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Information superposition method, information extraction method, apparatus and system of video images

A video image and image technology, applied in image communication, closed-circuit television system, TV system components, etc., can solve the problems of low information recognition efficiency, small amount of information, inaccuracy, etc., to improve analysis and processing efficiency, identify The effect of increased speed and reduced computational load

Active Publication Date: 2012-09-26
PUWELL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the embodiment of the present application provides a method for superimposing information in a video image, a method, a device and a system for extracting information, so as to solve the problem that the existing information superimposition method has a small amount of information and is inaccurate, which leads to the efficiency of information identification. not high problem

Method used

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  • Information superposition method, information extraction method, apparatus and system of video images
  • Information superposition method, information extraction method, apparatus and system of video images
  • Information superposition method, information extraction method, apparatus and system of video images

Examples

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no. 1 example

[0068] see figure 1 , which is the flow chart of the first embodiment of the method for superimposing information in video images in this application:

[0069] Step 101: Receive the original analog video signal acquired by the camera.

[0070] Step 102: After encoding the information to be superimposed on the original analog video signal, superimpose it on a preset area of ​​the original analog video signal.

[0071] Wherein, the information to be superimposed on the original analog video signal may include: time information, prior information, real-time information, and verification information. Specifically, the a priori information can include the event type of the video image, the content of the video recording, the purpose of the video recording, etc.; the real-time information can include the actual time of each frame of video image, the location of the video shooting, real-time warning, etc.; the verification information can include the photographer identity etc.

[...

no. 1 example

[0111] see Figure 6 , which is a block diagram of the first embodiment of the device for superimposing information in video images in this application:

[0112] The device includes: a receiving unit 610 , an encoding unit 620 , a superposition unit 630 and an output unit 640 .

[0113]Wherein, the receiving unit 610 is used to receive the original analog video signal acquired by the camera;

[0114] An encoding unit 620, configured to encode the information to be superimposed on the original analog video signal;

[0115] A superposition unit 630, configured to superimpose the information encoded by the coding unit on a preset area of ​​the original analog video signal;

[0116] The output unit 640 is configured to output an analog video signal superimposed with coding information.

no. 2 example

[0117] see Figure 7 , which is a block diagram of the second embodiment of the device for superimposing information in video images in this application:

[0118] The device includes: a receiving unit 710 , an encoding unit 720 , a superposition unit 730 , an output unit 740 , a compression unit 750 and a storage unit 760 .

[0119] Wherein, the receiving unit 710 is used to receive the original analog video signal acquired by the camera;

[0120] An encoding unit 720, configured to encode information to be superimposed on the original analog video signal;

[0121] A superposition unit 730, configured to superimpose the information encoded by the coding unit on a preset area of ​​the original analog video signal;

[0122] An output unit 740, configured to output an analog video signal superimposed with encoding information.

[0123] A compression unit 750, configured to encode and compress the analog video signal superimposed with encoding information according to a predete...

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Abstract

An embodiment of the application discloses an information superposition method, an information extraction method, an apparatus and a system of video images, wherein the information superposition method comprises the steps of receiving an original analog video signal obtained by a camera, encoding information to be superposed to the original analog video signal and superposing the information to a preset area of the original analog video signal, and outputting the analog video signal which are superposed by encoding information. In the embodiment of the invention, what is superposed in the video signal is encoded information, so that the superposed information occupies a small space and has a reduced interference to the video images, and accordingly the identification speed is improved and the operand is reduced when an information extraction operation is carried out, and the analysis processing efficiency of the video images is improved.

Description

technical field [0001] The present application relates to the technical field of video surveillance, in particular to a method for superimposing information in video images, a method, device and system for extracting information. Background technique [0002] At present, video surveillance has been applied in various fields, such as the business halls of telecommunications, banks and other places. Video surveillance installs cameras in the monitoring places, monitors and records various local areas of the monitoring places through these cameras, and shoots a large amount of video information. And encode and store the video information. In the process of video surveillance, it is necessary to encode and store the captured video, and superimpose various information on the video file. Taking time information as an example, the existing commonly used time information superimposition methods include: directly adding time information to the video file name, or embedding time stam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/262H04N7/18
Inventor 刘光盐李捷
Owner PUWELL TECH
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