Single-gun-camera-multi-dome-camera linkage method based on grid combination interpolation

A single-bolt, multi-dome technology, applied in the fields of video analysis, video surveillance, computer vision and pattern recognition, it can solve the problems of discontinuous tracking of the dome and the jitter of the dome, and achieve convenient and quick calibration of scenes and targets. Accurate tracking, overcoming the discontinuous effect of the tracking screen of the dome camera

Inactive Publication Date: 2013-05-01
UNIV OF SCI & TECH OF CHINA
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The object of the present invention is: aiming at the problems existing in the prior art, how to overcome the disadvantages of discontinuous tracking picture of the dome machine and jittering of the dome machine pictur

Method used

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  • Single-gun-camera-multi-dome-camera linkage method based on grid combination interpolation
  • Single-gun-camera-multi-dome-camera linkage method based on grid combination interpolation
  • Single-gun-camera-multi-dome-camera linkage method based on grid combination interpolation

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Embodiment Construction

[0039] The single gun machine-multi-ball machine linkage algorithm process of the present invention is as attached figure 1 Shown in, below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0040] 1. The specific steps of camera scene calibration are as follows:

[0041] a. Log in the gun camera first and then log in the dome camera that needs to be calibrated to log in to the platform as attached Figure 5 shown.

[0042] b. Fix the trigger and select a trigger scene as a test scene. Adjust the focal length of the dome camera so that the height of the person in the dome camera occupies about 1 / 2 of the dome camera screen (the image of the dome camera is enlarged and displayed) and fix the focal length, and then use the three-dimensional positioning to continuously adjust the dome camera so that the center of the picture is in line with the dome camera. The center of the scene coincides. At this time, set the preset p...

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Abstract

The invention provides a single- gun-camera-multi-dome-camera linkage method based on grid combination interpolation, which adopts a gun-camera-dome-camera linkage algorithm of the grid combination interpolation. The method comprises the following steps of step a, calibrating a gun camera scene: uniformly dividing a gun camera picture into m rows and n columns of grids and selecting four characteristic points in the grids to be calibrated; step b, acquiring a detection tracking result of a gun camera to be used as input; step c, acquiring deviation of a dome camera: judging a grid in which a target stays, selecting three adjacent characteristic points in the grid to be interpolated, and solving a deviation quantity of a steering target of the dome camera; and step d, controlling the dome camera: utilizing a three-dimensional positioning function in the control of a dome camera holder to control a steering target position of the dome camera so as to track a target. Due to the adoption of the method, the weaknesses that the dome camera tracking picture is discontinuous and the dome camera picture is fluttered can be overcome.

Description

technical field [0001] The present invention relates to the fields of video monitoring, video analysis, computer vision, pattern recognition, etc., and specifically relates to a single-armed-multi-ball machine linkage method based on grid-combined interpolation, which is particularly suitable for single-armed-multi-ball machine linkage Intelligent visual surveillance system (bolt camera refers to bullet camera, dome camera refers to dome camera). Background technique [0002] As an extremely effective means of modern management monitoring and security precautions, video surveillance has been widely used in various public places such as banks, stations, and office buildings. In recent years, due to the urgent need for public security and the continuous development of computer technology, visual monitoring is changing from traditional models to intelligent monitoring, and its related technologies have gradually become research hotspots in computer vision. Intelligent monitori...

Claims

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Application Information

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IPC IPC(8): H04N7/18
Inventor 陈宗海林名强张陈斌钱生赵宇宙
Owner UNIV OF SCI & TECH OF CHINA
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