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Determining method of moving target height under different projection angles

A dynamic target and determination method technology, applied in image data processing, instruments, calculations, etc., can solve problems such as complex calculations, and achieve the effect of simple and easy determination methods

Inactive Publication Date: 2013-08-21
NANJING PENGYUAN ELECTRICAL
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AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problem that binocular cameras are needed for object recognition in the existing field of computer vision, and its calculation is complex, etc., and provides a real-time method for restoring the height of a dynamic object in an image frame to its position and location in three-dimensional space. high way

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  • Determining method of moving target height under different projection angles
  • Determining method of moving target height under different projection angles
  • Determining method of moving target height under different projection angles

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Embodiment Construction

[0018] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0019] The present invention provides a method capable of determining the height of a dynamic target under different projection angles. The method restores the height of the dynamic target in an image frame to its position and height in three-dimensional space in real time, and uses this method to determine the height of the dynamic target. high. Thus, the concrete scheme of the present invention is as follows:

[0020] First, use the real-time image acquisition device integrated with the dynamic target capture of the screen to obtain the position coordinate information of the ground object in the image screen;

[0021] Then, according to the obtained information, some effective points on the surface of the ground object are restored to the gro...

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Abstract

The invention discloses a determining method of a moving target height under different projection angles. The determining method comprises the following steps of obtaining position coordinates of a ground object in an image picture by using a real-time image collecting device which has the function of picture moving target capturing, according to the obtained position coordinate information, restoring a plurality of effective points on a pixel block to actual positions on the ground after projecting the ground object to the image picture, and at last, computing the actual height and position of a moving target according to the geometrical relationship between the ground object and a video camera under the projection of the video camera. The determining method is easy to implement, the characteristics of parameters of the video camera do not need to be considered, rough position restoration can be conducted on the points on the ground, and application scenarios which are not high in precision demands can be satisfied.

Description

technical field [0001] The invention relates to image recognition and camera calibration technology, in particular to a method for determining the height of a dynamic target under different projection angles. Background technique [0002] In some scenarios, there are very strict requirements on the movement of people and their locations, such as places with high-voltage equipment and some sports events. In these situations, it is not only required to monitor the actual location of people in real time, but also to determine the The maximum effective frontier of a representative is managed with the help of such a concept. [0003] In the field of computer vision, everything that involves object recognition must be accurately positioned and three-dimensionally reconstructed with the help of binocular cameras, and both algorithms and operations are particularly complex. In many cases, particularly precise positioning and three-dimensional reconstruction are not required, and it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
Inventor 孙强坤杨伟群毛亚胜王芳
Owner NANJING PENGYUAN ELECTRICAL
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