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Method for carrying out early warning on trampling and damage degree of lawn

A technology of hazard degree and lawn, applied in the field of computer vision monitoring, it can solve the problems of single monitoring results and large investment.

Inactive Publication Date: 2014-01-22
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the large investment in the traditional monitoring method, the single monitoring result, and relying more on the manual work of the monitoring personnel to determine the degree of trampling and an early warning method for lawn trampling and damage.

Method used

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  • Method for carrying out early warning on trampling and damage degree of lawn
  • Method for carrying out early warning on trampling and damage degree of lawn
  • Method for carrying out early warning on trampling and damage degree of lawn

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Embodiment 1

[0076] This embodiment realizes the whole process of installation and parameter initialization of an early warning method for lawn trampling and damage.

[0077] 1. Placement of equipment: The monitoring camera is placed on a high place of the building so that the monitoring area can cover the monitored lawn. Through multiple groups of cameras, the purpose of covering the entire grassland of the park or scenic area can be achieved; the above The monitoring camera needs to be connected to the corresponding BNC interface of the video capture card by its own BNC interface through an ultra-long BNC connecting line; the video capture card is connected to the monitoring host through the PCI interface, so that the monitoring host Can read the video signal that monitoring camera is gathered; Described display is connected with monitoring host through VGA interface (or DVI interface, depending on the interface that monitoring host provides); The audio interface is connected with the 3....

Embodiment 2

[0113] This embodiment realizes the whole process of early warning of a method for early warning of lawn trampling and damage degree.

[0114] 1. The image acquisition module uses a surveillance camera to monitor the monitoring area. Since the movement of pedestrians does not change much within a second, the image acquisition interval can be set to more than 1 second, thereby reducing the system load.

[0115] 2. The motion detection module first sends the rgb image matrix X delivered by the image acquisition module rgb Convert to grayscale image matrix X gray , the rgb image matrix, each pixel has three values ​​r: red, g: green, b: blue, the range is 0 to 255, the conversion formula is: 0.299×r+0.587×g+0.114× b; secondly, use the matrix M saved by the background subtraction module 1 with X gray The corresponding elements in are multiplied, and the resulting mark is X marked , so that X gray The non-green area in the center is set to 0. Finally, the frame difference meth...

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Abstract

The invention discloses a method for carrying out early warning on a trampling and damage degree of a lawn. An image acquisition module adopts a monitoring camera to transmit an acquired image to a background subtraction module; a motion detection module calculates whether motion occurs to a received motion image by using a frame difference method; the background subtraction module simply subtracts a background in the received image and then transmits the obtained image to an image filtering module; the image filtering module filters the image by using a notching filter; a human body distinguishing module classifies the image filtered by the image filtering module by a linear distinguishing analysis method so as to determine whether a currently detected individual is a human body; a people number estimation module carries out estimation on the number of people and transmits a result to a display and alarm module; the display and alarm module carries out display according to a received people number estimation result and carries out alarm according to the severity degree corresponding to the identified people number.

Description

technical field [0001] The invention relates to the technical field of computer vision monitoring, in particular to an early warning method for tourists trampling on the lawn and the degree of harm. Background technique [0002] In parks and scenic areas, there are a large number of grasslands, and these grasslands are often trampled by tourists. At present, there are few patents for the trampling detection of grasslands. The traditional monitoring methods mainly include: 1. Building fences, this method The cost is huge, and the fence is easy to be crossed or even damaged by tourists, and the maintenance cost in the later period is also huge; 2. The installation of a large number of monitoring equipment is judged manually. This method requires the monitoring personnel to stare at the monitoring screen for a long time, which is harmful to the monitoring staff Physical and mental health is unfavorable; 3. A small number of devices with intelligent monitoring equipment can only...

Claims

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Application Information

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IPC IPC(8): G08B21/18
Inventor 于哲舟刘昱昊李斌逄淑超郑恒刘继健吴朝霞章杰
Owner JILIN UNIV
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