CN101883263A - Method and system for processing caption information in video monitoring system - Google Patents
Method and system for processing caption information in video monitoring system Download PDFInfo
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- CN101883263A CN101883263A CN201010206087XA CN201010206087A CN101883263A CN 101883263 A CN101883263 A CN 101883263A CN 201010206087X A CN201010206087X A CN 201010206087XA CN 201010206087 A CN201010206087 A CN 201010206087A CN 101883263 A CN101883263 A CN 101883263A
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Abstract
The invention provides a method and a system for processing caption information in a video monitoring system. The method comprises the following steps that: a client acquires a monitoring video code stream and acquires caption information from a front-end management module; the client converts the caption information into character matrixes; and the client superimposes the character matrixes to the video code stream to generate monitoring images with captions. The system comprises a video monitoring platform and the client, wherein the video monitoring platform is used for generating the caption information; the client is used for receiving the caption information and converting the caption information into the character matrixes; the client is further used for superimposing the character matrixes of the caption information to the video code stream so as to generate the monitoring images with the captions. The technical scheme can ensure that the caption information is clear, and cannot be influenced by network transmission.
Description
Technical field
The present invention relates to a kind of field of video monitoring, relate in particular to the processing of caption information in the field of video monitoring.
Background technology
In recent years, along with the develop rapidly of computer, network and image processing, transmission technology, the video monitoring technology has also obtained significant progress.Thereby the video monitoring system of a new generation is carried out long-range video monitoring by the transmission of network realization medium.No matter the user can utilize internet logins such as client such as computer wherever, connects network video monitor and control system, obtains image and sound.Video monitoring is with its intuitive and convenient, abundant information and be widely used in many occasions, as bank, school, hospital, sub-district and highway communication etc.
Generally information such as captions are added on the monitor video to provide monitor client to watch or store video file in the mode of dot matrix in the video monitoring system at present by front end, because caption information requires very high to definition, caption information is unintelligible when the bad situation end of network condition has packet loss promptly might cause watching, if what describe in the caption information is the control point title, be unfavorable for that then monitoring management person location is to go wrong in which monitoring place.On the other hand, the control point is many in the large-scale supervisory control system, and the unified configuration and the management of name information are very important, if by preceding bringing in the name information of configuration video camera, be difficult to guarantee the uniqueness of the video camera title on the different front ends in the same system.
Summary of the invention
The caption information processing method and the system that the purpose of this invention is to provide a kind of video monitoring overcome in front monitoring front-end overlapping text information, caption information disappearance problem during the unstable networks that causes, and the problem of front monitoring front-end Name Conflict in the large-scale supervisory control system.
For achieving the above object, the invention provides the processing method of caption information in a kind of video monitoring system, be used for comprising the video monitoring system of front monitoring front-end, video monitoring platform and client, may further comprise the steps:
Client is obtained the monitor video code stream, and obtains caption information from the front end administration module;
Client generates character pattern with described caption information;
Client is added to character pattern on the video code flow, generates the monitoring image that has captions.
Further, described monitor video code stream is that the step that described client is obtained caption information comprises when monitoring code stream in real time:
Described client control module and described video monitoring platform connect;
Client is obtained caption information from the front end management module of video monitoring platform.
Further, described monitor video code stream is real-time monitoring code stream, and the step that described client is obtained the monitor video code stream comprises:
Media link between described client foundation and the described video monitoring platform;
Client receiver, video code stream;
The client decoder is decoded to video code flow.
Further, described monitor video code stream is the monitoring video code stream, and before client is obtained monitor video code stream and caption information, may further comprise the steps:
The monitor video code stream that described front monitoring front-end is encoded the monitoring image that obtains and will encode sends to described monitor supervision platform;
The front end management module of described monitor supervision platform generates caption information separates with video code flow, generates video file and storage.
On the other hand, the invention provides the treatment system of caption information in a kind of video monitoring system, comprise video monitoring platform and client,
Described video monitoring platform is used to generate caption information;
Described client is used to receive described caption information, and generates character pattern according to described caption information;
Described client also is used for described caption information character pattern is superimposed upon video code flow, generates the monitoring image that has captions.
Further, described client comprises control module, and described control module is used to set up media link, and is used for receiving the real-time video code stream by described media link; Described client also comprises decoder, and described decoder is used for described video code flow is decoded.
Described video monitoring platform comprises: front end management module, described front end management module are used for video camera title, the control point title of configuration monitoring front end, and generate caption information; Message control module, described message control module is used to develop and manage session, business logic processing and control.
From technique scheme as can be seen, obtain caption information, and generate character pattern and be added on the video image, can guarantee the clear of caption information, can not be subjected to the influence of Network Transmission by client.
Description of drawings
Fig. 1 is the structure chart of the supervisory control system that relates to of the method for the invention;
Fig. 2 is the flow process that client is checked real-time monitoring images in the method for the invention;
Fig. 3 is the flow process of client checking monitoring video recording in the method for the invention
Fig. 4 is the embodiment flow process that client is checked surveillance video.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in more detail.
The present invention relates to a kind of video monitoring system, at least comprise video monitoring platform (containing front end management module, message control module, distribution of media and memory module etc.), front monitoring front-end (containing video camera, The Cloud Terrace, encoder etc.), monitor client (containing control desk, decoder, playing module etc.).System configuration as shown in Figure 1.Fig. 1 is the structure chart of the supervisory control system that relates to of the method for the invention, comprises video monitoring front-end, video monitoring platform and client.Wherein front monitoring front-end comprises Video Capture module and coder module at least, and the Video Capture module is responsible for the video information of acquisition monitoring object, and it can be external camera apparatus; Coder module be responsible for to the video information of gathering encode, transcoding and transmission.
Video monitoring platform comprises front end management module, message control module, distribution of media and memory module at least, the front end management module is mainly finished registration, configuration and the management to headend equipment, and video camera ID and title, control point name information etc. on front end ID and title, the front end all are by disposing and manage in the front end management module.Be responsible for configuration management to information such as front end titles.Message control module is responsible for developing and managing session, business logic processing and control, and front monitoring front-end need be set up with the message control module of monitor supervision platform and communicate by letter and media link.Monitor client need be set up the caption information that communication link obtains needs demonstration with the message control module of monitor supervision platform, and sets up media link and obtain the medium code stream.The medium code stream is distributed, transmitted to distribution of media and memory module by the media link of above-mentioned foundation, and storage and management of media file provide medium retrieval and download service.The media link of client by above-mentioned foundation obtains the code stream broadcast of decoding from the distribution of media of monitor supervision platform and memory module.
Client comprises control desk module, decoder module and broadcast display module at least.The control desk module provides the interactive interface with the user, and the user can be provided with the attribute that captions show by this interface checking monitoring front end camera tabulation, as opening/closing captions, the position of captions demonstration, the font attribute of captions etc.Decoder module mainly be responsible for to the medium code stream decoding, generate character pattern, stack dot matrix image and decoding rear video stream according to text message.The broadcast display module is finished decoded Media Stream is exported demonstration, can be external display device.
Caption information processing method in the video monitoring system that the present invention relates to is based on above-mentioned supervisory control system, Fig. 2 is the flow process that client is checked real-time monitoring images in the method for the invention, the front end management of monitor supervision platform partly is provided with and has stored front monitoring front-end, the title of video camera and other caption informations, front monitoring front-end is caught image and to monitor supervision platform generation video code flow, client is to the business platform inquiry and obtain the caption information that needs demonstration, and obtain video code flow and have decoder module to decode, the decoder module of client utilizes image processing techniques simultaneously, generate character pattern according to the captioned test information of obtaining, then the character pattern image overlay is shown to the video image of decoding.
Check the performing step of real-time monitoring images, flow process as shown in Figure 2:
Step 1: the front end management module at monitor supervision platform is unified configuration to each front end, video camera, comprises and distributes front end ID, and video camera ID is provided with the control point title and need carries out the information that captions show.
Step 2: the control module of monitor client set up with business platform between be connected, according to front end ID to be checked and video camera ID from the front end management module inquiry of monitor supervision platform and obtain the control point title or information that other needs show with captions.
Step 3: the client control module is set up media link and is received real-time code stream, decoder module is decoded to code stream, simultaneously generate character pattern, dot matrix image is added on the decoded video flowing, output to playing module and show according to the caption information that obtains.
The performing step of checking monitoring video recording, flow process as shown in Figure 3, Fig. 3 is the flow process of client checking monitoring video recording in the method for the invention, the front end management of monitor supervision platform partly is provided with and has stored front monitoring front-end, the title of video camera and other caption informations, front monitoring front-end is caught image and to monitor supervision platform generation video code flow, the client of monitor supervision platform is to the business platform inquiry and obtain the caption information that needs demonstration, and obtain video code flow and decode, simultaneously produce character pattern according to the caption information that obtains, overlapping text shows to the video image of decoding to be watched.
Step 1: in the front end management module of monitor supervision platform each front end, video camera are unified configuration, comprise and distribute front end ID, video camera ID, the information that the control point title is set and need shows by captions.
Step 2: when recording a video, front monitoring front-end is encoded the monitoring image of catching and is sent code stream to monitor supervision platform, the front end management module of monitor supervision platform is according to the control point title of the video camera ID inquiry correspondence of current video recording or the information that other needs captions show, and the generation caption information separates with video code flow.Making at last becomes a video file and storage.
Step 3: during the video recording of monitor client checking monitoring, the control module of client is set up and is connected with communicating to connect with medium of monitor supervision platform, obtains selected video code stream and caption information.
Step 4: the client decoder module is decoded to the code stream that obtains, parse caption information and code stream information, utilize image processing techniques that caption information is generated character pattern, dot matrix image is added on the decoded video flowing, output to playing module and show.
First embodiment
Make up video monitoring system as shown in Figure 1, comprise front monitoring front-end (containing video camera), video monitoring platform (containing front end management function, service control function, distribution of media and memory function), client (containing control desk, decoding and playing function).
Be the embodiment that client is checked the real-time video monitoring image below.
1, sets up video monitoring system according to framework shown in Figure 1, comprise two front monitoring front-ends, wherein connected 2 video cameras on a front end, connected 4 video cameras on another front end.Also have a monitor supervision platform and a monitor client.
2, by the administration interface of monitor supervision platform, above-mentioned front end, video camera are unified configuration, comprise and distribute front end ID, video camera ID is provided with the control point title and need carries out the information that captions show.An above-mentioned front monitoring front-end ID is A, and the video camera ID that is connected on the A is respectively A1, A2; Another front monitoring front-end ID is B, and the video camera ID that is connected on the B is respectively B3, B4, B5, B6.Wherein the control point title of A1 correspondence is configured to " doorway, hall ", and the control point title of A2 correspondence is configured to " lift port 1 ", and caption information is configured to display monitoring point title.
3, list current front end tabulation A, B on the client end interface, and the camera tabulation, A1, A2, B3, B4, B5, B6.The user wishes to check the real-time video at A1 place, the caption information attribute is set simultaneously for opening captions, and the upper left corner shows, default font.
4, the user selects to check camera A1 place real-time video, client foundation is connected with monitor supervision platform, simultaneously open the captions attribute according to client configuration, to monitor supervision platform request caption information, the front end management module of monitor supervision platform is called " doorway, hall " by front monitoring front-end ID " A " and the corresponding control point name of camera ID " A1 " inquiry; And a control point name information that shows by captions returns to client;
5, monitor supervision platform carries out continuing to requested front monitoring front-end request real-time video code stream after some authentications;
6, the distribution of media of monitor supervision platform and memory module are transmitted the camera real-time video code stream of being asked to client;
7, after client receives caption information, decoder module utilizes image processing techniques, according to the font attribute of client configuration, this captioned test is generated character pattern, and according to the subtitle position attribute of client configuration the be added to upper left corner of decoded video image of dot matrix image;
8, the code stream of overlapping text dot matrix image and real-time video is outputed to display device and play demonstration.This moment, client can be watched the real-time video monitoring image, was superimposed with apparent caption information " doorway, hall " simultaneously in the upper left corner.If this moment, the control point camera went wrong or unstable networks causes video image fuzzy, client still can clear identification caption information, assists positioning problems and solution.
Second embodiment
Be the embodiment that client is checked surveillance video below.As shown in Figure 4:
1, the inquiry inlet of monitoring video is provided on the client end interface, user's input such as control point title, video recording period, whether querying condition such as alarm is arranged;
2, client set up with monitor supervision platform be connected the video file of submitting to video recording querying condition and selection to check.Such as being that front monitoring front-end A1 goes up one section video recording that the control point name is called " doorway, hall ";
3, after the distribution of media of monitor supervision platform and memory module read this video file, the caption information that is resolved to " doorway, hall " was sent to client respectively with character-coded mode and video information.
4, after client receives caption information, decoder module utilizes image processing techniques, according to the font attribute of client configuration, this captioned test is generated character pattern, and according to the subtitle position attribute of client configuration the be added to upper left corner of decoded video image of dot matrix image;
The code stream of overlapping text dot matrix image and real-time video is outputed to display device play demonstration.This moment, client can be watched the real-time video monitoring image, was superimposed with apparent caption information " doorway, hall " simultaneously in the upper left corner.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (8)
1. the processing method of caption information in the video monitoring system is used for comprising may further comprise the steps the video monitoring system of front monitoring front-end, video monitoring platform and client:
Client is obtained the monitor video code stream, and obtains caption information from the front end administration module;
Client generates character pattern with described caption information;
Client is added to character pattern on the video code flow, generates the monitoring image that has captions.
2. caption information processing method as claimed in claim 1 is characterized in that, described monitor video code stream is to monitor code stream in real time, and the step that described client is obtained caption information comprises:
Described client control module and described video monitoring platform connect;
Client is obtained caption information from the front end management module of video monitoring platform.
3. caption information processing method as claimed in claim 2 is characterized in that, described caption information comprises or several combination in the following information:
The title of the ID of front monitoring front-end, the ID of video camera, control point, the address of control point.
4. caption information processing method as claimed in claim 1 or 2 is characterized in that, described monitor video code stream is real-time monitoring code stream, and the step that described client is obtained the monitor video code stream comprises:
Media link between described client foundation and the described video monitoring platform;
Client receiver, video code stream;
The client decoder is decoded to video code flow.
5. caption information processing method as claimed in claim 1 is characterized in that, described monitor video code stream is the monitoring video code stream, and before client is obtained monitor video code stream and caption information, may further comprise the steps:
The monitor video code stream that described front monitoring front-end is encoded the monitoring image that obtains and will encode sends to described monitor supervision platform;
The front end management module of described monitor supervision platform generates caption information separates with video code flow, generates video file and storage.
6. the treatment system of caption information in the video monitoring system comprises video monitoring platform and client, it is characterized in that,
Described video monitoring platform is used to generate caption information;
Described client is used to receive described caption information, and generates character pattern according to described caption information;
Described client also is used for described caption information character pattern is superimposed upon video code flow, generates the monitoring image that has captions.
7. caption information treatment system as claimed in claim 6 is characterized in that,
Described client comprises control module, and described control module is used to set up media link, and is used for receiving the real-time video code stream by described media link;
Described client also comprises decoder, and described decoder is used for described video code flow is decoded.
8. caption information treatment system as claimed in claim 6 is characterized in that, described video monitoring platform comprises:
Front end management module, described front end management module are used for video camera title, the control point title of configuration monitoring front end, and generate caption information; Message control module, described message control module is used to develop and manage session, business logic processing and control.
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| CN201010206087XA CN101883263A (en) | 2010-06-22 | 2010-06-22 | Method and system for processing caption information in video monitoring system |
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| CN201010206087XA CN101883263A (en) | 2010-06-22 | 2010-06-22 | Method and system for processing caption information in video monitoring system |
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Application publication date: 20101110 |