Three-dimensional intelligent video monitoring method

An intelligent video monitoring and three-dimensional technology, applied in closed-circuit television systems, image data processing, 3D modeling, etc., can solve the difficulties of on-site command and scheduling, the inability to accurately locate the location of non-video alarm devices in time, and the inability to meet monitoring tasks, etc. problem, to achieve the effect of improving rapid positioning and processing capabilities, and reducing workload

Active Publication Date: 2011-01-19
BEIJING SISHIELD SECURITY
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AI Technical Summary

Problems solved by technology

However, with the rapid increase in the number of video detectors, traditional manual passive monitoring is far from meeting the needs of monitoring tasks, especially after an emergency oc...

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Embodiment Construction

[0015] like figure 1 As shown, the specific implementation method of the present invention is as follows:

[0016] (1) The steps of firstly carrying out three-dimensional modeling of the actual monitoring area and displaying it as a three-dimensional virtual scene corresponding to the actual monitoring area by software are as follows:

[0017] ①Measure the size of the monitoring area, the size of the building and the installation position of the camera, and use tools such as 3DMAX and AUTOCAD, as well as data sets such as digital surface model (DSM), digital elevation model (DEM) and digital orthophoto map (DOM). The 3D model of the monitoring area, the 3D model includes the realistic model of 3D model + texture and the freehand model of 3D model + perspective. The two models are as follows figure 2 and image 3 shown;

[0018] ②Initialize the parameters of the monitoring area according to the measurement data, including the origin coordinates, length and width of the moni...

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Abstract

The invention relates to a three-dimensional intelligent video monitoring method, which comprises the following specific steps of: firstly, performing three-dimensional modeling on an actual monitoring area and displaying a three-dimensional virtual scene corresponding to the actual monitoring area by using software; secondly, calibrating a camera to acquire the internal and external parameters and distortion correction parameter of the camera and establishing a two-dimensional image and three-dimensional space one-to-one mapping relational model; thirdly, intelligently analyzing a monitoring video acquired by the camera to acquire moving target information comprising a target category, a moving path and the like; fourthly, positioning target information in a two-dimensional image in a three-dimensional space and displaying the target information in the three-dimensional virtual scene in real time; and finally, storing a target two-dimensional video and the moving path in the three-dimensional space synchronously for system retrieval and playback. In the method, a two-dimensional moving target is positioned in the three-dimensional virtual scene by fully utilizing the real three-dimensional space feeling of the three-dimensional virtual scene, so that the ability of monitoring personnel of quickly positioning and processing an alarm event is improved and the workload of the monitoring personnel is effectively relieved.

Description

technical field [0001] The invention relates to a three-dimensional intelligent video monitoring method, which can be used in the field of video monitoring and realizes rapid positioning of moving objects in a monitoring area in a three-dimensional virtual scene. Background technique [0002] With the development of economy and technology, people put forward higher requirements for the safety of living and office environment; the safe operation and safety of key facilities or areas (nuclear power plants, hydropower plants, banks, highways and airports, etc.) Higher requirements are put forward for protection, the security of historical sites and cultural relic museums (Writing Museum and the Palace Museum, etc.) and the security of key military targets and areas (such as armouries); when emergencies occur in key targets and areas, the on-site The rapidity and accuracy of remote analysis, command and dispatch of events put forward higher requirements. An important means of s...

Claims

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Application Information

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IPC IPC(8): H04N7/18G06T17/00G06T7/00
Inventor 李铁军牟风涛赵龙刘卫锋高波
Owner BEIJING SISHIELD SECURITY
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