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Infrared multichannel artificial compound eyes-based method for reconstructing three-dimensional surface topography

A 3D surface and compound eye technology, applied in 3D modeling, image data processing, measuring devices, etc., can solve the problems of difficulty in reconstruction of 3D shape of infrared targets, edge effect gradients, limitations, etc.

Inactive Publication Date: 2011-10-19
STATE GRID CORP OF CHINA +1
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Problems solved by technology

[0003] In the application of various infrared thermal imaging systems, due to the defects of long-wave infrared thermal images such as long correlation length, edge effect gradient, less texture features, and low signal-to-noise ratio, multi-directional infrared thermal images have disadvantages when matching feature points. The large error makes the mature binocular vision target surface topography reconstruction technology limited in the application of medium and long-wave infrared, and the three-dimensional topography reconstruction of infrared targets has also become a problem

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  • Infrared multichannel artificial compound eyes-based method for reconstructing three-dimensional surface topography
  • Infrared multichannel artificial compound eyes-based method for reconstructing three-dimensional surface topography

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Embodiment Construction

[0011] Such as figure 1 , 2 , 3, the present invention is realized in such a way that a plurality of artificial compound eyes 5 are evenly arranged with equal adjacent compound eye principal axis longitude angles 2 and equal adjacent compound eye principal axis latitude angles 8. Each artificial compound eye has the same structure, consisting of compound eye optic nerve 10, infrared monochromatic filter 11 and compound eye retina 12, and contains a large number of ommatidia 15 based on infrared telecentric light path, which can perform near-parallel infrared imaging. The longitude and latitude angles between the optical axes of the respective ommatidia are equal, forming the ommatidium longitude spherical beam 4 and the ommatidium latitude spherical beam 8 with a certain viewing angle range. The ommatidia and compound eye optic nerves 10 in each compound eye are composed of infrared optical fiber bundles, the number of which is equal to the number of ommatidia, and can transm...

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Abstract

The invention relates to an infrared multichannel artificial compound eyes-based method for reconstructing three-dimensional surface topography, which is suitable for reconstructing a three-dimensional surface topography of objects consisting of infrared optical thick materials (materials which are opaque to infrared rays, such as metal, and the like). The method is characterized in that the method adopts a system structure with multiple parallel compound eyes, and each mini eye unit in compound eyes adopts an infrared telecentric optical path to realize structures of subparallel imaging, infrared optical fiber unit waveguide optic nerve and infrared sensor array retina receiving. Multiple mini eye optical axes are converged at a point to form a spherical beam. The mini eye optical axes contained in the multiple compound eyes are crossed with one another in a free space to form multidirectional spherical beams. The method has the advantages of being capable of obtaining multidirectional, wide-viewing-angle and optical thick target-containing surface boundary characteristic points in the free space as well as background infrared intensity information.

Description

technical field [0001] The invention relates to a three-dimensional surface topography reconstruction method, in particular to a three-dimensional surface topography reconstruction method based on infrared multi-channel artificial compound eyes. Background technique [0002] Infrared thermal imaging is a technology that uses infrared detectors to convert invisible infrared radiation into visible images, because the infrared thermal imaging system can work day and night, especially in the dark night. Infrared radiation can penetrate smoke, fog, snow, and haze. It is especially suitable for working in harsh weather conditions, and has a relatively long range. It has a strong ability to identify camouflaged targets and is not easy to be found and interfered. Compared with radar and other systems, infrared The system is small in size, light in weight and low in power consumption. Based on the characteristics of infrared thermal imaging, the system is especially suitable for mil...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/05G01B11/24G01J5/10
Inventor 万雄张志敏王庆
Owner STATE GRID CORP OF CHINA
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