CN112616036A - Intelligent video monitoring system - Google Patents

Intelligent video monitoring system Download PDF

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Publication number
CN112616036A
CN112616036A CN202011320339.1A CN202011320339A CN112616036A CN 112616036 A CN112616036 A CN 112616036A CN 202011320339 A CN202011320339 A CN 202011320339A CN 112616036 A CN112616036 A CN 112616036A
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video
monitoring
image
management server
matrix
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Inventor
王丹星
余丹
兰雨晴
杨文昭
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Zhongbiao Huian Information Technology Co Ltd
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Zhongbiao Huian Information Technology Co Ltd
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
    • H04N23/661—Transmitting camera control signals through networks, e.g. control via the Internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Health & Medical Sciences (AREA)
  • Computing Systems (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

The invention provides an intelligent video monitoring system, which comprises a network camera, a data transmission center, a management server, a storage server, a monitoring mobile phone and a monitoring computer, wherein the network camera comprises: the network camera is used for shooting a monitoring area to obtain a monitoring video; the data transmission center is used for sending the monitoring video to the management server; the management server is used for processing the monitoring video and sending the processed monitoring video to the storage server for storage; the monitoring mobile phone is used for sending a request for viewing a monitoring video to the management server and playing video data returned by the management server according to the request for viewing by a mobile phone user; the monitoring computer is used for acquiring a monitoring strategy input by an administrator and sending the monitoring strategy to the management server, and the management server controls the shooting work of the network camera according to the monitoring strategy.

Description

Intelligent video monitoring system
Technical Field
The invention relates to the technical field of intelligent monitoring, in particular to an intelligent video monitoring system.
Background
The webcam is a new generation of webcam produced by combining traditional webcams and web technologies, and can transmit images to the other end of the earth through the web, and a remote browser can monitor the images without any specialized software, as long as the standard web browser (such as "Microsoft IE or Netscape") is used. The network camera is generally composed of a lens, an image sensor, a sound sensor, an A/D converter, an image sensor, a sound sensor, a controller network server, an external alarm, a control interface and the like.
In the prior art, the network camera is usually controlled by a management server on the network side, and the management server controls the work of the network camera through the network. And the management server can issue the video to the monitoring mobile phone, so that the user can check the monitoring video in real time through the monitoring mobile phone, and the management of the user is facilitated. However, in the prior art, a user can only check the monitoring video and cannot conveniently set the monitoring policy, that is, the user cannot conveniently set the monitoring policy.
Disclosure of Invention
The embodiment of the invention provides an intelligent video monitoring system.
The embodiment of the invention provides an intelligent video monitoring system, which comprises a network camera, a data transmission center, a management server, a storage server, a monitoring mobile phone and a monitoring computer, wherein the network camera comprises:
the network camera is used for shooting a monitoring area to obtain a monitoring video;
the data transmission center is used for sending the monitoring video to the management server;
the management server is used for processing the monitoring video and sending the processed monitoring video to the storage server for storage;
the monitoring mobile phone is used for sending a request for viewing a monitoring video to the management server and playing video data returned by the management server according to the request for viewing by a mobile phone user;
the monitoring computer is used for acquiring a monitoring strategy input by an administrator and sending the monitoring strategy to the management server, and the management server controls the shooting work of the network camera according to the monitoring strategy.
In one embodiment, the management server processes the monitoring video, including:
the management server identifies a background area and a target object in the monitoring video; and marking the target object in the monitoring video.
In one embodiment, the management server processes the monitoring video, including:
the management server identifies a moving video segment and a non-moving video segment in the monitoring video; and respectively marking the video sections with the dynamic and static videos and the video sections without the dynamic and static videos.
In one embodiment, the monitoring strategy comprises a monitoring start time, a monitoring end time and a monitoring requirement
A controlled spatial region,
Any one or more of the target objects to be monitored.
In one embodiment, the acquiring the monitoring policy input by the administrator includes:
playing the monitoring video for a manager to check;
in the process of playing the monitoring video, a playing pause command input by an administrator is obtained, and playing is paused according to the playing pause command;
receiving a target object or a target area framed and selected in a playing picture displayed after the playing is paused by an administrator;
and generating a monitoring strategy, wherein the monitoring strategy is used for monitoring the target object or the target area.
In one embodiment, the acquiring the monitoring policy input by the administrator includes:
acquiring an image picture of an input target object;
determining the image characteristics of the target object according to the image picture of the target object;
and generating a monitoring strategy, wherein the monitoring strategy is used for monitoring the object with the image characteristics.
In one embodiment, the method for identifying the moving video segment and the non-moving video segment in the monitoring video by the management server includes the steps of performing binarization processing on each frame of video image in the monitoring video, and performing moving and static analysis on the processed video image to obtain the moving video segment and the non-moving video segment, and includes the specific steps of:
step A1: obtaining an image matrix of each frame of video image in the monitoring video according to the monitoring video by using a formula (1)
Figure BDA0002792709280000031
Wherein A isiAn image matrix representing the ith frame of video image in the surveillance video; xabRepresenting the pixel value of the b-th pixel point of the a-th row in the image matrix of the ith frame of video image in the monitoring video; a is 1,2,3 … m; b is 1,2,3 … n; m represents the total number of pixel points of each column of the image matrix; n represents the total number of pixel points of each row of the image matrix;
step A2: carrying out binarization processing on an image matrix of each frame of video image in the monitoring video by using a formula (2):
Figure BDA0002792709280000032
wherein, Xab' expressing the pixel value of the b pixel point of the a row after the binarization of an image matrix of the ith frame of video image in the monitoring video; u 2]A step function (a function value is 1 when a value in parentheses is 0 or more, and a function value is 0 when a value in parentheses is less than 0); max (X)ab) Represents the matrix AiMaximum pixel value of; min (X)ab) Represents the matrix AiMinimum pixel value of;
the A is addediEach pixel point in the matrix A is calculated according to the formula (2) to obtain a new matrix Ai', the image matrix of the video image after the binarization is obtained;
step A3: obtaining the moving video section and the non-moving video section according to the image matrix of the binarized video image by using a formula (3):
Figure BDA0002792709280000041
wherein T represents a moving video segment and a static video segment in the monitoring video; n represents the total frame number of video images in the monitoring video; a. thei+1' an image matrix of a binarized video image corresponding to an i +1 frame video image in the monitoring video;
and the other video image sets except the T in the monitoring video are the motionless and motionless video segments.
The beneficial effects of the above technical scheme are: the monitoring mobile phone is responsible for the user to check the video data; the administrator can set a monitoring strategy through the monitoring computer, so that the network camera can carry out shooting work according to the monitoring strategy through the control of the management server. By the technical scheme, the user can conveniently set the monitoring strategy of the network camera, so that the network camera is more flexible and humanized, and the personalized requirements of the user are met.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of an intelligent video monitoring system according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The embodiment of the invention provides an intelligent video monitoring system, which comprises a network camera, a data transmission center, a management server, a storage server, a monitoring mobile phone and a monitoring computer, wherein the network camera comprises:
the network camera is used for shooting a monitoring area to obtain a monitoring video;
the data transmission center is used for sending the monitoring video to the management server;
the management server is used for processing the monitoring video and sending the processed monitoring video to the storage server for storage;
the monitoring mobile phone is used for sending a request for viewing the monitoring video to the management server and playing the video data returned by the management server according to the request for viewing by a mobile phone user;
and the monitoring computer is used for acquiring the monitoring strategy input by the administrator and sending the monitoring strategy to the management server, and the management server controls the shooting work of the network camera according to the monitoring strategy.
The beneficial effects of the above technical scheme are: the monitoring mobile phone is responsible for the user to check the video data; the administrator can set a monitoring strategy through the monitoring computer, so that the network camera can carry out shooting work according to the monitoring strategy through the control of the management server. By the technical scheme, the user can conveniently set the monitoring strategy of the network camera, so that the network camera is more flexible and humanized, and the personalized requirements of the user are met.
In one embodiment, the management server processes the monitoring video, including:
the management server identifies a background area and a target object in the monitoring video; and marking the target object in the monitoring video. Therefore, the target object can be clearly distinguished from the monitoring video, and the subsequent monitoring video can be conveniently checked.
In one embodiment, the management server processes the monitoring video, including: the method comprises the steps that a management server identifies a moving video band and a non-moving video band in a monitoring video; and respectively marking the sections with the dynamic and static video and the sections without the dynamic and static video. The video segments with motion and animation mean that the pictures of the videos comprise moving objects such as moving people, animals, plants and the like; an motionless video segment refers to a state where any object in the picture of the video is motionless. The above method marks the video sections with the dynamic and static video and the video sections without the dynamic and static video in the monitoring video respectively, so that the monitoring video can be conveniently checked.
In one embodiment, the method for identifying the moving video segment and the non-moving video segment in the monitoring video by the management server includes the steps of performing binarization processing on each frame of video image in the monitoring video, and performing moving and static analysis on the processed video image to obtain the moving video segment and the non-moving video segment, and includes the specific steps of:
step A1: obtaining an image matrix of each frame of video image in the monitoring video according to the monitoring video by using a formula (1)
Figure BDA0002792709280000061
Wherein A isiAn image matrix representing the ith frame of video image in the surveillance video; xabRepresenting the pixel value of the b-th pixel point of the a-th row in the image matrix of the ith frame of video image in the monitoring video; a is 1,2,3 … m; b is 1,2,3 … n; m represents the total number of pixel points of each column of the image matrix; n represents the total number of pixel points of each row of the image matrix;
step A2: carrying out binarization processing on an image matrix of each frame of video image in the monitoring video by using a formula (2):
Figure BDA0002792709280000062
wherein, Xab' expressing the pixel value of the b pixel point of the a row after the binarization of an image matrix of the ith frame of video image in the monitoring video; u 2]A step function (a function value is 1 when a value in parentheses is 0 or more, and a function value is 0 when a value in parentheses is less than 0); max (X)ab) Represents the matrix AiMaximum pixel value of; min (X)ab) Represents the matrix AiMinimum pixel value of;
the A is addediEach pixel point in the matrix A is calculated according to the formula (2) to obtain a new matrix Ai', the image matrix of the video image after the binarization is obtained;
step A3: obtaining the moving video section and the non-moving video section according to the image matrix of the binarized video image by using a formula (3):
Figure BDA0002792709280000063
wherein T represents a moving video segment and a static video segment in the monitoring video; n represents the total frame number of video images in the monitoring video; a. thei+1' an image matrix of a binarized video image corresponding to an i +1 frame video image in the monitoring video;
and the other video image sets except the T in the monitoring video are the motionless and motionless video segments.
The beneficial effects of the above technical scheme are: obtaining an image matrix of each frame of video image in the monitoring video by using the formula (1) in the step A1, so that the monitoring video images are all expressed by using the matrix, and subsequent calculation is facilitated; then, carrying out binarization processing on an image matrix of each frame of video image in the monitoring video by using a formula (2) in the step A2, so that the dynamic and static changes of the image are more highlighted, and the subsequent dynamic and static judgment is facilitated; the formula (3) in the step A3 obtains the video segments with dynamic and static video and the video segments without dynamic and static video, so that the formulas are used for calculating the video segments with dynamic and static video and the video segments without dynamic and static video, the accuracy of the obtained video segments with dynamic and static video and the video segments without dynamic and static video is ensured, and the automatic calculation and selection of the segments improves the feasibility of automation of the system.
In one embodiment, the monitoring strategy comprises any one or more of a monitoring start time, a monitoring end time, a spatial region to be monitored and a target object to be monitored.
In one embodiment, acquiring the monitoring policy input by the administrator comprises:
playing the monitoring video for a manager to check;
in the process of monitoring video playing, acquiring a playing pause command input by an administrator, and pausing playing according to the playing pause command;
receiving a target object or a target area framed and selected in a playing picture displayed after the playing is paused by an administrator;
and generating a monitoring strategy, wherein the monitoring strategy is to monitor the target object or the target area.
According to the technical scheme, an administrator can select the target object or the target area to be subjected to key monitoring from the corresponding playing picture by pausing the playing video at a proper time, and then the monitoring strategy is generated.
In one embodiment, acquiring the monitoring policy input by the administrator comprises:
acquiring an image picture of an input target object;
determining the image characteristics of the target object according to the image picture of the target object;
and generating a monitoring strategy, wherein the monitoring strategy is used for monitoring the object with the image characteristics.
According to the technical scheme, an administrator can select the target object or the target area to be subjected to key monitoring from the corresponding playing picture by pausing the playing video at a proper time, and then the monitoring strategy is generated.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (7)

1. The utility model provides an intelligent video monitoring system which characterized in that, includes web camera, data transmission center, management server, storage server, control cell-phone and control computer, wherein:
the network camera is used for shooting a monitoring area to obtain a monitoring video;
the data transmission center is used for sending the monitoring video to the management server;
the management server is used for processing the monitoring video and sending the processed monitoring video to the storage server for storage;
the monitoring mobile phone is used for sending a request for viewing a monitoring video to the management server and playing video data returned by the management server according to the request for viewing by a mobile phone user;
the monitoring computer is used for acquiring a monitoring strategy input by an administrator and sending the monitoring strategy to the management server, and the management server controls the shooting work of the network camera according to the monitoring strategy.
2. The system of claim 1,
the management server processes the monitoring video, and the method comprises the following steps:
the management server identifies a background area and a target object in the monitoring video; and marking the target object in the monitoring video.
3. The system of claim 1,
the management server processes the monitoring video, and the method comprises the following steps:
the management server identifies a moving video segment and a non-moving video segment in the monitoring video; and respectively marking the video sections with the dynamic and static videos and the video sections without the dynamic and static videos.
4. The system of claim 1,
the monitoring strategy comprises any one or more of monitoring starting time, monitoring ending time, a space area to be monitored and a target object to be monitored.
5. The system of claim 1,
the acquiring of the monitoring policy input by the administrator comprises:
playing the monitoring video for a manager to check;
in the process of playing the monitoring video, a playing pause command input by an administrator is obtained, and playing is paused according to the playing pause command;
receiving a target object or a target area framed and selected in a playing picture displayed after the playing is paused by an administrator;
and generating a monitoring strategy, wherein the monitoring strategy is used for monitoring the target object or the target area.
6. The system of claim 1,
the acquiring of the monitoring policy input by the administrator comprises:
acquiring an image picture of an input target object;
determining the image characteristics of the target object according to the image picture of the target object;
and generating a monitoring strategy, wherein the monitoring strategy is used for monitoring the object with the image characteristics.
7. The system of claim 3,
the management server identifies a moving video segment and a non-moving video segment in the monitoring video, and comprises the following steps of carrying out binarization processing on each frame of video image in the monitoring video, and carrying out moving and static analysis on the processed video image to obtain the moving video segment and the non-moving video segment, wherein the specific steps comprise:
step A1: obtaining an image matrix of each frame of video image in the monitoring video according to the monitoring video by using a formula (1)
Figure FDA0002792709270000021
Wherein A isiAn image matrix representing the ith frame of video image in the surveillance video; xabRepresenting the pixel value of the b-th pixel point of the a-th row in the image matrix of the ith frame of video image in the monitoring video; a is 1,2,3 … m; b is 1,2,3 … n; m represents the total number of pixel points of each column of the image matrix; n represents the total number of pixel points of each row of the image matrix;
step A2: carrying out binarization processing on an image matrix of each frame of video image in the monitoring video by using a formula (2):
Figure FDA0002792709270000031
wherein, Xab' expressing the pixel value of the b pixel point of the a row after the binarization of an image matrix of the ith frame of video image in the monitoring video; u 2]A step function (a function value is 1 when a value in parentheses is 0 or more, and a function value is 0 when a value in parentheses is less than 0); max (X)ab) Represents the matrix AiMaximum pixel value of; min (X)ab) Represents the matrix AiMinimum pixel value of;
the A is addediEach pixel point in the matrix A is calculated according to the formula (2) to obtain a new matrix Ai', the image matrix of the video image after the binarization is obtained;
step A3: obtaining the moving video section and the non-moving video section according to the image matrix of the binarized video image by using a formula (3):
Figure FDA0002792709270000032
wherein T represents a moving video segment and a static video segment in the monitoring video; n represents the total frame number of video images in the monitoring video; a. thei+1' an image matrix of a binarized video image corresponding to an i +1 frame video image in the monitoring video;
and the other video image sets except the T in the monitoring video are the motionless and motionless video segments.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004227527A (en) * 2003-01-27 2004-08-12 Fujitsu Ltd Image processing method, program for making computer execute it, and recording medium for recording it
CN103595965A (en) * 2013-11-18 2014-02-19 青岛大学 Mobile video monitoring method based on video traffic control
US20180253828A1 (en) * 2017-03-03 2018-09-06 Brother Kogyo Kabushiki Kaisha Image processing apparatus that specifies edge pixel in target image by calculating edge strength
CN108596140A (en) * 2018-05-08 2018-09-28 青岛海信移动通信技术股份有限公司 A kind of mobile terminal face identification method and system
CN111144337A (en) * 2019-12-30 2020-05-12 河北科技大学 Fire detection method and device and terminal equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004227527A (en) * 2003-01-27 2004-08-12 Fujitsu Ltd Image processing method, program for making computer execute it, and recording medium for recording it
CN103595965A (en) * 2013-11-18 2014-02-19 青岛大学 Mobile video monitoring method based on video traffic control
US20180253828A1 (en) * 2017-03-03 2018-09-06 Brother Kogyo Kabushiki Kaisha Image processing apparatus that specifies edge pixel in target image by calculating edge strength
CN108596140A (en) * 2018-05-08 2018-09-28 青岛海信移动通信技术股份有限公司 A kind of mobile terminal face identification method and system
CN111144337A (en) * 2019-12-30 2020-05-12 河北科技大学 Fire detection method and device and terminal equipment

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Application publication date: 20210406