A method for measuring the height of an object

A technology for height measurement and target objects, which is applied in measurement devices, photogrammetry/video measurement, surveying and navigation, etc. It can solve the problems of inappropriate dynamic target measurement, high operating environment requirements, and small scope of application. Achieve the effect of short imaging time, low operating environment requirements, and wide application range

Active Publication Date: 2019-10-25
HOHAI UNIV
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Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a method for measuring the height of the target object, and solve the problems of small application range, complicated operation, heavy equipment weight and high requirements for the operating environment in the prior art object height measurement method. Not suitable for technical problems such as dynamic target measurement

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  • A method for measuring the height of an object
  • A method for measuring the height of an object
  • A method for measuring the height of an object

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0042] A method for measuring the height of an object provided by the invention comprises the following steps:

[0043] (1) Carry out photography and measurement of the target object, and measure the shooting height P of the target object 1 o 1 , shooting tilt angle β, pixel height G'H' of the target object in the photo, vertical pixel distance A from the bottom of the target object to the lower edge of the photo 1 'G';

[0044] When shooting, you can place the shooting camera on a tripod, adjust the distance between the tripod and the target, and the shooting tilt angle of the camera. When taking a photo of the target, the top and bottom of the target must be completely displayed in the phot...

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Abstract

The invention discloses a method for measuring the height of a target object, and the method comprises the steps: photographing the target object, measuring the photographing height and inclination angle of the target object, the pixel height of the target object in a picture, and a vertical pixel distance from the bottom of the target object to the lower edge of the picture; carrying out the photographing of reference points, placing two reference points on the ground, carrying out the photographing of the reference points at the same photographing inclination angle, measuring the photographing heights of the reference points, the distances from the reference points to a projection point of the center of a camera lens on the group, and a pixel distance between the two reference points in the picture; calculating the photogrammetric parameters through the measurement data of the reference points; and calculating the actual height of the target object through the measurement data of the target object and the photogrammetric parameters. The measurement equipment is simple, and the measurement equipment is portable. The requirements for the operating environment are not high, and the application range is wide. The method has the remarkable advantages for the measurement of a dynamic target object.

Description

technical field [0001] The invention relates to a method for measuring the height of an object. Background technique [0002] Object height measurement is a problem often encountered in daily life, engineering and scientific research. The more commonly used height measurement method in daily life is the traditional contact measurement method, which uses a ruler for height measurement. The more commonly used height measurement methods in engineering are ruler height measurement, theodolite combined with steel ruler height measurement, total station height measurement, and laser distance measuring altimeter height measurement. [0003] Using a ruler to measure height is a traditional contact measurement method, which is to use a ruler to measure directly on an object. The advantage of this measurement method is that good measurement accuracy can be guaranteed within the measuring range of the tape measure, the operation is simple and quick, and it is suitable for the measure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/06G01C11/00
CPCG01B11/0608G01C11/00
Inventor 李兰满郑后俊王煊韦双慧范开桂钱江潮朱首贤
Owner HOHAI UNIV
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