CN107358583A - A kind of good monitoring system of monitoring performance - Google Patents

A kind of good monitoring system of monitoring performance Download PDF

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Publication number
CN107358583A
CN107358583A CN201710510377.5A CN201710510377A CN107358583A CN 107358583 A CN107358583 A CN 107358583A CN 201710510377 A CN201710510377 A CN 201710510377A CN 107358583 A CN107358583 A CN 107358583A
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China
Prior art keywords
image
detail pictures
infrared
module
substrate
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Pending
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CN201710510377.5A
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Chinese (zh)
Inventor
杨林
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Shenzhen Sen Yang Environmental Protection Mstar Technology Ltd
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Shenzhen Sen Yang Environmental Protection Mstar Technology Ltd
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Priority to CN201710510377.5A priority Critical patent/CN107358583A/en
Publication of CN107358583A publication Critical patent/CN107358583A/en
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00Image enhancement or restoration
    • G06T5/50Image enhancement or restoration by the use of more than one image, e.g. averaging, subtraction
    • G06T5/70
    • G06T5/94
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00Image coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/30Transforming light or analogous information into electric information
    • H04N5/33Transforming infrared radiation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/18Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00Indexing scheme for image analysis or image enhancement
    • G06T2207/10Image acquisition modality
    • G06T2207/10048Infrared image

Abstract

The invention provides a kind of good monitoring system of monitoring performance, including infrared detector, wireless communication module, infrared image processing device and Surveillance center, the infrared detector is used to be monitored monitor area, obtain the infrared image of HDR, the wireless communication module is used for the infrared image of acquisition by wireless network transmissions to image processing apparatus, the infrared image processing device is used to handle the infrared image of HDR, the infrared image that the Surveillance center is used for after display processing.Beneficial effects of the present invention are:Realize remote monitoring, there is provided a kind of good monitoring system of monitoring performance.

Description

A kind of good monitoring system of monitoring performance
Technical field
The present invention relates to monitoring technology field, and in particular to a kind of good monitoring system of monitoring performance.
Background technology
Infrared image monitoring technology is a kind of strong comprehensively monitoring technology of prevention ability, directly perceived, accurate, timely and interior with its Hold abundant and be applied to various occasions.With the rapid development of image procossing and transmission technology, picture control technology also obtains Huge advance.But current monitoring system is still had the problems such as can not realizing remote monitoring, monitoring performance difference.
The content of the invention
A kind of in view of the above-mentioned problems, the present invention is intended to provide good monitoring system of monitoring performance.
The purpose of the present invention is realized using following technical scheme:
A kind of good monitoring system of monitoring performance is provided, including at infrared detector, wireless communication module, infrared image Device and Surveillance center are managed, the infrared detector is used to be monitored monitor area, obtains the infrared figure of HDR Picture, the wireless communication module is used for the infrared image of acquisition by wireless network transmissions to image processing apparatus, described red Outer image processing apparatus is used to handle the infrared image of HDR, after the Surveillance center is used for display processing Infrared image.
Beneficial effects of the present invention are:Realize remote monitoring, there is provided a kind of good monitoring system of monitoring performance.
Brief description of the drawings
Using accompanying drawing, the invention will be further described, but the embodiment in accompanying drawing does not form any limit to the present invention System, for one of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to the following drawings Other accompanying drawings.
Fig. 1 is the structural representation of the present invention;
Reference:
Infrared detector 1, wireless communication module 2, infrared image processing device 3, Surveillance center 4.
Embodiment
The invention will be further described with the following Examples.
Referring to Fig. 1, a kind of good monitoring system of monitoring performance of the present embodiment, including infrared detector 1, radio communication mold Block 2, infrared image processing device 3 and Surveillance center 4, the infrared detector 1 are used to be monitored monitor area, obtain high The infrared image of dynamic range, the wireless communication module 2 are used for the infrared image of acquisition by wireless network transmissions to figure As processing unit, the infrared image processing device 3 is used to handle the infrared image of HDR, in the monitoring The infrared image that the heart 4 is used for after display processing.
The present embodiment realizes remote monitoring, there is provided a kind of good monitoring system of monitoring performance.
Preferably, the Surveillance center 4 includes the more display devices for being used for infrared image after display processing.
This preferred embodiment can be monitored to many places monitor area simultaneously.
Preferably, the display device is high-clear display.
The high definition that this preferred embodiment realizes monitoring image shows that monitoring performance is greatly improved.
Preferably, the infrared image processing device 3 includes picture breakdown module, image compression module, Image Enhancement Based Block and image co-registration module, described image decomposing module are used to the infrared image of HDR being decomposed into substrate image and thin Image is saved, described image compression module is used to carry out substrate image high dynamic range compression processing, described image enhancing module For detail pictures to be carried out with small dynamic range extension and details enhancing processing, after described image Fusion Module is used for processing Substrate image and detail pictures are merged, the infrared image after output fusion.
Infrared image is decomposed into substrate image and detail pictures by the present embodiment infrared image processing device, for substrate figure Picture, the high dynamic range compression of contrast holding is carried out, for detail pictures, carry out small dynamic extension and details enhancing, While completing the compression of Larger Dynamic range digital image, the contrast of small dynamic temperature difference details is improved.Solves infrared acquisition In following problem:On the one hand, it is the detectivity and detection range of raising infrared system, it is desirable to which sensor improves as far as possible The exponent number and FOV of search of quantization, this just produces the imaging of HDR;On the other hand, the perceived tiny temperature difference occupies ash Degree level is seldom, and local contrast and signal to noise ratio are just lower in the scene of Larger Dynamic scope.
Preferably, described image decomposing module includes the first image acquisition unit and the second image acquisition unit, and described One image acquisition unit is used for the substrate image for obtaining the infrared image of HDR, and second image acquisition unit is used for Obtain the detail pictures of the infrared image of HDR:
The substrate image of the infrared image of HDR is obtained by following steps:Step 1, to the red of HDR Outer image carries out preliminary treatment:F (x, y)=MH5×5{MH5×5[fin(x, y)] }, in formula, MH5×5[fin(x, y)] represent with 5 × 5 windows are to fin(x, y) carries out median filter process, fin(x, y) represents original input picture, and f (x, y) is represented to high dynamic The infrared image of scope carries out the image after preliminary treatment;
Step 2, image is decomposed, obtain substrate image:
In formula In, fo(x, y) represents the substrate image after decomposing, and L (x, y) represents the neighborhood of pixel (x, y),Expression standard deviation is σ1's Gauss low frequency filter, for carrying out the weighting of space length to pixel in neighborhood,Expression standard deviation is σ2Gaussian function, For carrying out the weighting of Gray homogeneity to pixel in neighborhood;
Detail pictures are obtained in the following manner:fd(x, y)=f (x, y)-fo(x, y), in formula, fd(x, y) is represented Detail pictures after decomposition.
What this preferred embodiment picture breakdown modular belt came specifically has the beneficial effect that:First image acquisition unit passes through secondary Median filter process, the salt-pepper noise in original image can be removed, prevent the noise leakage of physical presence inside detector from arriving It is enhanced in details composition, the influence of bad point and noise in enhancing image is effectively reduced, using fo(x, y) obtains substrate figure Picture, while the space length and Gray homogeneity of pixel are considered, extracted advantage of this is that can either control in IR Scene Minimized radiation difference, and can enough avoid to high-contrast edges carry out excess smoothness.
Preferably, described image compression module is handled substrate image using following formula: In formula, STo(x, y) represents to carry out substrate image Image after the high dynamic range compression processing that contrast is kept, μ (x, y) represent the gray scale neighborhood averaging value of pixel (x, y), ρ Represent contrast control parameter, fav(x, y) is that the image that Gaussian smoothing convolution obtains is carried out to substrate image.
This preferred embodiment sets image compression module to handle substrate image, sets contrast control parameter, uses In the holding degree for controlling local contrast in high dynamic range compression, by Reasonable adjustment contrast control parameter, can obtain To preferable local contrast enhancing effect, the substrate image of high quality is obtained.
Preferably, described image enhancing module is handled detail pictures using following formula:
In formula, PL represents detail pictures entropy, and it is general that p (i) represents that the pixel of i-th of gray level occurs in detail pictures Rate,Represent all pixels gray level average in detail pictures, STd(x, y) represents to carry out detail pictures in the figure after enhancing processing Picture, μ and σ represent the global average and variance of detail pictures, μ respectivelyx,yAnd σx,yRepresent respectively detail pictures any pixels (x, Y) average and variance in 5 × 5 local neighborhoods.
This preferred embodiment sets image enhancement module to be handled to detail pictures, during the entropy difference of image, adopts Detail pictures are handled with different modes, it is possible to increase the actual effect of enhancing, the violent fluctuating of image background is adapted to, Obtain the detail pictures of high quality.
Preferably, described image Fusion Module includes preparatory unit and integrated unit, and the preparatory unit is used for processing Substrate image and detail pictures afterwards carries out fusion pre-treatment, and the integrated unit is used for the substrate image after fusion pre-treatment Merged with detail pictures;
Fusion pre-treatment is carried out to the substrate image after processing and detail pictures is specially:To STo(x, y) and STd(x,y) Carry out fusion pre-treatment: In formula, CFo(x, y) represents STo(x, y) carries out the result after fusion pre-treatment, CFd(x, y) represents STdBefore (x, y) fusion Result after processing;
Substrate image after fusion pre-treatment and detail pictures are merged specially:To CFo(x, y) and CFd(x,y) Merged:EU (x, y)=(1-2β)CFo(x,y)+2βCFd(x, y), in formula, β expression fusion coefficients, 0<eβ<1, in place In the output of wide W bit, the dynamic range series that substrate image is occupied is (1-2β)·2W, dynamic range that detail pictures are occupied Series is 2β·2W, the image after EU (x, y) expression fusions.
This preferred embodiment image co-registration module is to STo(x, y) and STd(x, y) is handled, and takes full advantage of whole ash Level scope is spent, two-part result is subjected to dynamic range distribution and fusion, it is achieved thereby that infrared image high dynamic range Confined pressure contracts and details enhancing, is advantageous to improve monitoring level.
It is monitored using the good monitoring system of monitoring performance of the present invention, chooses 5 monitoring scenes, and compiled respectively and be Scene 1, scene 2, scene 3, scene 4 and scene 5, monitoring cost and monitoring security are analyzed, compared with monitoring system Compare, it is caused to have the beneficial effect that shown in table:
Monitoring cost reduces Security is monitored to improve
Scene 1 23% 21%
Scene 2 25% 20%
Scene 3 24% 19%
Scene 4 27% 22%
Scene 5 24% 23%
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected The limitation of scope is protected, although being explained with reference to preferred embodiment to the present invention, one of ordinary skill in the art should Work as understanding, technical scheme can be modified or equivalent substitution, without departing from the reality of technical solution of the present invention Matter and scope.

Claims (7)

1. the good monitoring system of a kind of monitoring performance, it is characterised in that including infrared detector, wireless communication module, infrared figure As processing unit and Surveillance center, the infrared detector is used to be monitored monitor area, obtains the red of HDR Outer image, the wireless communication module are used for the infrared image of acquisition by wireless network transmissions to image processing apparatus, institute State infrared image processing device to be used to handle the infrared image of HDR, the Surveillance center is used for display processing Infrared image afterwards.
2. the good monitoring system of monitoring performance according to claim 1, it is characterised in that the Surveillance center includes more Display device for infrared image after display processing.
3. the good monitoring system of monitoring performance according to claim 2, it is characterised in that the display device shows for high definition Show device.
4. the good monitoring system of monitoring performance according to claim 3, it is characterised in that the infrared image processing device Including picture breakdown module, image compression module, image enhancement module and image co-registration module, described image decomposing module is used for The infrared image of HDR is decomposed into substrate image and detail pictures, described image compression module is used for substrate image High dynamic range compression processing is carried out, described image enhancing module is used to carry out small dynamic range extension and details to detail pictures Enhancing is handled, and described image Fusion Module is used to merge the substrate image after processing and detail pictures, after output fusion Infrared image.
5. the good monitoring system of monitoring performance according to claim 4, it is characterised in that described image decomposing module includes First image acquisition unit and the second image acquisition unit, described first image acquiring unit are used to obtain the red of HDR The substrate image of outer image, second image acquisition unit are used for the detail pictures for obtaining the infrared image of HDR:
The substrate image of the infrared image of HDR is obtained by following steps:Step 1, the infrared figure to HDR As carrying out preliminary treatment:F (x, y)=MH5×5{MH5×5[fin(x, y)] }, in formula, MH5×5[fin(x, y)] represent with 5 × 5 Window is to fin(x, y) carries out median filter process, fin(x, y) represents original input picture, and f (x, y) is represented to HDR Infrared image carry out preliminary treatment after image;
Step 2, image is decomposed, obtain substrate image:
In formula, fo(x, y) represents the substrate image after decomposing, and L (x, y) represents the neighborhood of pixel (x, y),Expression standard deviation is σ1Height This low pass filter, for carrying out the weighting of space length to pixel in neighborhood,Expression standard deviation is σ2Gaussian function, use Pixel carries out the weighting of Gray homogeneity in neighborhood;
Detail pictures are obtained in the following manner:fd(x, y)=f (x, y)-fo(x, y), in formula, fd(x, y) represents to decompose Detail pictures afterwards.
6. the good monitoring system of monitoring performance according to claim 5, it is characterised in that described image compression module uses Following formula is handled substrate image:In formula, STo (x, y) represents to carry out substrate image the image after the high dynamic range compression processing of contrast holding, and μ (x, y) represents pixel The gray scale neighborhood averaging value of (x, y), ρ represent contrast control parameter, fav(x, y) is to carry out Gaussian smoothing convolution to substrate image Obtained image;
Described image enhancing module is handled detail pictures using following formula:
In formula, PL represents detail pictures entropy, and it is general that p (i) represents that the pixel of i-th of gray level occurs in detail pictures Rate,Represent all pixels gray level average in detail pictures, STd(x, y) represents to carry out detail pictures in the figure after enhancing processing Picture, μ and σ represent the global average and variance of detail pictures, μ respectivelyx,yAnd σx,yRepresent respectively detail pictures any pixels (x, Y) average and variance in 5 × 5 local neighborhoods.
7. the good monitoring system of monitoring performance according to claim 6, it is characterised in that described image Fusion Module includes Preparatory unit and integrated unit, the preparatory unit are used to the substrate image after processing and detail pictures are carried out merging preceding place Reason, the integrated unit are used to merge the substrate image after fusion pre-treatment and detail pictures;
Fusion pre-treatment is carried out to the substrate image after processing and detail pictures is specially:To STo(x, y) and STd(x, y) is carried out Merge pre-treatment: In formula, CFo(x, y) represents STo(x, y) carries out the result after fusion pre-treatment, CFd(x, y) represents STdLocate before (x, y) fusion Result after reason;
Substrate image after fusion pre-treatment and detail pictures are merged specially:To CFo(x, y) and CFd(x, y) is carried out Fusion:EU (x, y)=(1-2β)CFo(x,y)+2βCFd(x, y), in formula, β expression fusion coefficients, 0<eβ<1, in bit wide W ratios In special output, the dynamic range series that substrate image is occupied is (1-2β)·2W, the dynamic range series that detail pictures are occupied is 2β·2W, the image after EU (x, y) expression fusions.
CN201710510377.5A 2017-06-28 2017-06-28 A kind of good monitoring system of monitoring performance Pending CN107358583A (en)

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