WO2017096761A1

WO2017096761A1 - Method, device and system for looking for target object on basis of surveillance cameras

Info

Publication number: WO2017096761A1
Application number: PCT/CN2016/083273
Authority: WO
Inventors: 叶蔚然; 练斌; 陈树毅
Original assignee: 杭州海康威视数字技术股份有限公司
Priority date: 2015-12-10
Filing date: 2016-05-25
Publication date: 2017-06-15
Also published as: CN106878666B; CN106878666A

Abstract

A method, device and system for looking for a target object on the basis of surveillance cameras. The method comprises: a tracking terminal sends to a surveillance camera cluster identifier information of a target terminal to be tracked; the tracking terminal receives monitored information returned by multiple surveillance cameras in the surveillance camera cluster; the tracking terminal obtains a set of video images according to the matching result of the information about the time when each surveillance camera detects the target terminal and the time when a surveillance video is the photographed; the tracking terminal analyzes video images included in the set of video images according to a predefined rule, and determines, from the video images, a target object carrying the target terminal. The preset application solves the technical problem in the prior art of incapability of learning about a target object carrying a target terminal within a monitored region during the process of looking for a target object on the basis of surveillance cameras.

Description

Method, device and system for finding target object based on surveillance camera

The present application claims priority to Chinese Patent Application No. 201510917234.7, entitled "Method, Apparatus and System for Finding Target Objects Based on Surveillance Cameras", on December 10, 2015, the entire contents of which are hereby incorporated by reference. Combined in this application.

Technical field

The present application relates to the field of security monitoring, and in particular to a method, device and system for finding a target object based on a surveillance camera.

Background technique

The security monitoring system is a system that uses video detection technology to display and record live images in the monitoring and fortification area. It can reflect the monitored objects in real time, image and reality, mainly including front-end equipment, transmission equipment, processing/control equipment and records/ The display device is divided into four parts, so that it can be monitored for a long time instead of manual, and people can see everything that actually happens in the monitored area.

In the current security monitoring system, the position information of the camera is differentiated by on-screen menu adjustment, but this method is greatly influenced by subjective factors, has high requirements for operators, and cannot visually display the position of the camera. At the same time, the camera does not With the recognition function, it is impossible to know from the live image that the target terminal carried by the target object in the monitoring area can only be determined by human beings, which results in a large workload of the monitoring personnel, and it is impossible to track the target object in time, which further causes delay in time.

In the process of searching for a target object based on a surveillance camera in the prior art, the problem of carrying the target object of the target terminal in the monitoring area cannot be known, and an effective solution has not been proposed yet.

Summary of the invention

The embodiment of the present application provides a method, an apparatus, and a system for searching for a target object based on a surveillance camera, so as to at least solve the problem of searching for a target object based on a surveillance camera in the prior art, and failing to know that the target terminal is carried in the monitoring area. The technical problem of the target object.

According to an aspect of the embodiments of the present application, a method for finding a target object based on a surveillance camera includes: tracking a terminal to send identification information of a target terminal to be tracked to a surveillance camera cluster, wherein monitoring in the surveillance camera cluster The camera is provided with a wireless probe device, and the wireless probe device includes a directional antenna, the orientation of the emitting surface of the directional antenna and the imaging side of the surveillance camera The tracking terminal receives the monitoring information returned by the plurality of surveillance cameras in the surveillance camera cluster, wherein the plurality of surveillance cameras are cameras that monitor the target terminal through the wireless probe device, and the monitoring information includes at least: the time when the target terminal is monitored. The tracking terminal acquires a video image set according to a matching result of the time information when each monitoring camera detects the target terminal and the shooting time of the captured monitoring video; and the tracking terminal analyzes the video image included in the video image set according to a predetermined rule. The target object carrying the target terminal is determined from the video image.

According to another aspect of the embodiments of the present application, a system for finding a target object based on a surveillance camera includes: a surveillance camera cluster, each of the surveillance cameras is provided with a wireless probe device, and a wireless probe The device includes a directional antenna. The orientation of the transmitting surface of the directional antenna is the same as the imaging direction of the surveillance camera. The surveillance camera is configured to receive the identification information of the target terminal to be tracked. When the target terminal enters the detection area through the wireless probe device, the generation is generated. Monitoring information, wherein the monitoring information includes at least: time information when the target terminal is monitored; the tracking terminal communicates with the monitoring camera cluster, and is used to send the identification information of the target terminal to be tracked to the surveillance camera cluster, and the monitoring camera cluster The monitoring information returned by the surveillance camera acquires a video image set, and analyzes the video image included in the video image set according to a predetermined rule, and determines the target object carrying the target terminal from the video image.

According to still another aspect of the embodiments of the present application, a system for finding a target object based on a surveillance camera includes: a surveillance camera cluster, and each of the surveillance cameras in the surveillance camera cluster is provided with a wireless probe device, and wireless probe The needle device comprises a directional antenna, the direction of the emitting surface of the directional antenna is the same as the imaging direction of the surveillance camera, and the monitoring camera is configured to receive the identification information of the target terminal to be tracked, and when the target terminal enters the detection area through the wireless probe device, Generating monitoring information, where the monitoring information includes at least: time information when the target terminal is detected; the video server communicates with the monitoring camera cluster, and is used to save the monitoring video captured by each monitoring camera in the surveillance camera cluster; Communicate with the surveillance camera cluster and the video server respectively, and send the identification information of the target terminal to be tracked to the surveillance camera cluster, and monitor the time information of the target terminal and the captured surveillance video according to the plurality of surveillance cameras in the surveillance camera cluster. When shooting Matching result, obtaining a set of video images, and analyze the video image of a video image included in the set of predetermined rules to determine a target object carrying the target terminal from the video image.

According to still another aspect of the embodiments of the present application, a monitoring camera is also provided to find a mesh. The device of the target object includes: a sending module, configured to: the tracking terminal sends the identification information of the target terminal to be tracked to the monitoring camera cluster, wherein the monitoring camera in the monitoring camera cluster is provided with a wireless probe device, and the wireless probe device includes The directional antenna has the same emission direction of the directional antenna as the imaging direction of the surveillance camera; the receiving module is configured to track the monitoring information returned by the plurality of surveillance cameras in the surveillance camera cluster, wherein the plurality of surveillance cameras pass the wireless probe The device monitors the camera of the target terminal, and the monitoring information includes at least: time information when the target terminal is detected; and an acquisition module, configured to track the time information of the terminal when the target terminal is monitored according to each monitoring camera and the shooting of the captured monitoring video. The matching result of the time is obtained, and the determining module is configured to: the tracking terminal analyzes the video image included in the video image set according to a predetermined rule, and determines the target object that carries the target terminal from the video image.

The embodiment of the present application further provides a storage medium for storing an application, which is used to execute at runtime: a method for finding a target object based on a surveillance camera provided by an embodiment of the present application.

The embodiment of the present application further provides an application for performing a method for searching for a target object based on a surveillance camera provided by the embodiment of the present application.

The embodiment of the present application further provides a terminal, including: a processor, a memory, a communication interface, and a bus; the processor, the memory, and the communication interface are connected through the bus and complete communication with each other; The memory stores executable program code; the processor executes a program corresponding to the executable program code by reading the executable program code stored in the memory for execution: based on the provided by the embodiment of the present application A method of monitoring a camera to find a target object.

In the embodiment of the present application, the tracking information of the target terminal to be tracked is sent to the monitoring camera cluster by the tracking terminal, and the monitoring information returned by the plurality of monitoring cameras in the monitoring camera cluster is received, and the target terminal is monitored according to each monitoring camera. And matching the captured time information with the captured time of the captured video, acquiring a video image set, analyzing the video image included in the video image set according to a predetermined rule, and determining the target object carrying the target terminal from the video image, thereby realizing Knowing the purpose of the target object carrying the target terminal in the monitoring area, and further determining the target object carrying the target terminal, the purpose of tracking the target object can be achieved, thereby solving the problem in the prior art that the target object is searched based on the surveillance camera. The technical problem of carrying the target object of the target terminal in the monitoring area is known. Therefore, according to the above embodiment of the present application, The target terminal determines the target object and provides key clues for further tracking of the target object, so that after the target is locked, more monitoring cameras are used to track the target object in real time until the target object falls under the control of the relevant department. It plays an important role in the construction of a safe city.

DRAWINGS

In order to more clearly illustrate the embodiments of the present application and the technical solutions of the prior art, the following description of the embodiments and the drawings used in the prior art will be briefly introduced. Obviously, the drawings in the following description are only Some embodiments of the application may also be used to obtain other figures from those of ordinary skill in the art without departing from the scope of the invention.

1 is a flowchart of a method for querying a target object based on a surveillance camera according to an embodiment of the present application;

2 is a schematic diagram of an optional surveillance camera according to an embodiment of the present application;

3 is a schematic diagram of an operation principle of an optional surveillance camera according to an embodiment of the present application;

4 is a schematic diagram of an optional wireless probe device in accordance with an embodiment of the present application;

FIG. 5 is a schematic diagram of an optional navigation and positioning device according to an embodiment of the present application; FIG.

6 is a schematic diagram of a system for querying a target object based on a surveillance camera according to an embodiment of the present application;

7 is a schematic diagram of another system for querying a target object based on a surveillance camera according to an embodiment of the present application;

FIG. 8 is a schematic diagram of an apparatus for querying a target object based on a surveillance camera according to an embodiment of the present application.

detailed description

In order to make the objects, technical solutions, and advantages of the present application more comprehensible, the present application will be further described in detail below with reference to the accompanying drawings. It is apparent that the described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

Some of the nouns or terms that appear in the process of describing the embodiments of the present application are as follows:

GPS positioning device: The GPS chip receives data from multiple satellites. The data includes information such as ephemeris clock and satellite number. Since the position of the satellite is determined relative to the earth at a specific time, the distance between the receiver and the satellite can pass the signal. The ephemeris time difference is calculated, and the data of different satellites can be combined to know the specific position of the receiver, the speed of motion and other information.

Wireless probe device: A wifi device that can explore terminals with wifi function and obtain some basic information of the terminal device, such as MAC address and other related information.

Directional Antenna: An antenna that emits and receives electromagnetic waves that are particularly strong in one or more specific directions and that emit and receive electromagnetic waves in other directions that are zero or very small.

Example 1

In accordance with an embodiment of the present application, an embodiment of a method for tracking a target object based on a surveillance camera is provided, it being noted that the steps illustrated in the flowchart of the figures may be in a computer system such as a set of computer executable instructions The steps shown and described may be performed in a different order than the ones described herein, although the logical order is shown in the flowchart.

FIG. 1 is a flowchart of a method for tracking a target object based on a surveillance camera according to an embodiment of the present application. As shown in FIG. 1 , the method includes the following steps:

Step S102: The tracking terminal sends the identification information of the target terminal to be tracked to the monitoring camera cluster, wherein the monitoring camera in the monitoring camera cluster is provided with a wireless probe device, and the wireless probe device includes a directional antenna, and the transmitting surface of the directional antenna The orientation is the same as the camera orientation of the surveillance camera.

2 is a schematic diagram of an optional surveillance camera including a wireless probe device, a navigation and positioning device, a processor, and a video capture device according to an embodiment of the present application. The processor of the surveillance camera can communicate with the data center (ie, the tracking terminal described above) via the network. As shown in FIG. 2, in an optional application scenario, the relevant department provides the identification information of the terminal to be tracked, and the terminal to be tracked may be a stolen mobile phone, and the tracking terminal identifies the identification information of the terminal to be tracked through the network. Send to at least two surveillance cameras in the surveillance camera cluster.

It should be noted that the above wireless probe device may be a wifi device, an RFID device, an NFC device, or a Bluetooth device. The solution provided by the present application is discussed in detail below with the wireless probe device being a wifi device. The NFC device is a Near Field Communication device, and the RFID device is a Radio Frequency Identification device.

Specifically, the target terminal may be a smart terminal with a wifi function, such as a mobile phone, a tablet, or the like. The foregoing identification information may be a MAC address of the target terminal, but is not limited thereto, and other information for uniquely identifying the target terminal may achieve the purpose of the embodiment. The above surveillance camera cluster may include multiple surveillance cameras, and multiple surveillance cameras may communicate with the server.

It should be noted that the wireless probe device of the present application adopts a directional antenna, and ensures that the direction of the emitting surface of the directional antenna is the same as the imaging direction of the camera, and can be enhanced in the direction of video monitoring, and appropriately weakened in other directions. The coincidence of the video surveillance range and the probe detection range.

FIG. 3 is a schematic diagram of an optional working principle of a surveillance camera according to an embodiment of the present application. In an optional application scenario, as shown in FIG. 3, the diffusion angle of the forward detection of the directional antenna in the foregoing embodiment may be For β, the receiving sensitivity of the directional antenna in the direction of the diffusion angle is more than 20 dB higher than the sensitivity of other regions, and is converted to the detection distance, that is, the distance in other directions can be within 20 m, and the diffusion angle β (typically a fan shape of 45°) The target, which can be customized according to the requirements, can detect target terminals up to 150m away. According to the different lenses, the camera has a certain angle of view α (the angle of view of different cameras is determined by the focal length of the lens), and there is a certain monitoring area. For the monitoring area within 100 meters, all monitoring areas can be considered as The wireless probe device detects that, in addition, the detection area of the wireless probe device is relatively small, and only the region with a maximum radius of 20 m is outside the diffusion angle, and the proportion of the region in the monitoring region is estimated to be less than 30%. Therefore, it can be concluded that the target terminal within the monitoring range can be detected by the wireless probe device, and the target terminal detected by the wireless probe device is more than half of the possibility of appearing in the monitoring area, that is, It is said that the monitoring area and the detection area are highly coincident, which provides a very reliable basis for tracking the target terminal and locking the target object.

Step S104: The tracking terminal receives the monitoring information returned by the plurality of surveillance cameras in the surveillance camera cluster, wherein the plurality of surveillance cameras are cameras that monitor the target terminal through the wireless probe device, and the monitoring information includes at least: time when the target terminal is monitored. information.

Specifically, the foregoing time information may be a time when the target terminal appears in the detection area of the surveillance camera. In addition, the camera that monitors the target terminal by the wireless probe device is a camera that monitors the identification information of the target terminal to be tracked by the wireless probe device.

As shown in FIG. 2, in an optional application scenario, the processor of each surveillance camera in the surveillance camera cluster can determine whether the wireless probe device is monitored by the MAC address of the target terminal. The target terminal, in the case that it is determined that the wireless probe device monitors the target terminal, the processor sends the time information when the target terminal is monitored to the tracking terminal through the network.

In step S106, the tracking terminal acquires a video image set according to the matching result of the time information when each monitoring camera detects the target terminal and the shooting time of the captured monitoring video.

In an optional solution, the tracking terminal matches the time information returned by each monitoring camera with the shooting time of the captured monitoring video according to the time information when the monitoring of the target terminal returned by the plurality of monitoring cameras is received. , thereby obtaining a collection of video images containing the target object.

Step S108: The tracking terminal analyzes the video image included in the video image set according to a predetermined rule, and determines the target object carrying the target terminal from the video image.

In an optional solution, the tracking terminal may select a video image in the video image set corresponding to the time segment according to the time information when the target terminal is detected, and compare the feature data of the monitored object in the plurality of video images to determine The target object with the target terminal.

In the foregoing embodiment of the present application, the tracking information of the target terminal to be tracked is sent to the monitoring camera cluster by the tracking terminal, and the monitoring information returned by the plurality of monitoring cameras in the monitoring camera cluster is received, and the time when the target terminal is monitored according to the monitoring camera is received. The matching result of the information and the captured shooting time of the captured video, the video image set is acquired, and the video image included in the video image set is analyzed according to a predetermined rule, and the target object carrying the target terminal is determined from the video image, thereby realizing the monitoring The purpose of the target object carrying the target terminal in the area is further determined by the target object carrying the target terminal, so that the purpose of tracking the target object can be achieved, so that the monitoring of the target object based on the surveillance camera in the prior art cannot be known. The technical problem of carrying the target object of the target terminal in the area. Therefore, with the foregoing embodiment of the present application, it is possible to determine the target object according to the target terminal, and provide a key clue for further tracking the target object, so that after the target is locked, more monitoring cameras are used to perform real-time on the target object. Tracking until the target object falls into the control of the relevant department plays an important role in the construction of a safe city.

Optionally, in the foregoing embodiment of the present application, the step S106: the tracking terminal acquires the video image set according to the matching result of the time information when the monitoring camera detects the target terminal and the shooting time of the captured monitoring video, and includes the following steps:

Step S1062, the tracking terminal extracts from the monitoring video of the surveillance camera that monitors the target terminal. At least one video image, wherein the shooting time of the video image is the same as the time information corresponding to the monitoring of the target terminal; or the difference between the shooting time of the video image and the time information corresponding to the monitoring of the target terminal is within a predetermined time range Inside. That is, the tracking time of the at least one video image extracted by the tracking terminal from the monitoring video of the monitoring camera of the target terminal is the same as the time information corresponding to the monitoring of the target terminal, or the corresponding target terminal is monitored. The difference in time information is within a predetermined time range.

In an optional solution, the tracking terminal extracts, from the monitoring video, a video image whose shooting time is the same as the time information when the target terminal is detected, or the tracking terminal extracts the shooting time from the monitoring video and the time when the target terminal is monitored. A video image in which the time difference of information is within a predetermined time range.

It should be noted here that obtaining a video image whose difference value is within a predetermined time range can reduce the influence of the target object movement on determining the accuracy of the target object carrying the target terminal.

Through the above step S1062, the tracking terminal can determine the target object carrying the target terminal from any one or more video images by extracting the video image, thereby realizing that the target object carrying the target terminal is determined according to the time information when the target terminal is monitored. purpose.

Optionally, in the foregoing embodiment of the present application, the method further includes: before the tracking terminal obtains the video image set according to the matching result between the time information when the monitoring camera detects the target terminal and the shooting time of the captured monitoring video, the method further includes: The following steps:

Step S112, in the process of capturing the monitoring video, if the target terminal is detected, the video image captured when the target terminal is detected is saved, so that the tracking terminal reads the monitored target from the monitoring camera that monitors the target terminal. The video image taken at the terminal.

In an optional solution, when the surveillance camera captures the surveillance video, if the target terminal is detected, the video image captured when the target terminal is detected is saved, and the monitored target is added for each video image. The time stamp of the terminal, thereby facilitating the tracking of the video image captured by the terminal from the surveillance camera when the target terminal is detected.

Step S114: The monitoring camera transmits the captured monitoring video to the video server during the process of capturing the monitoring video, so that the tracking terminal acquires the monitoring video from the video server, and monitors The time information to the target terminal matches the shooting time of at least one video image included in the surveillance video.

As shown in FIG. 2, in an optional application scenario, the video capture device in the surveillance camera collects video images of all objects entering the monitoring area in real time, and the processor sends the monitoring video including the video image to the video server through the network. . The tracking terminal can obtain the monitoring video from the video server, and after acquiring the monitoring video of any one or more of the plurality of monitoring cameras, determine the shooting time of each video image in each monitoring video, and follow the video image according to the shooting time. Sort the shooting time. According to the time information when each monitoring camera detects the target object, each monitoring video is matched, and the video image whose shooting time matches the time information when the target terminal is detected is determined.

Through the above steps S112 to S114, the tracking terminal detects the video image captured when the target terminal is detected from the monitoring camera that monitors the target terminal, or the tracking terminal acquires the monitoring video from the video server, and monitors the target terminal. The time information of the time is matched with the shooting time of at least one video image included in the monitoring video, thereby achieving the purpose of acquiring the video image set according to the matching result.

Optionally, in the foregoing embodiment of the present application, in step S108, the tracking terminal analyzes the video image included in the video image set according to a predetermined rule, and determines, from the video image, the step of carrying the target object of the target terminal, including the following steps:

Step S1082: The tracking terminal extracts at least one video image from the video image set, and reads feature data of the monitoring object included in the at least one video image, and the feature data includes any one or more of the following data: the face of the monitoring object Feature attributes, gender feature attributes, clothing feature attributes, and body feature attributes.

Specifically, the feature data of the monitoring object may be eye mask, hairstyle, gender, wearing (for example, color and style of clothes and pants), face contour, pupil feature, face marking (for example, whether to wear glasses, a mask, etc.) ), walking posture, etc. can be used to distinguish the information of the monitored object.

Step S1084: The monitoring object having the same feature or the feature data matching degree equal to or greater than the predetermined matching value in the at least one video image is determined as the target object matching the target terminal.

In an optional solution, acquiring at least one video image whose shooting time matches the time information when the target terminal is detected, and extracting the number of features of the monitoring object included in the at least one video image According to the comparison, the feature data of all the monitoring objects in the at least one video image is compared, and the monitoring object having the same feature data or the feature data matching degree greater than or equal to the predetermined matching value in at least one video image is determined as the target matching the target terminal. Object.

It should be noted here that the influence of the target object transformation feature on the query result can be reduced by setting a predetermined matching value.

After the tracking terminal acquires the video image set, the tracking terminal extracts the features of all the monitoring objects in the at least one video image, and determines that the monitoring object having the same feature in the at least one video image matches the target terminal. The target object, thereby achieving the purpose of determining the target object carrying the target terminal from the video image.

Optionally, in the foregoing embodiment of the present application, in step S108, the tracking terminal analyzes the video image included in the video image set according to a predetermined rule, and determines the target object that carries the target terminal from the video image, including:

Step S1086: Query whether there is a single-person video image or a multi-person video image from the video image set, wherein the image content of the single-person video image includes only one monitoring object, and the detection object included in the image content of the multi-person video image The number is less than or equal to the preset value.

Step S1088, if a single-person video image or a multi-person video image is queried from the video image set, it is determined that the single-person video image or the multi-person video image includes a target object that matches the target terminal.

In an optional solution, if a single-person video image exists in the video image collection, and the image content of the single-person video image includes only one monitoring object, the monitoring object may be directly determined to match the target terminal. Target object.

In another optional solution, if there is a multi-person video image in the video image collection, and the number of monitoring objects included in the image content of the multi-person video image is less than or equal to a preset value, it may be determined that the monitoring object includes The target object needs to further read the feature data of the monitoring object included in the multi-person video to determine the target object.

Through the above steps S1086 to S1088, if a single-person video image or a multi-person video image is queried from the video image collection, it is determined that the single-person video image or the multi-person video image includes the target object matching the target terminal, thereby realizing The purpose of the target object carrying the target terminal is determined in the video image.

Optionally, in the foregoing embodiment of the present application, after acquiring the video image set in step S106, The method further includes the following steps:

Step S122, reading the shooting time of each video image in the video image set.

In step S124, the video image set is sorted in ascending or descending order according to the shooting time of each video image.

In step S126, the sorting result of the ascending or descending sorting is displayed on the corresponding time axis.

In an optional solution, according to the matching result, three video images are obtained from the surveillance videos of the plurality of surveillance cameras, namely, image 1, image 2, and image 3, and the shooting time of each video image is read. The shooting time of 1 is 12:00, the shooting time of image 2 is 14:30, and the shooting time of image 3 is 09:45. The three video images are sorted in ascending order according to the shooting time, and the sorting results are image 3, image 1 and image 2, and the results are sorted according to the time axis.

Through the above steps S122 to S126, each video image in the read video image set is sorted according to the shooting time, and the sorting result is displayed on the corresponding time axis, thereby obtaining the time track of the target object, which is followed. Determining the motion trajectory of the target object provides a time node.

Optionally, in the foregoing embodiment of the present application, after acquiring the video image set in step S106, the foregoing method further includes the following steps:

Step S132, obtaining the sharpness of each video image in the video image set.

It should be noted that the above definition can represent the difficulty of identifying the monitoring object in the video image. The higher the definition of the video image, the easier it is to identify the monitoring object in the video image. Conversely, the lower the definition of the video image, the recognition video. The more difficult it is to monitor objects in an image.

Step S134, extracting a video image whose resolution is greater than or equal to the first threshold from the video image set, and obtaining a clear image after screening.

It should be noted that the first threshold may be the resolution of the video image that is most suitable for identifying the monitoring object in the video image.

In step S136, the clear image is marked, and the target object in the clear image that matches the target terminal is calibrated.

In an optional solution, according to the matching result, three video images are obtained from the surveillance videos of the plurality of surveillance cameras, namely, image 1, image 2, and image 3, respectively, and each video image of the three video images is acquired. Sharpness, screening according to the sharpness of the video image, obtaining image 1 and image 3 with sharpness greater than the threshold, calibrating the clear image, and performing monitoring on the monitored object in the clear image In contrast, the target object that matches the target terminal is determined.

Through the above steps S132 to S136, by acquiring the sharpness of each video image in the video image set, the video image in the video image set is extracted and the resolution is greater than or equal to the first threshold, and the video object obtained after the screening is marked. And calibrating the target object matching the target terminal in the clear image, thereby realizing clear image through image filtering, further determining the target object carrying the target terminal, and reducing the redundant image in the monitoring video to the target object determining process influences.

Optionally, in the foregoing embodiment of the present application, before the tracking terminal receives the monitoring information returned by the plurality of surveillance cameras in the surveillance camera cluster, the method further includes the following steps:

Step S142: Each monitoring camera in the surveillance camera cluster monitors the terminal entering the detection area by using the built-in wireless probe device, and acquires identification information of all terminals entering the detection area and time information when the terminal is monitored.

Specifically, the wireless probe device can receive the data packet returned by all the terminals in the detection area, parse the detected MAC address of the corresponding terminal from the received wifi data packet, perform backup, and record the detected target. The specific time when the terminal's MAC address. The wireless probe device can take the time when the data packet transmitted by the terminal is received as the time information when the terminal is detected.

4 is a schematic diagram of an optional wireless probe device according to an embodiment of the present application. In an optional application scenario, as shown in FIG. 4, the processor and the wireless probe device pass a secure digital input/output card. SDIO communicates. At the same time, the wireless probe device is provided with a power amplifier and/or a low noise amplifier to expand the range of signals that the wireless probe device can receive, and to increase the effective detection distance of the wireless probe device. The weak signal of the low noise amplifier is amplified and can be effectively amplified by about 20 dB. Therefore, the power amplifier and the low noise amplifier can enable the wireless probe device to receive a farther and weaker wifi signal, thereby expanding the wireless probe device to receive. The range of signals that are reached increases the effective detection range of the wireless probe device. For example, in an alternative application scenario, a wireless probe device with a power amplifier and a low-noise amplifier can be used to detect a range of more than 50 meters indoors and an outdoor detection range of more than 150 meters.

Step S144: After receiving the identification information of the target terminal to be tracked, each monitoring camera in the surveillance camera cluster matches the identification information of the target terminal to be tracked with the identification information of all terminals entering the detection area.

As shown in FIG. 2, in an optional application scenario, the wireless probe device can receive data packets sent by all terminals in the detection area, and the data packets carry identification information of each terminal, and the wireless probe device can The MAC address of all terminals is parsed in the data packet, and the MAC address of the target terminal to be tracked is matched with the MAC address of all terminals.

In step S146, when any of the monitoring cameras is successfully matched, the time information when the target terminal is monitored is returned.

As shown in FIG. 2, in an optional application scenario, when the processor of the surveillance camera receives the identification information of the target terminal to be tracked provided by the tracking terminal, the wireless probe device collects the mobile terminal in the detection area. When the identification information of the mobile terminal is the same as the identification information provided by the tracking terminal, the mobile terminal is identified as the target terminal, and the processor sends the time information acquired by the wireless probe device to the tracking terminal.

Through the above steps S142 to S146, each monitoring camera in the surveillance camera cluster uses the built-in wireless probe device to acquire identification information of all terminals entering the detection area and time information when monitoring the terminal, and receives the to-be-tracked After the identification information of the target terminal, the identification information of the target terminal to be tracked is matched with the identification information of all terminals in the detection area, and the time information when the target terminal is monitored is returned after the matching is successful. Thereby, the purpose of determining the target object corresponding to the target terminal by monitoring the target terminal is achieved.

Optionally, in the foregoing embodiment, the foregoing monitoring information further includes: the monitored location information of the target terminal, where the tracking terminal receives the monitoring information returned by the multiple surveillance cameras in the surveillance camera cluster in step S104, the foregoing method It also includes the following steps:

Step S152: Determine a motion track of the target terminal entering the monitoring area of the surveillance camera according to the location information of each of the plurality of surveillance cameras, wherein the location information of the target terminal is determined according to the location information of the surveillance camera.

In an optional solution, the surveillance camera uses the built-in navigation positioning device to locate the position information of the surveillance camera.

Specifically, the navigation positioning device may be a GPS positioning device, and the GPS positioning device can realize rapid positioning globally by using a navigation satellite, and further, the positioning accuracy can reach within 10 meters. The location information can be obtained quickly and accurately by the navigation and positioning device.

It should be noted that the navigation and positioning device may also be compatible with other navigation systems, including but not limited to In the following navigation systems: China's Beidou system, Russia's GLONASS navigation system and Europe's Galileo navigation system.

FIG. 5 is a schematic diagram of an optional navigation and positioning device according to an embodiment of the present application. As shown in FIG. 5, in an optional application scenario, the antenna is connected to the navigation positioning device, and the navigation positioning device may be a GPS positioning device, and the data from the navigation satellite can be received through the antenna, for example, a satellite number and an ephemeris clock. Such information, the distance between the camera and the satellite can be calculated by the ephemeris time difference when the signal arrives. By combining the data of multiple satellites (usually more than four), the specific position information of the camera, such as latitude and longitude, altitude, etc., can be determined.

As shown in FIG. 2, in an optional application scenario, the processor may determine specific location information of the target terminal according to the MAC address of the target terminal and the location information that the navigation positioning device locates. The processor sends the specific location information of the target terminal to the tracking terminal, and the tracking terminal determines the motion track of the target terminal according to the location information of the target terminal returned by the plurality of surveillance cameras.

In step S154, the location information and/or the motion track of the target terminal are displayed on the map.

Through the above steps S152 to S154, the motion trajectory of the target terminal is determined according to the position information of each of the plurality of surveillance cameras, and the position information and/or the motion trajectory of the target terminal are displayed on the map, thereby realizing The target terminal performs positioning, and determines the purpose of the target terminal motion trajectory according to the position information, so as to further determine the moving direction of the target object and provide an important basis for early control.

Optionally, in the above embodiment of the present application, the directional antenna includes: a shielding device covering any one or more faces of the directional antenna except the emitting surface.

Specifically, the shielding device may be a thin metal piece mounted on any one or more faces of the directional antenna except the emitting surface, but is not limited thereto, and other devices for shielding electromagnetic waves may also implement the embodiment. the goal of.

In an optional solution, by ensuring a high degree of coincidence between the detection range of the wireless probe device mounted with the directional antenna and the video surveillance range of the camera, by installing the shielding device on the directional antenna, The effect of weakening the detection sensitivity of the wireless probe device outside the monitoring range is achieved, thereby increasing the probability that the target terminal detected by the wireless probe device appears in the video surveillance area, further eliminating the directional antenna detecting the invalid target terminal, and reducing the wireless The false detection rate when the probe device detects the target terminal.

Optionally, in the foregoing embodiment of the present application, after the tracking terminal analyzes the video image included in the video image set according to the predetermined rule, and determines the target object that carries the target terminal from the video image, the method further includes the following steps:

In step S161, other surveillance cameras other than the surveillance camera cluster are determined.

Step S163, the identification information of the target terminal to be tracked is sent to other surveillance cameras.

Step S165, screening j monitoring cameras that are monitored to the target terminal to be tracked from other monitoring cameras.

Step S167, after receiving the position information returned by the j monitoring cameras, obtain j moving positions of the target terminal to be tracked.

In an optional solution, according to the location information of the target terminal returned by the j surveillance cameras, that is, the location information of the target object, according to the location information of the target terminal at different time points, the approximate movement track of the target terminal may be determined, that is, The movement track of the target object.

In step S169, the j moving positions of the target terminal to be tracked and/or the moving track determined by the j moving positions are displayed on the map.

Referring to the above steps S161 to S169, by sending the identification information of the target terminal to be tracked to other surveillance cameras, according to the obtained j monitored position information returned by the surveillance camera of the target terminal to be tracked, the to-be-tracked is obtained. The j moving positions of the target terminal, and the j moving positions of the target terminal to be tracked and/or the moving trajectories determined by the j moving positions are displayed on the map, thereby achieving the purpose of tracking the target object according to the target terminal.

Example 2

According to an embodiment of the present application, a system embodiment for tracking a target object based on a surveillance camera is provided. As shown in FIG. 6, the monitoring camera cluster 61 and the tracking terminal 63 are included.

The surveillance camera cluster 61, each of the surveillance camera clusters is provided with a wireless probe device, and the wireless probe device includes a directional antenna. The orientation of the directional antenna is the same as that of the surveillance camera. And receiving the identification information of the target terminal to be tracked, and when the target terminal enters the detection area by the wireless probe device, generating monitoring information, where the monitoring information includes at least: time information when the target terminal is monitored.

Specifically, the target terminal may be a smart terminal with a wifi function, such as a mobile phone, a tablet, or the like. The above identification information may be the MAC address of the target terminal, but is not limited thereto, and other uses The purpose of the embodiment may be implemented by the information that uniquely identifies the target terminal. The time information may be the time when the target terminal appears in the detection area of the surveillance camera.

As shown in FIG. 2, in an optional application scenario, the relevant department provides identification information of the target terminal that needs to be tracked, and the monitoring camera cluster obtains the identification information of the target terminal to be tracked. The processor of the surveillance camera can determine whether the wireless probe device monitors the target terminal through the MAC address of the target terminal, and when the wireless probe device detects the target terminal, the time information when the processor monitors the target terminal is detected. Send to the tracking terminal over the network.

In an optional application scenario, as shown in FIG. 3, the forward angle of the directional antenna in the above embodiment may be β, and the receiving sensitivity of the directional antenna in the direction of the diffusion angle is higher than that of other regions. To be stronger than 20dB, the conversion distance to the detection distance is that the distance in other directions can be within 20m, and the diffusion angle β (typically a 45° sector, which can be customized according to requirements) can detect the target terminal up to 150m. According to the different lenses, the camera has a certain angle of view α (the angle of view of different cameras is determined by the focal length of the lens), and there is a certain monitoring area. For the monitoring area within 100 meters, all monitoring areas can be considered as The wireless probe device detects that, in addition, the detection area of the wireless probe device is relatively small, and only the region with a maximum radius of 20 m is outside the diffusion angle, and the proportion of the region in the monitoring region is estimated to be less than 30%. Therefore, it can be concluded that the target terminal within the monitoring range can be detected by the wireless probe device, and the target terminal detected by the wireless probe device is more than half of the possibility of appearing in the monitoring area, that is, It is said that the monitoring area and the detection area are highly coincident, which provides a very reliable basis for tracking the target terminal and locking the target object.

The tracking terminal 63 is in communication with the monitoring camera cluster 61, and is configured to send the identification information of the target terminal to be tracked to the monitoring camera cluster, and obtain the video image set by monitoring the monitoring information returned by the plurality of monitoring cameras in the camera cluster, and according to a predetermined rule. The video image included in the video image set is analyzed, and the target object carrying the target terminal is determined from the video image.

As shown in FIG. 2, in an optional application scenario, the tracking terminal may select a monitoring video of the surveillance camera corresponding to the time period according to the time information of the target terminal, and compare the comparison video. The feature information of the plurality of objects in the video is monitored, and the target object holding the target terminal is determined to determine the correspondence between the target terminal and the target object, thereby locking the target object.

In the foregoing embodiment of the present application, the tracking information of the target terminal to be tracked is sent to the monitoring camera cluster by the tracking terminal, and the monitoring information returned by the plurality of monitoring cameras in the monitoring camera cluster is received, and the time when the target terminal is monitored according to the monitoring camera is received. The matching result of the information and the captured shooting time of the captured video, the video image set is acquired, and the video image included in the video image set is analyzed according to a predetermined rule, and the target object carrying the target terminal is determined from the video image, thereby realizing the monitoring The purpose of carrying the target object of the target terminal in the area, and further determining the target object carrying the target terminal, can achieve the purpose of tracking the target object, thereby solving the technical problem of [keyword]. Therefore, with the foregoing embodiment of the present application, it is possible to determine the target object according to the target terminal, and provide a key clue for further tracking the target object, so that after the target is locked, more monitoring cameras are used to perform real-time on the target object. Tracking until the target object falls into the control of the relevant department plays an important role in the construction of a safe city.

Optionally, in the foregoing embodiment of the present application, the wireless probe device further includes:

a power amplifier for increasing the transmit power of the wireless probe device; and/or,

Low noise amplifier for improving the receiving sensitivity of wireless probe devices.

As shown in FIG. 4, in an optional solution, the wireless probe device can increase the transmission power through the power amplifier, and improve the sensitivity of the signal reception through the low noise amplifier, wherein the low noise is placed. The large weak signal is amplified and can be effectively amplified by about 20 dB. Therefore, the power amplifier and the low noise amplifier can enable the wireless probe device to receive a farther and weaker Wifi signal, thereby expanding the wireless probe device to receive. The range of the signal increases the effective detection range of the wireless probe device. For example, in an alternative application scenario, a wireless probe device with a power amplifier and a low-noise amplifier can be used to detect a range of more than 50 meters indoors and an outdoor detection range of more than 150 meters.

Optionally, in the foregoing embodiment of the present application, each monitoring camera is further provided with a navigation positioning device for positioning the location information of the target terminal.

It should be noted that the navigation positioning device may also be compatible with other navigation systems, including but not limited to the following navigation systems: the Beidou system in China, the GLONASS navigation system in Russia, and the Galileo navigation system in Europe.

As shown in FIG. 5, in an optional application scenario, the antenna is connected to the navigation positioning device, and the navigation positioning device may be a GPS positioning device, and the data from the navigation satellite can be received through the antenna, for example, a satellite number and an ephemeris clock. Such information, the distance between the camera and the satellite can be calculated by the ephemeris time difference when the signal arrives. By combining the data of multiple satellites (usually more than four), the specific position information of the camera, such as latitude and longitude, altitude, etc., can be determined.

Optionally, in the foregoing embodiment of the present application, each monitoring camera is further provided with a video collector for collecting video images of the target object entering the monitoring area.

Specifically, the video capture device can capture the video image of the target object entering the monitoring area in real time, and the processor can obtain the video image captured by the video capture device in the corresponding time period according to the dwell time of the target terminal in the data packet. , thereby determining the correspondence between the target terminal and the target object. The problem that the corresponding relationship between the target terminal and the target object cannot be accurately determined in the prior art is solved.

Through the above solution, the camera can capture the video image of the target object entering the monitoring area through the video collector, and obtain the video image in the corresponding time period according to the dwell time in the data packet detected by the wifi probe, thereby determining the target object. Further correspondence with the target terminal Tracking of the target object.

Example 3

According to an embodiment of the present application, a system embodiment for tracking a target object based on a surveillance camera is provided. As shown in FIG. 7, the monitoring camera cluster 71, the video server 73, and the tracking terminal 75 are provided.

The surveillance camera cluster 71, each of the surveillance camera clusters is provided with a wireless probe device, and the wireless probe device includes a directional antenna. The orientation of the directional antenna is the same as that of the surveillance camera. And receiving the identification information of the target terminal to be tracked, and when the target terminal enters the detection area by the wireless probe device, generating monitoring information, where the monitoring information includes at least: time information when the target terminal is monitored.

Specifically, the target terminal may be a smart terminal with a wifi function, such as a mobile phone, a tablet, or the like. The foregoing identification information may be the MAC address of the target terminal, but is not limited thereto. Other information for uniquely identifying the target terminal may achieve the purpose of the embodiment. The time information may be the time when the target terminal appears in the detection area of the surveillance camera.

In an optional application scenario, as shown in FIG. 3, the forward angle of the directional antenna in the above embodiment may be β, and the receiving sensitivity of the directional antenna in the direction of the diffusion angle is higher than that of other regions. To be stronger than 20dB, the conversion distance to the detection distance is that the distance in other directions can be within 20m, and the diffusion angle β (typically a 45° sector, which can be customized according to requirements) can detect the target terminal up to 150m. According to the different lenses, the camera has a certain angle of view α (the angle of view of different cameras is determined by the focal length of the lens), and there is a certain monitoring area. For the monitoring area within 100 meters, all monitoring areas can be considered as Wireless probe device detected, and except In addition, the detection area of the wireless probe device is relatively small, and the area outside the diffusion angle has a maximum radius of 20 m, and the proportion of the area in the monitoring area is estimated to be less than 30%. Therefore, it can be concluded that the target terminal within the monitoring range can be detected by the wireless probe device, and the target terminal detected by the wireless probe device is more than half of the possibility of appearing in the monitoring area, that is, It is said that the monitoring area and the detection area are highly coincident, which provides a very reliable basis for tracking the target terminal and locking the target object.

The video server 73 is in communication with the surveillance camera cluster 71 for storing surveillance video captured by each surveillance camera in the surveillance camera cluster.

As shown in FIG. 2, in an optional application scenario, the video capture device in the surveillance camera collects video images of all objects entering the monitoring area in real time, and the processor sends the monitoring video including the video image to the video server through the network. . After receiving the surveillance video captured by each surveillance camera, the video server is stored in the storage medium of the video server.

The tracking terminal 75 is in communication with the surveillance camera cluster 71 and the video server 73, and is configured to send the identification information of the target terminal to be tracked to the surveillance camera cluster, and monitor the time information of the target terminal according to the plurality of surveillance cameras in the surveillance camera cluster. The matching result of the captured time of the captured video is captured, the video image set is acquired, and the video image included in the video image set is analyzed according to a predetermined rule, and the target object carrying the target terminal is determined from the video image.

In this embodiment, the tracking terminal 75 obtains the monitoring video captured by the plurality of surveillance cameras in the surveillance camera cluster from the video server 73.

As shown in FIG. 2, in an optional application scenario, the tracking terminal may select a monitoring video of a surveillance camera corresponding to a time period according to time information when the target terminal is detected, and compare multiple objects in multiple monitoring videos. The feature information determines that the target object holding the target terminal determines the correspondence between the target terminal and the target object, thereby locking the target object.

In the foregoing embodiment of the present application, the tracking information of the target terminal to be tracked is sent to the monitoring camera cluster by the tracking terminal, and the monitoring information returned by the plurality of monitoring cameras in the monitoring camera cluster is received, and the time when the target terminal is monitored according to the monitoring camera is received. The matching result of the information and the captured shooting time of the captured video, the video image set is acquired, and the video image included in the video image set is analyzed according to a predetermined rule, and the target object carrying the target terminal is determined from the video image, thereby realizing the monitoring The purpose of carrying the target object of the target terminal in the area is further carried out by determining The target object of the target terminal can achieve the purpose of tracking the target object, thereby solving the technical problem of [keyword]. Therefore, with the foregoing embodiment of the present application, it is possible to determine the target object according to the target terminal, and provide a key clue for further tracking the target object, so that after the target is locked, more monitoring cameras are used to perform real-time on the target object. Tracking until the target object falls into the control of the relevant department plays an important role in the construction of a safe city.

As shown in FIG. 4, in an optional solution, the wireless probe device can increase the transmit power through the power amplifier, and improve the sensitivity of the signal reception through the low noise amplifier, wherein the low noise amplifier weakens the signal and can be effectively amplified. About 20dB, therefore, the power amplifier and the low noise amplifier can enable the wireless probe device to receive farther and weaker Wifi signals, thereby expanding the range of signals that the wireless probe device can receive, and improving the wireless probe device. Effective detection of distance. For example, in an alternative application scenario, a wireless probe device with a power amplifier and a low-noise amplifier can be used to detect a range of more than 50 meters indoors and an outdoor detection range of more than 150 meters.

Through the above solution, the camera can capture the video image of the target object entering the monitoring area through the video collector, and obtain the video image in the corresponding time period according to the dwell time in the data packet detected by the wifi probe, thereby determining the target object. The correspondence with the target terminal further realizes tracking of the target object.

Example 4

According to an embodiment of the present application, an apparatus embodiment for tracking a target object based on a surveillance camera is provided. As shown in FIG. 8, the method includes: a sending module 81, a receiving module 83, an obtaining module 85, and a determining module 87.

The sending module 81 is configured to send the identifier information of the target terminal to be tracked to the monitoring camera cluster, where the monitoring camera in the monitoring camera cluster is provided with a wireless probe device, and the wireless probe device includes a directional antenna and a directional antenna. Orientation of the emitting surface with the surveillance camera The camera direction is the same.

As shown in FIG. 2, in an optional application scenario, the relevant department provides the identification information of the terminal to be tracked, and the terminal to be queried may be a stolen mobile phone, and the tracking terminal identifies the identification information of the terminal to be tracked through the network. Send to at least two surveillance cameras in the surveillance camera cluster.

The receiving module 83 is configured to track, by the terminal, the monitoring information returned by the plurality of monitoring cameras in the monitoring camera cluster, wherein the plurality of monitoring cameras are cameras that monitor the target terminal by using the wireless probe device, and the monitoring information includes at least: monitoring the target terminal Time information.

Specifically, the foregoing time information may be a time when the target terminal appears in the detection area of the surveillance camera.

As shown in FIG. 2, in an optional application scenario, the processor of the surveillance camera can determine whether the wireless probe device monitors the target terminal by using the MAC address of the target terminal, and determines that the wireless probe device monitors the target. In the case of the terminal, the processor transmits the time information when the target terminal is detected to the tracking terminal through the network.

The obtaining module 85 is configured to acquire a video image set according to a matching result of the time information when the monitoring camera detects the target terminal and the shooting time of the captured monitoring video.

The determining module 87 is configured to track, by the terminal, the video image included in the video image set according to a predetermined rule, and determine the target object carrying the target terminal from the video image.

Optionally, in the foregoing embodiment of the present application, the acquiring module includes:

An extraction submodule, configured to: extract, by the tracking terminal, at least one video image from a monitoring video of a surveillance camera that is monitored to the target terminal, where a shooting time of the video image is corresponding to when the target terminal is monitored The time information is the same; or, the shooting time of the video image is The difference of the time information corresponding to the monitoring of the target terminal is within a predetermined time range.

Optionally, in the foregoing embodiment of the present application, the foregoing apparatus further includes:

a saving module, in the process of capturing the monitoring video, if the target terminal is detected, saving the video image captured when the target terminal is monitored, so that the tracking terminal is from the monitoring Reading a video image taken when the target terminal is detected in a surveillance camera of the target terminal; or

a matching module, configured to: when the surveillance camera captures the surveillance video, transmit the captured surveillance video to the video server, so that the tracking terminal acquires the surveillance video from the video server, and monitors The time information to the target terminal matches the shooting time of the at least one video image included in the surveillance video.

Optionally, in the foregoing embodiment of the present application, the determining module includes:

a reading submodule, configured to: the tracking terminal extracts at least one video image from the video image set, and reads feature data of the monitoring object included in the at least one video image, where the feature data includes the following Any one or more data: a facial feature attribute, a gender feature attribute, a clothing feature attribute, and a body feature attribute of the monitored object;

And a first determining submodule, configured to determine, in the at least one video image, a monitoring object having the same feature or feature data matching degree greater than or equal to a predetermined matching value as a target object that matches the target terminal.

a query sub-module, configured to query, from the video image set, whether there is a single-person video image or a multi-person video image, wherein the image content of the single-person video image includes only one monitoring object, and the multi-person video image The number of monitoring objects included in the image content is less than or equal to the preset value.

a second determining submodule, configured to determine, if the single-person video image or the multi-person video image is queried from the video image set, the single-person video image or the multi-person video image The target object that the terminal matches.

And a reading module, configured to read a shooting time of each video image in the video image set.

a sorting module, configured to sort the video image set in ascending or descending order according to a shooting time of each video image.

The first display module is configured to display the sorted result of the ascending or descending sorting on a corresponding time axis.

And a first acquiring module, configured to acquire a sharpness of each video image in the video image set.

And an extraction module, configured to extract, from the video image set, a video image with a resolution greater than or equal to a first threshold, to obtain a clear image after screening.

And a marking module, configured to mark the clear image and calibrate the target object in the clear image that matches the target terminal.

Optionally, in the foregoing embodiment, the foregoing monitoring information further includes: the monitored location information of the target terminal, where the device further includes:

The first determining module is configured to determine a motion track of the target terminal entering the monitoring area of the monitoring camera according to the location information of each of the plurality of monitoring cameras, wherein the location information of the target terminal is determined according to the location information of the monitoring camera.

The second determining module is configured to determine other monitoring cameras other than the monitoring camera cluster.

The first sending module is configured to send the identification information of the target terminal to be tracked to other monitoring cameras.

The screening module is configured to filter, from other monitoring cameras, j monitoring cameras that are monitored to the target terminal to be tracked.

The second obtaining module is configured to obtain j moving positions of the target terminal to be tracked after receiving the position information returned by the j monitoring cameras.

And a third determining module, configured to display the j moving positions of the target terminal to be tracked and/or the moving track determined by the j moving positions on the map.

The serial numbers of the embodiments of the present application are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

Corresponding to the foregoing method embodiments, the embodiment of the present application further provides a storage medium for storing an application, where the application is used to execute at runtime: searching for a target object based on a surveillance camera according to the embodiment of the present application. The method of the present invention, which is based on the monitoring camera to find a target object, includes:

Sending identification information of the target terminal to be tracked to the surveillance camera cluster, wherein the surveillance camera in the surveillance camera cluster is provided with a wireless probe device, and the wireless probe device includes a directional antenna, and an emission surface of the directional antenna The orientation of the camera is the same as that of the surveillance camera;

Receiving the monitoring information returned by the plurality of surveillance cameras in the surveillance camera cluster, wherein the plurality of surveillance cameras are cameras that are monitored by the wireless probe device to the target terminal, and the monitoring information includes at least: monitoring Time information of the target terminal;

Obtaining a video image set according to a matching result of time information when the monitoring camera detects the target terminal and a shooting time of the captured monitoring video;

The video image included in the video image set is analyzed according to a predetermined rule, and the target object carrying the target terminal is determined from the video image.

In this embodiment, the storage medium stores an application that executes the method for finding a target object based on the surveillance camera provided by the embodiment of the present application at runtime, and thus can solve the process of searching for a target object based on the surveillance camera in the prior art. The problem of carrying the target object of the target terminal in the monitoring area cannot be known.

In addition, the embodiment of the present application further provides an application for performing the method for searching for a target object based on a surveillance camera provided by the embodiment of the present application; The method by which the camera looks for the target object, including:

In this embodiment, the application performs the monitoring based on the monitoring provided by the embodiment of the present application at runtime. The method of finding the target object by the camera can solve the problem that the target object carrying the target terminal in the monitoring area cannot be known in the process of searching for the target object based on the monitoring camera in the prior art.

The embodiment of the present application further provides a terminal, including: a processor, a memory, a communication interface, and a bus;

The processor, the memory, and the communication interface are connected by the bus and complete communication with each other;

The memory stores executable program code;

The processor, by reading the executable program code stored in the memory, to run a program corresponding to the executable program code, for performing: searching for a target object based on the surveillance camera provided by the embodiment of the present application The method for finding a target object based on a surveillance camera provided by the embodiment of the present application includes:

In this embodiment, the processor of the terminal runs a program corresponding to the executable program code by reading the executable program code stored in the memory, and the program executes the monitoring camera provided by the embodiment of the present application at runtime. In the process of finding a target object based on a surveillance camera in the prior art, the problem of carrying the target object of the target terminal in the monitoring area cannot be known.

It should be emphasized that the terminal is the tracking method mentioned in the above method embodiment and the system embodiment. Specifically, the terminal exists in various forms, including but not limited to:

(1) Mobile communication devices: These devices are characterized by mobile communication functions and are mainly aimed at providing voice and data communication. Such terminals include: smart phones (such as iPhone), multimedia phones, functional phones, and low-end phones.

(2) Ultra-mobile personal computer equipment: This type of equipment belongs to the category of personal computers, has computing and processing functions, and generally has mobile Internet access. Such terminals include: PDAs, MIDs, and UMPC devices, such as the iPad.

(3) Portable entertainment devices: These devices can display and play multimedia content. Such devices include: audio, video players (such as iPod), handheld game consoles, e-books, and smart toys and portable car navigation devices.

(4) Other electronic devices with data interaction functions.

For the terminal, the application, and the storage medium embodiment, since the method content involved is basically similar to the foregoing method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

The above is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc., which are made within the spirit and principles of the present application, should be included in the present application. Within the scope of protection.

Claims

A method for finding a target object based on a surveillance camera, comprising:

The tracking terminal sends the identification information of the target terminal to be tracked to the surveillance camera cluster, wherein the surveillance camera in the surveillance camera cluster is provided with a wireless probe device, and the wireless probe device includes a directional antenna, and the directional antenna The orientation of the emitting surface is the same as the imaging direction of the surveillance camera;

The tracking terminal receives the monitoring information returned by the plurality of surveillance cameras in the surveillance camera cluster, wherein the plurality of surveillance cameras are cameras that are monitored by the wireless probe device to the target terminal, and the monitoring information is at least The method includes: monitoring time information when the target terminal is detected;

The tracking terminal acquires a video image set according to a matching result of time information when the monitoring camera detects the target terminal and a shooting time of the captured monitoring video;

The tracking terminal analyzes a video image included in the video image set according to a predetermined rule, and determines a target object that carries the target terminal from the video image.
The method according to claim 1, wherein the tracking terminal acquires a video image set according to a matching result of the time information when the monitoring camera detects the target terminal and the shooting time of the captured monitoring video, including:

The tracking terminal extracts at least one video image from a monitoring video of a surveillance camera that is monitored to the target terminal, where

The shooting time of the video image is the same as the time information corresponding to the monitoring of the target terminal; or the difference between the shooting time of the video image and the time information corresponding to the monitoring of the target terminal is within a predetermined time range. Inside.
The method according to claim 1 or 2, wherein the tracking terminal obtains a video according to a matching result of the time information when the monitoring camera detects the target terminal and the shooting time of the captured monitoring video. Before the image collection, the method further includes:

During the process of capturing the surveillance video, if the target terminal is detected, the video image captured when the target terminal is detected is saved, so that the tracking terminal is from the monitoring to the target terminal. Reading a video image taken when the target terminal is detected in a surveillance camera; or

The surveillance camera transmits the captured surveillance video during the process of capturing the surveillance video. Transmitting to a video server, causing the tracking terminal to acquire the monitoring video from the video server, and performing time information when the target terminal is monitored and a shooting time of at least one video image included in the monitoring video match.
The method according to claim 1, wherein the tracking terminal analyzes a video image included in the video image set according to a predetermined rule, and determines, from the video image, a step of carrying a target object of the target terminal. include:

And the tracking terminal extracts at least one video image from the video image set, and reads feature data of the monitoring object included in the at least one video image, where the feature data includes any one or more of the following data: a face feature attribute, a gender feature attribute, a clothing feature attribute, and a body feature attribute of the monitored object;

A monitoring object having the same feature or feature data matching degree greater than or equal to a predetermined matching value in the at least one video image is determined as a target object that matches the target terminal.
The method according to claim 1, wherein the tracking terminal analyzes a video image included in the video image set according to a predetermined rule, and determines, from the video image, a step of carrying a target object of the target terminal. include:

Querying, from the video image set, whether there is a single-person video image or a multi-person video image, wherein the image content of the single-person video image includes only one monitoring object, and the image content included in the multi-person video image The number of monitored objects is less than or equal to a preset value;

Determining, if the single-person video image or the multi-person video image is queried from the set of video images, determining that the single-person video image or the multi-person video image includes a target that matches the target terminal Object.
The method according to claim 1, wherein after acquiring the video image set, the method further comprises:

Reading a shooting time of each video image in the set of video images;

And collecting the video image set in ascending or descending order according to a shooting time of each video image;

The sorted result of the ascending or descending sorting is displayed on the corresponding time axis.
The method according to claim 1, wherein after acquiring the video image set, the method further comprises:

Obtaining a sharpness of each video image in the set of video images;

Extracting a video image with a resolution greater than or equal to a first threshold from the set of video images to obtain a clear image after screening;

Marking the sharp image and calibrating the target object in the sharp image that matches the target terminal.
The method according to claim 1, wherein the monitoring information further comprises: the monitored location information of the target terminal, wherein the tracking terminal receives a plurality of surveillance camera returns in the surveillance camera cluster After monitoring the information, the method further includes:

Determining, according to the location information of each of the plurality of surveillance cameras, a motion trajectory of the target terminal entering the monitoring area of the surveillance camera, where the location information of the target terminal is determined according to the location information of the surveillance camera .
The method of claim 1 wherein said directional antenna comprises: shielding means covering said any one or more faces of said directional antenna other than said emitting surface.
The method according to claim 1, wherein the tracking terminal analyzes a video image included in the video image set according to a predetermined rule, and after determining, from the video image, a target object carrying the target terminal The method further includes:

Determining other surveillance cameras other than the surveillance camera cluster;

Sending the identification information of the target terminal to be tracked to the other surveillance cameras;

Extracting, from the other surveillance cameras, j monitoring cameras that are monitored to the target terminal to be tracked;

After receiving the location information returned by the j surveillance cameras, obtaining j movement positions of the target terminal to be tracked;

Displaying the j moving positions of the target terminal to be tracked and/or the moving track determined by the j moving positions on a map.
A system for finding a target object based on a surveillance camera, comprising:

a surveillance camera cluster, wherein each of the surveillance camera clusters is provided with a wireless probe device, the wireless probe device comprising a directional antenna, an orientation of an emission surface of the directional antenna and an imaging direction of the surveillance camera Similarly, the surveillance camera is used to receive the target to be tracked. The identification information of the target terminal is generated when the target terminal enters the detection area by the wireless probe device, and the monitoring information is generated, wherein the monitoring information includes at least: time information when the target terminal is detected;

a tracking terminal, configured to communicate with the monitoring camera cluster, to send the identification information of the target terminal to be tracked to the monitoring camera cluster, and obtain video images by using monitoring information returned by multiple monitoring cameras in the monitoring camera cluster And collecting, and analyzing, according to a predetermined rule, a video image included in the video image set, and determining a target object carrying the target terminal from the video image.
The system of claim 11 wherein said directional antenna comprises: shielding means covering said any one or more faces of said directional antenna other than said emitting surface.
The system of claim 12, wherein the wireless probe device further comprises:

a power amplifier for increasing the transmit power of the wireless probe device; and/or,

A low noise amplifier for improving the receiving sensitivity of the wireless probe device.
The system according to claim 11, wherein each of the monitoring cameras is further provided with navigation positioning means for positioning the location information of the target terminal.
The system according to claim 11, wherein each of the monitoring cameras is further provided with a video collector for collecting video images of the target object entering the monitoring area.
A system for finding a target object based on a surveillance camera, comprising:

a surveillance camera cluster, wherein each of the surveillance camera clusters is provided with a wireless probe device, the wireless probe device comprising a directional antenna, an orientation of an emission surface of the directional antenna and an imaging direction of the surveillance camera Similarly, the monitoring camera is configured to receive the identification information of the target terminal to be tracked, and generate monitoring information when the target terminal enters the detection area by the wireless probe device, where the monitoring information includes: Time information when the target terminal is detected;

a video server, configured to communicate with the surveillance camera cluster, for storing a surveillance video captured by each surveillance camera in the surveillance camera cluster;

Tracking terminals, respectively communicating with the surveillance camera cluster and the video server, for transmitting Determining the identification information of the target terminal to be tracked to the monitoring camera cluster, and matching the time information when the target camera is monitored by the plurality of monitoring cameras in the monitoring camera cluster and the shooting time of the captured monitoring video As a result, a video image set is acquired, and a video image included in the video image set is analyzed according to a predetermined rule, and a target object carrying the target terminal is determined from the video image.
The system of claim 16 wherein said directional antenna comprises: shielding means covering said any one or more faces of said directional antenna other than said emitting surface.
The system of claim 17 wherein said wireless probe device further comprises:

a power amplifier for increasing the transmit power of the wireless probe device; and/or,

A low noise amplifier for improving the receiving sensitivity of the wireless probe device.
The system according to claim 16, wherein each of the monitoring cameras is provided with navigation positioning means for positioning the location information of the target terminal.
The system according to claim 16, wherein each of the monitoring cameras is further provided with a video collector for collecting video images of the target object entering the monitoring area.
A device for finding a target object based on a surveillance camera, comprising:

a sending module, configured to: send, by the terminal, identification information of the target terminal to be tracked to the monitoring camera cluster, where the monitoring camera in the monitoring camera cluster is provided with a wireless probe device, and the wireless probe device includes a directional antenna. The orientation of the emitting surface of the directional antenna is the same as the imaging direction of the surveillance camera;

a receiving module, configured to receive, by the tracking terminal, monitoring information returned by a plurality of monitoring cameras in the monitoring camera cluster, wherein the plurality of monitoring cameras are cameras that monitor the target terminal by using the wireless probe device, The monitoring information includes at least: time information when the target terminal is detected;

An acquisition module, configured to acquire, by the tracking terminal, a video image set according to a matching result of time information when each monitoring camera detects the target terminal and a shooting time of the captured monitoring video;

a determining module, configured to analyze, by the tracking terminal, the video image set according to a predetermined rule The video image is included, and the target object carrying the target terminal is determined from the video image.
A storage medium for storing an application for executing at runtime: the method for finding a target object based on a surveillance camera according to any one of claims 1-10.
An application, characterized in that it is executed at runtime: the method for finding a target object based on a surveillance camera according to any one of claims 1-10.
A terminal, comprising: a processor, a memory, a communication interface, and a bus;

The processor, the memory, and the communication interface are connected by the bus and complete communication with each other;

The memory stores executable program code;

The processor runs a program corresponding to the executable program code by reading executable program code stored in the memory for execution: the monitoring camera based on any one of claims 1-10 The method of finding the target object.