Video positioning and parameter computation method based on picture sectioning

A technology of screen segmentation and parameter calculation, which can be used in computing, image analysis, image data processing, etc., and can solve the problems of high system cost and large data.

Inactive Publication Date: 2008-03-19
黄柏霞
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] There are also systems that use video surveillance and GIS systems for linkage to locate and calculate parameters. Firstly, the cost of the system is very high; secondly, the data required by GIS is very large

Method used

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  • Video positioning and parameter computation method based on picture sectioning
  • Video positioning and parameter computation method based on picture sectioning
  • Video positioning and parameter computation method based on picture sectioning

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Embodiment Construction

[0015] The specific implementation of this method is as follows:

[0016] 1. For the segmentation of the monitoring field of view, the first thing to do is to plan and segment the field of view of each camera. As shown in Figure 1, the monitoring range of each camera is a circle centered on the camera. First divide the field of view of each camera into several independent first-level sub-fields of view according to a certain angle, and then further divide each sub-field of view into a second-level field of view with a smaller angle according to the needs of the monitor. The field of view is divided, so that the entire field of view of each camera can be divided into the structure shown in Figure 1; the final field of view in the figure can meet the requirements of the monitor for clear monitoring, and the less overlap between the fields of view, the better.

[0017] 2. Segmentation of the monitoring screen, displaying the first-level field of view images after the above segme...

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Abstract

The invention relates to a method based on a multilevel split screen for image location and parameter calculation, which mainly comprises splitting a monitoring visual field, splitting a monitoring screen, linking the split screen with the split visual field at a predetermined spot of a camera, defining the parameters of the last level screen (mainly comprising a horizontal initial angle, an end angle, a distance closest to the camera monitoring point, a distance farthest to the camera monitoring point and a region name) and defining a calculation method of the target parameters (mainly involving the calculation of angles and distances to the camera). With the inventive method, the system can automatically feedback the information (geographical position and distance) of the monitored point according to the request of the operator during the monitoring process, and is significant in the fields of forest-fire prevention, frontier defense, water way and fire control, as well as is helpful for the operator to rapidly and accurately judge the related geographical information and take command and control in time when detecting abnormal conditions by the long-distance image monitoring system.

Description

technical field [0001] The invention belongs to a method for realizing image positioning and parameter calculation in digital video monitoring, and can realize a method for feeding back related information of video background to an operator. Background technique [0002] With the development of video surveillance technology and communication technology, remote video surveillance system has been widely used in all walks of life. Remote centralized monitoring can be realized through the remote video digital monitoring system, which is more powerful for forests, waterways, frontier defense and other occasions. It can realize large-scale monitoring with less manpower. [0003] For this type of system, a monitoring center is generally set up in the management center, and an on-duty person is set up in the monitoring center. The on-duty person realizes the monitoring of each site through the operation of the monitoring system (mainly through the control keyboard or computer). Ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/18G06T7/00
Inventor 黄柏霞
Owner 黄柏霞
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