CN114422760A - Video monitoring method and device based on multiplexing - Google Patents
Video monitoring method and device based on multiplexing Download PDFInfo
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- CN114422760A CN114422760A CN202210314657.XA CN202210314657A CN114422760A CN 114422760 A CN114422760 A CN 114422760A CN 202210314657 A CN202210314657 A CN 202210314657A CN 114422760 A CN114422760 A CN 114422760A
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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
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- 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
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- 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
- H04N23/695—Control of camera direction for changing a field of view, e.g. pan, tilt or based on tracking of objects
Abstract
The invention is suitable for the field of computers, and provides a video monitoring method and a device based on multiplexing, wherein the method comprises the following steps: detecting whether a suspicious target appears in a plurality of video monitoring data of a target place in real time, and judging whether the total times of appearance of the suspicious target is more than one time based on the plurality of video monitoring data; when the total number of times of the suspicious target appearing is only one time, controlling the action of image acquisition equipment in the surrounding area of the local area where the suspicious target is located, so that the acquisition range of the image acquisition equipment is overlapped with the preset area in the area where the suspicious target appears; when the total number of times of appearance of the suspicious target is more than one time and the suspicious target is detected to be only positioned in the same local area, the method has the advantages that: the method combines the multiplexing technology with the priority transmission, is favorable for improving the viewing efficiency, directly hits the main suspicious target and is convenient for the central supervision terminal personnel to timely and quickly respond after watching.
Description
Technical Field
The invention belongs to the technical field of computers, and particularly relates to a video monitoring method and device based on multiplexing.
Background
With the increasing popularization of monitoring cameras, the demand of security monitoring on key scenes through the cameras is also increasing, and the video monitoring technology is widely applied to various industries at present.
The monitoring system generally comprises front-end equipment (a camera, a lens, a holder, a protective cover, a support, a decoder, an alarm probe, a spotlight and the like) and control equipment (a hard disk video recorder, a matrix host, a monitor, an alarm box, a video distributor and the like), wherein the control equipment is divided into the hard disk video recording system, the matrix control system and the alarm system according to function division, the traditional security monitoring mainly monitors videos fed back to a monitoring room by each camera through manpower, but with exponential increase of the number of the cameras, a person is unconscious in looking over, potential dangerous targets are difficult to find from 'mass' monitoring videos, and meanwhile, transmission of 'mass' monitoring videos brings great challenges for timely finding the targets from the monitoring videos based on influence of transmission environment.
Disclosure of Invention
An embodiment of the present invention provides a video monitoring method and apparatus based on multiplexing, and aims to solve the problems in the background art.
The embodiment of the invention is realized in such a way that, on one hand, a video monitoring method based on multiplexing comprises the following steps:
detecting whether a suspicious target appears in a plurality of video monitoring data of a target place in real time, and judging whether the total times of appearance of the suspicious target is more than one time based on the plurality of video monitoring data;
when the total number of times of the suspicious target appearing is only one time, controlling the action of image acquisition equipment in the surrounding area of the local area where the suspicious target is located, so that the acquisition range of the image acquisition equipment is overlapped with the preset area in the area where the suspicious target appears;
when the total occurrence frequency of the suspicious targets is more than one time and the suspicious targets are detected to be only located in the same local area, the video monitoring data containing the suspicious targets located in the same local area are preferentially transmitted to a central monitoring end through a multiplexing channel;
when the total number of times of the suspicious targets is more than one, the suspicious targets are detected to pass through at least two local areas, and the number of the suspicious targets is only one, the video monitoring data containing the suspicious targets are transmitted to a central monitoring end through a multiplexing channel according to the appearance time sequence of the suspicious targets;
when the total number of times of occurrence of the suspicious target is more than one time, the suspicious target is detected to pass through at least two local areas, and more than one suspicious target is judged, video monitoring data containing the suspicious target is preferentially transmitted to a central monitoring end through a multiplexing channel according to the spatial movement sequence of the suspicious target;
and combining the video monitoring data received by the central monitor one by one according to the sequence of time or the sequence of space movement.
As a further scheme of the present invention, the detecting whether a suspicious target appears in the multiple video monitoring data of the target location in real time specifically includes:
acquiring identification characteristics, wherein the identification characteristics at least comprise preset face data and living body action characteristics, and the living body action characteristics comprise that the living body stays for a preset time and repeatedly moves for a preset number of times;
detecting whether video monitoring data acquired by a plurality of image acquisition devices based on a target place contains preset face data or not;
if yes, judging that a suspicious target appears in the corresponding video monitoring data;
if not, further judging whether the actions of the living organisms contained in the plurality of image acquisition devices comprise the types of the living organism action characteristics, and if so, judging that suspicious targets appear in the corresponding video monitoring data.
As a still further aspect of the present invention, before detecting whether a suspicious target appears in a plurality of video monitoring data of a target site in real time, the method further includes:
and establishing a multiplexing transmission channel between the multiplexing transmission channel and the central supervision terminal for at least one image acquisition device of each local area corresponding to each target site.
As a further aspect of the present invention, the determining whether the total number of times of occurrence of the suspicious target is greater than one time based on the plurality of video monitoring data specifically includes:
detecting whether a suspicious target in each video monitoring data corresponding to each local area appears after disappearing in a frame picture, and if so, determining that the suspicious target appears at least twice in a single video monitoring data corresponding to a single local area;
detecting whether a suspicious target in each video monitoring data corresponding to each local area disappears after the suspicious target disappears in a frame picture, if so, determining that the suspicious target appears once in a single video monitoring data corresponding to a single local area;
and accumulating and counting the times of suspicious target occurrence in each video monitoring data corresponding to each local area.
As a further aspect of the present invention, when the total number of times of occurrence of the suspicious object is only one, the method further includes: and when the suspicious target is detected to appear in any video monitoring data, transmitting a monitoring picture containing the first appearance of the suspicious target to the central monitoring terminal based on the corresponding transmission channel.
As a further aspect of the present invention, when the total number of times of occurrence of the suspicious target is only one, controlling the image capturing device in the surrounding area of the local area where the suspicious target is located to act so that the capturing range overlaps with the preset area in the area where the suspicious target occurs specifically includes:
locating a local area in which a suspicious target appears;
defining an area where a circle with the local area as the center of a circle and the radius as a preset radius is located as a surrounding area;
the method comprises the steps of obtaining the moving track of a suspicious target in video monitoring data, and controlling the acquisition end of image acquisition equipment in the surrounding area opposite to the moving track to be opposite to the moving track or have an intersection point with the forward extension line of the moving track when the local feature of the suspicious target is increased and then reduced in a monitoring picture corresponding to the video monitoring data;
and controlling the image acquisition equipment in the local areas on two sides of the peripheral area opposite to the movable track to deflect in a preset rotation period so that the acquisition range of the image acquisition equipment covers the peripheral area opposite to the movable track.
As a further scheme of the present invention, when the total number of times of occurrence of suspicious targets is greater than one and it is detected that the suspicious targets are located only in the same local area, the preferentially transmitting the video monitoring data containing the suspicious targets located in the same local area to the central monitoring end through the multiplexing channel specifically includes:
when the total number of times of the suspicious targets is more than one time, continuously detecting whether the suspicious targets only appear in the same local area;
if yes, stopping data feedback of the image acquisition equipment in other local areas in the multiplexing channel, and preferentially transmitting the video monitoring data containing the suspicious target in the same local area to a central supervision end through the multiplexing channel.
As a further aspect of the present invention, when the total number of times of occurrence of the suspicious target is greater than one, and it is detected that the suspicious target passes through at least two local areas, and it is determined that the suspicious target is only one, the transmitting the video monitoring data including the suspicious target to the central monitoring end through the multiplexing channel according to the sequence of the occurrence time of the suspicious target specifically includes:
when the total number of times of occurrence of the suspicious targets is more than one time, detecting whether the suspicious targets exist and are only one and the suspicious targets pass through at least two local areas;
if yes, the transmission sequence coding is carried out on the monitoring video data with the suspicious target according to the sequence of the time shaft, and the coded monitoring video data are transmitted to the central monitoring end through the multiplexing channel in sequence.
As a further scheme of the present invention, the preferentially transmitting the video monitoring data containing the suspicious target to the central monitoring end via the multiplexing channel according to the spatial movement sequence of the suspicious target specifically includes:
according to the local area where at least two suspicious targets appear simultaneously for the first time, moving at least one suspicious target to another local area, and constructing a suspicious target space moving track;
and transmitting the video monitoring data containing the suspicious target to a central monitoring end through a multiplexing channel according to the space moving track of the suspicious target.
As a further aspect of the present invention, in another aspect, a multiplexing-based video surveillance apparatus includes:
the detection and judgment module is used for detecting whether suspicious targets appear in a plurality of video monitoring data of a target place in real time and judging whether the total times of appearance of the suspicious targets are more than one time based on the plurality of video monitoring data;
the control module is used for controlling the action of image acquisition equipment in the surrounding area of the local area where the suspicious target is located when the total occurrence frequency of the suspicious target is only one time, so that the acquisition range of the image acquisition equipment is overlapped with the preset area in the area where the suspicious target appears;
the first transmission module is used for transmitting the video monitoring data containing the suspicious targets in the same local area to the central supervision terminal through a multiplexing channel preferentially when the total occurrence frequency of the suspicious targets is more than one time and the suspicious targets are detected to be only located in the same local area;
the second transmission module is used for transmitting the video monitoring data containing the suspicious targets to the central supervision terminal through the multiplexing channel according to the appearance sequence of the suspicious targets when the total number of times of the suspicious targets is more than one, the suspicious targets are detected to pass through at least two local areas, and only one suspicious target is judged;
the third transmission module is used for preferentially transmitting the video monitoring data containing the suspicious targets to the central supervision end through the multiplexing channel according to the spatial movement sequence of the suspicious targets when the total occurrence frequency of the suspicious targets is more than one time, the suspicious targets are detected to pass through at least two local areas, and more than one suspicious target is judged;
and the combination module is used for combining the video monitoring data received by the central monitor one by one according to the sequence of time or the sequence of spatial movement.
The video monitoring method and device based on multiplexing provided by the embodiment of the invention have the following beneficial effects: the comprehensive coverage of monitoring of the target place is ensured, and the contribution degree of the total times of occurrence of the suspicious target is improved, namely the implementation precision of the subsequent steps is improved, thereby being beneficial to comprehensively improving the monitoring capability of the whole monitoring system; the early warning of the central supervision end can be carried out in advance, and the response can be conveniently and quickly made; by transmitting according to the sequence of a time axis, the video surveillance can be realized when only one suspicious target passes through different local areas, and after the suspicious target is transmitted to a central surveillance end, the suspicious target can be directly viewed according to the sequence of actions of the suspicious target; the video monitoring data containing the suspicious targets are preferentially transmitted to the central monitoring end through the multiplexing channel according to the spatial moving sequence of the suspicious targets, the cooperative case can be distinguished, the corresponding video monitoring data are transmitted to the central monitoring end according to different work division positions, the viewing efficiency is improved, the main suspicious targets are directly hit, and the central monitoring end personnel can make a timely and quick response after viewing when facing a plurality of people.
Drawings
Fig. 1 is a main flow diagram of a multiplexing-based video surveillance method.
Fig. 2 is a flow chart of real-time detection of suspicious objects in a plurality of video surveillance data of a target site.
Fig. 3 is a flowchart of controlling the actions of the image capturing device in the surrounding area of the local area where the suspicious target is located, so that the capturing range overlaps with the preset area in the area where the suspicious target appears.
Fig. 4 is a flowchart of transmitting video surveillance data containing suspicious targets to a central surveillance end through a multiplexing channel according to the appearance time sequence of the suspicious targets.
Fig. 5 is a flow chart of the video surveillance data including the suspicious object being preferentially transmitted to the central supervising end via the multiplexing channel according to the spatial moving order of the suspicious object.
Fig. 6 is a main structural diagram of a video monitoring apparatus based on multiplexing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
The invention provides a video monitoring method and a device based on multiplexing, which solve the technical problem in the background technology.
As shown in fig. 1, a main flow chart of a multiplexing-based video monitoring method according to an embodiment of the present invention is provided, where the multiplexing-based video monitoring method includes:
step S10: detecting whether a suspicious target appears in a plurality of video monitoring data of a target place in real time, and judging whether the total times of appearance of the suspicious target is more than one time based on the plurality of video monitoring data;
step S11: when the total number of times of the suspicious target appearing is only one time, controlling the action of image acquisition equipment in the surrounding area of the local area where the suspicious target is located, so that the acquisition range of the image acquisition equipment is overlapped with the preset area in the area where the suspicious target appears;
step S12: when the total occurrence frequency of the suspicious targets is more than one time and the suspicious targets are detected to be only located in the same local area, the video monitoring data containing the suspicious targets located in the same local area are preferentially transmitted to a central monitoring end through a multiplexing channel;
step S13: when the total number of times of the suspicious targets is more than one, the suspicious targets are detected to pass through at least two local areas, and the number of the suspicious targets is only one, the video monitoring data containing the suspicious targets are transmitted to a central monitoring end through a multiplexing channel according to the appearance time sequence of the suspicious targets;
and step S14: when the total number of times of occurrence of the suspicious target is more than one time, the suspicious target is detected to pass through at least two local areas, and more than one suspicious target is judged, video monitoring data containing the suspicious target is preferentially transmitted to a central monitoring end through a multiplexing channel according to the spatial movement sequence of the suspicious target;
step S15: the video monitoring data received by the central monitoring end are combined one by one according to the time sequence or the space moving sequence, wherein the corresponding combination module 600 in the system can be arranged at the central monitoring end, and the video monitoring data interaction can also be directly realized between the central monitoring end and the central monitoring end; the combination can be realized by combining the monitoring video data in a single area, namely the monitoring video or the framing image, to form complete video evidence, and the set priority transmission sequence does not hinder the viewing of the central supervision terminal before the combination.
When the method is applied, whether the suspicious target appears in the multiple video monitoring data of the target site is detected in real time, and when the total number of times of the suspicious target appearing is only one time, the actions of the image acquisition equipment in the surrounding area of the local area where the suspicious target is located are controlled, so that the acquisition range of the image acquisition equipment is overlapped with the preset area in the area where the suspicious target appears, the probability of a monitoring blind area can be effectively reduced, the comprehensive coverage of the target site monitoring is ensured, the contribution degree of the suspicious target appearing total number of times can be improved, namely, the implementation precision of the subsequent steps is improved, and the monitoring capability of the whole monitoring system is favorably and comprehensively improved; when the total occurrence frequency of the suspicious target is more than one time and the suspicious target is detected to be only located in the same local area, the video monitoring data containing the suspicious target in the same local area is preferentially transmitted to the central supervision terminal through the multiplexing channel, so that the early warning of the central supervision terminal can be carried out in advance, and the response can be conveniently and rapidly made; when the total times of the suspicious targets are more than one time, the suspicious targets are detected to pass through at least two local areas, and only one suspicious target is judged, video monitoring data containing the suspicious target are transmitted to a central monitoring end through a multiplexing channel according to the time sequence of the occurrence of the suspicious target, good video monitoring can be realized when only one suspicious target passes through different local areas by transmitting according to the sequence of a time axis, and the suspicious target can be directly viewed according to the sequence of actions of the suspicious target after being transmitted to the central monitoring end; when the total times of appearance of the suspicious target is more than once, the suspicious target is detected to pass through at least two local areas, and more than one suspicious target is judged, video monitoring data containing the suspicious target is preferentially transmitted to the central monitoring end through the multiplexing channel according to the spatial moving sequence of the suspicious target, a cooperative case can be distinguished, the corresponding video monitoring data are transmitted to the central monitoring end according to different work division positions, the checking efficiency is improved, the main suspicious target is directly hit, and the central monitoring end personnel can also make a timely and quick response after watching when facing a plurality of people.
As shown in fig. 2, as a preferred embodiment of the present invention, the detecting whether a suspicious target appears in a plurality of video monitoring data of a target location in real time specifically includes:
step S101: acquiring identification characteristics, wherein the identification characteristics at least comprise preset face data and living body action characteristics, and the living body action characteristics comprise that the living body stays for a preset time and repeatedly moves for a preset number of times;
step S102: detecting whether video monitoring data acquired by a plurality of image acquisition devices based on a target place contains preset face data or not;
step S103: if yes, judging that a suspicious target appears in the corresponding video monitoring data;
step S104: if not, further judging whether the actions of the living organisms contained in the plurality of image acquisition devices comprise the types of the living organism action characteristics, and if so, judging that suspicious targets appear in the corresponding video monitoring data.
It can be understood that the type of the living body motion feature here is that, namely, the suspicious object stays in the target place for a long time and repeatedly moves for a preset number of times, and the suspicious object on the surface is repeatedly stayed near the target place for viewing or peeping, where the suspicious object is not limited to a person, but may be a machine such as an unmanned aerial vehicle, and the preset face data here is a face image of some social hazard persons that has been disclosed, and the surface has obtained privacy permission.
As a preferred embodiment of the present invention, before detecting whether a suspicious target appears in a plurality of video surveillance data of a target site in real time, the method further includes:
step S20: the multiplexing transmission channel between the central supervision terminal and at least one image acquisition device of each local area corresponding to each target site is established, the multiplexing technology is to combine a plurality of signals to transmit on one physical channel, in order to effectively utilize the communication line, it is desirable that one channel simultaneously transmit a plurality of signals, the installation and maintenance cost of the cable can be greatly saved when the signals are transmitted in a long distance, but it should be recognized that the transmission efficiency of a single channel (channel) is still influenced by the bandwidth and the transmission stability, so the transmission priority in the subsequent embodiments is necessary to be distinguished.
As a preferred embodiment of the present invention, the determining whether the total number of times of occurrence of the suspicious target is greater than one time based on the plurality of video monitoring data specifically includes:
step S105: detecting whether a suspicious target in each video monitoring data corresponding to each local area appears after disappearing in a frame picture, and if so, determining that the suspicious target appears at least twice in a single video monitoring data corresponding to a single local area;
step S106: detecting whether a suspicious target in each video monitoring data corresponding to each local area disappears after the suspicious target disappears in a frame picture, if so, determining that the suspicious target appears once in a single video monitoring data corresponding to a single local area;
step S107: and accumulating and counting the times of suspicious target occurrence in each video monitoring data corresponding to each local area.
In this embodiment, when the method is applied, whether a suspicious target in each video monitoring data corresponding to each local area disappears in a frame picture and then appears or does not appear, the detection may be identified by a pre-trained Convolutional Neural Network (CNN), which is one of the most successful fields of deep learning algorithm application, the convolutional neural network includes a one-dimensional convolutional neural network, a two-dimensional convolutional neural network and a three-dimensional convolutional neural network, the one-dimensional convolutional neural network is mainly used for data processing of sequence classes, the two-dimensional convolutional neural network is often used for identification of image texts, and the three-dimensional convolutional neural network is mainly used for identification of medical images and video data, in the field of deep learning, the verified convolutional neural network has achieved great success in the fields of image recognition, video recognition and voice recognition.
As a preferred embodiment of the present invention, when the total number of times of the suspicious object appearing is only one, the method further comprises:
step S30: and when the suspicious target is detected to appear in any video monitoring data, transmitting a monitoring picture containing the first appearance of the suspicious target to the central monitoring terminal based on the corresponding transmission channel.
When the method and the device are applied, when the suspicious target is detected to appear in any video monitoring data, the monitoring picture containing the first appearance of the suspicious target is transmitted to the central supervision terminal based on the corresponding transmission channel, so that the early warning of the central supervision terminal can be performed in advance, and the response can be conveniently and quickly made.
As shown in fig. 3, as a preferred embodiment of the present invention, when the total number of times of occurrence of the suspicious target is only one, the controlling the image capturing device in the surrounding area of the local area where the suspicious target is located to operate so that the capturing range overlaps with the preset area in the area where the suspicious target appears specifically includes:
step S111: locating a local area in which a suspicious target appears;
step S112: defining an area where a circle with the local area as the center of a circle and the radius as a preset radius is located as a surrounding area;
step S113: acquiring a moving track of a suspicious target in video monitoring data, controlling an acquisition end of image acquisition equipment in a surrounding area directly opposite to the moving track to directly face the moving track or have an intersection point with a forward extension line of the moving track when a local characteristic of the suspicious target is increased and then started to be decreased in a monitoring picture corresponding to the video monitoring data, controlling the local characteristic of the suspicious target to be increased and then decreased, for example, when an object passes through the image acquisition equipment, generally speaking, the face of the object is increased and then gradually decreased in the monitoring picture along with the increase and decrease of the distance, and controlling the acquisition end of the image acquisition equipment in the surrounding area directly opposite to the moving track or have an intersection point with the forward extension line of the moving track when the face of the object is increased and then started to be decreased, the detailed condition of the boundary position between the local areas can be well monitored from other local areas;
step S114: the image acquisition equipment in the local areas on two sides of the peripheral area opposite to the moving track is controlled to deflect in a preset rotation period, so that the acquisition range of the image acquisition equipment covers the peripheral area opposite to the moving track, namely the peripheral area opposite to the moving track can be ensured not to be influenced by the change of the working state of the image acquisition equipment to the maximum extent.
It should be understood that, when the total number of times of occurrence of the suspicious object is only one, considering the number of the image capturing devices equipped for each local area, the operating conditions of the image capturing devices, and the like, there may be a monitoring blind area, for example, between two adjacent local areas, therefore, the action of the image acquisition equipment of the surrounding area of the local area where the suspicious target is located is controlled, so that the acquisition range of the image acquisition equipment is overlapped with the preset area in the area where the suspicious target appears, the probability of monitoring blind areas can be effectively reduced, the anti-reconnaissance behaviors of some suspicious objects with rich experience are avoided, the comprehensive coverage of target site monitoring is ensured, and the implementation of the embodiment is worthy of improving the contribution degree of the total times of appearance of the suspicious target, the implementation precision of the subsequent steps is improved, and the monitoring capability of the whole monitoring system is improved comprehensively.
As a preferred embodiment of the present invention, when the total number of times of occurrence of suspicious targets is greater than one and it is detected that the suspicious targets are located only in the same local area, the preferentially transmitting the video monitoring data containing the suspicious targets located in the same local area to the central monitoring end through the multiplexing channel specifically includes:
step S121: when the total number of times of the suspicious targets is more than one time, continuously detecting whether the suspicious targets only appear in the same local area;
step S122: if yes, stopping data feedback of the image acquisition equipment in other local areas in the multiplexing channel, and preferentially transmitting the video monitoring data containing the suspicious target in the same local area to a central supervision end through the multiplexing channel.
It can be understood that, by the suspicious target appearing only once and in the same local area, it is obvious that the corresponding video monitoring data should be preferentially transmitted to the central supervision terminal, be preferentially viewed, and then transmit the data of the image acquisition devices of other local areas in the multiplexing channel, so that the video data can be preferentially transmitted even if the multiplexing channel has a poor broadband quality, and the central supervision terminal can conveniently and rapidly make a response in time after being viewed.
As shown in fig. 4, as a preferred embodiment of the present invention, when the total number of times of occurrence of the suspicious target is greater than one, and it is detected that the suspicious target passes through at least two local areas, and it is determined that the suspicious target is only one, the transmitting the video monitoring data including the suspicious target to the central monitoring end through the multiplexing channel according to the sequence of the occurrence times of the suspicious target specifically includes:
step S131: when the total number of times of occurrence of the suspicious targets is more than one time, detecting whether the suspicious targets exist and are only one and the suspicious targets pass through at least two local areas;
step S132: if yes, the transmission sequence coding is carried out on the monitoring video data with the suspicious target according to the sequence of the time shaft, and the coded monitoring video data are transmitted to the central monitoring end through the multiplexing channel in sequence.
This embodiment is when using, through transmitting according to the order of time axis, can realize only one and fine video surveillance when the local area of difference to suspicious target, transmit to central supervision end after, can come directly to look over according to this suspicious target precedence order of action, make things convenient for the timely quick response of making a response after the central supervision end personnel watch.
As shown in fig. 5, this embodiment is a functional extension performed on the basis of the foregoing embodiment, and as a preferred embodiment of the present invention, the preferentially transmitting the video monitoring data including the suspicious object to the central monitoring end via the multiplexing channel according to the spatial movement sequence of the suspicious object specifically includes:
step S141: according to the local area where at least two suspicious targets appear simultaneously for the first time, moving at least one suspicious target to another local area, and constructing a suspicious target space moving track;
step S142: and transmitting the video monitoring data containing the suspicious target to a central monitoring end through a multiplexing channel according to the space moving track of the suspicious target.
Specifically, according to the foregoing embodiment, the monitoring video data is encoded according to the sequence of the spatial movement trajectory, the video monitoring data including the suspicious target is preferentially transmitted to the central monitoring end through the multiplexing channel according to the spatial movement trajectory of the suspicious target, when a plurality of suspicious targets work cooperatively ("crime"), for example, two suspicious cooperative targets exist, in this case, two persons generally arrive at a certain local area at the same time, and then one person generally receives or catches the wind in the local area, and the other person is responsible for continuing to enter another local area and then work ("crime"), which is different from the time sequence, but actually is also a representation of the time sequence, so that the cooperative crime can be distinguished, and the corresponding video monitoring data is transmitted to the central monitoring end according to different sequences of the division positions, the method is favorable for improving the viewing efficiency, directly hits main suspicious targets, and is convenient for central supervision personnel to make timely and quick response after watching when facing a plurality of people.
As another preferred embodiment of the present invention, as shown in fig. 6, in another aspect, a multiplexing-based video surveillance apparatus, the apparatus comprising:
the detection and judgment module 100 is configured to detect whether a suspicious target appears in multiple video monitoring data of a target site in real time, and judge whether the total number of times of appearance of the suspicious target is greater than one time based on the multiple video monitoring data;
the control module 200 is configured to control an image acquisition device in a surrounding area of a local area where the suspicious target is located to act so that an acquisition range of the image acquisition device overlaps a preset area in the area where the suspicious target appears when the total number of times of appearance of the suspicious target is only one;
the first transmission module 300 is configured to, when the total number of times of occurrence of suspicious targets is greater than one and it is detected that the suspicious targets are located in the same local area only, preferentially transmit video monitoring data containing the suspicious targets located in the same local area to the central monitoring end through the multiplexing channel;
a second transmission module 400, configured to, when the total number of times of occurrence of the suspicious target is greater than one, detect that the suspicious target passes through at least two local areas, and determine that the suspicious target is only one, transmit the video monitoring data including the suspicious target to the central monitoring end through the multiplexing channel according to the sequence of occurrence times of the suspicious target;
a third transmission module 500, configured to, when the total number of times of occurrence of the suspicious target is greater than one, detect that the suspicious target passes through at least two local areas, and determine that there is more than one suspicious target, preferentially transmit the video monitoring data including the suspicious target to the central monitoring end through the multiplexing channel according to the spatial movement sequence of the suspicious target;
and the combining module 600 is configured to combine the video monitoring data received by the central monitor one by one according to the chronological order or the spatial movement order.
The above embodiments of the present invention provide a video monitoring method based on multiplexing, and provide a video monitoring apparatus based on multiplexing based on the video monitoring method based on multiplexing;
1) whether suspicious targets appear in a plurality of video monitoring data of a target place or not is detected in real time, when the total number of times of appearance of the suspicious targets is only one time, the action of image acquisition equipment in the surrounding area of the local area where the suspicious targets are located is controlled, so that the acquisition range of the image acquisition equipment is overlapped with the preset area in the area where the suspicious targets appear, the probability of a monitoring blind area can be effectively reduced, the comprehensive coverage of monitoring the target place is ensured, the contribution degree of the suspicious targets to the total number of times of appearance can be improved, namely, the implementation precision of subsequent steps is improved, and the monitoring capability of the whole monitoring system is favorably and comprehensively improved;
2) when the total occurrence frequency of the suspicious target is more than one time and the suspicious target is detected to be only located in the same local area, the video monitoring data containing the suspicious target in the same local area is preferentially transmitted to the central supervision terminal through the multiplexing channel, so that the early warning of the central supervision terminal can be carried out in advance, and the response can be conveniently and rapidly made;
3) when the total times of the suspicious targets are more than one time, the suspicious targets are detected to pass through at least two local areas, and only one suspicious target is judged, video monitoring data containing the suspicious target are transmitted to a central monitoring end through a multiplexing channel according to the time sequence of the occurrence of the suspicious target, good video monitoring can be realized when only one suspicious target passes through different local areas by transmitting according to the sequence of a time axis, and the suspicious target can be directly viewed according to the sequence of actions of the suspicious target after being transmitted to the central monitoring end;
4) when the total times of appearance of the suspicious target is more than once, the suspicious target is detected to pass through at least two local areas, and more than one suspicious target is judged, video monitoring data containing the suspicious target is preferentially transmitted to the central monitoring end through the multiplexing channel according to the spatial moving sequence of the suspicious target, a cooperative case can be distinguished, the corresponding video monitoring data are transmitted to the central monitoring end according to different work division positions, the checking efficiency is improved, the main suspicious target is directly hit, and the central monitoring end personnel can also make a timely and quick response after watching when facing a plurality of people.
In order to load the above method and system to operate successfully, the system may include more or less components than those described above, or combine some components, or different components, in addition to the various modules described above, for example, input/output devices, network access devices, buses, processors, memories, and the like.
The processor may be a Central Processing Unit (CPU), other general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like that is the control center for the system and that connects the various components using various interfaces and lines.
The memory may be used to store computer and system programs and/or modules, and the processor may perform the various functions described above by operating or executing the computer programs and/or modules stored in the memory and invoking data stored in the memory. The memory may mainly include a program storage area and a data storage area, where the program storage area may store an operating system, an application program required by at least one function (such as an information collection template presentation function, a product information distribution function, and the like), and the like. The storage data area may store data created according to the use of the berth-state display system (e.g., product information acquisition templates corresponding to different product types, product information that needs to be issued by different product providers, etc.), and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash memory card (FlashCard), at least one disk storage device, a flash memory device, or other volatile solid state storage device.
It should be understood that, although the steps in the flowcharts of the embodiments of the present invention are shown in sequence as indicated by the arrows, the steps are not necessarily executed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in various embodiments may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A method for multiplexing-based video surveillance, the method comprising:
detecting whether a suspicious target appears in a plurality of video monitoring data of a target place in real time, and judging whether the total times of appearance of the suspicious target is more than one time based on the plurality of video monitoring data;
when the total number of times of the suspicious target appearing is only one time, controlling the action of image acquisition equipment in the surrounding area of the local area where the suspicious target is located, so that the acquisition range of the image acquisition equipment is overlapped with the preset area in the area where the suspicious target appears;
when the total occurrence frequency of the suspicious targets is more than one time and the suspicious targets are detected to be only located in the same local area, the video monitoring data containing the suspicious targets located in the same local area are preferentially transmitted to a central monitoring end through a multiplexing channel;
when the total number of times of the suspicious targets is more than one, the suspicious targets are detected to pass through at least two local areas, and the number of the suspicious targets is only one, the video monitoring data containing the suspicious targets are transmitted to a central monitoring end through a multiplexing channel according to the appearance time sequence of the suspicious targets;
when the total number of times of occurrence of the suspicious target is more than one time, the suspicious target is detected to pass through at least two local areas, and more than one suspicious target is judged, video monitoring data containing the suspicious target is preferentially transmitted to a central monitoring end through a multiplexing channel according to the spatial movement sequence of the suspicious target;
and combining the video monitoring data received by the central monitor one by one according to the sequence of time or the sequence of space movement.
2. The multiplexing-based video surveillance method of claim 1, wherein the detecting whether a suspicious object appears in the video surveillance data of the target site in real time specifically comprises:
acquiring identification characteristics, wherein the identification characteristics at least comprise preset face data and living body action characteristics, and the living body action characteristics comprise that the living body stays for a preset time and repeatedly moves for a preset number of times;
detecting whether video monitoring data acquired by a plurality of image acquisition devices based on a target place contains preset face data or not;
if yes, judging that a suspicious target appears in the corresponding video monitoring data;
if not, further judging whether the actions of the living organisms contained in the plurality of image acquisition devices comprise the types of the living organism action characteristics, and if so, judging that suspicious targets appear in the corresponding video monitoring data.
3. The multiplexing-based video surveillance method of claim 2, wherein prior to detecting in real-time whether a suspicious target is present in the plurality of video surveillance data of the target site, the method further comprises:
and establishing a multiplexing transmission channel between the multiplexing transmission channel and the central supervision terminal for at least one image acquisition device of each local area corresponding to each target site.
4. The multiplexing-based video surveillance method of claim 1, wherein the determining whether the total number of occurrences of suspicious objects is greater than one based on the plurality of video surveillance data specifically comprises:
detecting whether a suspicious target in each video monitoring data corresponding to each local area appears after disappearing in a frame picture, and if so, determining that the suspicious target appears at least twice in a single video monitoring data corresponding to a single local area;
detecting whether a suspicious target in each video monitoring data corresponding to each local area disappears after the suspicious target disappears in a frame picture, if so, determining that the suspicious target appears once in a single video monitoring data corresponding to a single local area;
and accumulating and counting the times of suspicious target occurrence in each video monitoring data corresponding to each local area.
5. The multiplexing-based video surveillance method of claim 1, wherein when the total number of occurrences of a suspicious object is only one, the method further comprises: and when the suspicious target is detected to appear in any video monitoring data, transmitting a monitoring picture containing the first appearance of the suspicious target to the central monitoring terminal based on the corresponding transmission channel.
6. The video monitoring method based on multiplexing according to any one of claims 1-5, wherein when the total number of times of the suspicious object appearing is only one, controlling the image capturing device in the surrounding area of the local area where the suspicious object is located to act such that the capturing range overlaps with the preset area in the area where the suspicious object appears specifically comprises:
locating a local area in which a suspicious target appears;
defining an area where a circle with the local area as the center of a circle and the radius as a preset radius is located as a surrounding area;
the method comprises the steps of obtaining the moving track of a suspicious target in video monitoring data, and controlling the acquisition end of image acquisition equipment in the surrounding area opposite to the moving track to be opposite to the moving track or have an intersection point with the forward extension line of the moving track when the local feature of the suspicious target is increased and then reduced in a monitoring picture corresponding to the video monitoring data;
and controlling the image acquisition equipment in the local areas on two sides of the peripheral area opposite to the movable track to deflect in a preset rotation period so that the acquisition range of the image acquisition equipment covers the peripheral area opposite to the movable track.
7. The method according to claim 1, wherein when the total number of occurrences of the suspicious object is greater than one and it is detected that the suspicious object is located in the same local area only, the preferentially transmitting the video surveillance data containing the suspicious object located in the same local area to the central surveillance end via the multiplexing channel specifically comprises:
when the total number of times of the suspicious targets is more than one time, continuously detecting whether the suspicious targets only appear in the same local area;
if yes, stopping data feedback of the image acquisition equipment in other local areas in the multiplexing channel, and preferentially transmitting the video monitoring data containing the suspicious target in the same local area to a central supervision end through the multiplexing channel.
8. The method according to claim 1, 2, 3, 4, 5, or 7, wherein when the total number of occurrences of suspicious objects is greater than one, and it is detected that the suspicious objects pass through at least two local areas, and it is determined that there is more than one suspicious object, the method preferentially transmits the video surveillance data including the suspicious objects to the central surveillance terminal through the multiplexing channel according to the spatial movement sequence of the suspicious objects specifically comprises:
when the total number of times of occurrence of the suspicious targets is more than one time, detecting whether the suspicious targets exist and are only one and the suspicious targets pass through at least two local areas;
if yes, the transmission sequence coding is carried out on the monitoring video data with the suspicious target according to the sequence of the time shaft, and the coded monitoring video data are transmitted to the central monitoring end through the multiplexing channel in sequence.
9. The multiplexing-based video surveillance method according to claim 1, 2, 3, 4, 5, or 7, wherein the preferentially transmitting the video surveillance data containing the suspicious object to the central surveillance end via the multiplexing channel according to the spatial movement order of the suspicious object specifically comprises:
according to the local area where at least two suspicious targets appear simultaneously for the first time, moving at least one suspicious target to another local area, and constructing a suspicious target space moving track;
and transmitting the video monitoring data containing the suspicious target to a central monitoring end through a multiplexing channel according to the space moving track of the suspicious target.
10. A multiplexing-based video surveillance apparatus, the apparatus comprising:
the detection and judgment module is used for detecting whether suspicious targets appear in a plurality of video monitoring data of a target place in real time and judging whether the total times of appearance of the suspicious targets are more than one time based on the plurality of video monitoring data;
the control module is used for controlling the action of image acquisition equipment in the surrounding area of the local area where the suspicious target is located when the total occurrence frequency of the suspicious target is only one time, so that the acquisition range of the image acquisition equipment is overlapped with the preset area in the area where the suspicious target appears;
the first transmission module is used for transmitting the video monitoring data containing the suspicious targets in the same local area to the central supervision terminal through a multiplexing channel preferentially when the total occurrence frequency of the suspicious targets is more than one time and the suspicious targets are detected to be only located in the same local area;
the second transmission module is used for transmitting the video monitoring data containing the suspicious targets to the central supervision terminal through the multiplexing channel according to the appearance sequence of the suspicious targets when the total number of times of the suspicious targets is more than one, the suspicious targets are detected to pass through at least two local areas, and only one suspicious target is judged;
the third transmission module is used for preferentially transmitting the video monitoring data containing the suspicious targets to the central supervision end through the multiplexing channel according to the spatial movement sequence of the suspicious targets when the total occurrence frequency of the suspicious targets is more than one time, the suspicious targets are detected to pass through at least two local areas, and more than one suspicious target is judged;
and the combination module is used for combining the video monitoring data received by the central monitor one by one according to the sequence of time or the sequence of spatial movement.
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