Moving target tracking system and tracking method based on random medium surface diffusion light

A random medium, moving target technology, applied in the field of computational imaging technology and target tracking, can solve problems such as narrow target tracking application range

Active Publication Date: 2016-09-28
XIDIAN UNIV
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Problems solved by technology

[0009] The purpose of the present invention is to overcome the above-mentioned defects in the prior art, and propose a moving target tracking system and tracking method based on random medium surface scattered light, which

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  • Moving target tracking system and tracking method based on random medium surface diffusion light
  • Moving target tracking system and tracking method based on random medium surface diffusion light
  • Moving target tracking system and tracking method based on random medium surface diffusion light

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Embodiment Construction

[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0039] see figure 1 , a moving target tracking system based on random medium surface scattered light, including laser 1, beam expander 2, rotating frosted glass 3, random medium 4, aperture stop 5 and detector array 6.

[0040] Among them, the laser 1 adopts a narrow-band laser in the visible light band, because the speckle similarity decreases with the increase of the bandwidth of the light source, so a laser light source with better monochromaticity is used; the beam expander 2 is composed of two convex lenses, and the centers of the two convex lenses are collinear and Placed in parallel, the cross-sectional diameter of the laser can be enlarged by 5 to 10 times to achieve the purpose of increasing the illumination area. In this embodiment, a beam expander model GCO-2503 is used; Eliminate the coherence of the laser; the random medium 4 is ...

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Abstract

The invention provides a moving target tracking system and tracking method based on random medium surface diffusion light to solve the technical problem of narrow application scope of a conventional moving target tracking system and tracking method. The tracking system comprises a laser, a beam expander, rotary ground glass, a random medium, an aperture diaphragm and a detector array, wherein the light emitted by the laser forms pseudothermal light after passing the beam expander and the rotary ground glass and irradiates on a moving target to be tracked, light carrying target information is irradiated onto the scattering surface of the random medium at an acute angle, the diffusion light, of which the stray light is filtered by the aperture diaphragm, is received and acquired by the detector array, and the tracking method is used to calculate the acquired images to obtain the actual displacement of the moving target to be tracked. Target tracking is realized through diffusion light on the surface of a random medium, and the application scope is wide. The system and the method also have the advantages of simple algorithm, high tracking precision and simple system structure, and are applicable to the fields of biomedicine and earth observation.

Description

technical field [0001] The present invention relates to the field of computational imaging technology and target tracking technology, relates to a moving target tracking system and tracking method, in particular to a moving target tracking system and tracking method based on random medium surface scattered light, which can be used in astronomical observation, ground In the fields of observation and biomedicine, it is used to track moving targets hidden behind shelters. Background technique [0002] In the fields of astronomical observation and earth observation, it is often necessary to track moving targets such as vehicles and aircraft. Due to this application requirement, a series of moving target tracking technologies have been produced. Currently, the commonly used target tracking methods include radar tracking methods and vision-based tracking methods. There are two types of moving target tracking methods. [0003] The radar tracking method is a tracking method commonl...

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Application Information

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IPC IPC(8): G01S17/66
CPCG01S17/66
Inventor 刘杰涛李慧娟鞠思文吴腾飞邵晓鹏龚昌妹冯蕾朱大炜郭成飞
Owner XIDIAN UNIV
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