelectric coupled device divides two tunnel outputs, wherein exports the video analog signal that is of analog video signal interface module to.
3. a kind of rig camera with automatic focusing and image correction according to claim 1 is characterized in that described filter disc switching device shifter pastes to pay on the wiring board of CCD photoelectric coupled device.
4. a kind of rig camera with automatic focusing and image correction according to claim 1 is characterized in that an output of described microprocessor is connected to the input of filter disc driver module.
5. a kind of rig camera with automatic focusing and image correction according to claim 1 is characterized in that described mist figure correcting module comprises brightness histogram sample analysis unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206838344U CN202026402U (en) | 2010-12-28 | 2010-12-28 | Monitoring camera with functions of automatic focusing and image correcting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206838344U CN202026402U (en) | 2010-12-28 | 2010-12-28 | Monitoring camera with functions of automatic focusing and image correcting |
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| CN202026402U true CN202026402U (en) | 2011-11-02 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076091A (en) * | 2013-01-25 | 2013-05-01 | 深圳市摩西尔电子有限公司 | Photographic equipment for measuring chromaticity of light source |
| CN104038669A (en) * | 2013-03-05 | 2014-09-10 | 株式会社日立制作所 | Imaging Device, Imaging System And Imaging Method |
| JP2019528658A (en) * | 2016-09-21 | 2019-10-10 | イーエスシーエィ（エレクトロニック セキュリティ オブ ザ クリエィティブ アソシエィション） シーオー．，エルティディ． | Composite filtering surveillance camera and video surveillance system using the same |
| CN110326291A (en) * | 2017-03-02 | 2019-10-11 | Esca(创意联盟电子安全)株式会社 | There is the monitoring camera of the automatic focusing function based on compound filter of robustness with the change to visibility state and using its video monitoring system |
-
2010
- 2010-12-28 CN CN2010206838344U patent/CN202026402U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076091A (en) * | 2013-01-25 | 2013-05-01 | 深圳市摩西尔电子有限公司 | Photographic equipment for measuring chromaticity of light source |
| CN103076091B (en) * | 2013-01-25 | 2015-12-09 | 深圳市摩西尔电子有限公司 | For the camera installation that Illuminant chromaticity is measured |
| CN104038669A (en) * | 2013-03-05 | 2014-09-10 | 株式会社日立制作所 | Imaging Device, Imaging System And Imaging Method |
| JP2019528658A (en) * | 2016-09-21 | 2019-10-10 | イーエスシーエィ（エレクトロニック セキュリティ オブ ザ クリエィティブ アソシエィション） シーオー．，エルティディ． | Composite filtering surveillance camera and video surveillance system using the same |
| CN110326291A (en) * | 2017-03-02 | 2019-10-11 | Esca(创意联盟电子安全)株式会社 | There is the monitoring camera of the automatic focusing function based on compound filter of robustness with the change to visibility state and using its video monitoring system |
| CN110326291B (en) * | 2017-03-02 | 2021-03-05 | Esca(创意联盟电子安全)株式会社 | Monitoring camera with automatic focusing function and video monitoring system adopting same |
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