WO2011143941A1

WO2011143941A1 - Method, system and server for processing video information

Info

Publication number: WO2011143941A1
Application number: PCT/CN2011/070331
Authority: WO
Inventors: 李捷; 李必勇
Original assignee: 杭州普维光电技术有限公司
Priority date: 2010-05-20
Filing date: 2011-01-17
Publication date: 2011-11-24
Also published as: CN101860731B; CN101860731A

Abstract

A method, system and server for processing video information save some predefined event features. The method includes: obtaining first video information by a first camera; determining whether a predefined event occurs according to the first video information; when a predefined event occurs, saving the first video information by using the occurrence time of the event and the number of the first camera as an index. Applying the embodiments of the present invention for video monitoring and video information processing can pertinently save the captured video information corresponding to an event; as the video information can be saved according to event description information, when a finding and searching is implemented, it can be implemented automatically by a system, so as to improve the usability of the system.

Description

Video information processing method, system and server

The present application claims priority to Chinese Patent Application No. 201010179341.1, entitled "Video Information Processing Method, System and Server", filed on May 20, 2010, the entire contents of in.

Technical field

The present application relates to the field of video surveillance technologies, and in particular, to a video information processing method, system, and server.

Background technique

At present, video surveillance has been applied in various fields, for example, in the business halls of telecommunications, banking, etc., video surveillance through the installation of cameras in surveillance, through these cameras to monitor and record various local areas of the monitoring site, shooting a large amount of video information These video information are encoded and stored. In the existing video surveillance system, including a large number of cameras, the video information captured by these cameras consumes a large amount of network bandwidth and storage space, and useful video information is hidden in a large amount of storage information, and is difficult to be effectively utilized. Referring to FIG. 1 , it is a schematic structural diagram of an existing monitoring system, which is generally composed of a camera device, a code storage device, and a monitoring management device. The camera is used to capture video information, and the captured video information is input into an encoding storage device for storage, and the administrator extracts useful information by analyzing and processing the stored video information.

The inventor discovered in the research and practice of the prior art that the video acquisition of the existing video surveillance system is blind, so that more unnecessary video information is stored; and, because the video information of the existing video surveillance system is mostly The time and camera number are encoded and stored for the index. When searching for video information, the administrator needs a lot of manual extraction and operation, so the efficiency is low, and it is difficult to perform real-time analysis, which reduces the usability of the video surveillance system.

Summary of the invention

The purpose of the embodiments of the present application is to provide a video information processing method, system, and server, to solve the problem that the video monitoring system in the prior art acquires video information blindly, and the processing efficiency is low when the useful information is extracted and analyzed.

To solve the above technical problem, the embodiment of the present application provides the following technical solutions:

A video information processing method, which saves a plurality of predefined event features, the method comprising: acquiring first video information by using a first camera; Determining, according to the first video information, whether a predefined event occurs;

When a predefined event occurs, the first video information is saved with an occurrence time of the event and the first camera number as an index.

Determining, according to the first video information, whether a predefined event occurs includes:

Analyzing the obtained first video information;

A predetermined event occurrence is determined when an event feature extracted from the first video information coincides with the predefined event feature.

Also includes:

Controlling, by a second camera, second video information corresponding to the event when a predefined event occurs, the second camera and the first camera being associated with each other in a field of view;

Determining whether a predefined event occurs according to the second video information;

When the verification of the predefined event occurs, the second video information is saved with the occurrence time of the event and the second camera number as an index.

The saving the first video information by using the event occurrence time and the first camera number as an index includes:

And storing the event description information of the first video information in the event database by using the event occurrence time and the first camera number as an index;

And storing the video encoding information of the first video information in a video database by using the event occurrence time and the first camera number as an index;

The saving the second video information by using the event occurrence time and the second camera number as an index includes:

And storing the event description information of the second video information in the event database by using the event occurrence time and the second camera number as an index;

The video encoding information of the second video information is saved in a video database by using the event occurrence time and the second camera number as an index.

Also includes:

Receiving a retrieval command, where the retrieval command includes event description information;

Searching, in the event database, the corresponding camera number and the time when the event occurred according to the event description information; And searching for a video database according to the camera number and the time when the event occurs, and acquiring corresponding video encoding information from the video database.

Also includes:

And controlling a video coding rate of the first video information and the second video information according to the generated predefined event.

A video information processing system includes: a first camera and a server,

The first camera is configured to acquire first video information;

The server is configured to save a plurality of predefined event characteristics, and determine, according to the first video information, whether a predefined event occurs, when a predefined event occurs, the time of occurrence of the event, and the The first camera number is an index to save the first video information.

Also includes:

a second camera, configured to acquire second video information corresponding to the event according to control of the server when a predefined event occurs, where the second camera and the first camera are associated with each other in a field of view ;

The server is further configured to: verify, according to the second video information, whether a predefined event occurs, and when verifying that a predefined event occurs, saving the event by using the event occurrence time and the second camera number as an index. Second video information.

Also included: video database, event database, encoder, and time-based devices,

The event database is configured to save event description information of the first video information, and an occurrence time of the event and the second camera, by using an event occurrence time of the event and the first camera number as an index The number is an index, and the event description information of the second video information is saved;

The encoder is configured to encode the first video information and the second video information;

The video database is configured to save video encoding information of the first video information, and an occurrence time of the event and the second camera, by using an event occurrence time of the event and the first camera number as an index The number is an index, and the video encoding information of the second video information is saved.

The time system device is configured to time the server and the encoder to keep the time of the server and the encoder consistent.

The server is further configured to receive a retrieval command, where the retrieval command includes event description information, and the corresponding camera number and event occurrence time are searched in the event database according to the event description information. And searching for a video database according to the camera number and the time when the event occurs, and acquiring corresponding video encoding information from the video database.

A server, comprising:

a predefined unit for storing a plurality of predefined event features;

An acquiring unit, configured to acquire first video information by using the first camera;

a determining unit, configured to determine, according to the first video information, whether a predefined event occurs; a saving unit, configured to: when a predefined event occurs, use the event occurrence time and the first camera number as The index saves the first video information.

The determining unit includes:

An information analysis subunit, configured to analyze the obtained first video information;

An event determining subunit, configured to determine a pre-defined event occurrence when an event feature extracted from the first video information is consistent with the pre-defined event feature.

Also includes:

a control unit, configured to control a second camera to acquire second video information corresponding to the event when a predefined event occurs, where the second camera and the first camera are related to each other in a field of view;

a verification unit, configured to verify, according to the second video information, whether a pre-defined event occurs; the saving unit is further configured to: when verifying that a predefined event occurs, the occurrence time of the event and the second camera The number is an index to save the second video information.

The saving unit includes:

An event description information saving subunit, configured to save, in an event database, event description information of the first video information, and an occurrence time of the event, by using an event occurrence time of the event and the first camera number as an index And the second camera number is an index, and event description information of the second video information is saved in an event database;

a video encoding information saving subunit, configured to save video encoding information of the first video information in a video database with an occurrence time of the event and the first camera number as an index, and time of occurrence of the event And the second camera number is an index, and the video encoding information of the second video information is saved in a video database.

Also includes: a receiving unit, configured to receive a retrieval command, where the retrieval command includes event description information, and a searching unit, configured to search for a corresponding camera number and an event occurrence time in the event database according to the event description information, and according to the camera The number and time of occurrence of the event find a video database, and the corresponding video encoding information is obtained from the video database.

Also includes:

And an encoding control unit, configured to control a video encoding rate of the first video information and the second video information according to the generated predefined event.

It can be seen that, in the embodiment of the present application, a plurality of predefined event features are saved. After acquiring the first video information by using the first camera, determining whether a predefined event occurs according to the first video information, when a predefined event occurs. The first video information is saved by using the event occurrence time and the first camera number as an index. Applying the video monitoring and video information processing in the embodiment of the present application, the captured video information corresponding to the event may be saved in a targeted manner, and the preset is captured by the association between the first camera and the second camera. When the event occurs, the second camera can acquire the target video information consistent with the preset event, so that the system can acquire the video information in a targeted manner; since the video information can be stored according to the event description information, when searching and searching, It can be automated by the system, increasing the availability of the system.

DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description Only some of the embodiments described in the present application can be obtained by those skilled in the art from the drawings without any inventive labor.

1 is a schematic structural diagram of an existing video monitoring system;

2 is a flowchart of a first embodiment of a video information processing method according to the present application;

3 is a flowchart of a second embodiment of a video information processing method according to the present application;

4A is a schematic structural diagram of a video surveillance processing system applying an embodiment of a video information processing method of the present application;

4B is a schematic structural diagram of a video surveillance processing system of a business hall to which an embodiment of the present application is applied;

Figure 5 is a block diagram of a first embodiment of a video information processing system of the present application; 6 is a block diagram of a second embodiment of a video information processing system of the present application;

7 is a block diagram of an embodiment of a server of the present application.

detailed description

The embodiment of the present application provides a video information processing method, system, and server.

The above-mentioned objects, features, and advantages of the embodiments of the present application can be more clearly understood and understood by those skilled in the art. Give further details.

Before describing the embodiments of the present application, the technical terms involved in the present application are first explained as follows: Video information: The information of the video content output by the camera may be an analog signal output or a digital signal output;

Event: Changes in people and things in the space and time that the system pays attention to;

Event characteristics: The characteristics of time and space people and objects defined by the computer language; description of events: changes in time and space of people and things described by the system in computer language; coding information of video: a certain algorithm for video information Encoding to reduce bandwidth and storage space when transmitting and storing video information.

2 is a flowchart of a first embodiment of a video information processing method according to the present application:

Step 201: Save a plurality of predefined event features.

The pre-defined event features in the embodiments of the present application mainly refer to the features of the shooting target that need to be focused on during video surveillance. For example, the events may be certain security events and service events.

Step 202: Acquire first video information by using the first camera.

In the embodiment of the present application, the first camera generally refers to a panoramic camera or a normal fixed focus camera, and can capture a panoramic view of the monitoring place.

Step 203: Determine, according to the first video information, whether a predefined event occurs.

Specifically, the acquired first video information is analyzed, and when an event feature extracted from the first video information is consistent with the predefined event feature, a predefined event occurrence is determined.

Step 204: When a predefined event occurs, the first video information is saved by using the event occurrence time and the first camera number as an index.

Specifically, the event description information of the first video information is saved in the event database by using the event occurrence time and the first camera number as an index, and the event occurrence time and the first camera are The number is an index, and the video encoding information of the first video information is saved in the video database.

Referring to FIG. 3, it is a flowchart of a second embodiment of a video information processing method according to the present application. The embodiment details the process of event-oriented video acquisition, storage, and retrieval:

Step 301: Save a plurality of predefined event features.

In the embodiment of the present application, a number of events that need attention are defined and saved in advance, and the events can be distinguished by event characteristics, including some security events and service events. For example, for a monitoring place, the event that needs to be focused on is “someone enters at the door of the place”. When a video of someone entering the door is captured, it indicates that the event has occurred.

Step 302: Acquire first video information by using the first camera.

In this embodiment, the first camera and the second camera that acquire video information are included, and the first camera and the second camera are associated with each other in the field of view, and the field of view coordinates are normalized by the server. The first camera usually refers to a panoramic camera, which can capture the panoramic view of the monitoring place. The second camera is usually a ΡΤΖ camera (ΡΤΖ is Pan, Tilt, Zoom, which represents the omni-directional movement of the pan-tilt and lens zoom, zoom Control), used to make targeted shots of events when an event has been detected.

Step 303: Determine, according to the first video information, whether a predefined event occurs.

The acquired first video information is analyzed, and when an event feature extracted from the first video information coincides with a previously defined event feature, a pre-defined event occurrence is determined.

The first video information captured by the first camera is sent to the server in real time, and the first video information is analyzed by the server to monitor whether an event containing a predefined event feature is captured, for example, a gate that is captured to the monitoring site is entered. At this point, it is determined that an event has occurred.

Step 304: When a predefined event occurs, the event description information of the first video information is saved in the event database by using the event occurrence time and the first camera number as an index.

Step 305: Control a video coding rate of the first video information, and save the video coding information of the first video information in the video database by using an event occurrence time and a first camera number as an index.

When the first camera adopts a panoramic camera, since it is necessary to record the motion trajectory of each moving target in the field of view, it is usually required to encode the video information at a high code rate, and when there is no moving target in the field of view, the video is usually used at a low bit rate. Information is encoded; when the first camera uses a normal fixed focus camera, the video information is encoded at a high code rate when there is an event to be taken, and is used when there is no event to shoot. The low bit rate encodes the video information.

Step 306: Control the second camera to acquire second video information corresponding to the event, and the second camera and the first camera are associated with each other in the field of view.

In the monitoring place, a plurality of second cameras are set according to the number of defined events, and the event video is locally tracked. When it is determined that an event occurs, the second camera corresponding to the event is mobilized. The control parameters of the second camera can be preset, when the event occurs, the position of the second camera is adjusted according to the preset parameters, and the video information that the second camera needs to capture is controlled, including the content of the continuous shooting event video, and A face video image of a person in a zoom shooting event, and the like.

Step 307: Verify whether a predefined event occurs according to the second video information.

The second camera is usually a PTZ camera for targeted shooting of events when it is detected that an event has occurred. Therefore, after the second camera is transferred for detailed shooting, it may be further verified whether a predefined event occurs to further verify whether the predefined event determined according to the first video information actually occurs.

Step 308: When verifying that the predefined event occurs, the second video information is saved by using the event occurrence time and the second camera number as an index.

Step 309: The event description information of the second video information is saved in the event database by using the event occurrence time and the second camera number as an index.

Step 310: Control a video coding rate of the second video information, and store video coding information of the second video information in the video database by using an event occurrence time and a second camera number as indexes.

The second camera uses a PTZ camera to encode video information with high bit rate encoding when the PTZ camera is controlled for shooting. When it is in uncontrolled shooting, the video information can be encoded at a low bit rate.

Step 311: Determine whether a retrieval command including event description information is received, and if yes, execute step 312; otherwise, end the current flow.

Step 312: Find the corresponding camera number and the time when the event occurred in the event database according to the event description information.

Step 313: Find a video database according to the camera number and the time when the event occurs, and obtain corresponding video coding information from the video database, and end the current process.

In the above embodiment, the server and the encoding of the video information may be encoded by the device. The device is timed to keep the server and the encoding device in time.

Referring to FIG. 4A, a schematic structural diagram of a video surveillance processing system for applying the video information processing method embodiment of the present application:

As can be seen from Fig. 4, video shunting devices, visual servers, and time-based devices are added to the system as compared with the prior art.

The camera device in the system may include a panoramic camera, a ΡΤΖ camera and several other cameras. The field of view coordinates of the ΡΤΖ camera and the field of view coordinates of the panoramic camera are normalized by the visual server, and the fields of view of the other cameras and the panoramic camera are visually observed. The server performs association, and the panoramic camera cooperates with the ΡΤΖ camera to realize the overall monitoring of the open area in the business hall by the panoramic camera, and partial shooting and monitoring of a specific area, such as a service window, by the ΡΤΖ camera.

The video content output by all the cameras is divided into two paths through the video splitter, and is input to the visual server for unified processing. The visual server analyzes the video content consistent with the predefined events according to the specific application requirements of the business hall, and saves The index information of the video content, including event description information (occurrence time, corresponding camera number), and event single-frame video or event short-time video, record the above index information in the event database; the other input to the video encoder, The video content is encoded by the video encoder and stored in the video library, and the video content in the video library is saved according to the time of occurrence and the corresponding camera number.

The visual server interprets and analyzes the video according to the preset event. For the event video, the event description information is recorded in the database together with the captured event single frame video or event short time video, and the event description information includes the event type and event. Time, event camera number, etc.; The visual server can also control the video encoder, control the video encoder to encode at a high coding rate for the parsed event video content, and control the video encoder to lower for other video content. The coding rate is encoded.

In order to ensure that the time information in the index information stored in the visual server is consistent with the time of occurrence of the video content stored in the video library, the visual server and the video encoding storage device need to be unified in time through the time device; The camera number contained in the time information also corresponds to the camera number of the encoded video of the encoding device. Among them, the clock of the visual server and the clock of the encoding storage device can be time-dependent by GPS, thereby ensuring the consistency of the clock. Above for time and The uniformity of the camera number is for the subsequent video retrieval, the video index information of the required event can be retrieved from the index information saved in the visual server, and then the corresponding video content is found from the database according to the video index information. Perform unified playback processing. The event video saved in the database corresponds to the encoded event video by the event time and camera number in the event description information.

It should be noted that, for a network camera integrated with the encoding function, the video shunting device in the system can be cancelled, the visual server controls the network camera to encode, and the encoded video information is output to the storage device for storage. . In addition, the system monitor can manually analyze the instant video or playback video on the monitoring management terminal to obtain the event video and store it in the database.

Referring to FIG. 4B, a schematic structural diagram of a system for performing video monitoring and information processing on a business hall in an embodiment of a video information processing method of the present application is as follows:

The pre-defined events are saved in the visual server. The visual server controls the PTZ camera and other cameras to capture the local scene through the panoramic camera. The video captured by the camera is input to the video splitter; the video splitter inputs the video to the video. The visual server analyzes the video by the visual server, interprets the event video, and saves the event description of the event video as an index in the event database, and the video splitter inputs another video into the video encoder. The video encoder is controlled by the visual server to encode the non-event video with a low coding rate, and encodes the event video with a high coding rate; the video encoder inputs the encoded video stream into the video database for storage; The clocks of the server and the video encoder are unified by the device; for the saved video information, the search and extraction conditions can be performed according to the search conditions. Since the present application distinguishes between event video and non-event video, and the event video is saved according to the event occurrence time and the camera number, the event video can be quickly located according to the event description.

The embodiment of the present application is an event-oriented video processing. Therefore, when applying the above system for video information processing, it is first necessary to plan and pre-define the event of interest, and save the predefined event to the visual server, so as to be targeted. Capture and store video content.

For example, for the video surveillance and video processing of the business hall scene, the embodiment of the present application can define the following three types of events:

1. Business hall window event

Business hall window events can define events where staff are in place or out of position, customers to windows, and from the window Oral events, as well as window abandonment events.

In the event that the staff is in place or out of position, the visual server analyzes and processes the video of the camera specially shot for a certain window, and judges the presence and absence of the staff, forming a staff in place or disengagement event, and The description information of the defined event is recorded in the event database.

The customer to the window and the window event, the visual server analyzes and processes the video of the camera specially shot for a window, judges the customer to the window and the window, forms the customer to the window and the window event, and records the event description in In the database.

In the window abandonment event, the video server analyzes and processes the video of the camera that is specifically shot for a certain window, determines the situation where the customer leaves the window and has the item left, forms a window objection, and records the event description in the database.

2, business hall events

The business hall event can define the events of personnel entering and leaving the business hall, the events of the abandoned premises in the business hall, and the events of the business hall.

Among them, when the personnel enters and exits the business hall, the visual server analyzes and processes the panoramic camera video taken in the open area of the venue, judges the situation of the personnel entering and leaving the hall, forms the incident of the personnel entering and leaving the business hall, and forms an event description record. In the database.

In the event of abandoned objects in the business hall, the visual server analyzes and processes the panoramic camera video taken in the open area of the venue, determines the situation after the articles are separated from the person for a certain period of time, forms a site abandoned event, and forms an event description record. In the database.

In the event of an abnormal situation in the business hall, the visual server analyzes and processes the panoramic camera video taken in the open area of the venue. When it is judged that there is a gathering of people or severe behavior of the personnel, an abnormal event of the business hall is formed, and an event description is recorded. In the database.

Based on the event definition and description above, the vision server controls the shooting of the PTZ camera for the above events. When there is a person entering the business hall event, the visual server will control the PTZ camera to track the incoming person and control the face of the zoom photographer. The photo of the controlled face will be recorded in the database after being associated with the event; In the event of an abnormal event in the business hall, the visual server will control the PTZ camera to track and shoot the abnormal event occurrence area, and control the photographs and events of the abnormal area. The pieces are linked and recorded in the database.

The visual server controls the encoding storage of the encoded storage device based on the event video captured as described above. For event video, the visual server controls the encoding storage device to store the video at a high rate encoding for improved resolution and frame rate; when non-event video, the visual server controls the encoding storage device to store the video at a low rate encoding to reduce resolution Rate and frame rate, reducing system storage space. For example, starting from a customer to window event, the vision server controls the code storage device to store the event video at a high code rate until the customer leaves the window event; before the next customer to window event occurs, the vision server controls the code storage device at a low bit rate Store non-event videos.

For the event video that has been stored, the correspondence between the event description and the encoded event video can be established, and the event information is used as an index mark. When the video is played back, the corresponding event video can be called according to the event information, and the non-event video is ignored.

The monitoring management device in the system can complete various applications for the above event video. For example, when the system monitoring manager needs to check the business window service situation, the video can be played back according to the system's service event list generated by the customer to the window and the window event, so that it does not need to be played back like the existing video monitoring system. All the videos captured in one window, from which to find service events to check, improve the performance of the system.

Corresponding to the embodiment of the video information processing method of the present application, the present application also provides an embodiment of a video information processing system and a server.

Referring to FIG. 5, it is a block diagram of a first embodiment of a video information processing system according to the present application. The system includes: a first camera 510 and a server 520.

The first camera 510 is configured to acquire first video information.

The server 520 is configured to save a plurality of predefined event characteristics, and determine, according to the first video information, whether a predefined event occurs, when a predefined event occurs, the time and location of the event The first camera number is an index to save the first video information.

Referring to FIG. 6, which is a block diagram of a second embodiment of a video information processing system of the present application, the system includes: a first camera 610, a second camera 620, a video database 630, an event database 640, an encoder 650, a server 660, and a time device. 670.

The first camera 610 is configured to acquire first video information. The server 660 is configured to save a plurality of predefined event features, and determine, according to the first video information, whether a predefined event occurs, and when a predefined event occurs, the time and location of the event occur. The first camera number is an index to save the first video information;

a second camera 620, configured to acquire second video information corresponding to the event according to a control of the server when a predefined event occurs, where the second camera and the first camera are in a field of view Association

The server 660 is further configured to: verify, according to the second video information, whether a predefined event occurs, and when verifying that a predefined event occurs, storing the time with the occurrence time of the event and the second camera number as an index Said second video information;

The event database 640 is configured to save event description information of the first video information, and an occurrence time of the event and the second, by using an event occurrence time of the event and the first camera number as an index. The camera number is an index, and the event description information of the second video information is saved;

The encoder 650 is configured to encode the first video information and the second video information. The video database 630 is configured to save the first time by using an event occurrence time of the event and the first camera number as an index. Video encoding information of a video information, and storing video encoding information of the second video information by using an occurrence time of the event and the second camera number as an index.

The server 660 is further configured to receive a retrieval command, where the retrieval command includes event description information, and search for a corresponding camera number and an event occurrence time in the event database according to the event description information, and according to the camera number and Finding a video database when the event occurs, and obtaining corresponding video encoding information from the video database;

The device 670 is configured to time the server and the encoder to keep the time of the server and the encoder consistent.

Referring to Figure 7, a block diagram of an embodiment of a server of the present application.

The server includes: a predefined unit 710, an obtaining unit 720, a determining unit 730, and a saving unit 740.

The predefined unit 710 is configured to save a plurality of predefined event features.

The acquiring unit 720 is configured to acquire first video information by using the first camera.

The determining unit 730 is configured to determine, according to the first video information, whether a predefined event occurs; The saving unit 740 is configured to save the first video information by using the event occurrence time and the first camera number as an index when a predefined event occurs.

Specifically, the determining unit 730 may include (not shown in FIG. 7): an information analyzing subunit, configured to analyze the acquired first video information, and a time determining subunit, configured to be used in the first video information A pre-defined event occurrence is determined when the extracted event feature is consistent with the predefined event feature.

Further, the server may further include: (not shown in FIG. 7): a control unit, configured to: when a predefined event occurs, control the second camera to acquire second video information corresponding to the event, where the second The camera is associated with the first camera in the field of view; a verification unit, configured to verify whether a predefined event occurs according to the second video information; and the saving unit 740 is further configured to verify that a predefined event occurs And saving the second video information with the occurrence time of the event and the second camera number as a bow.

Specifically, the saving unit 740 may include (not shown in FIG. 7): an event description information saving subunit, configured to save the event in an event database by using an event occurrence time of the event and the first camera number as an index The event description information of the first video information, and the event description information of the second video information is saved in the event database by using the event occurrence time and the second camera number as an index; the video coding information saving subunit, And storing video coding information of the first video information in a video database with an occurrence time of the event and the first camera number as an index, and a time of occurrence of the event and the second camera number For indexing, the video encoding information of the second video information is saved in a video database.

Further, the server may further include (not shown in FIG. 7): a receiving unit, configured to receive a retrieval command, where the retrieval command includes event description information, and a searching unit, configured to: in the event database according to the event description information Finding a corresponding camera number and a time when the event occurs, and searching a video database according to the camera number and the time when the event occurs, and acquiring corresponding video encoding information from the video database; and an encoding control unit, configured to generate according to the a predefined event, controlling a video encoding rate of the first video information and the second video information.

According to the description of the foregoing embodiments, in the embodiment of the present application, a plurality of event features defined in advance are saved. After the first video information is acquired by the first camera, whether the pre-defined event occurs is determined according to the first video information. When a predefined event occurs, the time of occurrence of the event And storing the first video information with the first camera number as an index. Applying the video monitoring and video information processing in the embodiment of the present application, the captured video information corresponding to the event may be saved in a targeted manner, and the preset is captured by the association between the first camera and the second camera. When the event occurs, the second camera can acquire the target video information consistent with the preset event, so that the system can acquire the video information in a targeted manner; since the video information can be stored according to the event description information, when searching and searching, It can be automated by the system, increasing the availability of the system.

It will be apparent to those skilled in the art from the above description of the embodiments that the present application can be implemented by means of software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, may be embodied in the form of a software product, which may be stored in a storage medium such as a ROM/RAM or a disk. , an optical disk, etc., includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present application or portions of the embodiments.

The various embodiments in the present specification are described in a progressive manner, and the same parts of the various embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the comparison is described, and the relevant parts can be referred to the description of the method embodiment.

While the present invention has been described by the embodiments of the invention, it will be understood by those skilled in the art

Claims

Rights request

A video information processing method, characterized in that a plurality of predefined event features are saved, the method comprising:

Acquiring the first video information by using the first camera;

Determining, according to the first video information, whether a predefined event occurs;

2. The method according to claim 1, wherein the determining, according to the first video information, whether a predefined event occurs comprises:

Analyzing the obtained first video information;

3. The method according to claim 1, further comprising:

The method according to claim 3, wherein the saving the first video information by using the event occurrence time and the first camera number as an index comprises:

Preserving in the video database with the occurrence time of the event and the second camera number as an index Video coding information of the second video information.

5. The method according to claim 4, further comprising:

Finding a corresponding camera number and an event occurrence time in the event database according to the event description information;

And searching for a video database according to the camera number and the time when the event occurs, and acquiring corresponding video encoding information from the video database.

6. The method according to claim 3, further comprising:

A video information processing system, comprising: a first camera and a server, wherein the first camera is configured to acquire first video information;

8. The system according to claim 7, further comprising:

9. The system of claim 8 further comprising: a video database, an event database, an encoder, and a time system device,

The video database, configured to use the time of occurrence of the event and the first camera number The video encoding information of the first video information is saved, and the video encoding information of the second video information is saved by using an occurrence time of the event and the second camera number as an index.

10. The system of claim 9 wherein:

The server is further configured to receive a retrieval command, where the retrieval command includes event description information, and search for a corresponding camera number and an event occurrence time in the event database according to the event description information, and according to the camera number and event The time of occurrence finds a video database, and corresponding video encoding information is obtained from the video database.

11. A server, comprising:

a predefined unit for storing a plurality of predefined event features;

The server according to claim 11, wherein the determining unit comprises: an information analyzing subunit, configured to analyze the acquired first video information;

The server according to claim 11, further comprising:

The server according to claim 13, wherein the saving unit comprises: an event description information saving subunit, configured to use the event occurrence time and the first camera number as an index in the event database Saving event description information of the first video information, and The event occurrence time of the event and the second camera number are indexes, and the event description information of the second video information is saved in the event database;

The server according to claim 14, further comprising:

a receiving unit, configured to receive a retrieval command, where the retrieval command includes event description information, and a searching unit, configured to search for a corresponding camera number and an event occurrence time in the event database according to the event description information, and according to the camera The number and time of occurrence of the event find a video database, and the corresponding video encoding information is obtained from the video database.

The server according to claim 14, further comprising: