CN108111808A - A kind of overboard detection method based on real time video image analysis - Google Patents
A kind of overboard detection method based on real time video image analysis Download PDFInfo
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- CN108111808A CN108111808A CN201711231670.4A CN201711231670A CN108111808A CN 108111808 A CN108111808 A CN 108111808A CN 201711231670 A CN201711231670 A CN 201711231670A CN 108111808 A CN108111808 A CN 108111808A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/11—Region-based segmentation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/52—Surveillance or monitoring of activities, e.g. for recognising suspicious objects
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/08—Alarms for ensuring the safety of persons responsive to the presence of persons in a body of water, e.g. a swimming pool; responsive to an abnormal condition of a body of water
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10016—Video; Image sequence
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30232—Surveillance
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Emergency Alarm Devices (AREA)
- Image Analysis (AREA)
Abstract
A kind of overboard detection method based on real time video image analysis, overboard detection is implemented using the overboard detection device analyzed based on real time video image, overboard detection device based on real time video image analysis includes IP video cameras, alarm, interchanger and overboard detection service device, IP video cameras are mounted on alarm in detection zone, and IP video cameras are connected with interchanger, interchanger is connected with overboard detection service device, overboard detection service device is connected with alarm, and overboard detection module and artificial one-touch confirmation module are provided in overboard detection service device, when overboard detection module is determined as overboard event, operating personnel are confirmed by manually one-touch confirmation module, and corresponding measure is taken according to confirmation result, effectively save substantial amounts of human and material resources, improve alarm accuracy, reduce rate of false alarm.
Description
Technical field
The present invention relates to Video Analysis Technology field more particularly to a kind of overboard detections based on real time video image analysis
Method.
Background technology
With the rapid development of national economy and basic science, the people start to have the public safety guarantee in daily life
Higher standard and the request.The people wish the personal safety and property by strengthening security infrastructure construction itself
Safety obtains necessary guarantee or even wishes when danger will occur or just occur, can be by high-tech means come early warning
Or alarm, to reduce personnel's injury and property loss.Lake such as city is more, and the summer high temperature weather duration is long,
Season resident is gathered in that the number enjoyed the cool on lake periphery is more, although the warning sign that no swimming is all set up on lake periphery,
But someone will fall into the water, life danger is in turn resulted in.Every year because the overboard number being drowned is more than tens of thousands of people, wherein greatly
Mortality person is the children of less than 12 years old, although taken such as real-time video monitoring, 24 it is small when emergency relief measure,
It is to produce little effect.
At present in the published patent of overboard context of detection primarily directed in object（Such as：Container etc.）Overboard inspection
It surveys, method is mostly the installation sensing trigger on object, once overboard trigger policy at once；It is directed to the overboard detection of human body
It is and few in number using the patent of video analysis.In addition, by investigation and analysis, in digital image processing techniques and computer vision
Technical field, the successful application case of this aspect is also fewer and fewer, and main cause is：Rate of false alarm can not be reduced, using video point
What the overboard detection of analysis method progress was actually applied is the invasion principle in video analysis, i.e., has been detected whether in scribe area
Gray scale generates the pixel agglomerate of variation（Invade agglomerate）It is interpreted as invading if existing, when the completion line on natural water area
After region, due to wind blow make water generate ripple and sunlight make water generate gleams of light are reflecting on waves in the river all easily in drawn area
The pixel agglomerate of grey scale change is generated in domain, alarm is generated after number of pixels shared by agglomerate is more than given threshold, in nature
Under the conditions of, such alarm is countless, in turn results in rate of false alarm and remains high.
The content of the invention
Technical problem solved by the invention is to provide a kind of overboard detection method based on real time video image analysis,
To solve the disadvantage that in above-mentioned background technology.
Technical problem solved by the invention is realized using following technical scheme：
A kind of overboard detection method based on real time video image analysis, using the overboard detection analyzed based on real time video image
Device implements overboard detection, and the overboard detection device based on real time video image analysis includes IP video cameras, alarm, interchanger
And overboard detection service device, IP video cameras are mounted on alarm in detection zone, and IP video cameras are connected with interchanger, are exchanged
Machine is connected with overboard detection service device, and overboard detection service device is connected with alarm, and is provided in overboard detection service device
Overboard detection module and artificial one-touch confirmation module, specific overboard detecting step are as follows：
1）Overboard detection service device is read the video flowing of IP camera acquisitions by interchanger and is decoded in real time, decoded
Video data is temporarily stored in caching；
2）Overboard detection module carries out Background generation and context update using VIBE background modelings algorithm, will store in the buffer
Video data carry out VIBE algorithm calculating, and by result of calculation deposit caching in, the result be headed by background and update background；
3）Polygon closure line is carried out to being actually subjected to detection zone in video using OpenGL algorithms, is in scribe area
Detection zone, the line of the detection zone are closed frame and are shown in always on video；Simultaneously more than detection zone inner horizontal
Region carries out polygon and is closed line, to determine region above the horizontal plane；
4）When in step 3）When agglomerate occurs in the detection zone of delimitation, overboard detection module is calculated using frame differential method and morphology
Method carries out the calculating of agglomerate number and agglomerate size；
5）When step 4）In to agglomerate calculating meet the following conditions retain：First, agglomerate size is more than given threshold；Second, group
The geometric type heart of block enters scribe area, while in scribe area above the horizontal plane, to meeting above-mentioned two condition
Agglomerate carries out target following, retains the agglomerate with displacement component vertically downward, when this agglomerate enters the horizontal plane of scribe area
Afterwards, transverse wave and is generated at once, and once overboard detection, at this time overboard detection service device early warning immediately occurs in mark；Work as appearance
Once after overboard detection, overboard detection module proposes 30 seconds video frame before the early warning moment from buffer area, then quickly exists repeatedly
Overboard detection service device display interface plays and this video frame is stored in specified folder in overboard detection service device immediately；
6）Operating personnel check the short-sighted frequency of 30 seconds before the early warning moment played in overboard detection service device display interface into pedestrian
Work is secondary to be determined, however, it is determined that for overboard event, then presses acknowledgement key, overboard detection clothes by manually one-touch confirmation module confirmation
Business device, which will retain this short-sighted frequency, to be continued to be stored in specified folder, and is triggered alarm signal and promoted the report being mounted in detection zone
Alert device sends alarm, while scene preparation rescue party 5 is notified to carry out quick responding rescue；If not overboard event, then press no
Determine key, overboard detection service device will delete this section of video, and cancel early warning.
In the present invention, step 1）In, overboard detection service device solves video flowing using FFmpeg Video Decoders
Code.
In the present invention, step 5）In, when early warning occurs in overboard detection service device, line is closed frame and reddens, and sends pre-
Alert prompt tone.
In the present invention, step 5）In, overboard detection module is using FFmpeg video encoders to 30 seconds before the early warning moment
Video frame carries out Video coding.
Advantageous effect：
1）The present invention efficiently reduces rate of false alarm, improves alarm accuracy, and then improves work efficiency；
2）The present invention is not required to a large amount of manpowers and carries out live patrols, be also not required to staff 24 it is small when checking monitoring video, it is only necessary to
One digital video monitoring personnel checks short-sighted frequency in time after early warning is heard, judges rear operating in a key, effectively saves
Substantial amounts of human and material resources.
Description of the drawings
Fig. 1 is the flow diagram of presently preferred embodiments of the present invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Referring to a kind of overboard detection method based on real time video image analysis of Fig. 1, using based on real time video image
The overboard detection device of analysis implements overboard detection, and the overboard detection device based on real time video image analysis is imaged including IP
Machine, alarm, interchanger and overboard detection service device, IP video cameras are mounted on alarm in detection zone, and IP video cameras
It being connected with interchanger, interchanger is connected with overboard detection service device, and overboard detection service device is connected with alarm, and in overboard inspection
It surveys in server and is provided with overboard detection module and artificial one-touch confirmation module, be determined as overboard event in overboard detection module
When, operating personnel confirm that specific overboard detecting step is as follows by manually one-touch confirmation module：
1）Overboard detection service device reads the video flowing of IP camera acquisitions by interchanger in real time, and uses FFmpeg video solutions
Code device is decoded, and decoded video data is temporarily stored in caching；
2）Overboard detection module carries out background generation and updating using VIBE background modelings algorithm, will store video in the buffer
Data carry out VIBE algorithm calculating, and by result of calculation deposit caching in, the result be headed by background and update background；
3）Polygon closure line is carried out to being actually subjected to detection zone in video using OpenGL algorithms, is in scribe area
Detection zone, the line of the detection zone are closed frame and are shown in always on video；Simultaneously more than detection zone inner horizontal
Region carries out polygon and is closed line, and to determine region above the horizontal plane, the closed line in the region is not necessarily displayed on video；
4）When in step 3）When agglomerate occurs in the detection zone of delimitation, overboard detection module is calculated using frame differential method and morphology
Method carries out the calculating of agglomerate number and agglomerate size；
5）When step 4）In to agglomerate calculating meet the following conditions retain：First, agglomerate size is more than given threshold；Second, group
The geometric type heart of block enters scribe area, while in scribe area above the horizontal plane, to meeting above-mentioned two condition
Agglomerate carries out target following, retains the agglomerate with displacement component vertically downward, when this agglomerate enters the horizontal plane of scribe area
Afterwards, transverse wave and is generated at once（Laterally ever-expanding gray scale difference is shown as in gray level image）, mark occurs once overboard
Detection, at this time overboard detection service device early warning immediately, line are closed frame and redden, and send early warning sound；It is once overboard when occurring
After detection, overboard detection module by 30 seconds video frame before the early warning moment from buffer area propose, using FFmpeg video encoders into
Row Video coding then quickly plays repeatedly in overboard detection service device display interface and is stored immediately in overboard detection service device
Middle specified folder stores headspace to empty buffer area for follow-up short-sighted frequency；
6）Operating personnel check the short-sighted frequency of 30 seconds before the early warning moment played in overboard detection service device display interface into pedestrian
Work is secondary to be determined, however, it is determined that for overboard event, then presses acknowledgement key, overboard detection clothes by manually one-touch confirmation module confirmation
Business device, which will retain this short-sighted frequency, to be continued to be stored in specified folder, and is triggered alarm signal and promoted the report being mounted in detection zone
Alert device sends alarm, while scene preparation rescue party 5 is notified to carry out quick responding rescue；If not overboard event, then press no
Determine key, overboard detection service device will delete this section of video, and cancel early warning.
The basic principles, main features and the advantages of the invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (4)
1. a kind of overboard detection method based on real time video image analysis, which is characterized in that using based on real time video image
The overboard detection device of analysis implements overboard detection, and the overboard detection device based on real time video image analysis is imaged including IP
Machine, alarm, interchanger and overboard detection service device, IP video cameras are mounted on alarm in detection zone, and IP video cameras
It being connected with interchanger, interchanger is connected with overboard detection service device, and overboard detection service device is connected with alarm, and in overboard inspection
It surveys in server and is provided with overboard detection module and artificial one-touch confirmation module, specific overboard detecting step is as follows：
1）Overboard detection service device is read the video flowing of IP camera acquisitions by interchanger and is decoded in real time, decoded
Video data is temporarily stored in caching；
2）Overboard detection module carries out Background generation and context update using VIBE background modelings algorithm, will store in the buffer
Video data carry out VIBE algorithm calculating, and by result of calculation deposit caching in, the result be headed by background and update background；
3）Polygon closure line is carried out to being actually subjected to detection zone in video using OpenGL algorithms, is in scribe area
Detection zone, the line of the detection zone are closed frame and are shown in always on video；Simultaneously more than detection zone inner horizontal
Region carries out polygon and is closed line, to determine region above the horizontal plane；
4）When in step 3）When agglomerate occurs in the detection zone of delimitation, overboard detection module is calculated using frame differential method and morphology
Method carries out the calculating of agglomerate number and agglomerate size；
5）When step 4）In to agglomerate calculating meet the following conditions retain：First, agglomerate size is more than given threshold；Second, group
The geometric type heart of block enters scribe area, while in scribe area above the horizontal plane, to meeting above-mentioned two condition
Agglomerate carries out target following, retains the agglomerate with displacement component vertically downward, when this agglomerate enters the horizontal plane of scribe area
Afterwards, transverse wave and is generated at once, and once overboard detection, at this time overboard detection service device early warning immediately occurs in mark；Work as appearance
Once after overboard detection, overboard detection module proposes 30 seconds video frame before the early warning moment from buffer area, then quickly exists repeatedly
Overboard detection service device display interface plays and this video frame is stored in specified folder in overboard detection service device immediately；
6）Operating personnel check the short-sighted frequency of 30 seconds before the early warning moment played in overboard detection service device display interface into pedestrian
Work is secondary to be determined, however, it is determined that for overboard event, then presses acknowledgement key, overboard detection clothes by manually one-touch confirmation module confirmation
Business device, which will retain this short-sighted frequency, to be continued to be stored in specified folder, and is triggered alarm signal and promoted the report being mounted in detection zone
Alert device sends alarm, while scene preparation rescue party 5 is notified to carry out quick responding rescue；If not overboard event, then press no
Determine key, overboard detection service device will delete this section of video, and cancel early warning.
A kind of 2. overboard detection method based on real time video image analysis according to claim 1, which is characterized in that step
Rapid 1）In, overboard detection service device is decoded video flowing using FFmpeg Video Decoders.
A kind of 3. overboard detection method based on real time video image analysis according to claim 1, which is characterized in that step
Rapid 5）In, when early warning occurs in overboard detection service device, line is closed frame and reddens, and sends early warning sound.
A kind of 4. overboard detection method based on real time video image analysis according to claim 1, which is characterized in that step
Rapid 5）In, overboard detection module carries out Video coding using FFmpeg video encoders to 30 seconds video frame before the early warning moment.
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| CN201711231670.4A CN108111808B (en) | 2017-11-30 | 2017-11-30 | Drowning detection method based on real-time video image analysis |
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Cited By (4)
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| CN110148283A (en) * | 2019-05-16 | 2019-08-20 | 安徽天帆智能科技有限责任公司 | It is a kind of to fall water monitoring system in real time based on convolutional neural networks |
| CN111028480A (en) * | 2019-12-06 | 2020-04-17 | 江西洪都航空工业集团有限责任公司 | Drowning detection and alarm system |
| CN111310556A (en) * | 2019-12-20 | 2020-06-19 | 山东汇佳软件科技股份有限公司 | Drowning prevention safety supervision system based on primary and middle school student area and monitoring method thereof |
| CN112673377A (en) * | 2018-09-06 | 2021-04-16 | 罗伯特·博世有限公司 | Monitoring device and method for monitoring man overboard |
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| CN108111808B (en) | 2020-04-28 |
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Address after: Nanchang high tech Industrial Development Zone, Jiangxi Province Patentee after: JIANGXI HONGDU AVIATION INDUSTRY GROUP Co.,Ltd. Address before: 330000 Jiangxi city in Nanchang Province, the new bridge box 460 box 5001 Patentee before: JIANGXI HONGDU AVIATION INDUSTRY GROUP Co.,Ltd. |