Long-distance target object measuring method and system based on refrigeration medium-wave thermal imaging rotary table

A measurement method and measurement system technology, applied in the field of long-distance target object measurement, can solve the problems of poor distance and relative coordinate accuracy, technical failure, system responsibility, etc., achieve short imaging time and measurement time, suppress background clutter, and improve The effect of the signal-to-noise ratio

Inactive Publication Date: 2020-09-18
北京华成智云软件股份有限公司
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Problems solved by technology

The binocular and multi-eye measurement accuracy is high, but the system is more responsible, and there are special constraints, such as binocular baseline accuracy requires extremely high stability of the measurement platform
Monocular measurement mainly uses scene feature information for calculation and measurement, which has the advantages of simple equipment and low cost, but traditional monocular measurement cannot meet the

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  • Long-distance target object measuring method and system based on refrigeration medium-wave thermal imaging rotary table
  • Long-distance target object measuring method and system based on refrigeration medium-wave thermal imaging rotary table
  • Long-distance target object measuring method and system based on refrigeration medium-wave thermal imaging rotary table

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Embodiment Construction

[0067] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with examples. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0068] Such as figure 1 As shown, the refrigerated medium-wave thermal imaging turntable is fixedly installed at an outdoor commanding height, and there is no obstruction between the target and the object. Adjust the turntable's steering and the focal length of the thermal imaging lens, collect the thermal imaging image of the long-distance target and perform laser distance measurement. The computer calculates the size and distance of the target to complete the measurement.

[0069] Work flow chart of long-distance target measurement based on refrigerated mid-wave thermal imaging turntable figure 2 As shown, the specific imp...

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Abstract

The invention provides a long-distance target object measuring method based on a refrigeration medium wave thermal imaging rotary table. According to the method, a refrigeration medium-wave thermal imaging sensor is used for obtaining a thermal imaging image of a long-distance target object and carrying out preprocessing to obtain a high-quality image, a laser range finder is used for carrying outtarget object range finding, the height, width and relative coordinates of the target object are calculated through the thermal imaging image, turntable parameters and range finding values, and target object measurement is achieved. According to the invention, under the condition of low visibility, measurement with higher sensitivity, higher precision and smaller error can be carried out on a long-distance target object.

Description

Technical field [0001] The invention relates to the technical field of long-distance target measurement, in particular to a measurement method and system based on refrigerated medium-wave thermal imaging, turntable and laser ranging. Background technique [0002] Target measurement is a problem often encountered in the field of long-distance and large-scale security protection, especially the measurement of long-distance targets under low visibility conditions has always been a difficult point. [0003] Visual measurement is the use of a camera to take an image of the measured target, and the computer quickly extracts the characteristic signal of the target image. After analysis and calculation, the width, height, relative coordinates and other parameters of the measured target are obtained. Compared with other measurement methods, visual ranging is a passive measurement, that is, it does not need to transmit any signal to the target, just take the image of the target. The image o...

Claims

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Application Information

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IPC IPC(8): G01C11/00G01C3/00
CPCG01C3/00G01C11/00
Inventor 黎永志娄健张焱辉
Owner 北京华成智云软件股份有限公司
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