Difference method-based indoor video monitoring and alarming method

A technology of video surveillance and differential method, used in alarms, anti-theft alarms, TVs, etc., can solve the problems of not being able to remind users in time, unable to take measures in time, and achieve the effect of saving storage space

Inactive Publication Date: 2010-06-02
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, it is difficult for users to watch video information in front of the screen all the time.
If someone happens to break in illegally when the user leaves the screen, the user cannot be reminded in time at this time, and corresponding measures cannot be taken in time

Method used

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  • Difference method-based indoor video monitoring and alarming method
  • Difference method-based indoor video monitoring and alarming method
  • Difference method-based indoor video monitoring and alarming method

Examples

Experimental program
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Embodiment

[0035] A kind of indoor video surveillance and alarm method based on difference method, its process is as follows figure 1 As shown, the details are as follows:

[0036] Step 1: Start the monitoring camera equipment, collect an image in normal state as the background image, and save the image in the monitoring computer. When collecting, make sure that the scene in the shooting area is a normal scene, that is, there are no people, animals or temporary objects.

[0037] In this embodiment, the size of the collected image is 320×240.

[0038] In this embodiment, a color camera is used, therefore, the captured image should be processed in grayscale in the monitoring computer. Because for a color image, the pixel value of each pixel contains three components of red R, green G, and blue B, so it is necessary to convert the color image into a grayscale image first. The pixel value of the grayscale image contains only one component, which is convenient for subsequent calculations. ...

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Abstract

The invention discloses a difference method-based indoor video monitoring and alarming method, which belongs to the technical field of security guard and monitoring. The method comprises the following steps: firstly, acquiring an image in a normal state as a background image; shooting the images at a certain time interval and calculating an absolute value of a difference between pixel values of corresponding points in each image and the background image to obtain a difference image; scanning each pixel point of the difference image, if the pixel value of some a pixel point is greater than 0, determining the pixel value at the pixel point is remarkably changed with respect to the pixel value of the corresponding point in the background image, if the total number n of the changed pixel points is not less than a preset threshold K, determining an abnormity exists indoors at the time, recording pictures, storing video in a monitoring computer and sending alarming information to a user; otherwise, not recording the pictures and continuing to perform a next image shooting and processing process. In the method, the user needs not to pay attention to a screen at any time, the storage space of the computer is saved and the alarming information can be sent to the user more quickly.

Description

technical field [0001] The invention relates to an indoor monitoring and alarm method, belonging to the technical field of security monitoring. Background technique [0002] With the level of social informatization and the improvement of people's safety awareness, as well as the decline in the prices of electronic products such as computers, cameras, monitors, etc., especially the popularization of the computer Internet, many families or units have begun to equip indoors for the purpose of preventing theft. Surveillance system to play a security role when the home or important office is unoccupied. [0003] In the current video-based indoor monitoring system, the vast majority install cameras at appropriate locations and connect them to computers through wired or wireless means, and store the captured video images into computers, which can be transmitted to remote terminals through the Internet ( Such as a computer or mobile phone at the monitor's location). For example, C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18H04N5/91G08B13/194H04N9/79
Inventor 赵清杰许伟村田晓亮
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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