CN209845141U - Video monitoring system with automatic image screening function - Google Patents
Video monitoring system with automatic image screening function Download PDFInfo
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- CN209845141U CN209845141U CN201822131914.8U CN201822131914U CN209845141U CN 209845141 U CN209845141 U CN 209845141U CN 201822131914 U CN201822131914 U CN 201822131914U CN 209845141 U CN209845141 U CN 209845141U
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Abstract
The utility model provides a video monitoring system of image autofilter, this system includes: a video collector for collecting video data; the memory is connected with the video collector and used for storing the video data; the target automatic screening module is connected with the memory and is used for screening target images in the video data; the server is connected with the storage module and the target automatic screening module to match information related to the target image; and the management platform is connected with the target automatic screening module and the server. Through the automatic analysis of sequence images in the video data, the video data collected by the video collector is automatically screened, and the target image is determined to be output to the server and the management platform, so that the investigation and evidence obtaining can be conveniently and rapidly carried out in real time when the video data is transmitted back, meanwhile, the video transmission back rate is improved, the memory occupancy rate is reduced, the efficiency of retrieving the target image is improved, and the video monitoring system tends to be intelligent.
Description
Technical Field
The utility model relates to a video image technical field especially relates to a video monitoring system of image autofilter.
Background
Video monitoring is widely available in banks, shopping malls, parking lots, traffic intersections and the like, but the existing video monitoring systems usually only capture, store and distribute video images, do not have any naked data subjected to video analysis, and do not fully play the role of real-time active monitoring and supervision.
However, when investigation and evidence collection are needed, the returned video is often searched manually, the video transmission speed is low, the memory is large, the purpose of real-time and rapid locking cannot be achieved, and the labor amount of workers is increased. In addition, the adoption of manual retrieval and screening of target images requires high attention and alertness, and because human beings have physiological weakness of human beings as monitors, various video monitoring systems have the defects of poor alarm accuracy, more false alarms and missed alarms, difficult video data analysis and the like more or less, so that the safety and the practicability of the whole system are reduced.
SUMMERY OF THE UTILITY MODEL
In view of the above prior art's shortcoming, the utility model aims to provide an image autofilter's video monitor system for solve among the prior art video monitor image when the passback is called, unable real-time quick locking target, lead to video transmission to occupy the big problem of memory slowly.
In order to achieve the above objects and other related objects, the present invention provides a video monitoring system with automatic image screening, including:
a video collector for collecting video data;
the memory is connected with the video collector and used for storing the video data;
the target automatic screening module is connected with the memory and is used for screening target images in the video data;
the server is connected with the storage module and the target automatic screening module to match information related to the target image;
and the management platform is connected with the target automatic screening module and the server.
In an embodiment of the present invention, the video collector is a video recorder or a camera.
In an embodiment of the present invention, the memory stores the collected video data in a distributed manner.
In an embodiment of the present invention, the video collector is connected to a memory network.
In an embodiment of the present invention, the server is connected to the external database data.
In an embodiment of the present invention, the external database includes one or more of a public security system database, a personnel management and control library, and a material storage library.
In an embodiment of the present invention, the target automatic screening module includes a target extracting unit and a target screening unit which are connected in sequence.
In an embodiment of the present invention, the management platform includes one or more of a smart phone, a tablet computer, or a computer.
As described above, the utility model discloses a video monitoring system of image autofilter has following beneficial effect:
through the automatic analysis of sequence images in the video data, the video data collected by the video collector is automatically screened, and the target image is determined to be output to the server and the management platform, so that the investigation and evidence obtaining can be conveniently and rapidly carried out in real time when the video data is transmitted back, meanwhile, the video transmission back rate is improved, the memory occupancy rate is reduced, the efficiency of retrieving the target image is improved, and the video monitoring system tends to be intelligent.
Drawings
Fig. 1 shows a block diagram of a video monitoring system for automatic image screening according to the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
Please refer to fig. 1, which is a block diagram of a video monitoring system for automatically screening images according to the present invention, comprising:
the video acquisition device 1 is used for acquiring video data;
the memory 2 is connected with the video collector and used for storing the video data; the number of the video collectors and the memory is not more than one;
the video acquisition device acquires video data by using the camera module; the camera module is a camera installed at each place, for example, image information of a corresponding area acquired by a camera installed at a public place such as a shopping mall, a station and the like, the camera can be various cameras of different types, acquired analog signals are converted into digital signals through the camera, and video data return (transmission) is realized through a network according to a standard video coding format and a communication protocol. The video data acquisition device can be connected with the storage module through a network, the problem that the storage performance is reduced due to random disk reading and writing and disk fragments in the traditional storage is solved, and the safety and the reliability of video data storage can be ensured. In addition, in addition to remote transmission of video data over a network, local video data may also be stored in a distributed manner as desired.
The target automatic screening module 3 is connected with the memory and is used for screening target images in the video data;
the target automatic screening module 3 comprises a target extracting unit 31 and a target screening unit 32;
the target extraction unit 31 determines a common target image among consecutive frames by using consecutive multi-frame images and a difference image in a video sequence in the video data; and setting a threshold value according to the common target image to distinguish a foreground target from a background, and extracting a target image in the image by determining a target contour.
In the embodiment, the common target images of continuous multiple frames are determined through the inter-frame information, the foreground target and the background are distinguished according to the set threshold value, so that the contour of the target image is determined, all the target images are convenient to extract, and the images with the similarity reaching a certain requirement with the contour of the target image in all the frame images are all regarded as the target images, so that the screening base number of the images is increased.
The target screening unit 32 extracts all target images from the images corresponding to the video sequence; evaluating the quality of all target images from the aspects of illumination, blur and angle based on an image quality optimization algorithm; and screening the target images with the quality scores reaching the preset threshold value on the basis of the preset threshold value.
The image quality-based optimization algorithm may be a gradient, a Hessian matrix, a lagrange multiplier, a simplex method, a gradient descent method, and the like, which are not described in detail herein.
In this embodiment, a subjective evaluation method may be adopted, under a specific environment (including controlled factors such as illumination, observation distance, and image sequence selection and display interval), the images are considered from the aspects of brightness, angle, sharpness, noise degree, and the like according to a given evaluation criterion, and an evaluation score is given, so as to obtain a subjective evaluation score of the target image through statistics and weighted average, thereby setting a preset threshold value, quantizing the target image to be evaluated for quality, and achieving the purpose of screening the target image.
Or, an objective evaluation method is adopted to evaluate the image quality of the target image, for example, an ideal mathematical model is found to evaluate the image quality through mathematical and engineering modes, so that the evaluation result can be consistent with the subjective evaluation result, the image quality is simulated and replaced by the perception of the human visual system, even the video quality, and the target image is quantitatively judged in a full reference evaluation method, a partial reference evaluation method or a no-reference evaluation method and the like, so that the aim of screening the target image is fulfilled.
The target image is analyzed and judged by setting a threshold value, the target image retrieval precision is improved, the target image with better quality is optimized by adopting a quality optimizing algorithm, and the safe and stable operation of the video monitoring image screening method is ensured by adopting a modularization and layering isolation mode.
In the above embodiment, the target automatic screening module 3 writes the extraction program and the screening program of the target image into the dedicated chip, which may be a central processing unit or a programmable logic device, and since the written extraction program and the written screening program are both conventional programs for image screening in the field, they are not described herein again.
The server 4 is connected with the storage module and the target automatic screening module so as to match information related to the target image;
the server is respectively connected with the storage module and an external database (information bases such as a public security system database, a key personnel management and control base and an important substance storage base) through a network, and after a target image is received, the server performs unified matching on the storage module or/and the external database according to the target image, quickly identifies the target image information and feeds the target image information back to the management platform, so that the follow-up processing of a worker on the management platform is facilitated.
And the management platform 5 is connected with the target automatic screening module and the server and is used for intelligently managing the video data according to the target image.
Specifically, the management platform includes one or more of a smart phone, a tablet computer, or a computer.
The management platform performs unified management and control on the received video data, and can perform operations such as preview, download, alarm, maintenance and the like on a target image in the further data processing process, for example, when the target image is received, the stored target image can be called by sending an instruction to preview or download video information; similarly, an alarm condition can be set in the management platform, and when the alarm condition is detected to be met, alarm information is triggered to remind; through setting up safe alarm unit in the management platform, can report to the police immediately when monitoring the abnormal conditions, avoided the manual monitoring to miss report, wrong report phenomenon, improved the security. In the embodiment, by analyzing and judging the original video data intelligently and in a networked manner, valuable video data can be screened out quickly and displayed to audiences through the video display unit.
On the basis of the above embodiment, a trigger signal may be further set, the target automatic screening module is controlled to start working according to the trigger signal monitored in real time, specifically, the trigger signal includes video time or/and target features, wherein the target features are one or more of human face features, geometric features, shape features, texture features and color features, the trigger signal may be automatically set according to requirements, and the trigger signal has a relationship with the target image, so as to improve accuracy and efficiency of screening.
To sum up, the utility model discloses an automatic analysis to sequence image among the video data carries out autofilter to the video data that video collector gathered, confirms target image output to server and management platform, surveys when making things convenient for the video data passback and can real-time rapid reaction of collecting evidence, simultaneously, has improved video passback speed, has reduced the memory occupancy, has improved the efficiency of retrieval target image for video monitoring system tends to the intellectuality. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. A video surveillance system for automatic image screening, the system comprising:
a video collector for collecting video data;
the memory is connected with the video collector and used for storing the video data;
the target automatic screening module is connected with the memory and is used for screening target images in the video data;
the server is connected with the storage module and the target automatic screening module to match information related to the target image;
and the management platform is connected with the target automatic screening module and the server.
2. The video monitoring system for automatic image screening according to claim 1, wherein the video collector is a video recorder or a camera.
3. The video surveillance system for automatic image screening according to claim 1, wherein the memory stores the collected video data in a distributed manner.
4. The video surveillance system for automatic image screening according to claim 1, wherein the video collector is connected to a memory network.
5. The video surveillance system for automatic image screening according to claim 1, characterized in that the server is connected to an external database data.
6. The video monitoring system for automatic image screening according to claim 5, wherein the external database comprises one or more of a public security system database, a personnel control library and a material storage library.
7. The video surveillance system for automatic image screening according to claim 1, wherein the management platform comprises one or more of a smart phone, a tablet computer or a computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822131914.8U CN209845141U (en) | 2018-12-19 | 2018-12-19 | Video monitoring system with automatic image screening function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822131914.8U CN209845141U (en) | 2018-12-19 | 2018-12-19 | Video monitoring system with automatic image screening function |
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| Publication Number | Publication Date |
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| CN209845141U true CN209845141U (en) | 2019-12-24 |
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| CN201822131914.8U Active CN209845141U (en) | 2018-12-19 | 2018-12-19 | Video monitoring system with automatic image screening function |
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