CN102740057B - A kind of image determination method for city illumination facility and device - Google Patents
A kind of image determination method for city illumination facility and device Download PDFInfo
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Abstract
The object of the invention: propose a kind of based on image analysis method, especially for realization and the application of city illumination facility Intelligent Measurement.And for a set of more rational equipment of the method design.To this, the present invention includes a kind of image determination method for city illumination facility and device, comprise the following steps, step one: the image for city illumination arranges control presetting bit; Step 2: obtain live video stream from video camera; Step 3: extract relevant lighting installation image feature amount; Step 4: adopt balance image processing method to analyze the characteristic quantity extracted; Step 5: display is record analysis result also; Have employed above method the present invention to analyze by carrying out rationalization to the data gathered in service end, energy Real Time Monitoring front end live video stream, comprehensively average obtained value, adopt the mode of database purchase to store obtained value, compare realize one in a big way in systematicness illumination monitor, sampling analysis is more accurate.
Description
Technical field:
The present invention relates to the method and apparatus of process image, especially a kind of image determination method for city illumination facility and device.
Background technology:
Adopt the method for analyzing and detecting to be successfully applied to industry-by-industry, comprise security protection boundary defence, behavioural analysis, recognition of face, mechanical assistance control, product diagnosis etc.; Along with technological improvement, replacing human eye to complete back work by this kind of analytical method becomes possibility.
Usually, when needs are monitored for city illumination facility operation situation, manager utilizes existing video monitoring to adopt the mode of patrol to differentiate city illumination facility operation situation; But for a large amount of video monitoring quantity, simple employing manual type is carried out remote browse and can not be met gerentocratic demand.Therefore we need to design a kind of brand-new monitoring method, and the device coordinating this new method to adopt.Could meet the growing demand in city like this.In prior art, the utility model patent " a kind of area lighting detector " being 201020185622.3 as application number also discloses a kind of area lighting detector, for detecting the luminous flux in the region irradiated by lighting apparatus, comprise illumination module, data recordin module, data transmission blocks, wherein, described illumination module, is connected with described data recordin module, and the luminous flux that measurement current region obtains also notifies described data recordin module; Described data recordin module, is connected with data transmission blocks with described data recordin module, records described luminous flux and corresponding with the mark in described region, passes to described data transmission blocks; Described data transmission blocks, is connected with described data recordin module, is sent the mark in described luminous flux and described region by wired or wireless mode.This utility model can monitor the working condition of the lighting apparatus of current field of illumination in real time, and prompting keeper safeguard in time.Such device is very effective checkout gear, but if will be used for the control of the city overall situation, then needs further equipment coupling, and rational data analysing method.Regrettably, in prior art, do not provide these contents, need us to grope voluntarily.
Summary of the invention:
The object of the invention: propose a kind of based on image analysis method, especially for realization and the application of city illumination facility Intelligent Measurement.And for a set of more rational equipment of the method design.
To this, the present invention includes a kind of image determination method for city illumination facility, said method comprising the steps of,
Step one: the image for city illumination arranges control presetting bit;
Step 2: obtain live video stream from video camera;
Step 3: extract relevant lighting installation image feature amount;
Step 4: adopt balance image processing method to analyze the characteristic quantity extracted;
Step 5: display is record analysis result also;
Wherein, the employing balance image processing method described in step 4 extracts characteristic quantity and refers to employing image binaryzation associated sensing space, and the methods of carrying out three summations obtain end value; Equation models function is used to describe:
T0＝{(T1-T2)*k1+(T2-T3)*k2}/3；
Wherein, T0 obtains average results for finally effectively analyzing; T1 is the rgb value of the first surveyed area; T2 is the peripheral surveyed area RGB mean value of T1 indication; T3 is all RGB mean value in visual angle; K1 is the coefficient of the corresponding region area gained of rgb value; K2 is detection coefficient in effective area of detection;
According to above model, calculate this city illumination facility in working order under the effective RGB mean value of image and with the comparing of around mean value.
Preferably, in described step one, presetting bit is set for the image of city illumination and refers to employing band monopod video camera, the presetting bit of The Cloud Terrace is set by the mode exporting control code.
Preferably, obtain live video stream from video camera in described step 2 and comprise the video flowing using computer server directly to be obtained digital camera by network access mode, and adopt video encoder analog video camera to be carried out to the image of analog-converted digital form.
Preferably, extract relevant lighting installation image feature amount in described step 3 and comprise from position, video flowing manual mode notification server lighting installation location, and the server picture position corresponding to lighting installation is demarcated.
Preferably, in described step 5 display and analysis result comprise adopt database storage method analysis result is kept a record.
Preferably, arrange presetting bit method in step 2, by pre-setting, the mode then adopting center to send next presetting bit information command completes the action of whole process.
Further, the present invention also comprises a kind of device adopted for the image determination method of city illumination facility, it is characterized in that: comprise the video camera that front end is band The Cloud Terrace, for gathering image; Center processing unit, for the treatment of the computing carrier of relevant live video stream; Connection display section, rear end, make result and export, center processing unit comprises server; Be provided with the network interface be connected with video camera in described server, network interface Connection Cache, buffer memory join algorithm processor, described APU connects video frequency output VGA mouth and record memory module respectively, is also provided with CPU in described server.
Preferably, the video camera of described band The Cloud Terrace at least comprises the one in spherical integrated camera, digital network monopod video camera and network ball-shaped integrated camera.
Preferably, the video frequency output of described video camera, through RJ45 interface, namely adopts network way of output connection server; The input of server is also network interface, and namely the output of digital camera is as the input of server, wherein, adopts parallel twisted pairs as communication media; According to device that the present invention sets forth, adopt 1G bandwidth for transmission standard; The output of server adopts USB interface, and display section adopts LCD liquid crystal display.
The present invention analyzes by carrying out rationalization to the data gathered in service end, energy Real Time Monitoring front end live video stream, and RGB analysis is done to effective surveyed area, comprehensively average obtained value, adopt the mode of database purchase to store obtained value, compare; In addition, described model can detect the surveyed area demarcated in video image automatically, and is analyzed, stores, realize one in a big way in systematicness illumination monitor, sampling analysis is more accurate.
Accompanying drawing explanation
By hereafter to the detailed description of exemplifying enforcement, the features and advantages of the present invention will become more obvious, and the present invention sets forth, in accompanying drawing by reference to accompanying drawing:
Fig. 1 is a kind of image determination method overall system architecture figure for city illumination facility of the present invention.
Fig. 2 is that surveyed area arranges measure schematic diagram; Manual mode described by surveyed area 1-4 represents delimit surveyed area.
The particular hardware equipment that Fig. 3 adopts for the image determination method of city illumination facility for the present invention is a kind of.
Fig. 4 is system flow chart of the present invention.
Concrete measure:
Be illustrated in figure 1 the system configuration schematic diagram of the embodiment of the present invention, Fig. 4 is system flow chart of the present invention.The present invention adopts The Cloud Terrace digital camera to complete image real-time acquisition, wherein, described digital camera is the device of collection ccd sensor and video processing module one, analog video signal, change through A/D, then use RTP packaged type, pass agreement in conjunction with RTSP net, thus achieve analog video camera digitlization; As front-end collection of the present invention, also can adopt analog video camera, combining with video encoder completes head end video collection; Wherein, described video encoder adopts H.264 Video coding mode to encode to video flowing, adopts RTP+RTSP mode to realize digital video frequency flow respectively and exports; The present invention uses PC server as device, and wherein, the configuration of equipment possesses the high-speed servers of 1 road network interface, 4G memory size, 3.0G dominant frequency CPU, 256G hard-disk capacity; Its implementation is: a kind of image determination method for city illumination facility, is characterized in that: said method comprising the steps of,
Step one: the image for city illumination arranges control presetting bit;
Step 2: obtain live video stream from video camera;
Step 3: extract relevant lighting installation image feature amount;
Step 4: adopt balance image processing method to analyze the characteristic quantity extracted;
Step 5: display is record analysis result also;
Wherein need the mode by exporting control code that the presetting bit of The Cloud Terrace is set in step one.Server software also can manually arrange presetting bit function, obtains current camera positional information by API transparent channel, and transmission Sendcall function completes the control to The Cloud Terrace, makes it to arrive preset position; If address for the purpose of the position finding described video camera, then turn back to and arrange surveyed area function; The video camera of described band The Cloud Terrace at least comprises the one in spherical integrated camera, digital network monopod video camera and network ball-shaped integrated camera.Video camera with The Cloud Terrace carries out the device of horizontal and vertical directions rotation with carrying video camera, and video camera can be made to make a video recording from multiple angle.In-built two motor of The Cloud Terrace.The angular dimension of level and vertical rotation adjusts by limit switch.Be divided into again indoor The Cloud Terrace and outdoor use The Cloud Terrace.
Step 2: obtain live video stream from video camera; The acquisition of video flowing is completed from the SDK that provides of described digital camera of access, wherein, implementation method realizes real-time stream acquisition for first calling api interface, then, calling H.264 video decode storehouse and realize decoding video stream, completing YUV420 format video stream by calling API-BACK function; Now realize step three: extract relevant lighting installation image feature amount.
Employing balance image processing method described in step 4 extracts characteristic quantity and refers to employing image binaryzation associated sensing space, and the methods of carrying out three summations obtain end value; Use equation models function describes: this part has balance image processing method to adopt balance image processing method extraction characteristic quantity to refer to employing image binaryzation associated sensing space, and the methods of carrying out three summations obtain end value; Equation models function is used to describe:
T0＝{(T1-T2)*k1+(T2-T3)*k2}/3；
Wherein, T0 obtains average results for finally effectively analyzing; T1 is the rgb value of the first surveyed area; T2 is the peripheral surveyed area RGB mean value of T1 indication; T3 is all RGB mean value in visual angle; K1 is the coefficient of the corresponding region area gained of rgb value; K2 is detection coefficient in effective area of detection; Surveyed area requirement is set according to described video, binary conversion treatment can be carried out to this picture, then calculate according to regional average RGB value respectively, finally obtain accordingly result.
Fig. 2 is the manual interpolation functional schematic of this device institute surveyed area; If the coordinate on summit is (x1, y1), cornerwise coordinate is (x2, y2), then other two coordinates are respectively (x1, y2), (x2, y1); With this, system can calculate the coordinate of arbitrfary point in this surveyed area automatically; And the area of surveyed area is fed back to function T1 as basis; Determine whether critical value after analysis completes, be conventional value, if not then carry out videograph and store.
By such mode, manager is home-confined can monitor city illumination facility operation situation, and accurately obtains the information of lighting apparatus in time, realizes monitoring in real time.
Fig. 3 is this device hardware configuration connection layout, comprises the video camera that front end is band The Cloud Terrace, for gathering image; Center processing unit, for the treatment of the computing carrier of relevant live video stream; Connection display section, rear end, make result and export, center processing unit comprises server; Be provided with the network interface be connected with video camera in described server, network interface Connection Cache, buffer memory join algorithm processor, described APU connects video frequency output VGA mouth and record memory module respectively, is also provided with CPU in described server.The video camera of described band The Cloud Terrace at least comprises the one in spherical integrated camera, digital network monopod video camera and network ball-shaped integrated camera.The video frequency output of described video camera, through RJ45 interface, namely adopts network way of output connection server; The input of server is also network interface, and namely the output of digital camera is as the input of server, wherein, adopts parallel twisted pairs as communication media; According to device that the present invention sets forth, adopt 1G bandwidth for transmission standard; The output of server adopts USB interface, and display section adopts LCD liquid crystal display.
Certainly; the present invention also can have other multiple enforcements; do not deviating under the present invention's spirit and its real situation; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the present invention.
Claims (9)
1., for an image determination method for city illumination facility, it is characterized in that: said method comprising the steps of,
Step one: the image for city illumination arranges control presetting bit;
Step 2: obtain live video stream from video camera;
Step 3: extract relevant lighting installation image feature amount;
Step 4: adopt balance image processing method to analyze the characteristic quantity extracted;
Step 5: display is record analysis result also;
Wherein, the employing balance image processing method described in step 4 extracts characteristic quantity and refers to employing image binaryzation associated sensing space, and the methods of carrying out three summations obtain end value; Equation models function is used to describe:
T0＝{(T1-T2)*k1+(T2-T3)*k2}/3；
Wherein, T0 obtains average results for finally effectively analyzing; T1 is the rgb value of the first surveyed area; T2 is the peripheral surveyed area RGB mean value of T1 indication; T3 is all RGB mean value in visual angle; K1 is the coefficient of the corresponding region area gained of rgb value; K2 is detection coefficient in effective area of detection;
According to above model, calculate this city illumination facility in working order under the effective RGB mean value of image and with the comparing of around mean value.
2. a kind of image determination method for city illumination facility according to claim 1, it is characterized in that: in described step one, presetting bit is set for the image of city illumination and refers to employing band monopod video camera, the presetting bit of The Cloud Terrace is set by the mode exporting control code.
3. a kind of image determination method for city illumination facility according to claim 1, it is characterized in that: obtain live video stream from video camera in described step 2 and comprise the video flowing using computer server directly to be obtained digital camera by network access mode, and adopt video encoder analog video camera to be carried out to the image of analog-converted digital form.
4. a kind of image determination method for city illumination facility according to claim 1, it is characterized in that: extract relevant lighting installation image feature amount in described step 3 and comprise from position, video flowing manual mode notification server lighting installation location, and the server picture position corresponding to lighting installation is demarcated.
5. a kind of image determination method for city illumination facility according to claim 1, is characterized in that: in described step 5 display and analysis result comprise adopt database storage method analysis result is kept a record.
6. a kind of image determination method for city illumination facility according to claim 2, it is characterized in that: in step 2, presetting bit method is set, by pre-setting, the mode then adopting center to send next presetting bit information command completes the action of whole process.
7. a kind of device adopted for the image determination method of city illumination facility according to claim 1, is characterized in that: comprise the video camera that front end is band The Cloud Terrace, for gathering image; Center processing unit, for the treatment of the computing carrier of relevant live video stream; Connection display section, rear end, make result and export, center processing unit comprises server; Be provided with the network interface be connected with video camera in described server, network interface Connection Cache, buffer memory join algorithm processor, described APU connects video frequency output VGA mouth and record memory module respectively, is also provided with CPU in described server.
8. a kind of device adopted for the image determination method of city illumination facility as claimed in claim 7, is characterized in that: the video camera of described band The Cloud Terrace at least comprises the one in spherical integrated camera, digital network monopod video camera and network ball-shaped integrated camera.
9. a kind of device adopted for the image determination method of city illumination facility as claimed in claim 7, is characterized in that: the video frequency output of described video camera, through RJ45 interface, namely adopts network way of output connection server; The input of server is also network interface, and namely the output of digital camera is as the input of server, wherein, adopts parallel twisted pairs as communication media; According to device that the present invention sets forth, adopt 1G bandwidth for transmission standard; The output of server adopts USB interface, and display section adopts LCD liquid crystal display.
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